From 49f388e5cc5dd590878f467d503f6cbee720a885 Mon Sep 17 00:00:00 2001
From: Robert Long <robert@robertlong.me>
Date: Fri, 2 Mar 2018 15:52:00 -0800
Subject: [PATCH] Webpack Refactor and React Setup (#57)

* Removed handlebars Plugin, upgraded to Webpack 4, use Dotenv, fix HTTPS

* Remove webpack.dev.js

* Add git repository to package.json

* Basic onboarding scaffolding.

* Update aframe dep and yarn.lock.
---
 .gitignore                            |     2 +
 README.md                             |    22 -
 config.js                             |    16 -
 package.json                          |    47 +-
 scripts/default.env                   |     5 +
 scripts/postinstall.js                |     9 +
 src/assets/aframe.js                  | 82197 ------------------------
 templates/index.hbs => src/lobby.html |     6 -
 src/lobby.js                          |    14 +-
 src/onboarding.css                    |    15 +
 src/onboarding.html                   |    12 +
 src/onboarding.js                     |    51 +
 src/room.css                          |    13 +
 templates/room.hbs => src/room.html   |    51 +-
 src/room.js                           |   110 +-
 templates/HandlebarsTemplatePlugin.js |    83 -
 templates/helpers.js                  |    53 -
 webpack.common.js                     |   134 -
 webpack.config.js                     |   196 +
 webpack.dev.js                        |    25 -
 webpack.prod.js                       |    20 -
 yarn.lock                             |  2111 +-
 22 files changed, 1914 insertions(+), 83278 deletions(-)
 delete mode 100644 config.js
 create mode 100644 scripts/default.env
 create mode 100644 scripts/postinstall.js
 delete mode 100644 src/assets/aframe.js
 rename templates/index.hbs => src/lobby.html (54%)
 create mode 100644 src/onboarding.css
 create mode 100644 src/onboarding.html
 create mode 100644 src/onboarding.js
 create mode 100644 src/room.css
 rename templates/room.hbs => src/room.html (81%)
 delete mode 100644 templates/HandlebarsTemplatePlugin.js
 delete mode 100644 templates/helpers.js
 delete mode 100644 webpack.common.js
 create mode 100644 webpack.config.js
 delete mode 100644 webpack.dev.js
 delete mode 100644 webpack.prod.js

diff --git a/.gitignore b/.gitignore
index 7cd721e4a..d196a5b21 100644
--- a/.gitignore
+++ b/.gitignore
@@ -61,3 +61,5 @@ typings/
 public/
 
 .DS_Store
+
+certs/
\ No newline at end of file
diff --git a/README.md b/README.md
index c6341e6b6..6da5b2154 100644
--- a/README.md
+++ b/README.md
@@ -20,25 +20,3 @@ To bundle javascript and generate the html templates, run:
 ```sh
 yarn build
 ```
-
-### Using CDN Assets
-
-If you are hosting your static assets at separate path from the html documents,
-the asset handlebars helper supports rewriting the base asset paths. To use it
-run:
-
-```sh
-BASE_ASSETS_PATH="https://cdn.mysite.com/assets/" yarn build
-```
-
-Ex.
-
-```hbs
-<img src="{{asset "asseturl.png"}}"/>
-```
-
-Will become:
-
-```html
-<img src="https://cdn.mysite.com/assets/asseturl.png?crc=f37a775"/>
-```
diff --git a/config.js b/config.js
deleted file mode 100644
index 88ac5cdc8..000000000
--- a/config.js
+++ /dev/null
@@ -1,16 +0,0 @@
-module.exports = {
-  // This origin trial token is used to enable WebVR and Gamepad Extensions on Chrome 62+
-  // You can find more information about getting your own origin trial token here: https://github.com/GoogleChrome/OriginTrials/blob/gh-pages/developer-guide.md
-  originTrialToken:
-    "AvIMoF4hyRZQVfSfksoqP+7qzwa4FSBzHRHvUyzC8rMATJVRbcOiLewBxbXtJVyV3N62gsZv7PoSNtDqqtjzYAcAAABkeyJvcmlnaW4iOiJodHRwczovL3JldGljdWx1bS5pbzo0NDMiLCJmZWF0dXJlIjoiV2ViVlIxLjFNNjIiLCJleHBpcnkiOjE1MTYxNDYyMDQsImlzU3ViZG9tYWluIjp0cnVlfQ==",
-  originTrialExpires: "2018-01-16",
-
-  // These variables are availible on the window.CONFIG object
-  // The exported object must be a valid argument to JSON.stringify()
-  global: {
-    janus_server_url:
-      process.env.JANUS_SERVER || "wss://dev-janus.reticulum.io",
-    public_rooms: [1, 2, 3, 4, 5],
-    default_room: 1
-  }
-};
diff --git a/package.json b/package.json
index 22510a53d..2ca203176 100644
--- a/package.json
+++ b/package.json
@@ -3,10 +3,14 @@
   "version": "0.0.1",
   "main": "src/index.js",
   "license": "MPL-2.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mozilla/mr-social-client.git"
+  },
   "scripts": {
-    "start": "npm run dev",
-    "dev": "webpack-dev-server --https --host 0.0.0.0 --useLocalIp --open --config webpack.dev.js",
-    "build": "cross-env NODE_ENV='production' webpack --config webpack.prod.js",
+    "postinstall": "node ./scripts/postinstall.js",
+    "start": "cross-env NODE_ENV=development webpack-dev-server",
+    "build": "rimraf ./public && cross-env NODE_ENV=production webpack --mode=production",
     "prettier": "prettier --write src/**/*.js"
   },
   "dependencies": {
@@ -15,7 +19,6 @@
     "aframe-input-mapping-component": "https://github.com/johnshaughnessy/aframe-input-mapping-component#23e2855",
     "aframe-teleport-controls": "https://github.com/netpro2k/aframe-teleport-controls#feature/teleport-origin",
     "aframe-xr": "github:brianpeiris/aframe-xr#3162aed",
-    "extract-text-webpack-plugin": "^3.0.2",
     "material-design-lite": "^1.3.0",
     "minijanus": "^0.4.0",
     "naf-janus-adapter": "^0.3.0",
@@ -25,35 +28,31 @@
     "raven-js": "^3.20.1",
     "react": "^16.1.1",
     "react-dom": "^16.1.1",
+    "react-router-dom": "^4.2.2",
     "webrtc-adapter": "^6.0.2"
   },
-  "resolutions": {
-    "webpack-sources": "1.0.1"
-  },
   "devDependencies": {
     "babel-core": "^6.26.0",
-    "babel-loader": "^7.1.2",
+    "babel-loader": "^7.1.3",
     "babel-preset-env": "^1.6.1",
     "babel-preset-react": "^6.24.1",
-    "chokidar": "^1.7.0",
-    "crc": "^3.5.0",
-    "cross-env": "^5.1.1",
-    "css-loader": "^0.28.7",
+    "cross-env": "^5.1.3",
+    "css-loader": "^0.28.10",
+    "dotenv": "^5.0.1",
     "eslint": "^4.10.0",
     "eslint-config-prettier": "^2.6.0",
     "eslint-plugin-prettier": "^2.3.1",
-    "file-loader": "^1.1.5",
-    "filemanager-webpack-plugin": "^1.0.16",
-    "fs-extra": "^4.0.2",
-    "glob": "^7.1.2",
-    "handlebars": "^4.0.11",
-    "optimize-css-assets-webpack-plugin": "^3.2.0",
+    "extract-text-webpack-plugin": "4.0.0-alpha.0",
+    "file-loader": "^1.1.10",
+    "html-loader": "^0.5.5",
+    "html-webpack-plugin": "webpack-contrib/html-webpack-plugin",
+    "lodash": "^4.17.5",
     "prettier": "^1.7.0",
-    "style-loader": "^0.19.0",
-    "uglifyjs-webpack-plugin": "^1.1.2",
-    "webpack": "^3.6.0",
-    "webpack-dev-server": "^2.9.3",
-    "webpack-merge": "^4.1.0",
-    "write-file-webpack-plugin": "^4.2.0"
+    "rimraf": "^2.6.2",
+    "selfsigned": "^1.10.2",
+    "style-loader": "^0.20.2",
+    "webpack": "^4.0.1",
+    "webpack-cli": "^2.0.9",
+    "webpack-dev-server": "^3.0.0"
   }
 }
diff --git a/scripts/default.env b/scripts/default.env
new file mode 100644
index 000000000..6a39a2127
--- /dev/null
+++ b/scripts/default.env
@@ -0,0 +1,5 @@
+# This origin trial token is used to enable WebVR and Gamepad Extensions on Chrome 62+
+# You can find more information about getting your own origin trial token here: https://github.com/GoogleChrome/OriginTrials/blob/gh-pages/developer-guide.md
+ORIGIN_TRIAL_TOKEN="AvIMoF4hyRZQVfSfksoqP+7qzwa4FSBzHRHvUyzC8rMATJVRbcOiLewBxbXtJVyV3N62gsZv7PoSNtDqqtjzYAcAAABkeyJvcmlnaW4iOiJodHRwczovL3JldGljdWx1bS5pbzo0NDMiLCJmZWF0dXJlIjoiV2ViVlIxLjFNNjIiLCJleHBpcnkiOjE1MTYxNDYyMDQsImlzU3ViZG9tYWluIjp0cnVlfQ==",
+ORIGIN_TRIAL_EXPIRES="2018-01-16",
+JANUS_SERVER="wss://dev-janus.reticulum.io"
\ No newline at end of file
diff --git a/scripts/postinstall.js b/scripts/postinstall.js
new file mode 100644
index 000000000..4d88d1a26
--- /dev/null
+++ b/scripts/postinstall.js
@@ -0,0 +1,9 @@
+const fs = require("fs");
+const path = require("path");
+
+const src = path.join(__dirname, "default.env");
+const dst = path.join(__dirname, "..", ".env");
+
+if (!fs.existsSync()) {
+  fs.copyFileSync(src, dst);
+}
diff --git a/src/assets/aframe.js b/src/assets/aframe.js
deleted file mode 100644
index 798cc3938..000000000
--- a/src/assets/aframe.js
+++ /dev/null
@@ -1,82197 +0,0 @@
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.AFRAME = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
-(function (process){
-/**
- * Tween.js - Licensed under the MIT license
- * https://github.com/tweenjs/tween.js
- * ----------------------------------------------
- *
- * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
- * Thank you all, you're awesome!
- */
-
-
-var _Group = function () {
-	this._tweens = {};
-	this._tweensAddedDuringUpdate = {};
-};
-
-_Group.prototype = {
-	getAll: function () {
-
-		return Object.keys(this._tweens).map(function (tweenId) {
-			return this._tweens[tweenId];
-		}.bind(this));
-
-	},
-
-	removeAll: function () {
-
-		this._tweens = {};
-
-	},
-
-	add: function (tween) {
-
-		this._tweens[tween.getId()] = tween;
-		this._tweensAddedDuringUpdate[tween.getId()] = tween;
-
-	},
-
-	remove: function (tween) {
-
-		delete this._tweens[tween.getId()];
-		delete this._tweensAddedDuringUpdate[tween.getId()];
-
-	},
-
-	update: function (time, preserve) {
-
-		var tweenIds = Object.keys(this._tweens);
-
-		if (tweenIds.length === 0) {
-			return false;
-		}
-
-		time = time !== undefined ? time : TWEEN.now();
-
-		// Tweens are updated in "batches". If you add a new tween during an update, then the
-		// new tween will be updated in the next batch.
-		// If you remove a tween during an update, it will normally still be updated. However,
-		// if the removed tween was added during the current batch, then it will not be updated.
-		while (tweenIds.length > 0) {
-			this._tweensAddedDuringUpdate = {};
-
-			for (var i = 0; i < tweenIds.length; i++) {
-
-				if (this._tweens[tweenIds[i]].update(time) === false) {
-					this._tweens[tweenIds[i]]._isPlaying = false;
-
-					if (!preserve) {
-						delete this._tweens[tweenIds[i]];
-					}
-				}
-			}
-
-			tweenIds = Object.keys(this._tweensAddedDuringUpdate);
-		}
-
-		return true;
-
-	}
-};
-
-var TWEEN = new _Group();
-
-TWEEN.Group = _Group;
-TWEEN._nextId = 0;
-TWEEN.nextId = function () {
-	return TWEEN._nextId++;
-};
-
-
-// Include a performance.now polyfill.
-// In node.js, use process.hrtime.
-if (typeof (window) === 'undefined' && typeof (process) !== 'undefined') {
-	TWEEN.now = function () {
-		var time = process.hrtime();
-
-		// Convert [seconds, nanoseconds] to milliseconds.
-		return time[0] * 1000 + time[1] / 1000000;
-	};
-}
-// In a browser, use window.performance.now if it is available.
-else if (typeof (window) !== 'undefined' &&
-         window.performance !== undefined &&
-		 window.performance.now !== undefined) {
-	// This must be bound, because directly assigning this function
-	// leads to an invocation exception in Chrome.
-	TWEEN.now = window.performance.now.bind(window.performance);
-}
-// Use Date.now if it is available.
-else if (Date.now !== undefined) {
-	TWEEN.now = Date.now;
-}
-// Otherwise, use 'new Date().getTime()'.
-else {
-	TWEEN.now = function () {
-		return new Date().getTime();
-	};
-}
-
-
-TWEEN.Tween = function (object, group) {
-	this._object = object;
-	this._valuesStart = {};
-	this._valuesEnd = {};
-	this._valuesStartRepeat = {};
-	this._duration = 1000;
-	this._repeat = 0;
-	this._repeatDelayTime = undefined;
-	this._yoyo = false;
-	this._isPlaying = false;
-	this._reversed = false;
-	this._delayTime = 0;
-	this._startTime = null;
-	this._easingFunction = TWEEN.Easing.Linear.None;
-	this._interpolationFunction = TWEEN.Interpolation.Linear;
-	this._chainedTweens = [];
-	this._onStartCallback = null;
-	this._onStartCallbackFired = false;
-	this._onUpdateCallback = null;
-	this._onCompleteCallback = null;
-	this._onStopCallback = null;
-	this._group = group || TWEEN;
-	this._id = TWEEN.nextId();
-
-};
-
-TWEEN.Tween.prototype = {
-	getId: function getId() {
-		return this._id;
-	},
-
-	isPlaying: function isPlaying() {
-		return this._isPlaying;
-	},
-
-	to: function to(properties, duration) {
-
-		this._valuesEnd = properties;
-
-		if (duration !== undefined) {
-			this._duration = duration;
-		}
-
-		return this;
-
-	},
-
-	start: function start(time) {
-
-		this._group.add(this);
-
-		this._isPlaying = true;
-
-		this._onStartCallbackFired = false;
-
-		this._startTime = time !== undefined ? time : TWEEN.now();
-		this._startTime += this._delayTime;
-
-		for (var property in this._valuesEnd) {
-
-			// Check if an Array was provided as property value
-			if (this._valuesEnd[property] instanceof Array) {
-
-				if (this._valuesEnd[property].length === 0) {
-					continue;
-				}
-
-				// Create a local copy of the Array with the start value at the front
-				this._valuesEnd[property] = [this._object[property]].concat(this._valuesEnd[property]);
-
-			}
-
-			// If `to()` specifies a property that doesn't exist in the source object,
-			// we should not set that property in the object
-			if (this._object[property] === undefined) {
-				continue;
-			}
-
-			// Save the starting value.
-			this._valuesStart[property] = this._object[property];
-
-			if ((this._valuesStart[property] instanceof Array) === false) {
-				this._valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings
-			}
-
-			this._valuesStartRepeat[property] = this._valuesStart[property] || 0;
-
-		}
-
-		return this;
-
-	},
-
-	stop: function stop() {
-
-		if (!this._isPlaying) {
-			return this;
-		}
-
-		this._group.remove(this);
-		this._isPlaying = false;
-
-		if (this._onStopCallback !== null) {
-			this._onStopCallback.call(this._object, this._object);
-		}
-
-		this.stopChainedTweens();
-		return this;
-
-	},
-
-	end: function end() {
-
-		this.update(this._startTime + this._duration);
-		return this;
-
-	},
-
-	stopChainedTweens: function stopChainedTweens() {
-
-		for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
-			this._chainedTweens[i].stop();
-		}
-
-	},
-
-	delay: function delay(amount) {
-
-		this._delayTime = amount;
-		return this;
-
-	},
-
-	repeat: function repeat(times) {
-
-		this._repeat = times;
-		return this;
-
-	},
-
-	repeatDelay: function repeatDelay(amount) {
-
-		this._repeatDelayTime = amount;
-		return this;
-
-	},
-
-	yoyo: function yoyo(yoyo) {
-
-		this._yoyo = yoyo;
-		return this;
-
-	},
-
-	easing: function easing(easing) {
-
-		this._easingFunction = easing;
-		return this;
-
-	},
-
-	interpolation: function interpolation(interpolation) {
-
-		this._interpolationFunction = interpolation;
-		return this;
-
-	},
-
-	chain: function chain() {
-
-		this._chainedTweens = arguments;
-		return this;
-
-	},
-
-	onStart: function onStart(callback) {
-
-		this._onStartCallback = callback;
-		return this;
-
-	},
-
-	onUpdate: function onUpdate(callback) {
-
-		this._onUpdateCallback = callback;
-		return this;
-
-	},
-
-	onComplete: function onComplete(callback) {
-
-		this._onCompleteCallback = callback;
-		return this;
-
-	},
-
-	onStop: function onStop(callback) {
-
-		this._onStopCallback = callback;
-		return this;
-
-	},
-
-	update: function update(time) {
-
-		var property;
-		var elapsed;
-		var value;
-
-		if (time < this._startTime) {
-			return true;
-		}
-
-		if (this._onStartCallbackFired === false) {
-
-			if (this._onStartCallback !== null) {
-				this._onStartCallback.call(this._object, this._object);
-			}
-
-			this._onStartCallbackFired = true;
-		}
-
-		elapsed = (time - this._startTime) / this._duration;
-		elapsed = elapsed > 1 ? 1 : elapsed;
-
-		value = this._easingFunction(elapsed);
-
-		for (property in this._valuesEnd) {
-
-			// Don't update properties that do not exist in the source object
-			if (this._valuesStart[property] === undefined) {
-				continue;
-			}
-
-			var start = this._valuesStart[property] || 0;
-			var end = this._valuesEnd[property];
-
-			if (end instanceof Array) {
-
-				this._object[property] = this._interpolationFunction(end, value);
-
-			} else {
-
-				// Parses relative end values with start as base (e.g.: +10, -3)
-				if (typeof (end) === 'string') {
-
-					if (end.charAt(0) === '+' || end.charAt(0) === '-') {
-						end = start + parseFloat(end);
-					} else {
-						end = parseFloat(end);
-					}
-				}
-
-				// Protect against non numeric properties.
-				if (typeof (end) === 'number') {
-					this._object[property] = start + (end - start) * value;
-				}
-
-			}
-
-		}
-
-		if (this._onUpdateCallback !== null) {
-			this._onUpdateCallback.call(this._object, value);
-		}
-
-		if (elapsed === 1) {
-
-			if (this._repeat > 0) {
-
-				if (isFinite(this._repeat)) {
-					this._repeat--;
-				}
-
-				// Reassign starting values, restart by making startTime = now
-				for (property in this._valuesStartRepeat) {
-
-					if (typeof (this._valuesEnd[property]) === 'string') {
-						this._valuesStartRepeat[property] = this._valuesStartRepeat[property] + parseFloat(this._valuesEnd[property]);
-					}
-
-					if (this._yoyo) {
-						var tmp = this._valuesStartRepeat[property];
-
-						this._valuesStartRepeat[property] = this._valuesEnd[property];
-						this._valuesEnd[property] = tmp;
-					}
-
-					this._valuesStart[property] = this._valuesStartRepeat[property];
-
-				}
-
-				if (this._yoyo) {
-					this._reversed = !this._reversed;
-				}
-
-				if (this._repeatDelayTime !== undefined) {
-					this._startTime = time + this._repeatDelayTime;
-				} else {
-					this._startTime = time + this._delayTime;
-				}
-
-				return true;
-
-			} else {
-
-				if (this._onCompleteCallback !== null) {
-
-					this._onCompleteCallback.call(this._object, this._object);
-				}
-
-				for (var i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
-					// Make the chained tweens start exactly at the time they should,
-					// even if the `update()` method was called way past the duration of the tween
-					this._chainedTweens[i].start(this._startTime + this._duration);
-				}
-
-				return false;
-
-			}
-
-		}
-
-		return true;
-
-	}
-};
-
-
-TWEEN.Easing = {
-
-	Linear: {
-
-		None: function (k) {
-
-			return k;
-
-		}
-
-	},
-
-	Quadratic: {
-
-		In: function (k) {
-
-			return k * k;
-
-		},
-
-		Out: function (k) {
-
-			return k * (2 - k);
-
-		},
-
-		InOut: function (k) {
-
-			if ((k *= 2) < 1) {
-				return 0.5 * k * k;
-			}
-
-			return - 0.5 * (--k * (k - 2) - 1);
-
-		}
-
-	},
-
-	Cubic: {
-
-		In: function (k) {
-
-			return k * k * k;
-
-		},
-
-		Out: function (k) {
-
-			return --k * k * k + 1;
-
-		},
-
-		InOut: function (k) {
-
-			if ((k *= 2) < 1) {
-				return 0.5 * k * k * k;
-			}
-
-			return 0.5 * ((k -= 2) * k * k + 2);
-
-		}
-
-	},
-
-	Quartic: {
-
-		In: function (k) {
-
-			return k * k * k * k;
-
-		},
-
-		Out: function (k) {
-
-			return 1 - (--k * k * k * k);
-
-		},
-
-		InOut: function (k) {
-
-			if ((k *= 2) < 1) {
-				return 0.5 * k * k * k * k;
-			}
-
-			return - 0.5 * ((k -= 2) * k * k * k - 2);
-
-		}
-
-	},
-
-	Quintic: {
-
-		In: function (k) {
-
-			return k * k * k * k * k;
-
-		},
-
-		Out: function (k) {
-
-			return --k * k * k * k * k + 1;
-
-		},
-
-		InOut: function (k) {
-
-			if ((k *= 2) < 1) {
-				return 0.5 * k * k * k * k * k;
-			}
-
-			return 0.5 * ((k -= 2) * k * k * k * k + 2);
-
-		}
-
-	},
-
-	Sinusoidal: {
-
-		In: function (k) {
-
-			return 1 - Math.cos(k * Math.PI / 2);
-
-		},
-
-		Out: function (k) {
-
-			return Math.sin(k * Math.PI / 2);
-
-		},
-
-		InOut: function (k) {
-
-			return 0.5 * (1 - Math.cos(Math.PI * k));
-
-		}
-
-	},
-
-	Exponential: {
-
-		In: function (k) {
-
-			return k === 0 ? 0 : Math.pow(1024, k - 1);
-
-		},
-
-		Out: function (k) {
-
-			return k === 1 ? 1 : 1 - Math.pow(2, - 10 * k);
-
-		},
-
-		InOut: function (k) {
-
-			if (k === 0) {
-				return 0;
-			}
-
-			if (k === 1) {
-				return 1;
-			}
-
-			if ((k *= 2) < 1) {
-				return 0.5 * Math.pow(1024, k - 1);
-			}
-
-			return 0.5 * (- Math.pow(2, - 10 * (k - 1)) + 2);
-
-		}
-
-	},
-
-	Circular: {
-
-		In: function (k) {
-
-			return 1 - Math.sqrt(1 - k * k);
-
-		},
-
-		Out: function (k) {
-
-			return Math.sqrt(1 - (--k * k));
-
-		},
-
-		InOut: function (k) {
-
-			if ((k *= 2) < 1) {
-				return - 0.5 * (Math.sqrt(1 - k * k) - 1);
-			}
-
-			return 0.5 * (Math.sqrt(1 - (k -= 2) * k) + 1);
-
-		}
-
-	},
-
-	Elastic: {
-
-		In: function (k) {
-
-			if (k === 0) {
-				return 0;
-			}
-
-			if (k === 1) {
-				return 1;
-			}
-
-			return -Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);
-
-		},
-
-		Out: function (k) {
-
-			if (k === 0) {
-				return 0;
-			}
-
-			if (k === 1) {
-				return 1;
-			}
-
-			return Math.pow(2, -10 * k) * Math.sin((k - 0.1) * 5 * Math.PI) + 1;
-
-		},
-
-		InOut: function (k) {
-
-			if (k === 0) {
-				return 0;
-			}
-
-			if (k === 1) {
-				return 1;
-			}
-
-			k *= 2;
-
-			if (k < 1) {
-				return -0.5 * Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);
-			}
-
-			return 0.5 * Math.pow(2, -10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI) + 1;
-
-		}
-
-	},
-
-	Back: {
-
-		In: function (k) {
-
-			var s = 1.70158;
-
-			return k * k * ((s + 1) * k - s);
-
-		},
-
-		Out: function (k) {
-
-			var s = 1.70158;
-
-			return --k * k * ((s + 1) * k + s) + 1;
-
-		},
-
-		InOut: function (k) {
-
-			var s = 1.70158 * 1.525;
-
-			if ((k *= 2) < 1) {
-				return 0.5 * (k * k * ((s + 1) * k - s));
-			}
-
-			return 0.5 * ((k -= 2) * k * ((s + 1) * k + s) + 2);
-
-		}
-
-	},
-
-	Bounce: {
-
-		In: function (k) {
-
-			return 1 - TWEEN.Easing.Bounce.Out(1 - k);
-
-		},
-
-		Out: function (k) {
-
-			if (k < (1 / 2.75)) {
-				return 7.5625 * k * k;
-			} else if (k < (2 / 2.75)) {
-				return 7.5625 * (k -= (1.5 / 2.75)) * k + 0.75;
-			} else if (k < (2.5 / 2.75)) {
-				return 7.5625 * (k -= (2.25 / 2.75)) * k + 0.9375;
-			} else {
-				return 7.5625 * (k -= (2.625 / 2.75)) * k + 0.984375;
-			}
-
-		},
-
-		InOut: function (k) {
-
-			if (k < 0.5) {
-				return TWEEN.Easing.Bounce.In(k * 2) * 0.5;
-			}
-
-			return TWEEN.Easing.Bounce.Out(k * 2 - 1) * 0.5 + 0.5;
-
-		}
-
-	}
-
-};
-
-TWEEN.Interpolation = {
-
-	Linear: function (v, k) {
-
-		var m = v.length - 1;
-		var f = m * k;
-		var i = Math.floor(f);
-		var fn = TWEEN.Interpolation.Utils.Linear;
-
-		if (k < 0) {
-			return fn(v[0], v[1], f);
-		}
-
-		if (k > 1) {
-			return fn(v[m], v[m - 1], m - f);
-		}
-
-		return fn(v[i], v[i + 1 > m ? m : i + 1], f - i);
-
-	},
-
-	Bezier: function (v, k) {
-
-		var b = 0;
-		var n = v.length - 1;
-		var pw = Math.pow;
-		var bn = TWEEN.Interpolation.Utils.Bernstein;
-
-		for (var i = 0; i <= n; i++) {
-			b += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);
-		}
-
-		return b;
-
-	},
-
-	CatmullRom: function (v, k) {
-
-		var m = v.length - 1;
-		var f = m * k;
-		var i = Math.floor(f);
-		var fn = TWEEN.Interpolation.Utils.CatmullRom;
-
-		if (v[0] === v[m]) {
-
-			if (k < 0) {
-				i = Math.floor(f = m * (1 + k));
-			}
-
-			return fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);
-
-		} else {
-
-			if (k < 0) {
-				return v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);
-			}
-
-			if (k > 1) {
-				return v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);
-			}
-
-			return fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);
-
-		}
-
-	},
-
-	Utils: {
-
-		Linear: function (p0, p1, t) {
-
-			return (p1 - p0) * t + p0;
-
-		},
-
-		Bernstein: function (n, i) {
-
-			var fc = TWEEN.Interpolation.Utils.Factorial;
-
-			return fc(n) / fc(i) / fc(n - i);
-
-		},
-
-		Factorial: (function () {
-
-			var a = [1];
-
-			return function (n) {
-
-				var s = 1;
-
-				if (a[n]) {
-					return a[n];
-				}
-
-				for (var i = n; i > 1; i--) {
-					s *= i;
-				}
-
-				a[n] = s;
-				return s;
-
-			};
-
-		})(),
-
-		CatmullRom: function (p0, p1, p2, p3, t) {
-
-			var v0 = (p2 - p0) * 0.5;
-			var v1 = (p3 - p1) * 0.5;
-			var t2 = t * t;
-			var t3 = t * t2;
-
-			return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (- 3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
-
-		}
-
-	}
-
-};
-
-// UMD (Universal Module Definition)
-(function (root) {
-
-	if (typeof define === 'function' && define.amd) {
-
-		// AMD
-		define([], function () {
-			return TWEEN;
-		});
-
-	} else if (typeof module !== 'undefined' && typeof exports === 'object') {
-
-		// Node.js
-		module.exports = TWEEN;
-
-	} else if (root !== undefined) {
-
-		// Global variable
-		root.TWEEN = TWEEN;
-
-	}
-
-})(this);
-
-}).call(this,_dereq_('_process'))
-
-},{"_process":6}],2:[function(_dereq_,module,exports){
-var str = Object.prototype.toString
-
-module.exports = anArray
-
-function anArray(arr) {
-  return (
-       arr.BYTES_PER_ELEMENT
-    && str.call(arr.buffer) === '[object ArrayBuffer]'
-    || Array.isArray(arr)
-  )
-}
-
-},{}],3:[function(_dereq_,module,exports){
-module.exports = function numtype(num, def) {
-	return typeof num === 'number'
-		? num 
-		: (typeof def === 'number' ? def : 0)
-}
-},{}],4:[function(_dereq_,module,exports){
-'use strict'
-
-exports.byteLength = byteLength
-exports.toByteArray = toByteArray
-exports.fromByteArray = fromByteArray
-
-var lookup = []
-var revLookup = []
-var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
-
-var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
-for (var i = 0, len = code.length; i < len; ++i) {
-  lookup[i] = code[i]
-  revLookup[code.charCodeAt(i)] = i
-}
-
-revLookup['-'.charCodeAt(0)] = 62
-revLookup['_'.charCodeAt(0)] = 63
-
-function placeHoldersCount (b64) {
-  var len = b64.length
-  if (len % 4 > 0) {
-    throw new Error('Invalid string. Length must be a multiple of 4')
-  }
-
-  // the number of equal signs (place holders)
-  // if there are two placeholders, than the two characters before it
-  // represent one byte
-  // if there is only one, then the three characters before it represent 2 bytes
-  // this is just a cheap hack to not do indexOf twice
-  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
-}
-
-function byteLength (b64) {
-  // base64 is 4/3 + up to two characters of the original data
-  return (b64.length * 3 / 4) - placeHoldersCount(b64)
-}
-
-function toByteArray (b64) {
-  var i, l, tmp, placeHolders, arr
-  var len = b64.length
-  placeHolders = placeHoldersCount(b64)
-
-  arr = new Arr((len * 3 / 4) - placeHolders)
-
-  // if there are placeholders, only get up to the last complete 4 chars
-  l = placeHolders > 0 ? len - 4 : len
-
-  var L = 0
-
-  for (i = 0; i < l; i += 4) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
-    arr[L++] = (tmp >> 16) & 0xFF
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
-  }
-
-  if (placeHolders === 2) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
-    arr[L++] = tmp & 0xFF
-  } else if (placeHolders === 1) {
-    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
-    arr[L++] = (tmp >> 8) & 0xFF
-    arr[L++] = tmp & 0xFF
-  }
-
-  return arr
-}
-
-function tripletToBase64 (num) {
-  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
-}
-
-function encodeChunk (uint8, start, end) {
-  var tmp
-  var output = []
-  for (var i = start; i < end; i += 3) {
-    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
-    output.push(tripletToBase64(tmp))
-  }
-  return output.join('')
-}
-
-function fromByteArray (uint8) {
-  var tmp
-  var len = uint8.length
-  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
-  var output = ''
-  var parts = []
-  var maxChunkLength = 16383 // must be multiple of 3
-
-  // go through the array every three bytes, we'll deal with trailing stuff later
-  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
-    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
-  }
-
-  // pad the end with zeros, but make sure to not forget the extra bytes
-  if (extraBytes === 1) {
-    tmp = uint8[len - 1]
-    output += lookup[tmp >> 2]
-    output += lookup[(tmp << 4) & 0x3F]
-    output += '=='
-  } else if (extraBytes === 2) {
-    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
-    output += lookup[tmp >> 10]
-    output += lookup[(tmp >> 4) & 0x3F]
-    output += lookup[(tmp << 2) & 0x3F]
-    output += '='
-  }
-
-  parts.push(output)
-
-  return parts.join('')
-}
-
-},{}],5:[function(_dereq_,module,exports){
-'use strict';
-// For more information about browser field, check out the browser field at https://github.com/substack/browserify-handbook#browser-field.
-
-module.exports = {
-    // Create a <link> tag with optional data attributes
-    createLink: function(href, attributes) {
-        var head = document.head || document.getElementsByTagName('head')[0];
-        var link = document.createElement('link');
-
-        link.href = href;
-        link.rel = 'stylesheet';
-
-        for (var key in attributes) {
-            if ( ! attributes.hasOwnProperty(key)) {
-                continue;
-            }
-            var value = attributes[key];
-            link.setAttribute('data-' + key, value);
-        }
-
-        head.appendChild(link);
-    },
-    // Create a <style> tag with optional data attributes
-    createStyle: function(cssText, attributes) {
-        var head = document.head || document.getElementsByTagName('head')[0],
-            style = document.createElement('style');
-
-        style.type = 'text/css';
-
-        for (var key in attributes) {
-            if ( ! attributes.hasOwnProperty(key)) {
-                continue;
-            }
-            var value = attributes[key];
-            style.setAttribute('data-' + key, value);
-        }
-        
-        if (style.sheet) { // for jsdom and IE9+
-            style.innerHTML = cssText;
-            style.sheet.cssText = cssText;
-            head.appendChild(style);
-        } else if (style.styleSheet) { // for IE8 and below
-            head.appendChild(style);
-            style.styleSheet.cssText = cssText;
-        } else { // for Chrome, Firefox, and Safari
-            style.appendChild(document.createTextNode(cssText));
-            head.appendChild(style);
-        }
-    }
-};
-
-},{}],6:[function(_dereq_,module,exports){
-// shim for using process in browser
-var process = module.exports = {};
-
-// cached from whatever global is present so that test runners that stub it
-// don't break things.  But we need to wrap it in a try catch in case it is
-// wrapped in strict mode code which doesn't define any globals.  It's inside a
-// function because try/catches deoptimize in certain engines.
-
-var cachedSetTimeout;
-var cachedClearTimeout;
-
-function defaultSetTimout() {
-    throw new Error('setTimeout has not been defined');
-}
-function defaultClearTimeout () {
-    throw new Error('clearTimeout has not been defined');
-}
-(function () {
-    try {
-        if (typeof setTimeout === 'function') {
-            cachedSetTimeout = setTimeout;
-        } else {
-            cachedSetTimeout = defaultSetTimout;
-        }
-    } catch (e) {
-        cachedSetTimeout = defaultSetTimout;
-    }
-    try {
-        if (typeof clearTimeout === 'function') {
-            cachedClearTimeout = clearTimeout;
-        } else {
-            cachedClearTimeout = defaultClearTimeout;
-        }
-    } catch (e) {
-        cachedClearTimeout = defaultClearTimeout;
-    }
-} ())
-function runTimeout(fun) {
-    if (cachedSetTimeout === setTimeout) {
-        //normal enviroments in sane situations
-        return setTimeout(fun, 0);
-    }
-    // if setTimeout wasn't available but was latter defined
-    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
-        cachedSetTimeout = setTimeout;
-        return setTimeout(fun, 0);
-    }
-    try {
-        // when when somebody has screwed with setTimeout but no I.E. maddness
-        return cachedSetTimeout(fun, 0);
-    } catch(e){
-        try {
-            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
-            return cachedSetTimeout.call(null, fun, 0);
-        } catch(e){
-            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
-            return cachedSetTimeout.call(this, fun, 0);
-        }
-    }
-
-
-}
-function runClearTimeout(marker) {
-    if (cachedClearTimeout === clearTimeout) {
-        //normal enviroments in sane situations
-        return clearTimeout(marker);
-    }
-    // if clearTimeout wasn't available but was latter defined
-    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
-        cachedClearTimeout = clearTimeout;
-        return clearTimeout(marker);
-    }
-    try {
-        // when when somebody has screwed with setTimeout but no I.E. maddness
-        return cachedClearTimeout(marker);
-    } catch (e){
-        try {
-            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
-            return cachedClearTimeout.call(null, marker);
-        } catch (e){
-            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
-            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
-            return cachedClearTimeout.call(this, marker);
-        }
-    }
-
-
-
-}
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
-
-function cleanUpNextTick() {
-    if (!draining || !currentQueue) {
-        return;
-    }
-    draining = false;
-    if (currentQueue.length) {
-        queue = currentQueue.concat(queue);
-    } else {
-        queueIndex = -1;
-    }
-    if (queue.length) {
-        drainQueue();
-    }
-}
-
-function drainQueue() {
-    if (draining) {
-        return;
-    }
-    var timeout = runTimeout(cleanUpNextTick);
-    draining = true;
-
-    var len = queue.length;
-    while(len) {
-        currentQueue = queue;
-        queue = [];
-        while (++queueIndex < len) {
-            if (currentQueue) {
-                currentQueue[queueIndex].run();
-            }
-        }
-        queueIndex = -1;
-        len = queue.length;
-    }
-    currentQueue = null;
-    draining = false;
-    runClearTimeout(timeout);
-}
-
-process.nextTick = function (fun) {
-    var args = new Array(arguments.length - 1);
-    if (arguments.length > 1) {
-        for (var i = 1; i < arguments.length; i++) {
-            args[i - 1] = arguments[i];
-        }
-    }
-    queue.push(new Item(fun, args));
-    if (queue.length === 1 && !draining) {
-        runTimeout(drainQueue);
-    }
-};
-
-// v8 likes predictible objects
-function Item(fun, array) {
-    this.fun = fun;
-    this.array = array;
-}
-Item.prototype.run = function () {
-    this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-
-function noop() {}
-
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
-process.prependListener = noop;
-process.prependOnceListener = noop;
-
-process.listeners = function (name) { return [] }
-
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
-
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
-
-},{}],7:[function(_dereq_,module,exports){
-var Buffer = _dereq_('buffer').Buffer; // for use with browserify
-
-module.exports = function (a, b) {
-    if (!Buffer.isBuffer(a)) return undefined;
-    if (!Buffer.isBuffer(b)) return undefined;
-    if (typeof a.equals === 'function') return a.equals(b);
-    if (a.length !== b.length) return false;
-    
-    for (var i = 0; i < a.length; i++) {
-        if (a[i] !== b[i]) return false;
-    }
-    
-    return true;
-};
-
-},{"buffer":8}],8:[function(_dereq_,module,exports){
-(function (global){
-/*!
- * The buffer module from node.js, for the browser.
- *
- * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
- * @license  MIT
- */
-/* eslint-disable no-proto */
-
-'use strict'
-
-var base64 = _dereq_('base64-js')
-var ieee754 = _dereq_('ieee754')
-var isArray = _dereq_('isarray')
-
-exports.Buffer = Buffer
-exports.SlowBuffer = SlowBuffer
-exports.INSPECT_MAX_BYTES = 50
-
-/**
- * If `Buffer.TYPED_ARRAY_SUPPORT`:
- *   === true    Use Uint8Array implementation (fastest)
- *   === false   Use Object implementation (most compatible, even IE6)
- *
- * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
- * Opera 11.6+, iOS 4.2+.
- *
- * Due to various browser bugs, sometimes the Object implementation will be used even
- * when the browser supports typed arrays.
- *
- * Note:
- *
- *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
- *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
- *
- *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
- *
- *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
- *     incorrect length in some situations.
-
- * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
- * get the Object implementation, which is slower but behaves correctly.
- */
-Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
-  ? global.TYPED_ARRAY_SUPPORT
-  : typedArraySupport()
-
-/*
- * Export kMaxLength after typed array support is determined.
- */
-exports.kMaxLength = kMaxLength()
-
-function typedArraySupport () {
-  try {
-    var arr = new Uint8Array(1)
-    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
-    return arr.foo() === 42 && // typed array instances can be augmented
-        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
-        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
-  } catch (e) {
-    return false
-  }
-}
-
-function kMaxLength () {
-  return Buffer.TYPED_ARRAY_SUPPORT
-    ? 0x7fffffff
-    : 0x3fffffff
-}
-
-function createBuffer (that, length) {
-  if (kMaxLength() < length) {
-    throw new RangeError('Invalid typed array length')
-  }
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    that = new Uint8Array(length)
-    that.__proto__ = Buffer.prototype
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    if (that === null) {
-      that = new Buffer(length)
-    }
-    that.length = length
-  }
-
-  return that
-}
-
-/**
- * The Buffer constructor returns instances of `Uint8Array` that have their
- * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
- * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
- * and the `Uint8Array` methods. Square bracket notation works as expected -- it
- * returns a single octet.
- *
- * The `Uint8Array` prototype remains unmodified.
- */
-
-function Buffer (arg, encodingOrOffset, length) {
-  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
-    return new Buffer(arg, encodingOrOffset, length)
-  }
-
-  // Common case.
-  if (typeof arg === 'number') {
-    if (typeof encodingOrOffset === 'string') {
-      throw new Error(
-        'If encoding is specified then the first argument must be a string'
-      )
-    }
-    return allocUnsafe(this, arg)
-  }
-  return from(this, arg, encodingOrOffset, length)
-}
-
-Buffer.poolSize = 8192 // not used by this implementation
-
-// TODO: Legacy, not needed anymore. Remove in next major version.
-Buffer._augment = function (arr) {
-  arr.__proto__ = Buffer.prototype
-  return arr
-}
-
-function from (that, value, encodingOrOffset, length) {
-  if (typeof value === 'number') {
-    throw new TypeError('"value" argument must not be a number')
-  }
-
-  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
-    return fromArrayBuffer(that, value, encodingOrOffset, length)
-  }
-
-  if (typeof value === 'string') {
-    return fromString(that, value, encodingOrOffset)
-  }
-
-  return fromObject(that, value)
-}
-
-/**
- * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
- * if value is a number.
- * Buffer.from(str[, encoding])
- * Buffer.from(array)
- * Buffer.from(buffer)
- * Buffer.from(arrayBuffer[, byteOffset[, length]])
- **/
-Buffer.from = function (value, encodingOrOffset, length) {
-  return from(null, value, encodingOrOffset, length)
-}
-
-if (Buffer.TYPED_ARRAY_SUPPORT) {
-  Buffer.prototype.__proto__ = Uint8Array.prototype
-  Buffer.__proto__ = Uint8Array
-  if (typeof Symbol !== 'undefined' && Symbol.species &&
-      Buffer[Symbol.species] === Buffer) {
-    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
-    Object.defineProperty(Buffer, Symbol.species, {
-      value: null,
-      configurable: true
-    })
-  }
-}
-
-function assertSize (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('"size" argument must be a number')
-  } else if (size < 0) {
-    throw new RangeError('"size" argument must not be negative')
-  }
-}
-
-function alloc (that, size, fill, encoding) {
-  assertSize(size)
-  if (size <= 0) {
-    return createBuffer(that, size)
-  }
-  if (fill !== undefined) {
-    // Only pay attention to encoding if it's a string. This
-    // prevents accidentally sending in a number that would
-    // be interpretted as a start offset.
-    return typeof encoding === 'string'
-      ? createBuffer(that, size).fill(fill, encoding)
-      : createBuffer(that, size).fill(fill)
-  }
-  return createBuffer(that, size)
-}
-
-/**
- * Creates a new filled Buffer instance.
- * alloc(size[, fill[, encoding]])
- **/
-Buffer.alloc = function (size, fill, encoding) {
-  return alloc(null, size, fill, encoding)
-}
-
-function allocUnsafe (that, size) {
-  assertSize(size)
-  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) {
-    for (var i = 0; i < size; ++i) {
-      that[i] = 0
-    }
-  }
-  return that
-}
-
-/**
- * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
- * */
-Buffer.allocUnsafe = function (size) {
-  return allocUnsafe(null, size)
-}
-/**
- * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
- */
-Buffer.allocUnsafeSlow = function (size) {
-  return allocUnsafe(null, size)
-}
-
-function fromString (that, string, encoding) {
-  if (typeof encoding !== 'string' || encoding === '') {
-    encoding = 'utf8'
-  }
-
-  if (!Buffer.isEncoding(encoding)) {
-    throw new TypeError('"encoding" must be a valid string encoding')
-  }
-
-  var length = byteLength(string, encoding) | 0
-  that = createBuffer(that, length)
-
-  var actual = that.write(string, encoding)
-
-  if (actual !== length) {
-    // Writing a hex string, for example, that contains invalid characters will
-    // cause everything after the first invalid character to be ignored. (e.g.
-    // 'abxxcd' will be treated as 'ab')
-    that = that.slice(0, actual)
-  }
-
-  return that
-}
-
-function fromArrayLike (that, array) {
-  var length = array.length < 0 ? 0 : checked(array.length) | 0
-  that = createBuffer(that, length)
-  for (var i = 0; i < length; i += 1) {
-    that[i] = array[i] & 255
-  }
-  return that
-}
-
-function fromArrayBuffer (that, array, byteOffset, length) {
-  array.byteLength // this throws if `array` is not a valid ArrayBuffer
-
-  if (byteOffset < 0 || array.byteLength < byteOffset) {
-    throw new RangeError('\'offset\' is out of bounds')
-  }
-
-  if (array.byteLength < byteOffset + (length || 0)) {
-    throw new RangeError('\'length\' is out of bounds')
-  }
-
-  if (byteOffset === undefined && length === undefined) {
-    array = new Uint8Array(array)
-  } else if (length === undefined) {
-    array = new Uint8Array(array, byteOffset)
-  } else {
-    array = new Uint8Array(array, byteOffset, length)
-  }
-
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    // Return an augmented `Uint8Array` instance, for best performance
-    that = array
-    that.__proto__ = Buffer.prototype
-  } else {
-    // Fallback: Return an object instance of the Buffer class
-    that = fromArrayLike(that, array)
-  }
-  return that
-}
-
-function fromObject (that, obj) {
-  if (Buffer.isBuffer(obj)) {
-    var len = checked(obj.length) | 0
-    that = createBuffer(that, len)
-
-    if (that.length === 0) {
-      return that
-    }
-
-    obj.copy(that, 0, 0, len)
-    return that
-  }
-
-  if (obj) {
-    if ((typeof ArrayBuffer !== 'undefined' &&
-        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
-      if (typeof obj.length !== 'number' || isnan(obj.length)) {
-        return createBuffer(that, 0)
-      }
-      return fromArrayLike(that, obj)
-    }
-
-    if (obj.type === 'Buffer' && isArray(obj.data)) {
-      return fromArrayLike(that, obj.data)
-    }
-  }
-
-  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
-}
-
-function checked (length) {
-  // Note: cannot use `length < kMaxLength()` here because that fails when
-  // length is NaN (which is otherwise coerced to zero.)
-  if (length >= kMaxLength()) {
-    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
-                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
-  }
-  return length | 0
-}
-
-function SlowBuffer (length) {
-  if (+length != length) { // eslint-disable-line eqeqeq
-    length = 0
-  }
-  return Buffer.alloc(+length)
-}
-
-Buffer.isBuffer = function isBuffer (b) {
-  return !!(b != null && b._isBuffer)
-}
-
-Buffer.compare = function compare (a, b) {
-  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
-    throw new TypeError('Arguments must be Buffers')
-  }
-
-  if (a === b) return 0
-
-  var x = a.length
-  var y = b.length
-
-  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
-    if (a[i] !== b[i]) {
-      x = a[i]
-      y = b[i]
-      break
-    }
-  }
-
-  if (x < y) return -1
-  if (y < x) return 1
-  return 0
-}
-
-Buffer.isEncoding = function isEncoding (encoding) {
-  switch (String(encoding).toLowerCase()) {
-    case 'hex':
-    case 'utf8':
-    case 'utf-8':
-    case 'ascii':
-    case 'latin1':
-    case 'binary':
-    case 'base64':
-    case 'ucs2':
-    case 'ucs-2':
-    case 'utf16le':
-    case 'utf-16le':
-      return true
-    default:
-      return false
-  }
-}
-
-Buffer.concat = function concat (list, length) {
-  if (!isArray(list)) {
-    throw new TypeError('"list" argument must be an Array of Buffers')
-  }
-
-  if (list.length === 0) {
-    return Buffer.alloc(0)
-  }
-
-  var i
-  if (length === undefined) {
-    length = 0
-    for (i = 0; i < list.length; ++i) {
-      length += list[i].length
-    }
-  }
-
-  var buffer = Buffer.allocUnsafe(length)
-  var pos = 0
-  for (i = 0; i < list.length; ++i) {
-    var buf = list[i]
-    if (!Buffer.isBuffer(buf)) {
-      throw new TypeError('"list" argument must be an Array of Buffers')
-    }
-    buf.copy(buffer, pos)
-    pos += buf.length
-  }
-  return buffer
-}
-
-function byteLength (string, encoding) {
-  if (Buffer.isBuffer(string)) {
-    return string.length
-  }
-  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
-      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
-    return string.byteLength
-  }
-  if (typeof string !== 'string') {
-    string = '' + string
-  }
-
-  var len = string.length
-  if (len === 0) return 0
-
-  // Use a for loop to avoid recursion
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'ascii':
-      case 'latin1':
-      case 'binary':
-        return len
-      case 'utf8':
-      case 'utf-8':
-      case undefined:
-        return utf8ToBytes(string).length
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return len * 2
-      case 'hex':
-        return len >>> 1
-      case 'base64':
-        return base64ToBytes(string).length
-      default:
-        if (loweredCase) return utf8ToBytes(string).length // assume utf8
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
-    }
-  }
-}
-Buffer.byteLength = byteLength
-
-function slowToString (encoding, start, end) {
-  var loweredCase = false
-
-  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
-  // property of a typed array.
-
-  // This behaves neither like String nor Uint8Array in that we set start/end
-  // to their upper/lower bounds if the value passed is out of range.
-  // undefined is handled specially as per ECMA-262 6th Edition,
-  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
-  if (start === undefined || start < 0) {
-    start = 0
-  }
-  // Return early if start > this.length. Done here to prevent potential uint32
-  // coercion fail below.
-  if (start > this.length) {
-    return ''
-  }
-
-  if (end === undefined || end > this.length) {
-    end = this.length
-  }
-
-  if (end <= 0) {
-    return ''
-  }
-
-  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
-  end >>>= 0
-  start >>>= 0
-
-  if (end <= start) {
-    return ''
-  }
-
-  if (!encoding) encoding = 'utf8'
-
-  while (true) {
-    switch (encoding) {
-      case 'hex':
-        return hexSlice(this, start, end)
-
-      case 'utf8':
-      case 'utf-8':
-        return utf8Slice(this, start, end)
-
-      case 'ascii':
-        return asciiSlice(this, start, end)
-
-      case 'latin1':
-      case 'binary':
-        return latin1Slice(this, start, end)
-
-      case 'base64':
-        return base64Slice(this, start, end)
-
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return utf16leSlice(this, start, end)
-
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = (encoding + '').toLowerCase()
-        loweredCase = true
-    }
-  }
-}
-
-// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
-// Buffer instances.
-Buffer.prototype._isBuffer = true
-
-function swap (b, n, m) {
-  var i = b[n]
-  b[n] = b[m]
-  b[m] = i
-}
-
-Buffer.prototype.swap16 = function swap16 () {
-  var len = this.length
-  if (len % 2 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 16-bits')
-  }
-  for (var i = 0; i < len; i += 2) {
-    swap(this, i, i + 1)
-  }
-  return this
-}
-
-Buffer.prototype.swap32 = function swap32 () {
-  var len = this.length
-  if (len % 4 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 32-bits')
-  }
-  for (var i = 0; i < len; i += 4) {
-    swap(this, i, i + 3)
-    swap(this, i + 1, i + 2)
-  }
-  return this
-}
-
-Buffer.prototype.swap64 = function swap64 () {
-  var len = this.length
-  if (len % 8 !== 0) {
-    throw new RangeError('Buffer size must be a multiple of 64-bits')
-  }
-  for (var i = 0; i < len; i += 8) {
-    swap(this, i, i + 7)
-    swap(this, i + 1, i + 6)
-    swap(this, i + 2, i + 5)
-    swap(this, i + 3, i + 4)
-  }
-  return this
-}
-
-Buffer.prototype.toString = function toString () {
-  var length = this.length | 0
-  if (length === 0) return ''
-  if (arguments.length === 0) return utf8Slice(this, 0, length)
-  return slowToString.apply(this, arguments)
-}
-
-Buffer.prototype.equals = function equals (b) {
-  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
-  if (this === b) return true
-  return Buffer.compare(this, b) === 0
-}
-
-Buffer.prototype.inspect = function inspect () {
-  var str = ''
-  var max = exports.INSPECT_MAX_BYTES
-  if (this.length > 0) {
-    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
-    if (this.length > max) str += ' ... '
-  }
-  return '<Buffer ' + str + '>'
-}
-
-Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
-  if (!Buffer.isBuffer(target)) {
-    throw new TypeError('Argument must be a Buffer')
-  }
-
-  if (start === undefined) {
-    start = 0
-  }
-  if (end === undefined) {
-    end = target ? target.length : 0
-  }
-  if (thisStart === undefined) {
-    thisStart = 0
-  }
-  if (thisEnd === undefined) {
-    thisEnd = this.length
-  }
-
-  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
-    throw new RangeError('out of range index')
-  }
-
-  if (thisStart >= thisEnd && start >= end) {
-    return 0
-  }
-  if (thisStart >= thisEnd) {
-    return -1
-  }
-  if (start >= end) {
-    return 1
-  }
-
-  start >>>= 0
-  end >>>= 0
-  thisStart >>>= 0
-  thisEnd >>>= 0
-
-  if (this === target) return 0
-
-  var x = thisEnd - thisStart
-  var y = end - start
-  var len = Math.min(x, y)
-
-  var thisCopy = this.slice(thisStart, thisEnd)
-  var targetCopy = target.slice(start, end)
-
-  for (var i = 0; i < len; ++i) {
-    if (thisCopy[i] !== targetCopy[i]) {
-      x = thisCopy[i]
-      y = targetCopy[i]
-      break
-    }
-  }
-
-  if (x < y) return -1
-  if (y < x) return 1
-  return 0
-}
-
-// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
-// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
-//
-// Arguments:
-// - buffer - a Buffer to search
-// - val - a string, Buffer, or number
-// - byteOffset - an index into `buffer`; will be clamped to an int32
-// - encoding - an optional encoding, relevant is val is a string
-// - dir - true for indexOf, false for lastIndexOf
-function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
-  // Empty buffer means no match
-  if (buffer.length === 0) return -1
-
-  // Normalize byteOffset
-  if (typeof byteOffset === 'string') {
-    encoding = byteOffset
-    byteOffset = 0
-  } else if (byteOffset > 0x7fffffff) {
-    byteOffset = 0x7fffffff
-  } else if (byteOffset < -0x80000000) {
-    byteOffset = -0x80000000
-  }
-  byteOffset = +byteOffset  // Coerce to Number.
-  if (isNaN(byteOffset)) {
-    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
-    byteOffset = dir ? 0 : (buffer.length - 1)
-  }
-
-  // Normalize byteOffset: negative offsets start from the end of the buffer
-  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
-  if (byteOffset >= buffer.length) {
-    if (dir) return -1
-    else byteOffset = buffer.length - 1
-  } else if (byteOffset < 0) {
-    if (dir) byteOffset = 0
-    else return -1
-  }
-
-  // Normalize val
-  if (typeof val === 'string') {
-    val = Buffer.from(val, encoding)
-  }
-
-  // Finally, search either indexOf (if dir is true) or lastIndexOf
-  if (Buffer.isBuffer(val)) {
-    // Special case: looking for empty string/buffer always fails
-    if (val.length === 0) {
-      return -1
-    }
-    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
-  } else if (typeof val === 'number') {
-    val = val & 0xFF // Search for a byte value [0-255]
-    if (Buffer.TYPED_ARRAY_SUPPORT &&
-        typeof Uint8Array.prototype.indexOf === 'function') {
-      if (dir) {
-        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
-      } else {
-        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
-      }
-    }
-    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
-  }
-
-  throw new TypeError('val must be string, number or Buffer')
-}
-
-function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
-  var indexSize = 1
-  var arrLength = arr.length
-  var valLength = val.length
-
-  if (encoding !== undefined) {
-    encoding = String(encoding).toLowerCase()
-    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
-        encoding === 'utf16le' || encoding === 'utf-16le') {
-      if (arr.length < 2 || val.length < 2) {
-        return -1
-      }
-      indexSize = 2
-      arrLength /= 2
-      valLength /= 2
-      byteOffset /= 2
-    }
-  }
-
-  function read (buf, i) {
-    if (indexSize === 1) {
-      return buf[i]
-    } else {
-      return buf.readUInt16BE(i * indexSize)
-    }
-  }
-
-  var i
-  if (dir) {
-    var foundIndex = -1
-    for (i = byteOffset; i < arrLength; i++) {
-      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
-        if (foundIndex === -1) foundIndex = i
-        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
-      } else {
-        if (foundIndex !== -1) i -= i - foundIndex
-        foundIndex = -1
-      }
-    }
-  } else {
-    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
-    for (i = byteOffset; i >= 0; i--) {
-      var found = true
-      for (var j = 0; j < valLength; j++) {
-        if (read(arr, i + j) !== read(val, j)) {
-          found = false
-          break
-        }
-      }
-      if (found) return i
-    }
-  }
-
-  return -1
-}
-
-Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
-  return this.indexOf(val, byteOffset, encoding) !== -1
-}
-
-Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
-  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
-}
-
-Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
-  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
-}
-
-function hexWrite (buf, string, offset, length) {
-  offset = Number(offset) || 0
-  var remaining = buf.length - offset
-  if (!length) {
-    length = remaining
-  } else {
-    length = Number(length)
-    if (length > remaining) {
-      length = remaining
-    }
-  }
-
-  // must be an even number of digits
-  var strLen = string.length
-  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')
-
-  if (length > strLen / 2) {
-    length = strLen / 2
-  }
-  for (var i = 0; i < length; ++i) {
-    var parsed = parseInt(string.substr(i * 2, 2), 16)
-    if (isNaN(parsed)) return i
-    buf[offset + i] = parsed
-  }
-  return i
-}
-
-function utf8Write (buf, string, offset, length) {
-  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
-}
-
-function asciiWrite (buf, string, offset, length) {
-  return blitBuffer(asciiToBytes(string), buf, offset, length)
-}
-
-function latin1Write (buf, string, offset, length) {
-  return asciiWrite(buf, string, offset, length)
-}
-
-function base64Write (buf, string, offset, length) {
-  return blitBuffer(base64ToBytes(string), buf, offset, length)
-}
-
-function ucs2Write (buf, string, offset, length) {
-  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
-}
-
-Buffer.prototype.write = function write (string, offset, length, encoding) {
-  // Buffer#write(string)
-  if (offset === undefined) {
-    encoding = 'utf8'
-    length = this.length
-    offset = 0
-  // Buffer#write(string, encoding)
-  } else if (length === undefined && typeof offset === 'string') {
-    encoding = offset
-    length = this.length
-    offset = 0
-  // Buffer#write(string, offset[, length][, encoding])
-  } else if (isFinite(offset)) {
-    offset = offset | 0
-    if (isFinite(length)) {
-      length = length | 0
-      if (encoding === undefined) encoding = 'utf8'
-    } else {
-      encoding = length
-      length = undefined
-    }
-  // legacy write(string, encoding, offset, length) - remove in v0.13
-  } else {
-    throw new Error(
-      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
-    )
-  }
-
-  var remaining = this.length - offset
-  if (length === undefined || length > remaining) length = remaining
-
-  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
-    throw new RangeError('Attempt to write outside buffer bounds')
-  }
-
-  if (!encoding) encoding = 'utf8'
-
-  var loweredCase = false
-  for (;;) {
-    switch (encoding) {
-      case 'hex':
-        return hexWrite(this, string, offset, length)
-
-      case 'utf8':
-      case 'utf-8':
-        return utf8Write(this, string, offset, length)
-
-      case 'ascii':
-        return asciiWrite(this, string, offset, length)
-
-      case 'latin1':
-      case 'binary':
-        return latin1Write(this, string, offset, length)
-
-      case 'base64':
-        // Warning: maxLength not taken into account in base64Write
-        return base64Write(this, string, offset, length)
-
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return ucs2Write(this, string, offset, length)
-
-      default:
-        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
-        encoding = ('' + encoding).toLowerCase()
-        loweredCase = true
-    }
-  }
-}
-
-Buffer.prototype.toJSON = function toJSON () {
-  return {
-    type: 'Buffer',
-    data: Array.prototype.slice.call(this._arr || this, 0)
-  }
-}
-
-function base64Slice (buf, start, end) {
-  if (start === 0 && end === buf.length) {
-    return base64.fromByteArray(buf)
-  } else {
-    return base64.fromByteArray(buf.slice(start, end))
-  }
-}
-
-function utf8Slice (buf, start, end) {
-  end = Math.min(buf.length, end)
-  var res = []
-
-  var i = start
-  while (i < end) {
-    var firstByte = buf[i]
-    var codePoint = null
-    var bytesPerSequence = (firstByte > 0xEF) ? 4
-      : (firstByte > 0xDF) ? 3
-      : (firstByte > 0xBF) ? 2
-      : 1
-
-    if (i + bytesPerSequence <= end) {
-      var secondByte, thirdByte, fourthByte, tempCodePoint
-
-      switch (bytesPerSequence) {
-        case 1:
-          if (firstByte < 0x80) {
-            codePoint = firstByte
-          }
-          break
-        case 2:
-          secondByte = buf[i + 1]
-          if ((secondByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
-            if (tempCodePoint > 0x7F) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 3:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
-            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
-              codePoint = tempCodePoint
-            }
-          }
-          break
-        case 4:
-          secondByte = buf[i + 1]
-          thirdByte = buf[i + 2]
-          fourthByte = buf[i + 3]
-          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
-            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
-            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
-              codePoint = tempCodePoint
-            }
-          }
-      }
-    }
-
-    if (codePoint === null) {
-      // we did not generate a valid codePoint so insert a
-      // replacement char (U+FFFD) and advance only 1 byte
-      codePoint = 0xFFFD
-      bytesPerSequence = 1
-    } else if (codePoint > 0xFFFF) {
-      // encode to utf16 (surrogate pair dance)
-      codePoint -= 0x10000
-      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
-      codePoint = 0xDC00 | codePoint & 0x3FF
-    }
-
-    res.push(codePoint)
-    i += bytesPerSequence
-  }
-
-  return decodeCodePointsArray(res)
-}
-
-// Based on http://stackoverflow.com/a/22747272/680742, the browser with
-// the lowest limit is Chrome, with 0x10000 args.
-// We go 1 magnitude less, for safety
-var MAX_ARGUMENTS_LENGTH = 0x1000
-
-function decodeCodePointsArray (codePoints) {
-  var len = codePoints.length
-  if (len <= MAX_ARGUMENTS_LENGTH) {
-    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
-  }
-
-  // Decode in chunks to avoid "call stack size exceeded".
-  var res = ''
-  var i = 0
-  while (i < len) {
-    res += String.fromCharCode.apply(
-      String,
-      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
-    )
-  }
-  return res
-}
-
-function asciiSlice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
-
-  for (var i = start; i < end; ++i) {
-    ret += String.fromCharCode(buf[i] & 0x7F)
-  }
-  return ret
-}
-
-function latin1Slice (buf, start, end) {
-  var ret = ''
-  end = Math.min(buf.length, end)
-
-  for (var i = start; i < end; ++i) {
-    ret += String.fromCharCode(buf[i])
-  }
-  return ret
-}
-
-function hexSlice (buf, start, end) {
-  var len = buf.length
-
-  if (!start || start < 0) start = 0
-  if (!end || end < 0 || end > len) end = len
-
-  var out = ''
-  for (var i = start; i < end; ++i) {
-    out += toHex(buf[i])
-  }
-  return out
-}
-
-function utf16leSlice (buf, start, end) {
-  var bytes = buf.slice(start, end)
-  var res = ''
-  for (var i = 0; i < bytes.length; i += 2) {
-    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
-  }
-  return res
-}
-
-Buffer.prototype.slice = function slice (start, end) {
-  var len = this.length
-  start = ~~start
-  end = end === undefined ? len : ~~end
-
-  if (start < 0) {
-    start += len
-    if (start < 0) start = 0
-  } else if (start > len) {
-    start = len
-  }
-
-  if (end < 0) {
-    end += len
-    if (end < 0) end = 0
-  } else if (end > len) {
-    end = len
-  }
-
-  if (end < start) end = start
-
-  var newBuf
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    newBuf = this.subarray(start, end)
-    newBuf.__proto__ = Buffer.prototype
-  } else {
-    var sliceLen = end - start
-    newBuf = new Buffer(sliceLen, undefined)
-    for (var i = 0; i < sliceLen; ++i) {
-      newBuf[i] = this[i + start]
-    }
-  }
-
-  return newBuf
-}
-
-/*
- * Need to make sure that buffer isn't trying to write out of bounds.
- */
-function checkOffset (offset, ext, length) {
-  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
-  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
-}
-
-Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
-
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
-  }
-
-  return val
-}
-
-Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) {
-    checkOffset(offset, byteLength, this.length)
-  }
-
-  var val = this[offset + --byteLength]
-  var mul = 1
-  while (byteLength > 0 && (mul *= 0x100)) {
-    val += this[offset + --byteLength] * mul
-  }
-
-  return val
-}
-
-Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  return this[offset]
-}
-
-Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return this[offset] | (this[offset + 1] << 8)
-}
-
-Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  return (this[offset] << 8) | this[offset + 1]
-}
-
-Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return ((this[offset]) |
-      (this[offset + 1] << 8) |
-      (this[offset + 2] << 16)) +
-      (this[offset + 3] * 0x1000000)
-}
-
-Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return (this[offset] * 0x1000000) +
-    ((this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    this[offset + 3])
-}
-
-Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
-
-  var val = this[offset]
-  var mul = 1
-  var i = 0
-  while (++i < byteLength && (mul *= 0x100)) {
-    val += this[offset + i] * mul
-  }
-  mul *= 0x80
-
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-
-  return val
-}
-
-Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) checkOffset(offset, byteLength, this.length)
-
-  var i = byteLength
-  var mul = 1
-  var val = this[offset + --i]
-  while (i > 0 && (mul *= 0x100)) {
-    val += this[offset + --i] * mul
-  }
-  mul *= 0x80
-
-  if (val >= mul) val -= Math.pow(2, 8 * byteLength)
-
-  return val
-}
-
-Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 1, this.length)
-  if (!(this[offset] & 0x80)) return (this[offset])
-  return ((0xff - this[offset] + 1) * -1)
-}
-
-Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset] | (this[offset + 1] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
-
-Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 2, this.length)
-  var val = this[offset + 1] | (this[offset] << 8)
-  return (val & 0x8000) ? val | 0xFFFF0000 : val
-}
-
-Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return (this[offset]) |
-    (this[offset + 1] << 8) |
-    (this[offset + 2] << 16) |
-    (this[offset + 3] << 24)
-}
-
-Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-
-  return (this[offset] << 24) |
-    (this[offset + 1] << 16) |
-    (this[offset + 2] << 8) |
-    (this[offset + 3])
-}
-
-Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, true, 23, 4)
-}
-
-Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 4, this.length)
-  return ieee754.read(this, offset, false, 23, 4)
-}
-
-Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, true, 52, 8)
-}
-
-Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
-  if (!noAssert) checkOffset(offset, 8, this.length)
-  return ieee754.read(this, offset, false, 52, 8)
-}
-
-function checkInt (buf, value, offset, ext, max, min) {
-  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
-  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
-  if (offset + ext > buf.length) throw new RangeError('Index out of range')
-}
-
-Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) {
-    var maxBytes = Math.pow(2, 8 * byteLength) - 1
-    checkInt(this, value, offset, byteLength, maxBytes, 0)
-  }
-
-  var mul = 1
-  var i = 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  byteLength = byteLength | 0
-  if (!noAssert) {
-    var maxBytes = Math.pow(2, 8 * byteLength) - 1
-    checkInt(this, value, offset, byteLength, maxBytes, 0)
-  }
-
-  var i = byteLength - 1
-  var mul = 1
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    this[offset + i] = (value / mul) & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
-  this[offset] = (value & 0xff)
-  return offset + 1
-}
-
-function objectWriteUInt16 (buf, value, offset, littleEndian) {
-  if (value < 0) value = 0xffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
-    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
-      (littleEndian ? i : 1 - i) * 8
-  }
-}
-
-Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value & 0xff)
-    this[offset + 1] = (value >>> 8)
-  } else {
-    objectWriteUInt16(this, value, offset, true)
-  }
-  return offset + 2
-}
-
-Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 8)
-    this[offset + 1] = (value & 0xff)
-  } else {
-    objectWriteUInt16(this, value, offset, false)
-  }
-  return offset + 2
-}
-
-function objectWriteUInt32 (buf, value, offset, littleEndian) {
-  if (value < 0) value = 0xffffffff + value + 1
-  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
-    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
-  }
-}
-
-Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset + 3] = (value >>> 24)
-    this[offset + 2] = (value >>> 16)
-    this[offset + 1] = (value >>> 8)
-    this[offset] = (value & 0xff)
-  } else {
-    objectWriteUInt32(this, value, offset, true)
-  }
-  return offset + 4
-}
-
-Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 24)
-    this[offset + 1] = (value >>> 16)
-    this[offset + 2] = (value >>> 8)
-    this[offset + 3] = (value & 0xff)
-  } else {
-    objectWriteUInt32(this, value, offset, false)
-  }
-  return offset + 4
-}
-
-Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) {
-    var limit = Math.pow(2, 8 * byteLength - 1)
-
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
-
-  var i = 0
-  var mul = 1
-  var sub = 0
-  this[offset] = value & 0xFF
-  while (++i < byteLength && (mul *= 0x100)) {
-    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
-      sub = 1
-    }
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) {
-    var limit = Math.pow(2, 8 * byteLength - 1)
-
-    checkInt(this, value, offset, byteLength, limit - 1, -limit)
-  }
-
-  var i = byteLength - 1
-  var mul = 1
-  var sub = 0
-  this[offset + i] = value & 0xFF
-  while (--i >= 0 && (mul *= 0x100)) {
-    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
-      sub = 1
-    }
-    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
-  }
-
-  return offset + byteLength
-}
-
-Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
-  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
-  if (value < 0) value = 0xff + value + 1
-  this[offset] = (value & 0xff)
-  return offset + 1
-}
-
-Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value & 0xff)
-    this[offset + 1] = (value >>> 8)
-  } else {
-    objectWriteUInt16(this, value, offset, true)
-  }
-  return offset + 2
-}
-
-Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 8)
-    this[offset + 1] = (value & 0xff)
-  } else {
-    objectWriteUInt16(this, value, offset, false)
-  }
-  return offset + 2
-}
-
-Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value & 0xff)
-    this[offset + 1] = (value >>> 8)
-    this[offset + 2] = (value >>> 16)
-    this[offset + 3] = (value >>> 24)
-  } else {
-    objectWriteUInt32(this, value, offset, true)
-  }
-  return offset + 4
-}
-
-Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
-  value = +value
-  offset = offset | 0
-  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
-  if (value < 0) value = 0xffffffff + value + 1
-  if (Buffer.TYPED_ARRAY_SUPPORT) {
-    this[offset] = (value >>> 24)
-    this[offset + 1] = (value >>> 16)
-    this[offset + 2] = (value >>> 8)
-    this[offset + 3] = (value & 0xff)
-  } else {
-    objectWriteUInt32(this, value, offset, false)
-  }
-  return offset + 4
-}
-
-function checkIEEE754 (buf, value, offset, ext, max, min) {
-  if (offset + ext > buf.length) throw new RangeError('Index out of range')
-  if (offset < 0) throw new RangeError('Index out of range')
-}
-
-function writeFloat (buf, value, offset, littleEndian, noAssert) {
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 23, 4)
-  return offset + 4
-}
-
-Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, true, noAssert)
-}
-
-Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
-  return writeFloat(this, value, offset, false, noAssert)
-}
-
-function writeDouble (buf, value, offset, littleEndian, noAssert) {
-  if (!noAssert) {
-    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
-  }
-  ieee754.write(buf, value, offset, littleEndian, 52, 8)
-  return offset + 8
-}
-
-Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, true, noAssert)
-}
-
-Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
-  return writeDouble(this, value, offset, false, noAssert)
-}
-
-// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
-Buffer.prototype.copy = function copy (target, targetStart, start, end) {
-  if (!start) start = 0
-  if (!end && end !== 0) end = this.length
-  if (targetStart >= target.length) targetStart = target.length
-  if (!targetStart) targetStart = 0
-  if (end > 0 && end < start) end = start
-
-  // Copy 0 bytes; we're done
-  if (end === start) return 0
-  if (target.length === 0 || this.length === 0) return 0
-
-  // Fatal error conditions
-  if (targetStart < 0) {
-    throw new RangeError('targetStart out of bounds')
-  }
-  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
-  if (end < 0) throw new RangeError('sourceEnd out of bounds')
-
-  // Are we oob?
-  if (end > this.length) end = this.length
-  if (target.length - targetStart < end - start) {
-    end = target.length - targetStart + start
-  }
-
-  var len = end - start
-  var i
-
-  if (this === target && start < targetStart && targetStart < end) {
-    // descending copy from end
-    for (i = len - 1; i >= 0; --i) {
-      target[i + targetStart] = this[i + start]
-    }
-  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
-    // ascending copy from start
-    for (i = 0; i < len; ++i) {
-      target[i + targetStart] = this[i + start]
-    }
-  } else {
-    Uint8Array.prototype.set.call(
-      target,
-      this.subarray(start, start + len),
-      targetStart
-    )
-  }
-
-  return len
-}
-
-// Usage:
-//    buffer.fill(number[, offset[, end]])
-//    buffer.fill(buffer[, offset[, end]])
-//    buffer.fill(string[, offset[, end]][, encoding])
-Buffer.prototype.fill = function fill (val, start, end, encoding) {
-  // Handle string cases:
-  if (typeof val === 'string') {
-    if (typeof start === 'string') {
-      encoding = start
-      start = 0
-      end = this.length
-    } else if (typeof end === 'string') {
-      encoding = end
-      end = this.length
-    }
-    if (val.length === 1) {
-      var code = val.charCodeAt(0)
-      if (code < 256) {
-        val = code
-      }
-    }
-    if (encoding !== undefined && typeof encoding !== 'string') {
-      throw new TypeError('encoding must be a string')
-    }
-    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
-      throw new TypeError('Unknown encoding: ' + encoding)
-    }
-  } else if (typeof val === 'number') {
-    val = val & 255
-  }
-
-  // Invalid ranges are not set to a default, so can range check early.
-  if (start < 0 || this.length < start || this.length < end) {
-    throw new RangeError('Out of range index')
-  }
-
-  if (end <= start) {
-    return this
-  }
-
-  start = start >>> 0
-  end = end === undefined ? this.length : end >>> 0
-
-  if (!val) val = 0
-
-  var i
-  if (typeof val === 'number') {
-    for (i = start; i < end; ++i) {
-      this[i] = val
-    }
-  } else {
-    var bytes = Buffer.isBuffer(val)
-      ? val
-      : utf8ToBytes(new Buffer(val, encoding).toString())
-    var len = bytes.length
-    for (i = 0; i < end - start; ++i) {
-      this[i + start] = bytes[i % len]
-    }
-  }
-
-  return this
-}
-
-// HELPER FUNCTIONS
-// ================
-
-var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
-
-function base64clean (str) {
-  // Node strips out invalid characters like \n and \t from the string, base64-js does not
-  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
-  // Node converts strings with length < 2 to ''
-  if (str.length < 2) return ''
-  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
-  while (str.length % 4 !== 0) {
-    str = str + '='
-  }
-  return str
-}
-
-function stringtrim (str) {
-  if (str.trim) return str.trim()
-  return str.replace(/^\s+|\s+$/g, '')
-}
-
-function toHex (n) {
-  if (n < 16) return '0' + n.toString(16)
-  return n.toString(16)
-}
-
-function utf8ToBytes (string, units) {
-  units = units || Infinity
-  var codePoint
-  var length = string.length
-  var leadSurrogate = null
-  var bytes = []
-
-  for (var i = 0; i < length; ++i) {
-    codePoint = string.charCodeAt(i)
-
-    // is surrogate component
-    if (codePoint > 0xD7FF && codePoint < 0xE000) {
-      // last char was a lead
-      if (!leadSurrogate) {
-        // no lead yet
-        if (codePoint > 0xDBFF) {
-          // unexpected trail
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-        } else if (i + 1 === length) {
-          // unpaired lead
-          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-          continue
-        }
-
-        // valid lead
-        leadSurrogate = codePoint
-
-        continue
-      }
-
-      // 2 leads in a row
-      if (codePoint < 0xDC00) {
-        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-        leadSurrogate = codePoint
-        continue
-      }
-
-      // valid surrogate pair
-      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
-    } else if (leadSurrogate) {
-      // valid bmp char, but last char was a lead
-      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
-    }
-
-    leadSurrogate = null
-
-    // encode utf8
-    if (codePoint < 0x80) {
-      if ((units -= 1) < 0) break
-      bytes.push(codePoint)
-    } else if (codePoint < 0x800) {
-      if ((units -= 2) < 0) break
-      bytes.push(
-        codePoint >> 0x6 | 0xC0,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x10000) {
-      if ((units -= 3) < 0) break
-      bytes.push(
-        codePoint >> 0xC | 0xE0,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
-    } else if (codePoint < 0x110000) {
-      if ((units -= 4) < 0) break
-      bytes.push(
-        codePoint >> 0x12 | 0xF0,
-        codePoint >> 0xC & 0x3F | 0x80,
-        codePoint >> 0x6 & 0x3F | 0x80,
-        codePoint & 0x3F | 0x80
-      )
-    } else {
-      throw new Error('Invalid code point')
-    }
-  }
-
-  return bytes
-}
-
-function asciiToBytes (str) {
-  var byteArray = []
-  for (var i = 0; i < str.length; ++i) {
-    // Node's code seems to be doing this and not & 0x7F..
-    byteArray.push(str.charCodeAt(i) & 0xFF)
-  }
-  return byteArray
-}
-
-function utf16leToBytes (str, units) {
-  var c, hi, lo
-  var byteArray = []
-  for (var i = 0; i < str.length; ++i) {
-    if ((units -= 2) < 0) break
-
-    c = str.charCodeAt(i)
-    hi = c >> 8
-    lo = c % 256
-    byteArray.push(lo)
-    byteArray.push(hi)
-  }
-
-  return byteArray
-}
-
-function base64ToBytes (str) {
-  return base64.toByteArray(base64clean(str))
-}
-
-function blitBuffer (src, dst, offset, length) {
-  for (var i = 0; i < length; ++i) {
-    if ((i + offset >= dst.length) || (i >= src.length)) break
-    dst[i + offset] = src[i]
-  }
-  return i
-}
-
-function isnan (val) {
-  return val !== val // eslint-disable-line no-self-compare
-}
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"base64-js":4,"ieee754":18,"isarray":9}],9:[function(_dereq_,module,exports){
-var toString = {}.toString;
-
-module.exports = Array.isArray || function (arr) {
-  return toString.call(arr) == '[object Array]';
-};
-
-},{}],10:[function(_dereq_,module,exports){
-
-/**
- * This is the web browser implementation of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = _dereq_('./debug');
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-exports.storage = 'undefined' != typeof chrome
-               && 'undefined' != typeof chrome.storage
-                  ? chrome.storage.local
-                  : localstorage();
-
-/**
- * Colors.
- */
-
-exports.colors = [
-  'lightseagreen',
-  'forestgreen',
-  'goldenrod',
-  'dodgerblue',
-  'darkorchid',
-  'crimson'
-];
-
-/**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
-
-function useColors() {
-  // is webkit? http://stackoverflow.com/a/16459606/376773
-  return ('WebkitAppearance' in document.documentElement.style) ||
-    // is firebug? http://stackoverflow.com/a/398120/376773
-    (window.console && (console.firebug || (console.exception && console.table))) ||
-    // is firefox >= v31?
-    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
-    (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
-}
-
-/**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
-
-exports.formatters.j = function(v) {
-  return JSON.stringify(v);
-};
-
-
-/**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
-
-function formatArgs() {
-  var args = arguments;
-  var useColors = this.useColors;
-
-  args[0] = (useColors ? '%c' : '')
-    + this.namespace
-    + (useColors ? ' %c' : ' ')
-    + args[0]
-    + (useColors ? '%c ' : ' ');
-
-  if (!useColors) return args;
-
-  var c = 'color: ' + this.color;
-  args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));
-
-  // the final "%c" is somewhat tricky, because there could be other
-  // arguments passed either before or after the %c, so we need to
-  // figure out the correct index to insert the CSS into
-  var index = 0;
-  var lastC = 0;
-  args[0].replace(/%[a-z%]/g, function(match) {
-    if ('%%' === match) return;
-    index++;
-    if ('%c' === match) {
-      // we only are interested in the *last* %c
-      // (the user may have provided their own)
-      lastC = index;
-    }
-  });
-
-  args.splice(lastC, 0, c);
-  return args;
-}
-
-/**
- * Invokes `console.log()` when available.
- * No-op when `console.log` is not a "function".
- *
- * @api public
- */
-
-function log() {
-  // this hackery is required for IE8/9, where
-  // the `console.log` function doesn't have 'apply'
-  return 'object' === typeof console
-    && console.log
-    && Function.prototype.apply.call(console.log, console, arguments);
-}
-
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-function save(namespaces) {
-  try {
-    if (null == namespaces) {
-      exports.storage.removeItem('debug');
-    } else {
-      exports.storage.debug = namespaces;
-    }
-  } catch(e) {}
-}
-
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-function load() {
-  var r;
-  try {
-    r = exports.storage.debug;
-  } catch(e) {}
-  return r;
-}
-
-/**
- * Enable namespaces listed in `localStorage.debug` initially.
- */
-
-exports.enable(load());
-
-/**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
-
-function localstorage(){
-  try {
-    return window.localStorage;
-  } catch (e) {}
-}
-
-},{"./debug":11}],11:[function(_dereq_,module,exports){
-
-/**
- * This is the common logic for both the Node.js and web browser
- * implementations of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = debug;
-exports.coerce = coerce;
-exports.disable = disable;
-exports.enable = enable;
-exports.enabled = enabled;
-
-/**
- * The currently active debug mode names, and names to skip.
- */
-
-exports.names = [];
-exports.skips = [];
-
-/**
- * Map of special "%n" handling functions, for the debug "format" argument.
- *
- * Valid key names are a single, lowercased letter, i.e. "n".
- */
-
-exports.formatters = {};
-
-/**
- * Previously assigned color.
- */
-
-var prevColor = 0;
-
-/**
- * Select a color.
- *
- * @return {Number}
- * @api private
- */
-
-function selectColor() {
-  return exports.colors[prevColor++ % exports.colors.length];
-}
-
-/**
- * Create a debugger with the given `namespace`.
- *
- * @param {String} namespace
- * @return {Function}
- * @api public
- */
-
-function debug(namespace) {
-
-  // define the `disabled` version
-  function disabled() {
-  }
-  disabled.enabled = false;
-
-  // define the `enabled` version
-  function enabled() {
-
-    var self = enabled;
-
-    // add the `color` if not set
-    if (null == self.useColors) self.useColors = exports.useColors();
-    if (null == self.color && self.useColors) self.color = selectColor();
-
-    var args = Array.prototype.slice.call(arguments);
-
-    args[0] = exports.coerce(args[0]);
-
-    if ('string' !== typeof args[0]) {
-      // anything else let's inspect with %o
-      args = ['%o'].concat(args);
-    }
-
-    // apply any `formatters` transformations
-    var index = 0;
-    args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
-      // if we encounter an escaped % then don't increase the array index
-      if (match === '%%') return match;
-      index++;
-      var formatter = exports.formatters[format];
-      if ('function' === typeof formatter) {
-        var val = args[index];
-        match = formatter.call(self, val);
-
-        // now we need to remove `args[index]` since it's inlined in the `format`
-        args.splice(index, 1);
-        index--;
-      }
-      return match;
-    });
-
-    if ('function' === typeof exports.formatArgs) {
-      args = exports.formatArgs.apply(self, args);
-    }
-    var logFn = enabled.log || exports.log || console.log.bind(console);
-    logFn.apply(self, args);
-  }
-  enabled.enabled = true;
-
-  var fn = exports.enabled(namespace) ? enabled : disabled;
-
-  fn.namespace = namespace;
-
-  return fn;
-}
-
-/**
- * Enables a debug mode by namespaces. This can include modes
- * separated by a colon and wildcards.
- *
- * @param {String} namespaces
- * @api public
- */
-
-function enable(namespaces) {
-  exports.save(namespaces);
-
-  var split = (namespaces || '').split(/[\s,]+/);
-  var len = split.length;
-
-  for (var i = 0; i < len; i++) {
-    if (!split[i]) continue; // ignore empty strings
-    namespaces = split[i].replace(/\*/g, '.*?');
-    if (namespaces[0] === '-') {
-      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
-    } else {
-      exports.names.push(new RegExp('^' + namespaces + '$'));
-    }
-  }
-}
-
-/**
- * Disable debug output.
- *
- * @api public
- */
-
-function disable() {
-  exports.enable('');
-}
-
-/**
- * Returns true if the given mode name is enabled, false otherwise.
- *
- * @param {String} name
- * @return {Boolean}
- * @api public
- */
-
-function enabled(name) {
-  var i, len;
-  for (i = 0, len = exports.skips.length; i < len; i++) {
-    if (exports.skips[i].test(name)) {
-      return false;
-    }
-  }
-  for (i = 0, len = exports.names.length; i < len; i++) {
-    if (exports.names[i].test(name)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * Coerce `val`.
- *
- * @param {Mixed} val
- * @return {Mixed}
- * @api private
- */
-
-function coerce(val) {
-  if (val instanceof Error) return val.stack || val.message;
-  return val;
-}
-
-},{}],12:[function(_dereq_,module,exports){
-'use strict';
-var isObj = _dereq_('is-obj');
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-var propIsEnumerable = Object.prototype.propertyIsEnumerable;
-
-function toObject(val) {
-	if (val === null || val === undefined) {
-		throw new TypeError('Sources cannot be null or undefined');
-	}
-
-	return Object(val);
-}
-
-function assignKey(to, from, key) {
-	var val = from[key];
-
-	if (val === undefined || val === null) {
-		return;
-	}
-
-	if (hasOwnProperty.call(to, key)) {
-		if (to[key] === undefined || to[key] === null) {
-			throw new TypeError('Cannot convert undefined or null to object (' + key + ')');
-		}
-	}
-
-	if (!hasOwnProperty.call(to, key) || !isObj(val)) {
-		to[key] = val;
-	} else {
-		to[key] = assign(Object(to[key]), from[key]);
-	}
-}
-
-function assign(to, from) {
-	if (to === from) {
-		return to;
-	}
-
-	from = Object(from);
-
-	for (var key in from) {
-		if (hasOwnProperty.call(from, key)) {
-			assignKey(to, from, key);
-		}
-	}
-
-	if (Object.getOwnPropertySymbols) {
-		var symbols = Object.getOwnPropertySymbols(from);
-
-		for (var i = 0; i < symbols.length; i++) {
-			if (propIsEnumerable.call(from, symbols[i])) {
-				assignKey(to, from, symbols[i]);
-			}
-		}
-	}
-
-	return to;
-}
-
-module.exports = function deepAssign(target) {
-	target = toObject(target);
-
-	for (var s = 1; s < arguments.length; s++) {
-		assign(target, arguments[s]);
-	}
-
-	return target;
-};
-
-},{"is-obj":22}],13:[function(_dereq_,module,exports){
-/*! (C) WebReflection Mit Style License */
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-},{}],14:[function(_dereq_,module,exports){
-module.exports = function(dtype) {
-  switch (dtype) {
-    case 'int8':
-      return Int8Array
-    case 'int16':
-      return Int16Array
-    case 'int32':
-      return Int32Array
-    case 'uint8':
-      return Uint8Array
-    case 'uint16':
-      return Uint16Array
-    case 'uint32':
-      return Uint32Array
-    case 'float32':
-      return Float32Array
-    case 'float64':
-      return Float64Array
-    case 'array':
-      return Array
-    case 'uint8_clamped':
-      return Uint8ClampedArray
-  }
-}
-
-},{}],15:[function(_dereq_,module,exports){
-/*eslint new-cap:0*/
-var dtype = _dereq_('dtype')
-module.exports = flattenVertexData
-function flattenVertexData (data, output, offset) {
-  if (!data) throw new TypeError('must specify data as first parameter')
-  offset = +(offset || 0) | 0
-
-  if (Array.isArray(data) && Array.isArray(data[0])) {
-    var dim = data[0].length
-    var length = data.length * dim
-
-    // no output specified, create a new typed array
-    if (!output || typeof output === 'string') {
-      output = new (dtype(output || 'float32'))(length + offset)
-    }
-
-    var dstLength = output.length - offset
-    if (length !== dstLength) {
-      throw new Error('source length ' + length + ' (' + dim + 'x' + data.length + ')' +
-        ' does not match destination length ' + dstLength)
-    }
-
-    for (var i = 0, k = offset; i < data.length; i++) {
-      for (var j = 0; j < dim; j++) {
-        output[k++] = data[i][j]
-      }
-    }
-  } else {
-    if (!output || typeof output === 'string') {
-      // no output, create a new one
-      var Ctor = dtype(output || 'float32')
-      if (offset === 0) {
-        output = new Ctor(data)
-      } else {
-        output = new Ctor(data.length + offset)
-        output.set(data, offset)
-      }
-    } else {
-      // store output in existing array
-      output.set(data, offset)
-    }
-  }
-
-  return output
-}
-
-},{"dtype":14}],16:[function(_dereq_,module,exports){
-var isFunction = _dereq_('is-function')
-
-module.exports = forEach
-
-var toString = Object.prototype.toString
-var hasOwnProperty = Object.prototype.hasOwnProperty
-
-function forEach(list, iterator, context) {
-    if (!isFunction(iterator)) {
-        throw new TypeError('iterator must be a function')
-    }
-
-    if (arguments.length < 3) {
-        context = this
-    }
-    
-    if (toString.call(list) === '[object Array]')
-        forEachArray(list, iterator, context)
-    else if (typeof list === 'string')
-        forEachString(list, iterator, context)
-    else
-        forEachObject(list, iterator, context)
-}
-
-function forEachArray(array, iterator, context) {
-    for (var i = 0, len = array.length; i < len; i++) {
-        if (hasOwnProperty.call(array, i)) {
-            iterator.call(context, array[i], i, array)
-        }
-    }
-}
-
-function forEachString(string, iterator, context) {
-    for (var i = 0, len = string.length; i < len; i++) {
-        // no such thing as a sparse string.
-        iterator.call(context, string.charAt(i), i, string)
-    }
-}
-
-function forEachObject(object, iterator, context) {
-    for (var k in object) {
-        if (hasOwnProperty.call(object, k)) {
-            iterator.call(context, object[k], k, object)
-        }
-    }
-}
-
-},{"is-function":21}],17:[function(_dereq_,module,exports){
-(function (global){
-var win;
-
-if (typeof window !== "undefined") {
-    win = window;
-} else if (typeof global !== "undefined") {
-    win = global;
-} else if (typeof self !== "undefined"){
-    win = self;
-} else {
-    win = {};
-}
-
-module.exports = win;
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],18:[function(_dereq_,module,exports){
-exports.read = function (buffer, offset, isLE, mLen, nBytes) {
-  var e, m
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var nBits = -7
-  var i = isLE ? (nBytes - 1) : 0
-  var d = isLE ? -1 : 1
-  var s = buffer[offset + i]
-
-  i += d
-
-  e = s & ((1 << (-nBits)) - 1)
-  s >>= (-nBits)
-  nBits += eLen
-  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
-
-  m = e & ((1 << (-nBits)) - 1)
-  e >>= (-nBits)
-  nBits += mLen
-  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
-
-  if (e === 0) {
-    e = 1 - eBias
-  } else if (e === eMax) {
-    return m ? NaN : ((s ? -1 : 1) * Infinity)
-  } else {
-    m = m + Math.pow(2, mLen)
-    e = e - eBias
-  }
-  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
-}
-
-exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
-  var e, m, c
-  var eLen = nBytes * 8 - mLen - 1
-  var eMax = (1 << eLen) - 1
-  var eBias = eMax >> 1
-  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
-  var i = isLE ? 0 : (nBytes - 1)
-  var d = isLE ? 1 : -1
-  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
-
-  value = Math.abs(value)
-
-  if (isNaN(value) || value === Infinity) {
-    m = isNaN(value) ? 1 : 0
-    e = eMax
-  } else {
-    e = Math.floor(Math.log(value) / Math.LN2)
-    if (value * (c = Math.pow(2, -e)) < 1) {
-      e--
-      c *= 2
-    }
-    if (e + eBias >= 1) {
-      value += rt / c
-    } else {
-      value += rt * Math.pow(2, 1 - eBias)
-    }
-    if (value * c >= 2) {
-      e++
-      c /= 2
-    }
-
-    if (e + eBias >= eMax) {
-      m = 0
-      e = eMax
-    } else if (e + eBias >= 1) {
-      m = (value * c - 1) * Math.pow(2, mLen)
-      e = e + eBias
-    } else {
-      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
-      e = 0
-    }
-  }
-
-  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
-
-  e = (e << mLen) | m
-  eLen += mLen
-  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
-
-  buffer[offset + i - d] |= s * 128
-}
-
-},{}],19:[function(_dereq_,module,exports){
-if (typeof Object.create === 'function') {
-  // implementation from standard node.js 'util' module
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    ctor.prototype = Object.create(superCtor.prototype, {
-      constructor: {
-        value: ctor,
-        enumerable: false,
-        writable: true,
-        configurable: true
-      }
-    });
-  };
-} else {
-  // old school shim for old browsers
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    var TempCtor = function () {}
-    TempCtor.prototype = superCtor.prototype
-    ctor.prototype = new TempCtor()
-    ctor.prototype.constructor = ctor
-  }
-}
-
-},{}],20:[function(_dereq_,module,exports){
-/*!
- * Determine if an object is a Buffer
- *
- * @author   Feross Aboukhadijeh <https://feross.org>
- * @license  MIT
- */
-
-// The _isBuffer check is for Safari 5-7 support, because it's missing
-// Object.prototype.constructor. Remove this eventually
-module.exports = function (obj) {
-  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
-}
-
-function isBuffer (obj) {
-  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
-}
-
-// For Node v0.10 support. Remove this eventually.
-function isSlowBuffer (obj) {
-  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
-}
-
-},{}],21:[function(_dereq_,module,exports){
-module.exports = isFunction
-
-var toString = Object.prototype.toString
-
-function isFunction (fn) {
-  var string = toString.call(fn)
-  return string === '[object Function]' ||
-    (typeof fn === 'function' && string !== '[object RegExp]') ||
-    (typeof window !== 'undefined' &&
-     // IE8 and below
-     (fn === window.setTimeout ||
-      fn === window.alert ||
-      fn === window.confirm ||
-      fn === window.prompt))
-};
-
-},{}],22:[function(_dereq_,module,exports){
-'use strict';
-module.exports = function (x) {
-	var type = typeof x;
-	return x !== null && (type === 'object' || type === 'function');
-};
-
-},{}],23:[function(_dereq_,module,exports){
-var wordWrap = _dereq_('word-wrapper')
-var xtend = _dereq_('xtend')
-var number = _dereq_('as-number')
-
-var X_HEIGHTS = ['x', 'e', 'a', 'o', 'n', 's', 'r', 'c', 'u', 'm', 'v', 'w', 'z']
-var M_WIDTHS = ['m', 'w']
-var CAP_HEIGHTS = ['H', 'I', 'N', 'E', 'F', 'K', 'L', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z']
-
-
-var TAB_ID = '\t'.charCodeAt(0)
-var SPACE_ID = ' '.charCodeAt(0)
-var ALIGN_LEFT = 0, 
-    ALIGN_CENTER = 1, 
-    ALIGN_RIGHT = 2
-
-module.exports = function createLayout(opt) {
-  return new TextLayout(opt)
-}
-
-function TextLayout(opt) {
-  this.glyphs = []
-  this._measure = this.computeMetrics.bind(this)
-  this.update(opt)
-}
-
-TextLayout.prototype.update = function(opt) {
-  opt = xtend({
-    measure: this._measure
-  }, opt)
-  this._opt = opt
-  this._opt.tabSize = number(this._opt.tabSize, 4)
-
-  if (!opt.font)
-    throw new Error('must provide a valid bitmap font')
-
-  var glyphs = this.glyphs
-  var text = opt.text||'' 
-  var font = opt.font
-  this._setupSpaceGlyphs(font)
-  
-  var lines = wordWrap.lines(text, opt)
-  var minWidth = opt.width || 0
-
-  //clear glyphs
-  glyphs.length = 0
-
-  //get max line width
-  var maxLineWidth = lines.reduce(function(prev, line) {
-    return Math.max(prev, line.width, minWidth)
-  }, 0)
-
-  //the pen position
-  var x = 0
-  var y = 0
-  var lineHeight = number(opt.lineHeight, font.common.lineHeight)
-  var baseline = font.common.base
-  var descender = lineHeight-baseline
-  var letterSpacing = opt.letterSpacing || 0
-  var height = lineHeight * lines.length - descender
-  var align = getAlignType(this._opt.align)
-
-  //draw text along baseline
-  y -= height
-  
-  //the metrics for this text layout
-  this._width = maxLineWidth
-  this._height = height
-  this._descender = lineHeight - baseline
-  this._baseline = baseline
-  this._xHeight = getXHeight(font)
-  this._capHeight = getCapHeight(font)
-  this._lineHeight = lineHeight
-  this._ascender = lineHeight - descender - this._xHeight
-    
-  //layout each glyph
-  var self = this
-  lines.forEach(function(line, lineIndex) {
-    var start = line.start
-    var end = line.end
-    var lineWidth = line.width
-    var lastGlyph
-    
-    //for each glyph in that line...
-    for (var i=start; i<end; i++) {
-      var id = text.charCodeAt(i)
-      var glyph = self.getGlyph(font, id)
-      if (glyph) {
-        if (lastGlyph) 
-          x += getKerning(font, lastGlyph.id, glyph.id)
-
-        var tx = x
-        if (align === ALIGN_CENTER) 
-          tx += (maxLineWidth-lineWidth)/2
-        else if (align === ALIGN_RIGHT)
-          tx += (maxLineWidth-lineWidth)
-
-        glyphs.push({
-          position: [tx, y],
-          data: glyph,
-          index: i,
-          line: lineIndex
-        })  
-
-        //move pen forward
-        x += glyph.xadvance + letterSpacing
-        lastGlyph = glyph
-      }
-    }
-
-    //next line down
-    y += lineHeight
-    x = 0
-  })
-  this._linesTotal = lines.length;
-}
-
-TextLayout.prototype._setupSpaceGlyphs = function(font) {
-  //These are fallbacks, when the font doesn't include
-  //' ' or '\t' glyphs
-  this._fallbackSpaceGlyph = null
-  this._fallbackTabGlyph = null
-
-  if (!font.chars || font.chars.length === 0)
-    return
-
-  //try to get space glyph
-  //then fall back to the 'm' or 'w' glyphs
-  //then fall back to the first glyph available
-  var space = getGlyphById(font, SPACE_ID) 
-          || getMGlyph(font) 
-          || font.chars[0]
-
-  //and create a fallback for tab
-  var tabWidth = this._opt.tabSize * space.xadvance
-  this._fallbackSpaceGlyph = space
-  this._fallbackTabGlyph = xtend(space, {
-    x: 0, y: 0, xadvance: tabWidth, id: TAB_ID, 
-    xoffset: 0, yoffset: 0, width: 0, height: 0
-  })
-}
-
-TextLayout.prototype.getGlyph = function(font, id) {
-  var glyph = getGlyphById(font, id)
-  if (glyph)
-    return glyph
-  else if (id === TAB_ID) 
-    return this._fallbackTabGlyph
-  else if (id === SPACE_ID) 
-    return this._fallbackSpaceGlyph
-  return null
-}
-
-TextLayout.prototype.computeMetrics = function(text, start, end, width) {
-  var letterSpacing = this._opt.letterSpacing || 0
-  var font = this._opt.font
-  var curPen = 0
-  var curWidth = 0
-  var count = 0
-  var glyph
-  var lastGlyph
-
-  if (!font.chars || font.chars.length === 0) {
-    return {
-      start: start,
-      end: start,
-      width: 0
-    }
-  }
-
-  end = Math.min(text.length, end)
-  for (var i=start; i < end; i++) {
-    var id = text.charCodeAt(i)
-    var glyph = this.getGlyph(font, id)
-
-    if (glyph) {
-      //move pen forward
-      var xoff = glyph.xoffset
-      var kern = lastGlyph ? getKerning(font, lastGlyph.id, glyph.id) : 0
-      curPen += kern
-
-      var nextPen = curPen + glyph.xadvance + letterSpacing
-      var nextWidth = curPen + glyph.width
-
-      //we've hit our limit; we can't move onto the next glyph
-      if (nextWidth >= width || nextPen >= width)
-        break
-
-      //otherwise continue along our line
-      curPen = nextPen
-      curWidth = nextWidth
-      lastGlyph = glyph
-    }
-    count++
-  }
-  
-  //make sure rightmost edge lines up with rendered glyphs
-  if (lastGlyph)
-    curWidth += lastGlyph.xoffset
-
-  return {
-    start: start,
-    end: start + count,
-    width: curWidth
-  }
-}
-
-//getters for the private vars
-;['width', 'height', 
-  'descender', 'ascender',
-  'xHeight', 'baseline',
-  'capHeight',
-  'lineHeight' ].forEach(addGetter)
-
-function addGetter(name) {
-  Object.defineProperty(TextLayout.prototype, name, {
-    get: wrapper(name),
-    configurable: true
-  })
-}
-
-//create lookups for private vars
-function wrapper(name) {
-  return (new Function([
-    'return function '+name+'() {',
-    '  return this._'+name,
-    '}'
-  ].join('\n')))()
-}
-
-function getGlyphById(font, id) {
-  if (!font.chars || font.chars.length === 0)
-    return null
-
-  var glyphIdx = findChar(font.chars, id)
-  if (glyphIdx >= 0)
-    return font.chars[glyphIdx]
-  return null
-}
-
-function getXHeight(font) {
-  for (var i=0; i<X_HEIGHTS.length; i++) {
-    var id = X_HEIGHTS[i].charCodeAt(0)
-    var idx = findChar(font.chars, id)
-    if (idx >= 0) 
-      return font.chars[idx].height
-  }
-  return 0
-}
-
-function getMGlyph(font) {
-  for (var i=0; i<M_WIDTHS.length; i++) {
-    var id = M_WIDTHS[i].charCodeAt(0)
-    var idx = findChar(font.chars, id)
-    if (idx >= 0) 
-      return font.chars[idx]
-  }
-  return 0
-}
-
-function getCapHeight(font) {
-  for (var i=0; i<CAP_HEIGHTS.length; i++) {
-    var id = CAP_HEIGHTS[i].charCodeAt(0)
-    var idx = findChar(font.chars, id)
-    if (idx >= 0) 
-      return font.chars[idx].height
-  }
-  return 0
-}
-
-function getKerning(font, left, right) {
-  if (!font.kernings || font.kernings.length === 0)
-    return 0
-
-  var table = font.kernings
-  for (var i=0; i<table.length; i++) {
-    var kern = table[i]
-    if (kern.first === left && kern.second === right)
-      return kern.amount
-  }
-  return 0
-}
-
-function getAlignType(align) {
-  if (align === 'center')
-    return ALIGN_CENTER
-  else if (align === 'right')
-    return ALIGN_RIGHT
-  return ALIGN_LEFT
-}
-
-function findChar (array, value, start) {
-  start = start || 0
-  for (var i = start; i < array.length; i++) {
-    if (array[i].id === value) {
-      return i
-    }
-  }
-  return -1
-}
-},{"as-number":3,"word-wrapper":71,"xtend":74}],24:[function(_dereq_,module,exports){
-(function (Buffer){
-var xhr = _dereq_('xhr')
-var noop = function(){}
-var parseASCII = _dereq_('parse-bmfont-ascii')
-var parseXML = _dereq_('parse-bmfont-xml')
-var readBinary = _dereq_('parse-bmfont-binary')
-var isBinaryFormat = _dereq_('./lib/is-binary')
-var xtend = _dereq_('xtend')
-
-var xml2 = (function hasXML2() {
-  return self.XMLHttpRequest && "withCredentials" in new XMLHttpRequest
-})()
-
-module.exports = function(opt, cb) {
-  cb = typeof cb === 'function' ? cb : noop
-
-  if (typeof opt === 'string')
-    opt = { uri: opt }
-  else if (!opt)
-    opt = {}
-
-  var expectBinary = opt.binary
-  if (expectBinary)
-    opt = getBinaryOpts(opt)
-
-  xhr(opt, function(err, res, body) {
-    if (err)
-      return cb(err)
-    if (!/^2/.test(res.statusCode))
-      return cb(new Error('http status code: '+res.statusCode))
-    if (!body)
-      return cb(new Error('no body result'))
-
-    var binary = false 
-
-    //if the response type is an array buffer,
-    //we need to convert it into a regular Buffer object
-    if (isArrayBuffer(body)) {
-      var array = new Uint8Array(body)
-      body = new Buffer(array, 'binary')
-    }
-
-    //now check the string/Buffer response
-    //and see if it has a binary BMF header
-    if (isBinaryFormat(body)) {
-      binary = true
-      //if we have a string, turn it into a Buffer
-      if (typeof body === 'string') 
-        body = new Buffer(body, 'binary')
-    } 
-
-    //we are not parsing a binary format, just ASCII/XML/etc
-    if (!binary) {
-      //might still be a buffer if responseType is 'arraybuffer'
-      if (Buffer.isBuffer(body))
-        body = body.toString(opt.encoding)
-      body = body.trim()
-    }
-
-    var result
-    try {
-      var type = res.headers['content-type']
-      if (binary)
-        result = readBinary(body)
-      else if (/json/.test(type) || body.charAt(0) === '{')
-        result = JSON.parse(body)
-      else if (/xml/.test(type)  || body.charAt(0) === '<')
-        result = parseXML(body)
-      else
-        result = parseASCII(body)
-    } catch (e) {
-      cb(new Error('error parsing font '+e.message))
-      cb = noop
-    }
-    cb(null, result)
-  })
-}
-
-function isArrayBuffer(arr) {
-  var str = Object.prototype.toString
-  return str.call(arr) === '[object ArrayBuffer]'
-}
-
-function getBinaryOpts(opt) {
-  //IE10+ and other modern browsers support array buffers
-  if (xml2)
-    return xtend(opt, { responseType: 'arraybuffer' })
-  
-  if (typeof self.XMLHttpRequest === 'undefined')
-    throw new Error('your browser does not support XHR loading')
-
-  //IE9 and XML1 browsers could still use an override
-  var req = new self.XMLHttpRequest()
-  req.overrideMimeType('text/plain; charset=x-user-defined')
-  return xtend({
-    xhr: req
-  }, opt)
-}
-
-}).call(this,_dereq_("buffer").Buffer)
-
-},{"./lib/is-binary":25,"buffer":8,"parse-bmfont-ascii":27,"parse-bmfont-binary":28,"parse-bmfont-xml":29,"xhr":72,"xtend":74}],25:[function(_dereq_,module,exports){
-(function (Buffer){
-var equal = _dereq_('buffer-equal')
-var HEADER = new Buffer([66, 77, 70, 3])
-
-module.exports = function(buf) {
-  if (typeof buf === 'string')
-    return buf.substring(0, 3) === 'BMF'
-  return buf.length > 4 && equal(buf.slice(0, 4), HEADER)
-}
-}).call(this,_dereq_("buffer").Buffer)
-
-},{"buffer":8,"buffer-equal":7}],26:[function(_dereq_,module,exports){
-/*
-object-assign
-(c) Sindre Sorhus
-@license MIT
-*/
-
-'use strict';
-/* eslint-disable no-unused-vars */
-var getOwnPropertySymbols = Object.getOwnPropertySymbols;
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-var propIsEnumerable = Object.prototype.propertyIsEnumerable;
-
-function toObject(val) {
-	if (val === null || val === undefined) {
-		throw new TypeError('Object.assign cannot be called with null or undefined');
-	}
-
-	return Object(val);
-}
-
-function shouldUseNative() {
-	try {
-		if (!Object.assign) {
-			return false;
-		}
-
-		// Detect buggy property enumeration order in older V8 versions.
-
-		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
-		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
-		test1[5] = 'de';
-		if (Object.getOwnPropertyNames(test1)[0] === '5') {
-			return false;
-		}
-
-		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
-		var test2 = {};
-		for (var i = 0; i < 10; i++) {
-			test2['_' + String.fromCharCode(i)] = i;
-		}
-		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
-			return test2[n];
-		});
-		if (order2.join('') !== '0123456789') {
-			return false;
-		}
-
-		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
-		var test3 = {};
-		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
-			test3[letter] = letter;
-		});
-		if (Object.keys(Object.assign({}, test3)).join('') !==
-				'abcdefghijklmnopqrst') {
-			return false;
-		}
-
-		return true;
-	} catch (err) {
-		// We don't expect any of the above to throw, but better to be safe.
-		return false;
-	}
-}
-
-module.exports = shouldUseNative() ? Object.assign : function (target, source) {
-	var from;
-	var to = toObject(target);
-	var symbols;
-
-	for (var s = 1; s < arguments.length; s++) {
-		from = Object(arguments[s]);
-
-		for (var key in from) {
-			if (hasOwnProperty.call(from, key)) {
-				to[key] = from[key];
-			}
-		}
-
-		if (getOwnPropertySymbols) {
-			symbols = getOwnPropertySymbols(from);
-			for (var i = 0; i < symbols.length; i++) {
-				if (propIsEnumerable.call(from, symbols[i])) {
-					to[symbols[i]] = from[symbols[i]];
-				}
-			}
-		}
-	}
-
-	return to;
-};
-
-},{}],27:[function(_dereq_,module,exports){
-module.exports = function parseBMFontAscii(data) {
-  if (!data)
-    throw new Error('no data provided')
-  data = data.toString().trim()
-
-  var output = {
-    pages: [],
-    chars: [],
-    kernings: []
-  }
-
-  var lines = data.split(/\r\n?|\n/g)
-
-  if (lines.length === 0)
-    throw new Error('no data in BMFont file')
-
-  for (var i = 0; i < lines.length; i++) {
-    var lineData = splitLine(lines[i], i)
-    if (!lineData) //skip empty lines
-      continue
-
-    if (lineData.key === 'page') {
-      if (typeof lineData.data.id !== 'number')
-        throw new Error('malformed file at line ' + i + ' -- needs page id=N')
-      if (typeof lineData.data.file !== 'string')
-        throw new Error('malformed file at line ' + i + ' -- needs page file="path"')
-      output.pages[lineData.data.id] = lineData.data.file
-    } else if (lineData.key === 'chars' || lineData.key === 'kernings') {
-      //... do nothing for these two ...
-    } else if (lineData.key === 'char') {
-      output.chars.push(lineData.data)
-    } else if (lineData.key === 'kerning') {
-      output.kernings.push(lineData.data)
-    } else {
-      output[lineData.key] = lineData.data
-    }
-  }
-
-  return output
-}
-
-function splitLine(line, idx) {
-  line = line.replace(/\t+/g, ' ').trim()
-  if (!line)
-    return null
-
-  var space = line.indexOf(' ')
-  if (space === -1) 
-    throw new Error("no named row at line " + idx)
-
-  var key = line.substring(0, space)
-
-  line = line.substring(space + 1)
-  //clear "letter" field as it is non-standard and
-  //requires additional complexity to parse " / = symbols
-  line = line.replace(/letter=[\'\"]\S+[\'\"]/gi, '')  
-  line = line.split("=")
-  line = line.map(function(str) {
-    return str.trim().match((/(".*?"|[^"\s]+)+(?=\s*|\s*$)/g))
-  })
-
-  var data = []
-  for (var i = 0; i < line.length; i++) {
-    var dt = line[i]
-    if (i === 0) {
-      data.push({
-        key: dt[0],
-        data: ""
-      })
-    } else if (i === line.length - 1) {
-      data[data.length - 1].data = parseData(dt[0])
-    } else {
-      data[data.length - 1].data = parseData(dt[0])
-      data.push({
-        key: dt[1],
-        data: ""
-      })
-    }
-  }
-
-  var out = {
-    key: key,
-    data: {}
-  }
-
-  data.forEach(function(v) {
-    out.data[v.key] = v.data;
-  })
-
-  return out
-}
-
-function parseData(data) {
-  if (!data || data.length === 0)
-    return ""
-
-  if (data.indexOf('"') === 0 || data.indexOf("'") === 0)
-    return data.substring(1, data.length - 1)
-  if (data.indexOf(',') !== -1)
-    return parseIntList(data)
-  return parseInt(data, 10)
-}
-
-function parseIntList(data) {
-  return data.split(',').map(function(val) {
-    return parseInt(val, 10)
-  })
-}
-},{}],28:[function(_dereq_,module,exports){
-var HEADER = [66, 77, 70]
-
-module.exports = function readBMFontBinary(buf) {
-  if (buf.length < 6)
-    throw new Error('invalid buffer length for BMFont')
-
-  var header = HEADER.every(function(byte, i) {
-    return buf.readUInt8(i) === byte
-  })
-
-  if (!header)
-    throw new Error('BMFont missing BMF byte header')
-
-  var i = 3
-  var vers = buf.readUInt8(i++)
-  if (vers > 3)
-    throw new Error('Only supports BMFont Binary v3 (BMFont App v1.10)')
-  
-  var target = { kernings: [], chars: [] }
-  for (var b=0; b<5; b++)
-    i += readBlock(target, buf, i)
-  return target
-}
-
-function readBlock(target, buf, i) {
-  if (i > buf.length-1)
-    return 0
-
-  var blockID = buf.readUInt8(i++)
-  var blockSize = buf.readInt32LE(i)
-  i += 4
-
-  switch(blockID) {
-    case 1: 
-      target.info = readInfo(buf, i)
-      break
-    case 2:
-      target.common = readCommon(buf, i)
-      break
-    case 3:
-      target.pages = readPages(buf, i, blockSize)
-      break
-    case 4:
-      target.chars = readChars(buf, i, blockSize)
-      break
-    case 5:
-      target.kernings = readKernings(buf, i, blockSize)
-      break
-  }
-  return 5 + blockSize
-}
-
-function readInfo(buf, i) {
-  var info = {}
-  info.size = buf.readInt16LE(i)
-
-  var bitField = buf.readUInt8(i+2)
-  info.smooth = (bitField >> 7) & 1
-  info.unicode = (bitField >> 6) & 1
-  info.italic = (bitField >> 5) & 1
-  info.bold = (bitField >> 4) & 1
-  
-  //fixedHeight is only mentioned in binary spec 
-  if ((bitField >> 3) & 1)
-    info.fixedHeight = 1
-  
-  info.charset = buf.readUInt8(i+3) || ''
-  info.stretchH = buf.readUInt16LE(i+4)
-  info.aa = buf.readUInt8(i+6)
-  info.padding = [
-    buf.readInt8(i+7),
-    buf.readInt8(i+8),
-    buf.readInt8(i+9),
-    buf.readInt8(i+10)
-  ]
-  info.spacing = [
-    buf.readInt8(i+11),
-    buf.readInt8(i+12)
-  ]
-  info.outline = buf.readUInt8(i+13)
-  info.face = readStringNT(buf, i+14)
-  return info
-}
-
-function readCommon(buf, i) {
-  var common = {}
-  common.lineHeight = buf.readUInt16LE(i)
-  common.base = buf.readUInt16LE(i+2)
-  common.scaleW = buf.readUInt16LE(i+4)
-  common.scaleH = buf.readUInt16LE(i+6)
-  common.pages = buf.readUInt16LE(i+8)
-  var bitField = buf.readUInt8(i+10)
-  common.packed = 0
-  common.alphaChnl = buf.readUInt8(i+11)
-  common.redChnl = buf.readUInt8(i+12)
-  common.greenChnl = buf.readUInt8(i+13)
-  common.blueChnl = buf.readUInt8(i+14)
-  return common
-}
-
-function readPages(buf, i, size) {
-  var pages = []
-  var text = readNameNT(buf, i)
-  var len = text.length+1
-  var count = size / len
-  for (var c=0; c<count; c++) {
-    pages[c] = buf.slice(i, i+text.length).toString('utf8')
-    i += len
-  }
-  return pages
-}
-
-function readChars(buf, i, blockSize) {
-  var chars = []
-
-  var count = blockSize / 20
-  for (var c=0; c<count; c++) {
-    var char = {}
-    var off = c*20
-    char.id = buf.readUInt32LE(i + 0 + off)
-    char.x = buf.readUInt16LE(i + 4 + off)
-    char.y = buf.readUInt16LE(i + 6 + off)
-    char.width = buf.readUInt16LE(i + 8 + off)
-    char.height = buf.readUInt16LE(i + 10 + off)
-    char.xoffset = buf.readInt16LE(i + 12 + off)
-    char.yoffset = buf.readInt16LE(i + 14 + off)
-    char.xadvance = buf.readInt16LE(i + 16 + off)
-    char.page = buf.readUInt8(i + 18 + off)
-    char.chnl = buf.readUInt8(i + 19 + off)
-    chars[c] = char
-  }
-  return chars
-}
-
-function readKernings(buf, i, blockSize) {
-  var kernings = []
-  var count = blockSize / 10
-  for (var c=0; c<count; c++) {
-    var kern = {}
-    var off = c*10
-    kern.first = buf.readUInt32LE(i + 0 + off)
-    kern.second = buf.readUInt32LE(i + 4 + off)
-    kern.amount = buf.readInt16LE(i + 8 + off)
-    kernings[c] = kern
-  }
-  return kernings
-}
-
-function readNameNT(buf, offset) {
-  var pos=offset
-  for (; pos<buf.length; pos++) {
-    if (buf[pos] === 0x00) 
-      break
-  }
-  return buf.slice(offset, pos)
-}
-
-function readStringNT(buf, offset) {
-  return readNameNT(buf, offset).toString('utf8')
-}
-},{}],29:[function(_dereq_,module,exports){
-var parseAttributes = _dereq_('./parse-attribs')
-var parseFromString = _dereq_('xml-parse-from-string')
-
-//In some cases element.attribute.nodeName can return
-//all lowercase values.. so we need to map them to the correct 
-//case
-var NAME_MAP = {
-  scaleh: 'scaleH',
-  scalew: 'scaleW',
-  stretchh: 'stretchH',
-  lineheight: 'lineHeight',
-  alphachnl: 'alphaChnl',
-  redchnl: 'redChnl',
-  greenchnl: 'greenChnl',
-  bluechnl: 'blueChnl'
-}
-
-module.exports = function parse(data) {
-  data = data.toString()
-  
-  var xmlRoot = parseFromString(data)
-  var output = {
-    pages: [],
-    chars: [],
-    kernings: []
-  }
-
-  //get config settings
-  ;['info', 'common'].forEach(function(key) {
-    var element = xmlRoot.getElementsByTagName(key)[0]
-    if (element)
-      output[key] = parseAttributes(getAttribs(element))
-  })
-
-  //get page info
-  var pageRoot = xmlRoot.getElementsByTagName('pages')[0]
-  if (!pageRoot)
-    throw new Error('malformed file -- no <pages> element')
-  var pages = pageRoot.getElementsByTagName('page')
-  for (var i=0; i<pages.length; i++) {
-    var p = pages[i]
-    var id = parseInt(p.getAttribute('id'), 10)
-    var file = p.getAttribute('file')
-    if (isNaN(id))
-      throw new Error('malformed file -- page "id" attribute is NaN')
-    if (!file)
-      throw new Error('malformed file -- needs page "file" attribute')
-    output.pages[parseInt(id, 10)] = file
-  }
-
-  //get kernings / chars
-  ;['chars', 'kernings'].forEach(function(key) {
-    var element = xmlRoot.getElementsByTagName(key)[0]
-    if (!element)
-      return
-    var childTag = key.substring(0, key.length-1)
-    var children = element.getElementsByTagName(childTag)
-    for (var i=0; i<children.length; i++) {      
-      var child = children[i]
-      output[key].push(parseAttributes(getAttribs(child)))
-    }
-  })
-  return output
-}
-
-function getAttribs(element) {
-  var attribs = getAttribList(element)
-  return attribs.reduce(function(dict, attrib) {
-    var key = mapName(attrib.nodeName)
-    dict[key] = attrib.nodeValue
-    return dict
-  }, {})
-}
-
-function getAttribList(element) {
-  //IE8+ and modern browsers
-  var attribs = []
-  for (var i=0; i<element.attributes.length; i++)
-    attribs.push(element.attributes[i])
-  return attribs
-}
-
-function mapName(nodeName) {
-  return NAME_MAP[nodeName.toLowerCase()] || nodeName
-}
-},{"./parse-attribs":30,"xml-parse-from-string":73}],30:[function(_dereq_,module,exports){
-//Some versions of GlyphDesigner have a typo
-//that causes some bugs with parsing. 
-//Need to confirm with recent version of the software
-//to see whether this is still an issue or not.
-var GLYPH_DESIGNER_ERROR = 'chasrset'
-
-module.exports = function parseAttributes(obj) {
-  if (GLYPH_DESIGNER_ERROR in obj) {
-    obj['charset'] = obj[GLYPH_DESIGNER_ERROR]
-    delete obj[GLYPH_DESIGNER_ERROR]
-  }
-
-  for (var k in obj) {
-    if (k === 'face' || k === 'charset') 
-      continue
-    else if (k === 'padding' || k === 'spacing')
-      obj[k] = parseIntList(obj[k])
-    else
-      obj[k] = parseInt(obj[k], 10) 
-  }
-  return obj
-}
-
-function parseIntList(data) {
-  return data.split(',').map(function(val) {
-    return parseInt(val, 10)
-  })
-}
-},{}],31:[function(_dereq_,module,exports){
-var trim = _dereq_('trim')
-  , forEach = _dereq_('for-each')
-  , isArray = function(arg) {
-      return Object.prototype.toString.call(arg) === '[object Array]';
-    }
-
-module.exports = function (headers) {
-  if (!headers)
-    return {}
-
-  var result = {}
-
-  forEach(
-      trim(headers).split('\n')
-    , function (row) {
-        var index = row.indexOf(':')
-          , key = trim(row.slice(0, index)).toLowerCase()
-          , value = trim(row.slice(index + 1))
-
-        if (typeof(result[key]) === 'undefined') {
-          result[key] = value
-        } else if (isArray(result[key])) {
-          result[key].push(value)
-        } else {
-          result[key] = [ result[key], value ]
-        }
-      }
-  )
-
-  return result
-}
-},{"for-each":16,"trim":45}],32:[function(_dereq_,module,exports){
-(function (global){
-var performance = global.performance || {};
-
-var present = (function () {
-  var names = ['now', 'webkitNow', 'msNow', 'mozNow', 'oNow'];
-  while (names.length) {
-    var name = names.shift();
-    if (name in performance) {
-      return performance[name].bind(performance);
-    }
-  }
-
-  var dateNow = Date.now || function () { return new Date().getTime(); };
-  var navigationStart = (performance.timing || {}).navigationStart || dateNow();
-  return function () {
-    return dateNow() - navigationStart;
-  };
-}());
-
-present.performanceNow = performance.now;
-present.noConflict = function () {
-  performance.now = present.performanceNow;
-};
-present.conflict = function () {
-  performance.now = present;
-};
-present.conflict();
-
-module.exports = present;
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{}],33:[function(_dereq_,module,exports){
-(function(root) {
-
-	// Store setTimeout reference so promise-polyfill will be unaffected by
-	// other code modifying setTimeout (like sinon.useFakeTimers())
-	var setTimeoutFunc = setTimeout;
-
-	// Use polyfill for setImmediate for performance gains
-	var asap = (typeof setImmediate === 'function' && setImmediate) ||
-		function(fn) { setTimeoutFunc(fn, 1); };
-
-	// Polyfill for Function.prototype.bind
-	function bind(fn, thisArg) {
-		return function() {
-			fn.apply(thisArg, arguments);
-		}
-	}
-
-	var isArray = Array.isArray || function(value) { return Object.prototype.toString.call(value) === "[object Array]" };
-
-	function Promise(fn) {
-		if (typeof this !== 'object') throw new TypeError('Promises must be constructed via new');
-		if (typeof fn !== 'function') throw new TypeError('not a function');
-		this._state = null;
-		this._value = null;
-		this._deferreds = []
-
-		doResolve(fn, bind(resolve, this), bind(reject, this))
-	}
-
-	function handle(deferred) {
-		var me = this;
-		if (this._state === null) {
-			this._deferreds.push(deferred);
-			return
-		}
-		asap(function() {
-			var cb = me._state ? deferred.onFulfilled : deferred.onRejected
-			if (cb === null) {
-				(me._state ? deferred.resolve : deferred.reject)(me._value);
-				return;
-			}
-			var ret;
-			try {
-				ret = cb(me._value);
-			}
-			catch (e) {
-				deferred.reject(e);
-				return;
-			}
-			deferred.resolve(ret);
-		})
-	}
-
-	function resolve(newValue) {
-		try { //Promise Resolution Procedure: https://github.com/promises-aplus/promises-spec#the-promise-resolution-procedure
-			if (newValue === this) throw new TypeError('A promise cannot be resolved with itself.');
-			if (newValue && (typeof newValue === 'object' || typeof newValue === 'function')) {
-				var then = newValue.then;
-				if (typeof then === 'function') {
-					doResolve(bind(then, newValue), bind(resolve, this), bind(reject, this));
-					return;
-				}
-			}
-			this._state = true;
-			this._value = newValue;
-			finale.call(this);
-		} catch (e) { reject.call(this, e); }
-	}
-
-	function reject(newValue) {
-		this._state = false;
-		this._value = newValue;
-		finale.call(this);
-	}
-
-	function finale() {
-		for (var i = 0, len = this._deferreds.length; i < len; i++) {
-			handle.call(this, this._deferreds[i]);
-		}
-		this._deferreds = null;
-	}
-
-	function Handler(onFulfilled, onRejected, resolve, reject){
-		this.onFulfilled = typeof onFulfilled === 'function' ? onFulfilled : null;
-		this.onRejected = typeof onRejected === 'function' ? onRejected : null;
-		this.resolve = resolve;
-		this.reject = reject;
-	}
-
-	/**
-	 * Take a potentially misbehaving resolver function and make sure
-	 * onFulfilled and onRejected are only called once.
-	 *
-	 * Makes no guarantees about asynchrony.
-	 */
-	function doResolve(fn, onFulfilled, onRejected) {
-		var done = false;
-		try {
-			fn(function (value) {
-				if (done) return;
-				done = true;
-				onFulfilled(value);
-			}, function (reason) {
-				if (done) return;
-				done = true;
-				onRejected(reason);
-			})
-		} catch (ex) {
-			if (done) return;
-			done = true;
-			onRejected(ex);
-		}
-	}
-
-	Promise.prototype['catch'] = function (onRejected) {
-		return this.then(null, onRejected);
-	};
-
-	Promise.prototype.then = function(onFulfilled, onRejected) {
-		var me = this;
-		return new Promise(function(resolve, reject) {
-			handle.call(me, new Handler(onFulfilled, onRejected, resolve, reject));
-		})
-	};
-
-	Promise.all = function () {
-		var args = Array.prototype.slice.call(arguments.length === 1 && isArray(arguments[0]) ? arguments[0] : arguments);
-
-		return new Promise(function (resolve, reject) {
-			if (args.length === 0) return resolve([]);
-			var remaining = args.length;
-			function res(i, val) {
-				try {
-					if (val && (typeof val === 'object' || typeof val === 'function')) {
-						var then = val.then;
-						if (typeof then === 'function') {
-							then.call(val, function (val) { res(i, val) }, reject);
-							return;
-						}
-					}
-					args[i] = val;
-					if (--remaining === 0) {
-						resolve(args);
-					}
-				} catch (ex) {
-					reject(ex);
-				}
-			}
-			for (var i = 0; i < args.length; i++) {
-				res(i, args[i]);
-			}
-		});
-	};
-
-	Promise.resolve = function (value) {
-		if (value && typeof value === 'object' && value.constructor === Promise) {
-			return value;
-		}
-
-		return new Promise(function (resolve) {
-			resolve(value);
-		});
-	};
-
-	Promise.reject = function (value) {
-		return new Promise(function (resolve, reject) {
-			reject(value);
-		});
-	};
-
-	Promise.race = function (values) {
-		return new Promise(function (resolve, reject) {
-			for(var i = 0, len = values.length; i < len; i++) {
-				values[i].then(resolve, reject);
-			}
-		});
-	};
-
-	/**
-	 * Set the immediate function to execute callbacks
-	 * @param fn {function} Function to execute
-	 * @private
-	 */
-	Promise._setImmediateFn = function _setImmediateFn(fn) {
-		asap = fn;
-	};
-
-	if (typeof module !== 'undefined' && module.exports) {
-		module.exports = Promise;
-	} else if (!root.Promise) {
-		root.Promise = Promise;
-	}
-
-})(this);
-
-},{}],34:[function(_dereq_,module,exports){
-var dtype = _dereq_('dtype')
-var anArray = _dereq_('an-array')
-var isBuffer = _dereq_('is-buffer')
-
-var CW = [0, 2, 3]
-var CCW = [2, 1, 3]
-
-module.exports = function createQuadElements(array, opt) {
-    //if user didn't specify an output array
-    if (!array || !(anArray(array) || isBuffer(array))) {
-        opt = array || {}
-        array = null
-    }
-
-    if (typeof opt === 'number') //backwards-compatible
-        opt = { count: opt }
-    else
-        opt = opt || {}
-
-    var type = typeof opt.type === 'string' ? opt.type : 'uint16'
-    var count = typeof opt.count === 'number' ? opt.count : 1
-    var start = (opt.start || 0) 
-
-    var dir = opt.clockwise !== false ? CW : CCW,
-        a = dir[0], 
-        b = dir[1],
-        c = dir[2]
-
-    var numIndices = count * 6
-
-    var indices = array || new (dtype(type))(numIndices)
-    for (var i = 0, j = 0; i < numIndices; i += 6, j += 4) {
-        var x = i + start
-        indices[x + 0] = j + 0
-        indices[x + 1] = j + 1
-        indices[x + 2] = j + 2
-        indices[x + 3] = j + a
-        indices[x + 4] = j + b
-        indices[x + 5] = j + c
-    }
-    return indices
-}
-},{"an-array":2,"dtype":14,"is-buffer":20}],35:[function(_dereq_,module,exports){
-
-
-/*:: type Attr = { [key: string]: string | number } */
-/*:: type Opts = { preserveNumbers: ?boolean } */
-
-/*
-
-style-attr
-====
-
-Very simple parsing and stringifying of style attributes.
-
-`parse`
-----
-
-Convert a style attribute string to an object.
-
-*/
-
-/*:: declare function parse (raw: string, opts: ?Opts): Attr */
-function parse(raw, opts) {
-  opts = opts || {};
-
-  var preserveNumbers = opts.preserveNumbers;
-  var trim = function (s) {
-    return s.trim();
-  };
-  var obj = {};
-
-  getKeyValueChunks(raw).map(trim).filter(Boolean).forEach(function (item) {
-    // split with `.indexOf` rather than `.split` because the value may also contain colons.
-    var pos = item.indexOf(':');
-    var key = item.substr(0, pos).trim();
-    var val = item.substr(pos + 1).trim();
-    if (preserveNumbers && isNumeric(val)) {
-      val = Number(val);
-    }
-
-    obj[key] = val;
-  });
-
-  return obj;
-}
-
-/*
-
-`isNumeric`
-----
-
-Check if a value is numeric.
-Via: https://stackoverflow.com/a/1830844/9324
-
-*/
-
-/*:: declare function isNumeric (n: any): boolean */
-
-function isNumeric(n) {
-  return !isNaN(parseFloat(n)) && isFinite(n);
-}
-
-/*
-
-`getKeyValueChunks`
-----
-
-Split a string into chunks matching `<key>: <value>`
-
-*/
-/*:: declare function getKeyValueChunks (raw: string): Array<string> */
-function getKeyValueChunks(raw) {
-  var chunks = [];
-  var offset = 0;
-  var sep = ';';
-  var hasUnclosedUrl = /url\([^\)]+$/;
-  var chunk = '';
-  var nextSplit;
-  while (offset < raw.length) {
-    nextSplit = raw.indexOf(sep, offset);
-    if (nextSplit === -1) {
-      nextSplit = raw.length;
-    }
-
-    chunk += raw.substring(offset, nextSplit);
-
-    // data URIs can contain semicolons, so make sure we get the whole thing
-    if (hasUnclosedUrl.test(chunk)) {
-      chunk += ';';
-      offset = nextSplit + 1;
-      continue;
-    }
-
-    chunks.push(chunk);
-    chunk = '';
-    offset = nextSplit + 1;
-  }
-
-  return chunks;
-}
-
-/*
-
-`stringify`
-----
-
-Convert an object into an attribute string
-
-*/
-/*:: declare function stringify (obj: Attr): string */
-function stringify(obj) {
-  return Object.keys(obj).map(function (key) {
-    return key + ':' + obj[key];
-  }).join(';');
-}
-
-/*
-
-`normalize`
-----
-
-Normalize an attribute string (eg. collapse duplicates)
-
-*/
-/*:: declare function normalize (str: string, opts: ?Opts): string */
-function normalize(str, opts) {
-  return stringify(parse(str, opts));
-}
-
-module.exports.parse = parse;
-module.exports.stringify = stringify;
-module.exports.normalize = normalize;
-},{}],36:[function(_dereq_,module,exports){
-var createLayout = _dereq_('layout-bmfont-text')
-var inherits = _dereq_('inherits')
-var createIndices = _dereq_('quad-indices')
-var buffer = _dereq_('three-buffer-vertex-data')
-var assign = _dereq_('object-assign')
-
-var vertices = _dereq_('./lib/vertices')
-var utils = _dereq_('./lib/utils')
-
-var Base = THREE.BufferGeometry
-
-module.exports = function createTextGeometry (opt) {
-  return new TextGeometry(opt)
-}
-
-function TextGeometry (opt) {
-  Base.call(this)
-
-  if (typeof opt === 'string') {
-    opt = { text: opt }
-  }
-
-  // use these as default values for any subsequent
-  // calls to update()
-  this._opt = assign({}, opt)
-
-  // also do an initial setup...
-  if (opt) this.update(opt)
-}
-
-inherits(TextGeometry, Base)
-
-TextGeometry.prototype.update = function (opt) {
-  if (typeof opt === 'string') {
-    opt = { text: opt }
-  }
-
-  // use constructor defaults
-  opt = assign({}, this._opt, opt)
-
-  if (!opt.font) {
-    throw new TypeError('must specify a { font } in options')
-  }
-
-  this.layout = createLayout(opt)
-
-  // get vec2 texcoords
-  var flipY = opt.flipY !== false
-
-  // the desired BMFont data
-  var font = opt.font
-
-  // determine texture size from font file
-  var texWidth = font.common.scaleW
-  var texHeight = font.common.scaleH
-
-  // get visible glyphs
-  var glyphs = this.layout.glyphs.filter(function (glyph) {
-    var bitmap = glyph.data
-    return bitmap.width * bitmap.height > 0
-  })
-
-  // provide visible glyphs for convenience
-  this.visibleGlyphs = glyphs
-
-  // get common vertex data
-  var positions = vertices.positions(glyphs)
-  var uvs = vertices.uvs(glyphs, texWidth, texHeight, flipY)
-  var indices = createIndices({
-    clockwise: true,
-    type: 'uint16',
-    count: glyphs.length
-  })
-
-  // update vertex data
-  buffer.index(this, indices, 1, 'uint16')
-  buffer.attr(this, 'position', positions, 2)
-  buffer.attr(this, 'uv', uvs, 2)
-
-  // update multipage data
-  if (!opt.multipage && 'page' in this.attributes) {
-    // disable multipage rendering
-    this.removeAttribute('page')
-  } else if (opt.multipage) {
-    var pages = vertices.pages(glyphs)
-    // enable multipage rendering
-    buffer.attr(this, 'page', pages, 1)
-  }
-}
-
-TextGeometry.prototype.computeBoundingSphere = function () {
-  if (this.boundingSphere === null) {
-    this.boundingSphere = new THREE.Sphere()
-  }
-
-  var positions = this.attributes.position.array
-  var itemSize = this.attributes.position.itemSize
-  if (!positions || !itemSize || positions.length < 2) {
-    this.boundingSphere.radius = 0
-    this.boundingSphere.center.set(0, 0, 0)
-    return
-  }
-  utils.computeSphere(positions, this.boundingSphere)
-  if (isNaN(this.boundingSphere.radius)) {
-    console.error('THREE.BufferGeometry.computeBoundingSphere(): ' +
-      'Computed radius is NaN. The ' +
-      '"position" attribute is likely to have NaN values.')
-  }
-}
-
-TextGeometry.prototype.computeBoundingBox = function () {
-  if (this.boundingBox === null) {
-    this.boundingBox = new THREE.Box3()
-  }
-
-  var bbox = this.boundingBox
-  var positions = this.attributes.position.array
-  var itemSize = this.attributes.position.itemSize
-  if (!positions || !itemSize || positions.length < 2) {
-    bbox.makeEmpty()
-    return
-  }
-  utils.computeBox(positions, bbox)
-}
-
-},{"./lib/utils":37,"./lib/vertices":38,"inherits":19,"layout-bmfont-text":23,"object-assign":26,"quad-indices":34,"three-buffer-vertex-data":39}],37:[function(_dereq_,module,exports){
-var itemSize = 2
-var box = { min: [0, 0], max: [0, 0] }
-
-function bounds (positions) {
-  var count = positions.length / itemSize
-  box.min[0] = positions[0]
-  box.min[1] = positions[1]
-  box.max[0] = positions[0]
-  box.max[1] = positions[1]
-
-  for (var i = 0; i < count; i++) {
-    var x = positions[i * itemSize + 0]
-    var y = positions[i * itemSize + 1]
-    box.min[0] = Math.min(x, box.min[0])
-    box.min[1] = Math.min(y, box.min[1])
-    box.max[0] = Math.max(x, box.max[0])
-    box.max[1] = Math.max(y, box.max[1])
-  }
-}
-
-module.exports.computeBox = function (positions, output) {
-  bounds(positions)
-  output.min.set(box.min[0], box.min[1], 0)
-  output.max.set(box.max[0], box.max[1], 0)
-}
-
-module.exports.computeSphere = function (positions, output) {
-  bounds(positions)
-  var minX = box.min[0]
-  var minY = box.min[1]
-  var maxX = box.max[0]
-  var maxY = box.max[1]
-  var width = maxX - minX
-  var height = maxY - minY
-  var length = Math.sqrt(width * width + height * height)
-  output.center.set(minX + width / 2, minY + height / 2, 0)
-  output.radius = length / 2
-}
-
-},{}],38:[function(_dereq_,module,exports){
-module.exports.pages = function pages (glyphs) {
-  var pages = new Float32Array(glyphs.length * 4 * 1)
-  var i = 0
-  glyphs.forEach(function (glyph) {
-    var id = glyph.data.page || 0
-    pages[i++] = id
-    pages[i++] = id
-    pages[i++] = id
-    pages[i++] = id
-  })
-  return pages
-}
-
-module.exports.uvs = function uvs (glyphs, texWidth, texHeight, flipY) {
-  var uvs = new Float32Array(glyphs.length * 4 * 2)
-  var i = 0
-  glyphs.forEach(function (glyph) {
-    var bitmap = glyph.data
-    var bw = (bitmap.x + bitmap.width)
-    var bh = (bitmap.y + bitmap.height)
-
-    // top left position
-    var u0 = bitmap.x / texWidth
-    var v1 = bitmap.y / texHeight
-    var u1 = bw / texWidth
-    var v0 = bh / texHeight
-
-    if (flipY) {
-      v1 = (texHeight - bitmap.y) / texHeight
-      v0 = (texHeight - bh) / texHeight
-    }
-
-    // BL
-    uvs[i++] = u0
-    uvs[i++] = v1
-    // TL
-    uvs[i++] = u0
-    uvs[i++] = v0
-    // TR
-    uvs[i++] = u1
-    uvs[i++] = v0
-    // BR
-    uvs[i++] = u1
-    uvs[i++] = v1
-  })
-  return uvs
-}
-
-module.exports.positions = function positions (glyphs) {
-  var positions = new Float32Array(glyphs.length * 4 * 2)
-  var i = 0
-  glyphs.forEach(function (glyph) {
-    var bitmap = glyph.data
-
-    // bottom left position
-    var x = glyph.position[0] + bitmap.xoffset
-    var y = glyph.position[1] + bitmap.yoffset
-
-    // quad size
-    var w = bitmap.width
-    var h = bitmap.height
-
-    // BL
-    positions[i++] = x
-    positions[i++] = y
-    // TL
-    positions[i++] = x
-    positions[i++] = y + h
-    // TR
-    positions[i++] = x + w
-    positions[i++] = y + h
-    // BR
-    positions[i++] = x + w
-    positions[i++] = y
-  })
-  return positions
-}
-
-},{}],39:[function(_dereq_,module,exports){
-var flatten = _dereq_('flatten-vertex-data')
-var warned = false;
-
-module.exports.attr = setAttribute
-module.exports.index = setIndex
-
-function setIndex (geometry, data, itemSize, dtype) {
-  if (typeof itemSize !== 'number') itemSize = 1
-  if (typeof dtype !== 'string') dtype = 'uint16'
-
-  var isR69 = !geometry.index && typeof geometry.setIndex !== 'function'
-  var attrib = isR69 ? geometry.getAttribute('index') : geometry.index
-  var newAttrib = updateAttribute(attrib, data, itemSize, dtype)
-  if (newAttrib) {
-    if (isR69) geometry.addAttribute('index', newAttrib)
-    else geometry.index = newAttrib
-  }
-}
-
-function setAttribute (geometry, key, data, itemSize, dtype) {
-  if (typeof itemSize !== 'number') itemSize = 3
-  if (typeof dtype !== 'string') dtype = 'float32'
-  if (Array.isArray(data) &&
-    Array.isArray(data[0]) &&
-    data[0].length !== itemSize) {
-    throw new Error('Nested vertex array has unexpected size; expected ' +
-      itemSize + ' but found ' + data[0].length)
-  }
-
-  var attrib = geometry.getAttribute(key)
-  var newAttrib = updateAttribute(attrib, data, itemSize, dtype)
-  if (newAttrib) {
-    geometry.addAttribute(key, newAttrib)
-  }
-}
-
-function updateAttribute (attrib, data, itemSize, dtype) {
-  data = data || []
-  if (!attrib || rebuildAttribute(attrib, data, itemSize)) {
-    // create a new array with desired type
-    data = flatten(data, dtype)
-
-    var needsNewBuffer = attrib && typeof attrib.setArray !== 'function'
-    if (!attrib || needsNewBuffer) {
-      // We are on an old version of ThreeJS which can't
-      // support growing / shrinking buffers, so we need
-      // to build a new buffer
-      if (needsNewBuffer && !warned) {
-        warned = true
-        console.warn([
-          'A WebGL buffer is being updated with a new size or itemSize, ',
-          'however this version of ThreeJS only supports fixed-size buffers.',
-          '\nThe old buffer may still be kept in memory.\n',
-          'To avoid memory leaks, it is recommended that you dispose ',
-          'your geometries and create new ones, or update to ThreeJS r82 or newer.\n',
-          'See here for discussion:\n',
-          'https://github.com/mrdoob/three.js/pull/9631'
-        ].join(''))
-      }
-
-      // Build a new attribute
-      attrib = new THREE.BufferAttribute(data, itemSize);
-    }
-
-    attrib.itemSize = itemSize
-    attrib.needsUpdate = true
-
-    // New versions of ThreeJS suggest using setArray
-    // to change the data. It will use bufferData internally,
-    // so you can change the array size without any issues
-    if (typeof attrib.setArray === 'function') {
-      attrib.setArray(data)
-    }
-
-    return attrib
-  } else {
-    // copy data into the existing array
-    flatten(data, attrib.array)
-    attrib.needsUpdate = true
-    return null
-  }
-}
-
-// Test whether the attribute needs to be re-created,
-// returns false if we can re-use it as-is.
-function rebuildAttribute (attrib, data, itemSize) {
-  if (attrib.itemSize !== itemSize) return true
-  if (!attrib.array) return true
-  var attribLength = attrib.array.length
-  if (Array.isArray(data) && Array.isArray(data[0])) {
-    // [ [ x, y, z ] ]
-    return attribLength !== data.length * itemSize
-  } else {
-    // [ x, y, z ]
-    return attribLength !== data.length
-  }
-  return false
-}
-
-},{"flatten-vertex-data":15}],40:[function(_dereq_,module,exports){
-(function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
-	typeof define === 'function' && define.amd ? define(['exports'], factory) :
-	(factory((global.THREE = {})));
-}(this, (function (exports) { 'use strict';
-
-	// Polyfills
-
-	if ( Number.EPSILON === undefined ) {
-
-		Number.EPSILON = Math.pow( 2, - 52 );
-
-	}
-
-	if ( Number.isInteger === undefined ) {
-
-		// Missing in IE
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger
-
-		Number.isInteger = function ( value ) {
-
-			return typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;
-
-		};
-
-	}
-
-	//
-
-	if ( Math.sign === undefined ) {
-
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign
-
-		Math.sign = function ( x ) {
-
-			return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;
-
-		};
-
-	}
-
-	if ( 'name' in Function.prototype === false ) {
-
-		// Missing in IE
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name
-
-		Object.defineProperty( Function.prototype, 'name', {
-
-			get: function () {
-
-				return this.toString().match( /^\s*function\s*([^\(\s]*)/ )[ 1 ];
-
-			}
-
-		} );
-
-	}
-
-	if ( Object.assign === undefined ) {
-
-		// Missing in IE
-		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
-
-		( function () {
-
-			Object.assign = function ( target ) {
-
-				if ( target === undefined || target === null ) {
-
-					throw new TypeError( 'Cannot convert undefined or null to object' );
-
-				}
-
-				var output = Object( target );
-
-				for ( var index = 1; index < arguments.length; index ++ ) {
-
-					var source = arguments[ index ];
-
-					if ( source !== undefined && source !== null ) {
-
-						for ( var nextKey in source ) {
-
-							if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {
-
-								output[ nextKey ] = source[ nextKey ];
-
-							}
-
-						}
-
-					}
-
-				}
-
-				return output;
-
-			};
-
-		} )();
-
-	}
-
-	/**
-	 * https://github.com/mrdoob/eventdispatcher.js/
-	 */
-
-	function EventDispatcher() {}
-
-	Object.assign( EventDispatcher.prototype, {
-
-		addEventListener: function ( type, listener ) {
-
-			if ( this._listeners === undefined ) this._listeners = {};
-
-			var listeners = this._listeners;
-
-			if ( listeners[ type ] === undefined ) {
-
-				listeners[ type ] = [];
-
-			}
-
-			if ( listeners[ type ].indexOf( listener ) === - 1 ) {
-
-				listeners[ type ].push( listener );
-
-			}
-
-		},
-
-		hasEventListener: function ( type, listener ) {
-
-			if ( this._listeners === undefined ) return false;
-
-			var listeners = this._listeners;
-
-			return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;
-
-		},
-
-		removeEventListener: function ( type, listener ) {
-
-			if ( this._listeners === undefined ) return;
-
-			var listeners = this._listeners;
-			var listenerArray = listeners[ type ];
-
-			if ( listenerArray !== undefined ) {
-
-				var index = listenerArray.indexOf( listener );
-
-				if ( index !== - 1 ) {
-
-					listenerArray.splice( index, 1 );
-
-				}
-
-			}
-
-		},
-
-		dispatchEvent: function ( event ) {
-
-			if ( this._listeners === undefined ) return;
-
-			var listeners = this._listeners;
-			var listenerArray = listeners[ event.type ];
-
-			if ( listenerArray !== undefined ) {
-
-				event.target = this;
-
-				var array = listenerArray.slice( 0 );
-
-				for ( var i = 0, l = array.length; i < l; i ++ ) {
-
-					array[ i ].call( this, event );
-
-				}
-
-			}
-
-		}
-
-	} );
-
-	var REVISION = '90';
-	var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };
-	var CullFaceNone = 0;
-	var CullFaceBack = 1;
-	var CullFaceFront = 2;
-	var CullFaceFrontBack = 3;
-	var FrontFaceDirectionCW = 0;
-	var FrontFaceDirectionCCW = 1;
-	var BasicShadowMap = 0;
-	var PCFShadowMap = 1;
-	var PCFSoftShadowMap = 2;
-	var FrontSide = 0;
-	var BackSide = 1;
-	var DoubleSide = 2;
-	var FlatShading = 1;
-	var SmoothShading = 2;
-	var NoColors = 0;
-	var FaceColors = 1;
-	var VertexColors = 2;
-	var NoBlending = 0;
-	var NormalBlending = 1;
-	var AdditiveBlending = 2;
-	var SubtractiveBlending = 3;
-	var MultiplyBlending = 4;
-	var CustomBlending = 5;
-	var AddEquation = 100;
-	var SubtractEquation = 101;
-	var ReverseSubtractEquation = 102;
-	var MinEquation = 103;
-	var MaxEquation = 104;
-	var ZeroFactor = 200;
-	var OneFactor = 201;
-	var SrcColorFactor = 202;
-	var OneMinusSrcColorFactor = 203;
-	var SrcAlphaFactor = 204;
-	var OneMinusSrcAlphaFactor = 205;
-	var DstAlphaFactor = 206;
-	var OneMinusDstAlphaFactor = 207;
-	var DstColorFactor = 208;
-	var OneMinusDstColorFactor = 209;
-	var SrcAlphaSaturateFactor = 210;
-	var NeverDepth = 0;
-	var AlwaysDepth = 1;
-	var LessDepth = 2;
-	var LessEqualDepth = 3;
-	var EqualDepth = 4;
-	var GreaterEqualDepth = 5;
-	var GreaterDepth = 6;
-	var NotEqualDepth = 7;
-	var MultiplyOperation = 0;
-	var MixOperation = 1;
-	var AddOperation = 2;
-	var NoToneMapping = 0;
-	var LinearToneMapping = 1;
-	var ReinhardToneMapping = 2;
-	var Uncharted2ToneMapping = 3;
-	var CineonToneMapping = 4;
-	var UVMapping = 300;
-	var CubeReflectionMapping = 301;
-	var CubeRefractionMapping = 302;
-	var EquirectangularReflectionMapping = 303;
-	var EquirectangularRefractionMapping = 304;
-	var SphericalReflectionMapping = 305;
-	var CubeUVReflectionMapping = 306;
-	var CubeUVRefractionMapping = 307;
-	var RepeatWrapping = 1000;
-	var ClampToEdgeWrapping = 1001;
-	var MirroredRepeatWrapping = 1002;
-	var NearestFilter = 1003;
-	var NearestMipMapNearestFilter = 1004;
-	var NearestMipMapLinearFilter = 1005;
-	var LinearFilter = 1006;
-	var LinearMipMapNearestFilter = 1007;
-	var LinearMipMapLinearFilter = 1008;
-	var UnsignedByteType = 1009;
-	var ByteType = 1010;
-	var ShortType = 1011;
-	var UnsignedShortType = 1012;
-	var IntType = 1013;
-	var UnsignedIntType = 1014;
-	var FloatType = 1015;
-	var HalfFloatType = 1016;
-	var UnsignedShort4444Type = 1017;
-	var UnsignedShort5551Type = 1018;
-	var UnsignedShort565Type = 1019;
-	var UnsignedInt248Type = 1020;
-	var AlphaFormat = 1021;
-	var RGBFormat = 1022;
-	var RGBAFormat = 1023;
-	var LuminanceFormat = 1024;
-	var LuminanceAlphaFormat = 1025;
-	var RGBEFormat = RGBAFormat;
-	var DepthFormat = 1026;
-	var DepthStencilFormat = 1027;
-	var RGB_S3TC_DXT1_Format = 33776;
-	var RGBA_S3TC_DXT1_Format = 33777;
-	var RGBA_S3TC_DXT3_Format = 33778;
-	var RGBA_S3TC_DXT5_Format = 33779;
-	var RGB_PVRTC_4BPPV1_Format = 35840;
-	var RGB_PVRTC_2BPPV1_Format = 35841;
-	var RGBA_PVRTC_4BPPV1_Format = 35842;
-	var RGBA_PVRTC_2BPPV1_Format = 35843;
-	var RGB_ETC1_Format = 36196;
-	var RGBA_ASTC_4x4_Format = 37808;
-	var RGBA_ASTC_5x4_Format = 37809;
-	var RGBA_ASTC_5x5_Format = 37810;
-	var RGBA_ASTC_6x5_Format = 37811;
-	var RGBA_ASTC_6x6_Format = 37812;
-	var RGBA_ASTC_8x5_Format = 37813;
-	var RGBA_ASTC_8x6_Format = 37814;
-	var RGBA_ASTC_8x8_Format = 37815;
-	var RGBA_ASTC_10x5_Format = 37816;
-	var RGBA_ASTC_10x6_Format = 37817;
-	var RGBA_ASTC_10x8_Format = 37818;
-	var RGBA_ASTC_10x10_Format = 37819;
-	var RGBA_ASTC_12x10_Format = 37820;
-	var RGBA_ASTC_12x12_Format = 37821;
-	var LoopOnce = 2200;
-	var LoopRepeat = 2201;
-	var LoopPingPong = 2202;
-	var InterpolateDiscrete = 2300;
-	var InterpolateLinear = 2301;
-	var InterpolateSmooth = 2302;
-	var ZeroCurvatureEnding = 2400;
-	var ZeroSlopeEnding = 2401;
-	var WrapAroundEnding = 2402;
-	var TrianglesDrawMode = 0;
-	var TriangleStripDrawMode = 1;
-	var TriangleFanDrawMode = 2;
-	var LinearEncoding = 3000;
-	var sRGBEncoding = 3001;
-	var GammaEncoding = 3007;
-	var RGBEEncoding = 3002;
-	var LogLuvEncoding = 3003;
-	var RGBM7Encoding = 3004;
-	var RGBM16Encoding = 3005;
-	var RGBDEncoding = 3006;
-	var BasicDepthPacking = 3200;
-	var RGBADepthPacking = 3201;
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var _Math = {
-
-		DEG2RAD: Math.PI / 180,
-		RAD2DEG: 180 / Math.PI,
-
-		generateUUID: ( function () {
-
-			// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
-
-			var lut = [];
-
-			for ( var i = 0; i < 256; i ++ ) {
-
-				lut[ i ] = ( i < 16 ? '0' : '' ) + ( i ).toString( 16 ).toUpperCase();
-
-			}
-
-			return function generateUUID() {
-
-				var d0 = Math.random() * 0xffffffff | 0;
-				var d1 = Math.random() * 0xffffffff | 0;
-				var d2 = Math.random() * 0xffffffff | 0;
-				var d3 = Math.random() * 0xffffffff | 0;
-				return lut[ d0 & 0xff ] + lut[ d0 >> 8 & 0xff ] + lut[ d0 >> 16 & 0xff ] + lut[ d0 >> 24 & 0xff ] + '-' +
-					lut[ d1 & 0xff ] + lut[ d1 >> 8 & 0xff ] + '-' + lut[ d1 >> 16 & 0x0f | 0x40 ] + lut[ d1 >> 24 & 0xff ] + '-' +
-					lut[ d2 & 0x3f | 0x80 ] + lut[ d2 >> 8 & 0xff ] + '-' + lut[ d2 >> 16 & 0xff ] + lut[ d2 >> 24 & 0xff ] +
-					lut[ d3 & 0xff ] + lut[ d3 >> 8 & 0xff ] + lut[ d3 >> 16 & 0xff ] + lut[ d3 >> 24 & 0xff ];
-
-			};
-
-		} )(),
-
-		clamp: function ( value, min, max ) {
-
-			return Math.max( min, Math.min( max, value ) );
-
-		},
-
-		// compute euclidian modulo of m % n
-		// https://en.wikipedia.org/wiki/Modulo_operation
-
-		euclideanModulo: function ( n, m ) {
-
-			return ( ( n % m ) + m ) % m;
-
-		},
-
-		// Linear mapping from range <a1, a2> to range <b1, b2>
-
-		mapLinear: function ( x, a1, a2, b1, b2 ) {
-
-			return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );
-
-		},
-
-		// https://en.wikipedia.org/wiki/Linear_interpolation
-
-		lerp: function ( x, y, t ) {
-
-			return ( 1 - t ) * x + t * y;
-
-		},
-
-		// http://en.wikipedia.org/wiki/Smoothstep
-
-		smoothstep: function ( x, min, max ) {
-
-			if ( x <= min ) return 0;
-			if ( x >= max ) return 1;
-
-			x = ( x - min ) / ( max - min );
-
-			return x * x * ( 3 - 2 * x );
-
-		},
-
-		smootherstep: function ( x, min, max ) {
-
-			if ( x <= min ) return 0;
-			if ( x >= max ) return 1;
-
-			x = ( x - min ) / ( max - min );
-
-			return x * x * x * ( x * ( x * 6 - 15 ) + 10 );
-
-		},
-
-		// Random integer from <low, high> interval
-
-		randInt: function ( low, high ) {
-
-			return low + Math.floor( Math.random() * ( high - low + 1 ) );
-
-		},
-
-		// Random float from <low, high> interval
-
-		randFloat: function ( low, high ) {
-
-			return low + Math.random() * ( high - low );
-
-		},
-
-		// Random float from <-range/2, range/2> interval
-
-		randFloatSpread: function ( range ) {
-
-			return range * ( 0.5 - Math.random() );
-
-		},
-
-		degToRad: function ( degrees ) {
-
-			return degrees * _Math.DEG2RAD;
-
-		},
-
-		radToDeg: function ( radians ) {
-
-			return radians * _Math.RAD2DEG;
-
-		},
-
-		isPowerOfTwo: function ( value ) {
-
-			return ( value & ( value - 1 ) ) === 0 && value !== 0;
-
-		},
-
-		ceilPowerOfTwo: function ( value ) {
-
-			return Math.pow( 2, Math.ceil( Math.log( value ) / Math.LN2 ) );
-
-		},
-
-		floorPowerOfTwo: function ( value ) {
-
-			return Math.pow( 2, Math.floor( Math.log( value ) / Math.LN2 ) );
-
-		}
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author egraether / http://egraether.com/
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 */
-
-	function Vector2( x, y ) {
-
-		this.x = x || 0;
-		this.y = y || 0;
-
-	}
-
-	Object.defineProperties( Vector2.prototype, {
-
-		"width": {
-
-			get: function () {
-
-				return this.x;
-
-			},
-
-			set: function ( value ) {
-
-				this.x = value;
-
-			}
-
-		},
-
-		"height": {
-
-			get: function () {
-
-				return this.y;
-
-			},
-
-			set: function ( value ) {
-
-				this.y = value;
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( Vector2.prototype, {
-
-		isVector2: true,
-
-		set: function ( x, y ) {
-
-			this.x = x;
-			this.y = y;
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.x = scalar;
-			this.y = scalar;
-
-			return this;
-
-		},
-
-		setX: function ( x ) {
-
-			this.x = x;
-
-			return this;
-
-		},
-
-		setY: function ( y ) {
-
-			this.y = y;
-
-			return this;
-
-		},
-
-		setComponent: function ( index, value ) {
-
-			switch ( index ) {
-
-				case 0: this.x = value; break;
-				case 1: this.y = value; break;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-			return this;
-
-		},
-
-		getComponent: function ( index ) {
-
-			switch ( index ) {
-
-				case 0: return this.x;
-				case 1: return this.y;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.x, this.y );
-
-		},
-
-		copy: function ( v ) {
-
-			this.x = v.x;
-			this.y = v.y;
-
-			return this;
-
-		},
-
-		add: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
-				return this.addVectors( v, w );
-
-			}
-
-			this.x += v.x;
-			this.y += v.y;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.x += s;
-			this.y += s;
-
-			return this;
-
-		},
-
-		addVectors: function ( a, b ) {
-
-			this.x = a.x + b.x;
-			this.y = a.y + b.y;
-
-			return this;
-
-		},
-
-		addScaledVector: function ( v, s ) {
-
-			this.x += v.x * s;
-			this.y += v.y * s;
-
-			return this;
-
-		},
-
-		sub: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
-				return this.subVectors( v, w );
-
-			}
-
-			this.x -= v.x;
-			this.y -= v.y;
-
-			return this;
-
-		},
-
-		subScalar: function ( s ) {
-
-			this.x -= s;
-			this.y -= s;
-
-			return this;
-
-		},
-
-		subVectors: function ( a, b ) {
-
-			this.x = a.x - b.x;
-			this.y = a.y - b.y;
-
-			return this;
-
-		},
-
-		multiply: function ( v ) {
-
-			this.x *= v.x;
-			this.y *= v.y;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( scalar ) {
-
-			this.x *= scalar;
-			this.y *= scalar;
-
-			return this;
-
-		},
-
-		divide: function ( v ) {
-
-			this.x /= v.x;
-			this.y /= v.y;
-
-			return this;
-
-		},
-
-		divideScalar: function ( scalar ) {
-
-			return this.multiplyScalar( 1 / scalar );
-
-		},
-
-		applyMatrix3: function ( m ) {
-
-			var x = this.x, y = this.y;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ];
-			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ];
-
-			return this;
-
-		},
-
-		min: function ( v ) {
-
-			this.x = Math.min( this.x, v.x );
-			this.y = Math.min( this.y, v.y );
-
-			return this;
-
-		},
-
-		max: function ( v ) {
-
-			this.x = Math.max( this.x, v.x );
-			this.y = Math.max( this.y, v.y );
-
-			return this;
-
-		},
-
-		clamp: function ( min, max ) {
-
-			// assumes min < max, componentwise
-
-			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
-			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
-
-			return this;
-
-		},
-
-		clampScalar: function () {
-
-			var min = new Vector2();
-			var max = new Vector2();
-
-			return function clampScalar( minVal, maxVal ) {
-
-				min.set( minVal, minVal );
-				max.set( maxVal, maxVal );
-
-				return this.clamp( min, max );
-
-			};
-
-		}(),
-
-		clampLength: function ( min, max ) {
-
-			var length = this.length();
-
-			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
-
-		},
-
-		floor: function () {
-
-			this.x = Math.floor( this.x );
-			this.y = Math.floor( this.y );
-
-			return this;
-
-		},
-
-		ceil: function () {
-
-			this.x = Math.ceil( this.x );
-			this.y = Math.ceil( this.y );
-
-			return this;
-
-		},
-
-		round: function () {
-
-			this.x = Math.round( this.x );
-			this.y = Math.round( this.y );
-
-			return this;
-
-		},
-
-		roundToZero: function () {
-
-			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
-			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.x = - this.x;
-			this.y = - this.y;
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this.x * v.x + this.y * v.y;
-
-		},
-
-		lengthSq: function () {
-
-			return this.x * this.x + this.y * this.y;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this.x * this.x + this.y * this.y );
-
-		},
-
-		manhattanLength: function () {
-
-			return Math.abs( this.x ) + Math.abs( this.y );
-
-		},
-
-		normalize: function () {
-
-			return this.divideScalar( this.length() || 1 );
-
-		},
-
-		angle: function () {
-
-			// computes the angle in radians with respect to the positive x-axis
-
-			var angle = Math.atan2( this.y, this.x );
-
-			if ( angle < 0 ) angle += 2 * Math.PI;
-
-			return angle;
-
-		},
-
-		distanceTo: function ( v ) {
-
-			return Math.sqrt( this.distanceToSquared( v ) );
-
-		},
-
-		distanceToSquared: function ( v ) {
-
-			var dx = this.x - v.x, dy = this.y - v.y;
-			return dx * dx + dy * dy;
-
-		},
-
-		manhattanDistanceTo: function ( v ) {
-
-			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );
-
-		},
-
-		setLength: function ( length ) {
-
-			return this.normalize().multiplyScalar( length );
-
-		},
-
-		lerp: function ( v, alpha ) {
-
-			this.x += ( v.x - this.x ) * alpha;
-			this.y += ( v.y - this.y ) * alpha;
-
-			return this;
-
-		},
-
-		lerpVectors: function ( v1, v2, alpha ) {
-
-			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
-
-		},
-
-		equals: function ( v ) {
-
-			return ( ( v.x === this.x ) && ( v.y === this.y ) );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.x = array[ offset ];
-			this.y = array[ offset + 1 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.x;
-			array[ offset + 1 ] = this.y;
-
-			return array;
-
-		},
-
-		fromBufferAttribute: function ( attribute, index, offset ) {
-
-			if ( offset !== undefined ) {
-
-				console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );
-
-			}
-
-			this.x = attribute.getX( index );
-			this.y = attribute.getY( index );
-
-			return this;
-
-		},
-
-		rotateAround: function ( center, angle ) {
-
-			var c = Math.cos( angle ), s = Math.sin( angle );
-
-			var x = this.x - center.x;
-			var y = this.y - center.y;
-
-			this.x = x * c - y * s + center.x;
-			this.y = x * s + y * c + center.y;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author supereggbert / http://www.paulbrunt.co.uk/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author jordi_ros / http://plattsoft.com
-	 * @author D1plo1d / http://github.com/D1plo1d
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author timknip / http://www.floorplanner.com/
-	 * @author bhouston / http://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Matrix4() {
-
-		this.elements = [
-
-			1, 0, 0, 0,
-			0, 1, 0, 0,
-			0, 0, 1, 0,
-			0, 0, 0, 1
-
-		];
-
-		if ( arguments.length > 0 ) {
-
-			console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );
-
-		}
-
-	}
-
-	Object.assign( Matrix4.prototype, {
-
-		isMatrix4: true,
-
-		set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {
-
-			var te = this.elements;
-
-			te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
-			te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
-			te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
-			te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;
-
-			return this;
-
-		},
-
-		identity: function () {
-
-			this.set(
-
-				1, 0, 0, 0,
-				0, 1, 0, 0,
-				0, 0, 1, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new Matrix4().fromArray( this.elements );
-
-		},
-
-		copy: function ( m ) {
-
-			var te = this.elements;
-			var me = m.elements;
-
-			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
-			te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
-			te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
-			te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];
-
-			return this;
-
-		},
-
-		copyPosition: function ( m ) {
-
-			var te = this.elements, me = m.elements;
-
-			te[ 12 ] = me[ 12 ];
-			te[ 13 ] = me[ 13 ];
-			te[ 14 ] = me[ 14 ];
-
-			return this;
-
-		},
-
-		extractBasis: function ( xAxis, yAxis, zAxis ) {
-
-			xAxis.setFromMatrixColumn( this, 0 );
-			yAxis.setFromMatrixColumn( this, 1 );
-			zAxis.setFromMatrixColumn( this, 2 );
-
-			return this;
-
-		},
-
-		makeBasis: function ( xAxis, yAxis, zAxis ) {
-
-			this.set(
-				xAxis.x, yAxis.x, zAxis.x, 0,
-				xAxis.y, yAxis.y, zAxis.y, 0,
-				xAxis.z, yAxis.z, zAxis.z, 0,
-				0, 0, 0, 1
-			);
-
-			return this;
-
-		},
-
-		extractRotation: function () {
-
-			var v1 = new Vector3();
-
-			return function extractRotation( m ) {
-
-				var te = this.elements;
-				var me = m.elements;
-
-				var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();
-				var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();
-				var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();
-
-				te[ 0 ] = me[ 0 ] * scaleX;
-				te[ 1 ] = me[ 1 ] * scaleX;
-				te[ 2 ] = me[ 2 ] * scaleX;
-
-				te[ 4 ] = me[ 4 ] * scaleY;
-				te[ 5 ] = me[ 5 ] * scaleY;
-				te[ 6 ] = me[ 6 ] * scaleY;
-
-				te[ 8 ] = me[ 8 ] * scaleZ;
-				te[ 9 ] = me[ 9 ] * scaleZ;
-				te[ 10 ] = me[ 10 ] * scaleZ;
-
-				return this;
-
-			};
-
-		}(),
-
-		makeRotationFromEuler: function ( euler ) {
-
-			if ( ! ( euler && euler.isEuler ) ) {
-
-				console.error( 'THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );
-
-			}
-
-			var te = this.elements;
-
-			var x = euler.x, y = euler.y, z = euler.z;
-			var a = Math.cos( x ), b = Math.sin( x );
-			var c = Math.cos( y ), d = Math.sin( y );
-			var e = Math.cos( z ), f = Math.sin( z );
-
-			if ( euler.order === 'XYZ' ) {
-
-				var ae = a * e, af = a * f, be = b * e, bf = b * f;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = - c * f;
-				te[ 8 ] = d;
-
-				te[ 1 ] = af + be * d;
-				te[ 5 ] = ae - bf * d;
-				te[ 9 ] = - b * c;
-
-				te[ 2 ] = bf - ae * d;
-				te[ 6 ] = be + af * d;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'YXZ' ) {
-
-				var ce = c * e, cf = c * f, de = d * e, df = d * f;
-
-				te[ 0 ] = ce + df * b;
-				te[ 4 ] = de * b - cf;
-				te[ 8 ] = a * d;
-
-				te[ 1 ] = a * f;
-				te[ 5 ] = a * e;
-				te[ 9 ] = - b;
-
-				te[ 2 ] = cf * b - de;
-				te[ 6 ] = df + ce * b;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'ZXY' ) {
-
-				var ce = c * e, cf = c * f, de = d * e, df = d * f;
-
-				te[ 0 ] = ce - df * b;
-				te[ 4 ] = - a * f;
-				te[ 8 ] = de + cf * b;
-
-				te[ 1 ] = cf + de * b;
-				te[ 5 ] = a * e;
-				te[ 9 ] = df - ce * b;
-
-				te[ 2 ] = - a * d;
-				te[ 6 ] = b;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'ZYX' ) {
-
-				var ae = a * e, af = a * f, be = b * e, bf = b * f;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = be * d - af;
-				te[ 8 ] = ae * d + bf;
-
-				te[ 1 ] = c * f;
-				te[ 5 ] = bf * d + ae;
-				te[ 9 ] = af * d - be;
-
-				te[ 2 ] = - d;
-				te[ 6 ] = b * c;
-				te[ 10 ] = a * c;
-
-			} else if ( euler.order === 'YZX' ) {
-
-				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = bd - ac * f;
-				te[ 8 ] = bc * f + ad;
-
-				te[ 1 ] = f;
-				te[ 5 ] = a * e;
-				te[ 9 ] = - b * e;
-
-				te[ 2 ] = - d * e;
-				te[ 6 ] = ad * f + bc;
-				te[ 10 ] = ac - bd * f;
-
-			} else if ( euler.order === 'XZY' ) {
-
-				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;
-
-				te[ 0 ] = c * e;
-				te[ 4 ] = - f;
-				te[ 8 ] = d * e;
-
-				te[ 1 ] = ac * f + bd;
-				te[ 5 ] = a * e;
-				te[ 9 ] = ad * f - bc;
-
-				te[ 2 ] = bc * f - ad;
-				te[ 6 ] = b * e;
-				te[ 10 ] = bd * f + ac;
-
-			}
-
-			// last column
-			te[ 3 ] = 0;
-			te[ 7 ] = 0;
-			te[ 11 ] = 0;
-
-			// bottom row
-			te[ 12 ] = 0;
-			te[ 13 ] = 0;
-			te[ 14 ] = 0;
-			te[ 15 ] = 1;
-
-			return this;
-
-		},
-
-		makeRotationFromQuaternion: function ( q ) {
-
-			var te = this.elements;
-
-			var x = q._x, y = q._y, z = q._z, w = q._w;
-			var x2 = x + x, y2 = y + y, z2 = z + z;
-			var xx = x * x2, xy = x * y2, xz = x * z2;
-			var yy = y * y2, yz = y * z2, zz = z * z2;
-			var wx = w * x2, wy = w * y2, wz = w * z2;
-
-			te[ 0 ] = 1 - ( yy + zz );
-			te[ 4 ] = xy - wz;
-			te[ 8 ] = xz + wy;
-
-			te[ 1 ] = xy + wz;
-			te[ 5 ] = 1 - ( xx + zz );
-			te[ 9 ] = yz - wx;
-
-			te[ 2 ] = xz - wy;
-			te[ 6 ] = yz + wx;
-			te[ 10 ] = 1 - ( xx + yy );
-
-			// last column
-			te[ 3 ] = 0;
-			te[ 7 ] = 0;
-			te[ 11 ] = 0;
-
-			// bottom row
-			te[ 12 ] = 0;
-			te[ 13 ] = 0;
-			te[ 14 ] = 0;
-			te[ 15 ] = 1;
-
-			return this;
-
-		},
-
-		lookAt: function () {
-
-			var x = new Vector3();
-			var y = new Vector3();
-			var z = new Vector3();
-
-			return function lookAt( eye, target, up ) {
-
-				var te = this.elements;
-
-				z.subVectors( eye, target );
-
-				if ( z.lengthSq() === 0 ) {
-
-					// eye and target are in the same position
-
-					z.z = 1;
-
-				}
-
-				z.normalize();
-				x.crossVectors( up, z );
-
-				if ( x.lengthSq() === 0 ) {
-
-					// up and z are parallel
-
-					if ( Math.abs( up.z ) === 1 ) {
-
-						z.x += 0.0001;
-
-					} else {
-
-						z.z += 0.0001;
-
-					}
-
-					z.normalize();
-					x.crossVectors( up, z );
-
-				}
-
-				x.normalize();
-				y.crossVectors( z, x );
-
-				te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;
-				te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;
-				te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;
-
-				return this;
-
-			};
-
-		}(),
-
-		multiply: function ( m, n ) {
-
-			if ( n !== undefined ) {
-
-				console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
-				return this.multiplyMatrices( m, n );
-
-			}
-
-			return this.multiplyMatrices( this, m );
-
-		},
-
-		premultiply: function ( m ) {
-
-			return this.multiplyMatrices( m, this );
-
-		},
-
-		multiplyMatrices: function ( a, b ) {
-
-			var ae = a.elements;
-			var be = b.elements;
-			var te = this.elements;
-
-			var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
-			var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
-			var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
-			var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];
-
-			var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
-			var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
-			var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
-			var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];
-
-			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
-			te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
-			te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
-			te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
-
-			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
-			te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
-			te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
-			te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
-
-			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
-			te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
-			te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
-			te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
-
-			te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
-			te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
-			te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
-			te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( s ) {
-
-			var te = this.elements;
-
-			te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
-			te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
-			te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
-			te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;
-
-			return this;
-
-		},
-
-		applyToBufferAttribute: function () {
-
-			var v1 = new Vector3();
-
-			return function applyToBufferAttribute( attribute ) {
-
-				for ( var i = 0, l = attribute.count; i < l; i ++ ) {
-
-					v1.x = attribute.getX( i );
-					v1.y = attribute.getY( i );
-					v1.z = attribute.getZ( i );
-
-					v1.applyMatrix4( this );
-
-					attribute.setXYZ( i, v1.x, v1.y, v1.z );
-
-				}
-
-				return attribute;
-
-			};
-
-		}(),
-
-		determinant: function () {
-
-			var te = this.elements;
-
-			var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
-			var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
-			var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
-			var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];
-
-			//TODO: make this more efficient
-			//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
-
-			return (
-				n41 * (
-					+ n14 * n23 * n32
-					 - n13 * n24 * n32
-					 - n14 * n22 * n33
-					 + n12 * n24 * n33
-					 + n13 * n22 * n34
-					 - n12 * n23 * n34
-				) +
-				n42 * (
-					+ n11 * n23 * n34
-					 - n11 * n24 * n33
-					 + n14 * n21 * n33
-					 - n13 * n21 * n34
-					 + n13 * n24 * n31
-					 - n14 * n23 * n31
-				) +
-				n43 * (
-					+ n11 * n24 * n32
-					 - n11 * n22 * n34
-					 - n14 * n21 * n32
-					 + n12 * n21 * n34
-					 + n14 * n22 * n31
-					 - n12 * n24 * n31
-				) +
-				n44 * (
-					- n13 * n22 * n31
-					 - n11 * n23 * n32
-					 + n11 * n22 * n33
-					 + n13 * n21 * n32
-					 - n12 * n21 * n33
-					 + n12 * n23 * n31
-				)
-
-			);
-
-		},
-
-		transpose: function () {
-
-			var te = this.elements;
-			var tmp;
-
-			tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
-			tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
-			tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;
-
-			tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
-			tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
-			tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;
-
-			return this;
-
-		},
-
-		setPosition: function ( v ) {
-
-			var te = this.elements;
-
-			te[ 12 ] = v.x;
-			te[ 13 ] = v.y;
-			te[ 14 ] = v.z;
-
-			return this;
-
-		},
-
-		getInverse: function ( m, throwOnDegenerate ) {
-
-			// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
-			var te = this.elements,
-				me = m.elements,
-
-				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],
-				n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],
-				n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],
-				n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],
-
-				t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
-				t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
-				t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
-				t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
-
-			var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
-
-			if ( det === 0 ) {
-
-				var msg = "THREE.Matrix4: .getInverse() can't invert matrix, determinant is 0";
-
-				if ( throwOnDegenerate === true ) {
-
-					throw new Error( msg );
-
-				} else {
-
-					console.warn( msg );
-
-				}
-
-				return this.identity();
-
-			}
-
-			var detInv = 1 / det;
-
-			te[ 0 ] = t11 * detInv;
-			te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
-			te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
-			te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;
-
-			te[ 4 ] = t12 * detInv;
-			te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
-			te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
-			te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;
-
-			te[ 8 ] = t13 * detInv;
-			te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
-			te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
-			te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;
-
-			te[ 12 ] = t14 * detInv;
-			te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
-			te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
-			te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;
-
-			return this;
-
-		},
-
-		scale: function ( v ) {
-
-			var te = this.elements;
-			var x = v.x, y = v.y, z = v.z;
-
-			te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
-			te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
-			te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
-			te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;
-
-			return this;
-
-		},
-
-		getMaxScaleOnAxis: function () {
-
-			var te = this.elements;
-
-			var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
-			var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
-			var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];
-
-			return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );
-
-		},
-
-		makeTranslation: function ( x, y, z ) {
-
-			this.set(
-
-				1, 0, 0, x,
-				0, 1, 0, y,
-				0, 0, 1, z,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationX: function ( theta ) {
-
-			var c = Math.cos( theta ), s = Math.sin( theta );
-
-			this.set(
-
-				1, 0, 0, 0,
-				0, c, - s, 0,
-				0, s, c, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationY: function ( theta ) {
-
-			var c = Math.cos( theta ), s = Math.sin( theta );
-
-			this.set(
-
-				 c, 0, s, 0,
-				 0, 1, 0, 0,
-				- s, 0, c, 0,
-				 0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationZ: function ( theta ) {
-
-			var c = Math.cos( theta ), s = Math.sin( theta );
-
-			this.set(
-
-				c, - s, 0, 0,
-				s, c, 0, 0,
-				0, 0, 1, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeRotationAxis: function ( axis, angle ) {
-
-			// Based on http://www.gamedev.net/reference/articles/article1199.asp
-
-			var c = Math.cos( angle );
-			var s = Math.sin( angle );
-			var t = 1 - c;
-			var x = axis.x, y = axis.y, z = axis.z;
-			var tx = t * x, ty = t * y;
-
-			this.set(
-
-				tx * x + c, tx * y - s * z, tx * z + s * y, 0,
-				tx * y + s * z, ty * y + c, ty * z - s * x, 0,
-				tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
-				0, 0, 0, 1
-
-			);
-
-			 return this;
-
-		},
-
-		makeScale: function ( x, y, z ) {
-
-			this.set(
-
-				x, 0, 0, 0,
-				0, y, 0, 0,
-				0, 0, z, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		makeShear: function ( x, y, z ) {
-
-			this.set(
-
-				1, y, z, 0,
-				x, 1, z, 0,
-				x, y, 1, 0,
-				0, 0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		compose: function ( position, quaternion, scale ) {
-
-			this.makeRotationFromQuaternion( quaternion );
-			this.scale( scale );
-			this.setPosition( position );
-
-			return this;
-
-		},
-
-		decompose: function () {
-
-			var vector = new Vector3();
-			var matrix = new Matrix4();
-
-			return function decompose( position, quaternion, scale ) {
-
-				var te = this.elements;
-
-				var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
-				var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
-				var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();
-
-				// if determine is negative, we need to invert one scale
-				var det = this.determinant();
-				if ( det < 0 ) sx = - sx;
-
-				position.x = te[ 12 ];
-				position.y = te[ 13 ];
-				position.z = te[ 14 ];
-
-				// scale the rotation part
-				matrix.copy( this );
-
-				var invSX = 1 / sx;
-				var invSY = 1 / sy;
-				var invSZ = 1 / sz;
-
-				matrix.elements[ 0 ] *= invSX;
-				matrix.elements[ 1 ] *= invSX;
-				matrix.elements[ 2 ] *= invSX;
-
-				matrix.elements[ 4 ] *= invSY;
-				matrix.elements[ 5 ] *= invSY;
-				matrix.elements[ 6 ] *= invSY;
-
-				matrix.elements[ 8 ] *= invSZ;
-				matrix.elements[ 9 ] *= invSZ;
-				matrix.elements[ 10 ] *= invSZ;
-
-				quaternion.setFromRotationMatrix( matrix );
-
-				scale.x = sx;
-				scale.y = sy;
-				scale.z = sz;
-
-				return this;
-
-			};
-
-		}(),
-
-		makePerspective: function ( left, right, top, bottom, near, far ) {
-
-			if ( far === undefined ) {
-
-				console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );
-
-			}
-
-			var te = this.elements;
-			var x = 2 * near / ( right - left );
-			var y = 2 * near / ( top - bottom );
-
-			var a = ( right + left ) / ( right - left );
-			var b = ( top + bottom ) / ( top - bottom );
-			var c = - ( far + near ) / ( far - near );
-			var d = - 2 * far * near / ( far - near );
-
-			te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
-			te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
-			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
-			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;
-
-			return this;
-
-		},
-
-		makeOrthographic: function ( left, right, top, bottom, near, far ) {
-
-			var te = this.elements;
-			var w = 1.0 / ( right - left );
-			var h = 1.0 / ( top - bottom );
-			var p = 1.0 / ( far - near );
-
-			var x = ( right + left ) * w;
-			var y = ( top + bottom ) * h;
-			var z = ( far + near ) * p;
-
-			te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
-			te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
-			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
-			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;
-
-			return this;
-
-		},
-
-		equals: function ( matrix ) {
-
-			var te = this.elements;
-			var me = matrix.elements;
-
-			for ( var i = 0; i < 16; i ++ ) {
-
-				if ( te[ i ] !== me[ i ] ) return false;
-
-			}
-
-			return true;
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			for ( var i = 0; i < 16; i ++ ) {
-
-				this.elements[ i ] = array[ i + offset ];
-
-			}
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			var te = this.elements;
-
-			array[ offset ] = te[ 0 ];
-			array[ offset + 1 ] = te[ 1 ];
-			array[ offset + 2 ] = te[ 2 ];
-			array[ offset + 3 ] = te[ 3 ];
-
-			array[ offset + 4 ] = te[ 4 ];
-			array[ offset + 5 ] = te[ 5 ];
-			array[ offset + 6 ] = te[ 6 ];
-			array[ offset + 7 ] = te[ 7 ];
-
-			array[ offset + 8 ] = te[ 8 ];
-			array[ offset + 9 ] = te[ 9 ];
-			array[ offset + 10 ] = te[ 10 ];
-			array[ offset + 11 ] = te[ 11 ];
-
-			array[ offset + 12 ] = te[ 12 ];
-			array[ offset + 13 ] = te[ 13 ];
-			array[ offset + 14 ] = te[ 14 ];
-			array[ offset + 15 ] = te[ 15 ];
-
-			return array;
-
-		}
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Quaternion( x, y, z, w ) {
-
-		this._x = x || 0;
-		this._y = y || 0;
-		this._z = z || 0;
-		this._w = ( w !== undefined ) ? w : 1;
-
-	}
-
-	Object.assign( Quaternion, {
-
-		slerp: function ( qa, qb, qm, t ) {
-
-			return qm.copy( qa ).slerp( qb, t );
-
-		},
-
-		slerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {
-
-			// fuzz-free, array-based Quaternion SLERP operation
-
-			var x0 = src0[ srcOffset0 + 0 ],
-				y0 = src0[ srcOffset0 + 1 ],
-				z0 = src0[ srcOffset0 + 2 ],
-				w0 = src0[ srcOffset0 + 3 ],
-
-				x1 = src1[ srcOffset1 + 0 ],
-				y1 = src1[ srcOffset1 + 1 ],
-				z1 = src1[ srcOffset1 + 2 ],
-				w1 = src1[ srcOffset1 + 3 ];
-
-			if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {
-
-				var s = 1 - t,
-
-					cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,
-
-					dir = ( cos >= 0 ? 1 : - 1 ),
-					sqrSin = 1 - cos * cos;
-
-				// Skip the Slerp for tiny steps to avoid numeric problems:
-				if ( sqrSin > Number.EPSILON ) {
-
-					var sin = Math.sqrt( sqrSin ),
-						len = Math.atan2( sin, cos * dir );
-
-					s = Math.sin( s * len ) / sin;
-					t = Math.sin( t * len ) / sin;
-
-				}
-
-				var tDir = t * dir;
-
-				x0 = x0 * s + x1 * tDir;
-				y0 = y0 * s + y1 * tDir;
-				z0 = z0 * s + z1 * tDir;
-				w0 = w0 * s + w1 * tDir;
-
-				// Normalize in case we just did a lerp:
-				if ( s === 1 - t ) {
-
-					var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );
-
-					x0 *= f;
-					y0 *= f;
-					z0 *= f;
-					w0 *= f;
-
-				}
-
-			}
-
-			dst[ dstOffset ] = x0;
-			dst[ dstOffset + 1 ] = y0;
-			dst[ dstOffset + 2 ] = z0;
-			dst[ dstOffset + 3 ] = w0;
-
-		}
-
-	} );
-
-	Object.defineProperties( Quaternion.prototype, {
-
-		x: {
-
-			get: function () {
-
-				return this._x;
-
-			},
-
-			set: function ( value ) {
-
-				this._x = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		y: {
-
-			get: function () {
-
-				return this._y;
-
-			},
-
-			set: function ( value ) {
-
-				this._y = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		z: {
-
-			get: function () {
-
-				return this._z;
-
-			},
-
-			set: function ( value ) {
-
-				this._z = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		w: {
-
-			get: function () {
-
-				return this._w;
-
-			},
-
-			set: function ( value ) {
-
-				this._w = value;
-				this.onChangeCallback();
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( Quaternion.prototype, {
-
-		set: function ( x, y, z, w ) {
-
-			this._x = x;
-			this._y = y;
-			this._z = z;
-			this._w = w;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this._x, this._y, this._z, this._w );
-
-		},
-
-		copy: function ( quaternion ) {
-
-			this._x = quaternion.x;
-			this._y = quaternion.y;
-			this._z = quaternion.z;
-			this._w = quaternion.w;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromEuler: function ( euler, update ) {
-
-			if ( ! ( euler && euler.isEuler ) ) {
-
-				throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );
-
-			}
-
-			var x = euler._x, y = euler._y, z = euler._z, order = euler.order;
-
-			// http://www.mathworks.com/matlabcentral/fileexchange/
-			// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
-			//	content/SpinCalc.m
-
-			var cos = Math.cos;
-			var sin = Math.sin;
-
-			var c1 = cos( x / 2 );
-			var c2 = cos( y / 2 );
-			var c3 = cos( z / 2 );
-
-			var s1 = sin( x / 2 );
-			var s2 = sin( y / 2 );
-			var s3 = sin( z / 2 );
-
-			if ( order === 'XYZ' ) {
-
-				this._x = s1 * c2 * c3 + c1 * s2 * s3;
-				this._y = c1 * s2 * c3 - s1 * c2 * s3;
-				this._z = c1 * c2 * s3 + s1 * s2 * c3;
-				this._w = c1 * c2 * c3 - s1 * s2 * s3;
-
-			} else if ( order === 'YXZ' ) {
-
-				this._x = s1 * c2 * c3 + c1 * s2 * s3;
-				this._y = c1 * s2 * c3 - s1 * c2 * s3;
-				this._z = c1 * c2 * s3 - s1 * s2 * c3;
-				this._w = c1 * c2 * c3 + s1 * s2 * s3;
-
-			} else if ( order === 'ZXY' ) {
-
-				this._x = s1 * c2 * c3 - c1 * s2 * s3;
-				this._y = c1 * s2 * c3 + s1 * c2 * s3;
-				this._z = c1 * c2 * s3 + s1 * s2 * c3;
-				this._w = c1 * c2 * c3 - s1 * s2 * s3;
-
-			} else if ( order === 'ZYX' ) {
-
-				this._x = s1 * c2 * c3 - c1 * s2 * s3;
-				this._y = c1 * s2 * c3 + s1 * c2 * s3;
-				this._z = c1 * c2 * s3 - s1 * s2 * c3;
-				this._w = c1 * c2 * c3 + s1 * s2 * s3;
-
-			} else if ( order === 'YZX' ) {
-
-				this._x = s1 * c2 * c3 + c1 * s2 * s3;
-				this._y = c1 * s2 * c3 + s1 * c2 * s3;
-				this._z = c1 * c2 * s3 - s1 * s2 * c3;
-				this._w = c1 * c2 * c3 - s1 * s2 * s3;
-
-			} else if ( order === 'XZY' ) {
-
-				this._x = s1 * c2 * c3 - c1 * s2 * s3;
-				this._y = c1 * s2 * c3 - s1 * c2 * s3;
-				this._z = c1 * c2 * s3 + s1 * s2 * c3;
-				this._w = c1 * c2 * c3 + s1 * s2 * s3;
-
-			}
-
-			if ( update !== false ) this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromAxisAngle: function ( axis, angle ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
-
-			// assumes axis is normalized
-
-			var halfAngle = angle / 2, s = Math.sin( halfAngle );
-
-			this._x = axis.x * s;
-			this._y = axis.y * s;
-			this._z = axis.z * s;
-			this._w = Math.cos( halfAngle );
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromRotationMatrix: function ( m ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			var te = m.elements,
-
-				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
-				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
-				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],
-
-				trace = m11 + m22 + m33,
-				s;
-
-			if ( trace > 0 ) {
-
-				s = 0.5 / Math.sqrt( trace + 1.0 );
-
-				this._w = 0.25 / s;
-				this._x = ( m32 - m23 ) * s;
-				this._y = ( m13 - m31 ) * s;
-				this._z = ( m21 - m12 ) * s;
-
-			} else if ( m11 > m22 && m11 > m33 ) {
-
-				s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );
-
-				this._w = ( m32 - m23 ) / s;
-				this._x = 0.25 * s;
-				this._y = ( m12 + m21 ) / s;
-				this._z = ( m13 + m31 ) / s;
-
-			} else if ( m22 > m33 ) {
-
-				s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );
-
-				this._w = ( m13 - m31 ) / s;
-				this._x = ( m12 + m21 ) / s;
-				this._y = 0.25 * s;
-				this._z = ( m23 + m32 ) / s;
-
-			} else {
-
-				s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );
-
-				this._w = ( m21 - m12 ) / s;
-				this._x = ( m13 + m31 ) / s;
-				this._y = ( m23 + m32 ) / s;
-				this._z = 0.25 * s;
-
-			}
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromUnitVectors: function () {
-
-			// assumes direction vectors vFrom and vTo are normalized
-
-			var v1 = new Vector3();
-			var r;
-
-			var EPS = 0.000001;
-
-			return function setFromUnitVectors( vFrom, vTo ) {
-
-				if ( v1 === undefined ) v1 = new Vector3();
-
-				r = vFrom.dot( vTo ) + 1;
-
-				if ( r < EPS ) {
-
-					r = 0;
-
-					if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {
-
-						v1.set( - vFrom.y, vFrom.x, 0 );
-
-					} else {
-
-						v1.set( 0, - vFrom.z, vFrom.y );
-
-					}
-
-				} else {
-
-					v1.crossVectors( vFrom, vTo );
-
-				}
-
-				this._x = v1.x;
-				this._y = v1.y;
-				this._z = v1.z;
-				this._w = r;
-
-				return this.normalize();
-
-			};
-
-		}(),
-
-		inverse: function () {
-
-			// quaternion is assumed to have unit length
-
-			return this.conjugate();
-
-		},
-
-		conjugate: function () {
-
-			this._x *= - 1;
-			this._y *= - 1;
-			this._z *= - 1;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
-
-		},
-
-		lengthSq: function () {
-
-			return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );
-
-		},
-
-		normalize: function () {
-
-			var l = this.length();
-
-			if ( l === 0 ) {
-
-				this._x = 0;
-				this._y = 0;
-				this._z = 0;
-				this._w = 1;
-
-			} else {
-
-				l = 1 / l;
-
-				this._x = this._x * l;
-				this._y = this._y * l;
-				this._z = this._z * l;
-				this._w = this._w * l;
-
-			}
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		multiply: function ( q, p ) {
-
-			if ( p !== undefined ) {
-
-				console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
-				return this.multiplyQuaternions( q, p );
-
-			}
-
-			return this.multiplyQuaternions( this, q );
-
-		},
-
-		premultiply: function ( q ) {
-
-			return this.multiplyQuaternions( q, this );
-
-		},
-
-		multiplyQuaternions: function ( a, b ) {
-
-			// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
-
-			var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
-			var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;
-
-			this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
-			this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
-			this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
-			this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		slerp: function ( qb, t ) {
-
-			if ( t === 0 ) return this;
-			if ( t === 1 ) return this.copy( qb );
-
-			var x = this._x, y = this._y, z = this._z, w = this._w;
-
-			// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
-
-			var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
-
-			if ( cosHalfTheta < 0 ) {
-
-				this._w = - qb._w;
-				this._x = - qb._x;
-				this._y = - qb._y;
-				this._z = - qb._z;
-
-				cosHalfTheta = - cosHalfTheta;
-
-			} else {
-
-				this.copy( qb );
-
-			}
-
-			if ( cosHalfTheta >= 1.0 ) {
-
-				this._w = w;
-				this._x = x;
-				this._y = y;
-				this._z = z;
-
-				return this;
-
-			}
-
-			var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );
-
-			if ( Math.abs( sinHalfTheta ) < 0.001 ) {
-
-				this._w = 0.5 * ( w + this._w );
-				this._x = 0.5 * ( x + this._x );
-				this._y = 0.5 * ( y + this._y );
-				this._z = 0.5 * ( z + this._z );
-
-				return this;
-
-			}
-
-			var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
-			var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
-				ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;
-
-			this._w = ( w * ratioA + this._w * ratioB );
-			this._x = ( x * ratioA + this._x * ratioB );
-			this._y = ( y * ratioA + this._y * ratioB );
-			this._z = ( z * ratioA + this._z * ratioB );
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		equals: function ( quaternion ) {
-
-			return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this._x = array[ offset ];
-			this._y = array[ offset + 1 ];
-			this._z = array[ offset + 2 ];
-			this._w = array[ offset + 3 ];
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this._x;
-			array[ offset + 1 ] = this._y;
-			array[ offset + 2 ] = this._z;
-			array[ offset + 3 ] = this._w;
-
-			return array;
-
-		},
-
-		onChange: function ( callback ) {
-
-			this.onChangeCallback = callback;
-
-			return this;
-
-		},
-
-		onChangeCallback: function () {}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author kile / http://kile.stravaganza.org/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author egraether / http://egraether.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Vector3( x, y, z ) {
-
-		this.x = x || 0;
-		this.y = y || 0;
-		this.z = z || 0;
-
-	}
-
-	Object.assign( Vector3.prototype, {
-
-		isVector3: true,
-
-		set: function ( x, y, z ) {
-
-			this.x = x;
-			this.y = y;
-			this.z = z;
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.x = scalar;
-			this.y = scalar;
-			this.z = scalar;
-
-			return this;
-
-		},
-
-		setX: function ( x ) {
-
-			this.x = x;
-
-			return this;
-
-		},
-
-		setY: function ( y ) {
-
-			this.y = y;
-
-			return this;
-
-		},
-
-		setZ: function ( z ) {
-
-			this.z = z;
-
-			return this;
-
-		},
-
-		setComponent: function ( index, value ) {
-
-			switch ( index ) {
-
-				case 0: this.x = value; break;
-				case 1: this.y = value; break;
-				case 2: this.z = value; break;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-			return this;
-
-		},
-
-		getComponent: function ( index ) {
-
-			switch ( index ) {
-
-				case 0: return this.x;
-				case 1: return this.y;
-				case 2: return this.z;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.x, this.y, this.z );
-
-		},
-
-		copy: function ( v ) {
-
-			this.x = v.x;
-			this.y = v.y;
-			this.z = v.z;
-
-			return this;
-
-		},
-
-		add: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
-				return this.addVectors( v, w );
-
-			}
-
-			this.x += v.x;
-			this.y += v.y;
-			this.z += v.z;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.x += s;
-			this.y += s;
-			this.z += s;
-
-			return this;
-
-		},
-
-		addVectors: function ( a, b ) {
-
-			this.x = a.x + b.x;
-			this.y = a.y + b.y;
-			this.z = a.z + b.z;
-
-			return this;
-
-		},
-
-		addScaledVector: function ( v, s ) {
-
-			this.x += v.x * s;
-			this.y += v.y * s;
-			this.z += v.z * s;
-
-			return this;
-
-		},
-
-		sub: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
-				return this.subVectors( v, w );
-
-			}
-
-			this.x -= v.x;
-			this.y -= v.y;
-			this.z -= v.z;
-
-			return this;
-
-		},
-
-		subScalar: function ( s ) {
-
-			this.x -= s;
-			this.y -= s;
-			this.z -= s;
-
-			return this;
-
-		},
-
-		subVectors: function ( a, b ) {
-
-			this.x = a.x - b.x;
-			this.y = a.y - b.y;
-			this.z = a.z - b.z;
-
-			return this;
-
-		},
-
-		multiply: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
-				return this.multiplyVectors( v, w );
-
-			}
-
-			this.x *= v.x;
-			this.y *= v.y;
-			this.z *= v.z;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( scalar ) {
-
-			this.x *= scalar;
-			this.y *= scalar;
-			this.z *= scalar;
-
-			return this;
-
-		},
-
-		multiplyVectors: function ( a, b ) {
-
-			this.x = a.x * b.x;
-			this.y = a.y * b.y;
-			this.z = a.z * b.z;
-
-			return this;
-
-		},
-
-		applyEuler: function () {
-
-			var quaternion = new Quaternion();
-
-			return function applyEuler( euler ) {
-
-				if ( ! ( euler && euler.isEuler ) ) {
-
-					console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );
-
-				}
-
-				return this.applyQuaternion( quaternion.setFromEuler( euler ) );
-
-			};
-
-		}(),
-
-		applyAxisAngle: function () {
-
-			var quaternion = new Quaternion();
-
-			return function applyAxisAngle( axis, angle ) {
-
-				return this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );
-
-			};
-
-		}(),
-
-		applyMatrix3: function ( m ) {
-
-			var x = this.x, y = this.y, z = this.z;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
-			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
-			this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;
-
-			return this;
-
-		},
-
-		applyMatrix4: function ( m ) {
-
-			var x = this.x, y = this.y, z = this.z;
-			var e = m.elements;
-
-			var w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );
-
-			this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * w;
-			this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * w;
-			this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;
-
-			return this;
-
-		},
-
-		applyQuaternion: function ( q ) {
-
-			var x = this.x, y = this.y, z = this.z;
-			var qx = q.x, qy = q.y, qz = q.z, qw = q.w;
-
-			// calculate quat * vector
-
-			var ix = qw * x + qy * z - qz * y;
-			var iy = qw * y + qz * x - qx * z;
-			var iz = qw * z + qx * y - qy * x;
-			var iw = - qx * x - qy * y - qz * z;
-
-			// calculate result * inverse quat
-
-			this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
-			this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
-			this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;
-
-			return this;
-
-		},
-
-		project: function () {
-
-			var matrix = new Matrix4();
-
-			return function project( camera ) {
-
-				matrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );
-				return this.applyMatrix4( matrix );
-
-			};
-
-		}(),
-
-		unproject: function () {
-
-			var matrix = new Matrix4();
-
-			return function unproject( camera ) {
-
-				matrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );
-				return this.applyMatrix4( matrix );
-
-			};
-
-		}(),
-
-		transformDirection: function ( m ) {
-
-			// input: THREE.Matrix4 affine matrix
-			// vector interpreted as a direction
-
-			var x = this.x, y = this.y, z = this.z;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;
-			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;
-			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;
-
-			return this.normalize();
-
-		},
-
-		divide: function ( v ) {
-
-			this.x /= v.x;
-			this.y /= v.y;
-			this.z /= v.z;
-
-			return this;
-
-		},
-
-		divideScalar: function ( scalar ) {
-
-			return this.multiplyScalar( 1 / scalar );
-
-		},
-
-		min: function ( v ) {
-
-			this.x = Math.min( this.x, v.x );
-			this.y = Math.min( this.y, v.y );
-			this.z = Math.min( this.z, v.z );
-
-			return this;
-
-		},
-
-		max: function ( v ) {
-
-			this.x = Math.max( this.x, v.x );
-			this.y = Math.max( this.y, v.y );
-			this.z = Math.max( this.z, v.z );
-
-			return this;
-
-		},
-
-		clamp: function ( min, max ) {
-
-			// assumes min < max, componentwise
-
-			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
-			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
-			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
-
-			return this;
-
-		},
-
-		clampScalar: function () {
-
-			var min = new Vector3();
-			var max = new Vector3();
-
-			return function clampScalar( minVal, maxVal ) {
-
-				min.set( minVal, minVal, minVal );
-				max.set( maxVal, maxVal, maxVal );
-
-				return this.clamp( min, max );
-
-			};
-
-		}(),
-
-		clampLength: function ( min, max ) {
-
-			var length = this.length();
-
-			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
-
-		},
-
-		floor: function () {
-
-			this.x = Math.floor( this.x );
-			this.y = Math.floor( this.y );
-			this.z = Math.floor( this.z );
-
-			return this;
-
-		},
-
-		ceil: function () {
-
-			this.x = Math.ceil( this.x );
-			this.y = Math.ceil( this.y );
-			this.z = Math.ceil( this.z );
-
-			return this;
-
-		},
-
-		round: function () {
-
-			this.x = Math.round( this.x );
-			this.y = Math.round( this.y );
-			this.z = Math.round( this.z );
-
-			return this;
-
-		},
-
-		roundToZero: function () {
-
-			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
-			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
-			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.x = - this.x;
-			this.y = - this.y;
-			this.z = - this.z;
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this.x * v.x + this.y * v.y + this.z * v.z;
-
-		},
-
-		// TODO lengthSquared?
-
-		lengthSq: function () {
-
-			return this.x * this.x + this.y * this.y + this.z * this.z;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );
-
-		},
-
-		manhattanLength: function () {
-
-			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );
-
-		},
-
-		normalize: function () {
-
-			return this.divideScalar( this.length() || 1 );
-
-		},
-
-		setLength: function ( length ) {
-
-			return this.normalize().multiplyScalar( length );
-
-		},
-
-		lerp: function ( v, alpha ) {
-
-			this.x += ( v.x - this.x ) * alpha;
-			this.y += ( v.y - this.y ) * alpha;
-			this.z += ( v.z - this.z ) * alpha;
-
-			return this;
-
-		},
-
-		lerpVectors: function ( v1, v2, alpha ) {
-
-			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
-
-		},
-
-		cross: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
-				return this.crossVectors( v, w );
-
-			}
-
-			return this.crossVectors( this, v );
-
-		},
-
-		crossVectors: function ( a, b ) {
-
-			var ax = a.x, ay = a.y, az = a.z;
-			var bx = b.x, by = b.y, bz = b.z;
-
-			this.x = ay * bz - az * by;
-			this.y = az * bx - ax * bz;
-			this.z = ax * by - ay * bx;
-
-			return this;
-
-		},
-
-		projectOnVector: function ( vector ) {
-
-			var scalar = vector.dot( this ) / vector.lengthSq();
-
-			return this.copy( vector ).multiplyScalar( scalar );
-
-		},
-
-		projectOnPlane: function () {
-
-			var v1 = new Vector3();
-
-			return function projectOnPlane( planeNormal ) {
-
-				v1.copy( this ).projectOnVector( planeNormal );
-
-				return this.sub( v1 );
-
-			};
-
-		}(),
-
-		reflect: function () {
-
-			// reflect incident vector off plane orthogonal to normal
-			// normal is assumed to have unit length
-
-			var v1 = new Vector3();
-
-			return function reflect( normal ) {
-
-				return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );
-
-			};
-
-		}(),
-
-		angleTo: function ( v ) {
-
-			var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );
-
-			// clamp, to handle numerical problems
-
-			return Math.acos( _Math.clamp( theta, - 1, 1 ) );
-
-		},
-
-		distanceTo: function ( v ) {
-
-			return Math.sqrt( this.distanceToSquared( v ) );
-
-		},
-
-		distanceToSquared: function ( v ) {
-
-			var dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;
-
-			return dx * dx + dy * dy + dz * dz;
-
-		},
-
-		manhattanDistanceTo: function ( v ) {
-
-			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );
-
-		},
-
-		setFromSpherical: function ( s ) {
-
-			var sinPhiRadius = Math.sin( s.phi ) * s.radius;
-
-			this.x = sinPhiRadius * Math.sin( s.theta );
-			this.y = Math.cos( s.phi ) * s.radius;
-			this.z = sinPhiRadius * Math.cos( s.theta );
-
-			return this;
-
-		},
-
-		setFromCylindrical: function ( c ) {
-
-			this.x = c.radius * Math.sin( c.theta );
-			this.y = c.y;
-			this.z = c.radius * Math.cos( c.theta );
-
-			return this;
-
-		},
-
-		setFromMatrixPosition: function ( m ) {
-
-			var e = m.elements;
-
-			this.x = e[ 12 ];
-			this.y = e[ 13 ];
-			this.z = e[ 14 ];
-
-			return this;
-
-		},
-
-		setFromMatrixScale: function ( m ) {
-
-			var sx = this.setFromMatrixColumn( m, 0 ).length();
-			var sy = this.setFromMatrixColumn( m, 1 ).length();
-			var sz = this.setFromMatrixColumn( m, 2 ).length();
-
-			this.x = sx;
-			this.y = sy;
-			this.z = sz;
-
-			return this;
-
-		},
-
-		setFromMatrixColumn: function ( m, index ) {
-
-			return this.fromArray( m.elements, index * 4 );
-
-		},
-
-		equals: function ( v ) {
-
-			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.x = array[ offset ];
-			this.y = array[ offset + 1 ];
-			this.z = array[ offset + 2 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.x;
-			array[ offset + 1 ] = this.y;
-			array[ offset + 2 ] = this.z;
-
-			return array;
-
-		},
-
-		fromBufferAttribute: function ( attribute, index, offset ) {
-
-			if ( offset !== undefined ) {
-
-				console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );
-
-			}
-
-			this.x = attribute.getX( index );
-			this.y = attribute.getY( index );
-			this.z = attribute.getZ( index );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author bhouston / http://clara.io
-	 * @author tschw
-	 */
-
-	function Matrix3() {
-
-		this.elements = [
-
-			1, 0, 0,
-			0, 1, 0,
-			0, 0, 1
-
-		];
-
-		if ( arguments.length > 0 ) {
-
-			console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );
-
-		}
-
-	}
-
-	Object.assign( Matrix3.prototype, {
-
-		isMatrix3: true,
-
-		set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {
-
-			var te = this.elements;
-
-			te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
-			te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
-			te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;
-
-			return this;
-
-		},
-
-		identity: function () {
-
-			this.set(
-
-				1, 0, 0,
-				0, 1, 0,
-				0, 0, 1
-
-			);
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().fromArray( this.elements );
-
-		},
-
-		copy: function ( m ) {
-
-			var te = this.elements;
-			var me = m.elements;
-
-			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
-			te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
-			te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];
-
-			return this;
-
-		},
-
-		setFromMatrix4: function ( m ) {
-
-			var me = m.elements;
-
-			this.set(
-
-				me[ 0 ], me[ 4 ], me[ 8 ],
-				me[ 1 ], me[ 5 ], me[ 9 ],
-				me[ 2 ], me[ 6 ], me[ 10 ]
-
-			);
-
-			return this;
-
-		},
-
-		applyToBufferAttribute: function () {
-
-			var v1 = new Vector3();
-
-			return function applyToBufferAttribute( attribute ) {
-
-				for ( var i = 0, l = attribute.count; i < l; i ++ ) {
-
-					v1.x = attribute.getX( i );
-					v1.y = attribute.getY( i );
-					v1.z = attribute.getZ( i );
-
-					v1.applyMatrix3( this );
-
-					attribute.setXYZ( i, v1.x, v1.y, v1.z );
-
-				}
-
-				return attribute;
-
-			};
-
-		}(),
-
-		multiply: function ( m ) {
-
-			return this.multiplyMatrices( this, m );
-
-		},
-
-		premultiply: function ( m ) {
-
-			return this.multiplyMatrices( m, this );
-
-		},
-
-		multiplyMatrices: function ( a, b ) {
-
-			var ae = a.elements;
-			var be = b.elements;
-			var te = this.elements;
-
-			var a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
-			var a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
-			var a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];
-
-			var b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
-			var b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
-			var b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];
-
-			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
-			te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
-			te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;
-
-			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
-			te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
-			te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;
-
-			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
-			te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
-			te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( s ) {
-
-			var te = this.elements;
-
-			te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
-			te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
-			te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;
-
-			return this;
-
-		},
-
-		determinant: function () {
-
-			var te = this.elements;
-
-			var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
-				d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
-				g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];
-
-			return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
-
-		},
-
-		getInverse: function ( matrix, throwOnDegenerate ) {
-
-			if ( matrix && matrix.isMatrix4 ) {
-
-				console.error( "THREE.Matrix3: .getInverse() no longer takes a Matrix4 argument." );
-
-			}
-
-			var me = matrix.elements,
-				te = this.elements,
-
-				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],
-				n12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],
-				n13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],
-
-				t11 = n33 * n22 - n32 * n23,
-				t12 = n32 * n13 - n33 * n12,
-				t13 = n23 * n12 - n22 * n13,
-
-				det = n11 * t11 + n21 * t12 + n31 * t13;
-
-			if ( det === 0 ) {
-
-				var msg = "THREE.Matrix3: .getInverse() can't invert matrix, determinant is 0";
-
-				if ( throwOnDegenerate === true ) {
-
-					throw new Error( msg );
-
-				} else {
-
-					console.warn( msg );
-
-				}
-
-				return this.identity();
-
-			}
-
-			var detInv = 1 / det;
-
-			te[ 0 ] = t11 * detInv;
-			te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
-			te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;
-
-			te[ 3 ] = t12 * detInv;
-			te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
-			te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;
-
-			te[ 6 ] = t13 * detInv;
-			te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
-			te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;
-
-			return this;
-
-		},
-
-		transpose: function () {
-
-			var tmp, m = this.elements;
-
-			tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
-			tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
-			tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;
-
-			return this;
-
-		},
-
-		getNormalMatrix: function ( matrix4 ) {
-
-			return this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();
-
-		},
-
-		transposeIntoArray: function ( r ) {
-
-			var m = this.elements;
-
-			r[ 0 ] = m[ 0 ];
-			r[ 1 ] = m[ 3 ];
-			r[ 2 ] = m[ 6 ];
-			r[ 3 ] = m[ 1 ];
-			r[ 4 ] = m[ 4 ];
-			r[ 5 ] = m[ 7 ];
-			r[ 6 ] = m[ 2 ];
-			r[ 7 ] = m[ 5 ];
-			r[ 8 ] = m[ 8 ];
-
-			return this;
-
-		},
-
-		setUvTransform: function ( tx, ty, sx, sy, rotation, cx, cy ) {
-
-			var c = Math.cos( rotation );
-			var s = Math.sin( rotation );
-
-			this.set(
-				sx * c, sx * s, - sx * ( c * cx + s * cy ) + cx + tx,
-				- sy * s, sy * c, - sy * ( - s * cx + c * cy ) + cy + ty,
-				0, 0, 1
-			);
-
-		},
-
-		scale: function ( sx, sy ) {
-
-			var te = this.elements;
-
-			te[ 0 ] *= sx; te[ 3 ] *= sx; te[ 6 ] *= sx;
-			te[ 1 ] *= sy; te[ 4 ] *= sy; te[ 7 ] *= sy;
-
-			return this;
-
-		},
-
-		rotate: function ( theta ) {
-
-			var c = Math.cos( theta );
-			var s = Math.sin( theta );
-
-			var te = this.elements;
-
-			var a11 = te[ 0 ], a12 = te[ 3 ], a13 = te[ 6 ];
-			var a21 = te[ 1 ], a22 = te[ 4 ], a23 = te[ 7 ];
-
-			te[ 0 ] = c * a11 + s * a21;
-			te[ 3 ] = c * a12 + s * a22;
-			te[ 6 ] = c * a13 + s * a23;
-
-			te[ 1 ] = - s * a11 + c * a21;
-			te[ 4 ] = - s * a12 + c * a22;
-			te[ 7 ] = - s * a13 + c * a23;
-
-			return this;
-
-		},
-
-		translate: function ( tx, ty ) {
-
-			var te = this.elements;
-
-			te[ 0 ] += tx * te[ 2 ]; te[ 3 ] += tx * te[ 5 ]; te[ 6 ] += tx * te[ 8 ];
-			te[ 1 ] += ty * te[ 2 ]; te[ 4 ] += ty * te[ 5 ]; te[ 7 ] += ty * te[ 8 ];
-
-			return this;
-
-		},
-
-		equals: function ( matrix ) {
-
-			var te = this.elements;
-			var me = matrix.elements;
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				if ( te[ i ] !== me[ i ] ) return false;
-
-			}
-
-			return true;
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			for ( var i = 0; i < 9; i ++ ) {
-
-				this.elements[ i ] = array[ i + offset ];
-
-			}
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			var te = this.elements;
-
-			array[ offset ] = te[ 0 ];
-			array[ offset + 1 ] = te[ 1 ];
-			array[ offset + 2 ] = te[ 2 ];
-
-			array[ offset + 3 ] = te[ 3 ];
-			array[ offset + 4 ] = te[ 4 ];
-			array[ offset + 5 ] = te[ 5 ];
-
-			array[ offset + 6 ] = te[ 6 ];
-			array[ offset + 7 ] = te[ 7 ];
-			array[ offset + 8 ] = te[ 8 ];
-
-			return array;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author szimek / https://github.com/szimek/
-	 */
-
-	var textureId = 0;
-
-	function Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
-
-		Object.defineProperty( this, 'id', { value: textureId ++ } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-
-		this.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;
-		this.mipmaps = [];
-
-		this.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;
-
-		this.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;
-		this.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;
-
-		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
-		this.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;
-
-		this.anisotropy = anisotropy !== undefined ? anisotropy : 1;
-
-		this.format = format !== undefined ? format : RGBAFormat;
-		this.type = type !== undefined ? type : UnsignedByteType;
-
-		this.offset = new Vector2( 0, 0 );
-		this.repeat = new Vector2( 1, 1 );
-		this.center = new Vector2( 0, 0 );
-		this.rotation = 0;
-
-		this.matrixAutoUpdate = true;
-		this.matrix = new Matrix3();
-
-		this.generateMipmaps = true;
-		this.premultiplyAlpha = false;
-		this.flipY = true;
-		this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
-
-		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
-		//
-		// Also changing the encoding after already used by a Material will not automatically make the Material
-		// update.  You need to explicitly call Material.needsUpdate to trigger it to recompile.
-		this.encoding = encoding !== undefined ? encoding : LinearEncoding;
-
-		this.version = 0;
-		this.onUpdate = null;
-
-	}
-
-	Texture.DEFAULT_IMAGE = undefined;
-	Texture.DEFAULT_MAPPING = UVMapping;
-
-	Texture.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Texture,
-
-		isTexture: true,
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.name = source.name;
-
-			this.image = source.image;
-			this.mipmaps = source.mipmaps.slice( 0 );
-
-			this.mapping = source.mapping;
-
-			this.wrapS = source.wrapS;
-			this.wrapT = source.wrapT;
-
-			this.magFilter = source.magFilter;
-			this.minFilter = source.minFilter;
-
-			this.anisotropy = source.anisotropy;
-
-			this.format = source.format;
-			this.type = source.type;
-
-			this.offset.copy( source.offset );
-			this.repeat.copy( source.repeat );
-			this.center.copy( source.center );
-			this.rotation = source.rotation;
-
-			this.matrixAutoUpdate = source.matrixAutoUpdate;
-			this.matrix.copy( source.matrix );
-
-			this.generateMipmaps = source.generateMipmaps;
-			this.premultiplyAlpha = source.premultiplyAlpha;
-			this.flipY = source.flipY;
-			this.unpackAlignment = source.unpackAlignment;
-			this.encoding = source.encoding;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var isRootObject = ( meta === undefined || typeof meta === 'string' );
-
-			if ( ! isRootObject && meta.textures[ this.uuid ] !== undefined ) {
-
-				return meta.textures[ this.uuid ];
-
-			}
-
-			function getDataURL( image ) {
-
-				var canvas;
-
-				if ( image instanceof HTMLCanvasElement ) {
-
-					canvas = image;
-
-				} else {
-
-					canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
-					canvas.width = image.width;
-					canvas.height = image.height;
-
-					var context = canvas.getContext( '2d' );
-
-					if ( image instanceof ImageData ) {
-
-						context.putImageData( image, 0, 0 );
-
-					} else {
-
-						context.drawImage( image, 0, 0, image.width, image.height );
-
-					}
-
-				}
-
-				if ( canvas.width > 2048 || canvas.height > 2048 ) {
-
-					return canvas.toDataURL( 'image/jpeg', 0.6 );
-
-				} else {
-
-					return canvas.toDataURL( 'image/png' );
-
-				}
-
-			}
-
-			var output = {
-				metadata: {
-					version: 4.5,
-					type: 'Texture',
-					generator: 'Texture.toJSON'
-				},
-
-				uuid: this.uuid,
-				name: this.name,
-
-				mapping: this.mapping,
-
-				repeat: [ this.repeat.x, this.repeat.y ],
-				offset: [ this.offset.x, this.offset.y ],
-				center: [ this.center.x, this.center.y ],
-				rotation: this.rotation,
-
-				wrap: [ this.wrapS, this.wrapT ],
-
-				minFilter: this.minFilter,
-				magFilter: this.magFilter,
-				anisotropy: this.anisotropy,
-
-				flipY: this.flipY
-			};
-
-			if ( this.image !== undefined ) {
-
-				// TODO: Move to THREE.Image
-
-				var image = this.image;
-
-				if ( image.uuid === undefined ) {
-
-					image.uuid = _Math.generateUUID(); // UGH
-
-				}
-
-				if ( ! isRootObject && meta.images[ image.uuid ] === undefined ) {
-
-					meta.images[ image.uuid ] = {
-						uuid: image.uuid,
-						url: getDataURL( image )
-					};
-
-				}
-
-				output.image = image.uuid;
-
-			}
-
-			if ( ! isRootObject ) {
-
-				meta.textures[ this.uuid ] = output;
-
-			}
-
-			return output;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		},
-
-		transformUv: function ( uv ) {
-
-			if ( this.mapping !== UVMapping ) return;
-
-			uv.applyMatrix3( this.matrix );
-
-			if ( uv.x < 0 || uv.x > 1 ) {
-
-				switch ( this.wrapS ) {
-
-					case RepeatWrapping:
-
-						uv.x = uv.x - Math.floor( uv.x );
-						break;
-
-					case ClampToEdgeWrapping:
-
-						uv.x = uv.x < 0 ? 0 : 1;
-						break;
-
-					case MirroredRepeatWrapping:
-
-						if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {
-
-							uv.x = Math.ceil( uv.x ) - uv.x;
-
-						} else {
-
-							uv.x = uv.x - Math.floor( uv.x );
-
-						}
-						break;
-
-				}
-
-			}
-
-			if ( uv.y < 0 || uv.y > 1 ) {
-
-				switch ( this.wrapT ) {
-
-					case RepeatWrapping:
-
-						uv.y = uv.y - Math.floor( uv.y );
-						break;
-
-					case ClampToEdgeWrapping:
-
-						uv.y = uv.y < 0 ? 0 : 1;
-						break;
-
-					case MirroredRepeatWrapping:
-
-						if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {
-
-							uv.y = Math.ceil( uv.y ) - uv.y;
-
-						} else {
-
-							uv.y = uv.y - Math.floor( uv.y );
-
-						}
-						break;
-
-				}
-
-			}
-
-			if ( this.flipY ) {
-
-				uv.y = 1 - uv.y;
-
-			}
-
-		}
-
-	} );
-
-	Object.defineProperty( Texture.prototype, "needsUpdate", {
-
-		set: function ( value ) {
-
-			if ( value === true ) this.version ++;
-
-		}
-
-	} );
-
-	/**
-	 * @author supereggbert / http://www.paulbrunt.co.uk/
-	 * @author philogb / http://blog.thejit.org/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author egraether / http://egraether.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Vector4( x, y, z, w ) {
-
-		this.x = x || 0;
-		this.y = y || 0;
-		this.z = z || 0;
-		this.w = ( w !== undefined ) ? w : 1;
-
-	}
-
-	Object.assign( Vector4.prototype, {
-
-		isVector4: true,
-
-		set: function ( x, y, z, w ) {
-
-			this.x = x;
-			this.y = y;
-			this.z = z;
-			this.w = w;
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.x = scalar;
-			this.y = scalar;
-			this.z = scalar;
-			this.w = scalar;
-
-			return this;
-
-		},
-
-		setX: function ( x ) {
-
-			this.x = x;
-
-			return this;
-
-		},
-
-		setY: function ( y ) {
-
-			this.y = y;
-
-			return this;
-
-		},
-
-		setZ: function ( z ) {
-
-			this.z = z;
-
-			return this;
-
-		},
-
-		setW: function ( w ) {
-
-			this.w = w;
-
-			return this;
-
-		},
-
-		setComponent: function ( index, value ) {
-
-			switch ( index ) {
-
-				case 0: this.x = value; break;
-				case 1: this.y = value; break;
-				case 2: this.z = value; break;
-				case 3: this.w = value; break;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-			return this;
-
-		},
-
-		getComponent: function ( index ) {
-
-			switch ( index ) {
-
-				case 0: return this.x;
-				case 1: return this.y;
-				case 2: return this.z;
-				case 3: return this.w;
-				default: throw new Error( 'index is out of range: ' + index );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.x, this.y, this.z, this.w );
-
-		},
-
-		copy: function ( v ) {
-
-			this.x = v.x;
-			this.y = v.y;
-			this.z = v.z;
-			this.w = ( v.w !== undefined ) ? v.w : 1;
-
-			return this;
-
-		},
-
-		add: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
-				return this.addVectors( v, w );
-
-			}
-
-			this.x += v.x;
-			this.y += v.y;
-			this.z += v.z;
-			this.w += v.w;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.x += s;
-			this.y += s;
-			this.z += s;
-			this.w += s;
-
-			return this;
-
-		},
-
-		addVectors: function ( a, b ) {
-
-			this.x = a.x + b.x;
-			this.y = a.y + b.y;
-			this.z = a.z + b.z;
-			this.w = a.w + b.w;
-
-			return this;
-
-		},
-
-		addScaledVector: function ( v, s ) {
-
-			this.x += v.x * s;
-			this.y += v.y * s;
-			this.z += v.z * s;
-			this.w += v.w * s;
-
-			return this;
-
-		},
-
-		sub: function ( v, w ) {
-
-			if ( w !== undefined ) {
-
-				console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
-				return this.subVectors( v, w );
-
-			}
-
-			this.x -= v.x;
-			this.y -= v.y;
-			this.z -= v.z;
-			this.w -= v.w;
-
-			return this;
-
-		},
-
-		subScalar: function ( s ) {
-
-			this.x -= s;
-			this.y -= s;
-			this.z -= s;
-			this.w -= s;
-
-			return this;
-
-		},
-
-		subVectors: function ( a, b ) {
-
-			this.x = a.x - b.x;
-			this.y = a.y - b.y;
-			this.z = a.z - b.z;
-			this.w = a.w - b.w;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( scalar ) {
-
-			this.x *= scalar;
-			this.y *= scalar;
-			this.z *= scalar;
-			this.w *= scalar;
-
-			return this;
-
-		},
-
-		applyMatrix4: function ( m ) {
-
-			var x = this.x, y = this.y, z = this.z, w = this.w;
-			var e = m.elements;
-
-			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
-			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
-			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
-			this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;
-
-			return this;
-
-		},
-
-		divideScalar: function ( scalar ) {
-
-			return this.multiplyScalar( 1 / scalar );
-
-		},
-
-		setAxisAngleFromQuaternion: function ( q ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
-
-			// q is assumed to be normalized
-
-			this.w = 2 * Math.acos( q.w );
-
-			var s = Math.sqrt( 1 - q.w * q.w );
-
-			if ( s < 0.0001 ) {
-
-				this.x = 1;
-				this.y = 0;
-				this.z = 0;
-
-			} else {
-
-				this.x = q.x / s;
-				this.y = q.y / s;
-				this.z = q.z / s;
-
-			}
-
-			return this;
-
-		},
-
-		setAxisAngleFromRotationMatrix: function ( m ) {
-
-			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			var angle, x, y, z,		// variables for result
-				epsilon = 0.01,		// margin to allow for rounding errors
-				epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees
-
-				te = m.elements,
-
-				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
-				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
-				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
-
-			if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
-			     ( Math.abs( m13 - m31 ) < epsilon ) &&
-			     ( Math.abs( m23 - m32 ) < epsilon ) ) {
-
-				// singularity found
-				// first check for identity matrix which must have +1 for all terms
-				// in leading diagonal and zero in other terms
-
-				if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
-				     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
-				     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
-				     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {
-
-					// this singularity is identity matrix so angle = 0
-
-					this.set( 1, 0, 0, 0 );
-
-					return this; // zero angle, arbitrary axis
-
-				}
-
-				// otherwise this singularity is angle = 180
-
-				angle = Math.PI;
-
-				var xx = ( m11 + 1 ) / 2;
-				var yy = ( m22 + 1 ) / 2;
-				var zz = ( m33 + 1 ) / 2;
-				var xy = ( m12 + m21 ) / 4;
-				var xz = ( m13 + m31 ) / 4;
-				var yz = ( m23 + m32 ) / 4;
-
-				if ( ( xx > yy ) && ( xx > zz ) ) {
-
-					// m11 is the largest diagonal term
-
-					if ( xx < epsilon ) {
-
-						x = 0;
-						y = 0.707106781;
-						z = 0.707106781;
-
-					} else {
-
-						x = Math.sqrt( xx );
-						y = xy / x;
-						z = xz / x;
-
-					}
-
-				} else if ( yy > zz ) {
-
-					// m22 is the largest diagonal term
-
-					if ( yy < epsilon ) {
-
-						x = 0.707106781;
-						y = 0;
-						z = 0.707106781;
-
-					} else {
-
-						y = Math.sqrt( yy );
-						x = xy / y;
-						z = yz / y;
-
-					}
-
-				} else {
-
-					// m33 is the largest diagonal term so base result on this
-
-					if ( zz < epsilon ) {
-
-						x = 0.707106781;
-						y = 0.707106781;
-						z = 0;
-
-					} else {
-
-						z = Math.sqrt( zz );
-						x = xz / z;
-						y = yz / z;
-
-					}
-
-				}
-
-				this.set( x, y, z, angle );
-
-				return this; // return 180 deg rotation
-
-			}
-
-			// as we have reached here there are no singularities so we can handle normally
-
-			var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
-			                   ( m13 - m31 ) * ( m13 - m31 ) +
-			                   ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize
-
-			if ( Math.abs( s ) < 0.001 ) s = 1;
-
-			// prevent divide by zero, should not happen if matrix is orthogonal and should be
-			// caught by singularity test above, but I've left it in just in case
-
-			this.x = ( m32 - m23 ) / s;
-			this.y = ( m13 - m31 ) / s;
-			this.z = ( m21 - m12 ) / s;
-			this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );
-
-			return this;
-
-		},
-
-		min: function ( v ) {
-
-			this.x = Math.min( this.x, v.x );
-			this.y = Math.min( this.y, v.y );
-			this.z = Math.min( this.z, v.z );
-			this.w = Math.min( this.w, v.w );
-
-			return this;
-
-		},
-
-		max: function ( v ) {
-
-			this.x = Math.max( this.x, v.x );
-			this.y = Math.max( this.y, v.y );
-			this.z = Math.max( this.z, v.z );
-			this.w = Math.max( this.w, v.w );
-
-			return this;
-
-		},
-
-		clamp: function ( min, max ) {
-
-			// assumes min < max, componentwise
-
-			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
-			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
-			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
-			this.w = Math.max( min.w, Math.min( max.w, this.w ) );
-
-			return this;
-
-		},
-
-		clampScalar: function () {
-
-			var min, max;
-
-			return function clampScalar( minVal, maxVal ) {
-
-				if ( min === undefined ) {
-
-					min = new Vector4();
-					max = new Vector4();
-
-				}
-
-				min.set( minVal, minVal, minVal, minVal );
-				max.set( maxVal, maxVal, maxVal, maxVal );
-
-				return this.clamp( min, max );
-
-			};
-
-		}(),
-
-		clampLength: function ( min, max ) {
-
-			var length = this.length();
-
-			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );
-
-		},
-
-		floor: function () {
-
-			this.x = Math.floor( this.x );
-			this.y = Math.floor( this.y );
-			this.z = Math.floor( this.z );
-			this.w = Math.floor( this.w );
-
-			return this;
-
-		},
-
-		ceil: function () {
-
-			this.x = Math.ceil( this.x );
-			this.y = Math.ceil( this.y );
-			this.z = Math.ceil( this.z );
-			this.w = Math.ceil( this.w );
-
-			return this;
-
-		},
-
-		round: function () {
-
-			this.x = Math.round( this.x );
-			this.y = Math.round( this.y );
-			this.z = Math.round( this.z );
-			this.w = Math.round( this.w );
-
-			return this;
-
-		},
-
-		roundToZero: function () {
-
-			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
-			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
-			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
-			this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.x = - this.x;
-			this.y = - this.y;
-			this.z = - this.z;
-			this.w = - this.w;
-
-			return this;
-
-		},
-
-		dot: function ( v ) {
-
-			return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
-
-		},
-
-		lengthSq: function () {
-
-			return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
-
-		},
-
-		length: function () {
-
-			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );
-
-		},
-
-		manhattanLength: function () {
-
-			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );
-
-		},
-
-		normalize: function () {
-
-			return this.divideScalar( this.length() || 1 );
-
-		},
-
-		setLength: function ( length ) {
-
-			return this.normalize().multiplyScalar( length );
-
-		},
-
-		lerp: function ( v, alpha ) {
-
-			this.x += ( v.x - this.x ) * alpha;
-			this.y += ( v.y - this.y ) * alpha;
-			this.z += ( v.z - this.z ) * alpha;
-			this.w += ( v.w - this.w ) * alpha;
-
-			return this;
-
-		},
-
-		lerpVectors: function ( v1, v2, alpha ) {
-
-			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );
-
-		},
-
-		equals: function ( v ) {
-
-			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.x = array[ offset ];
-			this.y = array[ offset + 1 ];
-			this.z = array[ offset + 2 ];
-			this.w = array[ offset + 3 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.x;
-			array[ offset + 1 ] = this.y;
-			array[ offset + 2 ] = this.z;
-			array[ offset + 3 ] = this.w;
-
-			return array;
-
-		},
-
-		fromBufferAttribute: function ( attribute, index, offset ) {
-
-			if ( offset !== undefined ) {
-
-				console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );
-
-			}
-
-			this.x = attribute.getX( index );
-			this.y = attribute.getY( index );
-			this.z = attribute.getZ( index );
-			this.w = attribute.getW( index );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author szimek / https://github.com/szimek/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author Marius Kintel / https://github.com/kintel
-	 */
-
-	/*
-	 In options, we can specify:
-	 * Texture parameters for an auto-generated target texture
-	 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
-	*/
-	function WebGLRenderTarget( width, height, options ) {
-
-		this.uuid = _Math.generateUUID();
-
-		this.width = width;
-		this.height = height;
-
-		this.scissor = new Vector4( 0, 0, width, height );
-		this.scissorTest = false;
-
-		this.viewport = new Vector4( 0, 0, width, height );
-
-		options = options || {};
-
-		if ( options.minFilter === undefined ) options.minFilter = LinearFilter;
-
-		this.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );
-
-		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
-		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;
-		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;
-
-	}
-
-	WebGLRenderTarget.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: WebGLRenderTarget,
-
-		isWebGLRenderTarget: true,
-
-		setSize: function ( width, height ) {
-
-			if ( this.width !== width || this.height !== height ) {
-
-				this.width = width;
-				this.height = height;
-
-				this.dispose();
-
-			}
-
-			this.viewport.set( 0, 0, width, height );
-			this.scissor.set( 0, 0, width, height );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.width = source.width;
-			this.height = source.height;
-
-			this.viewport.copy( source.viewport );
-
-			this.texture = source.texture.clone();
-
-			this.depthBuffer = source.depthBuffer;
-			this.stencilBuffer = source.stencilBuffer;
-			this.depthTexture = source.depthTexture;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com
-	 */
-
-	function WebGLRenderTargetCube( width, height, options ) {
-
-		WebGLRenderTarget.call( this, width, height, options );
-
-		this.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5
-		this.activeMipMapLevel = 0;
-
-	}
-
-	WebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );
-	WebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;
-
-	WebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
-
-		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
-
-		this.image = { data: data, width: width, height: height };
-
-		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
-		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
-
-		this.generateMipmaps = false;
-		this.flipY = false;
-		this.unpackAlignment = 1;
-
-	}
-
-	DataTexture.prototype = Object.create( Texture.prototype );
-	DataTexture.prototype.constructor = DataTexture;
-
-	DataTexture.prototype.isDataTexture = true;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {
-
-		images = images !== undefined ? images : [];
-		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;
-
-		Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
-
-		this.flipY = false;
-
-	}
-
-	CubeTexture.prototype = Object.create( Texture.prototype );
-	CubeTexture.prototype.constructor = CubeTexture;
-
-	CubeTexture.prototype.isCubeTexture = true;
-
-	Object.defineProperty( CubeTexture.prototype, 'images', {
-
-		get: function () {
-
-			return this.image;
-
-		},
-
-		set: function ( value ) {
-
-			this.image = value;
-
-		}
-
-	} );
-
-	/**
-	 * @author tschw
-	 *
-	 * Uniforms of a program.
-	 * Those form a tree structure with a special top-level container for the root,
-	 * which you get by calling 'new WebGLUniforms( gl, program, renderer )'.
-	 *
-	 *
-	 * Properties of inner nodes including the top-level container:
-	 *
-	 * .seq - array of nested uniforms
-	 * .map - nested uniforms by name
-	 *
-	 *
-	 * Methods of all nodes except the top-level container:
-	 *
-	 * .setValue( gl, value, [renderer] )
-	 *
-	 * 		uploads a uniform value(s)
-	 *  	the 'renderer' parameter is needed for sampler uniforms
-	 *
-	 *
-	 * Static methods of the top-level container (renderer factorizations):
-	 *
-	 * .upload( gl, seq, values, renderer )
-	 *
-	 * 		sets uniforms in 'seq' to 'values[id].value'
-	 *
-	 * .seqWithValue( seq, values ) : filteredSeq
-	 *
-	 * 		filters 'seq' entries with corresponding entry in values
-	 *
-	 *
-	 * Methods of the top-level container (renderer factorizations):
-	 *
-	 * .setValue( gl, name, value )
-	 *
-	 * 		sets uniform with  name 'name' to 'value'
-	 *
-	 * .set( gl, obj, prop )
-	 *
-	 * 		sets uniform from object and property with same name than uniform
-	 *
-	 * .setOptional( gl, obj, prop )
-	 *
-	 * 		like .set for an optional property of the object
-	 *
-	 */
-
-	var emptyTexture = new Texture();
-	var emptyCubeTexture = new CubeTexture();
-
-	// --- Base for inner nodes (including the root) ---
-
-	function UniformContainer() {
-
-		this.seq = [];
-		this.map = {};
-
-	}
-
-	// --- Utilities ---
-
-	// Array Caches (provide typed arrays for temporary by size)
-
-	var arrayCacheF32 = [];
-	var arrayCacheI32 = [];
-
-	// Float32Array caches used for uploading Matrix uniforms
-
-	var mat4array = new Float32Array( 16 );
-	var mat3array = new Float32Array( 9 );
-
-	// Flattening for arrays of vectors and matrices
-
-	function flatten( array, nBlocks, blockSize ) {
-
-		var firstElem = array[ 0 ];
-
-		if ( firstElem <= 0 || firstElem > 0 ) return array;
-		// unoptimized: ! isNaN( firstElem )
-		// see http://jacksondunstan.com/articles/983
-
-		var n = nBlocks * blockSize,
-			r = arrayCacheF32[ n ];
-
-		if ( r === undefined ) {
-
-			r = new Float32Array( n );
-			arrayCacheF32[ n ] = r;
-
-		}
-
-		if ( nBlocks !== 0 ) {
-
-			firstElem.toArray( r, 0 );
-
-			for ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {
-
-				offset += blockSize;
-				array[ i ].toArray( r, offset );
-
-			}
-
-		}
-
-		return r;
-
-	}
-
-	// Texture unit allocation
-
-	function allocTexUnits( renderer, n ) {
-
-		var r = arrayCacheI32[ n ];
-
-		if ( r === undefined ) {
-
-			r = new Int32Array( n );
-			arrayCacheI32[ n ] = r;
-
-		}
-
-		for ( var i = 0; i !== n; ++ i )
-			r[ i ] = renderer.allocTextureUnit();
-
-		return r;
-
-	}
-
-	// --- Setters ---
-
-	// Note: Defining these methods externally, because they come in a bunch
-	// and this way their names minify.
-
-	// Single scalar
-
-	function setValue1f( gl, v ) {
-
-		gl.uniform1f( this.addr, v );
-
-	}
-
-	function setValue1i( gl, v ) {
-
-		gl.uniform1i( this.addr, v );
-
-	}
-
-	// Single float vector (from flat array or THREE.VectorN)
-
-	function setValue2fv( gl, v ) {
-
-		if ( v.x === undefined ) {
-
-			gl.uniform2fv( this.addr, v );
-
-		} else {
-
-			gl.uniform2f( this.addr, v.x, v.y );
-
-		}
-
-	}
-
-	function setValue3fv( gl, v ) {
-
-		if ( v.x !== undefined ) {
-
-			gl.uniform3f( this.addr, v.x, v.y, v.z );
-
-		} else if ( v.r !== undefined ) {
-
-			gl.uniform3f( this.addr, v.r, v.g, v.b );
-
-		} else {
-
-			gl.uniform3fv( this.addr, v );
-
-		}
-
-	}
-
-	function setValue4fv( gl, v ) {
-
-		if ( v.x === undefined ) {
-
-			gl.uniform4fv( this.addr, v );
-
-		} else {
-
-			 gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );
-
-		}
-
-	}
-
-	// Single matrix (from flat array or MatrixN)
-
-	function setValue2fm( gl, v ) {
-
-		gl.uniformMatrix2fv( this.addr, false, v.elements || v );
-
-	}
-
-	function setValue3fm( gl, v ) {
-
-		if ( v.elements === undefined ) {
-
-			gl.uniformMatrix3fv( this.addr, false, v );
-
-		} else {
-
-			mat3array.set( v.elements );
-			gl.uniformMatrix3fv( this.addr, false, mat3array );
-
-		}
-
-	}
-
-	function setValue4fm( gl, v ) {
-
-		if ( v.elements === undefined ) {
-
-			gl.uniformMatrix4fv( this.addr, false, v );
-
-		} else {
-
-			mat4array.set( v.elements );
-			gl.uniformMatrix4fv( this.addr, false, mat4array );
-
-		}
-
-	}
-
-	// Single texture (2D / Cube)
-
-	function setValueT1( gl, v, renderer ) {
-
-		var unit = renderer.allocTextureUnit();
-		gl.uniform1i( this.addr, unit );
-		renderer.setTexture2D( v || emptyTexture, unit );
-
-	}
-
-	function setValueT6( gl, v, renderer ) {
-
-		var unit = renderer.allocTextureUnit();
-		gl.uniform1i( this.addr, unit );
-		renderer.setTextureCube( v || emptyCubeTexture, unit );
-
-	}
-
-	// Integer / Boolean vectors or arrays thereof (always flat arrays)
-
-	function setValue2iv( gl, v ) {
-
-		gl.uniform2iv( this.addr, v );
-
-	}
-
-	function setValue3iv( gl, v ) {
-
-		gl.uniform3iv( this.addr, v );
-
-	}
-
-	function setValue4iv( gl, v ) {
-
-		gl.uniform4iv( this.addr, v );
-
-	}
-
-	// Helper to pick the right setter for the singular case
-
-	function getSingularSetter( type ) {
-
-		switch ( type ) {
-
-			case 0x1406: return setValue1f; // FLOAT
-			case 0x8b50: return setValue2fv; // _VEC2
-			case 0x8b51: return setValue3fv; // _VEC3
-			case 0x8b52: return setValue4fv; // _VEC4
-
-			case 0x8b5a: return setValue2fm; // _MAT2
-			case 0x8b5b: return setValue3fm; // _MAT3
-			case 0x8b5c: return setValue4fm; // _MAT4
-
-			case 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES
-			case 0x8b60: return setValueT6; // SAMPLER_CUBE
-
-			case 0x1404: case 0x8b56: return setValue1i; // INT, BOOL
-			case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
-			case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
-			case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4
-
-		}
-
-	}
-
-	// Array of scalars
-
-	function setValue1fv( gl, v ) {
-
-		gl.uniform1fv( this.addr, v );
-
-	}
-	function setValue1iv( gl, v ) {
-
-		gl.uniform1iv( this.addr, v );
-
-	}
-
-	// Array of vectors (flat or from THREE classes)
-
-	function setValueV2a( gl, v ) {
-
-		gl.uniform2fv( this.addr, flatten( v, this.size, 2 ) );
-
-	}
-
-	function setValueV3a( gl, v ) {
-
-		gl.uniform3fv( this.addr, flatten( v, this.size, 3 ) );
-
-	}
-
-	function setValueV4a( gl, v ) {
-
-		gl.uniform4fv( this.addr, flatten( v, this.size, 4 ) );
-
-	}
-
-	// Array of matrices (flat or from THREE clases)
-
-	function setValueM2a( gl, v ) {
-
-		gl.uniformMatrix2fv( this.addr, false, flatten( v, this.size, 4 ) );
-
-	}
-
-	function setValueM3a( gl, v ) {
-
-		gl.uniformMatrix3fv( this.addr, false, flatten( v, this.size, 9 ) );
-
-	}
-
-	function setValueM4a( gl, v ) {
-
-		gl.uniformMatrix4fv( this.addr, false, flatten( v, this.size, 16 ) );
-
-	}
-
-	// Array of textures (2D / Cube)
-
-	function setValueT1a( gl, v, renderer ) {
-
-		var n = v.length,
-			units = allocTexUnits( renderer, n );
-
-		gl.uniform1iv( this.addr, units );
-
-		for ( var i = 0; i !== n; ++ i ) {
-
-			renderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] );
-
-		}
-
-	}
-
-	function setValueT6a( gl, v, renderer ) {
-
-		var n = v.length,
-			units = allocTexUnits( renderer, n );
-
-		gl.uniform1iv( this.addr, units );
-
-		for ( var i = 0; i !== n; ++ i ) {
-
-			renderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );
-
-		}
-
-	}
-
-	// Helper to pick the right setter for a pure (bottom-level) array
-
-	function getPureArraySetter( type ) {
-
-		switch ( type ) {
-
-			case 0x1406: return setValue1fv; // FLOAT
-			case 0x8b50: return setValueV2a; // _VEC2
-			case 0x8b51: return setValueV3a; // _VEC3
-			case 0x8b52: return setValueV4a; // _VEC4
-
-			case 0x8b5a: return setValueM2a; // _MAT2
-			case 0x8b5b: return setValueM3a; // _MAT3
-			case 0x8b5c: return setValueM4a; // _MAT4
-
-			case 0x8b5e: return setValueT1a; // SAMPLER_2D
-			case 0x8b60: return setValueT6a; // SAMPLER_CUBE
-
-			case 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL
-			case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
-			case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
-			case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4
-
-		}
-
-	}
-
-	// --- Uniform Classes ---
-
-	function SingleUniform( id, activeInfo, addr ) {
-
-		this.id = id;
-		this.addr = addr;
-		this.setValue = getSingularSetter( activeInfo.type );
-
-		// this.path = activeInfo.name; // DEBUG
-
-	}
-
-	function PureArrayUniform( id, activeInfo, addr ) {
-
-		this.id = id;
-		this.addr = addr;
-		this.size = activeInfo.size;
-		this.setValue = getPureArraySetter( activeInfo.type );
-
-		// this.path = activeInfo.name; // DEBUG
-
-	}
-
-	function StructuredUniform( id ) {
-
-		this.id = id;
-
-		UniformContainer.call( this ); // mix-in
-
-	}
-
-	StructuredUniform.prototype.setValue = function ( gl, value ) {
-
-		// Note: Don't need an extra 'renderer' parameter, since samplers
-		// are not allowed in structured uniforms.
-
-		var seq = this.seq;
-
-		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
-
-			var u = seq[ i ];
-			u.setValue( gl, value[ u.id ] );
-
-		}
-
-	};
-
-	// --- Top-level ---
-
-	// Parser - builds up the property tree from the path strings
-
-	var RePathPart = /([\w\d_]+)(\])?(\[|\.)?/g;
-
-	// extracts
-	// 	- the identifier (member name or array index)
-	//  - followed by an optional right bracket (found when array index)
-	//  - followed by an optional left bracket or dot (type of subscript)
-	//
-	// Note: These portions can be read in a non-overlapping fashion and
-	// allow straightforward parsing of the hierarchy that WebGL encodes
-	// in the uniform names.
-
-	function addUniform( container, uniformObject ) {
-
-		container.seq.push( uniformObject );
-		container.map[ uniformObject.id ] = uniformObject;
-
-	}
-
-	function parseUniform( activeInfo, addr, container ) {
-
-		var path = activeInfo.name,
-			pathLength = path.length;
-
-		// reset RegExp object, because of the early exit of a previous run
-		RePathPart.lastIndex = 0;
-
-		for ( ; ; ) {
-
-			var match = RePathPart.exec( path ),
-				matchEnd = RePathPart.lastIndex,
-
-				id = match[ 1 ],
-				idIsIndex = match[ 2 ] === ']',
-				subscript = match[ 3 ];
-
-			if ( idIsIndex ) id = id | 0; // convert to integer
-
-			if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {
-
-				// bare name or "pure" bottom-level array "[0]" suffix
-
-				addUniform( container, subscript === undefined ?
-					new SingleUniform( id, activeInfo, addr ) :
-					new PureArrayUniform( id, activeInfo, addr ) );
-
-				break;
-
-			} else {
-
-				// step into inner node / create it in case it doesn't exist
-
-				var map = container.map, next = map[ id ];
-
-				if ( next === undefined ) {
-
-					next = new StructuredUniform( id );
-					addUniform( container, next );
-
-				}
-
-				container = next;
-
-			}
-
-		}
-
-	}
-
-	// Root Container
-
-	function WebGLUniforms( gl, program, renderer ) {
-
-		UniformContainer.call( this );
-
-		this.renderer = renderer;
-
-		var n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );
-
-		for ( var i = 0; i < n; ++ i ) {
-
-			var info = gl.getActiveUniform( program, i ),
-				path = info.name,
-				addr = gl.getUniformLocation( program, path );
-
-			parseUniform( info, addr, this );
-
-		}
-
-	}
-
-	WebGLUniforms.prototype.setValue = function ( gl, name, value ) {
-
-		var u = this.map[ name ];
-
-		if ( u !== undefined ) u.setValue( gl, value, this.renderer );
-
-	};
-
-	WebGLUniforms.prototype.setOptional = function ( gl, object, name ) {
-
-		var v = object[ name ];
-
-		if ( v !== undefined ) this.setValue( gl, name, v );
-
-	};
-
-
-	// Static interface
-
-	WebGLUniforms.upload = function ( gl, seq, values, renderer ) {
-
-		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
-
-			var u = seq[ i ],
-				v = values[ u.id ];
-
-			if ( v.needsUpdate !== false ) {
-
-				// note: always updating when .needsUpdate is undefined
-				u.setValue( gl, v.value, renderer );
-
-			}
-
-		}
-
-	};
-
-	WebGLUniforms.seqWithValue = function ( seq, values ) {
-
-		var r = [];
-
-		for ( var i = 0, n = seq.length; i !== n; ++ i ) {
-
-			var u = seq[ i ];
-			if ( u.id in values ) r.push( u );
-
-		}
-
-		return r;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
-		'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
-		'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
-		'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
-		'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
-		'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
-		'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
-		'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
-		'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
-		'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
-		'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
-		'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
-		'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
-		'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
-		'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
-		'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
-		'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
-		'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
-		'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
-		'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'rebeccapurple': 0x663399, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
-		'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
-		'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
-		'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
-		'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };
-
-	function Color( r, g, b ) {
-
-		if ( g === undefined && b === undefined ) {
-
-			// r is THREE.Color, hex or string
-			return this.set( r );
-
-		}
-
-		return this.setRGB( r, g, b );
-
-	}
-
-	Object.assign( Color.prototype, {
-
-		isColor: true,
-
-		r: 1, g: 1, b: 1,
-
-		set: function ( value ) {
-
-			if ( value && value.isColor ) {
-
-				this.copy( value );
-
-			} else if ( typeof value === 'number' ) {
-
-				this.setHex( value );
-
-			} else if ( typeof value === 'string' ) {
-
-				this.setStyle( value );
-
-			}
-
-			return this;
-
-		},
-
-		setScalar: function ( scalar ) {
-
-			this.r = scalar;
-			this.g = scalar;
-			this.b = scalar;
-
-			return this;
-
-		},
-
-		setHex: function ( hex ) {
-
-			hex = Math.floor( hex );
-
-			this.r = ( hex >> 16 & 255 ) / 255;
-			this.g = ( hex >> 8 & 255 ) / 255;
-			this.b = ( hex & 255 ) / 255;
-
-			return this;
-
-		},
-
-		setRGB: function ( r, g, b ) {
-
-			this.r = r;
-			this.g = g;
-			this.b = b;
-
-			return this;
-
-		},
-
-		setHSL: function () {
-
-			function hue2rgb( p, q, t ) {
-
-				if ( t < 0 ) t += 1;
-				if ( t > 1 ) t -= 1;
-				if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
-				if ( t < 1 / 2 ) return q;
-				if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
-				return p;
-
-			}
-
-			return function setHSL( h, s, l ) {
-
-				// h,s,l ranges are in 0.0 - 1.0
-				h = _Math.euclideanModulo( h, 1 );
-				s = _Math.clamp( s, 0, 1 );
-				l = _Math.clamp( l, 0, 1 );
-
-				if ( s === 0 ) {
-
-					this.r = this.g = this.b = l;
-
-				} else {
-
-					var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
-					var q = ( 2 * l ) - p;
-
-					this.r = hue2rgb( q, p, h + 1 / 3 );
-					this.g = hue2rgb( q, p, h );
-					this.b = hue2rgb( q, p, h - 1 / 3 );
-
-				}
-
-				return this;
-
-			};
-
-		}(),
-
-		setStyle: function ( style ) {
-
-			function handleAlpha( string ) {
-
-				if ( string === undefined ) return;
-
-				if ( parseFloat( string ) < 1 ) {
-
-					console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );
-
-				}
-
-			}
-
-
-			var m;
-
-			if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) {
-
-				// rgb / hsl
-
-				var color;
-				var name = m[ 1 ];
-				var components = m[ 2 ];
-
-				switch ( name ) {
-
-					case 'rgb':
-					case 'rgba':
-
-						if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
-
-							// rgb(255,0,0) rgba(255,0,0,0.5)
-							this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
-							this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
-							this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;
-
-							handleAlpha( color[ 5 ] );
-
-							return this;
-
-						}
-
-						if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
-
-							// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
-							this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
-							this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
-							this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;
-
-							handleAlpha( color[ 5 ] );
-
-							return this;
-
-						}
-
-						break;
-
-					case 'hsl':
-					case 'hsla':
-
-						if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {
-
-							// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
-							var h = parseFloat( color[ 1 ] ) / 360;
-							var s = parseInt( color[ 2 ], 10 ) / 100;
-							var l = parseInt( color[ 3 ], 10 ) / 100;
-
-							handleAlpha( color[ 5 ] );
-
-							return this.setHSL( h, s, l );
-
-						}
-
-						break;
-
-				}
-
-			} else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) {
-
-				// hex color
-
-				var hex = m[ 1 ];
-				var size = hex.length;
-
-				if ( size === 3 ) {
-
-					// #ff0
-					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
-					this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
-					this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;
-
-					return this;
-
-				} else if ( size === 6 ) {
-
-					// #ff0000
-					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
-					this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
-					this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;
-
-					return this;
-
-				}
-
-			}
-
-			if ( style && style.length > 0 ) {
-
-				// color keywords
-				var hex = ColorKeywords[ style ];
-
-				if ( hex !== undefined ) {
-
-					// red
-					this.setHex( hex );
-
-				} else {
-
-					// unknown color
-					console.warn( 'THREE.Color: Unknown color ' + style );
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.r, this.g, this.b );
-
-		},
-
-		copy: function ( color ) {
-
-			this.r = color.r;
-			this.g = color.g;
-			this.b = color.b;
-
-			return this;
-
-		},
-
-		copyGammaToLinear: function ( color, gammaFactor ) {
-
-			if ( gammaFactor === undefined ) gammaFactor = 2.0;
-
-			this.r = Math.pow( color.r, gammaFactor );
-			this.g = Math.pow( color.g, gammaFactor );
-			this.b = Math.pow( color.b, gammaFactor );
-
-			return this;
-
-		},
-
-		copyLinearToGamma: function ( color, gammaFactor ) {
-
-			if ( gammaFactor === undefined ) gammaFactor = 2.0;
-
-			var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;
-
-			this.r = Math.pow( color.r, safeInverse );
-			this.g = Math.pow( color.g, safeInverse );
-			this.b = Math.pow( color.b, safeInverse );
-
-			return this;
-
-		},
-
-		convertGammaToLinear: function () {
-
-			var r = this.r, g = this.g, b = this.b;
-
-			this.r = r * r;
-			this.g = g * g;
-			this.b = b * b;
-
-			return this;
-
-		},
-
-		convertLinearToGamma: function () {
-
-			this.r = Math.sqrt( this.r );
-			this.g = Math.sqrt( this.g );
-			this.b = Math.sqrt( this.b );
-
-			return this;
-
-		},
-
-		getHex: function () {
-
-			return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;
-
-		},
-
-		getHexString: function () {
-
-			return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );
-
-		},
-
-		getHSL: function ( optionalTarget ) {
-
-			// h,s,l ranges are in 0.0 - 1.0
-
-			var hsl = optionalTarget || { h: 0, s: 0, l: 0 };
-
-			var r = this.r, g = this.g, b = this.b;
-
-			var max = Math.max( r, g, b );
-			var min = Math.min( r, g, b );
-
-			var hue, saturation;
-			var lightness = ( min + max ) / 2.0;
-
-			if ( min === max ) {
-
-				hue = 0;
-				saturation = 0;
-
-			} else {
-
-				var delta = max - min;
-
-				saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );
-
-				switch ( max ) {
-
-					case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
-					case g: hue = ( b - r ) / delta + 2; break;
-					case b: hue = ( r - g ) / delta + 4; break;
-
-				}
-
-				hue /= 6;
-
-			}
-
-			hsl.h = hue;
-			hsl.s = saturation;
-			hsl.l = lightness;
-
-			return hsl;
-
-		},
-
-		getStyle: function () {
-
-			return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';
-
-		},
-
-		offsetHSL: function ( h, s, l ) {
-
-			var hsl = this.getHSL();
-
-			hsl.h += h; hsl.s += s; hsl.l += l;
-
-			this.setHSL( hsl.h, hsl.s, hsl.l );
-
-			return this;
-
-		},
-
-		add: function ( color ) {
-
-			this.r += color.r;
-			this.g += color.g;
-			this.b += color.b;
-
-			return this;
-
-		},
-
-		addColors: function ( color1, color2 ) {
-
-			this.r = color1.r + color2.r;
-			this.g = color1.g + color2.g;
-			this.b = color1.b + color2.b;
-
-			return this;
-
-		},
-
-		addScalar: function ( s ) {
-
-			this.r += s;
-			this.g += s;
-			this.b += s;
-
-			return this;
-
-		},
-
-		sub: function ( color ) {
-
-			this.r = Math.max( 0, this.r - color.r );
-			this.g = Math.max( 0, this.g - color.g );
-			this.b = Math.max( 0, this.b - color.b );
-
-			return this;
-
-		},
-
-		multiply: function ( color ) {
-
-			this.r *= color.r;
-			this.g *= color.g;
-			this.b *= color.b;
-
-			return this;
-
-		},
-
-		multiplyScalar: function ( s ) {
-
-			this.r *= s;
-			this.g *= s;
-			this.b *= s;
-
-			return this;
-
-		},
-
-		lerp: function ( color, alpha ) {
-
-			this.r += ( color.r - this.r ) * alpha;
-			this.g += ( color.g - this.g ) * alpha;
-			this.b += ( color.b - this.b ) * alpha;
-
-			return this;
-
-		},
-
-		equals: function ( c ) {
-
-			return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );
-
-		},
-
-		fromArray: function ( array, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.r = array[ offset ];
-			this.g = array[ offset + 1 ];
-			this.b = array[ offset + 2 ];
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this.r;
-			array[ offset + 1 ] = this.g;
-			array[ offset + 2 ] = this.b;
-
-			return array;
-
-		},
-
-		toJSON: function () {
-
-			return this.getHex();
-
-		}
-
-	} );
-
-	/**
-	 * Uniforms library for shared webgl shaders
-	 */
-
-	var UniformsLib = {
-
-		common: {
-
-			diffuse: { value: new Color( 0xeeeeee ) },
-			opacity: { value: 1.0 },
-
-			map: { value: null },
-			uvTransform: { value: new Matrix3() },
-
-			alphaMap: { value: null },
-
-		},
-
-		specularmap: {
-
-			specularMap: { value: null },
-
-		},
-
-		envmap: {
-
-			envMap: { value: null },
-			flipEnvMap: { value: - 1 },
-			reflectivity: { value: 1.0 },
-			refractionRatio: { value: 0.98 }
-
-		},
-
-		aomap: {
-
-			aoMap: { value: null },
-			aoMapIntensity: { value: 1 }
-
-		},
-
-		lightmap: {
-
-			lightMap: { value: null },
-			lightMapIntensity: { value: 1 }
-
-		},
-
-		emissivemap: {
-
-			emissiveMap: { value: null }
-
-		},
-
-		bumpmap: {
-
-			bumpMap: { value: null },
-			bumpScale: { value: 1 }
-
-		},
-
-		normalmap: {
-
-			normalMap: { value: null },
-			normalScale: { value: new Vector2( 1, 1 ) }
-
-		},
-
-		displacementmap: {
-
-			displacementMap: { value: null },
-			displacementScale: { value: 1 },
-			displacementBias: { value: 0 }
-
-		},
-
-		roughnessmap: {
-
-			roughnessMap: { value: null }
-
-		},
-
-		metalnessmap: {
-
-			metalnessMap: { value: null }
-
-		},
-
-		gradientmap: {
-
-			gradientMap: { value: null }
-
-		},
-
-		fog: {
-
-			fogDensity: { value: 0.00025 },
-			fogNear: { value: 1 },
-			fogFar: { value: 2000 },
-			fogColor: { value: new Color( 0xffffff ) }
-
-		},
-
-		lights: {
-
-			ambientLightColor: { value: [] },
-
-			directionalLights: { value: [], properties: {
-				direction: {},
-				color: {},
-
-				shadow: {},
-				shadowBias: {},
-				shadowRadius: {},
-				shadowMapSize: {}
-			} },
-
-			directionalShadowMap: { value: [] },
-			directionalShadowMatrix: { value: [] },
-
-			spotLights: { value: [], properties: {
-				color: {},
-				position: {},
-				direction: {},
-				distance: {},
-				coneCos: {},
-				penumbraCos: {},
-				decay: {},
-
-				shadow: {},
-				shadowBias: {},
-				shadowRadius: {},
-				shadowMapSize: {}
-			} },
-
-			spotShadowMap: { value: [] },
-			spotShadowMatrix: { value: [] },
-
-			pointLights: { value: [], properties: {
-				color: {},
-				position: {},
-				decay: {},
-				distance: {},
-
-				shadow: {},
-				shadowBias: {},
-				shadowRadius: {},
-				shadowMapSize: {},
-				shadowCameraNear: {},
-				shadowCameraFar: {}
-			} },
-
-			pointShadowMap: { value: [] },
-			pointShadowMatrix: { value: [] },
-
-			hemisphereLights: { value: [], properties: {
-				direction: {},
-				skyColor: {},
-				groundColor: {}
-			} },
-
-			// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
-			rectAreaLights: { value: [], properties: {
-				color: {},
-				position: {},
-				width: {},
-				height: {}
-			} }
-
-		},
-
-		points: {
-
-			diffuse: { value: new Color( 0xeeeeee ) },
-			opacity: { value: 1.0 },
-			size: { value: 1.0 },
-			scale: { value: 1.0 },
-			map: { value: null },
-			uvTransform: { value: new Matrix3() }
-
-		}
-
-	};
-
-	/**
-	 * Uniform Utilities
-	 */
-
-	var UniformsUtils = {
-
-		merge: function ( uniforms ) {
-
-			var merged = {};
-
-			for ( var u = 0; u < uniforms.length; u ++ ) {
-
-				var tmp = this.clone( uniforms[ u ] );
-
-				for ( var p in tmp ) {
-
-					merged[ p ] = tmp[ p ];
-
-				}
-
-			}
-
-			return merged;
-
-		},
-
-		clone: function ( uniforms_src ) {
-
-			var uniforms_dst = {};
-
-			for ( var u in uniforms_src ) {
-
-				uniforms_dst[ u ] = {};
-
-				for ( var p in uniforms_src[ u ] ) {
-
-					var parameter_src = uniforms_src[ u ][ p ];
-
-					if ( parameter_src && ( parameter_src.isColor ||
-						parameter_src.isMatrix3 || parameter_src.isMatrix4 ||
-						parameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 ||
-						parameter_src.isTexture ) ) {
-
-						uniforms_dst[ u ][ p ] = parameter_src.clone();
-
-					} else if ( Array.isArray( parameter_src ) ) {
-
-						uniforms_dst[ u ][ p ] = parameter_src.slice();
-
-					} else {
-
-						uniforms_dst[ u ][ p ] = parameter_src;
-
-					}
-
-				}
-
-			}
-
-			return uniforms_dst;
-
-		}
-
-	};
-
-	var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif\n";
-
-	var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif\n";
-
-	var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif\n";
-
-	var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif\n";
-
-	var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";
-
-	var begin_vertex = "\nvec3 transformed = vec3( position );\n";
-
-	var beginnormal_vertex = "\nvec3 objectNormal = vec3( normal );\n";
-
-	var bsdfs = "float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\tif( decayExponent > 0.0 ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\treturn distanceFalloff * maxDistanceCutoffFactor;\n#else\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n#endif\n\t}\n\treturn 1.0;\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE  = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\n\treturn specularColor * AB.x + AB.y;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n";
-
-	var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif\n";
-
-	var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t#endif\n#endif\n";
-
-	var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif\n";
-
-	var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvarying vec3 vViewPosition;\n#endif\n";
-
-	var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n";
-
-	var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";
-
-	var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif\n";
-
-	var color_pars_vertex = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";
-
-	var color_vertex = "#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif";
-
-	var common = "#define PI 3.14159265359\n#define PI2 6.28318530718\n#define PI_HALF 1.5707963267949\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\n";
-
-	var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale =  bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif\n";
-
-	var defaultnormal_vertex = "vec3 transformedNormal = normalMatrix * objectNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n";
-
-	var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif\n";
-
-	var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif\n";
-
-	var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif\n";
-
-	var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif\n";
-
-	var encodings_fragment = "  gl_FragColor = linearToOutputTexel( gl_FragColor );\n";
-
-	var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat M      = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM            = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat D      = max( maxRange / maxRGB, 1.0 );\n\tD            = min( floor( D ) / 255.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value )  {\n\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\n\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract(Le);\n\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\n\treturn vec4( max(vRGB, 0.0), 1.0 );\n}\n";
-
-	var envmap_fragment = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\treflectVec = normalize( reflectVec );\n\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\treflectVec = normalize( reflectVec );\n\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif\n";
-
-	var envmap_pars_fragment = "#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntensity;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif\n";
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-	var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif\n";
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-	var envmap_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif\n";
-
-	var fog_vertex = "\n#ifdef USE_FOG\nfogDepth = -mvPosition.z;\n#endif";
-
-	var fog_pars_vertex = "#ifdef USE_FOG\n  varying float fogDepth;\n#endif\n";
-
-	var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif\n";
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-	var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif\n";
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-	var gradientmap_pars_fragment = "#ifdef TOON\n\tuniform sampler2D gradientMap;\n\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\t\tfloat dotNL = dot( normal, lightDirection );\n\t\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t\t#ifdef USE_GRADIENTMAP\n\t\t\treturn texture2D( gradientMap, coord ).rgb;\n\t\t#else\n\t\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t\t#endif\n\t}\n#endif\n";
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-	var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif\n";
-
-	var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";
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-	var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif\n";
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-	var lights_pars = "uniform vec3 ambientLightColor;\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t\tfloat shadowCameraNear;\n\t\tfloat shadowCameraFar;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif\n#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV(queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = asin( clamp( reflectVec.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\t\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif\n";
-
-	var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;\n";
-
-	var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifdef TOON\n\t\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#else\n\t\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\t\tvec3 irradiance = dotNL * directLight.color;\n\t#endif\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)\n";
-
-	var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif\n";
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-	var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}\n";
-
-	var lights_template = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tirradiance += getLightProbeIndirectIrradiance( geometry, 8 );\n\t#endif\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tvec3 radiance = getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), 8 );\n\t#ifndef STANDARD\n\t\tvec3 clearCoatRadiance = getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), 8 );\n\t#else\n\t\tvec3 clearCoatRadiance = vec3( 0.0 );\n\t#endif\n\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif\n";
-
-	var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";
-
-	var logdepthbuf_pars_fragment = "#ifdef USE_LOGDEPTHBUF\n\tuniform float logDepthBufFC;\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n#endif\n";
-
-	var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n\tuniform float logDepthBufFC;\n#endif";
-
-	var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\tgl_Position.z *= gl_Position.w;\n\t#endif\n#endif\n";
-
-	var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif\n";
-
-	var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n";
-
-	var map_particle_fragment = "#ifdef USE_MAP\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n";
-
-	var map_particle_pars_fragment = "#ifdef USE_MAP\n\tuniform mat3 uvTransform;\n\tuniform sampler2D map;\n#endif\n";
-
-	var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif\n";
-
-	var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";
-
-	var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif\n";
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-	var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";
-
-	var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif\n";
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-	var normal_fragment = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n#endif\n#ifdef USE_NORMALMAP\n\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif\n";
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-	var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\n\t\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\n\t\tvec3 N = normalize( surf_norm );\n\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\tmapN.xy = normalScale * mapN.xy;\n\t\tmat3 tsn = mat3( S, T, N );\n\t\treturn normalize( tsn * mapN );\n\t}\n#endif\n";
-
-	var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}\n";
-
-	var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif\n";
-
-	var project_vertex = "vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\ngl_Position = projectionMatrix * mvPosition;\n";
-
-	var dithering_fragment = "#if defined( DITHERING )\n  gl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif\n";
-
-	var dithering_pars_fragment = "#if defined( DITHERING )\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif\n";
-
-	var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif\n";
-
-	var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";
-
-	var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif\n";
-
-	var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif\n";
-
-	var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif\n";
-
-	var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\t#pragma unroll_loop\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}\n";
-
-	var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";
-
-	var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif\n";
-
-	var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif\n";
-
-	var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n#endif\n";
-
-	var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";
-
-	var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";
-
-	var tonemapping_fragment = "#if defined( TONE_MAPPING )\n  gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif\n";
-
-	var tonemapping_pars_fragment = "#ifndef saturate\n\t#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\n";
-
-	var uv_pars_fragment = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif";
-
-	var uv_pars_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform mat3 uvTransform;\n#endif\n";
-
-	var uv_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";
-
-	var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";
-
-	var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif";
-
-	var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif";
-
-	var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n#endif\n";
-
-	var cube_frag = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldPosition;\nvoid main() {\n\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\n\tgl_FragColor.a *= opacity;\n}\n";
-
-	var cube_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}\n";
-
-	var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}\n";
-
-	var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n}\n";
-
-	var distanceRGBA_frag = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}\n";
-
-	var distanceRGBA_vert = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}\n";
-
-	var equirect_frag = "uniform sampler2D tEquirect;\nvarying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldPosition );\n\tvec2 sampleUV;\n\tsampleUV.y = asin( clamp( direction.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n}\n";
-
-	var equirect_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}\n";
-
-	var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";
-
-	var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}\n";
-
-	var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";
-
-	var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}\n";
-
-	var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";
-
-	var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
-
-	var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";
-
-	var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
-
-	var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <lights_pars>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";
-
-	var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
-
-	var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}\n";
-
-	var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}\n";
-
-	var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";
-
-	var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#ifdef USE_SIZEATTENUATION\n\t\tgl_PointSize = size * ( scale / - mvPosition.z );\n\t#else\n\t\tgl_PointSize = size;\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
-
-	var shadow_frag = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <fog_fragment>\n}\n";
-
-	var shadow_vert = "#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";
-
-	var ShaderChunk = {
-		alphamap_fragment: alphamap_fragment,
-		alphamap_pars_fragment: alphamap_pars_fragment,
-		alphatest_fragment: alphatest_fragment,
-		aomap_fragment: aomap_fragment,
-		aomap_pars_fragment: aomap_pars_fragment,
-		begin_vertex: begin_vertex,
-		beginnormal_vertex: beginnormal_vertex,
-		bsdfs: bsdfs,
-		bumpmap_pars_fragment: bumpmap_pars_fragment,
-		clipping_planes_fragment: clipping_planes_fragment,
-		clipping_planes_pars_fragment: clipping_planes_pars_fragment,
-		clipping_planes_pars_vertex: clipping_planes_pars_vertex,
-		clipping_planes_vertex: clipping_planes_vertex,
-		color_fragment: color_fragment,
-		color_pars_fragment: color_pars_fragment,
-		color_pars_vertex: color_pars_vertex,
-		color_vertex: color_vertex,
-		common: common,
-		cube_uv_reflection_fragment: cube_uv_reflection_fragment,
-		defaultnormal_vertex: defaultnormal_vertex,
-		displacementmap_pars_vertex: displacementmap_pars_vertex,
-		displacementmap_vertex: displacementmap_vertex,
-		emissivemap_fragment: emissivemap_fragment,
-		emissivemap_pars_fragment: emissivemap_pars_fragment,
-		encodings_fragment: encodings_fragment,
-		encodings_pars_fragment: encodings_pars_fragment,
-		envmap_fragment: envmap_fragment,
-		envmap_pars_fragment: envmap_pars_fragment,
-		envmap_pars_vertex: envmap_pars_vertex,
-		envmap_vertex: envmap_vertex,
-		fog_vertex: fog_vertex,
-		fog_pars_vertex: fog_pars_vertex,
-		fog_fragment: fog_fragment,
-		fog_pars_fragment: fog_pars_fragment,
-		gradientmap_pars_fragment: gradientmap_pars_fragment,
-		lightmap_fragment: lightmap_fragment,
-		lightmap_pars_fragment: lightmap_pars_fragment,
-		lights_lambert_vertex: lights_lambert_vertex,
-		lights_pars: lights_pars,
-		lights_phong_fragment: lights_phong_fragment,
-		lights_phong_pars_fragment: lights_phong_pars_fragment,
-		lights_physical_fragment: lights_physical_fragment,
-		lights_physical_pars_fragment: lights_physical_pars_fragment,
-		lights_template: lights_template,
-		logdepthbuf_fragment: logdepthbuf_fragment,
-		logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
-		logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
-		logdepthbuf_vertex: logdepthbuf_vertex,
-		map_fragment: map_fragment,
-		map_pars_fragment: map_pars_fragment,
-		map_particle_fragment: map_particle_fragment,
-		map_particle_pars_fragment: map_particle_pars_fragment,
-		metalnessmap_fragment: metalnessmap_fragment,
-		metalnessmap_pars_fragment: metalnessmap_pars_fragment,
-		morphnormal_vertex: morphnormal_vertex,
-		morphtarget_pars_vertex: morphtarget_pars_vertex,
-		morphtarget_vertex: morphtarget_vertex,
-		normal_fragment: normal_fragment,
-		normalmap_pars_fragment: normalmap_pars_fragment,
-		packing: packing,
-		premultiplied_alpha_fragment: premultiplied_alpha_fragment,
-		project_vertex: project_vertex,
-		dithering_fragment: dithering_fragment,
-		dithering_pars_fragment: dithering_pars_fragment,
-		roughnessmap_fragment: roughnessmap_fragment,
-		roughnessmap_pars_fragment: roughnessmap_pars_fragment,
-		shadowmap_pars_fragment: shadowmap_pars_fragment,
-		shadowmap_pars_vertex: shadowmap_pars_vertex,
-		shadowmap_vertex: shadowmap_vertex,
-		shadowmask_pars_fragment: shadowmask_pars_fragment,
-		skinbase_vertex: skinbase_vertex,
-		skinning_pars_vertex: skinning_pars_vertex,
-		skinning_vertex: skinning_vertex,
-		skinnormal_vertex: skinnormal_vertex,
-		specularmap_fragment: specularmap_fragment,
-		specularmap_pars_fragment: specularmap_pars_fragment,
-		tonemapping_fragment: tonemapping_fragment,
-		tonemapping_pars_fragment: tonemapping_pars_fragment,
-		uv_pars_fragment: uv_pars_fragment,
-		uv_pars_vertex: uv_pars_vertex,
-		uv_vertex: uv_vertex,
-		uv2_pars_fragment: uv2_pars_fragment,
-		uv2_pars_vertex: uv2_pars_vertex,
-		uv2_vertex: uv2_vertex,
-		worldpos_vertex: worldpos_vertex,
-
-		cube_frag: cube_frag,
-		cube_vert: cube_vert,
-		depth_frag: depth_frag,
-		depth_vert: depth_vert,
-		distanceRGBA_frag: distanceRGBA_frag,
-		distanceRGBA_vert: distanceRGBA_vert,
-		equirect_frag: equirect_frag,
-		equirect_vert: equirect_vert,
-		linedashed_frag: linedashed_frag,
-		linedashed_vert: linedashed_vert,
-		meshbasic_frag: meshbasic_frag,
-		meshbasic_vert: meshbasic_vert,
-		meshlambert_frag: meshlambert_frag,
-		meshlambert_vert: meshlambert_vert,
-		meshphong_frag: meshphong_frag,
-		meshphong_vert: meshphong_vert,
-		meshphysical_frag: meshphysical_frag,
-		meshphysical_vert: meshphysical_vert,
-		normal_frag: normal_frag,
-		normal_vert: normal_vert,
-		points_frag: points_frag,
-		points_vert: points_vert,
-		shadow_frag: shadow_frag,
-		shadow_vert: shadow_vert
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 */
-
-	var ShaderLib = {
-
-		basic: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.specularmap,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.fog
-			] ),
-
-			vertexShader: ShaderChunk.meshbasic_vert,
-			fragmentShader: ShaderChunk.meshbasic_frag
-
-		},
-
-		lambert: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.specularmap,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.emissivemap,
-				UniformsLib.fog,
-				UniformsLib.lights,
-				{
-					emissive: { value: new Color( 0x000000 ) }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.meshlambert_vert,
-			fragmentShader: ShaderChunk.meshlambert_frag
-
-		},
-
-		phong: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.specularmap,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.emissivemap,
-				UniformsLib.bumpmap,
-				UniformsLib.normalmap,
-				UniformsLib.displacementmap,
-				UniformsLib.gradientmap,
-				UniformsLib.fog,
-				UniformsLib.lights,
-				{
-					emissive: { value: new Color( 0x000000 ) },
-					specular: { value: new Color( 0x111111 ) },
-					shininess: { value: 30 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.meshphong_vert,
-			fragmentShader: ShaderChunk.meshphong_frag
-
-		},
-
-		standard: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.envmap,
-				UniformsLib.aomap,
-				UniformsLib.lightmap,
-				UniformsLib.emissivemap,
-				UniformsLib.bumpmap,
-				UniformsLib.normalmap,
-				UniformsLib.displacementmap,
-				UniformsLib.roughnessmap,
-				UniformsLib.metalnessmap,
-				UniformsLib.fog,
-				UniformsLib.lights,
-				{
-					emissive: { value: new Color( 0x000000 ) },
-					roughness: { value: 0.5 },
-					metalness: { value: 0.5 },
-					envMapIntensity: { value: 1 } // temporary
-				}
-			] ),
-
-			vertexShader: ShaderChunk.meshphysical_vert,
-			fragmentShader: ShaderChunk.meshphysical_frag
-
-		},
-
-		points: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.points,
-				UniformsLib.fog
-			] ),
-
-			vertexShader: ShaderChunk.points_vert,
-			fragmentShader: ShaderChunk.points_frag
-
-		},
-
-		dashed: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.fog,
-				{
-					scale: { value: 1 },
-					dashSize: { value: 1 },
-					totalSize: { value: 2 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.linedashed_vert,
-			fragmentShader: ShaderChunk.linedashed_frag
-
-		},
-
-		depth: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.displacementmap
-			] ),
-
-			vertexShader: ShaderChunk.depth_vert,
-			fragmentShader: ShaderChunk.depth_frag
-
-		},
-
-		normal: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.bumpmap,
-				UniformsLib.normalmap,
-				UniformsLib.displacementmap,
-				{
-					opacity: { value: 1.0 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.normal_vert,
-			fragmentShader: ShaderChunk.normal_frag
-
-		},
-
-		/* -------------------------------------------------------------------------
-		//	Cube map shader
-		 ------------------------------------------------------------------------- */
-
-		cube: {
-
-			uniforms: {
-				tCube: { value: null },
-				tFlip: { value: - 1 },
-				opacity: { value: 1.0 }
-			},
-
-			vertexShader: ShaderChunk.cube_vert,
-			fragmentShader: ShaderChunk.cube_frag
-
-		},
-
-		equirect: {
-
-			uniforms: {
-				tEquirect: { value: null },
-			},
-
-			vertexShader: ShaderChunk.equirect_vert,
-			fragmentShader: ShaderChunk.equirect_frag
-
-		},
-
-		distanceRGBA: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.common,
-				UniformsLib.displacementmap,
-				{
-					referencePosition: { value: new Vector3() },
-					nearDistance: { value: 1 },
-					farDistance: { value: 1000 }
-				}
-			] ),
-
-			vertexShader: ShaderChunk.distanceRGBA_vert,
-			fragmentShader: ShaderChunk.distanceRGBA_frag
-
-		},
-
-		shadow: {
-
-			uniforms: UniformsUtils.merge( [
-				UniformsLib.lights,
-				UniformsLib.fog,
-				{
-					color: { value: new Color( 0x00000 ) },
-					opacity: { value: 1.0 }
-				},
-			] ),
-
-			vertexShader: ShaderChunk.shadow_vert,
-			fragmentShader: ShaderChunk.shadow_frag
-
-		}
-
-	};
-
-	ShaderLib.physical = {
-
-		uniforms: UniformsUtils.merge( [
-			ShaderLib.standard.uniforms,
-			{
-				clearCoat: { value: 0 },
-				clearCoatRoughness: { value: 0 }
-			}
-		] ),
-
-		vertexShader: ShaderChunk.meshphysical_vert,
-		fragmentShader: ShaderChunk.meshphysical_frag
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
-
-		Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
-
-		this.needsUpdate = true;
-
-	}
-
-	CanvasTexture.prototype = Object.create( Texture.prototype );
-	CanvasTexture.prototype.constructor = CanvasTexture;
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function WebGLSpriteRenderer( renderer, gl, state, textures, capabilities ) {
-
-		var vertexBuffer, elementBuffer;
-		var program, attributes, uniforms;
-
-		var texture;
-
-		// decompose matrixWorld
-
-		var spritePosition = new Vector3();
-		var spriteRotation = new Quaternion();
-		var spriteScale = new Vector3();
-
-		function init() {
-
-			var vertices = new Float32Array( [
-				- 0.5, - 0.5, 0, 0,
-				  0.5, - 0.5, 1, 0,
-				  0.5, 0.5, 1, 1,
-				- 0.5, 0.5, 0, 1
-			] );
-
-			var faces = new Uint16Array( [
-				0, 1, 2,
-				0, 2, 3
-			] );
-
-			vertexBuffer = gl.createBuffer();
-			elementBuffer = gl.createBuffer();
-
-			gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
-			gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );
-
-			gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
-			gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );
-
-			program = createProgram();
-
-			attributes = {
-				position: gl.getAttribLocation( program, 'position' ),
-				uv: gl.getAttribLocation( program, 'uv' )
-			};
-
-			uniforms = {
-				uvOffset: gl.getUniformLocation( program, 'uvOffset' ),
-				uvScale: gl.getUniformLocation( program, 'uvScale' ),
-
-				rotation: gl.getUniformLocation( program, 'rotation' ),
-				center: gl.getUniformLocation( program, 'center' ),
-				scale: gl.getUniformLocation( program, 'scale' ),
-
-				color: gl.getUniformLocation( program, 'color' ),
-				map: gl.getUniformLocation( program, 'map' ),
-				opacity: gl.getUniformLocation( program, 'opacity' ),
-
-				modelViewMatrix: gl.getUniformLocation( program, 'modelViewMatrix' ),
-				projectionMatrix: gl.getUniformLocation( program, 'projectionMatrix' ),
-
-				fogType: gl.getUniformLocation( program, 'fogType' ),
-				fogDensity: gl.getUniformLocation( program, 'fogDensity' ),
-				fogNear: gl.getUniformLocation( program, 'fogNear' ),
-				fogFar: gl.getUniformLocation( program, 'fogFar' ),
-				fogColor: gl.getUniformLocation( program, 'fogColor' ),
-				fogDepth: gl.getUniformLocation( program, 'fogDepth' ),
-
-				alphaTest: gl.getUniformLocation( program, 'alphaTest' )
-			};
-
-			var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
-			canvas.width = 8;
-			canvas.height = 8;
-
-			var context = canvas.getContext( '2d' );
-			context.fillStyle = 'white';
-			context.fillRect( 0, 0, 8, 8 );
-
-			texture = new CanvasTexture( canvas );
-
-		}
-
-		this.render = function ( sprites, scene, camera ) {
-
-			if ( sprites.length === 0 ) return;
-
-			// setup gl
-
-			if ( program === undefined ) {
-
-				init();
-
-			}
-
-			state.useProgram( program );
-
-			state.initAttributes();
-			state.enableAttribute( attributes.position );
-			state.enableAttribute( attributes.uv );
-			state.disableUnusedAttributes();
-
-			state.disable( gl.CULL_FACE );
-			state.enable( gl.BLEND );
-
-			gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
-			gl.vertexAttribPointer( attributes.position, 2, gl.FLOAT, false, 2 * 8, 0 );
-			gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );
-
-			gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
-
-			gl.uniformMatrix4fv( uniforms.projectionMatrix, false, camera.projectionMatrix.elements );
-
-			state.activeTexture( gl.TEXTURE0 );
-			gl.uniform1i( uniforms.map, 0 );
-
-			var oldFogType = 0;
-			var sceneFogType = 0;
-			var fog = scene.fog;
-
-			if ( fog ) {
-
-				gl.uniform3f( uniforms.fogColor, fog.color.r, fog.color.g, fog.color.b );
-
-				if ( fog.isFog ) {
-
-					gl.uniform1f( uniforms.fogNear, fog.near );
-					gl.uniform1f( uniforms.fogFar, fog.far );
-
-					gl.uniform1i( uniforms.fogType, 1 );
-					oldFogType = 1;
-					sceneFogType = 1;
-
-				} else if ( fog.isFogExp2 ) {
-
-					gl.uniform1f( uniforms.fogDensity, fog.density );
-
-					gl.uniform1i( uniforms.fogType, 2 );
-					oldFogType = 2;
-					sceneFogType = 2;
-
-				}
-
-			} else {
-
-				gl.uniform1i( uniforms.fogType, 0 );
-				oldFogType = 0;
-				sceneFogType = 0;
-
-			}
-
-
-			// update positions and sort
-
-			for ( var i = 0, l = sprites.length; i < l; i ++ ) {
-
-				var sprite = sprites[ i ];
-
-				sprite.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, sprite.matrixWorld );
-				sprite.z = - sprite.modelViewMatrix.elements[ 14 ];
-
-			}
-
-			sprites.sort( painterSortStable );
-
-			// render all sprites
-
-			var scale = [];
-			var center = [];
-
-			for ( var i = 0, l = sprites.length; i < l; i ++ ) {
-
-				var sprite = sprites[ i ];
-				var material = sprite.material;
-
-				if ( material.visible === false ) continue;
-
-				sprite.onBeforeRender( renderer, scene, camera, undefined, material, undefined );
-
-				gl.uniform1f( uniforms.alphaTest, material.alphaTest );
-				gl.uniformMatrix4fv( uniforms.modelViewMatrix, false, sprite.modelViewMatrix.elements );
-
-				sprite.matrixWorld.decompose( spritePosition, spriteRotation, spriteScale );
-
-				scale[ 0 ] = spriteScale.x;
-				scale[ 1 ] = spriteScale.y;
-
-				center[ 0 ] = sprite.center.x - 0.5;
-				center[ 1 ] = sprite.center.y - 0.5;
-
-				var fogType = 0;
-
-				if ( scene.fog && material.fog ) {
-
-					fogType = sceneFogType;
-
-				}
-
-				if ( oldFogType !== fogType ) {
-
-					gl.uniform1i( uniforms.fogType, fogType );
-					oldFogType = fogType;
-
-				}
-
-				if ( material.map !== null ) {
-
-					gl.uniform2f( uniforms.uvOffset, material.map.offset.x, material.map.offset.y );
-					gl.uniform2f( uniforms.uvScale, material.map.repeat.x, material.map.repeat.y );
-
-				} else {
-
-					gl.uniform2f( uniforms.uvOffset, 0, 0 );
-					gl.uniform2f( uniforms.uvScale, 1, 1 );
-
-				}
-
-				gl.uniform1f( uniforms.opacity, material.opacity );
-				gl.uniform3f( uniforms.color, material.color.r, material.color.g, material.color.b );
-
-				gl.uniform1f( uniforms.rotation, material.rotation );
-				gl.uniform2fv( uniforms.center, center );
-				gl.uniform2fv( uniforms.scale, scale );
-
-				state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );
-				state.buffers.depth.setTest( material.depthTest );
-				state.buffers.depth.setMask( material.depthWrite );
-				state.buffers.color.setMask( material.colorWrite );
-
-				textures.setTexture2D( material.map || texture, 0 );
-
-				gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );
-
-				sprite.onAfterRender( renderer, scene, camera, undefined, material, undefined );
-
-			}
-
-			// restore gl
-
-			state.enable( gl.CULL_FACE );
-
-			state.reset();
-
-		};
-
-		function createProgram() {
-
-			var program = gl.createProgram();
-
-			var vertexShader = gl.createShader( gl.VERTEX_SHADER );
-			var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );
-
-			gl.shaderSource( vertexShader, [
-
-				'precision ' + capabilities.precision + ' float;',
-
-				'#define SHADER_NAME ' + 'SpriteMaterial',
-
-				'uniform mat4 modelViewMatrix;',
-				'uniform mat4 projectionMatrix;',
-				'uniform float rotation;',
-				'uniform vec2 center;',
-				'uniform vec2 scale;',
-				'uniform vec2 uvOffset;',
-				'uniform vec2 uvScale;',
-
-				'attribute vec2 position;',
-				'attribute vec2 uv;',
-
-				'varying vec2 vUV;',
-				'varying float fogDepth;',
-
-				'void main() {',
-
-				'	vUV = uvOffset + uv * uvScale;',
-
-				'	vec2 alignedPosition = ( position - center ) * scale;',
-
-				'	vec2 rotatedPosition;',
-				'	rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;',
-				'	rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;',
-
-				'	vec4 mvPosition;',
-
-				'	mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );',
-				'	mvPosition.xy += rotatedPosition;',
-
-				'	gl_Position = projectionMatrix * mvPosition;',
-
-				'	fogDepth = - mvPosition.z;',
-
-				'}'
-
-			].join( '\n' ) );
-
-			gl.shaderSource( fragmentShader, [
-
-				'precision ' + capabilities.precision + ' float;',
-
-				'#define SHADER_NAME ' + 'SpriteMaterial',
-
-				'uniform vec3 color;',
-				'uniform sampler2D map;',
-				'uniform float opacity;',
-
-				'uniform int fogType;',
-				'uniform vec3 fogColor;',
-				'uniform float fogDensity;',
-				'uniform float fogNear;',
-				'uniform float fogFar;',
-				'uniform float alphaTest;',
-
-				'varying vec2 vUV;',
-				'varying float fogDepth;',
-
-				'void main() {',
-
-				'	vec4 texture = texture2D( map, vUV );',
-
-				'	gl_FragColor = vec4( color * texture.xyz, texture.a * opacity );',
-
-				'	if ( gl_FragColor.a < alphaTest ) discard;',
-
-				'	if ( fogType > 0 ) {',
-
-				'		float fogFactor = 0.0;',
-
-				'		if ( fogType == 1 ) {',
-
-				'			fogFactor = smoothstep( fogNear, fogFar, fogDepth );',
-
-				'		} else {',
-
-				'			const float LOG2 = 1.442695;',
-				'			fogFactor = exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 );',
-				'			fogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );',
-
-				'		}',
-
-				'		gl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );',
-
-				'	}',
-
-				'}'
-
-			].join( '\n' ) );
-
-			gl.compileShader( vertexShader );
-			gl.compileShader( fragmentShader );
-
-			gl.attachShader( program, vertexShader );
-			gl.attachShader( program, fragmentShader );
-
-			gl.linkProgram( program );
-
-			return program;
-
-		}
-
-		function painterSortStable( a, b ) {
-
-			if ( a.renderOrder !== b.renderOrder ) {
-
-				return a.renderOrder - b.renderOrder;
-
-			} else if ( a.z !== b.z ) {
-
-				return b.z - a.z;
-
-			} else {
-
-				return b.id - a.id;
-
-			}
-
-		}
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	var materialId = 0;
-
-	function Material() {
-
-		Object.defineProperty( this, 'id', { value: materialId ++ } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'Material';
-
-		this.fog = true;
-		this.lights = true;
-
-		this.blending = NormalBlending;
-		this.side = FrontSide;
-		this.flatShading = false;
-		this.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors
-
-		this.opacity = 1;
-		this.transparent = false;
-
-		this.blendSrc = SrcAlphaFactor;
-		this.blendDst = OneMinusSrcAlphaFactor;
-		this.blendEquation = AddEquation;
-		this.blendSrcAlpha = null;
-		this.blendDstAlpha = null;
-		this.blendEquationAlpha = null;
-
-		this.depthFunc = LessEqualDepth;
-		this.depthTest = true;
-		this.depthWrite = true;
-
-		this.clippingPlanes = null;
-		this.clipIntersection = false;
-		this.clipShadows = false;
-
-		this.shadowSide = null;
-
-		this.colorWrite = true;
-
-		this.precision = null; // override the renderer's default precision for this material
-
-		this.polygonOffset = false;
-		this.polygonOffsetFactor = 0;
-		this.polygonOffsetUnits = 0;
-
-		this.dithering = false;
-
-		this.alphaTest = 0;
-		this.premultipliedAlpha = false;
-
-		this.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer
-
-		this.visible = true;
-
-		this.userData = {};
-
-		this.needsUpdate = true;
-
-	}
-
-	Material.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Material,
-
-		isMaterial: true,
-
-		onBeforeCompile: function () {},
-
-		setValues: function ( values ) {
-
-			if ( values === undefined ) return;
-
-			for ( var key in values ) {
-
-				var newValue = values[ key ];
-
-				if ( newValue === undefined ) {
-
-					console.warn( "THREE.Material: '" + key + "' parameter is undefined." );
-					continue;
-
-				}
-
-				// for backward compatability if shading is set in the constructor
-				if ( key === 'shading' ) {
-
-					console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
-					this.flatShading = ( newValue === FlatShading ) ? true : false;
-					continue;
-
-				}
-
-				var currentValue = this[ key ];
-
-				if ( currentValue === undefined ) {
-
-					console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." );
-					continue;
-
-				}
-
-				if ( currentValue && currentValue.isColor ) {
-
-					currentValue.set( newValue );
-
-				} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {
-
-					currentValue.copy( newValue );
-
-				} else if ( key === 'overdraw' ) {
-
-					// ensure overdraw is backwards-compatible with legacy boolean type
-					this[ key ] = Number( newValue );
-
-				} else {
-
-					this[ key ] = newValue;
-
-				}
-
-			}
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var isRoot = ( meta === undefined || typeof meta === 'string' );
-
-			if ( isRoot ) {
-
-				meta = {
-					textures: {},
-					images: {}
-				};
-
-			}
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'Material',
-					generator: 'Material.toJSON'
-				}
-			};
-
-			// standard Material serialization
-			data.uuid = this.uuid;
-			data.type = this.type;
-
-			if ( this.name !== '' ) data.name = this.name;
-
-			if ( this.color && this.color.isColor ) data.color = this.color.getHex();
-
-			if ( this.roughness !== undefined ) data.roughness = this.roughness;
-			if ( this.metalness !== undefined ) data.metalness = this.metalness;
-
-			if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
-			if ( this.emissiveIntensity !== 1 ) data.emissiveIntensity = this.emissiveIntensity;
-
-			if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
-			if ( this.shininess !== undefined ) data.shininess = this.shininess;
-			if ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;
-			if ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;
-
-			if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
-			if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;
-			if ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;
-			if ( this.bumpMap && this.bumpMap.isTexture ) {
-
-				data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
-				data.bumpScale = this.bumpScale;
-
-			}
-			if ( this.normalMap && this.normalMap.isTexture ) {
-
-				data.normalMap = this.normalMap.toJSON( meta ).uuid;
-				data.normalScale = this.normalScale.toArray();
-
-			}
-			if ( this.displacementMap && this.displacementMap.isTexture ) {
-
-				data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
-				data.displacementScale = this.displacementScale;
-				data.displacementBias = this.displacementBias;
-
-			}
-			if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
-			if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;
-
-			if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
-			if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;
-
-			if ( this.envMap && this.envMap.isTexture ) {
-
-				data.envMap = this.envMap.toJSON( meta ).uuid;
-				data.reflectivity = this.reflectivity; // Scale behind envMap
-
-			}
-
-			if ( this.gradientMap && this.gradientMap.isTexture ) {
-
-				data.gradientMap = this.gradientMap.toJSON( meta ).uuid;
-
-			}
-
-			if ( this.size !== undefined ) data.size = this.size;
-			if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;
-
-			if ( this.blending !== NormalBlending ) data.blending = this.blending;
-			if ( this.flatShading === true ) data.flatShading = this.flatShading;
-			if ( this.side !== FrontSide ) data.side = this.side;
-			if ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;
-
-			if ( this.opacity < 1 ) data.opacity = this.opacity;
-			if ( this.transparent === true ) data.transparent = this.transparent;
-
-			data.depthFunc = this.depthFunc;
-			data.depthTest = this.depthTest;
-			data.depthWrite = this.depthWrite;
-
-			// rotation (SpriteMaterial)
-			if ( this.rotation !== 0 ) data.rotation = this.rotation;
-
-			if ( this.linewidth !== 1 ) data.linewidth = this.linewidth;
-			if ( this.dashSize !== undefined ) data.dashSize = this.dashSize;
-			if ( this.gapSize !== undefined ) data.gapSize = this.gapSize;
-			if ( this.scale !== undefined ) data.scale = this.scale;
-
-			if ( this.dithering === true ) data.dithering = true;
-
-			if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
-			if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;
-
-			if ( this.wireframe === true ) data.wireframe = this.wireframe;
-			if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
-			if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
-			if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;
-
-			if ( this.morphTargets === true ) data.morphTargets = true;
-			if ( this.skinning === true ) data.skinning = true;
-
-			if ( this.visible === false ) data.visible = false;
-			if ( JSON.stringify( this.userData ) !== '{}' ) data.userData = this.userData;
-
-			// TODO: Copied from Object3D.toJSON
-
-			function extractFromCache( cache ) {
-
-				var values = [];
-
-				for ( var key in cache ) {
-
-					var data = cache[ key ];
-					delete data.metadata;
-					values.push( data );
-
-				}
-
-				return values;
-
-			}
-
-			if ( isRoot ) {
-
-				var textures = extractFromCache( meta.textures );
-				var images = extractFromCache( meta.images );
-
-				if ( textures.length > 0 ) data.textures = textures;
-				if ( images.length > 0 ) data.images = images;
-
-			}
-
-			return data;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.name = source.name;
-
-			this.fog = source.fog;
-			this.lights = source.lights;
-
-			this.blending = source.blending;
-			this.side = source.side;
-			this.flatShading = source.flatShading;
-			this.vertexColors = source.vertexColors;
-
-			this.opacity = source.opacity;
-			this.transparent = source.transparent;
-
-			this.blendSrc = source.blendSrc;
-			this.blendDst = source.blendDst;
-			this.blendEquation = source.blendEquation;
-			this.blendSrcAlpha = source.blendSrcAlpha;
-			this.blendDstAlpha = source.blendDstAlpha;
-			this.blendEquationAlpha = source.blendEquationAlpha;
-
-			this.depthFunc = source.depthFunc;
-			this.depthTest = source.depthTest;
-			this.depthWrite = source.depthWrite;
-
-			this.colorWrite = source.colorWrite;
-
-			this.precision = source.precision;
-
-			this.polygonOffset = source.polygonOffset;
-			this.polygonOffsetFactor = source.polygonOffsetFactor;
-			this.polygonOffsetUnits = source.polygonOffsetUnits;
-
-			this.dithering = source.dithering;
-
-			this.alphaTest = source.alphaTest;
-			this.premultipliedAlpha = source.premultipliedAlpha;
-
-			this.overdraw = source.overdraw;
-
-			this.visible = source.visible;
-			this.userData = JSON.parse( JSON.stringify( source.userData ) );
-
-			this.clipShadows = source.clipShadows;
-			this.clipIntersection = source.clipIntersection;
-
-			var srcPlanes = source.clippingPlanes,
-				dstPlanes = null;
-
-			if ( srcPlanes !== null ) {
-
-				var n = srcPlanes.length;
-				dstPlanes = new Array( n );
-
-				for ( var i = 0; i !== n; ++ i )
-					dstPlanes[ i ] = srcPlanes[ i ].clone();
-
-			}
-
-			this.clippingPlanes = dstPlanes;
-
-			this.shadowSide = source.shadowSide;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author bhouston / https://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>
-	 * }
-	 */
-
-	function MeshDepthMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshDepthMaterial';
-
-		this.depthPacking = BasicDepthPacking;
-
-		this.skinning = false;
-		this.morphTargets = false;
-
-		this.map = null;
-
-		this.alphaMap = null;
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-
-		this.fog = false;
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshDepthMaterial.prototype = Object.create( Material.prototype );
-	MeshDepthMaterial.prototype.constructor = MeshDepthMaterial;
-
-	MeshDepthMaterial.prototype.isMeshDepthMaterial = true;
-
-	MeshDepthMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.depthPacking = source.depthPacking;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-
-		this.map = source.map;
-
-		this.alphaMap = source.alphaMap;
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-
-		return this;
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *
-	 *  referencePosition: <float>,
-	 *  nearDistance: <float>,
-	 *  farDistance: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>
-	 *
-	 * }
-	 */
-
-	function MeshDistanceMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshDistanceMaterial';
-
-		this.referencePosition = new Vector3();
-		this.nearDistance = 1;
-		this.farDistance = 1000;
-
-		this.skinning = false;
-		this.morphTargets = false;
-
-		this.map = null;
-
-		this.alphaMap = null;
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.fog = false;
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshDistanceMaterial.prototype = Object.create( Material.prototype );
-	MeshDistanceMaterial.prototype.constructor = MeshDistanceMaterial;
-
-	MeshDistanceMaterial.prototype.isMeshDistanceMaterial = true;
-
-	MeshDistanceMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.referencePosition.copy( source.referencePosition );
-		this.nearDistance = source.nearDistance;
-		this.farDistance = source.farDistance;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-
-		this.map = source.map;
-
-		this.alphaMap = source.alphaMap;
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		return this;
-
-	};
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Box3( min, max ) {
-
-		this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
-		this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );
-
-	}
-
-	Object.assign( Box3.prototype, {
-
-		isBox3: true,
-
-		set: function ( min, max ) {
-
-			this.min.copy( min );
-			this.max.copy( max );
-
-			return this;
-
-		},
-
-		setFromArray: function ( array ) {
-
-			var minX = + Infinity;
-			var minY = + Infinity;
-			var minZ = + Infinity;
-
-			var maxX = - Infinity;
-			var maxY = - Infinity;
-			var maxZ = - Infinity;
-
-			for ( var i = 0, l = array.length; i < l; i += 3 ) {
-
-				var x = array[ i ];
-				var y = array[ i + 1 ];
-				var z = array[ i + 2 ];
-
-				if ( x < minX ) minX = x;
-				if ( y < minY ) minY = y;
-				if ( z < minZ ) minZ = z;
-
-				if ( x > maxX ) maxX = x;
-				if ( y > maxY ) maxY = y;
-				if ( z > maxZ ) maxZ = z;
-
-			}
-
-			this.min.set( minX, minY, minZ );
-			this.max.set( maxX, maxY, maxZ );
-
-			return this;
-
-		},
-
-		setFromBufferAttribute: function ( attribute ) {
-
-			var minX = + Infinity;
-			var minY = + Infinity;
-			var minZ = + Infinity;
-
-			var maxX = - Infinity;
-			var maxY = - Infinity;
-			var maxZ = - Infinity;
-
-			for ( var i = 0, l = attribute.count; i < l; i ++ ) {
-
-				var x = attribute.getX( i );
-				var y = attribute.getY( i );
-				var z = attribute.getZ( i );
-
-				if ( x < minX ) minX = x;
-				if ( y < minY ) minY = y;
-				if ( z < minZ ) minZ = z;
-
-				if ( x > maxX ) maxX = x;
-				if ( y > maxY ) maxY = y;
-				if ( z > maxZ ) maxZ = z;
-
-			}
-
-			this.min.set( minX, minY, minZ );
-			this.max.set( maxX, maxY, maxZ );
-
-			return this;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			this.makeEmpty();
-
-			for ( var i = 0, il = points.length; i < il; i ++ ) {
-
-				this.expandByPoint( points[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-		setFromCenterAndSize: function () {
-
-			var v1 = new Vector3();
-
-			return function setFromCenterAndSize( center, size ) {
-
-				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
-
-				this.min.copy( center ).sub( halfSize );
-				this.max.copy( center ).add( halfSize );
-
-				return this;
-
-			};
-
-		}(),
-
-		setFromObject: function ( object ) {
-
-			this.makeEmpty();
-
-			return this.expandByObject( object );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( box ) {
-
-			this.min.copy( box.min );
-			this.max.copy( box.max );
-
-			return this;
-
-		},
-
-		makeEmpty: function () {
-
-			this.min.x = this.min.y = this.min.z = + Infinity;
-			this.max.x = this.max.y = this.max.z = - Infinity;
-
-			return this;
-
-		},
-
-		isEmpty: function () {
-
-			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
-
-			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );
-
-		},
-
-		getCenter: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-			return this.isEmpty() ? result.set( 0, 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
-
-		},
-
-		getSize: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-			return this.isEmpty() ? result.set( 0, 0, 0 ) : result.subVectors( this.max, this.min );
-
-		},
-
-		expandByPoint: function ( point ) {
-
-			this.min.min( point );
-			this.max.max( point );
-
-			return this;
-
-		},
-
-		expandByVector: function ( vector ) {
-
-			this.min.sub( vector );
-			this.max.add( vector );
-
-			return this;
-
-		},
-
-		expandByScalar: function ( scalar ) {
-
-			this.min.addScalar( - scalar );
-			this.max.addScalar( scalar );
-
-			return this;
-
-		},
-
-		expandByObject: function () {
-
-			// Computes the world-axis-aligned bounding box of an object (including its children),
-			// accounting for both the object's, and children's, world transforms
-
-			var scope, i, l;
-
-			var v1 = new Vector3();
-
-			function traverse( node ) {
-
-				var geometry = node.geometry;
-
-				if ( geometry !== undefined ) {
-
-					if ( geometry.isGeometry ) {
-
-						var vertices = geometry.vertices;
-
-						for ( i = 0, l = vertices.length; i < l; i ++ ) {
-
-							v1.copy( vertices[ i ] );
-							v1.applyMatrix4( node.matrixWorld );
-
-							scope.expandByPoint( v1 );
-
-						}
-
-					} else if ( geometry.isBufferGeometry ) {
-
-						var attribute = geometry.attributes.position;
-
-						if ( attribute !== undefined ) {
-
-							for ( i = 0, l = attribute.count; i < l; i ++ ) {
-
-								v1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );
-
-								scope.expandByPoint( v1 );
-
-							}
-
-						}
-
-					}
-
-				}
-
-			}
-
-			return function expandByObject( object ) {
-
-				scope = this;
-
-				object.updateMatrixWorld( true );
-
-				object.traverse( traverse );
-
-				return this;
-
-			};
-
-		}(),
-
-		containsPoint: function ( point ) {
-
-			return point.x < this.min.x || point.x > this.max.x ||
-				point.y < this.min.y || point.y > this.max.y ||
-				point.z < this.min.z || point.z > this.max.z ? false : true;
-
-		},
-
-		containsBox: function ( box ) {
-
-			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
-				this.min.y <= box.min.y && box.max.y <= this.max.y &&
-				this.min.z <= box.min.z && box.max.z <= this.max.z;
-
-		},
-
-		getParameter: function ( point, optionalTarget ) {
-
-			// This can potentially have a divide by zero if the box
-			// has a size dimension of 0.
-
-			var result = optionalTarget || new Vector3();
-
-			return result.set(
-				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
-				( point.y - this.min.y ) / ( this.max.y - this.min.y ),
-				( point.z - this.min.z ) / ( this.max.z - this.min.z )
-			);
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			// using 6 splitting planes to rule out intersections.
-			return box.max.x < this.min.x || box.min.x > this.max.x ||
-				box.max.y < this.min.y || box.min.y > this.max.y ||
-				box.max.z < this.min.z || box.min.z > this.max.z ? false : true;
-
-		},
-
-		intersectsSphere: ( function () {
-
-			var closestPoint = new Vector3();
-
-			return function intersectsSphere( sphere ) {
-
-				// Find the point on the AABB closest to the sphere center.
-				this.clampPoint( sphere.center, closestPoint );
-
-				// If that point is inside the sphere, the AABB and sphere intersect.
-				return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );
-
-			};
-
-		} )(),
-
-		intersectsPlane: function ( plane ) {
-
-			// We compute the minimum and maximum dot product values. If those values
-			// are on the same side (back or front) of the plane, then there is no intersection.
-
-			var min, max;
-
-			if ( plane.normal.x > 0 ) {
-
-				min = plane.normal.x * this.min.x;
-				max = plane.normal.x * this.max.x;
-
-			} else {
-
-				min = plane.normal.x * this.max.x;
-				max = plane.normal.x * this.min.x;
-
-			}
-
-			if ( plane.normal.y > 0 ) {
-
-				min += plane.normal.y * this.min.y;
-				max += plane.normal.y * this.max.y;
-
-			} else {
-
-				min += plane.normal.y * this.max.y;
-				max += plane.normal.y * this.min.y;
-
-			}
-
-			if ( plane.normal.z > 0 ) {
-
-				min += plane.normal.z * this.min.z;
-				max += plane.normal.z * this.max.z;
-
-			} else {
-
-				min += plane.normal.z * this.max.z;
-				max += plane.normal.z * this.min.z;
-
-			}
-
-			return ( min <= plane.constant && max >= plane.constant );
-
-		},
-
-		intersectsTriangle: ( function () {
-
-			// triangle centered vertices
-			var v0 = new Vector3();
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			// triangle edge vectors
-			var f0 = new Vector3();
-			var f1 = new Vector3();
-			var f2 = new Vector3();
-
-			var testAxis = new Vector3();
-
-			var center = new Vector3();
-			var extents = new Vector3();
-
-			var triangleNormal = new Vector3();
-
-			function satForAxes( axes ) {
-
-				var i, j;
-
-				for ( i = 0, j = axes.length - 3; i <= j; i += 3 ) {
-
-					testAxis.fromArray( axes, i );
-					// project the aabb onto the seperating axis
-					var r = extents.x * Math.abs( testAxis.x ) + extents.y * Math.abs( testAxis.y ) + extents.z * Math.abs( testAxis.z );
-					// project all 3 vertices of the triangle onto the seperating axis
-					var p0 = v0.dot( testAxis );
-					var p1 = v1.dot( testAxis );
-					var p2 = v2.dot( testAxis );
-					// actual test, basically see if either of the most extreme of the triangle points intersects r
-					if ( Math.max( - Math.max( p0, p1, p2 ), Math.min( p0, p1, p2 ) ) > r ) {
-
-						// points of the projected triangle are outside the projected half-length of the aabb
-						// the axis is seperating and we can exit
-						return false;
-
-					}
-
-				}
-
-				return true;
-
-			}
-
-			return function intersectsTriangle( triangle ) {
-
-				if ( this.isEmpty() ) {
-
-					return false;
-
-				}
-
-				// compute box center and extents
-				this.getCenter( center );
-				extents.subVectors( this.max, center );
-
-				// translate triangle to aabb origin
-				v0.subVectors( triangle.a, center );
-				v1.subVectors( triangle.b, center );
-				v2.subVectors( triangle.c, center );
-
-				// compute edge vectors for triangle
-				f0.subVectors( v1, v0 );
-				f1.subVectors( v2, v1 );
-				f2.subVectors( v0, v2 );
-
-				// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
-				// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
-				// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
-				var axes = [
-					0, - f0.z, f0.y, 0, - f1.z, f1.y, 0, - f2.z, f2.y,
-					f0.z, 0, - f0.x, f1.z, 0, - f1.x, f2.z, 0, - f2.x,
-					- f0.y, f0.x, 0, - f1.y, f1.x, 0, - f2.y, f2.x, 0
-				];
-				if ( ! satForAxes( axes ) ) {
-
-					return false;
-
-				}
-
-				// test 3 face normals from the aabb
-				axes = [ 1, 0, 0, 0, 1, 0, 0, 0, 1 ];
-				if ( ! satForAxes( axes ) ) {
-
-					return false;
-
-				}
-
-				// finally testing the face normal of the triangle
-				// use already existing triangle edge vectors here
-				triangleNormal.crossVectors( f0, f1 );
-				axes = [ triangleNormal.x, triangleNormal.y, triangleNormal.z ];
-				return satForAxes( axes );
-
-			};
-
-		} )(),
-
-		clampPoint: function ( point, optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-			return result.copy( point ).clamp( this.min, this.max );
-
-		},
-
-		distanceToPoint: function () {
-
-			var v1 = new Vector3();
-
-			return function distanceToPoint( point ) {
-
-				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
-				return clampedPoint.sub( point ).length();
-
-			};
-
-		}(),
-
-		getBoundingSphere: function () {
-
-			var v1 = new Vector3();
-
-			return function getBoundingSphere( optionalTarget ) {
-
-				var result = optionalTarget || new Sphere();
-
-				this.getCenter( result.center );
-
-				result.radius = this.getSize( v1 ).length() * 0.5;
-
-				return result;
-
-			};
-
-		}(),
-
-		intersect: function ( box ) {
-
-			this.min.max( box.min );
-			this.max.min( box.max );
-
-			// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
-			if ( this.isEmpty() ) this.makeEmpty();
-
-			return this;
-
-		},
-
-		union: function ( box ) {
-
-			this.min.min( box.min );
-			this.max.max( box.max );
-
-			return this;
-
-		},
-
-		applyMatrix4: function () {
-
-			var points = [
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3(),
-				new Vector3()
-			];
-
-			return function applyMatrix4( matrix ) {
-
-				// transform of empty box is an empty box.
-				if ( this.isEmpty() ) return this;
-
-				// NOTE: I am using a binary pattern to specify all 2^3 combinations below
-				points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
-				points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
-				points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
-				points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
-				points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
-				points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
-				points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
-				points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix );	// 111
-
-				this.setFromPoints( points );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function ( offset ) {
-
-			this.min.add( offset );
-			this.max.add( offset );
-
-			return this;
-
-		},
-
-		equals: function ( box ) {
-
-			return box.min.equals( this.min ) && box.max.equals( this.max );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Sphere( center, radius ) {
-
-		this.center = ( center !== undefined ) ? center : new Vector3();
-		this.radius = ( radius !== undefined ) ? radius : 0;
-
-	}
-
-	Object.assign( Sphere.prototype, {
-
-		set: function ( center, radius ) {
-
-			this.center.copy( center );
-			this.radius = radius;
-
-			return this;
-
-		},
-
-		setFromPoints: function () {
-
-			var box = new Box3();
-
-			return function setFromPoints( points, optionalCenter ) {
-
-				var center = this.center;
-
-				if ( optionalCenter !== undefined ) {
-
-					center.copy( optionalCenter );
-
-				} else {
-
-					box.setFromPoints( points ).getCenter( center );
-
-				}
-
-				var maxRadiusSq = 0;
-
-				for ( var i = 0, il = points.length; i < il; i ++ ) {
-
-					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );
-
-				}
-
-				this.radius = Math.sqrt( maxRadiusSq );
-
-				return this;
-
-			};
-
-		}(),
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( sphere ) {
-
-			this.center.copy( sphere.center );
-			this.radius = sphere.radius;
-
-			return this;
-
-		},
-
-		empty: function () {
-
-			return ( this.radius <= 0 );
-
-		},
-
-		containsPoint: function ( point ) {
-
-			return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );
-
-		},
-
-		distanceToPoint: function ( point ) {
-
-			return ( point.distanceTo( this.center ) - this.radius );
-
-		},
-
-		intersectsSphere: function ( sphere ) {
-
-			var radiusSum = this.radius + sphere.radius;
-
-			return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			return box.intersectsSphere( this );
-
-		},
-
-		intersectsPlane: function ( plane ) {
-
-			return Math.abs( plane.distanceToPoint( this.center ) ) <= this.radius;
-
-		},
-
-		clampPoint: function ( point, optionalTarget ) {
-
-			var deltaLengthSq = this.center.distanceToSquared( point );
-
-			var result = optionalTarget || new Vector3();
-
-			result.copy( point );
-
-			if ( deltaLengthSq > ( this.radius * this.radius ) ) {
-
-				result.sub( this.center ).normalize();
-				result.multiplyScalar( this.radius ).add( this.center );
-
-			}
-
-			return result;
-
-		},
-
-		getBoundingBox: function ( optionalTarget ) {
-
-			var box = optionalTarget || new Box3();
-
-			box.set( this.center, this.center );
-			box.expandByScalar( this.radius );
-
-			return box;
-
-		},
-
-		applyMatrix4: function ( matrix ) {
-
-			this.center.applyMatrix4( matrix );
-			this.radius = this.radius * matrix.getMaxScaleOnAxis();
-
-			return this;
-
-		},
-
-		translate: function ( offset ) {
-
-			this.center.add( offset );
-
-			return this;
-
-		},
-
-		equals: function ( sphere ) {
-
-			return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Plane( normal, constant ) {
-
-		// normal is assumed to be normalized
-
-		this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
-		this.constant = ( constant !== undefined ) ? constant : 0;
-
-	}
-
-	Object.assign( Plane.prototype, {
-
-		set: function ( normal, constant ) {
-
-			this.normal.copy( normal );
-			this.constant = constant;
-
-			return this;
-
-		},
-
-		setComponents: function ( x, y, z, w ) {
-
-			this.normal.set( x, y, z );
-			this.constant = w;
-
-			return this;
-
-		},
-
-		setFromNormalAndCoplanarPoint: function ( normal, point ) {
-
-			this.normal.copy( normal );
-			this.constant = - point.dot( this.normal );
-
-			return this;
-
-		},
-
-		setFromCoplanarPoints: function () {
-
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			return function setFromCoplanarPoints( a, b, c ) {
-
-				var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();
-
-				// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
-
-				this.setFromNormalAndCoplanarPoint( normal, a );
-
-				return this;
-
-			};
-
-		}(),
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( plane ) {
-
-			this.normal.copy( plane.normal );
-			this.constant = plane.constant;
-
-			return this;
-
-		},
-
-		normalize: function () {
-
-			// Note: will lead to a divide by zero if the plane is invalid.
-
-			var inverseNormalLength = 1.0 / this.normal.length();
-			this.normal.multiplyScalar( inverseNormalLength );
-			this.constant *= inverseNormalLength;
-
-			return this;
-
-		},
-
-		negate: function () {
-
-			this.constant *= - 1;
-			this.normal.negate();
-
-			return this;
-
-		},
-
-		distanceToPoint: function ( point ) {
-
-			return this.normal.dot( point ) + this.constant;
-
-		},
-
-		distanceToSphere: function ( sphere ) {
-
-			return this.distanceToPoint( sphere.center ) - sphere.radius;
-
-		},
-
-		projectPoint: function ( point, optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-
-			return result.copy( this.normal ).multiplyScalar( - this.distanceToPoint( point ) ).add( point );
-
-		},
-
-		intersectLine: function () {
-
-			var v1 = new Vector3();
-
-			return function intersectLine( line, optionalTarget ) {
-
-				var result = optionalTarget || new Vector3();
-
-				var direction = line.delta( v1 );
-
-				var denominator = this.normal.dot( direction );
-
-				if ( denominator === 0 ) {
-
-					// line is coplanar, return origin
-					if ( this.distanceToPoint( line.start ) === 0 ) {
-
-						return result.copy( line.start );
-
-					}
-
-					// Unsure if this is the correct method to handle this case.
-					return undefined;
-
-				}
-
-				var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;
-
-				if ( t < 0 || t > 1 ) {
-
-					return undefined;
-
-				}
-
-				return result.copy( direction ).multiplyScalar( t ).add( line.start );
-
-			};
-
-		}(),
-
-		intersectsLine: function ( line ) {
-
-			// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
-
-			var startSign = this.distanceToPoint( line.start );
-			var endSign = this.distanceToPoint( line.end );
-
-			return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			return box.intersectsPlane( this );
-
-		},
-
-		intersectsSphere: function ( sphere ) {
-
-			return sphere.intersectsPlane( this );
-
-		},
-
-		coplanarPoint: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-
-			return result.copy( this.normal ).multiplyScalar( - this.constant );
-
-		},
-
-		applyMatrix4: function () {
-
-			var v1 = new Vector3();
-			var m1 = new Matrix3();
-
-			return function applyMatrix4( matrix, optionalNormalMatrix ) {
-
-				var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );
-
-				var referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );
-
-				var normal = this.normal.applyMatrix3( normalMatrix ).normalize();
-
-				this.constant = - referencePoint.dot( normal );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function ( offset ) {
-
-			this.constant -= offset.dot( this.normal );
-
-			return this;
-
-		},
-
-		equals: function ( plane ) {
-
-			return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Frustum( p0, p1, p2, p3, p4, p5 ) {
-
-		this.planes = [
-
-			( p0 !== undefined ) ? p0 : new Plane(),
-			( p1 !== undefined ) ? p1 : new Plane(),
-			( p2 !== undefined ) ? p2 : new Plane(),
-			( p3 !== undefined ) ? p3 : new Plane(),
-			( p4 !== undefined ) ? p4 : new Plane(),
-			( p5 !== undefined ) ? p5 : new Plane()
-
-		];
-
-	}
-
-	Object.assign( Frustum.prototype, {
-
-		set: function ( p0, p1, p2, p3, p4, p5 ) {
-
-			var planes = this.planes;
-
-			planes[ 0 ].copy( p0 );
-			planes[ 1 ].copy( p1 );
-			planes[ 2 ].copy( p2 );
-			planes[ 3 ].copy( p3 );
-			planes[ 4 ].copy( p4 );
-			planes[ 5 ].copy( p5 );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( frustum ) {
-
-			var planes = this.planes;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				planes[ i ].copy( frustum.planes[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-		setFromMatrix: function ( m ) {
-
-			var planes = this.planes;
-			var me = m.elements;
-			var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
-			var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
-			var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
-			var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];
-
-			planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
-			planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
-			planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
-			planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
-			planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
-			planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();
-
-			return this;
-
-		},
-
-		intersectsObject: function () {
-
-			var sphere = new Sphere();
-
-			return function intersectsObject( object ) {
-
-				var geometry = object.geometry;
-
-				if ( geometry.boundingSphere === null )
-					geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere )
-					.applyMatrix4( object.matrixWorld );
-
-				return this.intersectsSphere( sphere );
-
-			};
-
-		}(),
-
-		intersectsSprite: function () {
-
-			var sphere = new Sphere();
-
-			return function intersectsSprite( sprite ) {
-
-				sphere.center.set( 0, 0, 0 );
-				sphere.radius = 0.7071067811865476;
-				sphere.applyMatrix4( sprite.matrixWorld );
-
-				return this.intersectsSphere( sphere );
-
-			};
-
-		}(),
-
-		intersectsSphere: function ( sphere ) {
-
-			var planes = this.planes;
-			var center = sphere.center;
-			var negRadius = - sphere.radius;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				var distance = planes[ i ].distanceToPoint( center );
-
-				if ( distance < negRadius ) {
-
-					return false;
-
-				}
-
-			}
-
-			return true;
-
-		},
-
-		intersectsBox: function () {
-
-			var p1 = new Vector3(),
-				p2 = new Vector3();
-
-			return function intersectsBox( box ) {
-
-				var planes = this.planes;
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					var plane = planes[ i ];
-
-					p1.x = plane.normal.x > 0 ? box.min.x : box.max.x;
-					p2.x = plane.normal.x > 0 ? box.max.x : box.min.x;
-					p1.y = plane.normal.y > 0 ? box.min.y : box.max.y;
-					p2.y = plane.normal.y > 0 ? box.max.y : box.min.y;
-					p1.z = plane.normal.z > 0 ? box.min.z : box.max.z;
-					p2.z = plane.normal.z > 0 ? box.max.z : box.min.z;
-
-					var d1 = plane.distanceToPoint( p1 );
-					var d2 = plane.distanceToPoint( p2 );
-
-					// if both outside plane, no intersection
-
-					if ( d1 < 0 && d2 < 0 ) {
-
-						return false;
-
-					}
-
-				}
-
-				return true;
-
-			};
-
-		}(),
-
-		containsPoint: function ( point ) {
-
-			var planes = this.planes;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				if ( planes[ i ].distanceToPoint( point ) < 0 ) {
-
-					return false;
-
-				}
-
-			}
-
-			return true;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLShadowMap( _renderer, _objects, maxTextureSize ) {
-
-		var _frustum = new Frustum(),
-			_projScreenMatrix = new Matrix4(),
-
-			_shadowMapSize = new Vector2(),
-			_maxShadowMapSize = new Vector2( maxTextureSize, maxTextureSize ),
-
-			_lookTarget = new Vector3(),
-			_lightPositionWorld = new Vector3(),
-
-			_MorphingFlag = 1,
-			_SkinningFlag = 2,
-
-			_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,
-
-			_depthMaterials = new Array( _NumberOfMaterialVariants ),
-			_distanceMaterials = new Array( _NumberOfMaterialVariants ),
-
-			_materialCache = {};
-
-		var shadowSide = { 0: BackSide, 1: FrontSide, 2: DoubleSide };
-
-		var cubeDirections = [
-			new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
-			new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
-		];
-
-		var cubeUps = [
-			new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
-			new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
-		];
-
-		var cube2DViewPorts = [
-			new Vector4(), new Vector4(), new Vector4(),
-			new Vector4(), new Vector4(), new Vector4()
-		];
-
-		// init
-
-		for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {
-
-			var useMorphing = ( i & _MorphingFlag ) !== 0;
-			var useSkinning = ( i & _SkinningFlag ) !== 0;
-
-			var depthMaterial = new MeshDepthMaterial( {
-
-				depthPacking: RGBADepthPacking,
-
-				morphTargets: useMorphing,
-				skinning: useSkinning
-
-			} );
-
-			_depthMaterials[ i ] = depthMaterial;
-
-			//
-
-			var distanceMaterial = new MeshDistanceMaterial( {
-
-				morphTargets: useMorphing,
-				skinning: useSkinning
-
-			} );
-
-			_distanceMaterials[ i ] = distanceMaterial;
-
-		}
-
-		//
-
-		var scope = this;
-
-		this.enabled = false;
-
-		this.autoUpdate = true;
-		this.needsUpdate = false;
-
-		this.type = PCFShadowMap;
-
-		this.render = function ( lights, scene, camera ) {
-
-			if ( scope.enabled === false ) return;
-			if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;
-
-			if ( lights.length === 0 ) return;
-
-			// TODO Clean up (needed in case of contextlost)
-			var _gl = _renderer.context;
-			var _state = _renderer.state;
-
-			// Set GL state for depth map.
-			_state.disable( _gl.BLEND );
-			_state.buffers.color.setClear( 1, 1, 1, 1 );
-			_state.buffers.depth.setTest( true );
-			_state.setScissorTest( false );
-
-			// render depth map
-
-			var faceCount;
-
-			for ( var i = 0, il = lights.length; i < il; i ++ ) {
-
-				var light = lights[ i ];
-				var shadow = light.shadow;
-				var isPointLight = light && light.isPointLight;
-
-				if ( shadow === undefined ) {
-
-					console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
-					continue;
-
-				}
-
-				var shadowCamera = shadow.camera;
-
-				_shadowMapSize.copy( shadow.mapSize );
-				_shadowMapSize.min( _maxShadowMapSize );
-
-				if ( isPointLight ) {
-
-					var vpWidth = _shadowMapSize.x;
-					var vpHeight = _shadowMapSize.y;
-
-					// These viewports map a cube-map onto a 2D texture with the
-					// following orientation:
-					//
-					//  xzXZ
-					//   y Y
-					//
-					// X - Positive x direction
-					// x - Negative x direction
-					// Y - Positive y direction
-					// y - Negative y direction
-					// Z - Positive z direction
-					// z - Negative z direction
-
-					// positive X
-					cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );
-					// negative X
-					cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );
-					// positive Z
-					cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );
-					// negative Z
-					cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );
-					// positive Y
-					cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );
-					// negative Y
-					cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );
-
-					_shadowMapSize.x *= 4.0;
-					_shadowMapSize.y *= 2.0;
-
-				}
-
-				if ( shadow.map === null ) {
-
-					var pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };
-
-					shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
-					shadow.map.texture.name = light.name + ".shadowMap";
-
-					shadowCamera.updateProjectionMatrix();
-
-				}
-
-				if ( shadow.isSpotLightShadow ) {
-
-					shadow.update( light );
-
-				}
-
-				var shadowMap = shadow.map;
-				var shadowMatrix = shadow.matrix;
-
-				_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
-				shadowCamera.position.copy( _lightPositionWorld );
-
-				if ( isPointLight ) {
-
-					faceCount = 6;
-
-					// for point lights we set the shadow matrix to be a translation-only matrix
-					// equal to inverse of the light's position
-
-					shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );
-
-				} else {
-
-					faceCount = 1;
-
-					_lookTarget.setFromMatrixPosition( light.target.matrixWorld );
-					shadowCamera.lookAt( _lookTarget );
-					shadowCamera.updateMatrixWorld();
-
-					// compute shadow matrix
-
-					shadowMatrix.set(
-						0.5, 0.0, 0.0, 0.5,
-						0.0, 0.5, 0.0, 0.5,
-						0.0, 0.0, 0.5, 0.5,
-						0.0, 0.0, 0.0, 1.0
-					);
-
-					shadowMatrix.multiply( shadowCamera.projectionMatrix );
-					shadowMatrix.multiply( shadowCamera.matrixWorldInverse );
-
-				}
-
-				_renderer.setRenderTarget( shadowMap );
-				_renderer.clear();
-
-				// render shadow map for each cube face (if omni-directional) or
-				// run a single pass if not
-
-				for ( var face = 0; face < faceCount; face ++ ) {
-
-					if ( isPointLight ) {
-
-						_lookTarget.copy( shadowCamera.position );
-						_lookTarget.add( cubeDirections[ face ] );
-						shadowCamera.up.copy( cubeUps[ face ] );
-						shadowCamera.lookAt( _lookTarget );
-						shadowCamera.updateMatrixWorld();
-
-						var vpDimensions = cube2DViewPorts[ face ];
-						_state.viewport( vpDimensions );
-
-					}
-
-					// update camera matrices and frustum
-
-					_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
-					_frustum.setFromMatrix( _projScreenMatrix );
-
-					// set object matrices & frustum culling
-
-					renderObject( scene, camera, shadowCamera, isPointLight );
-
-				}
-
-			}
-
-			scope.needsUpdate = false;
-
-		};
-
-		function getDepthMaterial( object, material, isPointLight, lightPositionWorld, shadowCameraNear, shadowCameraFar ) {
-
-			var geometry = object.geometry;
-
-			var result = null;
-
-			var materialVariants = _depthMaterials;
-			var customMaterial = object.customDepthMaterial;
-
-			if ( isPointLight ) {
-
-				materialVariants = _distanceMaterials;
-				customMaterial = object.customDistanceMaterial;
-
-			}
-
-			if ( ! customMaterial ) {
-
-				var useMorphing = false;
-
-				if ( material.morphTargets ) {
-
-					if ( geometry && geometry.isBufferGeometry ) {
-
-						useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;
-
-					} else if ( geometry && geometry.isGeometry ) {
-
-						useMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;
-
-					}
-
-				}
-
-				if ( object.isSkinnedMesh && material.skinning === false ) {
-
-					console.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );
-
-				}
-
-				var useSkinning = object.isSkinnedMesh && material.skinning;
-
-				var variantIndex = 0;
-
-				if ( useMorphing ) variantIndex |= _MorphingFlag;
-				if ( useSkinning ) variantIndex |= _SkinningFlag;
-
-				result = materialVariants[ variantIndex ];
-
-			} else {
-
-				result = customMaterial;
-
-			}
-
-			if ( _renderer.localClippingEnabled &&
-					material.clipShadows === true &&
-					material.clippingPlanes.length !== 0 ) {
-
-				// in this case we need a unique material instance reflecting the
-				// appropriate state
-
-				var keyA = result.uuid, keyB = material.uuid;
-
-				var materialsForVariant = _materialCache[ keyA ];
-
-				if ( materialsForVariant === undefined ) {
-
-					materialsForVariant = {};
-					_materialCache[ keyA ] = materialsForVariant;
-
-				}
-
-				var cachedMaterial = materialsForVariant[ keyB ];
-
-				if ( cachedMaterial === undefined ) {
-
-					cachedMaterial = result.clone();
-					materialsForVariant[ keyB ] = cachedMaterial;
-
-				}
-
-				result = cachedMaterial;
-
-			}
-
-			result.visible = material.visible;
-			result.wireframe = material.wireframe;
-
-			result.side = ( material.shadowSide != null ) ? material.shadowSide : shadowSide[ material.side ];
-
-			result.clipShadows = material.clipShadows;
-			result.clippingPlanes = material.clippingPlanes;
-			result.clipIntersection = material.clipIntersection;
-
-			result.wireframeLinewidth = material.wireframeLinewidth;
-			result.linewidth = material.linewidth;
-
-			if ( isPointLight && result.isMeshDistanceMaterial ) {
-
-				result.referencePosition.copy( lightPositionWorld );
-				result.nearDistance = shadowCameraNear;
-				result.farDistance = shadowCameraFar;
-
-			}
-
-			return result;
-
-		}
-
-		function renderObject( object, camera, shadowCamera, isPointLight ) {
-
-			if ( object.visible === false ) return;
-
-			var visible = object.layers.test( camera.layers );
-
-			if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {
-
-				if ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {
-
-					object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );
-
-					var geometry = _objects.update( object );
-					var material = object.material;
-
-					if ( Array.isArray( material ) ) {
-
-						var groups = geometry.groups;
-
-						for ( var k = 0, kl = groups.length; k < kl; k ++ ) {
-
-							var group = groups[ k ];
-							var groupMaterial = material[ group.materialIndex ];
-
-							if ( groupMaterial && groupMaterial.visible ) {
-
-								var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
-								_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );
-
-							}
-
-						}
-
-					} else if ( material.visible ) {
-
-						var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld, shadowCamera.near, shadowCamera.far );
-						_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );
-
-					}
-
-				}
-
-			}
-
-			var children = object.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				renderObject( children[ i ], camera, shadowCamera, isPointLight );
-
-			}
-
-		}
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLAttributes( gl ) {
-
-		var buffers = {};
-
-		function createBuffer( attribute, bufferType ) {
-
-			var array = attribute.array;
-			var usage = attribute.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;
-
-			var buffer = gl.createBuffer();
-
-			gl.bindBuffer( bufferType, buffer );
-			gl.bufferData( bufferType, array, usage );
-
-			attribute.onUploadCallback();
-
-			var type = gl.FLOAT;
-
-			if ( array instanceof Float32Array ) {
-
-				type = gl.FLOAT;
-
-			} else if ( array instanceof Float64Array ) {
-
-				console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );
-
-			} else if ( array instanceof Uint16Array ) {
-
-				type = gl.UNSIGNED_SHORT;
-
-			} else if ( array instanceof Int16Array ) {
-
-				type = gl.SHORT;
-
-			} else if ( array instanceof Uint32Array ) {
-
-				type = gl.UNSIGNED_INT;
-
-			} else if ( array instanceof Int32Array ) {
-
-				type = gl.INT;
-
-			} else if ( array instanceof Int8Array ) {
-
-				type = gl.BYTE;
-
-			} else if ( array instanceof Uint8Array ) {
-
-				type = gl.UNSIGNED_BYTE;
-
-			}
-
-			return {
-				buffer: buffer,
-				type: type,
-				bytesPerElement: array.BYTES_PER_ELEMENT,
-				version: attribute.version
-			};
-
-		}
-
-		function updateBuffer( buffer, attribute, bufferType ) {
-
-			var array = attribute.array;
-			var updateRange = attribute.updateRange;
-
-			gl.bindBuffer( bufferType, buffer );
-
-			if ( attribute.dynamic === false ) {
-
-				gl.bufferData( bufferType, array, gl.STATIC_DRAW );
-
-			} else if ( updateRange.count === - 1 ) {
-
-				// Not using update ranges
-
-				gl.bufferSubData( bufferType, 0, array );
-
-			} else if ( updateRange.count === 0 ) {
-
-				console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );
-
-			} else {
-
-				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
-					array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );
-
-				updateRange.count = - 1; // reset range
-
-			}
-
-		}
-
-		//
-
-		function get( attribute ) {
-
-			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
-
-			return buffers[ attribute.uuid ];
-
-		}
-
-		function remove( attribute ) {
-
-			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
-
-			var data = buffers[ attribute.uuid ];
-
-			if ( data ) {
-
-				gl.deleteBuffer( data.buffer );
-
-				delete buffers[ attribute.uuid ];
-
-			}
-
-		}
-
-		function update( attribute, bufferType ) {
-
-			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
-
-			var data = buffers[ attribute.uuid ];
-
-			if ( data === undefined ) {
-
-				buffers[ attribute.uuid ] = createBuffer( attribute, bufferType );
-
-			} else if ( data.version < attribute.version ) {
-
-				updateBuffer( data.buffer, attribute, bufferType );
-
-				data.version = attribute.version;
-
-			}
-
-		}
-
-		return {
-
-			get: get,
-			remove: remove,
-			update: update
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Euler( x, y, z, order ) {
-
-		this._x = x || 0;
-		this._y = y || 0;
-		this._z = z || 0;
-		this._order = order || Euler.DefaultOrder;
-
-	}
-
-	Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];
-
-	Euler.DefaultOrder = 'XYZ';
-
-	Object.defineProperties( Euler.prototype, {
-
-		x: {
-
-			get: function () {
-
-				return this._x;
-
-			},
-
-			set: function ( value ) {
-
-				this._x = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		y: {
-
-			get: function () {
-
-				return this._y;
-
-			},
-
-			set: function ( value ) {
-
-				this._y = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		z: {
-
-			get: function () {
-
-				return this._z;
-
-			},
-
-			set: function ( value ) {
-
-				this._z = value;
-				this.onChangeCallback();
-
-			}
-
-		},
-
-		order: {
-
-			get: function () {
-
-				return this._order;
-
-			},
-
-			set: function ( value ) {
-
-				this._order = value;
-				this.onChangeCallback();
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( Euler.prototype, {
-
-		isEuler: true,
-
-		set: function ( x, y, z, order ) {
-
-			this._x = x;
-			this._y = y;
-			this._z = z;
-			this._order = order || this._order;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this._x, this._y, this._z, this._order );
-
-		},
-
-		copy: function ( euler ) {
-
-			this._x = euler._x;
-			this._y = euler._y;
-			this._z = euler._z;
-			this._order = euler._order;
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromRotationMatrix: function ( m, order, update ) {
-
-			var clamp = _Math.clamp;
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			var te = m.elements;
-			var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
-			var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
-			var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];
-
-			order = order || this._order;
-
-			if ( order === 'XYZ' ) {
-
-				this._y = Math.asin( clamp( m13, - 1, 1 ) );
-
-				if ( Math.abs( m13 ) < 0.99999 ) {
-
-					this._x = Math.atan2( - m23, m33 );
-					this._z = Math.atan2( - m12, m11 );
-
-				} else {
-
-					this._x = Math.atan2( m32, m22 );
-					this._z = 0;
-
-				}
-
-			} else if ( order === 'YXZ' ) {
-
-				this._x = Math.asin( - clamp( m23, - 1, 1 ) );
-
-				if ( Math.abs( m23 ) < 0.99999 ) {
-
-					this._y = Math.atan2( m13, m33 );
-					this._z = Math.atan2( m21, m22 );
-
-				} else {
-
-					this._y = Math.atan2( - m31, m11 );
-					this._z = 0;
-
-				}
-
-			} else if ( order === 'ZXY' ) {
-
-				this._x = Math.asin( clamp( m32, - 1, 1 ) );
-
-				if ( Math.abs( m32 ) < 0.99999 ) {
-
-					this._y = Math.atan2( - m31, m33 );
-					this._z = Math.atan2( - m12, m22 );
-
-				} else {
-
-					this._y = 0;
-					this._z = Math.atan2( m21, m11 );
-
-				}
-
-			} else if ( order === 'ZYX' ) {
-
-				this._y = Math.asin( - clamp( m31, - 1, 1 ) );
-
-				if ( Math.abs( m31 ) < 0.99999 ) {
-
-					this._x = Math.atan2( m32, m33 );
-					this._z = Math.atan2( m21, m11 );
-
-				} else {
-
-					this._x = 0;
-					this._z = Math.atan2( - m12, m22 );
-
-				}
-
-			} else if ( order === 'YZX' ) {
-
-				this._z = Math.asin( clamp( m21, - 1, 1 ) );
-
-				if ( Math.abs( m21 ) < 0.99999 ) {
-
-					this._x = Math.atan2( - m23, m22 );
-					this._y = Math.atan2( - m31, m11 );
-
-				} else {
-
-					this._x = 0;
-					this._y = Math.atan2( m13, m33 );
-
-				}
-
-			} else if ( order === 'XZY' ) {
-
-				this._z = Math.asin( - clamp( m12, - 1, 1 ) );
-
-				if ( Math.abs( m12 ) < 0.99999 ) {
-
-					this._x = Math.atan2( m32, m22 );
-					this._y = Math.atan2( m13, m11 );
-
-				} else {
-
-					this._x = Math.atan2( - m23, m33 );
-					this._y = 0;
-
-				}
-
-			} else {
-
-				console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );
-
-			}
-
-			this._order = order;
-
-			if ( update !== false ) this.onChangeCallback();
-
-			return this;
-
-		},
-
-		setFromQuaternion: function () {
-
-			var matrix = new Matrix4();
-
-			return function setFromQuaternion( q, order, update ) {
-
-				matrix.makeRotationFromQuaternion( q );
-
-				return this.setFromRotationMatrix( matrix, order, update );
-
-			};
-
-		}(),
-
-		setFromVector3: function ( v, order ) {
-
-			return this.set( v.x, v.y, v.z, order || this._order );
-
-		},
-
-		reorder: function () {
-
-			// WARNING: this discards revolution information -bhouston
-
-			var q = new Quaternion();
-
-			return function reorder( newOrder ) {
-
-				q.setFromEuler( this );
-
-				return this.setFromQuaternion( q, newOrder );
-
-			};
-
-		}(),
-
-		equals: function ( euler ) {
-
-			return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );
-
-		},
-
-		fromArray: function ( array ) {
-
-			this._x = array[ 0 ];
-			this._y = array[ 1 ];
-			this._z = array[ 2 ];
-			if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];
-
-			this.onChangeCallback();
-
-			return this;
-
-		},
-
-		toArray: function ( array, offset ) {
-
-			if ( array === undefined ) array = [];
-			if ( offset === undefined ) offset = 0;
-
-			array[ offset ] = this._x;
-			array[ offset + 1 ] = this._y;
-			array[ offset + 2 ] = this._z;
-			array[ offset + 3 ] = this._order;
-
-			return array;
-
-		},
-
-		toVector3: function ( optionalResult ) {
-
-			if ( optionalResult ) {
-
-				return optionalResult.set( this._x, this._y, this._z );
-
-			} else {
-
-				return new Vector3( this._x, this._y, this._z );
-
-			}
-
-		},
-
-		onChange: function ( callback ) {
-
-			this.onChangeCallback = callback;
-
-			return this;
-
-		},
-
-		onChangeCallback: function () {}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Layers() {
-
-		this.mask = 1 | 0;
-
-	}
-
-	Object.assign( Layers.prototype, {
-
-		set: function ( channel ) {
-
-			this.mask = 1 << channel | 0;
-
-		},
-
-		enable: function ( channel ) {
-
-			this.mask |= 1 << channel | 0;
-
-		},
-
-		toggle: function ( channel ) {
-
-			this.mask ^= 1 << channel | 0;
-
-		},
-
-		disable: function ( channel ) {
-
-			this.mask &= ~ ( 1 << channel | 0 );
-
-		},
-
-		test: function ( layers ) {
-
-			return ( this.mask & layers.mask ) !== 0;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author elephantatwork / www.elephantatwork.ch
-	 */
-
-	var object3DId = 0;
-
-	function Object3D() {
-
-		Object.defineProperty( this, 'id', { value: object3DId ++ } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'Object3D';
-
-		this.parent = null;
-		this.children = [];
-
-		this.up = Object3D.DefaultUp.clone();
-
-		var position = new Vector3();
-		var rotation = new Euler();
-		var quaternion = new Quaternion();
-		var scale = new Vector3( 1, 1, 1 );
-
-		function onRotationChange() {
-
-			quaternion.setFromEuler( rotation, false );
-
-		}
-
-		function onQuaternionChange() {
-
-			rotation.setFromQuaternion( quaternion, undefined, false );
-
-		}
-
-		rotation.onChange( onRotationChange );
-		quaternion.onChange( onQuaternionChange );
-
-		Object.defineProperties( this, {
-			position: {
-				enumerable: true,
-				value: position
-			},
-			rotation: {
-				enumerable: true,
-				value: rotation
-			},
-			quaternion: {
-				enumerable: true,
-				value: quaternion
-			},
-			scale: {
-				enumerable: true,
-				value: scale
-			},
-			modelViewMatrix: {
-				value: new Matrix4()
-			},
-			normalMatrix: {
-				value: new Matrix3()
-			}
-		} );
-
-		this.matrix = new Matrix4();
-		this.matrixWorld = new Matrix4();
-
-		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
-		this.matrixWorldNeedsUpdate = false;
-
-		this.layers = new Layers();
-		this.visible = true;
-
-		this.castShadow = false;
-		this.receiveShadow = false;
-
-		this.frustumCulled = true;
-		this.renderOrder = 0;
-
-		this.userData = {};
-
-	}
-
-	Object3D.DefaultUp = new Vector3( 0, 1, 0 );
-	Object3D.DefaultMatrixAutoUpdate = true;
-
-	Object3D.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Object3D,
-
-		isObject3D: true,
-
-		onBeforeRender: function () {},
-		onAfterRender: function () {},
-
-		applyMatrix: function ( matrix ) {
-
-			this.matrix.multiplyMatrices( matrix, this.matrix );
-
-			this.matrix.decompose( this.position, this.quaternion, this.scale );
-
-		},
-
-		applyQuaternion: function ( q ) {
-
-			this.quaternion.premultiply( q );
-
-			return this;
-
-		},
-
-		setRotationFromAxisAngle: function ( axis, angle ) {
-
-			// assumes axis is normalized
-
-			this.quaternion.setFromAxisAngle( axis, angle );
-
-		},
-
-		setRotationFromEuler: function ( euler ) {
-
-			this.quaternion.setFromEuler( euler, true );
-
-		},
-
-		setRotationFromMatrix: function ( m ) {
-
-			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
-
-			this.quaternion.setFromRotationMatrix( m );
-
-		},
-
-		setRotationFromQuaternion: function ( q ) {
-
-			// assumes q is normalized
-
-			this.quaternion.copy( q );
-
-		},
-
-		rotateOnAxis: function () {
-
-			// rotate object on axis in object space
-			// axis is assumed to be normalized
-
-			var q1 = new Quaternion();
-
-			return function rotateOnAxis( axis, angle ) {
-
-				q1.setFromAxisAngle( axis, angle );
-
-				this.quaternion.multiply( q1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateOnWorldAxis: function () {
-
-			// rotate object on axis in world space
-			// axis is assumed to be normalized
-			// method assumes no rotated parent
-
-			var q1 = new Quaternion();
-
-			return function rotateOnWorldAxis( axis, angle ) {
-
-				q1.setFromAxisAngle( axis, angle );
-
-				this.quaternion.premultiply( q1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateX: function () {
-
-			var v1 = new Vector3( 1, 0, 0 );
-
-			return function rotateX( angle ) {
-
-				return this.rotateOnAxis( v1, angle );
-
-			};
-
-		}(),
-
-		rotateY: function () {
-
-			var v1 = new Vector3( 0, 1, 0 );
-
-			return function rotateY( angle ) {
-
-				return this.rotateOnAxis( v1, angle );
-
-			};
-
-		}(),
-
-		rotateZ: function () {
-
-			var v1 = new Vector3( 0, 0, 1 );
-
-			return function rotateZ( angle ) {
-
-				return this.rotateOnAxis( v1, angle );
-
-			};
-
-		}(),
-
-		translateOnAxis: function () {
-
-			// translate object by distance along axis in object space
-			// axis is assumed to be normalized
-
-			var v1 = new Vector3();
-
-			return function translateOnAxis( axis, distance ) {
-
-				v1.copy( axis ).applyQuaternion( this.quaternion );
-
-				this.position.add( v1.multiplyScalar( distance ) );
-
-				return this;
-
-			};
-
-		}(),
-
-		translateX: function () {
-
-			var v1 = new Vector3( 1, 0, 0 );
-
-			return function translateX( distance ) {
-
-				return this.translateOnAxis( v1, distance );
-
-			};
-
-		}(),
-
-		translateY: function () {
-
-			var v1 = new Vector3( 0, 1, 0 );
-
-			return function translateY( distance ) {
-
-				return this.translateOnAxis( v1, distance );
-
-			};
-
-		}(),
-
-		translateZ: function () {
-
-			var v1 = new Vector3( 0, 0, 1 );
-
-			return function translateZ( distance ) {
-
-				return this.translateOnAxis( v1, distance );
-
-			};
-
-		}(),
-
-		localToWorld: function ( vector ) {
-
-			return vector.applyMatrix4( this.matrixWorld );
-
-		},
-
-		worldToLocal: function () {
-
-			var m1 = new Matrix4();
-
-			return function worldToLocal( vector ) {
-
-				return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );
-
-			};
-
-		}(),
-
-		lookAt: function () {
-
-			// This method does not support objects with rotated and/or translated parent(s)
-
-			var m1 = new Matrix4();
-			var vector = new Vector3();
-
-			return function lookAt( x, y, z ) {
-
-				if ( x.isVector3 ) {
-
-					vector.copy( x );
-
-				} else {
-
-					vector.set( x, y, z );
-
-				}
-
-				if ( this.isCamera ) {
-
-					m1.lookAt( this.position, vector, this.up );
-
-				} else {
-
-					m1.lookAt( vector, this.position, this.up );
-
-				}
-
-				this.quaternion.setFromRotationMatrix( m1 );
-
-			};
-
-		}(),
-
-		add: function ( object ) {
-
-			if ( arguments.length > 1 ) {
-
-				for ( var i = 0; i < arguments.length; i ++ ) {
-
-					this.add( arguments[ i ] );
-
-				}
-
-				return this;
-
-			}
-
-			if ( object === this ) {
-
-				console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object );
-				return this;
-
-			}
-
-			if ( ( object && object.isObject3D ) ) {
-
-				if ( object.parent !== null ) {
-
-					object.parent.remove( object );
-
-				}
-
-				object.parent = this;
-				object.dispatchEvent( { type: 'added' } );
-
-				this.children.push( object );
-
-			} else {
-
-				console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object );
-
-			}
-
-			return this;
-
-		},
-
-		remove: function ( object ) {
-
-			if ( arguments.length > 1 ) {
-
-				for ( var i = 0; i < arguments.length; i ++ ) {
-
-					this.remove( arguments[ i ] );
-
-				}
-
-				return this;
-
-			}
-
-			var index = this.children.indexOf( object );
-
-			if ( index !== - 1 ) {
-
-				object.parent = null;
-
-				object.dispatchEvent( { type: 'removed' } );
-
-				this.children.splice( index, 1 );
-
-			}
-
-			return this;
-
-		},
-
-		getObjectById: function ( id ) {
-
-			return this.getObjectByProperty( 'id', id );
-
-		},
-
-		getObjectByName: function ( name ) {
-
-			return this.getObjectByProperty( 'name', name );
-
-		},
-
-		getObjectByProperty: function ( name, value ) {
-
-			if ( this[ name ] === value ) return this;
-
-			for ( var i = 0, l = this.children.length; i < l; i ++ ) {
-
-				var child = this.children[ i ];
-				var object = child.getObjectByProperty( name, value );
-
-				if ( object !== undefined ) {
-
-					return object;
-
-				}
-
-			}
-
-			return undefined;
-
-		},
-
-		getWorldPosition: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-
-			this.updateMatrixWorld( true );
-
-			return result.setFromMatrixPosition( this.matrixWorld );
-
-		},
-
-		getWorldQuaternion: function () {
-
-			var position = new Vector3();
-			var scale = new Vector3();
-
-			return function getWorldQuaternion( optionalTarget ) {
-
-				var result = optionalTarget || new Quaternion();
-
-				this.updateMatrixWorld( true );
-
-				this.matrixWorld.decompose( position, result, scale );
-
-				return result;
-
-			};
-
-		}(),
-
-		getWorldRotation: function () {
-
-			var quaternion = new Quaternion();
-
-			return function getWorldRotation( optionalTarget ) {
-
-				var result = optionalTarget || new Euler();
-
-				this.getWorldQuaternion( quaternion );
-
-				return result.setFromQuaternion( quaternion, this.rotation.order, false );
-
-			};
-
-		}(),
-
-		getWorldScale: function () {
-
-			var position = new Vector3();
-			var quaternion = new Quaternion();
-
-			return function getWorldScale( optionalTarget ) {
-
-				var result = optionalTarget || new Vector3();
-
-				this.updateMatrixWorld( true );
-
-				this.matrixWorld.decompose( position, quaternion, result );
-
-				return result;
-
-			};
-
-		}(),
-
-		getWorldDirection: function () {
-
-			var quaternion = new Quaternion();
-
-			return function getWorldDirection( optionalTarget ) {
-
-				var result = optionalTarget || new Vector3();
-
-				this.getWorldQuaternion( quaternion );
-
-				return result.set( 0, 0, 1 ).applyQuaternion( quaternion );
-
-			};
-
-		}(),
-
-		raycast: function () {},
-
-		traverse: function ( callback ) {
-
-			callback( this );
-
-			var children = this.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				children[ i ].traverse( callback );
-
-			}
-
-		},
-
-		traverseVisible: function ( callback ) {
-
-			if ( this.visible === false ) return;
-
-			callback( this );
-
-			var children = this.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				children[ i ].traverseVisible( callback );
-
-			}
-
-		},
-
-		traverseAncestors: function ( callback ) {
-
-			var parent = this.parent;
-
-			if ( parent !== null ) {
-
-				callback( parent );
-
-				parent.traverseAncestors( callback );
-
-			}
-
-		},
-
-		updateMatrix: function () {
-
-			this.matrix.compose( this.position, this.quaternion, this.scale );
-
-			this.matrixWorldNeedsUpdate = true;
-
-		},
-
-		updateMatrixWorld: function ( force ) {
-
-			if ( this.matrixAutoUpdate ) this.updateMatrix();
-
-			if ( this.matrixWorldNeedsUpdate || force ) {
-
-				if ( this.parent === null ) {
-
-					this.matrixWorld.copy( this.matrix );
-
-				} else {
-
-					this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );
-
-				}
-
-				this.matrixWorldNeedsUpdate = false;
-
-				force = true;
-
-			}
-
-			// update children
-
-			var children = this.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				children[ i ].updateMatrixWorld( force );
-
-			}
-
-		},
-
-		toJSON: function ( meta ) {
-
-			// meta is a string when called from JSON.stringify
-			var isRootObject = ( meta === undefined || typeof meta === 'string' );
-
-			var output = {};
-
-			// meta is a hash used to collect geometries, materials.
-			// not providing it implies that this is the root object
-			// being serialized.
-			if ( isRootObject ) {
-
-				// initialize meta obj
-				meta = {
-					geometries: {},
-					materials: {},
-					textures: {},
-					images: {},
-					shapes: {}
-				};
-
-				output.metadata = {
-					version: 4.5,
-					type: 'Object',
-					generator: 'Object3D.toJSON'
-				};
-
-			}
-
-			// standard Object3D serialization
-
-			var object = {};
-
-			object.uuid = this.uuid;
-			object.type = this.type;
-
-			if ( this.name !== '' ) object.name = this.name;
-			if ( this.castShadow === true ) object.castShadow = true;
-			if ( this.receiveShadow === true ) object.receiveShadow = true;
-			if ( this.visible === false ) object.visible = false;
-			if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;
-
-			object.matrix = this.matrix.toArray();
-
-			//
-
-			function serialize( library, element ) {
-
-				if ( library[ element.uuid ] === undefined ) {
-
-					library[ element.uuid ] = element.toJSON( meta );
-
-				}
-
-				return element.uuid;
-
-			}
-
-			if ( this.geometry !== undefined ) {
-
-				object.geometry = serialize( meta.geometries, this.geometry );
-
-				var parameters = this.geometry.parameters;
-
-				if ( parameters !== undefined && parameters.shapes !== undefined ) {
-
-					var shapes = parameters.shapes;
-
-					if ( Array.isArray( shapes ) ) {
-
-						for ( var i = 0, l = shapes.length; i < l; i ++ ) {
-
-							var shape = shapes[ i ];
-
-							serialize( meta.shapes, shape );
-
-						}
-
-					} else {
-
-						serialize( meta.shapes, shapes );
-
-					}
-
-				}
-
-			}
-
-			if ( this.material !== undefined ) {
-
-				if ( Array.isArray( this.material ) ) {
-
-					var uuids = [];
-
-					for ( var i = 0, l = this.material.length; i < l; i ++ ) {
-
-						uuids.push( serialize( meta.materials, this.material[ i ] ) );
-
-					}
-
-					object.material = uuids;
-
-				} else {
-
-					object.material = serialize( meta.materials, this.material );
-
-				}
-
-			}
-
-			//
-
-			if ( this.children.length > 0 ) {
-
-				object.children = [];
-
-				for ( var i = 0; i < this.children.length; i ++ ) {
-
-					object.children.push( this.children[ i ].toJSON( meta ).object );
-
-				}
-
-			}
-
-			if ( isRootObject ) {
-
-				var geometries = extractFromCache( meta.geometries );
-				var materials = extractFromCache( meta.materials );
-				var textures = extractFromCache( meta.textures );
-				var images = extractFromCache( meta.images );
-				var shapes = extractFromCache( meta.shapes );
-
-				if ( geometries.length > 0 ) output.geometries = geometries;
-				if ( materials.length > 0 ) output.materials = materials;
-				if ( textures.length > 0 ) output.textures = textures;
-				if ( images.length > 0 ) output.images = images;
-				if ( shapes.length > 0 ) output.shapes = shapes;
-
-			}
-
-			output.object = object;
-
-			return output;
-
-			// extract data from the cache hash
-			// remove metadata on each item
-			// and return as array
-			function extractFromCache( cache ) {
-
-				var values = [];
-				for ( var key in cache ) {
-
-					var data = cache[ key ];
-					delete data.metadata;
-					values.push( data );
-
-				}
-				return values;
-
-			}
-
-		},
-
-		clone: function ( recursive ) {
-
-			return new this.constructor().copy( this, recursive );
-
-		},
-
-		copy: function ( source, recursive ) {
-
-			if ( recursive === undefined ) recursive = true;
-
-			this.name = source.name;
-
-			this.up.copy( source.up );
-
-			this.position.copy( source.position );
-			this.quaternion.copy( source.quaternion );
-			this.scale.copy( source.scale );
-
-			this.matrix.copy( source.matrix );
-			this.matrixWorld.copy( source.matrixWorld );
-
-			this.matrixAutoUpdate = source.matrixAutoUpdate;
-			this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
-
-			this.layers.mask = source.layers.mask;
-			this.visible = source.visible;
-
-			this.castShadow = source.castShadow;
-			this.receiveShadow = source.receiveShadow;
-
-			this.frustumCulled = source.frustumCulled;
-			this.renderOrder = source.renderOrder;
-
-			this.userData = JSON.parse( JSON.stringify( source.userData ) );
-
-			if ( recursive === true ) {
-
-				for ( var i = 0; i < source.children.length; i ++ ) {
-
-					var child = source.children[ i ];
-					this.add( child.clone() );
-
-				}
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author WestLangley / http://github.com/WestLangley
-	*/
-
-	function Camera() {
-
-		Object3D.call( this );
-
-		this.type = 'Camera';
-
-		this.matrixWorldInverse = new Matrix4();
-		this.projectionMatrix = new Matrix4();
-
-	}
-
-	Camera.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Camera,
-
-		isCamera: true,
-
-		copy: function ( source, recursive ) {
-
-			Object3D.prototype.copy.call( this, source, recursive );
-
-			this.matrixWorldInverse.copy( source.matrixWorldInverse );
-			this.projectionMatrix.copy( source.projectionMatrix );
-
-			return this;
-
-		},
-
-		getWorldDirection: function () {
-
-			var quaternion = new Quaternion();
-
-			return function getWorldDirection( optionalTarget ) {
-
-				var result = optionalTarget || new Vector3();
-
-				this.getWorldQuaternion( quaternion );
-
-				return result.set( 0, 0, - 1 ).applyQuaternion( quaternion );
-
-			};
-
-		}(),
-
-		updateMatrixWorld: function ( force ) {
-
-			Object3D.prototype.updateMatrixWorld.call( this, force );
-
-			this.matrixWorldInverse.getInverse( this.matrixWorld );
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author arose / http://github.com/arose
-	 */
-
-	function OrthographicCamera( left, right, top, bottom, near, far ) {
-
-		Camera.call( this );
-
-		this.type = 'OrthographicCamera';
-
-		this.zoom = 1;
-		this.view = null;
-
-		this.left = left;
-		this.right = right;
-		this.top = top;
-		this.bottom = bottom;
-
-		this.near = ( near !== undefined ) ? near : 0.1;
-		this.far = ( far !== undefined ) ? far : 2000;
-
-		this.updateProjectionMatrix();
-
-	}
-
-	OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
-
-		constructor: OrthographicCamera,
-
-		isOrthographicCamera: true,
-
-		copy: function ( source, recursive ) {
-
-			Camera.prototype.copy.call( this, source, recursive );
-
-			this.left = source.left;
-			this.right = source.right;
-			this.top = source.top;
-			this.bottom = source.bottom;
-			this.near = source.near;
-			this.far = source.far;
-
-			this.zoom = source.zoom;
-			this.view = source.view === null ? null : Object.assign( {}, source.view );
-
-			return this;
-
-		},
-
-		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
-
-			if ( this.view === null ) {
-
-				this.view = {
-					enabled: true,
-					fullWidth: 1,
-					fullHeight: 1,
-					offsetX: 0,
-					offsetY: 0,
-					width: 1,
-					height: 1
-				};
-
-			}
-
-			this.view.enabled = true;
-			this.view.fullWidth = fullWidth;
-			this.view.fullHeight = fullHeight;
-			this.view.offsetX = x;
-			this.view.offsetY = y;
-			this.view.width = width;
-			this.view.height = height;
-
-			this.updateProjectionMatrix();
-
-		},
-
-		clearViewOffset: function () {
-
-			if ( this.view !== null ) {
-
-				this.view.enabled = false;
-
-			}
-
-			this.updateProjectionMatrix();
-
-		},
-
-		updateProjectionMatrix: function () {
-
-			var dx = ( this.right - this.left ) / ( 2 * this.zoom );
-			var dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
-			var cx = ( this.right + this.left ) / 2;
-			var cy = ( this.top + this.bottom ) / 2;
-
-			var left = cx - dx;
-			var right = cx + dx;
-			var top = cy + dy;
-			var bottom = cy - dy;
-
-			if ( this.view !== null && this.view.enabled ) {
-
-				var zoomW = this.zoom / ( this.view.width / this.view.fullWidth );
-				var zoomH = this.zoom / ( this.view.height / this.view.fullHeight );
-				var scaleW = ( this.right - this.left ) / this.view.width;
-				var scaleH = ( this.top - this.bottom ) / this.view.height;
-
-				left += scaleW * ( this.view.offsetX / zoomW );
-				right = left + scaleW * ( this.view.width / zoomW );
-				top -= scaleH * ( this.view.offsetY / zoomH );
-				bottom = top - scaleH * ( this.view.height / zoomH );
-
-			}
-
-			this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.zoom = this.zoom;
-			data.object.left = this.left;
-			data.object.right = this.right;
-			data.object.top = this.top;
-			data.object.bottom = this.bottom;
-			data.object.near = this.near;
-			data.object.far = this.far;
-
-			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Face3( a, b, c, normal, color, materialIndex ) {
-
-		this.a = a;
-		this.b = b;
-		this.c = c;
-
-		this.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();
-		this.vertexNormals = Array.isArray( normal ) ? normal : [];
-
-		this.color = ( color && color.isColor ) ? color : new Color();
-		this.vertexColors = Array.isArray( color ) ? color : [];
-
-		this.materialIndex = materialIndex !== undefined ? materialIndex : 0;
-
-	}
-
-	Object.assign( Face3.prototype, {
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.a = source.a;
-			this.b = source.b;
-			this.c = source.c;
-
-			this.normal.copy( source.normal );
-			this.color.copy( source.color );
-
-			this.materialIndex = source.materialIndex;
-
-			for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {
-
-				this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();
-
-			}
-
-			for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {
-
-				this.vertexColors[ i ] = source.vertexColors[ i ].clone();
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author kile / http://kile.stravaganza.org/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author bhouston / http://clara.io
-	 */
-
-	var geometryId = 0; // Geometry uses even numbers as Id
-
-	function Geometry() {
-
-		Object.defineProperty( this, 'id', { value: geometryId += 2 } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'Geometry';
-
-		this.vertices = [];
-		this.colors = [];
-		this.faces = [];
-		this.faceVertexUvs = [[]];
-
-		this.morphTargets = [];
-		this.morphNormals = [];
-
-		this.skinWeights = [];
-		this.skinIndices = [];
-
-		this.lineDistances = [];
-
-		this.boundingBox = null;
-		this.boundingSphere = null;
-
-		// update flags
-
-		this.elementsNeedUpdate = false;
-		this.verticesNeedUpdate = false;
-		this.uvsNeedUpdate = false;
-		this.normalsNeedUpdate = false;
-		this.colorsNeedUpdate = false;
-		this.lineDistancesNeedUpdate = false;
-		this.groupsNeedUpdate = false;
-
-	}
-
-	Geometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: Geometry,
-
-		isGeometry: true,
-
-		applyMatrix: function ( matrix ) {
-
-			var normalMatrix = new Matrix3().getNormalMatrix( matrix );
-
-			for ( var i = 0, il = this.vertices.length; i < il; i ++ ) {
-
-				var vertex = this.vertices[ i ];
-				vertex.applyMatrix4( matrix );
-
-			}
-
-			for ( var i = 0, il = this.faces.length; i < il; i ++ ) {
-
-				var face = this.faces[ i ];
-				face.normal.applyMatrix3( normalMatrix ).normalize();
-
-				for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
-
-					face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();
-
-				}
-
-			}
-
-			if ( this.boundingBox !== null ) {
-
-				this.computeBoundingBox();
-
-			}
-
-			if ( this.boundingSphere !== null ) {
-
-				this.computeBoundingSphere();
-
-			}
-
-			this.verticesNeedUpdate = true;
-			this.normalsNeedUpdate = true;
-
-			return this;
-
-		},
-
-		rotateX: function () {
-
-			// rotate geometry around world x-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateX( angle ) {
-
-				m1.makeRotationX( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateY: function () {
-
-			// rotate geometry around world y-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateY( angle ) {
-
-				m1.makeRotationY( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateZ: function () {
-
-			// rotate geometry around world z-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateZ( angle ) {
-
-				m1.makeRotationZ( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function () {
-
-			// translate geometry
-
-			var m1 = new Matrix4();
-
-			return function translate( x, y, z ) {
-
-				m1.makeTranslation( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		scale: function () {
-
-			// scale geometry
-
-			var m1 = new Matrix4();
-
-			return function scale( x, y, z ) {
-
-				m1.makeScale( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		lookAt: function () {
-
-			var obj = new Object3D();
-
-			return function lookAt( vector ) {
-
-				obj.lookAt( vector );
-
-				obj.updateMatrix();
-
-				this.applyMatrix( obj.matrix );
-
-			};
-
-		}(),
-
-		fromBufferGeometry: function ( geometry ) {
-
-			var scope = this;
-
-			var indices = geometry.index !== null ? geometry.index.array : undefined;
-			var attributes = geometry.attributes;
-
-			var positions = attributes.position.array;
-			var normals = attributes.normal !== undefined ? attributes.normal.array : undefined;
-			var colors = attributes.color !== undefined ? attributes.color.array : undefined;
-			var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;
-			var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;
-
-			if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];
-
-			var tempNormals = [];
-			var tempUVs = [];
-			var tempUVs2 = [];
-
-			for ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {
-
-				scope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );
-
-				if ( normals !== undefined ) {
-
-					tempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );
-
-				}
-
-				if ( colors !== undefined ) {
-
-					scope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );
-
-				}
-
-				if ( uvs !== undefined ) {
-
-					tempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) );
-
-				}
-
-				if ( uvs2 !== undefined ) {
-
-					tempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );
-
-				}
-
-			}
-
-			function addFace( a, b, c, materialIndex ) {
-
-				var vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];
-				var vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];
-
-				var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );
-
-				scope.faces.push( face );
-
-				if ( uvs !== undefined ) {
-
-					scope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );
-
-				}
-
-				if ( uvs2 !== undefined ) {
-
-					scope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );
-
-				}
-
-			}
-
-			var groups = geometry.groups;
-
-			if ( groups.length > 0 ) {
-
-				for ( var i = 0; i < groups.length; i ++ ) {
-
-					var group = groups[ i ];
-
-					var start = group.start;
-					var count = group.count;
-
-					for ( var j = start, jl = start + count; j < jl; j += 3 ) {
-
-						if ( indices !== undefined ) {
-
-							addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );
-
-						} else {
-
-							addFace( j, j + 1, j + 2, group.materialIndex );
-
-						}
-
-					}
-
-				}
-
-			} else {
-
-				if ( indices !== undefined ) {
-
-					for ( var i = 0; i < indices.length; i += 3 ) {
-
-						addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );
-
-					}
-
-				} else {
-
-					for ( var i = 0; i < positions.length / 3; i += 3 ) {
-
-						addFace( i, i + 1, i + 2 );
-
-					}
-
-				}
-
-			}
-
-			this.computeFaceNormals();
-
-			if ( geometry.boundingBox !== null ) {
-
-				this.boundingBox = geometry.boundingBox.clone();
-
-			}
-
-			if ( geometry.boundingSphere !== null ) {
-
-				this.boundingSphere = geometry.boundingSphere.clone();
-
-			}
-
-			return this;
-
-		},
-
-		center: function () {
-
-			this.computeBoundingBox();
-
-			var offset = this.boundingBox.getCenter().negate();
-
-			this.translate( offset.x, offset.y, offset.z );
-
-			return offset;
-
-		},
-
-		normalize: function () {
-
-			this.computeBoundingSphere();
-
-			var center = this.boundingSphere.center;
-			var radius = this.boundingSphere.radius;
-
-			var s = radius === 0 ? 1 : 1.0 / radius;
-
-			var matrix = new Matrix4();
-			matrix.set(
-				s, 0, 0, - s * center.x,
-				0, s, 0, - s * center.y,
-				0, 0, s, - s * center.z,
-				0, 0, 0, 1
-			);
-
-			this.applyMatrix( matrix );
-
-			return this;
-
-		},
-
-		computeFaceNormals: function () {
-
-			var cb = new Vector3(), ab = new Vector3();
-
-			for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				var face = this.faces[ f ];
-
-				var vA = this.vertices[ face.a ];
-				var vB = this.vertices[ face.b ];
-				var vC = this.vertices[ face.c ];
-
-				cb.subVectors( vC, vB );
-				ab.subVectors( vA, vB );
-				cb.cross( ab );
-
-				cb.normalize();
-
-				face.normal.copy( cb );
-
-			}
-
-		},
-
-		computeVertexNormals: function ( areaWeighted ) {
-
-			if ( areaWeighted === undefined ) areaWeighted = true;
-
-			var v, vl, f, fl, face, vertices;
-
-			vertices = new Array( this.vertices.length );
-
-			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
-
-				vertices[ v ] = new Vector3();
-
-			}
-
-			if ( areaWeighted ) {
-
-				// vertex normals weighted by triangle areas
-				// http://www.iquilezles.org/www/articles/normals/normals.htm
-
-				var vA, vB, vC;
-				var cb = new Vector3(), ab = new Vector3();
-
-				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-					face = this.faces[ f ];
-
-					vA = this.vertices[ face.a ];
-					vB = this.vertices[ face.b ];
-					vC = this.vertices[ face.c ];
-
-					cb.subVectors( vC, vB );
-					ab.subVectors( vA, vB );
-					cb.cross( ab );
-
-					vertices[ face.a ].add( cb );
-					vertices[ face.b ].add( cb );
-					vertices[ face.c ].add( cb );
-
-				}
-
-			} else {
-
-				this.computeFaceNormals();
-
-				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-					face = this.faces[ f ];
-
-					vertices[ face.a ].add( face.normal );
-					vertices[ face.b ].add( face.normal );
-					vertices[ face.c ].add( face.normal );
-
-				}
-
-			}
-
-			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {
-
-				vertices[ v ].normalize();
-
-			}
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				var vertexNormals = face.vertexNormals;
-
-				if ( vertexNormals.length === 3 ) {
-
-					vertexNormals[ 0 ].copy( vertices[ face.a ] );
-					vertexNormals[ 1 ].copy( vertices[ face.b ] );
-					vertexNormals[ 2 ].copy( vertices[ face.c ] );
-
-				} else {
-
-					vertexNormals[ 0 ] = vertices[ face.a ].clone();
-					vertexNormals[ 1 ] = vertices[ face.b ].clone();
-					vertexNormals[ 2 ] = vertices[ face.c ].clone();
-
-				}
-
-			}
-
-			if ( this.faces.length > 0 ) {
-
-				this.normalsNeedUpdate = true;
-
-			}
-
-		},
-
-		computeFlatVertexNormals: function () {
-
-			var f, fl, face;
-
-			this.computeFaceNormals();
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				var vertexNormals = face.vertexNormals;
-
-				if ( vertexNormals.length === 3 ) {
-
-					vertexNormals[ 0 ].copy( face.normal );
-					vertexNormals[ 1 ].copy( face.normal );
-					vertexNormals[ 2 ].copy( face.normal );
-
-				} else {
-
-					vertexNormals[ 0 ] = face.normal.clone();
-					vertexNormals[ 1 ] = face.normal.clone();
-					vertexNormals[ 2 ] = face.normal.clone();
-
-				}
-
-			}
-
-			if ( this.faces.length > 0 ) {
-
-				this.normalsNeedUpdate = true;
-
-			}
-
-		},
-
-		computeMorphNormals: function () {
-
-			var i, il, f, fl, face;
-
-			// save original normals
-			// - create temp variables on first access
-			//   otherwise just copy (for faster repeated calls)
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				if ( ! face.__originalFaceNormal ) {
-
-					face.__originalFaceNormal = face.normal.clone();
-
-				} else {
-
-					face.__originalFaceNormal.copy( face.normal );
-
-				}
-
-				if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];
-
-				for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {
-
-					if ( ! face.__originalVertexNormals[ i ] ) {
-
-						face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();
-
-					} else {
-
-						face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );
-
-					}
-
-				}
-
-			}
-
-			// use temp geometry to compute face and vertex normals for each morph
-
-			var tmpGeo = new Geometry();
-			tmpGeo.faces = this.faces;
-
-			for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {
-
-				// create on first access
-
-				if ( ! this.morphNormals[ i ] ) {
-
-					this.morphNormals[ i ] = {};
-					this.morphNormals[ i ].faceNormals = [];
-					this.morphNormals[ i ].vertexNormals = [];
-
-					var dstNormalsFace = this.morphNormals[ i ].faceNormals;
-					var dstNormalsVertex = this.morphNormals[ i ].vertexNormals;
-
-					var faceNormal, vertexNormals;
-
-					for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-						faceNormal = new Vector3();
-						vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };
-
-						dstNormalsFace.push( faceNormal );
-						dstNormalsVertex.push( vertexNormals );
-
-					}
-
-				}
-
-				var morphNormals = this.morphNormals[ i ];
-
-				// set vertices to morph target
-
-				tmpGeo.vertices = this.morphTargets[ i ].vertices;
-
-				// compute morph normals
-
-				tmpGeo.computeFaceNormals();
-				tmpGeo.computeVertexNormals();
-
-				// store morph normals
-
-				var faceNormal, vertexNormals;
-
-				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-					face = this.faces[ f ];
-
-					faceNormal = morphNormals.faceNormals[ f ];
-					vertexNormals = morphNormals.vertexNormals[ f ];
-
-					faceNormal.copy( face.normal );
-
-					vertexNormals.a.copy( face.vertexNormals[ 0 ] );
-					vertexNormals.b.copy( face.vertexNormals[ 1 ] );
-					vertexNormals.c.copy( face.vertexNormals[ 2 ] );
-
-				}
-
-			}
-
-			// restore original normals
-
-			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {
-
-				face = this.faces[ f ];
-
-				face.normal = face.__originalFaceNormal;
-				face.vertexNormals = face.__originalVertexNormals;
-
-			}
-
-		},
-
-		computeBoundingBox: function () {
-
-			if ( this.boundingBox === null ) {
-
-				this.boundingBox = new Box3();
-
-			}
-
-			this.boundingBox.setFromPoints( this.vertices );
-
-		},
-
-		computeBoundingSphere: function () {
-
-			if ( this.boundingSphere === null ) {
-
-				this.boundingSphere = new Sphere();
-
-			}
-
-			this.boundingSphere.setFromPoints( this.vertices );
-
-		},
-
-		merge: function ( geometry, matrix, materialIndexOffset ) {
-
-			if ( ! ( geometry && geometry.isGeometry ) ) {
-
-				console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );
-				return;
-
-			}
-
-			var normalMatrix,
-				vertexOffset = this.vertices.length,
-				vertices1 = this.vertices,
-				vertices2 = geometry.vertices,
-				faces1 = this.faces,
-				faces2 = geometry.faces,
-				uvs1 = this.faceVertexUvs[ 0 ],
-				uvs2 = geometry.faceVertexUvs[ 0 ],
-				colors1 = this.colors,
-				colors2 = geometry.colors;
-
-			if ( materialIndexOffset === undefined ) materialIndexOffset = 0;
-
-			if ( matrix !== undefined ) {
-
-				normalMatrix = new Matrix3().getNormalMatrix( matrix );
-
-			}
-
-			// vertices
-
-			for ( var i = 0, il = vertices2.length; i < il; i ++ ) {
-
-				var vertex = vertices2[ i ];
-
-				var vertexCopy = vertex.clone();
-
-				if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );
-
-				vertices1.push( vertexCopy );
-
-			}
-
-			// colors
-
-			for ( var i = 0, il = colors2.length; i < il; i ++ ) {
-
-				colors1.push( colors2[ i ].clone() );
-
-			}
-
-			// faces
-
-			for ( i = 0, il = faces2.length; i < il; i ++ ) {
-
-				var face = faces2[ i ], faceCopy, normal, color,
-					faceVertexNormals = face.vertexNormals,
-					faceVertexColors = face.vertexColors;
-
-				faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );
-				faceCopy.normal.copy( face.normal );
-
-				if ( normalMatrix !== undefined ) {
-
-					faceCopy.normal.applyMatrix3( normalMatrix ).normalize();
-
-				}
-
-				for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {
-
-					normal = faceVertexNormals[ j ].clone();
-
-					if ( normalMatrix !== undefined ) {
-
-						normal.applyMatrix3( normalMatrix ).normalize();
-
-					}
-
-					faceCopy.vertexNormals.push( normal );
-
-				}
-
-				faceCopy.color.copy( face.color );
-
-				for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {
-
-					color = faceVertexColors[ j ];
-					faceCopy.vertexColors.push( color.clone() );
-
-				}
-
-				faceCopy.materialIndex = face.materialIndex + materialIndexOffset;
-
-				faces1.push( faceCopy );
-
-			}
-
-			// uvs
-
-			for ( i = 0, il = uvs2.length; i < il; i ++ ) {
-
-				var uv = uvs2[ i ], uvCopy = [];
-
-				if ( uv === undefined ) {
-
-					continue;
-
-				}
-
-				for ( var j = 0, jl = uv.length; j < jl; j ++ ) {
-
-					uvCopy.push( uv[ j ].clone() );
-
-				}
-
-				uvs1.push( uvCopy );
-
-			}
-
-		},
-
-		mergeMesh: function ( mesh ) {
-
-			if ( ! ( mesh && mesh.isMesh ) ) {
-
-				console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );
-				return;
-
-			}
-
-			mesh.matrixAutoUpdate && mesh.updateMatrix();
-
-			this.merge( mesh.geometry, mesh.matrix );
-
-		},
-
-		/*
-		 * Checks for duplicate vertices with hashmap.
-		 * Duplicated vertices are removed
-		 * and faces' vertices are updated.
-		 */
-
-		mergeVertices: function () {
-
-			var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)
-			var unique = [], changes = [];
-
-			var v, key;
-			var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001
-			var precision = Math.pow( 10, precisionPoints );
-			var i, il, face;
-			var indices, j, jl;
-
-			for ( i = 0, il = this.vertices.length; i < il; i ++ ) {
-
-				v = this.vertices[ i ];
-				key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );
-
-				if ( verticesMap[ key ] === undefined ) {
-
-					verticesMap[ key ] = i;
-					unique.push( this.vertices[ i ] );
-					changes[ i ] = unique.length - 1;
-
-				} else {
-
-					//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
-					changes[ i ] = changes[ verticesMap[ key ] ];
-
-				}
-
-			}
-
-
-			// if faces are completely degenerate after merging vertices, we
-			// have to remove them from the geometry.
-			var faceIndicesToRemove = [];
-
-			for ( i = 0, il = this.faces.length; i < il; i ++ ) {
-
-				face = this.faces[ i ];
-
-				face.a = changes[ face.a ];
-				face.b = changes[ face.b ];
-				face.c = changes[ face.c ];
-
-				indices = [ face.a, face.b, face.c ];
-
-				// if any duplicate vertices are found in a Face3
-				// we have to remove the face as nothing can be saved
-				for ( var n = 0; n < 3; n ++ ) {
-
-					if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {
-
-						faceIndicesToRemove.push( i );
-						break;
-
-					}
-
-				}
-
-			}
-
-			for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {
-
-				var idx = faceIndicesToRemove[ i ];
-
-				this.faces.splice( idx, 1 );
-
-				for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {
-
-					this.faceVertexUvs[ j ].splice( idx, 1 );
-
-				}
-
-			}
-
-			// Use unique set of vertices
-
-			var diff = this.vertices.length - unique.length;
-			this.vertices = unique;
-			return diff;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			this.vertices = [];
-
-			for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-				var point = points[ i ];
-				this.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
-
-			}
-
-			return this;
-
-		},
-
-		sortFacesByMaterialIndex: function () {
-
-			var faces = this.faces;
-			var length = faces.length;
-
-			// tag faces
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				faces[ i ]._id = i;
-
-			}
-
-			// sort faces
-
-			function materialIndexSort( a, b ) {
-
-				return a.materialIndex - b.materialIndex;
-
-			}
-
-			faces.sort( materialIndexSort );
-
-			// sort uvs
-
-			var uvs1 = this.faceVertexUvs[ 0 ];
-			var uvs2 = this.faceVertexUvs[ 1 ];
-
-			var newUvs1, newUvs2;
-
-			if ( uvs1 && uvs1.length === length ) newUvs1 = [];
-			if ( uvs2 && uvs2.length === length ) newUvs2 = [];
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				var id = faces[ i ]._id;
-
-				if ( newUvs1 ) newUvs1.push( uvs1[ id ] );
-				if ( newUvs2 ) newUvs2.push( uvs2[ id ] );
-
-			}
-
-			if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;
-			if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;
-
-		},
-
-		toJSON: function () {
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'Geometry',
-					generator: 'Geometry.toJSON'
-				}
-			};
-
-			// standard Geometry serialization
-
-			data.uuid = this.uuid;
-			data.type = this.type;
-			if ( this.name !== '' ) data.name = this.name;
-
-			if ( this.parameters !== undefined ) {
-
-				var parameters = this.parameters;
-
-				for ( var key in parameters ) {
-
-					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
-
-				}
-
-				return data;
-
-			}
-
-			var vertices = [];
-
-			for ( var i = 0; i < this.vertices.length; i ++ ) {
-
-				var vertex = this.vertices[ i ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-			var faces = [];
-			var normals = [];
-			var normalsHash = {};
-			var colors = [];
-			var colorsHash = {};
-			var uvs = [];
-			var uvsHash = {};
-
-			for ( var i = 0; i < this.faces.length; i ++ ) {
-
-				var face = this.faces[ i ];
-
-				var hasMaterial = true;
-				var hasFaceUv = false; // deprecated
-				var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;
-				var hasFaceNormal = face.normal.length() > 0;
-				var hasFaceVertexNormal = face.vertexNormals.length > 0;
-				var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;
-				var hasFaceVertexColor = face.vertexColors.length > 0;
-
-				var faceType = 0;
-
-				faceType = setBit( faceType, 0, 0 ); // isQuad
-				faceType = setBit( faceType, 1, hasMaterial );
-				faceType = setBit( faceType, 2, hasFaceUv );
-				faceType = setBit( faceType, 3, hasFaceVertexUv );
-				faceType = setBit( faceType, 4, hasFaceNormal );
-				faceType = setBit( faceType, 5, hasFaceVertexNormal );
-				faceType = setBit( faceType, 6, hasFaceColor );
-				faceType = setBit( faceType, 7, hasFaceVertexColor );
-
-				faces.push( faceType );
-				faces.push( face.a, face.b, face.c );
-				faces.push( face.materialIndex );
-
-				if ( hasFaceVertexUv ) {
-
-					var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];
-
-					faces.push(
-						getUvIndex( faceVertexUvs[ 0 ] ),
-						getUvIndex( faceVertexUvs[ 1 ] ),
-						getUvIndex( faceVertexUvs[ 2 ] )
-					);
-
-				}
-
-				if ( hasFaceNormal ) {
-
-					faces.push( getNormalIndex( face.normal ) );
-
-				}
-
-				if ( hasFaceVertexNormal ) {
-
-					var vertexNormals = face.vertexNormals;
-
-					faces.push(
-						getNormalIndex( vertexNormals[ 0 ] ),
-						getNormalIndex( vertexNormals[ 1 ] ),
-						getNormalIndex( vertexNormals[ 2 ] )
-					);
-
-				}
-
-				if ( hasFaceColor ) {
-
-					faces.push( getColorIndex( face.color ) );
-
-				}
-
-				if ( hasFaceVertexColor ) {
-
-					var vertexColors = face.vertexColors;
-
-					faces.push(
-						getColorIndex( vertexColors[ 0 ] ),
-						getColorIndex( vertexColors[ 1 ] ),
-						getColorIndex( vertexColors[ 2 ] )
-					);
-
-				}
-
-			}
-
-			function setBit( value, position, enabled ) {
-
-				return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );
-
-			}
-
-			function getNormalIndex( normal ) {
-
-				var hash = normal.x.toString() + normal.y.toString() + normal.z.toString();
-
-				if ( normalsHash[ hash ] !== undefined ) {
-
-					return normalsHash[ hash ];
-
-				}
-
-				normalsHash[ hash ] = normals.length / 3;
-				normals.push( normal.x, normal.y, normal.z );
-
-				return normalsHash[ hash ];
-
-			}
-
-			function getColorIndex( color ) {
-
-				var hash = color.r.toString() + color.g.toString() + color.b.toString();
-
-				if ( colorsHash[ hash ] !== undefined ) {
-
-					return colorsHash[ hash ];
-
-				}
-
-				colorsHash[ hash ] = colors.length;
-				colors.push( color.getHex() );
-
-				return colorsHash[ hash ];
-
-			}
-
-			function getUvIndex( uv ) {
-
-				var hash = uv.x.toString() + uv.y.toString();
-
-				if ( uvsHash[ hash ] !== undefined ) {
-
-					return uvsHash[ hash ];
-
-				}
-
-				uvsHash[ hash ] = uvs.length / 2;
-				uvs.push( uv.x, uv.y );
-
-				return uvsHash[ hash ];
-
-			}
-
-			data.data = {};
-
-			data.data.vertices = vertices;
-			data.data.normals = normals;
-			if ( colors.length > 0 ) data.data.colors = colors;
-			if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility
-			data.data.faces = faces;
-
-			return data;
-
-		},
-
-		clone: function () {
-
-			/*
-			 // Handle primitives
-
-			 var parameters = this.parameters;
-
-			 if ( parameters !== undefined ) {
-
-			 var values = [];
-
-			 for ( var key in parameters ) {
-
-			 values.push( parameters[ key ] );
-
-			 }
-
-			 var geometry = Object.create( this.constructor.prototype );
-			 this.constructor.apply( geometry, values );
-			 return geometry;
-
-			 }
-
-			 return new this.constructor().copy( this );
-			 */
-
-			return new Geometry().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			var i, il, j, jl, k, kl;
-
-			// reset
-
-			this.vertices = [];
-			this.colors = [];
-			this.faces = [];
-			this.faceVertexUvs = [[]];
-			this.morphTargets = [];
-			this.morphNormals = [];
-			this.skinWeights = [];
-			this.skinIndices = [];
-			this.lineDistances = [];
-			this.boundingBox = null;
-			this.boundingSphere = null;
-
-			// name
-
-			this.name = source.name;
-
-			// vertices
-
-			var vertices = source.vertices;
-
-			for ( i = 0, il = vertices.length; i < il; i ++ ) {
-
-				this.vertices.push( vertices[ i ].clone() );
-
-			}
-
-			// colors
-
-			var colors = source.colors;
-
-			for ( i = 0, il = colors.length; i < il; i ++ ) {
-
-				this.colors.push( colors[ i ].clone() );
-
-			}
-
-			// faces
-
-			var faces = source.faces;
-
-			for ( i = 0, il = faces.length; i < il; i ++ ) {
-
-				this.faces.push( faces[ i ].clone() );
-
-			}
-
-			// face vertex uvs
-
-			for ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {
-
-				var faceVertexUvs = source.faceVertexUvs[ i ];
-
-				if ( this.faceVertexUvs[ i ] === undefined ) {
-
-					this.faceVertexUvs[ i ] = [];
-
-				}
-
-				for ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {
-
-					var uvs = faceVertexUvs[ j ], uvsCopy = [];
-
-					for ( k = 0, kl = uvs.length; k < kl; k ++ ) {
-
-						var uv = uvs[ k ];
-
-						uvsCopy.push( uv.clone() );
-
-					}
-
-					this.faceVertexUvs[ i ].push( uvsCopy );
-
-				}
-
-			}
-
-			// morph targets
-
-			var morphTargets = source.morphTargets;
-
-			for ( i = 0, il = morphTargets.length; i < il; i ++ ) {
-
-				var morphTarget = {};
-				morphTarget.name = morphTargets[ i ].name;
-
-				// vertices
-
-				if ( morphTargets[ i ].vertices !== undefined ) {
-
-					morphTarget.vertices = [];
-
-					for ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {
-
-						morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );
-
-					}
-
-				}
-
-				// normals
-
-				if ( morphTargets[ i ].normals !== undefined ) {
-
-					morphTarget.normals = [];
-
-					for ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {
-
-						morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );
-
-					}
-
-				}
-
-				this.morphTargets.push( morphTarget );
-
-			}
-
-			// morph normals
-
-			var morphNormals = source.morphNormals;
-
-			for ( i = 0, il = morphNormals.length; i < il; i ++ ) {
-
-				var morphNormal = {};
-
-				// vertex normals
-
-				if ( morphNormals[ i ].vertexNormals !== undefined ) {
-
-					morphNormal.vertexNormals = [];
-
-					for ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {
-
-						var srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];
-						var destVertexNormal = {};
-
-						destVertexNormal.a = srcVertexNormal.a.clone();
-						destVertexNormal.b = srcVertexNormal.b.clone();
-						destVertexNormal.c = srcVertexNormal.c.clone();
-
-						morphNormal.vertexNormals.push( destVertexNormal );
-
-					}
-
-				}
-
-				// face normals
-
-				if ( morphNormals[ i ].faceNormals !== undefined ) {
-
-					morphNormal.faceNormals = [];
-
-					for ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {
-
-						morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );
-
-					}
-
-				}
-
-				this.morphNormals.push( morphNormal );
-
-			}
-
-			// skin weights
-
-			var skinWeights = source.skinWeights;
-
-			for ( i = 0, il = skinWeights.length; i < il; i ++ ) {
-
-				this.skinWeights.push( skinWeights[ i ].clone() );
-
-			}
-
-			// skin indices
-
-			var skinIndices = source.skinIndices;
-
-			for ( i = 0, il = skinIndices.length; i < il; i ++ ) {
-
-				this.skinIndices.push( skinIndices[ i ].clone() );
-
-			}
-
-			// line distances
-
-			var lineDistances = source.lineDistances;
-
-			for ( i = 0, il = lineDistances.length; i < il; i ++ ) {
-
-				this.lineDistances.push( lineDistances[ i ] );
-
-			}
-
-			// bounding box
-
-			var boundingBox = source.boundingBox;
-
-			if ( boundingBox !== null ) {
-
-				this.boundingBox = boundingBox.clone();
-
-			}
-
-			// bounding sphere
-
-			var boundingSphere = source.boundingSphere;
-
-			if ( boundingSphere !== null ) {
-
-				this.boundingSphere = boundingSphere.clone();
-
-			}
-
-			// update flags
-
-			this.elementsNeedUpdate = source.elementsNeedUpdate;
-			this.verticesNeedUpdate = source.verticesNeedUpdate;
-			this.uvsNeedUpdate = source.uvsNeedUpdate;
-			this.normalsNeedUpdate = source.normalsNeedUpdate;
-			this.colorsNeedUpdate = source.colorsNeedUpdate;
-			this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;
-			this.groupsNeedUpdate = source.groupsNeedUpdate;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function BufferAttribute( array, itemSize, normalized ) {
-
-		if ( Array.isArray( array ) ) {
-
-			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
-
-		}
-
-		this.uuid = _Math.generateUUID();
-		this.name = '';
-
-		this.array = array;
-		this.itemSize = itemSize;
-		this.count = array !== undefined ? array.length / itemSize : 0;
-		this.normalized = normalized === true;
-
-		this.dynamic = false;
-		this.updateRange = { offset: 0, count: - 1 };
-
-		this.onUploadCallback = function () {};
-
-		this.version = 0;
-
-	}
-
-	Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {
-
-		set: function ( value ) {
-
-			if ( value === true ) this.version ++;
-
-		}
-
-	} );
-
-	Object.assign( BufferAttribute.prototype, {
-
-		isBufferAttribute: true,
-
-		setArray: function ( array ) {
-
-			if ( Array.isArray( array ) ) {
-
-				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
-
-			}
-
-			this.count = array !== undefined ? array.length / this.itemSize : 0;
-			this.array = array;
-
-		},
-
-		setDynamic: function ( value ) {
-
-			this.dynamic = value;
-
-			return this;
-
-		},
-
-		copy: function ( source ) {
-
-			this.array = new source.array.constructor( source.array );
-			this.itemSize = source.itemSize;
-			this.count = source.count;
-			this.normalized = source.normalized;
-
-			this.dynamic = source.dynamic;
-
-			return this;
-
-		},
-
-		copyAt: function ( index1, attribute, index2 ) {
-
-			index1 *= this.itemSize;
-			index2 *= attribute.itemSize;
-
-			for ( var i = 0, l = this.itemSize; i < l; i ++ ) {
-
-				this.array[ index1 + i ] = attribute.array[ index2 + i ];
-
-			}
-
-			return this;
-
-		},
-
-		copyArray: function ( array ) {
-
-			this.array.set( array );
-
-			return this;
-
-		},
-
-		copyColorsArray: function ( colors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = colors.length; i < l; i ++ ) {
-
-				var color = colors[ i ];
-
-				if ( color === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
-					color = new Color();
-
-				}
-
-				array[ offset ++ ] = color.r;
-				array[ offset ++ ] = color.g;
-				array[ offset ++ ] = color.b;
-
-			}
-
-			return this;
-
-		},
-
-		copyIndicesArray: function ( indices ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = indices.length; i < l; i ++ ) {
-
-				var index = indices[ i ];
-
-				array[ offset ++ ] = index.a;
-				array[ offset ++ ] = index.b;
-				array[ offset ++ ] = index.c;
-
-			}
-
-			return this;
-
-		},
-
-		copyVector2sArray: function ( vectors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
-
-				var vector = vectors[ i ];
-
-				if ( vector === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
-					vector = new Vector2();
-
-				}
-
-				array[ offset ++ ] = vector.x;
-				array[ offset ++ ] = vector.y;
-
-			}
-
-			return this;
-
-		},
-
-		copyVector3sArray: function ( vectors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
-
-				var vector = vectors[ i ];
-
-				if ( vector === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
-					vector = new Vector3();
-
-				}
-
-				array[ offset ++ ] = vector.x;
-				array[ offset ++ ] = vector.y;
-				array[ offset ++ ] = vector.z;
-
-			}
-
-			return this;
-
-		},
-
-		copyVector4sArray: function ( vectors ) {
-
-			var array = this.array, offset = 0;
-
-			for ( var i = 0, l = vectors.length; i < l; i ++ ) {
-
-				var vector = vectors[ i ];
-
-				if ( vector === undefined ) {
-
-					console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
-					vector = new Vector4();
-
-				}
-
-				array[ offset ++ ] = vector.x;
-				array[ offset ++ ] = vector.y;
-				array[ offset ++ ] = vector.z;
-				array[ offset ++ ] = vector.w;
-
-			}
-
-			return this;
-
-		},
-
-		set: function ( value, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.array.set( value, offset );
-
-			return this;
-
-		},
-
-		getX: function ( index ) {
-
-			return this.array[ index * this.itemSize ];
-
-		},
-
-		setX: function ( index, x ) {
-
-			this.array[ index * this.itemSize ] = x;
-
-			return this;
-
-		},
-
-		getY: function ( index ) {
-
-			return this.array[ index * this.itemSize + 1 ];
-
-		},
-
-		setY: function ( index, y ) {
-
-			this.array[ index * this.itemSize + 1 ] = y;
-
-			return this;
-
-		},
-
-		getZ: function ( index ) {
-
-			return this.array[ index * this.itemSize + 2 ];
-
-		},
-
-		setZ: function ( index, z ) {
-
-			this.array[ index * this.itemSize + 2 ] = z;
-
-			return this;
-
-		},
-
-		getW: function ( index ) {
-
-			return this.array[ index * this.itemSize + 3 ];
-
-		},
-
-		setW: function ( index, w ) {
-
-			this.array[ index * this.itemSize + 3 ] = w;
-
-			return this;
-
-		},
-
-		setXY: function ( index, x, y ) {
-
-			index *= this.itemSize;
-
-			this.array[ index + 0 ] = x;
-			this.array[ index + 1 ] = y;
-
-			return this;
-
-		},
-
-		setXYZ: function ( index, x, y, z ) {
-
-			index *= this.itemSize;
-
-			this.array[ index + 0 ] = x;
-			this.array[ index + 1 ] = y;
-			this.array[ index + 2 ] = z;
-
-			return this;
-
-		},
-
-		setXYZW: function ( index, x, y, z, w ) {
-
-			index *= this.itemSize;
-
-			this.array[ index + 0 ] = x;
-			this.array[ index + 1 ] = y;
-			this.array[ index + 2 ] = z;
-			this.array[ index + 3 ] = w;
-
-			return this;
-
-		},
-
-		onUpload: function ( callback ) {
-
-			this.onUploadCallback = callback;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.array, this.itemSize ).copy( this );
-
-		}
-
-	} );
-
-	//
-
-	function Int8BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Int8Array( array ), itemSize, normalized );
-
-	}
-
-	Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;
-
-
-	function Uint8BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint8Array( array ), itemSize, normalized );
-
-	}
-
-	Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;
-
-
-	function Uint8ClampedBufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize, normalized );
-
-	}
-
-	Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;
-
-
-	function Int16BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Int16Array( array ), itemSize, normalized );
-
-	}
-
-	Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;
-
-
-	function Uint16BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint16Array( array ), itemSize, normalized );
-
-	}
-
-	Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;
-
-
-	function Int32BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Int32Array( array ), itemSize, normalized );
-
-	}
-
-	Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;
-
-
-	function Uint32BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Uint32Array( array ), itemSize, normalized );
-
-	}
-
-	Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;
-
-
-	function Float32BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Float32Array( array ), itemSize, normalized );
-
-	}
-
-	Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;
-
-
-	function Float64BufferAttribute( array, itemSize, normalized ) {
-
-		BufferAttribute.call( this, new Float64Array( array ), itemSize, normalized );
-
-	}
-
-	Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
-	Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function DirectGeometry() {
-
-		this.indices = [];
-		this.vertices = [];
-		this.normals = [];
-		this.colors = [];
-		this.uvs = [];
-		this.uvs2 = [];
-
-		this.groups = [];
-
-		this.morphTargets = {};
-
-		this.skinWeights = [];
-		this.skinIndices = [];
-
-		// this.lineDistances = [];
-
-		this.boundingBox = null;
-		this.boundingSphere = null;
-
-		// update flags
-
-		this.verticesNeedUpdate = false;
-		this.normalsNeedUpdate = false;
-		this.colorsNeedUpdate = false;
-		this.uvsNeedUpdate = false;
-		this.groupsNeedUpdate = false;
-
-	}
-
-	Object.assign( DirectGeometry.prototype, {
-
-		computeGroups: function ( geometry ) {
-
-			var group;
-			var groups = [];
-			var materialIndex = undefined;
-
-			var faces = geometry.faces;
-
-			for ( var i = 0; i < faces.length; i ++ ) {
-
-				var face = faces[ i ];
-
-				// materials
-
-				if ( face.materialIndex !== materialIndex ) {
-
-					materialIndex = face.materialIndex;
-
-					if ( group !== undefined ) {
-
-						group.count = ( i * 3 ) - group.start;
-						groups.push( group );
-
-					}
-
-					group = {
-						start: i * 3,
-						materialIndex: materialIndex
-					};
-
-				}
-
-			}
-
-			if ( group !== undefined ) {
-
-				group.count = ( i * 3 ) - group.start;
-				groups.push( group );
-
-			}
-
-			this.groups = groups;
-
-		},
-
-		fromGeometry: function ( geometry ) {
-
-			var faces = geometry.faces;
-			var vertices = geometry.vertices;
-			var faceVertexUvs = geometry.faceVertexUvs;
-
-			var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
-			var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;
-
-			// morphs
-
-			var morphTargets = geometry.morphTargets;
-			var morphTargetsLength = morphTargets.length;
-
-			var morphTargetsPosition;
-
-			if ( morphTargetsLength > 0 ) {
-
-				morphTargetsPosition = [];
-
-				for ( var i = 0; i < morphTargetsLength; i ++ ) {
-
-					morphTargetsPosition[ i ] = [];
-
-				}
-
-				this.morphTargets.position = morphTargetsPosition;
-
-			}
-
-			var morphNormals = geometry.morphNormals;
-			var morphNormalsLength = morphNormals.length;
-
-			var morphTargetsNormal;
-
-			if ( morphNormalsLength > 0 ) {
-
-				morphTargetsNormal = [];
-
-				for ( var i = 0; i < morphNormalsLength; i ++ ) {
-
-					morphTargetsNormal[ i ] = [];
-
-				}
-
-				this.morphTargets.normal = morphTargetsNormal;
-
-			}
-
-			// skins
-
-			var skinIndices = geometry.skinIndices;
-			var skinWeights = geometry.skinWeights;
-
-			var hasSkinIndices = skinIndices.length === vertices.length;
-			var hasSkinWeights = skinWeights.length === vertices.length;
-
-			//
-
-			for ( var i = 0; i < faces.length; i ++ ) {
-
-				var face = faces[ i ];
-
-				this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );
-
-				var vertexNormals = face.vertexNormals;
-
-				if ( vertexNormals.length === 3 ) {
-
-					this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );
-
-				} else {
-
-					var normal = face.normal;
-
-					this.normals.push( normal, normal, normal );
-
-				}
-
-				var vertexColors = face.vertexColors;
-
-				if ( vertexColors.length === 3 ) {
-
-					this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );
-
-				} else {
-
-					var color = face.color;
-
-					this.colors.push( color, color, color );
-
-				}
-
-				if ( hasFaceVertexUv === true ) {
-
-					var vertexUvs = faceVertexUvs[ 0 ][ i ];
-
-					if ( vertexUvs !== undefined ) {
-
-						this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
-
-					} else {
-
-						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );
-
-						this.uvs.push( new Vector2(), new Vector2(), new Vector2() );
-
-					}
-
-				}
-
-				if ( hasFaceVertexUv2 === true ) {
-
-					var vertexUvs = faceVertexUvs[ 1 ][ i ];
-
-					if ( vertexUvs !== undefined ) {
-
-						this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );
-
-					} else {
-
-						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );
-
-						this.uvs2.push( new Vector2(), new Vector2(), new Vector2() );
-
-					}
-
-				}
-
-				// morphs
-
-				for ( var j = 0; j < morphTargetsLength; j ++ ) {
-
-					var morphTarget = morphTargets[ j ].vertices;
-
-					morphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );
-
-				}
-
-				for ( var j = 0; j < morphNormalsLength; j ++ ) {
-
-					var morphNormal = morphNormals[ j ].vertexNormals[ i ];
-
-					morphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );
-
-				}
-
-				// skins
-
-				if ( hasSkinIndices ) {
-
-					this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );
-
-				}
-
-				if ( hasSkinWeights ) {
-
-					this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );
-
-				}
-
-			}
-
-			this.computeGroups( geometry );
-
-			this.verticesNeedUpdate = geometry.verticesNeedUpdate;
-			this.normalsNeedUpdate = geometry.normalsNeedUpdate;
-			this.colorsNeedUpdate = geometry.colorsNeedUpdate;
-			this.uvsNeedUpdate = geometry.uvsNeedUpdate;
-			this.groupsNeedUpdate = geometry.groupsNeedUpdate;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function arrayMax( array ) {
-
-		if ( array.length === 0 ) return - Infinity;
-
-		var max = array[ 0 ];
-
-		for ( var i = 1, l = array.length; i < l; ++ i ) {
-
-			if ( array[ i ] > max ) max = array[ i ];
-
-		}
-
-		return max;
-
-	}
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var bufferGeometryId = 1; // BufferGeometry uses odd numbers as Id
-
-	function BufferGeometry() {
-
-		Object.defineProperty( this, 'id', { value: bufferGeometryId += 2 } );
-
-		this.uuid = _Math.generateUUID();
-
-		this.name = '';
-		this.type = 'BufferGeometry';
-
-		this.index = null;
-		this.attributes = {};
-
-		this.morphAttributes = {};
-
-		this.groups = [];
-
-		this.boundingBox = null;
-		this.boundingSphere = null;
-
-		this.drawRange = { start: 0, count: Infinity };
-
-	}
-
-	BufferGeometry.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: BufferGeometry,
-
-		isBufferGeometry: true,
-
-		getIndex: function () {
-
-			return this.index;
-
-		},
-
-		setIndex: function ( index ) {
-
-			if ( Array.isArray( index ) ) {
-
-				this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );
-
-			} else {
-
-				this.index = index;
-
-			}
-
-		},
-
-		addAttribute: function ( name, attribute ) {
-
-			if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {
-
-				console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );
-
-				this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );
-
-				return;
-
-			}
-
-			if ( name === 'index' ) {
-
-				console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
-				this.setIndex( attribute );
-
-				return;
-
-			}
-
-			this.attributes[ name ] = attribute;
-
-			return this;
-
-		},
-
-		getAttribute: function ( name ) {
-
-			return this.attributes[ name ];
-
-		},
-
-		removeAttribute: function ( name ) {
-
-			delete this.attributes[ name ];
-
-			return this;
-
-		},
-
-		addGroup: function ( start, count, materialIndex ) {
-
-			this.groups.push( {
-
-				start: start,
-				count: count,
-				materialIndex: materialIndex !== undefined ? materialIndex : 0
-
-			} );
-
-		},
-
-		clearGroups: function () {
-
-			this.groups = [];
-
-		},
-
-		setDrawRange: function ( start, count ) {
-
-			this.drawRange.start = start;
-			this.drawRange.count = count;
-
-		},
-
-		applyMatrix: function ( matrix ) {
-
-			var position = this.attributes.position;
-
-			if ( position !== undefined ) {
-
-				matrix.applyToBufferAttribute( position );
-				position.needsUpdate = true;
-
-			}
-
-			var normal = this.attributes.normal;
-
-			if ( normal !== undefined ) {
-
-				var normalMatrix = new Matrix3().getNormalMatrix( matrix );
-
-				normalMatrix.applyToBufferAttribute( normal );
-				normal.needsUpdate = true;
-
-			}
-
-			if ( this.boundingBox !== null ) {
-
-				this.computeBoundingBox();
-
-			}
-
-			if ( this.boundingSphere !== null ) {
-
-				this.computeBoundingSphere();
-
-			}
-
-			return this;
-
-		},
-
-		rotateX: function () {
-
-			// rotate geometry around world x-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateX( angle ) {
-
-				m1.makeRotationX( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateY: function () {
-
-			// rotate geometry around world y-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateY( angle ) {
-
-				m1.makeRotationY( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		rotateZ: function () {
-
-			// rotate geometry around world z-axis
-
-			var m1 = new Matrix4();
-
-			return function rotateZ( angle ) {
-
-				m1.makeRotationZ( angle );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		translate: function () {
-
-			// translate geometry
-
-			var m1 = new Matrix4();
-
-			return function translate( x, y, z ) {
-
-				m1.makeTranslation( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		scale: function () {
-
-			// scale geometry
-
-			var m1 = new Matrix4();
-
-			return function scale( x, y, z ) {
-
-				m1.makeScale( x, y, z );
-
-				this.applyMatrix( m1 );
-
-				return this;
-
-			};
-
-		}(),
-
-		lookAt: function () {
-
-			var obj = new Object3D();
-
-			return function lookAt( vector ) {
-
-				obj.lookAt( vector );
-
-				obj.updateMatrix();
-
-				this.applyMatrix( obj.matrix );
-
-			};
-
-		}(),
-
-		center: function () {
-
-			this.computeBoundingBox();
-
-			var offset = this.boundingBox.getCenter().negate();
-
-			this.translate( offset.x, offset.y, offset.z );
-
-			return offset;
-
-		},
-
-		setFromObject: function ( object ) {
-
-			// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );
-
-			var geometry = object.geometry;
-
-			if ( object.isPoints || object.isLine ) {
-
-				var positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );
-				var colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );
-
-				this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );
-				this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );
-
-				if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {
-
-					var lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );
-
-					this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );
-
-				}
-
-				if ( geometry.boundingSphere !== null ) {
-
-					this.boundingSphere = geometry.boundingSphere.clone();
-
-				}
-
-				if ( geometry.boundingBox !== null ) {
-
-					this.boundingBox = geometry.boundingBox.clone();
-
-				}
-
-			} else if ( object.isMesh ) {
-
-				if ( geometry && geometry.isGeometry ) {
-
-					this.fromGeometry( geometry );
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			var position = [];
-
-			for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-				var point = points[ i ];
-				position.push( point.x, point.y, point.z || 0 );
-
-			}
-
-			this.addAttribute( 'position', new Float32BufferAttribute( position, 3 ) );
-
-			return this;
-
-		},
-
-		updateFromObject: function ( object ) {
-
-			var geometry = object.geometry;
-
-			if ( object.isMesh ) {
-
-				var direct = geometry.__directGeometry;
-
-				if ( geometry.elementsNeedUpdate === true ) {
-
-					direct = undefined;
-					geometry.elementsNeedUpdate = false;
-
-				}
-
-				if ( direct === undefined ) {
-
-					return this.fromGeometry( geometry );
-
-				}
-
-				direct.verticesNeedUpdate = geometry.verticesNeedUpdate;
-				direct.normalsNeedUpdate = geometry.normalsNeedUpdate;
-				direct.colorsNeedUpdate = geometry.colorsNeedUpdate;
-				direct.uvsNeedUpdate = geometry.uvsNeedUpdate;
-				direct.groupsNeedUpdate = geometry.groupsNeedUpdate;
-
-				geometry.verticesNeedUpdate = false;
-				geometry.normalsNeedUpdate = false;
-				geometry.colorsNeedUpdate = false;
-				geometry.uvsNeedUpdate = false;
-				geometry.groupsNeedUpdate = false;
-
-				geometry = direct;
-
-			}
-
-			var attribute;
-
-			if ( geometry.verticesNeedUpdate === true ) {
-
-				attribute = this.attributes.position;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyVector3sArray( geometry.vertices );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.verticesNeedUpdate = false;
-
-			}
-
-			if ( geometry.normalsNeedUpdate === true ) {
-
-				attribute = this.attributes.normal;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyVector3sArray( geometry.normals );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.normalsNeedUpdate = false;
-
-			}
-
-			if ( geometry.colorsNeedUpdate === true ) {
-
-				attribute = this.attributes.color;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyColorsArray( geometry.colors );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.colorsNeedUpdate = false;
-
-			}
-
-			if ( geometry.uvsNeedUpdate ) {
-
-				attribute = this.attributes.uv;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyVector2sArray( geometry.uvs );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.uvsNeedUpdate = false;
-
-			}
-
-			if ( geometry.lineDistancesNeedUpdate ) {
-
-				attribute = this.attributes.lineDistance;
-
-				if ( attribute !== undefined ) {
-
-					attribute.copyArray( geometry.lineDistances );
-					attribute.needsUpdate = true;
-
-				}
-
-				geometry.lineDistancesNeedUpdate = false;
-
-			}
-
-			if ( geometry.groupsNeedUpdate ) {
-
-				geometry.computeGroups( object.geometry );
-				this.groups = geometry.groups;
-
-				geometry.groupsNeedUpdate = false;
-
-			}
-
-			return this;
-
-		},
-
-		fromGeometry: function ( geometry ) {
-
-			geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );
-
-			return this.fromDirectGeometry( geometry.__directGeometry );
-
-		},
-
-		fromDirectGeometry: function ( geometry ) {
-
-			var positions = new Float32Array( geometry.vertices.length * 3 );
-			this.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );
-
-			if ( geometry.normals.length > 0 ) {
-
-				var normals = new Float32Array( geometry.normals.length * 3 );
-				this.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );
-
-			}
-
-			if ( geometry.colors.length > 0 ) {
-
-				var colors = new Float32Array( geometry.colors.length * 3 );
-				this.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );
-
-			}
-
-			if ( geometry.uvs.length > 0 ) {
-
-				var uvs = new Float32Array( geometry.uvs.length * 2 );
-				this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );
-
-			}
-
-			if ( geometry.uvs2.length > 0 ) {
-
-				var uvs2 = new Float32Array( geometry.uvs2.length * 2 );
-				this.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );
-
-			}
-
-			if ( geometry.indices.length > 0 ) {
-
-				var TypeArray = arrayMax( geometry.indices ) > 65535 ? Uint32Array : Uint16Array;
-				var indices = new TypeArray( geometry.indices.length * 3 );
-				this.setIndex( new BufferAttribute( indices, 1 ).copyIndicesArray( geometry.indices ) );
-
-			}
-
-			// groups
-
-			this.groups = geometry.groups;
-
-			// morphs
-
-			for ( var name in geometry.morphTargets ) {
-
-				var array = [];
-				var morphTargets = geometry.morphTargets[ name ];
-
-				for ( var i = 0, l = morphTargets.length; i < l; i ++ ) {
-
-					var morphTarget = morphTargets[ i ];
-
-					var attribute = new Float32BufferAttribute( morphTarget.length * 3, 3 );
-
-					array.push( attribute.copyVector3sArray( morphTarget ) );
-
-				}
-
-				this.morphAttributes[ name ] = array;
-
-			}
-
-			// skinning
-
-			if ( geometry.skinIndices.length > 0 ) {
-
-				var skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );
-				this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );
-
-			}
-
-			if ( geometry.skinWeights.length > 0 ) {
-
-				var skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );
-				this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );
-
-			}
-
-			//
-
-			if ( geometry.boundingSphere !== null ) {
-
-				this.boundingSphere = geometry.boundingSphere.clone();
-
-			}
-
-			if ( geometry.boundingBox !== null ) {
-
-				this.boundingBox = geometry.boundingBox.clone();
-
-			}
-
-			return this;
-
-		},
-
-		computeBoundingBox: function () {
-
-			if ( this.boundingBox === null ) {
-
-				this.boundingBox = new Box3();
-
-			}
-
-			var position = this.attributes.position;
-
-			if ( position !== undefined ) {
-
-				this.boundingBox.setFromBufferAttribute( position );
-
-			} else {
-
-				this.boundingBox.makeEmpty();
-
-			}
-
-			if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {
-
-				console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );
-
-			}
-
-		},
-
-		computeBoundingSphere: function () {
-
-			var box = new Box3();
-			var vector = new Vector3();
-
-			return function computeBoundingSphere() {
-
-				if ( this.boundingSphere === null ) {
-
-					this.boundingSphere = new Sphere();
-
-				}
-
-				var position = this.attributes.position;
-
-				if ( position ) {
-
-					var center = this.boundingSphere.center;
-
-					box.setFromBufferAttribute( position );
-					box.getCenter( center );
-
-					// hoping to find a boundingSphere with a radius smaller than the
-					// boundingSphere of the boundingBox: sqrt(3) smaller in the best case
-
-					var maxRadiusSq = 0;
-
-					for ( var i = 0, il = position.count; i < il; i ++ ) {
-
-						vector.x = position.getX( i );
-						vector.y = position.getY( i );
-						vector.z = position.getZ( i );
-						maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );
-
-					}
-
-					this.boundingSphere.radius = Math.sqrt( maxRadiusSq );
-
-					if ( isNaN( this.boundingSphere.radius ) ) {
-
-						console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );
-
-					}
-
-				}
-
-			};
-
-		}(),
-
-		computeFaceNormals: function () {
-
-			// backwards compatibility
-
-		},
-
-		computeVertexNormals: function () {
-
-			var index = this.index;
-			var attributes = this.attributes;
-			var groups = this.groups;
-
-			if ( attributes.position ) {
-
-				var positions = attributes.position.array;
-
-				if ( attributes.normal === undefined ) {
-
-					this.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );
-
-				} else {
-
-					// reset existing normals to zero
-
-					var array = attributes.normal.array;
-
-					for ( var i = 0, il = array.length; i < il; i ++ ) {
-
-						array[ i ] = 0;
-
-					}
-
-				}
-
-				var normals = attributes.normal.array;
-
-				var vA, vB, vC;
-				var pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
-				var cb = new Vector3(), ab = new Vector3();
-
-				// indexed elements
-
-				if ( index ) {
-
-					var indices = index.array;
-
-					if ( groups.length === 0 ) {
-
-						this.addGroup( 0, indices.length );
-
-					}
-
-					for ( var j = 0, jl = groups.length; j < jl; ++ j ) {
-
-						var group = groups[ j ];
-
-						var start = group.start;
-						var count = group.count;
-
-						for ( var i = start, il = start + count; i < il; i += 3 ) {
-
-							vA = indices[ i + 0 ] * 3;
-							vB = indices[ i + 1 ] * 3;
-							vC = indices[ i + 2 ] * 3;
-
-							pA.fromArray( positions, vA );
-							pB.fromArray( positions, vB );
-							pC.fromArray( positions, vC );
-
-							cb.subVectors( pC, pB );
-							ab.subVectors( pA, pB );
-							cb.cross( ab );
-
-							normals[ vA ] += cb.x;
-							normals[ vA + 1 ] += cb.y;
-							normals[ vA + 2 ] += cb.z;
-
-							normals[ vB ] += cb.x;
-							normals[ vB + 1 ] += cb.y;
-							normals[ vB + 2 ] += cb.z;
-
-							normals[ vC ] += cb.x;
-							normals[ vC + 1 ] += cb.y;
-							normals[ vC + 2 ] += cb.z;
-
-						}
-
-					}
-
-				} else {
-
-					// non-indexed elements (unconnected triangle soup)
-
-					for ( var i = 0, il = positions.length; i < il; i += 9 ) {
-
-						pA.fromArray( positions, i );
-						pB.fromArray( positions, i + 3 );
-						pC.fromArray( positions, i + 6 );
-
-						cb.subVectors( pC, pB );
-						ab.subVectors( pA, pB );
-						cb.cross( ab );
-
-						normals[ i ] = cb.x;
-						normals[ i + 1 ] = cb.y;
-						normals[ i + 2 ] = cb.z;
-
-						normals[ i + 3 ] = cb.x;
-						normals[ i + 4 ] = cb.y;
-						normals[ i + 5 ] = cb.z;
-
-						normals[ i + 6 ] = cb.x;
-						normals[ i + 7 ] = cb.y;
-						normals[ i + 8 ] = cb.z;
-
-					}
-
-				}
-
-				this.normalizeNormals();
-
-				attributes.normal.needsUpdate = true;
-
-			}
-
-		},
-
-		merge: function ( geometry, offset ) {
-
-			if ( ! ( geometry && geometry.isBufferGeometry ) ) {
-
-				console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
-				return;
-
-			}
-
-			if ( offset === undefined ) offset = 0;
-
-			var attributes = this.attributes;
-
-			for ( var key in attributes ) {
-
-				if ( geometry.attributes[ key ] === undefined ) continue;
-
-				var attribute1 = attributes[ key ];
-				var attributeArray1 = attribute1.array;
-
-				var attribute2 = geometry.attributes[ key ];
-				var attributeArray2 = attribute2.array;
-
-				var attributeSize = attribute2.itemSize;
-
-				for ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {
-
-					attributeArray1[ j ] = attributeArray2[ i ];
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		normalizeNormals: function () {
-
-			var vector = new Vector3();
-
-			return function normalizeNormals() {
-
-				var normals = this.attributes.normal;
-
-				for ( var i = 0, il = normals.count; i < il; i ++ ) {
-
-					vector.x = normals.getX( i );
-					vector.y = normals.getY( i );
-					vector.z = normals.getZ( i );
-
-					vector.normalize();
-
-					normals.setXYZ( i, vector.x, vector.y, vector.z );
-
-				}
-
-			};
-
-		}(),
-
-		toNonIndexed: function () {
-
-			if ( this.index === null ) {
-
-				console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );
-				return this;
-
-			}
-
-			var geometry2 = new BufferGeometry();
-
-			var indices = this.index.array;
-			var attributes = this.attributes;
-
-			for ( var name in attributes ) {
-
-				var attribute = attributes[ name ];
-
-				var array = attribute.array;
-				var itemSize = attribute.itemSize;
-
-				var array2 = new array.constructor( indices.length * itemSize );
-
-				var index = 0, index2 = 0;
-
-				for ( var i = 0, l = indices.length; i < l; i ++ ) {
-
-					index = indices[ i ] * itemSize;
-
-					for ( var j = 0; j < itemSize; j ++ ) {
-
-						array2[ index2 ++ ] = array[ index ++ ];
-
-					}
-
-				}
-
-				geometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) );
-
-			}
-
-			return geometry2;
-
-		},
-
-		toJSON: function () {
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'BufferGeometry',
-					generator: 'BufferGeometry.toJSON'
-				}
-			};
-
-			// standard BufferGeometry serialization
-
-			data.uuid = this.uuid;
-			data.type = this.type;
-			if ( this.name !== '' ) data.name = this.name;
-
-			if ( this.parameters !== undefined ) {
-
-				var parameters = this.parameters;
-
-				for ( var key in parameters ) {
-
-					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];
-
-				}
-
-				return data;
-
-			}
-
-			data.data = { attributes: {} };
-
-			var index = this.index;
-
-			if ( index !== null ) {
-
-				var array = Array.prototype.slice.call( index.array );
-
-				data.data.index = {
-					type: index.array.constructor.name,
-					array: array
-				};
-
-			}
-
-			var attributes = this.attributes;
-
-			for ( var key in attributes ) {
-
-				var attribute = attributes[ key ];
-
-				var array = Array.prototype.slice.call( attribute.array );
-
-				data.data.attributes[ key ] = {
-					itemSize: attribute.itemSize,
-					type: attribute.array.constructor.name,
-					array: array,
-					normalized: attribute.normalized
-				};
-
-			}
-
-			var groups = this.groups;
-
-			if ( groups.length > 0 ) {
-
-				data.data.groups = JSON.parse( JSON.stringify( groups ) );
-
-			}
-
-			var boundingSphere = this.boundingSphere;
-
-			if ( boundingSphere !== null ) {
-
-				data.data.boundingSphere = {
-					center: boundingSphere.center.toArray(),
-					radius: boundingSphere.radius
-				};
-
-			}
-
-			return data;
-
-		},
-
-		clone: function () {
-
-			/*
-			 // Handle primitives
-
-			 var parameters = this.parameters;
-
-			 if ( parameters !== undefined ) {
-
-			 var values = [];
-
-			 for ( var key in parameters ) {
-
-			 values.push( parameters[ key ] );
-
-			 }
-
-			 var geometry = Object.create( this.constructor.prototype );
-			 this.constructor.apply( geometry, values );
-			 return geometry;
-
-			 }
-
-			 return new this.constructor().copy( this );
-			 */
-
-			return new BufferGeometry().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			var name, i, l;
-
-			// reset
-
-			this.index = null;
-			this.attributes = {};
-			this.morphAttributes = {};
-			this.groups = [];
-			this.boundingBox = null;
-			this.boundingSphere = null;
-
-			// name
-
-			this.name = source.name;
-
-			// index
-
-			var index = source.index;
-
-			if ( index !== null ) {
-
-				this.setIndex( index.clone() );
-
-			}
-
-			// attributes
-
-			var attributes = source.attributes;
-
-			for ( name in attributes ) {
-
-				var attribute = attributes[ name ];
-				this.addAttribute( name, attribute.clone() );
-
-			}
-
-			// morph attributes
-
-			var morphAttributes = source.morphAttributes;
-
-			for ( name in morphAttributes ) {
-
-				var array = [];
-				var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes
-
-				for ( i = 0, l = morphAttribute.length; i < l; i ++ ) {
-
-					array.push( morphAttribute[ i ].clone() );
-
-				}
-
-				this.morphAttributes[ name ] = array;
-
-			}
-
-			// groups
-
-			var groups = source.groups;
-
-			for ( i = 0, l = groups.length; i < l; i ++ ) {
-
-				var group = groups[ i ];
-				this.addGroup( group.start, group.count, group.materialIndex );
-
-			}
-
-			// bounding box
-
-			var boundingBox = source.boundingBox;
-
-			if ( boundingBox !== null ) {
-
-				this.boundingBox = boundingBox.clone();
-
-			}
-
-			// bounding sphere
-
-			var boundingSphere = source.boundingSphere;
-
-			if ( boundingSphere !== null ) {
-
-				this.boundingSphere = boundingSphere.clone();
-
-			}
-
-			// draw range
-
-			this.drawRange.start = source.drawRange.start;
-			this.drawRange.count = source.drawRange.count;
-
-			return this;
-
-		},
-
-		dispose: function () {
-
-			this.dispatchEvent( { type: 'dispose' } );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// BoxGeometry
-
-	function BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
-
-		Geometry.call( this );
-
-		this.type = 'BoxGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			depth: depth,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			depthSegments: depthSegments
-		};
-
-		this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );
-		this.mergeVertices();
-
-	}
-
-	BoxGeometry.prototype = Object.create( Geometry.prototype );
-	BoxGeometry.prototype.constructor = BoxGeometry;
-
-	// BoxBufferGeometry
-
-	function BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'BoxBufferGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			depth: depth,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			depthSegments: depthSegments
-		};
-
-		var scope = this;
-
-		width = width || 1;
-		height = height || 1;
-		depth = depth || 1;
-
-		// segments
-
-		widthSegments = Math.floor( widthSegments ) || 1;
-		heightSegments = Math.floor( heightSegments ) || 1;
-		depthSegments = Math.floor( depthSegments ) || 1;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var numberOfVertices = 0;
-		var groupStart = 0;
-
-		// build each side of the box geometry
-
-		buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px
-		buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx
-		buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py
-		buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny
-		buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz
-		buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {
-
-			var segmentWidth = width / gridX;
-			var segmentHeight = height / gridY;
-
-			var widthHalf = width / 2;
-			var heightHalf = height / 2;
-			var depthHalf = depth / 2;
-
-			var gridX1 = gridX + 1;
-			var gridY1 = gridY + 1;
-
-			var vertexCounter = 0;
-			var groupCount = 0;
-
-			var ix, iy;
-
-			var vector = new Vector3();
-
-			// generate vertices, normals and uvs
-
-			for ( iy = 0; iy < gridY1; iy ++ ) {
-
-				var y = iy * segmentHeight - heightHalf;
-
-				for ( ix = 0; ix < gridX1; ix ++ ) {
-
-					var x = ix * segmentWidth - widthHalf;
-
-					// set values to correct vector component
-
-					vector[ u ] = x * udir;
-					vector[ v ] = y * vdir;
-					vector[ w ] = depthHalf;
-
-					// now apply vector to vertex buffer
-
-					vertices.push( vector.x, vector.y, vector.z );
-
-					// set values to correct vector component
-
-					vector[ u ] = 0;
-					vector[ v ] = 0;
-					vector[ w ] = depth > 0 ? 1 : - 1;
-
-					// now apply vector to normal buffer
-
-					normals.push( vector.x, vector.y, vector.z );
-
-					// uvs
-
-					uvs.push( ix / gridX );
-					uvs.push( 1 - ( iy / gridY ) );
-
-					// counters
-
-					vertexCounter += 1;
-
-				}
-
-			}
-
-			// indices
-
-			// 1. you need three indices to draw a single face
-			// 2. a single segment consists of two faces
-			// 3. so we need to generate six (2*3) indices per segment
-
-			for ( iy = 0; iy < gridY; iy ++ ) {
-
-				for ( ix = 0; ix < gridX; ix ++ ) {
-
-					var a = numberOfVertices + ix + gridX1 * iy;
-					var b = numberOfVertices + ix + gridX1 * ( iy + 1 );
-					var c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
-					var d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;
-
-					// faces
-
-					indices.push( a, b, d );
-					indices.push( b, c, d );
-
-					// increase counter
-
-					groupCount += 6;
-
-				}
-
-			}
-
-			// add a group to the geometry. this will ensure multi material support
-
-			scope.addGroup( groupStart, groupCount, materialIndex );
-
-			// calculate new start value for groups
-
-			groupStart += groupCount;
-
-			// update total number of vertices
-
-			numberOfVertices += vertexCounter;
-
-		}
-
-	}
-
-	BoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	BoxBufferGeometry.prototype.constructor = BoxBufferGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// PlaneGeometry
-
-	function PlaneGeometry( width, height, widthSegments, heightSegments ) {
-
-		Geometry.call( this );
-
-		this.type = 'PlaneGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments
-		};
-
-		this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );
-		this.mergeVertices();
-
-	}
-
-	PlaneGeometry.prototype = Object.create( Geometry.prototype );
-	PlaneGeometry.prototype.constructor = PlaneGeometry;
-
-	// PlaneBufferGeometry
-
-	function PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'PlaneBufferGeometry';
-
-		this.parameters = {
-			width: width,
-			height: height,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments
-		};
-
-		width = width || 1;
-		height = height || 1;
-
-		var width_half = width / 2;
-		var height_half = height / 2;
-
-		var gridX = Math.floor( widthSegments ) || 1;
-		var gridY = Math.floor( heightSegments ) || 1;
-
-		var gridX1 = gridX + 1;
-		var gridY1 = gridY + 1;
-
-		var segment_width = width / gridX;
-		var segment_height = height / gridY;
-
-		var ix, iy;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// generate vertices, normals and uvs
-
-		for ( iy = 0; iy < gridY1; iy ++ ) {
-
-			var y = iy * segment_height - height_half;
-
-			for ( ix = 0; ix < gridX1; ix ++ ) {
-
-				var x = ix * segment_width - width_half;
-
-				vertices.push( x, - y, 0 );
-
-				normals.push( 0, 0, 1 );
-
-				uvs.push( ix / gridX );
-				uvs.push( 1 - ( iy / gridY ) );
-
-			}
-
-		}
-
-		// indices
-
-		for ( iy = 0; iy < gridY; iy ++ ) {
-
-			for ( ix = 0; ix < gridX; ix ++ ) {
-
-				var a = ix + gridX1 * iy;
-				var b = ix + gridX1 * ( iy + 1 );
-				var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
-				var d = ( ix + 1 ) + gridX1 * iy;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	PlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	PlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  specularMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
-	 *  combine: THREE.Multiply,
-	 *  reflectivity: <float>,
-	 *  refractionRatio: <float>,
-	 *
-	 *  depthTest: <bool>,
-	 *  depthWrite: <bool>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>
-	 * }
-	 */
-
-	function MeshBasicMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshBasicMaterial';
-
-		this.color = new Color( 0xffffff ); // emissive
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.specularMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.combine = MultiplyOperation;
-		this.reflectivity = 1;
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshBasicMaterial.prototype = Object.create( Material.prototype );
-	MeshBasicMaterial.prototype.constructor = MeshBasicMaterial;
-
-	MeshBasicMaterial.prototype.isMeshBasicMaterial = true;
-
-	MeshBasicMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.specularMap = source.specularMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.combine = source.combine;
-		this.reflectivity = source.reflectivity;
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-
-		return this;
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  defines: { "label" : "value" },
-	 *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
-	 *
-	 *  fragmentShader: <string>,
-	 *  vertexShader: <string>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  lights: <bool>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function ShaderMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'ShaderMaterial';
-
-		this.defines = {};
-		this.uniforms = {};
-
-		this.vertexShader = 'void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}';
-		this.fragmentShader = 'void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}';
-
-		this.linewidth = 1;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-
-		this.fog = false; // set to use scene fog
-		this.lights = false; // set to use scene lights
-		this.clipping = false; // set to use user-defined clipping planes
-
-		this.skinning = false; // set to use skinning attribute streams
-		this.morphTargets = false; // set to use morph targets
-		this.morphNormals = false; // set to use morph normals
-
-		this.extensions = {
-			derivatives: false, // set to use derivatives
-			fragDepth: false, // set to use fragment depth values
-			drawBuffers: false, // set to use draw buffers
-			shaderTextureLOD: false // set to use shader texture LOD
-		};
-
-		// When rendered geometry doesn't include these attributes but the material does,
-		// use these default values in WebGL. This avoids errors when buffer data is missing.
-		this.defaultAttributeValues = {
-			'color': [ 1, 1, 1 ],
-			'uv': [ 0, 0 ],
-			'uv2': [ 0, 0 ]
-		};
-
-		this.index0AttributeName = undefined;
-		this.uniformsNeedUpdate = false;
-
-		if ( parameters !== undefined ) {
-
-			if ( parameters.attributes !== undefined ) {
-
-				console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );
-
-			}
-
-			this.setValues( parameters );
-
-		}
-
-	}
-
-	ShaderMaterial.prototype = Object.create( Material.prototype );
-	ShaderMaterial.prototype.constructor = ShaderMaterial;
-
-	ShaderMaterial.prototype.isShaderMaterial = true;
-
-	ShaderMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.fragmentShader = source.fragmentShader;
-		this.vertexShader = source.vertexShader;
-
-		this.uniforms = UniformsUtils.clone( source.uniforms );
-
-		this.defines = source.defines;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-
-		this.lights = source.lights;
-		this.clipping = source.clipping;
-
-		this.skinning = source.skinning;
-
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		this.extensions = source.extensions;
-
-		return this;
-
-	};
-
-	ShaderMaterial.prototype.toJSON = function ( meta ) {
-
-		var data = Material.prototype.toJSON.call( this, meta );
-
-		data.uniforms = this.uniforms;
-		data.vertexShader = this.vertexShader;
-		data.fragmentShader = this.fragmentShader;
-
-		return data;
-
-	};
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Ray( origin, direction ) {
-
-		this.origin = ( origin !== undefined ) ? origin : new Vector3();
-		this.direction = ( direction !== undefined ) ? direction : new Vector3();
-
-	}
-
-	Object.assign( Ray.prototype, {
-
-		set: function ( origin, direction ) {
-
-			this.origin.copy( origin );
-			this.direction.copy( direction );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( ray ) {
-
-			this.origin.copy( ray.origin );
-			this.direction.copy( ray.direction );
-
-			return this;
-
-		},
-
-		at: function ( t, optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-
-			return result.copy( this.direction ).multiplyScalar( t ).add( this.origin );
-
-		},
-
-		lookAt: function ( v ) {
-
-			this.direction.copy( v ).sub( this.origin ).normalize();
-
-			return this;
-
-		},
-
-		recast: function () {
-
-			var v1 = new Vector3();
-
-			return function recast( t ) {
-
-				this.origin.copy( this.at( t, v1 ) );
-
-				return this;
-
-			};
-
-		}(),
-
-		closestPointToPoint: function ( point, optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-			result.subVectors( point, this.origin );
-			var directionDistance = result.dot( this.direction );
-
-			if ( directionDistance < 0 ) {
-
-				return result.copy( this.origin );
-
-			}
-
-			return result.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
-
-		},
-
-		distanceToPoint: function ( point ) {
-
-			return Math.sqrt( this.distanceSqToPoint( point ) );
-
-		},
-
-		distanceSqToPoint: function () {
-
-			var v1 = new Vector3();
-
-			return function distanceSqToPoint( point ) {
-
-				var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );
-
-				// point behind the ray
-
-				if ( directionDistance < 0 ) {
-
-					return this.origin.distanceToSquared( point );
-
-				}
-
-				v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );
-
-				return v1.distanceToSquared( point );
-
-			};
-
-		}(),
-
-		distanceSqToSegment: function () {
-
-			var segCenter = new Vector3();
-			var segDir = new Vector3();
-			var diff = new Vector3();
-
-			return function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {
-
-				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
-				// It returns the min distance between the ray and the segment
-				// defined by v0 and v1
-				// It can also set two optional targets :
-				// - The closest point on the ray
-				// - The closest point on the segment
-
-				segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
-				segDir.copy( v1 ).sub( v0 ).normalize();
-				diff.copy( this.origin ).sub( segCenter );
-
-				var segExtent = v0.distanceTo( v1 ) * 0.5;
-				var a01 = - this.direction.dot( segDir );
-				var b0 = diff.dot( this.direction );
-				var b1 = - diff.dot( segDir );
-				var c = diff.lengthSq();
-				var det = Math.abs( 1 - a01 * a01 );
-				var s0, s1, sqrDist, extDet;
-
-				if ( det > 0 ) {
-
-					// The ray and segment are not parallel.
-
-					s0 = a01 * b1 - b0;
-					s1 = a01 * b0 - b1;
-					extDet = segExtent * det;
-
-					if ( s0 >= 0 ) {
-
-						if ( s1 >= - extDet ) {
-
-							if ( s1 <= extDet ) {
-
-								// region 0
-								// Minimum at interior points of ray and segment.
-
-								var invDet = 1 / det;
-								s0 *= invDet;
-								s1 *= invDet;
-								sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;
-
-							} else {
-
-								// region 1
-
-								s1 = segExtent;
-								s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-								sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-							}
-
-						} else {
-
-							// region 5
-
-							s1 = - segExtent;
-							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-						}
-
-					} else {
-
-						if ( s1 <= - extDet ) {
-
-							// region 4
-
-							s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
-							s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
-							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-						} else if ( s1 <= extDet ) {
-
-							// region 3
-
-							s0 = 0;
-							s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
-							sqrDist = s1 * ( s1 + 2 * b1 ) + c;
-
-						} else {
-
-							// region 2
-
-							s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
-							s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
-							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-						}
-
-					}
-
-				} else {
-
-					// Ray and segment are parallel.
-
-					s1 = ( a01 > 0 ) ? - segExtent : segExtent;
-					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
-					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;
-
-				}
-
-				if ( optionalPointOnRay ) {
-
-					optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );
-
-				}
-
-				if ( optionalPointOnSegment ) {
-
-					optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );
-
-				}
-
-				return sqrDist;
-
-			};
-
-		}(),
-
-		intersectSphere: function () {
-
-			var v1 = new Vector3();
-
-			return function intersectSphere( sphere, optionalTarget ) {
-
-				v1.subVectors( sphere.center, this.origin );
-				var tca = v1.dot( this.direction );
-				var d2 = v1.dot( v1 ) - tca * tca;
-				var radius2 = sphere.radius * sphere.radius;
-
-				if ( d2 > radius2 ) return null;
-
-				var thc = Math.sqrt( radius2 - d2 );
-
-				// t0 = first intersect point - entrance on front of sphere
-				var t0 = tca - thc;
-
-				// t1 = second intersect point - exit point on back of sphere
-				var t1 = tca + thc;
-
-				// test to see if both t0 and t1 are behind the ray - if so, return null
-				if ( t0 < 0 && t1 < 0 ) return null;
-
-				// test to see if t0 is behind the ray:
-				// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
-				// in order to always return an intersect point that is in front of the ray.
-				if ( t0 < 0 ) return this.at( t1, optionalTarget );
-
-				// else t0 is in front of the ray, so return the first collision point scaled by t0
-				return this.at( t0, optionalTarget );
-
-			};
-
-		}(),
-
-		intersectsSphere: function ( sphere ) {
-
-			return this.distanceToPoint( sphere.center ) <= sphere.radius;
-
-		},
-
-		distanceToPlane: function ( plane ) {
-
-			var denominator = plane.normal.dot( this.direction );
-
-			if ( denominator === 0 ) {
-
-				// line is coplanar, return origin
-				if ( plane.distanceToPoint( this.origin ) === 0 ) {
-
-					return 0;
-
-				}
-
-				// Null is preferable to undefined since undefined means.... it is undefined
-
-				return null;
-
-			}
-
-			var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;
-
-			// Return if the ray never intersects the plane
-
-			return t >= 0 ? t : null;
-
-		},
-
-		intersectPlane: function ( plane, optionalTarget ) {
-
-			var t = this.distanceToPlane( plane );
-
-			if ( t === null ) {
-
-				return null;
-
-			}
-
-			return this.at( t, optionalTarget );
-
-		},
-
-		intersectsPlane: function ( plane ) {
-
-			// check if the ray lies on the plane first
-
-			var distToPoint = plane.distanceToPoint( this.origin );
-
-			if ( distToPoint === 0 ) {
-
-				return true;
-
-			}
-
-			var denominator = plane.normal.dot( this.direction );
-
-			if ( denominator * distToPoint < 0 ) {
-
-				return true;
-
-			}
-
-			// ray origin is behind the plane (and is pointing behind it)
-
-			return false;
-
-		},
-
-		intersectBox: function ( box, optionalTarget ) {
-
-			var tmin, tmax, tymin, tymax, tzmin, tzmax;
-
-			var invdirx = 1 / this.direction.x,
-				invdiry = 1 / this.direction.y,
-				invdirz = 1 / this.direction.z;
-
-			var origin = this.origin;
-
-			if ( invdirx >= 0 ) {
-
-				tmin = ( box.min.x - origin.x ) * invdirx;
-				tmax = ( box.max.x - origin.x ) * invdirx;
-
-			} else {
-
-				tmin = ( box.max.x - origin.x ) * invdirx;
-				tmax = ( box.min.x - origin.x ) * invdirx;
-
-			}
-
-			if ( invdiry >= 0 ) {
-
-				tymin = ( box.min.y - origin.y ) * invdiry;
-				tymax = ( box.max.y - origin.y ) * invdiry;
-
-			} else {
-
-				tymin = ( box.max.y - origin.y ) * invdiry;
-				tymax = ( box.min.y - origin.y ) * invdiry;
-
-			}
-
-			if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;
-
-			// These lines also handle the case where tmin or tmax is NaN
-			// (result of 0 * Infinity). x !== x returns true if x is NaN
-
-			if ( tymin > tmin || tmin !== tmin ) tmin = tymin;
-
-			if ( tymax < tmax || tmax !== tmax ) tmax = tymax;
-
-			if ( invdirz >= 0 ) {
-
-				tzmin = ( box.min.z - origin.z ) * invdirz;
-				tzmax = ( box.max.z - origin.z ) * invdirz;
-
-			} else {
-
-				tzmin = ( box.max.z - origin.z ) * invdirz;
-				tzmax = ( box.min.z - origin.z ) * invdirz;
-
-			}
-
-			if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;
-
-			if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;
-
-			if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;
-
-			//return point closest to the ray (positive side)
-
-			if ( tmax < 0 ) return null;
-
-			return this.at( tmin >= 0 ? tmin : tmax, optionalTarget );
-
-		},
-
-		intersectsBox: ( function () {
-
-			var v = new Vector3();
-
-			return function intersectsBox( box ) {
-
-				return this.intersectBox( box, v ) !== null;
-
-			};
-
-		} )(),
-
-		intersectTriangle: function () {
-
-			// Compute the offset origin, edges, and normal.
-			var diff = new Vector3();
-			var edge1 = new Vector3();
-			var edge2 = new Vector3();
-			var normal = new Vector3();
-
-			return function intersectTriangle( a, b, c, backfaceCulling, optionalTarget ) {
-
-				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
-
-				edge1.subVectors( b, a );
-				edge2.subVectors( c, a );
-				normal.crossVectors( edge1, edge2 );
-
-				// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
-				// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
-				//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
-				//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
-				//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
-				var DdN = this.direction.dot( normal );
-				var sign;
-
-				if ( DdN > 0 ) {
-
-					if ( backfaceCulling ) return null;
-					sign = 1;
-
-				} else if ( DdN < 0 ) {
-
-					sign = - 1;
-					DdN = - DdN;
-
-				} else {
-
-					return null;
-
-				}
-
-				diff.subVectors( this.origin, a );
-				var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );
-
-				// b1 < 0, no intersection
-				if ( DdQxE2 < 0 ) {
-
-					return null;
-
-				}
-
-				var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );
-
-				// b2 < 0, no intersection
-				if ( DdE1xQ < 0 ) {
-
-					return null;
-
-				}
-
-				// b1+b2 > 1, no intersection
-				if ( DdQxE2 + DdE1xQ > DdN ) {
-
-					return null;
-
-				}
-
-				// Line intersects triangle, check if ray does.
-				var QdN = - sign * diff.dot( normal );
-
-				// t < 0, no intersection
-				if ( QdN < 0 ) {
-
-					return null;
-
-				}
-
-				// Ray intersects triangle.
-				return this.at( QdN / DdN, optionalTarget );
-
-			};
-
-		}(),
-
-		applyMatrix4: function ( matrix4 ) {
-
-			this.origin.applyMatrix4( matrix4 );
-			this.direction.transformDirection( matrix4 );
-
-			return this;
-
-		},
-
-		equals: function ( ray ) {
-
-			return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Line3( start, end ) {
-
-		this.start = ( start !== undefined ) ? start : new Vector3();
-		this.end = ( end !== undefined ) ? end : new Vector3();
-
-	}
-
-	Object.assign( Line3.prototype, {
-
-		set: function ( start, end ) {
-
-			this.start.copy( start );
-			this.end.copy( end );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( line ) {
-
-			this.start.copy( line.start );
-			this.end.copy( line.end );
-
-			return this;
-
-		},
-
-		getCenter: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-			return result.addVectors( this.start, this.end ).multiplyScalar( 0.5 );
-
-		},
-
-		delta: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-			return result.subVectors( this.end, this.start );
-
-		},
-
-		distanceSq: function () {
-
-			return this.start.distanceToSquared( this.end );
-
-		},
-
-		distance: function () {
-
-			return this.start.distanceTo( this.end );
-
-		},
-
-		at: function ( t, optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-
-			return this.delta( result ).multiplyScalar( t ).add( this.start );
-
-		},
-
-		closestPointToPointParameter: function () {
-
-			var startP = new Vector3();
-			var startEnd = new Vector3();
-
-			return function closestPointToPointParameter( point, clampToLine ) {
-
-				startP.subVectors( point, this.start );
-				startEnd.subVectors( this.end, this.start );
-
-				var startEnd2 = startEnd.dot( startEnd );
-				var startEnd_startP = startEnd.dot( startP );
-
-				var t = startEnd_startP / startEnd2;
-
-				if ( clampToLine ) {
-
-					t = _Math.clamp( t, 0, 1 );
-
-				}
-
-				return t;
-
-			};
-
-		}(),
-
-		closestPointToPoint: function ( point, clampToLine, optionalTarget ) {
-
-			var t = this.closestPointToPointParameter( point, clampToLine );
-
-			var result = optionalTarget || new Vector3();
-
-			return this.delta( result ).multiplyScalar( t ).add( this.start );
-
-		},
-
-		applyMatrix4: function ( matrix ) {
-
-			this.start.applyMatrix4( matrix );
-			this.end.applyMatrix4( matrix );
-
-			return this;
-
-		},
-
-		equals: function ( line ) {
-
-			return line.start.equals( this.start ) && line.end.equals( this.end );
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Triangle( a, b, c ) {
-
-		this.a = ( a !== undefined ) ? a : new Vector3();
-		this.b = ( b !== undefined ) ? b : new Vector3();
-		this.c = ( c !== undefined ) ? c : new Vector3();
-
-	}
-
-	Object.assign( Triangle, {
-
-		normal: function () {
-
-			var v0 = new Vector3();
-
-			return function normal( a, b, c, optionalTarget ) {
-
-				var result = optionalTarget || new Vector3();
-
-				result.subVectors( c, b );
-				v0.subVectors( a, b );
-				result.cross( v0 );
-
-				var resultLengthSq = result.lengthSq();
-				if ( resultLengthSq > 0 ) {
-
-					return result.multiplyScalar( 1 / Math.sqrt( resultLengthSq ) );
-
-				}
-
-				return result.set( 0, 0, 0 );
-
-			};
-
-		}(),
-
-		// static/instance method to calculate barycentric coordinates
-		// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
-		barycoordFromPoint: function () {
-
-			var v0 = new Vector3();
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			return function barycoordFromPoint( point, a, b, c, optionalTarget ) {
-
-				v0.subVectors( c, a );
-				v1.subVectors( b, a );
-				v2.subVectors( point, a );
-
-				var dot00 = v0.dot( v0 );
-				var dot01 = v0.dot( v1 );
-				var dot02 = v0.dot( v2 );
-				var dot11 = v1.dot( v1 );
-				var dot12 = v1.dot( v2 );
-
-				var denom = ( dot00 * dot11 - dot01 * dot01 );
-
-				var result = optionalTarget || new Vector3();
-
-				// collinear or singular triangle
-				if ( denom === 0 ) {
-
-					// arbitrary location outside of triangle?
-					// not sure if this is the best idea, maybe should be returning undefined
-					return result.set( - 2, - 1, - 1 );
-
-				}
-
-				var invDenom = 1 / denom;
-				var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
-				var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;
-
-				// barycentric coordinates must always sum to 1
-				return result.set( 1 - u - v, v, u );
-
-			};
-
-		}(),
-
-		containsPoint: function () {
-
-			var v1 = new Vector3();
-
-			return function containsPoint( point, a, b, c ) {
-
-				var result = Triangle.barycoordFromPoint( point, a, b, c, v1 );
-
-				return ( result.x >= 0 ) && ( result.y >= 0 ) && ( ( result.x + result.y ) <= 1 );
-
-			};
-
-		}()
-
-	} );
-
-	Object.assign( Triangle.prototype, {
-
-		set: function ( a, b, c ) {
-
-			this.a.copy( a );
-			this.b.copy( b );
-			this.c.copy( c );
-
-			return this;
-
-		},
-
-		setFromPointsAndIndices: function ( points, i0, i1, i2 ) {
-
-			this.a.copy( points[ i0 ] );
-			this.b.copy( points[ i1 ] );
-			this.c.copy( points[ i2 ] );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( triangle ) {
-
-			this.a.copy( triangle.a );
-			this.b.copy( triangle.b );
-			this.c.copy( triangle.c );
-
-			return this;
-
-		},
-
-		area: function () {
-
-			var v0 = new Vector3();
-			var v1 = new Vector3();
-
-			return function area() {
-
-				v0.subVectors( this.c, this.b );
-				v1.subVectors( this.a, this.b );
-
-				return v0.cross( v1 ).length() * 0.5;
-
-			};
-
-		}(),
-
-		midpoint: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector3();
-			return result.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );
-
-		},
-
-		normal: function ( optionalTarget ) {
-
-			return Triangle.normal( this.a, this.b, this.c, optionalTarget );
-
-		},
-
-		plane: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Plane();
-
-			return result.setFromCoplanarPoints( this.a, this.b, this.c );
-
-		},
-
-		barycoordFromPoint: function ( point, optionalTarget ) {
-
-			return Triangle.barycoordFromPoint( point, this.a, this.b, this.c, optionalTarget );
-
-		},
-
-		containsPoint: function ( point ) {
-
-			return Triangle.containsPoint( point, this.a, this.b, this.c );
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			return box.intersectsTriangle( this );
-
-		},
-
-		closestPointToPoint: function () {
-
-			var plane = new Plane();
-			var edgeList = [ new Line3(), new Line3(), new Line3() ];
-			var projectedPoint = new Vector3();
-			var closestPoint = new Vector3();
-
-			return function closestPointToPoint( point, optionalTarget ) {
-
-				var result = optionalTarget || new Vector3();
-				var minDistance = Infinity;
-
-				// project the point onto the plane of the triangle
-
-				plane.setFromCoplanarPoints( this.a, this.b, this.c );
-				plane.projectPoint( point, projectedPoint );
-
-				// check if the projection lies within the triangle
-
-				if ( this.containsPoint( projectedPoint ) === true ) {
-
-					// if so, this is the closest point
-
-					result.copy( projectedPoint );
-
-				} else {
-
-					// if not, the point falls outside the triangle. the result is the closest point to the triangle's edges or vertices
-
-					edgeList[ 0 ].set( this.a, this.b );
-					edgeList[ 1 ].set( this.b, this.c );
-					edgeList[ 2 ].set( this.c, this.a );
-
-					for ( var i = 0; i < edgeList.length; i ++ ) {
-
-						edgeList[ i ].closestPointToPoint( projectedPoint, true, closestPoint );
-
-						var distance = projectedPoint.distanceToSquared( closestPoint );
-
-						if ( distance < minDistance ) {
-
-							minDistance = distance;
-
-							result.copy( closestPoint );
-
-						}
-
-					}
-
-				}
-
-				return result;
-
-			};
-
-		}(),
-
-		equals: function ( triangle ) {
-
-			return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author jonobr1 / http://jonobr1.com/
-	 */
-
-	function Mesh( geometry, material ) {
-
-		Object3D.call( this );
-
-		this.type = 'Mesh';
-
-		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
-		this.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );
-
-		this.drawMode = TrianglesDrawMode;
-
-		this.updateMorphTargets();
-
-	}
-
-	Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Mesh,
-
-		isMesh: true,
-
-		setDrawMode: function ( value ) {
-
-			this.drawMode = value;
-
-		},
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source );
-
-			this.drawMode = source.drawMode;
-
-			if ( source.morphTargetInfluences !== undefined ) {
-
-				this.morphTargetInfluences = source.morphTargetInfluences.slice();
-
-			}
-
-			if ( source.morphTargetDictionary !== undefined ) {
-
-				this.morphTargetDictionary = Object.assign( {}, source.morphTargetDictionary );
-
-			}
-
-			return this;
-
-		},
-
-		updateMorphTargets: function () {
-
-			var geometry = this.geometry;
-			var m, ml, name;
-
-			if ( geometry.isBufferGeometry ) {
-
-				var morphAttributes = geometry.morphAttributes;
-				var keys = Object.keys( morphAttributes );
-
-				if ( keys.length > 0 ) {
-
-					var morphAttribute = morphAttributes[ keys[ 0 ] ];
-
-					if ( morphAttribute !== undefined ) {
-
-						this.morphTargetInfluences = [];
-						this.morphTargetDictionary = {};
-
-						for ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {
-
-							name = morphAttribute[ m ].name || String( m );
-
-							this.morphTargetInfluences.push( 0 );
-							this.morphTargetDictionary[ name ] = m;
-
-						}
-
-					}
-
-				}
-
-			} else {
-
-				var morphTargets = geometry.morphTargets;
-
-				if ( morphTargets !== undefined && morphTargets.length > 0 ) {
-
-					this.morphTargetInfluences = [];
-					this.morphTargetDictionary = {};
-
-					for ( m = 0, ml = morphTargets.length; m < ml; m ++ ) {
-
-						name = morphTargets[ m ].name || String( m );
-
-						this.morphTargetInfluences.push( 0 );
-						this.morphTargetDictionary[ name ] = m;
-
-					}
-
-				}
-
-			}
-
-		},
-
-		raycast: ( function () {
-
-			var inverseMatrix = new Matrix4();
-			var ray = new Ray();
-			var sphere = new Sphere();
-
-			var vA = new Vector3();
-			var vB = new Vector3();
-			var vC = new Vector3();
-
-			var tempA = new Vector3();
-			var tempB = new Vector3();
-			var tempC = new Vector3();
-
-			var uvA = new Vector2();
-			var uvB = new Vector2();
-			var uvC = new Vector2();
-
-			var barycoord = new Vector3();
-
-			var intersectionPoint = new Vector3();
-			var intersectionPointWorld = new Vector3();
-
-			function uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {
-
-				Triangle.barycoordFromPoint( point, p1, p2, p3, barycoord );
-
-				uv1.multiplyScalar( barycoord.x );
-				uv2.multiplyScalar( barycoord.y );
-				uv3.multiplyScalar( barycoord.z );
-
-				uv1.add( uv2 ).add( uv3 );
-
-				return uv1.clone();
-
-			}
-
-			function checkIntersection( object, material, raycaster, ray, pA, pB, pC, point ) {
-
-				var intersect;
-
-				if ( material.side === BackSide ) {
-
-					intersect = ray.intersectTriangle( pC, pB, pA, true, point );
-
-				} else {
-
-					intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );
-
-				}
-
-				if ( intersect === null ) return null;
-
-				intersectionPointWorld.copy( point );
-				intersectionPointWorld.applyMatrix4( object.matrixWorld );
-
-				var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );
-
-				if ( distance < raycaster.near || distance > raycaster.far ) return null;
-
-				return {
-					distance: distance,
-					point: intersectionPointWorld.clone(),
-					object: object
-				};
-
-			}
-
-			function checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {
-
-				vA.fromBufferAttribute( position, a );
-				vB.fromBufferAttribute( position, b );
-				vC.fromBufferAttribute( position, c );
-
-				var intersection = checkIntersection( object, object.material, raycaster, ray, vA, vB, vC, intersectionPoint );
-
-				if ( intersection ) {
-
-					if ( uv ) {
-
-						uvA.fromBufferAttribute( uv, a );
-						uvB.fromBufferAttribute( uv, b );
-						uvC.fromBufferAttribute( uv, c );
-
-						intersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC );
-
-					}
-
-					intersection.face = new Face3( a, b, c, Triangle.normal( vA, vB, vC ) );
-					intersection.faceIndex = a;
-
-				}
-
-				return intersection;
-
-			}
-
-			return function raycast( raycaster, intersects ) {
-
-				var geometry = this.geometry;
-				var material = this.material;
-				var matrixWorld = this.matrixWorld;
-
-				if ( material === undefined ) return;
-
-				// Checking boundingSphere distance to ray
-
-				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere );
-				sphere.applyMatrix4( matrixWorld );
-
-				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
-
-				//
-
-				inverseMatrix.getInverse( matrixWorld );
-				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
-
-				// Check boundingBox before continuing
-
-				if ( geometry.boundingBox !== null ) {
-
-					if ( ray.intersectsBox( geometry.boundingBox ) === false ) return;
-
-				}
-
-				var intersection;
-
-				if ( geometry.isBufferGeometry ) {
-
-					var a, b, c;
-					var index = geometry.index;
-					var position = geometry.attributes.position;
-					var uv = geometry.attributes.uv;
-					var i, l;
-
-					if ( index !== null ) {
-
-						// indexed buffer geometry
-
-						for ( i = 0, l = index.count; i < l; i += 3 ) {
-
-							a = index.getX( i );
-							b = index.getX( i + 1 );
-							c = index.getX( i + 2 );
-
-							intersection = checkBufferGeometryIntersection( this, raycaster, ray, position, uv, a, b, c );
-
-							if ( intersection ) {
-
-								intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indices buffer semantics
-								intersects.push( intersection );
-
-							}
-
-						}
-
-					} else if ( position !== undefined ) {
-
-						// non-indexed buffer geometry
-
-						for ( i = 0, l = position.count; i < l; i += 3 ) {
-
-							a = i;
-							b = i + 1;
-							c = i + 2;
-
-							intersection = checkBufferGeometryIntersection( this, raycaster, ray, position, uv, a, b, c );
-
-							if ( intersection ) {
-
-								intersection.index = a; // triangle number in positions buffer semantics
-								intersects.push( intersection );
-
-							}
-
-						}
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var fvA, fvB, fvC;
-					var isMultiMaterial = Array.isArray( material );
-
-					var vertices = geometry.vertices;
-					var faces = geometry.faces;
-					var uvs;
-
-					var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
-					if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;
-
-					for ( var f = 0, fl = faces.length; f < fl; f ++ ) {
-
-						var face = faces[ f ];
-						var faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;
-
-						if ( faceMaterial === undefined ) continue;
-
-						fvA = vertices[ face.a ];
-						fvB = vertices[ face.b ];
-						fvC = vertices[ face.c ];
-
-						if ( faceMaterial.morphTargets === true ) {
-
-							var morphTargets = geometry.morphTargets;
-							var morphInfluences = this.morphTargetInfluences;
-
-							vA.set( 0, 0, 0 );
-							vB.set( 0, 0, 0 );
-							vC.set( 0, 0, 0 );
-
-							for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {
-
-								var influence = morphInfluences[ t ];
-
-								if ( influence === 0 ) continue;
-
-								var targets = morphTargets[ t ].vertices;
-
-								vA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );
-								vB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );
-								vC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );
-
-							}
-
-							vA.add( fvA );
-							vB.add( fvB );
-							vC.add( fvC );
-
-							fvA = vA;
-							fvB = vB;
-							fvC = vC;
-
-						}
-
-						intersection = checkIntersection( this, faceMaterial, raycaster, ray, fvA, fvB, fvC, intersectionPoint );
-
-						if ( intersection ) {
-
-							if ( uvs && uvs[ f ] ) {
-
-								var uvs_f = uvs[ f ];
-								uvA.copy( uvs_f[ 0 ] );
-								uvB.copy( uvs_f[ 1 ] );
-								uvC.copy( uvs_f[ 2 ] );
-
-								intersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );
-
-							}
-
-							intersection.face = face;
-							intersection.faceIndex = f;
-							intersects.push( intersection );
-
-						}
-
-					}
-
-				}
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLBackground( renderer, state, geometries, premultipliedAlpha ) {
-
-		var clearColor = new Color( 0x000000 );
-		var clearAlpha = 0;
-
-		var planeCamera, planeMesh;
-		var boxMesh;
-
-		function render( renderList, scene, camera, forceClear ) {
-
-			var background = scene.background;
-
-			if ( background === null ) {
-
-				setClear( clearColor, clearAlpha );
-
-			} else if ( background && background.isColor ) {
-
-				setClear( background, 1 );
-				forceClear = true;
-
-			}
-
-			if ( renderer.autoClear || forceClear ) {
-
-				renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );
-
-			}
-
-			if ( background && background.isCubeTexture ) {
-
-				if ( boxMesh === undefined ) {
-
-					boxMesh = new Mesh(
-						new BoxBufferGeometry( 1, 1, 1 ),
-						new ShaderMaterial( {
-							uniforms: ShaderLib.cube.uniforms,
-							vertexShader: ShaderLib.cube.vertexShader,
-							fragmentShader: ShaderLib.cube.fragmentShader,
-							side: BackSide,
-							depthTest: true,
-							depthWrite: false,
-							fog: false
-						} )
-					);
-
-					boxMesh.geometry.removeAttribute( 'normal' );
-					boxMesh.geometry.removeAttribute( 'uv' );
-
-					boxMesh.onBeforeRender = function ( renderer, scene, camera ) {
-
-						this.matrixWorld.copyPosition( camera.matrixWorld );
-
-					};
-
-					geometries.update( boxMesh.geometry );
-
-				}
-
-				boxMesh.material.uniforms.tCube.value = background;
-
-				renderList.push( boxMesh, boxMesh.geometry, boxMesh.material, 0, null );
-
-			} else if ( background && background.isTexture ) {
-
-				if ( planeCamera === undefined ) {
-
-					planeCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );
-
-					planeMesh = new Mesh(
-						new PlaneBufferGeometry( 2, 2 ),
-						new MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } )
-					);
-
-					geometries.update( planeMesh.geometry );
-
-				}
-
-				planeMesh.material.map = background;
-
-				// TODO Push this to renderList
-
-				renderer.renderBufferDirect( planeCamera, null, planeMesh.geometry, planeMesh.material, planeMesh, null );
-
-			}
-
-		}
-
-		function setClear( color, alpha ) {
-
-			state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );
-
-		}
-
-		return {
-
-			getClearColor: function () {
-
-				return clearColor;
-
-			},
-			setClearColor: function ( color, alpha ) {
-
-				clearColor.set( color );
-				clearAlpha = alpha !== undefined ? alpha : 1;
-				setClear( clearColor, clearAlpha );
-
-			},
-			getClearAlpha: function () {
-
-				return clearAlpha;
-
-			},
-			setClearAlpha: function ( alpha ) {
-
-				clearAlpha = alpha;
-				setClear( clearColor, clearAlpha );
-
-			},
-			render: render
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function painterSortStable( a, b ) {
-
-		if ( a.renderOrder !== b.renderOrder ) {
-
-			return a.renderOrder - b.renderOrder;
-
-		} else if ( a.program && b.program && a.program !== b.program ) {
-
-			return a.program.id - b.program.id;
-
-		} else if ( a.material.id !== b.material.id ) {
-
-			return a.material.id - b.material.id;
-
-		} else if ( a.z !== b.z ) {
-
-			return a.z - b.z;
-
-		} else {
-
-			return a.id - b.id;
-
-		}
-
-	}
-
-	function reversePainterSortStable( a, b ) {
-
-		if ( a.renderOrder !== b.renderOrder ) {
-
-			return a.renderOrder - b.renderOrder;
-
-		} if ( a.z !== b.z ) {
-
-			return b.z - a.z;
-
-		} else {
-
-			return a.id - b.id;
-
-		}
-
-	}
-
-	function WebGLRenderList() {
-
-		var renderItems = [];
-		var renderItemsIndex = 0;
-
-		var opaque = [];
-		var transparent = [];
-
-		function init() {
-
-			renderItemsIndex = 0;
-
-			opaque.length = 0;
-			transparent.length = 0;
-
-		}
-
-		function push( object, geometry, material, z, group ) {
-
-			var renderItem = renderItems[ renderItemsIndex ];
-
-			if ( renderItem === undefined ) {
-
-				renderItem = {
-					id: object.id,
-					object: object,
-					geometry: geometry,
-					material: material,
-					program: material.program,
-					renderOrder: object.renderOrder,
-					z: z,
-					group: group
-				};
-
-				renderItems[ renderItemsIndex ] = renderItem;
-
-			} else {
-
-				renderItem.id = object.id;
-				renderItem.object = object;
-				renderItem.geometry = geometry;
-				renderItem.material = material;
-				renderItem.program = material.program;
-				renderItem.renderOrder = object.renderOrder;
-				renderItem.z = z;
-				renderItem.group = group;
-
-			}
-
-			( material.transparent === true ? transparent : opaque ).push( renderItem );
-
-			renderItemsIndex ++;
-
-		}
-
-		function sort() {
-
-			if ( opaque.length > 1 ) opaque.sort( painterSortStable );
-			if ( transparent.length > 1 ) transparent.sort( reversePainterSortStable );
-
-		}
-
-		return {
-			opaque: opaque,
-			transparent: transparent,
-
-			init: init,
-			push: push,
-
-			sort: sort
-		};
-
-	}
-
-	function WebGLRenderLists() {
-
-		var lists = {};
-
-		function get( scene, camera ) {
-
-			var hash = scene.id + ',' + camera.id;
-			var list = lists[ hash ];
-
-			if ( list === undefined ) {
-
-				// console.log( 'THREE.WebGLRenderLists:', hash );
-
-				list = new WebGLRenderList();
-				lists[ hash ] = list;
-
-			}
-
-			return list;
-
-		}
-
-		function dispose() {
-
-			lists = {};
-
-		}
-
-		return {
-			get: get,
-			dispose: dispose
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function absNumericalSort( a, b ) {
-
-		return Math.abs( b[ 1 ] ) - Math.abs( a[ 1 ] );
-
-	}
-
-	function WebGLMorphtargets( gl ) {
-
-		var influencesList = {};
-		var morphInfluences = new Float32Array( 8 );
-
-		function update( object, geometry, material, program ) {
-
-			var objectInfluences = object.morphTargetInfluences;
-
-			var length = objectInfluences.length;
-
-			var influences = influencesList[ geometry.id ];
-
-			if ( influences === undefined ) {
-
-				// initialise list
-
-				influences = [];
-
-				for ( var i = 0; i < length; i ++ ) {
-
-					influences[ i ] = [ i, 0 ];
-
-				}
-
-				influencesList[ geometry.id ] = influences;
-
-			}
-
-			var morphTargets = material.morphTargets && geometry.morphAttributes.position;
-			var morphNormals = material.morphNormals && geometry.morphAttributes.normal;
-
-			// Remove current morphAttributes
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				var influence = influences[ i ];
-
-				if ( influence[ 1 ] !== 0 ) {
-
-					if ( morphTargets ) geometry.removeAttribute( 'morphTarget' + i );
-					if ( morphNormals ) geometry.removeAttribute( 'morphNormal' + i );
-
-				}
-
-			}
-
-			// Collect influences
-
-			for ( var i = 0; i < length; i ++ ) {
-
-				var influence = influences[ i ];
-
-				influence[ 0 ] = i;
-				influence[ 1 ] = objectInfluences[ i ];
-
-			}
-
-			influences.sort( absNumericalSort );
-
-			// Add morphAttributes
-
-			for ( var i = 0; i < 8; i ++ ) {
-
-				var influence = influences[ i ];
-
-				if ( influence ) {
-
-					var index = influence[ 0 ];
-					var value = influence[ 1 ];
-
-					if ( value ) {
-
-						if ( morphTargets ) geometry.addAttribute( 'morphTarget' + i, morphTargets[ index ] );
-						if ( morphNormals ) geometry.addAttribute( 'morphNormal' + i, morphNormals[ index ] );
-
-						morphInfluences[ i ] = value;
-						continue;
-
-					}
-
-				}
-
-				morphInfluences[ i ] = 0;
-
-			}
-
-			program.getUniforms().setValue( gl, 'morphTargetInfluences', morphInfluences );
-
-		}
-
-		return {
-
-			update: update
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLIndexedBufferRenderer( gl, extensions, infoRender ) {
-
-		var mode;
-
-		function setMode( value ) {
-
-			mode = value;
-
-		}
-
-		var type, bytesPerElement;
-
-		function setIndex( value ) {
-
-			type = value.type;
-			bytesPerElement = value.bytesPerElement;
-
-		}
-
-		function render( start, count ) {
-
-			gl.drawElements( mode, count, type, start * bytesPerElement );
-
-			infoRender.calls ++;
-			infoRender.vertices += count;
-
-			if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;
-			else if ( mode === gl.POINTS ) infoRender.points += count;
-
-		}
-
-		function renderInstances( geometry, start, count ) {
-
-			var extension = extensions.get( 'ANGLE_instanced_arrays' );
-
-			if ( extension === null ) {
-
-				console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
-				return;
-
-			}
-
-			extension.drawElementsInstancedANGLE( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );
-
-			infoRender.calls ++;
-			infoRender.vertices += count * geometry.maxInstancedCount;
-
-			if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;
-			else if ( mode === gl.POINTS ) infoRender.points += geometry.maxInstancedCount * count;
-
-		}
-
-		//
-
-		this.setMode = setMode;
-		this.setIndex = setIndex;
-		this.render = render;
-		this.renderInstances = renderInstances;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLBufferRenderer( gl, extensions, infoRender ) {
-
-		var mode;
-
-		function setMode( value ) {
-
-			mode = value;
-
-		}
-
-		function render( start, count ) {
-
-			gl.drawArrays( mode, start, count );
-
-			infoRender.calls ++;
-			infoRender.vertices += count;
-
-			if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;
-			else if ( mode === gl.POINTS ) infoRender.points += count;
-
-		}
-
-		function renderInstances( geometry, start, count ) {
-
-			var extension = extensions.get( 'ANGLE_instanced_arrays' );
-
-			if ( extension === null ) {
-
-				console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
-				return;
-
-			}
-
-			var position = geometry.attributes.position;
-
-			if ( position.isInterleavedBufferAttribute ) {
-
-				count = position.data.count;
-
-				extension.drawArraysInstancedANGLE( mode, 0, count, geometry.maxInstancedCount );
-
-			} else {
-
-				extension.drawArraysInstancedANGLE( mode, start, count, geometry.maxInstancedCount );
-
-			}
-
-			infoRender.calls ++;
-			infoRender.vertices += count * geometry.maxInstancedCount;
-
-			if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;
-			else if ( mode === gl.POINTS ) infoRender.points += geometry.maxInstancedCount * count;
-
-		}
-
-		//
-
-		this.setMode = setMode;
-		this.render = render;
-		this.renderInstances = renderInstances;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLGeometries( gl, attributes, infoMemory ) {
-
-		var geometries = {};
-		var wireframeAttributes = {};
-
-		function onGeometryDispose( event ) {
-
-			var geometry = event.target;
-			var buffergeometry = geometries[ geometry.id ];
-
-			if ( buffergeometry.index !== null ) {
-
-				attributes.remove( buffergeometry.index );
-
-			}
-
-			for ( var name in buffergeometry.attributes ) {
-
-				attributes.remove( buffergeometry.attributes[ name ] );
-
-			}
-
-			geometry.removeEventListener( 'dispose', onGeometryDispose );
-
-			delete geometries[ geometry.id ];
-
-			// TODO Remove duplicate code
-
-			var attribute = wireframeAttributes[ geometry.id ];
-
-			if ( attribute ) {
-
-				attributes.remove( attribute );
-				delete wireframeAttributes[ geometry.id ];
-
-			}
-
-			attribute = wireframeAttributes[ buffergeometry.id ];
-
-			if ( attribute ) {
-
-				attributes.remove( attribute );
-				delete wireframeAttributes[ buffergeometry.id ];
-
-			}
-
-			//
-
-			infoMemory.geometries --;
-
-		}
-
-		function get( object, geometry ) {
-
-			var buffergeometry = geometries[ geometry.id ];
-
-			if ( buffergeometry ) return buffergeometry;
-
-			geometry.addEventListener( 'dispose', onGeometryDispose );
-
-			if ( geometry.isBufferGeometry ) {
-
-				buffergeometry = geometry;
-
-			} else if ( geometry.isGeometry ) {
-
-				if ( geometry._bufferGeometry === undefined ) {
-
-					geometry._bufferGeometry = new BufferGeometry().setFromObject( object );
-
-				}
-
-				buffergeometry = geometry._bufferGeometry;
-
-			}
-
-			geometries[ geometry.id ] = buffergeometry;
-
-			infoMemory.geometries ++;
-
-			return buffergeometry;
-
-		}
-
-		function update( geometry ) {
-
-			var index = geometry.index;
-			var geometryAttributes = geometry.attributes;
-
-			if ( index !== null ) {
-
-				attributes.update( index, gl.ELEMENT_ARRAY_BUFFER );
-
-			}
-
-			for ( var name in geometryAttributes ) {
-
-				attributes.update( geometryAttributes[ name ], gl.ARRAY_BUFFER );
-
-			}
-
-			// morph targets
-
-			var morphAttributes = geometry.morphAttributes;
-
-			for ( var name in morphAttributes ) {
-
-				var array = morphAttributes[ name ];
-
-				for ( var i = 0, l = array.length; i < l; i ++ ) {
-
-					attributes.update( array[ i ], gl.ARRAY_BUFFER );
-
-				}
-
-			}
-
-		}
-
-		function getWireframeAttribute( geometry ) {
-
-			var attribute = wireframeAttributes[ geometry.id ];
-
-			if ( attribute ) return attribute;
-
-			var indices = [];
-
-			var geometryIndex = geometry.index;
-			var geometryAttributes = geometry.attributes;
-
-			// console.time( 'wireframe' );
-
-			if ( geometryIndex !== null ) {
-
-				var array = geometryIndex.array;
-
-				for ( var i = 0, l = array.length; i < l; i += 3 ) {
-
-					var a = array[ i + 0 ];
-					var b = array[ i + 1 ];
-					var c = array[ i + 2 ];
-
-					indices.push( a, b, b, c, c, a );
-
-				}
-
-			} else {
-
-				var array = geometryAttributes.position.array;
-
-				for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {
-
-					var a = i + 0;
-					var b = i + 1;
-					var c = i + 2;
-
-					indices.push( a, b, b, c, c, a );
-
-				}
-
-			}
-
-			// console.timeEnd( 'wireframe' );
-
-			attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );
-
-			attributes.update( attribute, gl.ELEMENT_ARRAY_BUFFER );
-
-			wireframeAttributes[ geometry.id ] = attribute;
-
-			return attribute;
-
-		}
-
-		return {
-
-			get: get,
-			update: update,
-
-			getWireframeAttribute: getWireframeAttribute
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLObjects( geometries, infoRender ) {
-
-		var updateList = {};
-
-		function update( object ) {
-
-			var frame = infoRender.frame;
-
-			var geometry = object.geometry;
-			var buffergeometry = geometries.get( object, geometry );
-
-			// Update once per frame
-
-			if ( updateList[ buffergeometry.id ] !== frame ) {
-
-				if ( geometry.isGeometry ) {
-
-					buffergeometry.updateFromObject( object );
-
-				}
-
-				geometries.update( buffergeometry );
-
-				updateList[ buffergeometry.id ] = frame;
-
-			}
-
-			return buffergeometry;
-
-		}
-
-		function dispose() {
-
-			updateList = {};
-
-		}
-
-		return {
-
-			update: update,
-			dispose: dispose
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function addLineNumbers( string ) {
-
-		var lines = string.split( '\n' );
-
-		for ( var i = 0; i < lines.length; i ++ ) {
-
-			lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];
-
-		}
-
-		return lines.join( '\n' );
-
-	}
-
-	function WebGLShader( gl, type, string ) {
-
-		var shader = gl.createShader( type );
-
-		gl.shaderSource( shader, string );
-		gl.compileShader( shader );
-
-		if ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {
-
-			console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' );
-
-		}
-
-		if ( gl.getShaderInfoLog( shader ) !== '' ) {
-
-			console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );
-
-		}
-
-		// --enable-privileged-webgl-extension
-		// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );
-
-		return shader;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var programIdCount = 0;
-
-	function getEncodingComponents( encoding ) {
-
-		switch ( encoding ) {
-
-			case LinearEncoding:
-				return [ 'Linear', '( value )' ];
-			case sRGBEncoding:
-				return [ 'sRGB', '( value )' ];
-			case RGBEEncoding:
-				return [ 'RGBE', '( value )' ];
-			case RGBM7Encoding:
-				return [ 'RGBM', '( value, 7.0 )' ];
-			case RGBM16Encoding:
-				return [ 'RGBM', '( value, 16.0 )' ];
-			case RGBDEncoding:
-				return [ 'RGBD', '( value, 256.0 )' ];
-			case GammaEncoding:
-				return [ 'Gamma', '( value, float( GAMMA_FACTOR ) )' ];
-			default:
-				throw new Error( 'unsupported encoding: ' + encoding );
-
-		}
-
-	}
-
-	function getTexelDecodingFunction( functionName, encoding ) {
-
-		var components = getEncodingComponents( encoding );
-		return 'vec4 ' + functionName + '( vec4 value ) { return ' + components[ 0 ] + 'ToLinear' + components[ 1 ] + '; }';
-
-	}
-
-	function getTexelEncodingFunction( functionName, encoding ) {
-
-		var components = getEncodingComponents( encoding );
-		return 'vec4 ' + functionName + '( vec4 value ) { return LinearTo' + components[ 0 ] + components[ 1 ] + '; }';
-
-	}
-
-	function getToneMappingFunction( functionName, toneMapping ) {
-
-		var toneMappingName;
-
-		switch ( toneMapping ) {
-
-			case LinearToneMapping:
-				toneMappingName = 'Linear';
-				break;
-
-			case ReinhardToneMapping:
-				toneMappingName = 'Reinhard';
-				break;
-
-			case Uncharted2ToneMapping:
-				toneMappingName = 'Uncharted2';
-				break;
-
-			case CineonToneMapping:
-				toneMappingName = 'OptimizedCineon';
-				break;
-
-			default:
-				throw new Error( 'unsupported toneMapping: ' + toneMapping );
-
-		}
-
-		return 'vec3 ' + functionName + '( vec3 color ) { return ' + toneMappingName + 'ToneMapping( color ); }';
-
-	}
-
-	function generateExtensions( extensions, parameters, rendererExtensions ) {
-
-		extensions = extensions || {};
-
-		var chunks = [
-			( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.normalMap || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',
-			( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',
-			( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',
-			( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''
-		];
-
-		return chunks.filter( filterEmptyLine ).join( '\n' );
-
-	}
-
-	function generateDefines( defines ) {
-
-		var chunks = [];
-
-		for ( var name in defines ) {
-
-			var value = defines[ name ];
-
-			if ( value === false ) continue;
-
-			chunks.push( '#define ' + name + ' ' + value );
-
-		}
-
-		return chunks.join( '\n' );
-
-	}
-
-	function fetchAttributeLocations( gl, program ) {
-
-		var attributes = {};
-
-		var n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );
-
-		for ( var i = 0; i < n; i ++ ) {
-
-			var info = gl.getActiveAttrib( program, i );
-			var name = info.name;
-
-			// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );
-
-			attributes[ name ] = gl.getAttribLocation( program, name );
-
-		}
-
-		return attributes;
-
-	}
-
-	function filterEmptyLine( string ) {
-
-		return string !== '';
-
-	}
-
-	function replaceLightNums( string, parameters ) {
-
-		return string
-			.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
-			.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
-			.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
-			.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
-			.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );
-
-	}
-
-	function replaceClippingPlaneNums( string, parameters ) {
-
-		return string
-			.replace( /NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes )
-			.replace( /UNION_CLIPPING_PLANES/g, ( parameters.numClippingPlanes - parameters.numClipIntersection ) );
-
-	}
-
-	function parseIncludes( string ) {
-
-		var pattern = /^[ \t]*#include +<([\w\d.]+)>/gm;
-
-		function replace( match, include ) {
-
-			var replace = ShaderChunk[ include ];
-
-			if ( replace === undefined ) {
-
-				throw new Error( 'Can not resolve #include <' + include + '>' );
-
-			}
-
-			return parseIncludes( replace );
-
-		}
-
-		return string.replace( pattern, replace );
-
-	}
-
-	function unrollLoops( string ) {
-
-		var pattern = /#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;
-
-		function replace( match, start, end, snippet ) {
-
-			var unroll = '';
-
-			for ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {
-
-				unroll += snippet.replace( /\[ i \]/g, '[ ' + i + ' ]' );
-
-			}
-
-			return unroll;
-
-		}
-
-		return string.replace( pattern, replace );
-
-	}
-
-	function WebGLProgram( renderer, extensions, code, material, shader, parameters ) {
-
-		var gl = renderer.context;
-
-		var defines = material.defines;
-
-		var vertexShader = shader.vertexShader;
-		var fragmentShader = shader.fragmentShader;
-
-		var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';
-
-		if ( parameters.shadowMapType === PCFShadowMap ) {
-
-			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';
-
-		} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {
-
-			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';
-
-		}
-
-		var envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
-		var envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
-		var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
-
-		if ( parameters.envMap ) {
-
-			switch ( material.envMap.mapping ) {
-
-				case CubeReflectionMapping:
-				case CubeRefractionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
-					break;
-
-				case CubeUVReflectionMapping:
-				case CubeUVRefractionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
-					break;
-
-				case EquirectangularReflectionMapping:
-				case EquirectangularRefractionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';
-					break;
-
-				case SphericalReflectionMapping:
-					envMapTypeDefine = 'ENVMAP_TYPE_SPHERE';
-					break;
-
-			}
-
-			switch ( material.envMap.mapping ) {
-
-				case CubeRefractionMapping:
-				case EquirectangularRefractionMapping:
-					envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
-					break;
-
-			}
-
-			switch ( material.combine ) {
-
-				case MultiplyOperation:
-					envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
-					break;
-
-				case MixOperation:
-					envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
-					break;
-
-				case AddOperation:
-					envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
-					break;
-
-			}
-
-		}
-
-		var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;
-
-		// console.log( 'building new program ' );
-
-		//
-
-		var customExtensions = generateExtensions( material.extensions, parameters, extensions );
-
-		var customDefines = generateDefines( defines );
-
-		//
-
-		var program = gl.createProgram();
-
-		var prefixVertex, prefixFragment;
-
-		if ( material.isRawShaderMaterial ) {
-
-			prefixVertex = [
-
-				customDefines
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-			if ( prefixVertex.length > 0 ) {
-
-				prefixVertex += '\n';
-
-			}
-
-			prefixFragment = [
-
-				customExtensions,
-				customDefines
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-			if ( prefixFragment.length > 0 ) {
-
-				prefixFragment += '\n';
-
-			}
-
-		} else {
-
-			prefixVertex = [
-
-				'precision ' + parameters.precision + ' float;',
-				'precision ' + parameters.precision + ' int;',
-
-				'#define SHADER_NAME ' + shader.name,
-
-				customDefines,
-
-				parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',
-
-				'#define GAMMA_FACTOR ' + gammaFactorDefine,
-
-				'#define MAX_BONES ' + parameters.maxBones,
-				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
-				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
-
-				parameters.map ? '#define USE_MAP' : '',
-				parameters.envMap ? '#define USE_ENVMAP' : '',
-				parameters.envMap ? '#define ' + envMapModeDefine : '',
-				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
-				parameters.aoMap ? '#define USE_AOMAP' : '',
-				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
-				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
-				parameters.normalMap ? '#define USE_NORMALMAP' : '',
-				parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',
-				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
-				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
-				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
-				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
-				parameters.vertexColors ? '#define USE_COLOR' : '',
-
-				parameters.flatShading ? '#define FLAT_SHADED' : '',
-
-				parameters.skinning ? '#define USE_SKINNING' : '',
-				parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',
-
-				parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
-				parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
-				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
-				parameters.flipSided ? '#define FLIP_SIDED' : '',
-
-				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
-				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
-
-				parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',
-
-				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
-				parameters.logarithmicDepthBuffer && extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
-
-				'uniform mat4 modelMatrix;',
-				'uniform mat4 modelViewMatrix;',
-				'uniform mat4 projectionMatrix;',
-				'uniform mat4 viewMatrix;',
-				'uniform mat3 normalMatrix;',
-				'uniform vec3 cameraPosition;',
-
-				'attribute vec3 position;',
-				'attribute vec3 normal;',
-				'attribute vec2 uv;',
-
-				'#ifdef USE_COLOR',
-
-				'	attribute vec3 color;',
-
-				'#endif',
-
-				'#ifdef USE_MORPHTARGETS',
-
-				'	attribute vec3 morphTarget0;',
-				'	attribute vec3 morphTarget1;',
-				'	attribute vec3 morphTarget2;',
-				'	attribute vec3 morphTarget3;',
-
-				'	#ifdef USE_MORPHNORMALS',
-
-				'		attribute vec3 morphNormal0;',
-				'		attribute vec3 morphNormal1;',
-				'		attribute vec3 morphNormal2;',
-				'		attribute vec3 morphNormal3;',
-
-				'	#else',
-
-				'		attribute vec3 morphTarget4;',
-				'		attribute vec3 morphTarget5;',
-				'		attribute vec3 morphTarget6;',
-				'		attribute vec3 morphTarget7;',
-
-				'	#endif',
-
-				'#endif',
-
-				'#ifdef USE_SKINNING',
-
-				'	attribute vec4 skinIndex;',
-				'	attribute vec4 skinWeight;',
-
-				'#endif',
-
-				'\n'
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-			prefixFragment = [
-
-				customExtensions,
-
-				'precision ' + parameters.precision + ' float;',
-				'precision ' + parameters.precision + ' int;',
-
-				'#define SHADER_NAME ' + shader.name,
-
-				customDefines,
-
-				parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest : '',
-
-				'#define GAMMA_FACTOR ' + gammaFactorDefine,
-
-				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
-				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',
-
-				parameters.map ? '#define USE_MAP' : '',
-				parameters.envMap ? '#define USE_ENVMAP' : '',
-				parameters.envMap ? '#define ' + envMapTypeDefine : '',
-				parameters.envMap ? '#define ' + envMapModeDefine : '',
-				parameters.envMap ? '#define ' + envMapBlendingDefine : '',
-				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
-				parameters.aoMap ? '#define USE_AOMAP' : '',
-				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
-				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
-				parameters.normalMap ? '#define USE_NORMALMAP' : '',
-				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
-				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
-				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
-				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
-				parameters.vertexColors ? '#define USE_COLOR' : '',
-
-				parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',
-
-				parameters.flatShading ? '#define FLAT_SHADED' : '',
-
-				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
-				parameters.flipSided ? '#define FLIP_SIDED' : '',
-
-				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
-				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',
-
-				parameters.premultipliedAlpha ? '#define PREMULTIPLIED_ALPHA' : '',
-
-				parameters.physicallyCorrectLights ? '#define PHYSICALLY_CORRECT_LIGHTS' : '',
-
-				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
-				parameters.logarithmicDepthBuffer && extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',
-
-				parameters.envMap && extensions.get( 'EXT_shader_texture_lod' ) ? '#define TEXTURE_LOD_EXT' : '',
-
-				'uniform mat4 viewMatrix;',
-				'uniform vec3 cameraPosition;',
-
-				( parameters.toneMapping !== NoToneMapping ) ? '#define TONE_MAPPING' : '',
-				( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below
-				( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( 'toneMapping', parameters.toneMapping ) : '',
-
-				parameters.dithering ? '#define DITHERING' : '',
-
-				( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below
-				parameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',
-				parameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',
-				parameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',
-				parameters.outputEncoding ? getTexelEncodingFunction( 'linearToOutputTexel', parameters.outputEncoding ) : '',
-
-				parameters.depthPacking ? '#define DEPTH_PACKING ' + material.depthPacking : '',
-
-				'\n'
-
-			].filter( filterEmptyLine ).join( '\n' );
-
-		}
-
-		vertexShader = parseIncludes( vertexShader );
-		vertexShader = replaceLightNums( vertexShader, parameters );
-		vertexShader = replaceClippingPlaneNums( vertexShader, parameters );
-
-		fragmentShader = parseIncludes( fragmentShader );
-		fragmentShader = replaceLightNums( fragmentShader, parameters );
-		fragmentShader = replaceClippingPlaneNums( fragmentShader, parameters );
-
-		vertexShader = unrollLoops( vertexShader );
-		fragmentShader = unrollLoops( fragmentShader );
-
-		var vertexGlsl = prefixVertex + vertexShader;
-		var fragmentGlsl = prefixFragment + fragmentShader;
-
-		// console.log( '*VERTEX*', vertexGlsl );
-		// console.log( '*FRAGMENT*', fragmentGlsl );
-
-		var glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );
-		var glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );
-
-		gl.attachShader( program, glVertexShader );
-		gl.attachShader( program, glFragmentShader );
-
-		// Force a particular attribute to index 0.
-
-		if ( material.index0AttributeName !== undefined ) {
-
-			gl.bindAttribLocation( program, 0, material.index0AttributeName );
-
-		} else if ( parameters.morphTargets === true ) {
-
-			// programs with morphTargets displace position out of attribute 0
-			gl.bindAttribLocation( program, 0, 'position' );
-
-		}
-
-		gl.linkProgram( program );
-
-		var programLog = gl.getProgramInfoLog( program ).trim();
-		var vertexLog = gl.getShaderInfoLog( glVertexShader ).trim();
-		var fragmentLog = gl.getShaderInfoLog( glFragmentShader ).trim();
-
-		var runnable = true;
-		var haveDiagnostics = true;
-
-		// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );
-		// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );
-
-		if ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {
-
-			runnable = false;
-
-			console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );
-
-		} else if ( programLog !== '' ) {
-
-			console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );
-
-		} else if ( vertexLog === '' || fragmentLog === '' ) {
-
-			haveDiagnostics = false;
-
-		}
-
-		if ( haveDiagnostics ) {
-
-			this.diagnostics = {
-
-				runnable: runnable,
-				material: material,
-
-				programLog: programLog,
-
-				vertexShader: {
-
-					log: vertexLog,
-					prefix: prefixVertex
-
-				},
-
-				fragmentShader: {
-
-					log: fragmentLog,
-					prefix: prefixFragment
-
-				}
-
-			};
-
-		}
-
-		// clean up
-
-		gl.deleteShader( glVertexShader );
-		gl.deleteShader( glFragmentShader );
-
-		// set up caching for uniform locations
-
-		var cachedUniforms;
-
-		this.getUniforms = function () {
-
-			if ( cachedUniforms === undefined ) {
-
-				cachedUniforms = new WebGLUniforms( gl, program, renderer );
-
-			}
-
-			return cachedUniforms;
-
-		};
-
-		// set up caching for attribute locations
-
-		var cachedAttributes;
-
-		this.getAttributes = function () {
-
-			if ( cachedAttributes === undefined ) {
-
-				cachedAttributes = fetchAttributeLocations( gl, program );
-
-			}
-
-			return cachedAttributes;
-
-		};
-
-		// free resource
-
-		this.destroy = function () {
-
-			gl.deleteProgram( program );
-			this.program = undefined;
-
-		};
-
-		// DEPRECATED
-
-		Object.defineProperties( this, {
-
-			uniforms: {
-				get: function () {
-
-					console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );
-					return this.getUniforms();
-
-				}
-			},
-
-			attributes: {
-				get: function () {
-
-					console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );
-					return this.getAttributes();
-
-				}
-			}
-
-		} );
-
-
-		//
-
-		this.id = programIdCount ++;
-		this.code = code;
-		this.usedTimes = 1;
-		this.program = program;
-		this.vertexShader = glVertexShader;
-		this.fragmentShader = glFragmentShader;
-
-		return this;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLPrograms( renderer, extensions, capabilities ) {
-
-		var programs = [];
-
-		var shaderIDs = {
-			MeshDepthMaterial: 'depth',
-			MeshDistanceMaterial: 'distanceRGBA',
-			MeshNormalMaterial: 'normal',
-			MeshBasicMaterial: 'basic',
-			MeshLambertMaterial: 'lambert',
-			MeshPhongMaterial: 'phong',
-			MeshToonMaterial: 'phong',
-			MeshStandardMaterial: 'physical',
-			MeshPhysicalMaterial: 'physical',
-			LineBasicMaterial: 'basic',
-			LineDashedMaterial: 'dashed',
-			PointsMaterial: 'points',
-			ShadowMaterial: 'shadow'
-		};
-
-		var parameterNames = [
-			"precision", "supportsVertexTextures", "map", "mapEncoding", "envMap", "envMapMode", "envMapEncoding",
-			"lightMap", "aoMap", "emissiveMap", "emissiveMapEncoding", "bumpMap", "normalMap", "displacementMap", "specularMap",
-			"roughnessMap", "metalnessMap", "gradientMap",
-			"alphaMap", "combine", "vertexColors", "fog", "useFog", "fogExp",
-			"flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning",
-			"maxBones", "useVertexTexture", "morphTargets", "morphNormals",
-			"maxMorphTargets", "maxMorphNormals", "premultipliedAlpha",
-			"numDirLights", "numPointLights", "numSpotLights", "numHemiLights", "numRectAreaLights",
-			"shadowMapEnabled", "shadowMapType", "toneMapping", 'physicallyCorrectLights',
-			"alphaTest", "doubleSided", "flipSided", "numClippingPlanes", "numClipIntersection", "depthPacking", "dithering"
-		];
-
-
-		function allocateBones( object ) {
-
-			var skeleton = object.skeleton;
-			var bones = skeleton.bones;
-
-			if ( capabilities.floatVertexTextures ) {
-
-				return 1024;
-
-			} else {
-
-				// default for when object is not specified
-				// ( for example when prebuilding shader to be used with multiple objects )
-				//
-				//  - leave some extra space for other uniforms
-				//  - limit here is ANGLE's 254 max uniform vectors
-				//    (up to 54 should be safe)
-
-				var nVertexUniforms = capabilities.maxVertexUniforms;
-				var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );
-
-				var maxBones = Math.min( nVertexMatrices, bones.length );
-
-				if ( maxBones < bones.length ) {
-
-					console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );
-					return 0;
-
-				}
-
-				return maxBones;
-
-			}
-
-		}
-
-		function getTextureEncodingFromMap( map, gammaOverrideLinear ) {
-
-			var encoding;
-
-			if ( ! map ) {
-
-				encoding = LinearEncoding;
-
-			} else if ( map.isTexture ) {
-
-				encoding = map.encoding;
-
-			} else if ( map.isWebGLRenderTarget ) {
-
-				console.warn( "THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead." );
-				encoding = map.texture.encoding;
-
-			}
-
-			// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.
-			if ( encoding === LinearEncoding && gammaOverrideLinear ) {
-
-				encoding = GammaEncoding;
-
-			}
-
-			return encoding;
-
-		}
-
-		this.getParameters = function ( material, lights, shadows, fog, nClipPlanes, nClipIntersection, object ) {
-
-			var shaderID = shaderIDs[ material.type ];
-
-			// heuristics to create shader parameters according to lights in the scene
-			// (not to blow over maxLights budget)
-
-			var maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;
-			var precision = capabilities.precision;
-
-			if ( material.precision !== null ) {
-
-				precision = capabilities.getMaxPrecision( material.precision );
-
-				if ( precision !== material.precision ) {
-
-					console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );
-
-				}
-
-			}
-
-			var currentRenderTarget = renderer.getRenderTarget();
-
-			var parameters = {
-
-				shaderID: shaderID,
-
-				precision: precision,
-				supportsVertexTextures: capabilities.vertexTextures,
-				outputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),
-				map: !! material.map,
-				mapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),
-				envMap: !! material.envMap,
-				envMapMode: material.envMap && material.envMap.mapping,
-				envMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),
-				envMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),
-				lightMap: !! material.lightMap,
-				aoMap: !! material.aoMap,
-				emissiveMap: !! material.emissiveMap,
-				emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),
-				bumpMap: !! material.bumpMap,
-				normalMap: !! material.normalMap,
-				displacementMap: !! material.displacementMap,
-				roughnessMap: !! material.roughnessMap,
-				metalnessMap: !! material.metalnessMap,
-				specularMap: !! material.specularMap,
-				alphaMap: !! material.alphaMap,
-
-				gradientMap: !! material.gradientMap,
-
-				combine: material.combine,
-
-				vertexColors: material.vertexColors,
-
-				fog: !! fog,
-				useFog: material.fog,
-				fogExp: ( fog && fog.isFogExp2 ),
-
-				flatShading: material.flatShading,
-
-				sizeAttenuation: material.sizeAttenuation,
-				logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,
-
-				skinning: material.skinning && maxBones > 0,
-				maxBones: maxBones,
-				useVertexTexture: capabilities.floatVertexTextures,
-
-				morphTargets: material.morphTargets,
-				morphNormals: material.morphNormals,
-				maxMorphTargets: renderer.maxMorphTargets,
-				maxMorphNormals: renderer.maxMorphNormals,
-
-				numDirLights: lights.directional.length,
-				numPointLights: lights.point.length,
-				numSpotLights: lights.spot.length,
-				numRectAreaLights: lights.rectArea.length,
-				numHemiLights: lights.hemi.length,
-
-				numClippingPlanes: nClipPlanes,
-				numClipIntersection: nClipIntersection,
-
-				dithering: material.dithering,
-
-				shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && shadows.length > 0,
-				shadowMapType: renderer.shadowMap.type,
-
-				toneMapping: renderer.toneMapping,
-				physicallyCorrectLights: renderer.physicallyCorrectLights,
-
-				premultipliedAlpha: material.premultipliedAlpha,
-
-				alphaTest: material.alphaTest,
-				doubleSided: material.side === DoubleSide,
-				flipSided: material.side === BackSide,
-
-				depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false
-
-			};
-
-			return parameters;
-
-		};
-
-		this.getProgramCode = function ( material, parameters ) {
-
-			var array = [];
-
-			if ( parameters.shaderID ) {
-
-				array.push( parameters.shaderID );
-
-			} else {
-
-				array.push( material.fragmentShader );
-				array.push( material.vertexShader );
-
-			}
-
-			if ( material.defines !== undefined ) {
-
-				for ( var name in material.defines ) {
-
-					array.push( name );
-					array.push( material.defines[ name ] );
-
-				}
-
-			}
-
-			for ( var i = 0; i < parameterNames.length; i ++ ) {
-
-				array.push( parameters[ parameterNames[ i ] ] );
-
-			}
-
-			array.push( material.onBeforeCompile.toString() );
-
-			array.push( renderer.gammaOutput );
-
-			return array.join();
-
-		};
-
-		this.acquireProgram = function ( material, shader, parameters, code ) {
-
-			var program;
-
-			// Check if code has been already compiled
-			for ( var p = 0, pl = programs.length; p < pl; p ++ ) {
-
-				var programInfo = programs[ p ];
-
-				if ( programInfo.code === code ) {
-
-					program = programInfo;
-					++ program.usedTimes;
-
-					break;
-
-				}
-
-			}
-
-			if ( program === undefined ) {
-
-				program = new WebGLProgram( renderer, extensions, code, material, shader, parameters );
-				programs.push( program );
-
-			}
-
-			return program;
-
-		};
-
-		this.releaseProgram = function ( program ) {
-
-			if ( -- program.usedTimes === 0 ) {
-
-				// Remove from unordered set
-				var i = programs.indexOf( program );
-				programs[ i ] = programs[ programs.length - 1 ];
-				programs.pop();
-
-				// Free WebGL resources
-				program.destroy();
-
-			}
-
-		};
-
-		// Exposed for resource monitoring & error feedback via renderer.info:
-		this.programs = programs;
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLTextures( _gl, extensions, state, properties, capabilities, utils, infoMemory, infoRender ) {
-
-		var _isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && _gl instanceof WebGL2RenderingContext );
-		var _videoTextures = {};
-		var _canvas;
-
-		//
-
-		function clampToMaxSize( image, maxSize ) {
-
-			if ( image.width > maxSize || image.height > maxSize ) {
-
-				// Warning: Scaling through the canvas will only work with images that use
-				// premultiplied alpha.
-
-				var scale = maxSize / Math.max( image.width, image.height );
-
-				var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
-				canvas.width = Math.floor( image.width * scale );
-				canvas.height = Math.floor( image.height * scale );
-
-				var context = canvas.getContext( '2d' );
-				context.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );
-
-				console.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );
-
-				return canvas;
-
-			}
-
-			return image;
-
-		}
-
-		function isPowerOfTwo( image ) {
-
-			return _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );
-
-		}
-
-		function makePowerOfTwo( image ) {
-
-			if ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement || image instanceof ImageBitmap ) {
-
-				if ( _canvas === undefined ) _canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
-
-				_canvas.width = _Math.floorPowerOfTwo( image.width );
-				_canvas.height = _Math.floorPowerOfTwo( image.height );
-
-				var context = _canvas.getContext( '2d' );
-				context.drawImage( image, 0, 0, _canvas.width, _canvas.height );
-
-				console.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + _canvas.width + 'x' + _canvas.height, image );
-
-				return _canvas;
-
-			}
-
-			return image;
-
-		}
-
-		function textureNeedsPowerOfTwo( texture ) {
-
-			return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
-				( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );
-
-		}
-
-		function textureNeedsGenerateMipmaps( texture, isPowerOfTwo ) {
-
-			return texture.generateMipmaps && isPowerOfTwo &&
-				texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
-
-		}
-
-		// Fallback filters for non-power-of-2 textures
-
-		function filterFallback( f ) {
-
-			if ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {
-
-				return _gl.NEAREST;
-
-			}
-
-			return _gl.LINEAR;
-
-		}
-
-		//
-
-		function onTextureDispose( event ) {
-
-			var texture = event.target;
-
-			texture.removeEventListener( 'dispose', onTextureDispose );
-
-			deallocateTexture( texture );
-
-			if ( texture.isVideoTexture ) {
-
-				delete _videoTextures[ texture.id ];
-
-			}
-
-			infoMemory.textures --;
-
-		}
-
-		function onRenderTargetDispose( event ) {
-
-			var renderTarget = event.target;
-
-			renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );
-
-			deallocateRenderTarget( renderTarget );
-
-			infoMemory.textures --;
-
-		}
-
-		//
-
-		function deallocateTexture( texture ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( texture.image && textureProperties.__image__webglTextureCube ) {
-
-				// cube texture
-
-				_gl.deleteTexture( textureProperties.__image__webglTextureCube );
-
-			} else {
-
-				// 2D texture
-
-				if ( textureProperties.__webglInit === undefined ) return;
-
-				_gl.deleteTexture( textureProperties.__webglTexture );
-
-			}
-
-			// remove all webgl properties
-			properties.remove( texture );
-
-		}
-
-		function deallocateRenderTarget( renderTarget ) {
-
-			var renderTargetProperties = properties.get( renderTarget );
-			var textureProperties = properties.get( renderTarget.texture );
-
-			if ( ! renderTarget ) return;
-
-			if ( textureProperties.__webglTexture !== undefined ) {
-
-				_gl.deleteTexture( textureProperties.__webglTexture );
-
-			}
-
-			if ( renderTarget.depthTexture ) {
-
-				renderTarget.depthTexture.dispose();
-
-			}
-
-			if ( renderTarget.isWebGLRenderTargetCube ) {
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
-					if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );
-
-				}
-
-			} else {
-
-				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
-				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );
-
-			}
-
-			properties.remove( renderTarget.texture );
-			properties.remove( renderTarget );
-
-		}
-
-		//
-
-
-
-		function setTexture2D( texture, slot ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( texture.isVideoTexture ) updateVideoTexture( texture );
-
-			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
-
-				var image = texture.image;
-
-				if ( image === undefined ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined', texture );
-
-				} else if ( image.complete === false ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete', texture );
-
-				} else {
-
-					uploadTexture( textureProperties, texture, slot );
-					return;
-
-				}
-
-			}
-
-			state.activeTexture( _gl.TEXTURE0 + slot );
-			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
-
-		}
-
-		function setTextureCube( texture, slot ) {
-
-			var textureProperties = properties.get( texture );
-
-			if ( texture.image.length === 6 ) {
-
-				if ( texture.version > 0 && textureProperties.__version !== texture.version ) {
-
-					if ( ! textureProperties.__image__webglTextureCube ) {
-
-						texture.addEventListener( 'dispose', onTextureDispose );
-
-						textureProperties.__image__webglTextureCube = _gl.createTexture();
-
-						infoMemory.textures ++;
-
-					}
-
-					state.activeTexture( _gl.TEXTURE0 + slot );
-					state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );
-
-					_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
-
-					var isCompressed = ( texture && texture.isCompressedTexture );
-					var isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );
-
-					var cubeImage = [];
-
-					for ( var i = 0; i < 6; i ++ ) {
-
-						if ( ! isCompressed && ! isDataTexture ) {
-
-							cubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );
-
-						} else {
-
-							cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];
-
-						}
-
-					}
-
-					var image = cubeImage[ 0 ],
-						isPowerOfTwoImage = isPowerOfTwo( image ),
-						glFormat = utils.convert( texture.format ),
-						glType = utils.convert( texture.type );
-
-					setTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage );
-
-					for ( var i = 0; i < 6; i ++ ) {
-
-						if ( ! isCompressed ) {
-
-							if ( isDataTexture ) {
-
-								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );
-
-							} else {
-
-								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, glFormat, glType, cubeImage[ i ] );
-
-							}
-
-						} else {
-
-							var mipmap, mipmaps = cubeImage[ i ].mipmaps;
-
-							for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {
-
-								mipmap = mipmaps[ j ];
-
-								if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
-
-									if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
-
-										state.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );
-
-									} else {
-
-										console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()' );
-
-									}
-
-								} else {
-
-									state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
-
-								}
-
-							}
-
-						}
-
-					}
-
-					if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {
-
-						_gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );
-
-					}
-
-					textureProperties.__version = texture.version;
-
-					if ( texture.onUpdate ) texture.onUpdate( texture );
-
-				} else {
-
-					state.activeTexture( _gl.TEXTURE0 + slot );
-					state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );
-
-				}
-
-			}
-
-		}
-
-		function setTextureCubeDynamic( texture, slot ) {
-
-			state.activeTexture( _gl.TEXTURE0 + slot );
-			state.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );
-
-		}
-
-		function setTextureParameters( textureType, texture, isPowerOfTwoImage ) {
-
-			var extension;
-
-			if ( isPowerOfTwoImage ) {
-
-				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, utils.convert( texture.wrapS ) );
-				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, utils.convert( texture.wrapT ) );
-
-				_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, utils.convert( texture.magFilter ) );
-				_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, utils.convert( texture.minFilter ) );
-
-			} else {
-
-				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );
-				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );
-
-				if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.', texture );
-
-				}
-
-				_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );
-				_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );
-
-				if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {
-
-					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.', texture );
-
-				}
-
-			}
-
-			extension = extensions.get( 'EXT_texture_filter_anisotropic' );
-
-			if ( extension ) {
-
-				if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;
-				if ( texture.type === HalfFloatType && extensions.get( 'OES_texture_half_float_linear' ) === null ) return;
-
-				if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {
-
-					_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
-					properties.get( texture ).__currentAnisotropy = texture.anisotropy;
-
-				}
-
-			}
-
-		}
-
-		function uploadTexture( textureProperties, texture, slot ) {
-
-			if ( textureProperties.__webglInit === undefined ) {
-
-				textureProperties.__webglInit = true;
-
-				texture.addEventListener( 'dispose', onTextureDispose );
-
-				textureProperties.__webglTexture = _gl.createTexture();
-
-				infoMemory.textures ++;
-
-			}
-
-			state.activeTexture( _gl.TEXTURE0 + slot );
-			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
-
-			_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
-			_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
-			_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );
-
-			var image = clampToMaxSize( texture.image, capabilities.maxTextureSize );
-
-			if ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) {
-
-				image = makePowerOfTwo( image );
-
-			}
-
-			var isPowerOfTwoImage = isPowerOfTwo( image ),
-				glFormat = utils.convert( texture.format ),
-				glType = utils.convert( texture.type );
-
-			setTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage );
-
-			var mipmap, mipmaps = texture.mipmaps;
-
-			if ( texture.isDepthTexture ) {
-
-				// populate depth texture with dummy data
-
-				var internalFormat = _gl.DEPTH_COMPONENT;
-
-				if ( texture.type === FloatType ) {
-
-					if ( ! _isWebGL2 ) throw new Error( 'Float Depth Texture only supported in WebGL2.0' );
-					internalFormat = _gl.DEPTH_COMPONENT32F;
-
-				} else if ( _isWebGL2 ) {
-
-					// WebGL 2.0 requires signed internalformat for glTexImage2D
-					internalFormat = _gl.DEPTH_COMPONENT16;
-
-				}
-
-				if ( texture.format === DepthFormat && internalFormat === _gl.DEPTH_COMPONENT ) {
-
-					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
-					// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
-					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-					if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {
-
-						console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );
-
-						texture.type = UnsignedShortType;
-						glType = utils.convert( texture.type );
-
-					}
-
-				}
-
-				// Depth stencil textures need the DEPTH_STENCIL internal format
-				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-				if ( texture.format === DepthStencilFormat ) {
-
-					internalFormat = _gl.DEPTH_STENCIL;
-
-					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
-					// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
-					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
-					if ( texture.type !== UnsignedInt248Type ) {
-
-						console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );
-
-						texture.type = UnsignedInt248Type;
-						glType = utils.convert( texture.type );
-
-					}
-
-				}
-
-				state.texImage2D( _gl.TEXTURE_2D, 0, internalFormat, image.width, image.height, 0, glFormat, glType, null );
-
-			} else if ( texture.isDataTexture ) {
-
-				// use manually created mipmaps if available
-				// if there are no manual mipmaps
-				// set 0 level mipmap and then use GL to generate other mipmap levels
-
-				if ( mipmaps.length > 0 && isPowerOfTwoImage ) {
-
-					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
-
-						mipmap = mipmaps[ i ];
-						state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
-
-					}
-
-					texture.generateMipmaps = false;
-
-				} else {
-
-					state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, image.width, image.height, 0, glFormat, glType, image.data );
-
-				}
-
-			} else if ( texture.isCompressedTexture ) {
-
-				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
-
-					mipmap = mipmaps[ i ];
-
-					if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {
-
-						if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {
-
-							state.compressedTexImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );
-
-						} else {
-
-							console.warn( 'THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()' );
-
-						}
-
-					} else {
-
-						state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );
-
-					}
-
-				}
-
-			} else {
-
-				// regular Texture (image, video, canvas)
-
-				// use manually created mipmaps if available
-				// if there are no manual mipmaps
-				// set 0 level mipmap and then use GL to generate other mipmap levels
-
-				if ( mipmaps.length > 0 && isPowerOfTwoImage ) {
-
-					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {
-
-						mipmap = mipmaps[ i ];
-						state.texImage2D( _gl.TEXTURE_2D, i, glFormat, glFormat, glType, mipmap );
-
-					}
-
-					texture.generateMipmaps = false;
-
-				} else {
-
-					state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, glFormat, glType, image );
-
-				}
-
-			}
-
-			if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) _gl.generateMipmap( _gl.TEXTURE_2D );
-
-			textureProperties.__version = texture.version;
-
-			if ( texture.onUpdate ) texture.onUpdate( texture );
-
-		}
-
-		// Render targets
-
-		// Setup storage for target texture and bind it to correct framebuffer
-		function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {
-
-			var glFormat = utils.convert( renderTarget.texture.format );
-			var glType = utils.convert( renderTarget.texture.type );
-			state.texImage2D( textureTarget, 0, glFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );
-			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
-			_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );
-			_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );
-
-		}
-
-		// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
-		function setupRenderBufferStorage( renderbuffer, renderTarget ) {
-
-			_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );
-
-			if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {
-
-				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );
-				_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );
-
-			} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {
-
-				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );
-				_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );
-
-			} else {
-
-				// FIXME: We don't support !depth !stencil
-				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );
-
-			}
-
-			_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );
-
-		}
-
-		// Setup resources for a Depth Texture for a FBO (needs an extension)
-		function setupDepthTexture( framebuffer, renderTarget ) {
-
-			var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );
-			if ( isCube ) throw new Error( 'Depth Texture with cube render targets is not supported' );
-
-			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
-
-			if ( ! ( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {
-
-				throw new Error( 'renderTarget.depthTexture must be an instance of THREE.DepthTexture' );
-
-			}
-
-			// upload an empty depth texture with framebuffer size
-			if ( ! properties.get( renderTarget.depthTexture ).__webglTexture ||
-					renderTarget.depthTexture.image.width !== renderTarget.width ||
-					renderTarget.depthTexture.image.height !== renderTarget.height ) {
-
-				renderTarget.depthTexture.image.width = renderTarget.width;
-				renderTarget.depthTexture.image.height = renderTarget.height;
-				renderTarget.depthTexture.needsUpdate = true;
-
-			}
-
-			setTexture2D( renderTarget.depthTexture, 0 );
-
-			var webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;
-
-			if ( renderTarget.depthTexture.format === DepthFormat ) {
-
-				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );
-
-			} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {
-
-				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );
-
-			} else {
-
-				throw new Error( 'Unknown depthTexture format' );
-
-			}
-
-		}
-
-		// Setup GL resources for a non-texture depth buffer
-		function setupDepthRenderbuffer( renderTarget ) {
-
-			var renderTargetProperties = properties.get( renderTarget );
-
-			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
-
-			if ( renderTarget.depthTexture ) {
-
-				if ( isCube ) throw new Error( 'target.depthTexture not supported in Cube render targets' );
-
-				setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );
-
-			} else {
-
-				if ( isCube ) {
-
-					renderTargetProperties.__webglDepthbuffer = [];
-
-					for ( var i = 0; i < 6; i ++ ) {
-
-						_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );
-						renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
-						setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );
-
-					}
-
-				} else {
-
-					_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );
-					renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
-					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );
-
-				}
-
-			}
-
-			_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );
-
-		}
-
-		// Set up GL resources for the render target
-		function setupRenderTarget( renderTarget ) {
-
-			var renderTargetProperties = properties.get( renderTarget );
-			var textureProperties = properties.get( renderTarget.texture );
-
-			renderTarget.addEventListener( 'dispose', onRenderTargetDispose );
-
-			textureProperties.__webglTexture = _gl.createTexture();
-
-			infoMemory.textures ++;
-
-			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
-			var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );
-
-			// Setup framebuffer
-
-			if ( isCube ) {
-
-				renderTargetProperties.__webglFramebuffer = [];
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();
-
-				}
-
-			} else {
-
-				renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();
-
-			}
-
-			// Setup color buffer
-
-			if ( isCube ) {
-
-				state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );
-				setTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );
-
-				for ( var i = 0; i < 6; i ++ ) {
-
-					setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );
-
-				}
-
-				if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) _gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );
-				state.bindTexture( _gl.TEXTURE_CUBE_MAP, null );
-
-			} else {
-
-				state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
-				setTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );
-				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );
-
-				if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) _gl.generateMipmap( _gl.TEXTURE_2D );
-				state.bindTexture( _gl.TEXTURE_2D, null );
-
-			}
-
-			// Setup depth and stencil buffers
-
-			if ( renderTarget.depthBuffer ) {
-
-				setupDepthRenderbuffer( renderTarget );
-
-			}
-
-		}
-
-		function updateRenderTargetMipmap( renderTarget ) {
-
-			var texture = renderTarget.texture;
-			var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );
-
-			if ( textureNeedsGenerateMipmaps( texture, isTargetPowerOfTwo ) ) {
-
-				var target = renderTarget.isWebGLRenderTargetCube ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;
-				var webglTexture = properties.get( texture ).__webglTexture;
-
-				state.bindTexture( target, webglTexture );
-				_gl.generateMipmap( target );
-				state.bindTexture( target, null );
-
-			}
-
-		}
-
-		function updateVideoTexture( texture ) {
-
-			var id = texture.id;
-			var frame = infoRender.frame;
-
-			// Check the last frame we updated the VideoTexture
-
-			if ( _videoTextures[ id ] !== frame ) {
-
-				_videoTextures[ id ] = frame;
-				texture.update();
-
-			}
-
-		}
-
-		this.setTexture2D = setTexture2D;
-		this.setTextureCube = setTextureCube;
-		this.setTextureCubeDynamic = setTextureCubeDynamic;
-		this.setupRenderTarget = setupRenderTarget;
-		this.updateRenderTargetMipmap = updateRenderTargetMipmap;
-
-	}
-
-	/**
-	 * @author fordacious / fordacious.github.io
-	 */
-
-	function WebGLProperties() {
-
-		var properties = {};
-
-		function get( object ) {
-
-			var uuid = object.uuid;
-			var map = properties[ uuid ];
-
-			if ( map === undefined ) {
-
-				map = {};
-				properties[ uuid ] = map;
-
-			}
-
-			return map;
-
-		}
-
-		function remove( object ) {
-
-			delete properties[ object.uuid ];
-
-		}
-
-		function update( object, key, value ) {
-
-			var uuid = object.uuid;
-			var map = properties[ uuid ];
-
-			map[ key ] = value;
-
-		}
-
-		function dispose() {
-
-			properties = {};
-
-		}
-
-		return {
-			get: get,
-			remove: remove,
-			update: update,
-			dispose: dispose
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLState( gl, extensions, utils ) {
-
-		function ColorBuffer() {
-
-			var locked = false;
-
-			var color = new Vector4();
-			var currentColorMask = null;
-			var currentColorClear = new Vector4( 0, 0, 0, 0 );
-
-			return {
-
-				setMask: function ( colorMask ) {
-
-					if ( currentColorMask !== colorMask && ! locked ) {
-
-						gl.colorMask( colorMask, colorMask, colorMask, colorMask );
-						currentColorMask = colorMask;
-
-					}
-
-				},
-
-				setLocked: function ( lock ) {
-
-					locked = lock;
-
-				},
-
-				setClear: function ( r, g, b, a, premultipliedAlpha ) {
-
-					if ( premultipliedAlpha === true ) {
-
-						r *= a; g *= a; b *= a;
-
-					}
-
-					color.set( r, g, b, a );
-
-					if ( currentColorClear.equals( color ) === false ) {
-
-						gl.clearColor( r, g, b, a );
-						currentColorClear.copy( color );
-
-					}
-
-				},
-
-				reset: function () {
-
-					locked = false;
-
-					currentColorMask = null;
-					currentColorClear.set( - 1, 0, 0, 0 ); // set to invalid state
-
-				}
-
-			};
-
-		}
-
-		function DepthBuffer() {
-
-			var locked = false;
-
-			var currentDepthMask = null;
-			var currentDepthFunc = null;
-			var currentDepthClear = null;
-
-			return {
-
-				setTest: function ( depthTest ) {
-
-					if ( depthTest ) {
-
-						enable( gl.DEPTH_TEST );
-
-					} else {
-
-						disable( gl.DEPTH_TEST );
-
-					}
-
-				},
-
-				setMask: function ( depthMask ) {
-
-					if ( currentDepthMask !== depthMask && ! locked ) {
-
-						gl.depthMask( depthMask );
-						currentDepthMask = depthMask;
-
-					}
-
-				},
-
-				setFunc: function ( depthFunc ) {
-
-					if ( currentDepthFunc !== depthFunc ) {
-
-						if ( depthFunc ) {
-
-							switch ( depthFunc ) {
-
-								case NeverDepth:
-
-									gl.depthFunc( gl.NEVER );
-									break;
-
-								case AlwaysDepth:
-
-									gl.depthFunc( gl.ALWAYS );
-									break;
-
-								case LessDepth:
-
-									gl.depthFunc( gl.LESS );
-									break;
-
-								case LessEqualDepth:
-
-									gl.depthFunc( gl.LEQUAL );
-									break;
-
-								case EqualDepth:
-
-									gl.depthFunc( gl.EQUAL );
-									break;
-
-								case GreaterEqualDepth:
-
-									gl.depthFunc( gl.GEQUAL );
-									break;
-
-								case GreaterDepth:
-
-									gl.depthFunc( gl.GREATER );
-									break;
-
-								case NotEqualDepth:
-
-									gl.depthFunc( gl.NOTEQUAL );
-									break;
-
-								default:
-
-									gl.depthFunc( gl.LEQUAL );
-
-							}
-
-						} else {
-
-							gl.depthFunc( gl.LEQUAL );
-
-						}
-
-						currentDepthFunc = depthFunc;
-
-					}
-
-				},
-
-				setLocked: function ( lock ) {
-
-					locked = lock;
-
-				},
-
-				setClear: function ( depth ) {
-
-					if ( currentDepthClear !== depth ) {
-
-						gl.clearDepth( depth );
-						currentDepthClear = depth;
-
-					}
-
-				},
-
-				reset: function () {
-
-					locked = false;
-
-					currentDepthMask = null;
-					currentDepthFunc = null;
-					currentDepthClear = null;
-
-				}
-
-			};
-
-		}
-
-		function StencilBuffer() {
-
-			var locked = false;
-
-			var currentStencilMask = null;
-			var currentStencilFunc = null;
-			var currentStencilRef = null;
-			var currentStencilFuncMask = null;
-			var currentStencilFail = null;
-			var currentStencilZFail = null;
-			var currentStencilZPass = null;
-			var currentStencilClear = null;
-
-			return {
-
-				setTest: function ( stencilTest ) {
-
-					if ( stencilTest ) {
-
-						enable( gl.STENCIL_TEST );
-
-					} else {
-
-						disable( gl.STENCIL_TEST );
-
-					}
-
-				},
-
-				setMask: function ( stencilMask ) {
-
-					if ( currentStencilMask !== stencilMask && ! locked ) {
-
-						gl.stencilMask( stencilMask );
-						currentStencilMask = stencilMask;
-
-					}
-
-				},
-
-				setFunc: function ( stencilFunc, stencilRef, stencilMask ) {
-
-					if ( currentStencilFunc !== stencilFunc ||
-					     currentStencilRef 	!== stencilRef 	||
-					     currentStencilFuncMask !== stencilMask ) {
-
-						gl.stencilFunc( stencilFunc, stencilRef, stencilMask );
-
-						currentStencilFunc = stencilFunc;
-						currentStencilRef = stencilRef;
-						currentStencilFuncMask = stencilMask;
-
-					}
-
-				},
-
-				setOp: function ( stencilFail, stencilZFail, stencilZPass ) {
-
-					if ( currentStencilFail	 !== stencilFail 	||
-					     currentStencilZFail !== stencilZFail ||
-					     currentStencilZPass !== stencilZPass ) {
-
-						gl.stencilOp( stencilFail, stencilZFail, stencilZPass );
-
-						currentStencilFail = stencilFail;
-						currentStencilZFail = stencilZFail;
-						currentStencilZPass = stencilZPass;
-
-					}
-
-				},
-
-				setLocked: function ( lock ) {
-
-					locked = lock;
-
-				},
-
-				setClear: function ( stencil ) {
-
-					if ( currentStencilClear !== stencil ) {
-
-						gl.clearStencil( stencil );
-						currentStencilClear = stencil;
-
-					}
-
-				},
-
-				reset: function () {
-
-					locked = false;
-
-					currentStencilMask = null;
-					currentStencilFunc = null;
-					currentStencilRef = null;
-					currentStencilFuncMask = null;
-					currentStencilFail = null;
-					currentStencilZFail = null;
-					currentStencilZPass = null;
-					currentStencilClear = null;
-
-				}
-
-			};
-
-		}
-
-		//
-
-		var colorBuffer = new ColorBuffer();
-		var depthBuffer = new DepthBuffer();
-		var stencilBuffer = new StencilBuffer();
-
-		var maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
-		var newAttributes = new Uint8Array( maxVertexAttributes );
-		var enabledAttributes = new Uint8Array( maxVertexAttributes );
-		var attributeDivisors = new Uint8Array( maxVertexAttributes );
-
-		var capabilities = {};
-
-		var compressedTextureFormats = null;
-
-		var currentProgram = null;
-
-		var currentBlending = null;
-		var currentBlendEquation = null;
-		var currentBlendSrc = null;
-		var currentBlendDst = null;
-		var currentBlendEquationAlpha = null;
-		var currentBlendSrcAlpha = null;
-		var currentBlendDstAlpha = null;
-		var currentPremultipledAlpha = false;
-
-		var currentFlipSided = null;
-		var currentCullFace = null;
-
-		var currentLineWidth = null;
-
-		var currentPolygonOffsetFactor = null;
-		var currentPolygonOffsetUnits = null;
-
-		var maxTextures = gl.getParameter( gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS );
-
-		var lineWidthAvailable = false;
-		var version = 0;
-		var glVersion = gl.getParameter( gl.VERSION );
-
-		if ( glVersion.indexOf( 'WebGL' ) !== - 1 ) {
-
-		   version = parseFloat( /^WebGL\ ([0-9])/.exec( glVersion )[ 1 ] );
-		   lineWidthAvailable = ( version >= 1.0 );
-
-		} else if ( glVersion.indexOf( 'OpenGL ES' ) !== - 1 ) {
-
-		   version = parseFloat( /^OpenGL\ ES\ ([0-9])/.exec( glVersion )[ 1 ] );
-		   lineWidthAvailable = ( version >= 2.0 );
-
-		}
-
-		var currentTextureSlot = null;
-		var currentBoundTextures = {};
-
-		var currentScissor = new Vector4();
-		var currentViewport = new Vector4();
-
-		function createTexture( type, target, count ) {
-
-			var data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
-			var texture = gl.createTexture();
-
-			gl.bindTexture( type, texture );
-			gl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST );
-			gl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
-
-			for ( var i = 0; i < count; i ++ ) {
-
-				gl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );
-
-			}
-
-			return texture;
-
-		}
-
-		var emptyTextures = {};
-		emptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 );
-		emptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 );
-
-		// init
-
-		colorBuffer.setClear( 0, 0, 0, 1 );
-		depthBuffer.setClear( 1 );
-		stencilBuffer.setClear( 0 );
-
-		enable( gl.DEPTH_TEST );
-		depthBuffer.setFunc( LessEqualDepth );
-
-		setFlipSided( false );
-		setCullFace( CullFaceBack );
-		enable( gl.CULL_FACE );
-
-		enable( gl.BLEND );
-		setBlending( NormalBlending );
-
-		//
-
-		function initAttributes() {
-
-			for ( var i = 0, l = newAttributes.length; i < l; i ++ ) {
-
-				newAttributes[ i ] = 0;
-
-			}
-
-		}
-
-		function enableAttribute( attribute ) {
-
-			newAttributes[ attribute ] = 1;
-
-			if ( enabledAttributes[ attribute ] === 0 ) {
-
-				gl.enableVertexAttribArray( attribute );
-				enabledAttributes[ attribute ] = 1;
-
-			}
-
-			if ( attributeDivisors[ attribute ] !== 0 ) {
-
-				var extension = extensions.get( 'ANGLE_instanced_arrays' );
-
-				extension.vertexAttribDivisorANGLE( attribute, 0 );
-				attributeDivisors[ attribute ] = 0;
-
-			}
-
-		}
-
-		function enableAttributeAndDivisor( attribute, meshPerAttribute ) {
-
-			newAttributes[ attribute ] = 1;
-
-			if ( enabledAttributes[ attribute ] === 0 ) {
-
-				gl.enableVertexAttribArray( attribute );
-				enabledAttributes[ attribute ] = 1;
-
-			}
-
-			if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {
-
-				var extension = extensions.get( 'ANGLE_instanced_arrays' );
-
-				extension.vertexAttribDivisorANGLE( attribute, meshPerAttribute );
-				attributeDivisors[ attribute ] = meshPerAttribute;
-
-			}
-
-		}
-
-		function disableUnusedAttributes() {
-
-			for ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {
-
-				if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {
-
-					gl.disableVertexAttribArray( i );
-					enabledAttributes[ i ] = 0;
-
-				}
-
-			}
-
-		}
-
-		function enable( id ) {
-
-			if ( capabilities[ id ] !== true ) {
-
-				gl.enable( id );
-				capabilities[ id ] = true;
-
-			}
-
-		}
-
-		function disable( id ) {
-
-			if ( capabilities[ id ] !== false ) {
-
-				gl.disable( id );
-				capabilities[ id ] = false;
-
-			}
-
-		}
-
-		function getCompressedTextureFormats() {
-
-			if ( compressedTextureFormats === null ) {
-
-				compressedTextureFormats = [];
-
-				if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||
-				     extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||
-				     extensions.get( 'WEBGL_compressed_texture_etc1' ) ||
-				     extensions.get( 'WEBGL_compressed_texture_astc' ) ) {
-
-					var formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );
-
-					for ( var i = 0; i < formats.length; i ++ ) {
-
-						compressedTextureFormats.push( formats[ i ] );
-
-					}
-
-				}
-
-			}
-
-			return compressedTextureFormats;
-
-		}
-
-		function useProgram( program ) {
-
-			if ( currentProgram !== program ) {
-
-				gl.useProgram( program );
-
-				currentProgram = program;
-
-				return true;
-
-			}
-
-			return false;
-
-		}
-
-		function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {
-
-			if ( blending !== NoBlending ) {
-
-				enable( gl.BLEND );
-
-			} else {
-
-				disable( gl.BLEND );
-
-			}
-
-			if ( blending !== CustomBlending ) {
-
-				if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {
-
-					switch ( blending ) {
-
-						case AdditiveBlending:
-
-							if ( premultipliedAlpha ) {
-
-								gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
-								gl.blendFuncSeparate( gl.ONE, gl.ONE, gl.ONE, gl.ONE );
-
-							} else {
-
-								gl.blendEquation( gl.FUNC_ADD );
-								gl.blendFunc( gl.SRC_ALPHA, gl.ONE );
-
-							}
-							break;
-
-						case SubtractiveBlending:
-
-							if ( premultipliedAlpha ) {
-
-								gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
-								gl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA );
-
-							} else {
-
-								gl.blendEquation( gl.FUNC_ADD );
-								gl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );
-
-							}
-							break;
-
-						case MultiplyBlending:
-
-							if ( premultipliedAlpha ) {
-
-								gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
-								gl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );
-
-							} else {
-
-								gl.blendEquation( gl.FUNC_ADD );
-								gl.blendFunc( gl.ZERO, gl.SRC_COLOR );
-
-							}
-							break;
-
-						default:
-
-							if ( premultipliedAlpha ) {
-
-								gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
-								gl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
-
-							} else {
-
-								gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
-								gl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
-
-							}
-
-					}
-
-				}
-
-				currentBlendEquation = null;
-				currentBlendSrc = null;
-				currentBlendDst = null;
-				currentBlendEquationAlpha = null;
-				currentBlendSrcAlpha = null;
-				currentBlendDstAlpha = null;
-
-			} else {
-
-				blendEquationAlpha = blendEquationAlpha || blendEquation;
-				blendSrcAlpha = blendSrcAlpha || blendSrc;
-				blendDstAlpha = blendDstAlpha || blendDst;
-
-				if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {
-
-					gl.blendEquationSeparate( utils.convert( blendEquation ), utils.convert( blendEquationAlpha ) );
-
-					currentBlendEquation = blendEquation;
-					currentBlendEquationAlpha = blendEquationAlpha;
-
-				}
-
-				if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {
-
-					gl.blendFuncSeparate( utils.convert( blendSrc ), utils.convert( blendDst ), utils.convert( blendSrcAlpha ), utils.convert( blendDstAlpha ) );
-
-					currentBlendSrc = blendSrc;
-					currentBlendDst = blendDst;
-					currentBlendSrcAlpha = blendSrcAlpha;
-					currentBlendDstAlpha = blendDstAlpha;
-
-				}
-
-			}
-
-			currentBlending = blending;
-			currentPremultipledAlpha = premultipliedAlpha;
-
-		}
-
-		function setMaterial( material, frontFaceCW ) {
-
-			material.side === DoubleSide
-				? disable( gl.CULL_FACE )
-				: enable( gl.CULL_FACE );
-
-			var flipSided = ( material.side === BackSide );
-			if ( frontFaceCW ) flipSided = ! flipSided;
-
-			setFlipSided( flipSided );
-
-			material.transparent === true
-				? setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha )
-				: setBlending( NoBlending );
-
-			depthBuffer.setFunc( material.depthFunc );
-			depthBuffer.setTest( material.depthTest );
-			depthBuffer.setMask( material.depthWrite );
-			colorBuffer.setMask( material.colorWrite );
-
-			setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );
-
-		}
-
-		//
-
-		function setFlipSided( flipSided ) {
-
-			if ( currentFlipSided !== flipSided ) {
-
-				if ( flipSided ) {
-
-					gl.frontFace( gl.CW );
-
-				} else {
-
-					gl.frontFace( gl.CCW );
-
-				}
-
-				currentFlipSided = flipSided;
-
-			}
-
-		}
-
-		function setCullFace( cullFace ) {
-
-			if ( cullFace !== CullFaceNone ) {
-
-				enable( gl.CULL_FACE );
-
-				if ( cullFace !== currentCullFace ) {
-
-					if ( cullFace === CullFaceBack ) {
-
-						gl.cullFace( gl.BACK );
-
-					} else if ( cullFace === CullFaceFront ) {
-
-						gl.cullFace( gl.FRONT );
-
-					} else {
-
-						gl.cullFace( gl.FRONT_AND_BACK );
-
-					}
-
-				}
-
-			} else {
-
-				disable( gl.CULL_FACE );
-
-			}
-
-			currentCullFace = cullFace;
-
-		}
-
-		function setLineWidth( width ) {
-
-			if ( width !== currentLineWidth ) {
-
-				if ( lineWidthAvailable ) gl.lineWidth( width );
-
-				currentLineWidth = width;
-
-			}
-
-		}
-
-		function setPolygonOffset( polygonOffset, factor, units ) {
-
-			if ( polygonOffset ) {
-
-				enable( gl.POLYGON_OFFSET_FILL );
-
-				if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {
-
-					gl.polygonOffset( factor, units );
-
-					currentPolygonOffsetFactor = factor;
-					currentPolygonOffsetUnits = units;
-
-				}
-
-			} else {
-
-				disable( gl.POLYGON_OFFSET_FILL );
-
-			}
-
-		}
-
-		function setScissorTest( scissorTest ) {
-
-			if ( scissorTest ) {
-
-				enable( gl.SCISSOR_TEST );
-
-			} else {
-
-				disable( gl.SCISSOR_TEST );
-
-			}
-
-		}
-
-		// texture
-
-		function activeTexture( webglSlot ) {
-
-			if ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;
-
-			if ( currentTextureSlot !== webglSlot ) {
-
-				gl.activeTexture( webglSlot );
-				currentTextureSlot = webglSlot;
-
-			}
-
-		}
-
-		function bindTexture( webglType, webglTexture ) {
-
-			if ( currentTextureSlot === null ) {
-
-				activeTexture();
-
-			}
-
-			var boundTexture = currentBoundTextures[ currentTextureSlot ];
-
-			if ( boundTexture === undefined ) {
-
-				boundTexture = { type: undefined, texture: undefined };
-				currentBoundTextures[ currentTextureSlot ] = boundTexture;
-
-			}
-
-			if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {
-
-				gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );
-
-				boundTexture.type = webglType;
-				boundTexture.texture = webglTexture;
-
-			}
-
-		}
-
-		function compressedTexImage2D() {
-
-			try {
-
-				gl.compressedTexImage2D.apply( gl, arguments );
-
-			} catch ( error ) {
-
-				console.error( 'THREE.WebGLState:', error );
-
-			}
-
-		}
-
-		function texImage2D() {
-
-			try {
-
-				gl.texImage2D.apply( gl, arguments );
-
-			} catch ( error ) {
-
-				console.error( 'THREE.WebGLState:', error );
-
-			}
-
-		}
-
-		//
-
-		function scissor( scissor ) {
-
-			if ( currentScissor.equals( scissor ) === false ) {
-
-				gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
-				currentScissor.copy( scissor );
-
-			}
-
-		}
-
-		function viewport( viewport ) {
-
-			if ( currentViewport.equals( viewport ) === false ) {
-
-				gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
-				currentViewport.copy( viewport );
-
-			}
-
-		}
-
-		//
-
-		function reset() {
-
-			for ( var i = 0; i < enabledAttributes.length; i ++ ) {
-
-				if ( enabledAttributes[ i ] === 1 ) {
-
-					gl.disableVertexAttribArray( i );
-					enabledAttributes[ i ] = 0;
-
-				}
-
-			}
-
-			capabilities = {};
-
-			compressedTextureFormats = null;
-
-			currentTextureSlot = null;
-			currentBoundTextures = {};
-
-			currentProgram = null;
-
-			currentBlending = null;
-
-			currentFlipSided = null;
-			currentCullFace = null;
-
-			colorBuffer.reset();
-			depthBuffer.reset();
-			stencilBuffer.reset();
-
-		}
-
-		return {
-
-			buffers: {
-				color: colorBuffer,
-				depth: depthBuffer,
-				stencil: stencilBuffer
-			},
-
-			initAttributes: initAttributes,
-			enableAttribute: enableAttribute,
-			enableAttributeAndDivisor: enableAttributeAndDivisor,
-			disableUnusedAttributes: disableUnusedAttributes,
-			enable: enable,
-			disable: disable,
-			getCompressedTextureFormats: getCompressedTextureFormats,
-
-			useProgram: useProgram,
-
-			setBlending: setBlending,
-			setMaterial: setMaterial,
-
-			setFlipSided: setFlipSided,
-			setCullFace: setCullFace,
-
-			setLineWidth: setLineWidth,
-			setPolygonOffset: setPolygonOffset,
-
-			setScissorTest: setScissorTest,
-
-			activeTexture: activeTexture,
-			bindTexture: bindTexture,
-			compressedTexImage2D: compressedTexImage2D,
-			texImage2D: texImage2D,
-
-			scissor: scissor,
-			viewport: viewport,
-
-			reset: reset
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLCapabilities( gl, extensions, parameters ) {
-
-		var maxAnisotropy;
-
-		function getMaxAnisotropy() {
-
-			if ( maxAnisotropy !== undefined ) return maxAnisotropy;
-
-			var extension = extensions.get( 'EXT_texture_filter_anisotropic' );
-
-			if ( extension !== null ) {
-
-				maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );
-
-			} else {
-
-				maxAnisotropy = 0;
-
-			}
-
-			return maxAnisotropy;
-
-		}
-
-		function getMaxPrecision( precision ) {
-
-			if ( precision === 'highp' ) {
-
-				if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&
-				     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {
-
-					return 'highp';
-
-				}
-
-				precision = 'mediump';
-
-			}
-
-			if ( precision === 'mediump' ) {
-
-				if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&
-				     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {
-
-					return 'mediump';
-
-				}
-
-			}
-
-			return 'lowp';
-
-		}
-
-		var precision = parameters.precision !== undefined ? parameters.precision : 'highp';
-		var maxPrecision = getMaxPrecision( precision );
-
-		if ( maxPrecision !== precision ) {
-
-			console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
-			precision = maxPrecision;
-
-		}
-
-		var logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
-
-		var maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );
-		var maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );
-		var maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );
-		var maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );
-
-		var maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
-		var maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );
-		var maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );
-		var maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );
-
-		var vertexTextures = maxVertexTextures > 0;
-		var floatFragmentTextures = !! extensions.get( 'OES_texture_float' );
-		var floatVertexTextures = vertexTextures && floatFragmentTextures;
-
-		return {
-
-			getMaxAnisotropy: getMaxAnisotropy,
-			getMaxPrecision: getMaxPrecision,
-
-			precision: precision,
-			logarithmicDepthBuffer: logarithmicDepthBuffer,
-
-			maxTextures: maxTextures,
-			maxVertexTextures: maxVertexTextures,
-			maxTextureSize: maxTextureSize,
-			maxCubemapSize: maxCubemapSize,
-
-			maxAttributes: maxAttributes,
-			maxVertexUniforms: maxVertexUniforms,
-			maxVaryings: maxVaryings,
-			maxFragmentUniforms: maxFragmentUniforms,
-
-			vertexTextures: vertexTextures,
-			floatFragmentTextures: floatFragmentTextures,
-			floatVertexTextures: floatVertexTextures
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author greggman / http://games.greggman.com/
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author tschw
-	 */
-
-	function PerspectiveCamera( fov, aspect, near, far ) {
-
-		Camera.call( this );
-
-		this.type = 'PerspectiveCamera';
-
-		this.fov = fov !== undefined ? fov : 50;
-		this.zoom = 1;
-
-		this.near = near !== undefined ? near : 0.1;
-		this.far = far !== undefined ? far : 2000;
-		this.focus = 10;
-
-		this.aspect = aspect !== undefined ? aspect : 1;
-		this.view = null;
-
-		this.filmGauge = 35;	// width of the film (default in millimeters)
-		this.filmOffset = 0;	// horizontal film offset (same unit as gauge)
-
-		this.updateProjectionMatrix();
-
-	}
-
-	PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {
-
-		constructor: PerspectiveCamera,
-
-		isPerspectiveCamera: true,
-
-		copy: function ( source, recursive ) {
-
-			Camera.prototype.copy.call( this, source, recursive );
-
-			this.fov = source.fov;
-			this.zoom = source.zoom;
-
-			this.near = source.near;
-			this.far = source.far;
-			this.focus = source.focus;
-
-			this.aspect = source.aspect;
-			this.view = source.view === null ? null : Object.assign( {}, source.view );
-
-			this.filmGauge = source.filmGauge;
-			this.filmOffset = source.filmOffset;
-
-			return this;
-
-		},
-
-		/**
-		 * Sets the FOV by focal length in respect to the current .filmGauge.
-		 *
-		 * The default film gauge is 35, so that the focal length can be specified for
-		 * a 35mm (full frame) camera.
-		 *
-		 * Values for focal length and film gauge must have the same unit.
-		 */
-		setFocalLength: function ( focalLength ) {
-
-			// see http://www.bobatkins.com/photography/technical/field_of_view.html
-			var vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
-
-			this.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );
-			this.updateProjectionMatrix();
-
-		},
-
-		/**
-		 * Calculates the focal length from the current .fov and .filmGauge.
-		 */
-		getFocalLength: function () {
-
-			var vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );
-
-			return 0.5 * this.getFilmHeight() / vExtentSlope;
-
-		},
-
-		getEffectiveFOV: function () {
-
-			return _Math.RAD2DEG * 2 * Math.atan(
-				Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );
-
-		},
-
-		getFilmWidth: function () {
-
-			// film not completely covered in portrait format (aspect < 1)
-			return this.filmGauge * Math.min( this.aspect, 1 );
-
-		},
-
-		getFilmHeight: function () {
-
-			// film not completely covered in landscape format (aspect > 1)
-			return this.filmGauge / Math.max( this.aspect, 1 );
-
-		},
-
-		/**
-		 * Sets an offset in a larger frustum. This is useful for multi-window or
-		 * multi-monitor/multi-machine setups.
-		 *
-		 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
-		 * the monitors are in grid like this
-		 *
-		 *   +---+---+---+
-		 *   | A | B | C |
-		 *   +---+---+---+
-		 *   | D | E | F |
-		 *   +---+---+---+
-		 *
-		 * then for each monitor you would call it like this
-		 *
-		 *   var w = 1920;
-		 *   var h = 1080;
-		 *   var fullWidth = w * 3;
-		 *   var fullHeight = h * 2;
-		 *
-		 *   --A--
-		 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
-		 *   --B--
-		 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
-		 *   --C--
-		 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
-		 *   --D--
-		 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
-		 *   --E--
-		 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
-		 *   --F--
-		 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
-		 *
-		 *   Note there is no reason monitors have to be the same size or in a grid.
-		 */
-		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {
-
-			this.aspect = fullWidth / fullHeight;
-
-			if ( this.view === null ) {
-
-				this.view = {
-					enabled: true,
-					fullWidth: 1,
-					fullHeight: 1,
-					offsetX: 0,
-					offsetY: 0,
-					width: 1,
-					height: 1
-				};
-
-			}
-
-			this.view.enabled = true;
-			this.view.fullWidth = fullWidth;
-			this.view.fullHeight = fullHeight;
-			this.view.offsetX = x;
-			this.view.offsetY = y;
-			this.view.width = width;
-			this.view.height = height;
-
-			this.updateProjectionMatrix();
-
-		},
-
-		clearViewOffset: function () {
-
-			if ( this.view !== null ) {
-
-				this.view.enabled = false;
-
-			}
-
-			this.updateProjectionMatrix();
-
-		},
-
-		updateProjectionMatrix: function () {
-
-			var near = this.near,
-				top = near * Math.tan(
-					_Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,
-				height = 2 * top,
-				width = this.aspect * height,
-				left = - 0.5 * width,
-				view = this.view;
-
-			if ( this.view !== null && this.view.enabled ) {
-
-				var fullWidth = view.fullWidth,
-					fullHeight = view.fullHeight;
-
-				left += view.offsetX * width / fullWidth;
-				top -= view.offsetY * height / fullHeight;
-				width *= view.width / fullWidth;
-				height *= view.height / fullHeight;
-
-			}
-
-			var skew = this.filmOffset;
-			if ( skew !== 0 ) left += near * skew / this.getFilmWidth();
-
-			this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.fov = this.fov;
-			data.object.zoom = this.zoom;
-
-			data.object.near = this.near;
-			data.object.far = this.far;
-			data.object.focus = this.focus;
-
-			data.object.aspect = this.aspect;
-
-			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );
-
-			data.object.filmGauge = this.filmGauge;
-			data.object.filmOffset = this.filmOffset;
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function ArrayCamera( array ) {
-
-		PerspectiveCamera.call( this );
-
-		this.cameras = array || [];
-
-	}
-
-	ArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {
-
-		constructor: ArrayCamera,
-
-		isArrayCamera: true
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebVRManager( renderer ) {
-
-		var scope = this;
-
-		var device = null;
-		var frameData = null;
-
-		var poseTarget = null;
-
-		var standingMatrix = new Matrix4();
-		var standingMatrixInverse = new Matrix4();
-
-		if ( typeof window !== 'undefined' && 'VRFrameData' in window ) {
-
-			frameData = new window.VRFrameData();
-
-		}
-
-		var matrixWorldInverse = new Matrix4();
-		var tempQuaternion = new Quaternion();
-		var tempPosition = new Vector3();
-
-		var cameraL = new PerspectiveCamera();
-		cameraL.bounds = new Vector4( 0.0, 0.0, 0.5, 1.0 );
-		cameraL.layers.enable( 1 );
-
-		var cameraR = new PerspectiveCamera();
-		cameraR.bounds = new Vector4( 0.5, 0.0, 0.5, 1.0 );
-		cameraR.layers.enable( 2 );
-
-		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
-		cameraVR.layers.enable( 1 );
-		cameraVR.layers.enable( 2 );
-
-		//
-
-		var currentSize, currentPixelRatio;
-
-		function onVRDisplayPresentChange() {
-
-			if ( device !== null && device.isPresenting ) {
-
-				var eyeParameters = device.getEyeParameters( 'left' );
-				var renderWidth = eyeParameters.renderWidth;
-				var renderHeight = eyeParameters.renderHeight;
-
-				currentPixelRatio = renderer.getPixelRatio();
-				currentSize = renderer.getSize();
-
-				renderer.setDrawingBufferSize( renderWidth * 2, renderHeight, 1 );
-
-			} else if ( scope.enabled ) {
-
-				renderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );
-
-			}
-
-		}
-
-		if ( typeof window !== 'undefined' ) {
-
-			window.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );
-
-		}
-
-		//
-
-		this.enabled = false;
-		this.userHeight = 1.6;
-
-		this.getDevice = function () {
-
-			return device;
-
-		};
-
-		this.setDevice = function ( value ) {
-
-			if ( value !== undefined ) device = value;
-
-		};
-
-		this.setPoseTarget = function ( object ) {
-
-			if ( object !== undefined ) poseTarget = object;
-
-		};
-
-		this.getCamera = function ( camera ) {
-
-			if ( device === null ) return camera;
-
-			device.depthNear = camera.near;
-			device.depthFar = camera.far;
-
-			device.getFrameData( frameData );
-
-			//
-
-			var stageParameters = device.stageParameters;
-
-			if ( stageParameters ) {
-
-				standingMatrix.fromArray( stageParameters.sittingToStandingTransform );
-
-			} else {
-
-				standingMatrix.makeTranslation( 0, scope.userHeight, 0 );
-
-			}
-
-
-			var pose = frameData.pose;
-			var poseObject = poseTarget !== null ? poseTarget : camera;
-
-			// We want to manipulate poseObject by its position and quaternion components since users may rely on them.
-			poseObject.matrix.copy( standingMatrix );
-			poseObject.matrix.decompose(poseObject.position, poseObject.quaternion, poseObject.scale);
-
-			if ( pose.orientation !== null ) {
-
-				tempQuaternion.fromArray ( pose.orientation );
-				poseObject.quaternion.multiply( tempQuaternion );
-
-			}
-
-			if ( pose.position !== null ) {
-
-				tempQuaternion.setFromRotationMatrix(standingMatrix);
-				tempPosition.fromArray( pose.position );
-				tempPosition.applyQuaternion(tempQuaternion);
-				poseObject.position.add( tempPosition );
-
-			} else {
-
-				poseObject.position.set( 0, 0, 0 );
-
-			}
-
-			poseObject.updateMatrixWorld();
-
-
-			if ( device.isPresenting === false ) return camera;
-
-			//
-
-			cameraL.near = camera.near;
-			cameraR.near = camera.near;
-
-			cameraL.far = camera.far;
-			cameraR.far = camera.far;
-
-			cameraVR.matrixWorld.copy( camera.matrixWorld );
-			cameraVR.matrixWorldInverse.copy( camera.matrixWorldInverse );
-
-			cameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );
-			cameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );
-
-			// TODO (mrdoob) Double check this code
-
-			standingMatrixInverse.getInverse( standingMatrix );
-
-			cameraL.matrixWorldInverse.multiply( standingMatrixInverse );
-			cameraR.matrixWorldInverse.multiply( standingMatrixInverse );
-
-			var parent = poseObject.parent;
-
-			if ( parent !== null ) {
-
-				matrixWorldInverse.getInverse( parent.matrixWorld );
-
-				cameraL.matrixWorldInverse.multiply( matrixWorldInverse );
-				cameraR.matrixWorldInverse.multiply( matrixWorldInverse );
-
-			}
-
-			// envMap and Mirror needs camera.matrixWorld
-
-			cameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );
-			cameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );
-
-			cameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );
-			cameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );
-
-			// HACK (mrdoob)
-			// https://github.com/w3c/webvr/issues/203
-
-			cameraVR.projectionMatrix.copy( cameraL.projectionMatrix );
-
-			//
-
-			var layers = device.getLayers();
-
-			if ( layers.length ) {
-
-				var layer = layers[ 0 ];
-
-				if ( layer.leftBounds !== null && layer.leftBounds.length === 4 ) {
-
-					cameraL.bounds.fromArray( layer.leftBounds );
-
-				}
-
-				if ( layer.rightBounds !== null && layer.rightBounds.length === 4 ) {
-
-					cameraR.bounds.fromArray( layer.rightBounds );
-
-				}
-
-			}
-
-			return cameraVR;
-
-		};
-
-		this.getStandingMatrix = function () {
-
-			return standingMatrix;
-
-		};
-
-		this.submitFrame = function () {
-
-			if ( device && device.isPresenting ) device.submitFrame();
-
-		};
-
-		this.dispose = function () {
-
-			if ( typeof window !== 'undefined' ) {
-
-				window.removeEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange );
-
-			}
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function WebGLExtensions( gl ) {
-
-		var extensions = {};
-
-		return {
-
-			get: function ( name ) {
-
-				if ( extensions[ name ] !== undefined ) {
-
-					return extensions[ name ];
-
-				}
-
-				var extension;
-
-				switch ( name ) {
-
-					case 'WEBGL_depth_texture':
-						extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
-						break;
-
-					case 'EXT_texture_filter_anisotropic':
-						extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
-						break;
-
-					case 'WEBGL_compressed_texture_s3tc':
-						extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
-						break;
-
-					case 'WEBGL_compressed_texture_pvrtc':
-						extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
-						break;
-
-					case 'WEBGL_compressed_texture_etc1':
-						extension = gl.getExtension( 'WEBGL_compressed_texture_etc1' );
-						break;
-
-					default:
-						extension = gl.getExtension( name );
-
-				}
-
-				if ( extension === null ) {
-
-					console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );
-
-				}
-
-				extensions[ name ] = extension;
-
-				return extension;
-
-			}
-
-		};
-
-	}
-
-	/**
-	 * @author tschw
-	 */
-
-	function WebGLClipping() {
-
-		var scope = this,
-
-			globalState = null,
-			numGlobalPlanes = 0,
-			localClippingEnabled = false,
-			renderingShadows = false,
-
-			plane = new Plane(),
-			viewNormalMatrix = new Matrix3(),
-
-			uniform = { value: null, needsUpdate: false };
-
-		this.uniform = uniform;
-		this.numPlanes = 0;
-		this.numIntersection = 0;
-
-		this.init = function ( planes, enableLocalClipping, camera ) {
-
-			var enabled =
-				planes.length !== 0 ||
-				enableLocalClipping ||
-				// enable state of previous frame - the clipping code has to
-				// run another frame in order to reset the state:
-				numGlobalPlanes !== 0 ||
-				localClippingEnabled;
-
-			localClippingEnabled = enableLocalClipping;
-
-			globalState = projectPlanes( planes, camera, 0 );
-			numGlobalPlanes = planes.length;
-
-			return enabled;
-
-		};
-
-		this.beginShadows = function () {
-
-			renderingShadows = true;
-			projectPlanes( null );
-
-		};
-
-		this.endShadows = function () {
-
-			renderingShadows = false;
-			resetGlobalState();
-
-		};
-
-		this.setState = function ( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {
-
-			if ( ! localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && ! clipShadows ) {
-
-				// there's no local clipping
-
-				if ( renderingShadows ) {
-
-					// there's no global clipping
-
-					projectPlanes( null );
-
-				} else {
-
-					resetGlobalState();
-
-				}
-
-			} else {
-
-				var nGlobal = renderingShadows ? 0 : numGlobalPlanes,
-					lGlobal = nGlobal * 4,
-
-					dstArray = cache.clippingState || null;
-
-				uniform.value = dstArray; // ensure unique state
-
-				dstArray = projectPlanes( planes, camera, lGlobal, fromCache );
-
-				for ( var i = 0; i !== lGlobal; ++ i ) {
-
-					dstArray[ i ] = globalState[ i ];
-
-				}
-
-				cache.clippingState = dstArray;
-				this.numIntersection = clipIntersection ? this.numPlanes : 0;
-				this.numPlanes += nGlobal;
-
-			}
-
-
-		};
-
-		function resetGlobalState() {
-
-			if ( uniform.value !== globalState ) {
-
-				uniform.value = globalState;
-				uniform.needsUpdate = numGlobalPlanes > 0;
-
-			}
-
-			scope.numPlanes = numGlobalPlanes;
-			scope.numIntersection = 0;
-
-		}
-
-		function projectPlanes( planes, camera, dstOffset, skipTransform ) {
-
-			var nPlanes = planes !== null ? planes.length : 0,
-				dstArray = null;
-
-			if ( nPlanes !== 0 ) {
-
-				dstArray = uniform.value;
-
-				if ( skipTransform !== true || dstArray === null ) {
-
-					var flatSize = dstOffset + nPlanes * 4,
-						viewMatrix = camera.matrixWorldInverse;
-
-					viewNormalMatrix.getNormalMatrix( viewMatrix );
-
-					if ( dstArray === null || dstArray.length < flatSize ) {
-
-						dstArray = new Float32Array( flatSize );
-
-					}
-
-					for ( var i = 0, i4 = dstOffset; i !== nPlanes; ++ i, i4 += 4 ) {
-
-						plane.copy( planes[ i ] ).applyMatrix4( viewMatrix, viewNormalMatrix );
-
-						plane.normal.toArray( dstArray, i4 );
-						dstArray[ i4 + 3 ] = plane.constant;
-
-					}
-
-				}
-
-				uniform.value = dstArray;
-				uniform.needsUpdate = true;
-
-			}
-
-			scope.numPlanes = nPlanes;
-
-			return dstArray;
-
-		}
-
-	}
-
-	/**
-	 * @author thespite / http://www.twitter.com/thespite
-	 */
-
-	function WebGLUtils( gl, extensions ) {
-
-		function convert( p ) {
-
-			var extension;
-
-			if ( p === RepeatWrapping ) return gl.REPEAT;
-			if ( p === ClampToEdgeWrapping ) return gl.CLAMP_TO_EDGE;
-			if ( p === MirroredRepeatWrapping ) return gl.MIRRORED_REPEAT;
-
-			if ( p === NearestFilter ) return gl.NEAREST;
-			if ( p === NearestMipMapNearestFilter ) return gl.NEAREST_MIPMAP_NEAREST;
-			if ( p === NearestMipMapLinearFilter ) return gl.NEAREST_MIPMAP_LINEAR;
-
-			if ( p === LinearFilter ) return gl.LINEAR;
-			if ( p === LinearMipMapNearestFilter ) return gl.LINEAR_MIPMAP_NEAREST;
-			if ( p === LinearMipMapLinearFilter ) return gl.LINEAR_MIPMAP_LINEAR;
-
-			if ( p === UnsignedByteType ) return gl.UNSIGNED_BYTE;
-			if ( p === UnsignedShort4444Type ) return gl.UNSIGNED_SHORT_4_4_4_4;
-			if ( p === UnsignedShort5551Type ) return gl.UNSIGNED_SHORT_5_5_5_1;
-			if ( p === UnsignedShort565Type ) return gl.UNSIGNED_SHORT_5_6_5;
-
-			if ( p === ByteType ) return gl.BYTE;
-			if ( p === ShortType ) return gl.SHORT;
-			if ( p === UnsignedShortType ) return gl.UNSIGNED_SHORT;
-			if ( p === IntType ) return gl.INT;
-			if ( p === UnsignedIntType ) return gl.UNSIGNED_INT;
-			if ( p === FloatType ) return gl.FLOAT;
-
-			if ( p === HalfFloatType ) {
-
-				extension = extensions.get( 'OES_texture_half_float' );
-
-				if ( extension !== null ) return extension.HALF_FLOAT_OES;
-
-			}
-
-			if ( p === AlphaFormat ) return gl.ALPHA;
-			if ( p === RGBFormat ) return gl.RGB;
-			if ( p === RGBAFormat ) return gl.RGBA;
-			if ( p === LuminanceFormat ) return gl.LUMINANCE;
-			if ( p === LuminanceAlphaFormat ) return gl.LUMINANCE_ALPHA;
-			if ( p === DepthFormat ) return gl.DEPTH_COMPONENT;
-			if ( p === DepthStencilFormat ) return gl.DEPTH_STENCIL;
-
-			if ( p === AddEquation ) return gl.FUNC_ADD;
-			if ( p === SubtractEquation ) return gl.FUNC_SUBTRACT;
-			if ( p === ReverseSubtractEquation ) return gl.FUNC_REVERSE_SUBTRACT;
-
-			if ( p === ZeroFactor ) return gl.ZERO;
-			if ( p === OneFactor ) return gl.ONE;
-			if ( p === SrcColorFactor ) return gl.SRC_COLOR;
-			if ( p === OneMinusSrcColorFactor ) return gl.ONE_MINUS_SRC_COLOR;
-			if ( p === SrcAlphaFactor ) return gl.SRC_ALPHA;
-			if ( p === OneMinusSrcAlphaFactor ) return gl.ONE_MINUS_SRC_ALPHA;
-			if ( p === DstAlphaFactor ) return gl.DST_ALPHA;
-			if ( p === OneMinusDstAlphaFactor ) return gl.ONE_MINUS_DST_ALPHA;
-
-			if ( p === DstColorFactor ) return gl.DST_COLOR;
-			if ( p === OneMinusDstColorFactor ) return gl.ONE_MINUS_DST_COLOR;
-			if ( p === SrcAlphaSaturateFactor ) return gl.SRC_ALPHA_SATURATE;
-
-			if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||
-				p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );
-
-				if ( extension !== null ) {
-
-					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
-					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
-					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
-					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
-
-				}
-
-			}
-
-			if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||
-				p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );
-
-				if ( extension !== null ) {
-
-					if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
-					if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
-					if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
-					if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
-
-				}
-
-			}
-
-			if ( p === RGB_ETC1_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_etc1' );
-
-				if ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;
-
-			}
-
-			if ( p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format ||
-				p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format ||
-				p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format ||
-				p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format ||
-				p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format ) {
-
-				extension = extensions.get( 'WEBGL_compressed_texture_astc' );
-
-				if ( extension !== null ) {
-
-					return p;
-
-				}
-
-			}
-
-			if ( p === MinEquation || p === MaxEquation ) {
-
-				extension = extensions.get( 'EXT_blend_minmax' );
-
-				if ( extension !== null ) {
-
-					if ( p === MinEquation ) return extension.MIN_EXT;
-					if ( p === MaxEquation ) return extension.MAX_EXT;
-
-				}
-
-			}
-
-			if ( p === UnsignedInt248Type ) {
-
-				extension = extensions.get( 'WEBGL_depth_texture' );
-
-				if ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;
-
-			}
-
-			return 0;
-
-		}
-
-		return { convert: convert };
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function UniformsCache() {
-
-		var lights = {};
-
-		return {
-
-			get: function ( light ) {
-
-				if ( lights[ light.id ] !== undefined ) {
-
-					return lights[ light.id ];
-
-				}
-
-				var uniforms;
-
-				switch ( light.type ) {
-
-					case 'DirectionalLight':
-						uniforms = {
-							direction: new Vector3(),
-							color: new Color(),
-
-							shadow: false,
-							shadowBias: 0,
-							shadowRadius: 1,
-							shadowMapSize: new Vector2()
-						};
-						break;
-
-					case 'SpotLight':
-						uniforms = {
-							position: new Vector3(),
-							direction: new Vector3(),
-							color: new Color(),
-							distance: 0,
-							coneCos: 0,
-							penumbraCos: 0,
-							decay: 0,
-
-							shadow: false,
-							shadowBias: 0,
-							shadowRadius: 1,
-							shadowMapSize: new Vector2()
-						};
-						break;
-
-					case 'PointLight':
-						uniforms = {
-							position: new Vector3(),
-							color: new Color(),
-							distance: 0,
-							decay: 0,
-
-							shadow: false,
-							shadowBias: 0,
-							shadowRadius: 1,
-							shadowMapSize: new Vector2(),
-							shadowCameraNear: 1,
-							shadowCameraFar: 1000
-						};
-						break;
-
-					case 'HemisphereLight':
-						uniforms = {
-							direction: new Vector3(),
-							skyColor: new Color(),
-							groundColor: new Color()
-						};
-						break;
-
-					case 'RectAreaLight':
-						uniforms = {
-							color: new Color(),
-							position: new Vector3(),
-							halfWidth: new Vector3(),
-							halfHeight: new Vector3()
-							// TODO (abelnation): set RectAreaLight shadow uniforms
-						};
-						break;
-
-				}
-
-				lights[ light.id ] = uniforms;
-
-				return uniforms;
-
-			}
-
-		};
-
-	}
-
-	var count = 0;
-
-	function WebGLLights() {
-
-		var cache = new UniformsCache();
-
-		var state = {
-
-			id: count ++,
-
-			hash: '',
-
-			ambient: [ 0, 0, 0 ],
-			directional: [],
-			directionalShadowMap: [],
-			directionalShadowMatrix: [],
-			spot: [],
-			spotShadowMap: [],
-			spotShadowMatrix: [],
-			rectArea: [],
-			point: [],
-			pointShadowMap: [],
-			pointShadowMatrix: [],
-			hemi: []
-
-		};
-
-		var vector3 = new Vector3();
-		var matrix4 = new Matrix4();
-		var matrix42 = new Matrix4();
-
-		function setup( lights, shadows, camera ) {
-
-			var r = 0, g = 0, b = 0;
-
-			var directionalLength = 0;
-			var pointLength = 0;
-			var spotLength = 0;
-			var rectAreaLength = 0;
-			var hemiLength = 0;
-
-			var viewMatrix = camera.matrixWorldInverse;
-
-			for ( var i = 0, l = lights.length; i < l; i ++ ) {
-
-				var light = lights[ i ];
-
-				var color = light.color;
-				var intensity = light.intensity;
-				var distance = light.distance;
-
-				var shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;
-
-				if ( light.isAmbientLight ) {
-
-					r += color.r * intensity;
-					g += color.g * intensity;
-					b += color.b * intensity;
-
-				} else if ( light.isDirectionalLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
-					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
-					vector3.setFromMatrixPosition( light.target.matrixWorld );
-					uniforms.direction.sub( vector3 );
-					uniforms.direction.transformDirection( viewMatrix );
-
-					uniforms.shadow = light.castShadow;
-
-					if ( light.castShadow ) {
-
-						var shadow = light.shadow;
-
-						uniforms.shadowBias = shadow.bias;
-						uniforms.shadowRadius = shadow.radius;
-						uniforms.shadowMapSize = shadow.mapSize;
-
-					}
-
-					state.directionalShadowMap[ directionalLength ] = shadowMap;
-					state.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;
-					state.directional[ directionalLength ] = uniforms;
-
-					directionalLength ++;
-
-				} else if ( light.isSpotLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.position.setFromMatrixPosition( light.matrixWorld );
-					uniforms.position.applyMatrix4( viewMatrix );
-
-					uniforms.color.copy( color ).multiplyScalar( intensity );
-					uniforms.distance = distance;
-
-					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
-					vector3.setFromMatrixPosition( light.target.matrixWorld );
-					uniforms.direction.sub( vector3 );
-					uniforms.direction.transformDirection( viewMatrix );
-
-					uniforms.coneCos = Math.cos( light.angle );
-					uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
-					uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;
-
-					uniforms.shadow = light.castShadow;
-
-					if ( light.castShadow ) {
-
-						var shadow = light.shadow;
-
-						uniforms.shadowBias = shadow.bias;
-						uniforms.shadowRadius = shadow.radius;
-						uniforms.shadowMapSize = shadow.mapSize;
-
-					}
-
-					state.spotShadowMap[ spotLength ] = shadowMap;
-					state.spotShadowMatrix[ spotLength ] = light.shadow.matrix;
-					state.spot[ spotLength ] = uniforms;
-
-					spotLength ++;
-
-				} else if ( light.isRectAreaLight ) {
-
-					var uniforms = cache.get( light );
-
-					// (a) intensity is the total visible light emitted
-					//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );
-
-					// (b) intensity is the brightness of the light
-					uniforms.color.copy( color ).multiplyScalar( intensity );
-
-					uniforms.position.setFromMatrixPosition( light.matrixWorld );
-					uniforms.position.applyMatrix4( viewMatrix );
-
-					// extract local rotation of light to derive width/height half vectors
-					matrix42.identity();
-					matrix4.copy( light.matrixWorld );
-					matrix4.premultiply( viewMatrix );
-					matrix42.extractRotation( matrix4 );
-
-					uniforms.halfWidth.set( light.width * 0.5, 0.0, 0.0 );
-					uniforms.halfHeight.set( 0.0, light.height * 0.5, 0.0 );
-
-					uniforms.halfWidth.applyMatrix4( matrix42 );
-					uniforms.halfHeight.applyMatrix4( matrix42 );
-
-					// TODO (abelnation): RectAreaLight distance?
-					// uniforms.distance = distance;
-
-					state.rectArea[ rectAreaLength ] = uniforms;
-
-					rectAreaLength ++;
-
-				} else if ( light.isPointLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.position.setFromMatrixPosition( light.matrixWorld );
-					uniforms.position.applyMatrix4( viewMatrix );
-
-					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
-					uniforms.distance = light.distance;
-					uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;
-
-					uniforms.shadow = light.castShadow;
-
-					if ( light.castShadow ) {
-
-						var shadow = light.shadow;
-
-						uniforms.shadowBias = shadow.bias;
-						uniforms.shadowRadius = shadow.radius;
-						uniforms.shadowMapSize = shadow.mapSize;
-						uniforms.shadowCameraNear = shadow.camera.near;
-						uniforms.shadowCameraFar = shadow.camera.far;
-
-					}
-
-					state.pointShadowMap[ pointLength ] = shadowMap;
-					state.pointShadowMatrix[ pointLength ] = light.shadow.matrix;
-					state.point[ pointLength ] = uniforms;
-
-					pointLength ++;
-
-				} else if ( light.isHemisphereLight ) {
-
-					var uniforms = cache.get( light );
-
-					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
-					uniforms.direction.transformDirection( viewMatrix );
-					uniforms.direction.normalize();
-
-					uniforms.skyColor.copy( light.color ).multiplyScalar( intensity );
-					uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );
-
-					state.hemi[ hemiLength ] = uniforms;
-
-					hemiLength ++;
-
-				}
-
-			}
-
-			state.ambient[ 0 ] = r;
-			state.ambient[ 1 ] = g;
-			state.ambient[ 2 ] = b;
-
-			state.directional.length = directionalLength;
-			state.spot.length = spotLength;
-			state.rectArea.length = rectAreaLength;
-			state.point.length = pointLength;
-			state.hemi.length = hemiLength;
-
-			state.hash = state.id + ',' + directionalLength + ',' + pointLength + ',' + spotLength + ',' + rectAreaLength + ',' + hemiLength + ',' + shadows.length;
-
-		}
-
-		return {
-			setup: setup,
-			state: state
-		};
-
-	}
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function WebGLRenderState() {
-
-		var lights = new WebGLLights();
-
-		var lightsArray = [];
-		var shadowsArray = [];
-		var spritesArray = [];
-
-		function init() {
-
-			lightsArray.length = 0;
-			shadowsArray.length = 0;
-			spritesArray.length = 0;
-
-		}
-
-		function pushLight( light ) {
-
-			lightsArray.push( light );
-
-		}
-
-		function pushShadow( shadowLight ) {
-
-			shadowsArray.push( shadowLight );
-
-		}
-
-		function pushSprite( shadowLight ) {
-
-			spritesArray.push( shadowLight );
-
-		}
-
-		function setupLights( camera ) {
-
-			lights.setup( lightsArray, shadowsArray, camera );
-
-		}
-
-		var state = {
-			lightsArray: lightsArray,
-			shadowsArray: shadowsArray,
-			spritesArray: spritesArray,
-
-			lights: lights
-		};
-
-		return {
-			init: init,
-			state: state,
-			setupLights: setupLights,
-
-			pushLight: pushLight,
-			pushShadow: pushShadow,
-			pushSprite: pushSprite
-		};
-
-	}
-
-	function WebGLRenderStates() {
-
-		var renderStates = {};
-
-		function get( scene, camera ) {
-
-			var hash = scene.id + ',' + camera.id;
-
-			var renderState = renderStates[ hash ];
-
-			if ( renderState === undefined ) {
-
-				renderState = new WebGLRenderState();
-				renderStates[ hash ] = renderState;
-
-			}
-
-			return renderState;
-
-		}
-
-		function dispose() {
-
-			renderStates = {};
-
-		}
-
-		return {
-			get: get,
-			dispose: dispose
-		};
-
-	}
-
-	/**
-	 * @author supereggbert / http://www.paulbrunt.co.uk/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author szimek / https://github.com/szimek/
-	 * @author tschw
-	 */
-
-	function WebGLRenderer( parameters ) {
-
-		console.log( 'THREE.WebGLRenderer', REVISION );
-
-		parameters = parameters || {};
-
-		var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),
-			_context = parameters.context !== undefined ? parameters.context : null,
-
-			_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
-			_depth = parameters.depth !== undefined ? parameters.depth : true,
-			_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
-			_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
-			_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
-			_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false,
-			_powerPreference = parameters.powerPreference !== undefined ? parameters.powerPreference : 'default';
-
-		var currentRenderList = null;
-		var currentRenderState = null;
-
-		// public properties
-
-		this.domElement = _canvas;
-		this.context = null;
-
-		// clearing
-
-		this.autoClear = true;
-		this.autoClearColor = true;
-		this.autoClearDepth = true;
-		this.autoClearStencil = true;
-
-		// scene graph
-
-		this.sortObjects = true;
-
-		// user-defined clipping
-
-		this.clippingPlanes = [];
-		this.localClippingEnabled = false;
-
-		// physically based shading
-
-		this.gammaFactor = 2.0;	// for backwards compatibility
-		this.gammaInput = false;
-		this.gammaOutput = false;
-
-		// physical lights
-
-		this.physicallyCorrectLights = false;
-
-		// tone mapping
-
-		this.toneMapping = LinearToneMapping;
-		this.toneMappingExposure = 1.0;
-		this.toneMappingWhitePoint = 1.0;
-
-		// morphs
-
-		this.maxMorphTargets = 8;
-		this.maxMorphNormals = 4;
-
-		// internal properties
-
-		var _this = this,
-
-			_isContextLost = false,
-
-			// internal state cache
-
-			_currentRenderTarget = null,
-			_currentFramebuffer = null,
-			_currentMaterialId = - 1,
-			_currentGeometryProgram = '',
-
-			_currentCamera = null,
-			_currentArrayCamera = null,
-
-			_currentViewport = new Vector4(),
-			_currentScissor = new Vector4(),
-			_currentScissorTest = null,
-
-			//
-
-			_usedTextureUnits = 0,
-
-			//
-
-			_width = _canvas.width,
-			_height = _canvas.height,
-
-			_pixelRatio = 1,
-
-			_viewport = new Vector4( 0, 0, _width, _height ),
-			_scissor = new Vector4( 0, 0, _width, _height ),
-			_scissorTest = false,
-
-			// frustum
-
-			_frustum = new Frustum(),
-
-			// clipping
-
-			_clipping = new WebGLClipping(),
-			_clippingEnabled = false,
-			_localClippingEnabled = false,
-
-			// camera matrices cache
-
-			_projScreenMatrix = new Matrix4(),
-
-			_vector3 = new Vector3(),
-
-			// info
-
-			_infoMemory = {
-				geometries: 0,
-				textures: 0
-			},
-
-			_infoRender = {
-
-				frame: 0,
-				calls: 0,
-				vertices: 0,
-				faces: 0,
-				points: 0
-
-			};
-
-		this.info = {
-
-			render: _infoRender,
-			memory: _infoMemory,
-			programs: null,
-			autoReset: true,
-			reset: resetInfo
-
-		};
-
-		function resetInfo() {
-
-			_infoRender.frame ++;
-			_infoRender.calls = 0;
-			_infoRender.vertices = 0;
-			_infoRender.faces = 0;
-			_infoRender.points = 0;
-
-		}
-
-		function getTargetPixelRatio() {
-
-			return _currentRenderTarget === null ? _pixelRatio : 1;
-
-		}
-
-		// initialize
-
-		var _gl;
-
-		try {
-
-			var contextAttributes = {
-				alpha: _alpha,
-				depth: _depth,
-				stencil: _stencil,
-				antialias: _antialias,
-				premultipliedAlpha: _premultipliedAlpha,
-				preserveDrawingBuffer: _preserveDrawingBuffer,
-				powerPreference: _powerPreference
-			};
-
-			// event listeners must be registered before WebGL context is created, see #12753
-
-			_canvas.addEventListener( 'webglcontextlost', onContextLost, false );
-			_canvas.addEventListener( 'webglcontextrestored', onContextRestore, false );
-
-			_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );
-
-			if ( _gl === null ) {
-
-				if ( _canvas.getContext( 'webgl' ) !== null ) {
-
-					throw new Error( 'Error creating WebGL context with your selected attributes.' );
-
-				} else {
-
-					throw new Error( 'Error creating WebGL context.' );
-
-				}
-
-			}
-
-			// Some experimental-webgl implementations do not have getShaderPrecisionFormat
-
-			if ( _gl.getShaderPrecisionFormat === undefined ) {
-
-				_gl.getShaderPrecisionFormat = function () {
-
-					return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };
-
-				};
-
-			}
-
-		} catch ( error ) {
-
-			console.error( 'THREE.WebGLRenderer: ' + error.message );
-
-		}
-
-		var extensions, capabilities, state;
-		var properties, textures, attributes, geometries, objects;
-		var programCache, renderLists, renderStates;
-
-		var background, morphtargets, bufferRenderer, indexedBufferRenderer;
-		var spriteRenderer;
-
-		var utils;
-
-		function initGLContext() {
-
-			extensions = new WebGLExtensions( _gl );
-			extensions.get( 'WEBGL_depth_texture' );
-			extensions.get( 'OES_texture_float' );
-			extensions.get( 'OES_texture_float_linear' );
-			extensions.get( 'OES_texture_half_float' );
-			extensions.get( 'OES_texture_half_float_linear' );
-			extensions.get( 'OES_standard_derivatives' );
-			extensions.get( 'OES_element_index_uint' );
-			extensions.get( 'ANGLE_instanced_arrays' );
-
-			utils = new WebGLUtils( _gl, extensions );
-
-			capabilities = new WebGLCapabilities( _gl, extensions, parameters );
-
-			state = new WebGLState( _gl, extensions, utils );
-			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
-			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
-
-			properties = new WebGLProperties();
-			textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, utils, _infoMemory, _infoRender );
-			attributes = new WebGLAttributes( _gl );
-			geometries = new WebGLGeometries( _gl, attributes, _infoMemory );
-			objects = new WebGLObjects( geometries, _infoRender );
-			morphtargets = new WebGLMorphtargets( _gl );
-			programCache = new WebGLPrograms( _this, extensions, capabilities );
-			renderLists = new WebGLRenderLists();
-			renderStates = new WebGLRenderStates();
-
-			background = new WebGLBackground( _this, state, geometries, _premultipliedAlpha );
-
-			bufferRenderer = new WebGLBufferRenderer( _gl, extensions, _infoRender );
-			indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, _infoRender );
-
-			spriteRenderer = new WebGLSpriteRenderer( _this, _gl, state, textures, capabilities );
-
-			_this.info.programs = programCache.programs;
-
-			_this.context = _gl;
-			_this.capabilities = capabilities;
-			_this.extensions = extensions;
-			_this.properties = properties;
-			_this.renderLists = renderLists;
-			_this.state = state;
-
-		}
-
-		initGLContext();
-
-		// vr
-
-		var vr = new WebVRManager( _this );
-
-		this.vr = vr;
-
-		// shadow map
-
-		var shadowMap = new WebGLShadowMap( _this, objects, capabilities.maxTextureSize );
-
-		this.shadowMap = shadowMap;
-
-		// API
-
-		this.getContext = function () {
-
-			return _gl;
-
-		};
-
-		this.getContextAttributes = function () {
-
-			return _gl.getContextAttributes();
-
-		};
-
-		this.forceContextLoss = function () {
-
-			var extension = extensions.get( 'WEBGL_lose_context' );
-			if ( extension ) extension.loseContext();
-
-		};
-
-		this.forceContextRestore = function () {
-
-			var extension = extensions.get( 'WEBGL_lose_context' );
-			if ( extension ) extension.restoreContext();
-
-		};
-
-		this.getPixelRatio = function () {
-
-			return _pixelRatio;
-
-		};
-
-		this.setPixelRatio = function ( value ) {
-
-			if ( value === undefined ) return;
-
-			_pixelRatio = value;
-
-			this.setSize( _width, _height, false );
-
-		};
-
-		this.getSize = function () {
-
-			return {
-				width: _width,
-				height: _height
-			};
-
-		};
-
-		this.setSize = function ( width, height, updateStyle ) {
-
-			var device = vr.getDevice();
-
-			if ( device && device.isPresenting ) {
-
-				console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
-				return;
-
-			}
-
-			_width = width;
-			_height = height;
-
-			_canvas.width = width * _pixelRatio;
-			_canvas.height = height * _pixelRatio;
-
-			if ( updateStyle !== false ) {
-
-				_canvas.style.width = width + 'px';
-				_canvas.style.height = height + 'px';
-
-			}
-
-			this.setViewport( 0, 0, width, height );
-
-		};
-
-		this.getDrawingBufferSize = function () {
-
-			return {
-				width: _width * _pixelRatio,
-				height: _height * _pixelRatio
-			};
-
-		};
-
-		this.setDrawingBufferSize = function ( width, height, pixelRatio ) {
-
-			_width = width;
-			_height = height;
-
-			_pixelRatio = pixelRatio;
-
-			_canvas.width = width * pixelRatio;
-			_canvas.height = height * pixelRatio;
-
-			this.setViewport( 0, 0, width, height );
-
-		};
-
-		this.getCurrentViewport = function () {
-
-			return _currentViewport;
-
-		};
-
-		this.setViewport = function ( x, y, width, height ) {
-
-			_viewport.set( x, _height - y - height, width, height );
-			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );
-
-		};
-
-		this.setScissor = function ( x, y, width, height ) {
-
-			_scissor.set( x, _height - y - height, width, height );
-			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
-
-		};
-
-		this.setScissorTest = function ( boolean ) {
-
-			state.setScissorTest( _scissorTest = boolean );
-
-		};
-
-		// Clearing
-
-		this.getClearColor = function () {
-
-			return background.getClearColor();
-
-		};
-
-		this.setClearColor = function () {
-
-			background.setClearColor.apply( background, arguments );
-
-		};
-
-		this.getClearAlpha = function () {
-
-			return background.getClearAlpha();
-
-		};
-
-		this.setClearAlpha = function () {
-
-			background.setClearAlpha.apply( background, arguments );
-
-		};
-
-		this.clear = function ( color, depth, stencil ) {
-
-			var bits = 0;
-
-			if ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;
-			if ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;
-			if ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;
-
-			_gl.clear( bits );
-
-		};
-
-		this.clearColor = function () {
-
-			this.clear( true, false, false );
-
-		};
-
-		this.clearDepth = function () {
-
-			this.clear( false, true, false );
-
-		};
-
-		this.clearStencil = function () {
-
-			this.clear( false, false, true );
-
-		};
-
-		this.clearTarget = function ( renderTarget, color, depth, stencil ) {
-
-			this.setRenderTarget( renderTarget );
-			this.clear( color, depth, stencil );
-
-		};
-
-		//
-
-		this.dispose = function () {
-
-			_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );
-			_canvas.removeEventListener( 'webglcontextrestored', onContextRestore, false );
-
-			renderLists.dispose();
-			renderStates.dispose();
-			properties.dispose();
-			objects.dispose();
-
-			vr.dispose();
-
-			stopAnimation();
-
-		};
-
-		// Events
-
-		function onContextLost( event ) {
-
-			event.preventDefault();
-
-			console.log( 'THREE.WebGLRenderer: Context Lost.' );
-
-			_isContextLost = true;
-
-		}
-
-		function onContextRestore( /* event */ ) {
-
-			console.log( 'THREE.WebGLRenderer: Context Restored.' );
-
-			_isContextLost = false;
-
-			initGLContext();
-
-		}
-
-		function onMaterialDispose( event ) {
-
-			var material = event.target;
-
-			material.removeEventListener( 'dispose', onMaterialDispose );
-
-			deallocateMaterial( material );
-
-		}
-
-		// Buffer deallocation
-
-		function deallocateMaterial( material ) {
-
-			releaseMaterialProgramReference( material );
-
-			properties.remove( material );
-
-		}
-
-
-		function releaseMaterialProgramReference( material ) {
-
-			var programInfo = properties.get( material ).program;
-
-			material.program = undefined;
-
-			if ( programInfo !== undefined ) {
-
-				programCache.releaseProgram( programInfo );
-
-			}
-
-		}
-
-		// Buffer rendering
-
-		function renderObjectImmediate( object, program, material ) {
-
-			object.render( function ( object ) {
-
-				_this.renderBufferImmediate( object, program, material );
-
-			} );
-
-		}
-
-		this.renderBufferImmediate = function ( object, program, material ) {
-
-			state.initAttributes();
-
-			var buffers = properties.get( object );
-
-			if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();
-			if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();
-			if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();
-			if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();
-
-			var programAttributes = program.getAttributes();
-
-			if ( object.hasPositions ) {
-
-				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );
-				_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );
-
-				state.enableAttribute( programAttributes.position );
-				_gl.vertexAttribPointer( programAttributes.position, 3, _gl.FLOAT, false, 0, 0 );
-
-			}
-
-			if ( object.hasNormals ) {
-
-				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );
-
-				if ( ! material.isMeshPhongMaterial &&
-					! material.isMeshStandardMaterial &&
-					! material.isMeshNormalMaterial &&
-					material.flatShading === true ) {
-
-					for ( var i = 0, l = object.count * 3; i < l; i += 9 ) {
-
-						var array = object.normalArray;
-
-						var nx = ( array[ i + 0 ] + array[ i + 3 ] + array[ i + 6 ] ) / 3;
-						var ny = ( array[ i + 1 ] + array[ i + 4 ] + array[ i + 7 ] ) / 3;
-						var nz = ( array[ i + 2 ] + array[ i + 5 ] + array[ i + 8 ] ) / 3;
-
-						array[ i + 0 ] = nx;
-						array[ i + 1 ] = ny;
-						array[ i + 2 ] = nz;
-
-						array[ i + 3 ] = nx;
-						array[ i + 4 ] = ny;
-						array[ i + 5 ] = nz;
-
-						array[ i + 6 ] = nx;
-						array[ i + 7 ] = ny;
-						array[ i + 8 ] = nz;
-
-					}
-
-				}
-
-				_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );
-
-				state.enableAttribute( programAttributes.normal );
-
-				_gl.vertexAttribPointer( programAttributes.normal, 3, _gl.FLOAT, false, 0, 0 );
-
-			}
-
-			if ( object.hasUvs && material.map ) {
-
-				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );
-				_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );
-
-				state.enableAttribute( programAttributes.uv );
-
-				_gl.vertexAttribPointer( programAttributes.uv, 2, _gl.FLOAT, false, 0, 0 );
-
-			}
-
-			if ( object.hasColors && material.vertexColors !== NoColors ) {
-
-				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );
-				_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );
-
-				state.enableAttribute( programAttributes.color );
-
-				_gl.vertexAttribPointer( programAttributes.color, 3, _gl.FLOAT, false, 0, 0 );
-
-			}
-
-			state.disableUnusedAttributes();
-
-			_gl.drawArrays( _gl.TRIANGLES, 0, object.count );
-
-			object.count = 0;
-
-		};
-
-		this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {
-
-			var frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 );
-
-			state.setMaterial( material, frontFaceCW );
-
-			var program = setProgram( camera, fog, material, object );
-			var geometryProgram = geometry.id + '_' + program.id + '_' + ( material.wireframe === true );
-
-			var updateBuffers = false;
-
-			if ( geometryProgram !== _currentGeometryProgram ) {
-
-				_currentGeometryProgram = geometryProgram;
-				updateBuffers = true;
-
-			}
-
-			if ( object.morphTargetInfluences ) {
-
-				morphtargets.update( object, geometry, material, program );
-
-				updateBuffers = true;
-
-			}
-
-			//
-
-			var index = geometry.index;
-			var position = geometry.attributes.position;
-			var rangeFactor = 1;
-
-			if ( material.wireframe === true ) {
-
-				index = geometries.getWireframeAttribute( geometry );
-				rangeFactor = 2;
-
-			}
-
-			var attribute;
-			var renderer = bufferRenderer;
-
-			if ( index !== null ) {
-
-				attribute = attributes.get( index );
-
-				renderer = indexedBufferRenderer;
-				renderer.setIndex( attribute );
-
-			}
-
-			if ( updateBuffers ) {
-
-				setupVertexAttributes( material, program, geometry );
-
-				if ( index !== null ) {
-
-					_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, attribute.buffer );
-
-				}
-
-			}
-
-			//
-
-			var dataCount = Infinity;
-
-			if ( index !== null ) {
-
-				dataCount = index.count;
-
-			} else if ( position !== undefined ) {
-
-				dataCount = position.count;
-
-			}
-
-			var rangeStart = geometry.drawRange.start * rangeFactor;
-			var rangeCount = geometry.drawRange.count * rangeFactor;
-
-			var groupStart = group !== null ? group.start * rangeFactor : 0;
-			var groupCount = group !== null ? group.count * rangeFactor : Infinity;
-
-			var drawStart = Math.max( rangeStart, groupStart );
-			var drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;
-
-			var drawCount = Math.max( 0, drawEnd - drawStart + 1 );
-
-			if ( drawCount === 0 ) return;
-
-			//
-
-			if ( object.isMesh ) {
-
-				if ( material.wireframe === true ) {
-
-					state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
-					renderer.setMode( _gl.LINES );
-
-				} else {
-
-					switch ( object.drawMode ) {
-
-						case TrianglesDrawMode:
-							renderer.setMode( _gl.TRIANGLES );
-							break;
-
-						case TriangleStripDrawMode:
-							renderer.setMode( _gl.TRIANGLE_STRIP );
-							break;
-
-						case TriangleFanDrawMode:
-							renderer.setMode( _gl.TRIANGLE_FAN );
-							break;
-
-					}
-
-				}
-
-
-			} else if ( object.isLine ) {
-
-				var lineWidth = material.linewidth;
-
-				if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material
-
-				state.setLineWidth( lineWidth * getTargetPixelRatio() );
-
-				if ( object.isLineSegments ) {
-
-					renderer.setMode( _gl.LINES );
-
-				} else if ( object.isLineLoop ) {
-
-					renderer.setMode( _gl.LINE_LOOP );
-
-				} else {
-
-					renderer.setMode( _gl.LINE_STRIP );
-
-				}
-
-			} else if ( object.isPoints ) {
-
-				renderer.setMode( _gl.POINTS );
-
-			}
-
-			if ( geometry && geometry.isInstancedBufferGeometry ) {
-
-				if ( geometry.maxInstancedCount > 0 ) {
-
-					renderer.renderInstances( geometry, drawStart, drawCount );
-
-				}
-
-			} else {
-
-				renderer.render( drawStart, drawCount );
-
-			}
-
-		};
-
-		function setupVertexAttributes( material, program, geometry, startIndex ) {
-
-			if ( geometry && geometry.isInstancedBufferGeometry ) {
-
-				if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {
-
-					console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
-					return;
-
-				}
-
-			}
-
-			if ( startIndex === undefined ) startIndex = 0;
-
-			state.initAttributes();
-
-			var geometryAttributes = geometry.attributes;
-
-			var programAttributes = program.getAttributes();
-
-			var materialDefaultAttributeValues = material.defaultAttributeValues;
-
-			for ( var name in programAttributes ) {
-
-				var programAttribute = programAttributes[ name ];
-
-				if ( programAttribute >= 0 ) {
-
-					var geometryAttribute = geometryAttributes[ name ];
-
-					if ( geometryAttribute !== undefined ) {
-
-						var normalized = geometryAttribute.normalized;
-						var size = geometryAttribute.itemSize;
-
-						var attribute = attributes.get( geometryAttribute );
-
-						// TODO Attribute may not be available on context restore
-
-						if ( attribute === undefined ) continue;
-
-						var buffer = attribute.buffer;
-						var type = attribute.type;
-						var bytesPerElement = attribute.bytesPerElement;
-
-						if ( geometryAttribute.isInterleavedBufferAttribute ) {
-
-							var data = geometryAttribute.data;
-							var stride = data.stride;
-							var offset = geometryAttribute.offset;
-
-							if ( data && data.isInstancedInterleavedBuffer ) {
-
-								state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );
-
-								if ( geometry.maxInstancedCount === undefined ) {
-
-									geometry.maxInstancedCount = data.meshPerAttribute * data.count;
-
-								}
-
-							} else {
-
-								state.enableAttribute( programAttribute );
-
-							}
-
-							_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
-							_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, ( startIndex * stride + offset ) * bytesPerElement );
-
-						} else {
-
-							if ( geometryAttribute.isInstancedBufferAttribute ) {
-
-								state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );
-
-								if ( geometry.maxInstancedCount === undefined ) {
-
-									geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
-
-								}
-
-							} else {
-
-								state.enableAttribute( programAttribute );
-
-							}
-
-							_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
-							_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, startIndex * size * bytesPerElement );
-
-						}
-
-					} else if ( materialDefaultAttributeValues !== undefined ) {
-
-						var value = materialDefaultAttributeValues[ name ];
-
-						if ( value !== undefined ) {
-
-							switch ( value.length ) {
-
-								case 2:
-									_gl.vertexAttrib2fv( programAttribute, value );
-									break;
-
-								case 3:
-									_gl.vertexAttrib3fv( programAttribute, value );
-									break;
-
-								case 4:
-									_gl.vertexAttrib4fv( programAttribute, value );
-									break;
-
-								default:
-									_gl.vertexAttrib1fv( programAttribute, value );
-
-							}
-
-						}
-
-					}
-
-				}
-
-			}
-
-			state.disableUnusedAttributes();
-
-		}
-
-		// Compile
-
-		this.compile = function ( scene, camera ) {
-
-			currentRenderState = renderStates.get( scene, camera );
-			currentRenderState.init();
-
-			scene.traverse( function ( object ) {
-
-				if ( object.isLight ) {
-
-					currentRenderState.pushLight( object );
-
-					if ( object.castShadow ) {
-
-						currentRenderState.pushShadow( object );
-
-					}
-
-				}
-
-			} );
-
-			currentRenderState.setupLights( camera );
-
-			scene.traverse( function ( object ) {
-
-				if ( object.material ) {
-
-					if ( Array.isArray( object.material ) ) {
-
-						for ( var i = 0; i < object.material.length; i ++ ) {
-
-							initMaterial( object.material[ i ], scene.fog, object );
-
-						}
-
-					} else {
-
-						initMaterial( object.material, scene.fog, object );
-
-					}
-
-				}
-
-			} );
-
-		};
-
-		// Animation Loop
-
-		var isAnimating = false;
-		var onAnimationFrame = null;
-
-		function startAnimation() {
-
-			if ( isAnimating ) return;
-
-			requestAnimationLoopFrame();
-
-			isAnimating = true;
-
-		}
-
-		function stopAnimation() {
-
-			isAnimating = false;
-
-		}
-
-		function requestAnimationLoopFrame() {
-
-			var device = vr.getDevice();
-
-			if ( device && device.isPresenting ) {
-
-				device.requestAnimationFrame( animationLoop );
-
-			} else {
-
-				window.requestAnimationFrame( animationLoop );
-
-			}
-
-		}
-
-		function animationLoop( time ) {
-
-			if ( isAnimating === false ) return;
-
-			onAnimationFrame( time );
-
-			requestAnimationLoopFrame();
-
-		}
-
-		this.animate = function ( callback ) {
-
-			onAnimationFrame = callback;
-			onAnimationFrame !== null ? startAnimation() : stopAnimation();
-
-		};
-
-		// Rendering
-
-		this.render = function ( scene, camera, renderTarget, forceClear ) {
-
-			if ( ! ( camera && camera.isCamera ) ) {
-
-				console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
-				return;
-
-			}
-
-			if ( _isContextLost ) return;
-
-			// reset caching for this frame
-
-			_currentGeometryProgram = '';
-			_currentMaterialId = - 1;
-			_currentCamera = null;
-
-			// update scene graph
-
-			if ( scene.autoUpdate === true ) scene.updateMatrixWorld();
-
-			// update camera matrices and frustum
-
-			if ( camera.parent === null ) camera.updateMatrixWorld();
-
-			if ( vr.enabled ) {
-
-				camera = vr.getCamera( camera );
-
-			}
-
-			//
-
-			currentRenderState = renderStates.get( scene, camera );
-			currentRenderState.init();
-
-			scene.onBeforeRender( _this, scene, camera, renderTarget );
-
-			_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
-			_frustum.setFromMatrix( _projScreenMatrix );
-
-			_localClippingEnabled = this.localClippingEnabled;
-			_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );
-
-			currentRenderList = renderLists.get( scene, camera );
-			currentRenderList.init();
-
-			projectObject( scene, camera, _this.sortObjects );
-
-			if ( _this.sortObjects === true ) {
-
-				currentRenderList.sort();
-
-			}
-
-			//
-
-			if ( _clippingEnabled ) _clipping.beginShadows();
-
-			var shadowsArray = currentRenderState.state.shadowsArray;
-
-			shadowMap.render( shadowsArray, scene, camera );
-
-			currentRenderState.setupLights( camera );
-
-			if ( _clippingEnabled ) _clipping.endShadows();
-
-			//
-
-			if ( this.info.autoReset ) this.info.reset();
-
-			if ( renderTarget === undefined ) {
-
-				renderTarget = null;
-
-			}
-
-			this.setRenderTarget( renderTarget );
-
-			//
-
-			background.render( currentRenderList, scene, camera, forceClear );
-
-			// render scene
-
-			var opaqueObjects = currentRenderList.opaque;
-			var transparentObjects = currentRenderList.transparent;
-
-			if ( scene.overrideMaterial ) {
-
-				var overrideMaterial = scene.overrideMaterial;
-
-				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );
-				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );
-
-			} else {
-
-				// opaque pass (front-to-back order)
-
-				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );
-
-				// transparent pass (back-to-front order)
-
-				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );
-
-			}
-
-			// custom renderers
-
-			var spritesArray = currentRenderState.state.spritesArray;
-
-			spriteRenderer.render( spritesArray, scene, camera );
-
-			// Generate mipmap if we're using any kind of mipmap filtering
-
-			if ( renderTarget ) {
-
-				textures.updateRenderTargetMipmap( renderTarget );
-
-			}
-
-			// Ensure depth buffer writing is enabled so it can be cleared on next render
-
-			state.buffers.depth.setTest( true );
-			state.buffers.depth.setMask( true );
-			state.buffers.color.setMask( true );
-
-			state.setPolygonOffset( false );
-
-			scene.onAfterRender( _this, scene, camera );
-
-			if ( vr.enabled ) {
-
-				vr.submitFrame();
-
-			}
-
-			// _gl.finish();
-
-			currentRenderList = null;
-			currentRenderState = null;
-
-		};
-
-		/*
-		// TODO Duplicated code (Frustum)
-
-		var _sphere = new Sphere();
-
-		function isObjectViewable( object ) {
-
-			var geometry = object.geometry;
-
-			if ( geometry.boundingSphere === null )
-				geometry.computeBoundingSphere();
-
-			_sphere.copy( geometry.boundingSphere ).
-			applyMatrix4( object.matrixWorld );
-
-			return isSphereViewable( _sphere );
-
-		}
-
-		function isSpriteViewable( sprite ) {
-
-			_sphere.center.set( 0, 0, 0 );
-			_sphere.radius = 0.7071067811865476;
-			_sphere.applyMatrix4( sprite.matrixWorld );
-
-			return isSphereViewable( _sphere );
-
-		}
-
-		function isSphereViewable( sphere ) {
-
-			if ( ! _frustum.intersectsSphere( sphere ) ) return false;
-
-			var numPlanes = _clipping.numPlanes;
-
-			if ( numPlanes === 0 ) return true;
-
-			var planes = _this.clippingPlanes,
-
-				center = sphere.center,
-				negRad = - sphere.radius,
-				i = 0;
-
-			do {
-
-				// out when deeper than radius in the negative halfspace
-				if ( planes[ i ].distanceToPoint( center ) < negRad ) return false;
-
-			} while ( ++ i !== numPlanes );
-
-			return true;
-
-		}
-		*/
-
-		function projectObject( object, camera, sortObjects ) {
-
-			if ( object.visible === false ) return;
-
-			var visible = object.layers.test( camera.layers );
-
-			if ( visible ) {
-
-				if ( object.isLight ) {
-
-					currentRenderState.pushLight( object );
-
-					if ( object.castShadow ) {
-
-						currentRenderState.pushShadow( object );
-
-					}
-
-				} else if ( object.isSprite ) {
-
-					if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {
-
-						currentRenderState.pushSprite( object );
-
-					}
-
-				} else if ( object.isImmediateRenderObject ) {
-
-					if ( sortObjects ) {
-
-						_vector3.setFromMatrixPosition( object.matrixWorld )
-							.applyMatrix4( _projScreenMatrix );
-
-					}
-
-					currentRenderList.push( object, null, object.material, _vector3.z, null );
-
-				} else if ( object.isMesh || object.isLine || object.isPoints ) {
-
-					if ( object.isSkinnedMesh ) {
-
-						object.skeleton.update();
-
-					}
-
-					if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {
-
-						if ( sortObjects ) {
-
-							_vector3.setFromMatrixPosition( object.matrixWorld )
-								.applyMatrix4( _projScreenMatrix );
-
-						}
-
-						var geometry = objects.update( object );
-						var material = object.material;
-
-						if ( Array.isArray( material ) ) {
-
-							var groups = geometry.groups;
-
-							for ( var i = 0, l = groups.length; i < l; i ++ ) {
-
-								var group = groups[ i ];
-								var groupMaterial = material[ group.materialIndex ];
-
-								if ( groupMaterial && groupMaterial.visible ) {
-
-									currentRenderList.push( object, geometry, groupMaterial, _vector3.z, group );
-
-								}
-
-							}
-
-						} else if ( material.visible ) {
-
-							currentRenderList.push( object, geometry, material, _vector3.z, null );
-
-						}
-
-					}
-
-				}
-
-			}
-
-			var children = object.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				projectObject( children[ i ], camera, sortObjects );
-
-			}
-
-		}
-
-		function renderObjects( renderList, scene, camera, overrideMaterial ) {
-
-			for ( var i = 0, l = renderList.length; i < l; i ++ ) {
-
-				var renderItem = renderList[ i ];
-
-				var object = renderItem.object;
-				var geometry = renderItem.geometry;
-				var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;
-				var group = renderItem.group;
-
-				if ( camera.isArrayCamera ) {
-
-					_currentArrayCamera = camera;
-
-					var cameras = camera.cameras;
-
-					for ( var j = 0, jl = cameras.length; j < jl; j ++ ) {
-
-						var camera2 = cameras[ j ];
-
-						if ( object.layers.test( camera2.layers ) ) {
-
-							var bounds = camera2.bounds;
-
-							var x = bounds.x * _width;
-							var y = bounds.y * _height;
-							var width = bounds.z * _width;
-							var height = bounds.w * _height;
-
-							state.viewport( _currentViewport.set( x, y, width, height ).multiplyScalar( _pixelRatio ) );
-
-							renderObject( object, scene, camera2, geometry, material, group );
-
-						}
-
-					}
-
-				} else {
-
-					_currentArrayCamera = null;
-
-					renderObject( object, scene, camera, geometry, material, group );
-
-				}
-
-			}
-
-		}
-
-		function renderObject( object, scene, camera, geometry, material, group ) {
-
-			object.onBeforeRender( _this, scene, camera, geometry, material, group );
-			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );
-
-			object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
-			object.normalMatrix.getNormalMatrix( object.modelViewMatrix );
-
-			if ( object.isImmediateRenderObject ) {
-
-				var frontFaceCW = ( object.isMesh && object.matrixWorld.determinant() < 0 );
-
-				state.setMaterial( material, frontFaceCW );
-
-				var program = setProgram( camera, scene.fog, material, object );
-
-				_currentGeometryProgram = '';
-
-				renderObjectImmediate( object, program, material );
-
-			} else {
-
-				_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );
-
-			}
-
-			object.onAfterRender( _this, scene, camera, geometry, material, group );
-			currentRenderState = renderStates.get( scene, _currentArrayCamera || camera );
-
-		}
-
-		function initMaterial( material, fog, object ) {
-
-			var materialProperties = properties.get( material );
-
-			var lights = currentRenderState.state.lights;
-			var shadowsArray = currentRenderState.state.shadowsArray;
-
-			var parameters = programCache.getParameters(
-				material, lights.state, shadowsArray, fog, _clipping.numPlanes, _clipping.numIntersection, object );
-
-			var code = programCache.getProgramCode( material, parameters );
-
-			var program = materialProperties.program;
-			var programChange = true;
-
-			if ( program === undefined ) {
-
-				// new material
-				material.addEventListener( 'dispose', onMaterialDispose );
-
-			} else if ( program.code !== code ) {
-
-				// changed glsl or parameters
-				releaseMaterialProgramReference( material );
-
-			} else if ( materialProperties.lightsHash !== lights.state.hash ) {
-
-				properties.update( material, 'lightsHash', lights.state.hash );
-				programChange = false;
-
-			} else if ( parameters.shaderID !== undefined ) {
-
-				// same glsl and uniform list
-				return;
-
-			} else {
-
-				// only rebuild uniform list
-				programChange = false;
-
-			}
-
-			if ( programChange ) {
-
-				if ( parameters.shaderID ) {
-
-					var shader = ShaderLib[ parameters.shaderID ];
-
-					materialProperties.shader = {
-						name: material.type,
-						uniforms: UniformsUtils.clone( shader.uniforms ),
-						vertexShader: shader.vertexShader,
-						fragmentShader: shader.fragmentShader
-					};
-
-				} else {
-
-					materialProperties.shader = {
-						name: material.type,
-						uniforms: material.uniforms,
-						vertexShader: material.vertexShader,
-						fragmentShader: material.fragmentShader
-					};
-
-				}
-
-				material.onBeforeCompile( materialProperties.shader );
-
-				program = programCache.acquireProgram( material, materialProperties.shader, parameters, code );
-
-				materialProperties.program = program;
-				material.program = program;
-
-			}
-
-			var programAttributes = program.getAttributes();
-
-			if ( material.morphTargets ) {
-
-				material.numSupportedMorphTargets = 0;
-
-				for ( var i = 0; i < _this.maxMorphTargets; i ++ ) {
-
-					if ( programAttributes[ 'morphTarget' + i ] >= 0 ) {
-
-						material.numSupportedMorphTargets ++;
-
-					}
-
-				}
-
-			}
-
-			if ( material.morphNormals ) {
-
-				material.numSupportedMorphNormals = 0;
-
-				for ( var i = 0; i < _this.maxMorphNormals; i ++ ) {
-
-					if ( programAttributes[ 'morphNormal' + i ] >= 0 ) {
-
-						material.numSupportedMorphNormals ++;
-
-					}
-
-				}
-
-			}
-
-			var uniforms = materialProperties.shader.uniforms;
-
-			if ( ! material.isShaderMaterial &&
-				! material.isRawShaderMaterial ||
-				material.clipping === true ) {
-
-				materialProperties.numClippingPlanes = _clipping.numPlanes;
-				materialProperties.numIntersection = _clipping.numIntersection;
-				uniforms.clippingPlanes = _clipping.uniform;
-
-			}
-
-			materialProperties.fog = fog;
-
-			// store the light setup it was created for
-
-			materialProperties.lightsHash = lights.state.hash;
-
-			if ( material.lights ) {
-
-				// wire up the material to this renderer's lighting state
-
-				uniforms.ambientLightColor.value = lights.state.ambient;
-				uniforms.directionalLights.value = lights.state.directional;
-				uniforms.spotLights.value = lights.state.spot;
-				uniforms.rectAreaLights.value = lights.state.rectArea;
-				uniforms.pointLights.value = lights.state.point;
-				uniforms.hemisphereLights.value = lights.state.hemi;
-
-				uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
-				uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
-				uniforms.spotShadowMap.value = lights.state.spotShadowMap;
-				uniforms.spotShadowMatrix.value = lights.state.spotShadowMatrix;
-				uniforms.pointShadowMap.value = lights.state.pointShadowMap;
-				uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
-				// TODO (abelnation): add area lights shadow info to uniforms
-
-			}
-
-			var progUniforms = materialProperties.program.getUniforms(),
-				uniformsList =
-					WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );
-
-			materialProperties.uniformsList = uniformsList;
-
-		}
-
-		function setProgram( camera, fog, material, object ) {
-
-			_usedTextureUnits = 0;
-
-			var materialProperties = properties.get( material );
-			var lights = currentRenderState.state.lights;
-
-			if ( _clippingEnabled ) {
-
-				if ( _localClippingEnabled || camera !== _currentCamera ) {
-
-					var useCache =
-						camera === _currentCamera &&
-						material.id === _currentMaterialId;
-
-					// we might want to call this function with some ClippingGroup
-					// object instead of the material, once it becomes feasible
-					// (#8465, #8379)
-					_clipping.setState(
-						material.clippingPlanes, material.clipIntersection, material.clipShadows,
-						camera, materialProperties, useCache );
-
-				}
-
-			}
-
-			if ( material.needsUpdate === false ) {
-
-				if ( materialProperties.program === undefined ) {
-
-					material.needsUpdate = true;
-
-				} else if ( material.fog && materialProperties.fog !== fog ) {
-
-					material.needsUpdate = true;
-
-				} else if ( material.lights && materialProperties.lightsHash !== lights.state.hash ) {
-
-					material.needsUpdate = true;
-
-				} else if ( materialProperties.numClippingPlanes !== undefined &&
-					( materialProperties.numClippingPlanes !== _clipping.numPlanes ||
-					materialProperties.numIntersection !== _clipping.numIntersection ) ) {
-
-					material.needsUpdate = true;
-
-				}
-
-			}
-
-			if ( material.needsUpdate ) {
-
-				initMaterial( material, fog, object );
-				material.needsUpdate = false;
-
-			}
-
-			var refreshProgram = false;
-			var refreshMaterial = false;
-			var refreshLights = false;
-
-			var program = materialProperties.program,
-				p_uniforms = program.getUniforms(),
-				m_uniforms = materialProperties.shader.uniforms;
-
-			if ( state.useProgram( program.program ) ) {
-
-				refreshProgram = true;
-				refreshMaterial = true;
-				refreshLights = true;
-
-			}
-
-			if ( material.id !== _currentMaterialId ) {
-
-				_currentMaterialId = material.id;
-
-				refreshMaterial = true;
-
-			}
-
-			if ( refreshProgram || camera !== _currentCamera ) {
-
-				p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );
-
-				if ( capabilities.logarithmicDepthBuffer ) {
-
-					p_uniforms.setValue( _gl, 'logDepthBufFC',
-						2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );
-
-				}
-
-				// Avoid unneeded uniform updates per ArrayCamera's sub-camera
-
-				if ( _currentCamera !== ( _currentArrayCamera || camera ) ) {
-
-					_currentCamera = ( _currentArrayCamera || camera );
-
-					// lighting uniforms depend on the camera so enforce an update
-					// now, in case this material supports lights - or later, when
-					// the next material that does gets activated:
-
-					refreshMaterial = true;		// set to true on material change
-					refreshLights = true;		// remains set until update done
-
-				}
-
-				// load material specific uniforms
-				// (shader material also gets them for the sake of genericity)
-
-				if ( material.isShaderMaterial ||
-					material.isMeshPhongMaterial ||
-					material.isMeshStandardMaterial ||
-					material.envMap ) {
-
-					var uCamPos = p_uniforms.map.cameraPosition;
-
-					if ( uCamPos !== undefined ) {
-
-						uCamPos.setValue( _gl,
-							_vector3.setFromMatrixPosition( camera.matrixWorld ) );
-
-					}
-
-				}
-
-				if ( material.isMeshPhongMaterial ||
-					material.isMeshLambertMaterial ||
-					material.isMeshBasicMaterial ||
-					material.isMeshStandardMaterial ||
-					material.isShaderMaterial ||
-					material.skinning ) {
-
-					p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );
-
-				}
-
-			}
-
-			// skinning uniforms must be set even if material didn't change
-			// auto-setting of texture unit for bone texture must go before other textures
-			// not sure why, but otherwise weird things happen
-
-			if ( material.skinning ) {
-
-				p_uniforms.setOptional( _gl, object, 'bindMatrix' );
-				p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );
-
-				var skeleton = object.skeleton;
-
-				if ( skeleton ) {
-
-					var bones = skeleton.bones;
-
-					if ( capabilities.floatVertexTextures ) {
-
-						if ( skeleton.boneTexture === undefined ) {
-
-							// layout (1 matrix = 4 pixels)
-							//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
-							//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
-							//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
-							//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
-							//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
-
-
-							var size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix
-							size = _Math.ceilPowerOfTwo( size );
-							size = Math.max( size, 4 );
-
-							var boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
-							boneMatrices.set( skeleton.boneMatrices ); // copy current values
-
-							var boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );
-							boneTexture.needsUpdate = true;
-
-							skeleton.boneMatrices = boneMatrices;
-							skeleton.boneTexture = boneTexture;
-							skeleton.boneTextureSize = size;
-
-						}
-
-						p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture );
-						p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );
-
-					} else {
-
-						p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );
-
-					}
-
-				}
-
-			}
-
-			if ( refreshMaterial ) {
-
-				p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );
-				p_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );
-
-				if ( material.lights ) {
-
-					// the current material requires lighting info
-
-					// note: all lighting uniforms are always set correctly
-					// they simply reference the renderer's state for their
-					// values
-					//
-					// use the current material's .needsUpdate flags to set
-					// the GL state when required
-
-					markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );
-
-				}
-
-				// refresh uniforms common to several materials
-
-				if ( fog && material.fog ) {
-
-					refreshUniformsFog( m_uniforms, fog );
-
-				}
-
-				if ( material.isMeshBasicMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-
-				} else if ( material.isMeshLambertMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsLambert( m_uniforms, material );
-
-				} else if ( material.isMeshPhongMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-
-					if ( material.isMeshToonMaterial ) {
-
-						refreshUniformsToon( m_uniforms, material );
-
-					} else {
-
-						refreshUniformsPhong( m_uniforms, material );
-
-					}
-
-				} else if ( material.isMeshStandardMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-
-					if ( material.isMeshPhysicalMaterial ) {
-
-						refreshUniformsPhysical( m_uniforms, material );
-
-					} else {
-
-						refreshUniformsStandard( m_uniforms, material );
-
-					}
-
-				} else if ( material.isMeshDepthMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsDepth( m_uniforms, material );
-
-				} else if ( material.isMeshDistanceMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsDistance( m_uniforms, material );
-
-				} else if ( material.isMeshNormalMaterial ) {
-
-					refreshUniformsCommon( m_uniforms, material );
-					refreshUniformsNormal( m_uniforms, material );
-
-				} else if ( material.isLineBasicMaterial ) {
-
-					refreshUniformsLine( m_uniforms, material );
-
-					if ( material.isLineDashedMaterial ) {
-
-						refreshUniformsDash( m_uniforms, material );
-
-					}
-
-				} else if ( material.isPointsMaterial ) {
-
-					refreshUniformsPoints( m_uniforms, material );
-
-				} else if ( material.isShadowMaterial ) {
-
-					m_uniforms.color.value = material.color;
-					m_uniforms.opacity.value = material.opacity;
-
-				}
-
-				// RectAreaLight Texture
-				// TODO (mrdoob): Find a nicer implementation
-
-				if ( m_uniforms.ltc_1 !== undefined ) m_uniforms.ltc_1.value = UniformsLib.LTC_1;
-				if ( m_uniforms.ltc_2 !== undefined ) m_uniforms.ltc_2.value = UniformsLib.LTC_2;
-
-				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );
-
-			}
-
-			if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {
-
-				WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );
-				material.uniformsNeedUpdate = false;
-
-			}
-
-			// common matrices
-
-			p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
-			p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
-			p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );
-
-			return program;
-
-		}
-
-		// Uniforms (refresh uniforms objects)
-
-		function refreshUniformsCommon( uniforms, material ) {
-
-			uniforms.opacity.value = material.opacity;
-
-			if ( material.color ) {
-
-				uniforms.diffuse.value = material.color;
-
-			}
-
-			if ( material.emissive ) {
-
-				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
-
-			}
-
-			if ( material.map ) {
-
-				uniforms.map.value = material.map;
-
-			}
-
-			if ( material.alphaMap ) {
-
-				uniforms.alphaMap.value = material.alphaMap;
-
-			}
-
-			if ( material.specularMap ) {
-
-				uniforms.specularMap.value = material.specularMap;
-
-			}
-
-			if ( material.envMap ) {
-
-				uniforms.envMap.value = material.envMap;
-
-				// don't flip CubeTexture envMaps, flip everything else:
-				//  WebGLRenderTargetCube will be flipped for backwards compatibility
-				//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
-				// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
-				uniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1;
-
-				uniforms.reflectivity.value = material.reflectivity;
-				uniforms.refractionRatio.value = material.refractionRatio;
-
-			}
-
-			if ( material.lightMap ) {
-
-				uniforms.lightMap.value = material.lightMap;
-				uniforms.lightMapIntensity.value = material.lightMapIntensity;
-
-			}
-
-			if ( material.aoMap ) {
-
-				uniforms.aoMap.value = material.aoMap;
-				uniforms.aoMapIntensity.value = material.aoMapIntensity;
-
-			}
-
-			// uv repeat and offset setting priorities
-			// 1. color map
-			// 2. specular map
-			// 3. normal map
-			// 4. bump map
-			// 5. alpha map
-			// 6. emissive map
-
-			var uvScaleMap;
-
-			if ( material.map ) {
-
-				uvScaleMap = material.map;
-
-			} else if ( material.specularMap ) {
-
-				uvScaleMap = material.specularMap;
-
-			} else if ( material.displacementMap ) {
-
-				uvScaleMap = material.displacementMap;
-
-			} else if ( material.normalMap ) {
-
-				uvScaleMap = material.normalMap;
-
-			} else if ( material.bumpMap ) {
-
-				uvScaleMap = material.bumpMap;
-
-			} else if ( material.roughnessMap ) {
-
-				uvScaleMap = material.roughnessMap;
-
-			} else if ( material.metalnessMap ) {
-
-				uvScaleMap = material.metalnessMap;
-
-			} else if ( material.alphaMap ) {
-
-				uvScaleMap = material.alphaMap;
-
-			} else if ( material.emissiveMap ) {
-
-				uvScaleMap = material.emissiveMap;
-
-			}
-
-			if ( uvScaleMap !== undefined ) {
-
-				// backwards compatibility
-				if ( uvScaleMap.isWebGLRenderTarget ) {
-
-					uvScaleMap = uvScaleMap.texture;
-
-				}
-
-				if ( uvScaleMap.matrixAutoUpdate === true ) {
-
-					var offset = uvScaleMap.offset;
-					var repeat = uvScaleMap.repeat;
-					var rotation = uvScaleMap.rotation;
-					var center = uvScaleMap.center;
-
-					uvScaleMap.matrix.setUvTransform( offset.x, offset.y, repeat.x, repeat.y, rotation, center.x, center.y );
-
-				}
-
-				uniforms.uvTransform.value.copy( uvScaleMap.matrix );
-
-			}
-
-		}
-
-		function refreshUniformsLine( uniforms, material ) {
-
-			uniforms.diffuse.value = material.color;
-			uniforms.opacity.value = material.opacity;
-
-		}
-
-		function refreshUniformsDash( uniforms, material ) {
-
-			uniforms.dashSize.value = material.dashSize;
-			uniforms.totalSize.value = material.dashSize + material.gapSize;
-			uniforms.scale.value = material.scale;
-
-		}
-
-		function refreshUniformsPoints( uniforms, material ) {
-
-			uniforms.diffuse.value = material.color;
-			uniforms.opacity.value = material.opacity;
-			uniforms.size.value = material.size * _pixelRatio;
-			uniforms.scale.value = _height * 0.5;
-
-			uniforms.map.value = material.map;
-
-			if ( material.map !== null ) {
-
-				if ( material.map.matrixAutoUpdate === true ) {
-
-					var offset = material.map.offset;
-					var repeat = material.map.repeat;
-					var rotation = material.map.rotation;
-					var center = material.map.center;
-
-					material.map.matrix.setUvTransform( offset.x, offset.y, repeat.x, repeat.y, rotation, center.x, center.y );
-
-				}
-
-				uniforms.uvTransform.value.copy( material.map.matrix );
-
-			}
-
-		}
-
-		function refreshUniformsFog( uniforms, fog ) {
-
-			uniforms.fogColor.value = fog.color;
-
-			if ( fog.isFog ) {
-
-				uniforms.fogNear.value = fog.near;
-				uniforms.fogFar.value = fog.far;
-
-			} else if ( fog.isFogExp2 ) {
-
-				uniforms.fogDensity.value = fog.density;
-
-			}
-
-		}
-
-		function refreshUniformsLambert( uniforms, material ) {
-
-			if ( material.emissiveMap ) {
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-
-			}
-
-		}
-
-		function refreshUniformsPhong( uniforms, material ) {
-
-			uniforms.specular.value = material.specular;
-			uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )
-
-			if ( material.emissiveMap ) {
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-
-			}
-
-			if ( material.bumpMap ) {
-
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.bumpScale.value = material.bumpScale;
-
-			}
-
-			if ( material.normalMap ) {
-
-				uniforms.normalMap.value = material.normalMap;
-				uniforms.normalScale.value.copy( material.normalScale );
-
-			}
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-		}
-
-		function refreshUniformsToon( uniforms, material ) {
-
-			refreshUniformsPhong( uniforms, material );
-
-			if ( material.gradientMap ) {
-
-				uniforms.gradientMap.value = material.gradientMap;
-
-			}
-
-		}
-
-		function refreshUniformsStandard( uniforms, material ) {
-
-			uniforms.roughness.value = material.roughness;
-			uniforms.metalness.value = material.metalness;
-
-			if ( material.roughnessMap ) {
-
-				uniforms.roughnessMap.value = material.roughnessMap;
-
-			}
-
-			if ( material.metalnessMap ) {
-
-				uniforms.metalnessMap.value = material.metalnessMap;
-
-			}
-
-			if ( material.emissiveMap ) {
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-
-			}
-
-			if ( material.bumpMap ) {
-
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.bumpScale.value = material.bumpScale;
-
-			}
-
-			if ( material.normalMap ) {
-
-				uniforms.normalMap.value = material.normalMap;
-				uniforms.normalScale.value.copy( material.normalScale );
-
-			}
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-			if ( material.envMap ) {
-
-				//uniforms.envMap.value = material.envMap; // part of uniforms common
-				uniforms.envMapIntensity.value = material.envMapIntensity;
-
-			}
-
-		}
-
-		function refreshUniformsPhysical( uniforms, material ) {
-
-			uniforms.clearCoat.value = material.clearCoat;
-			uniforms.clearCoatRoughness.value = material.clearCoatRoughness;
-
-			refreshUniformsStandard( uniforms, material );
-
-		}
-
-		function refreshUniformsDepth( uniforms, material ) {
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-		}
-
-		function refreshUniformsDistance( uniforms, material ) {
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-			uniforms.referencePosition.value.copy( material.referencePosition );
-			uniforms.nearDistance.value = material.nearDistance;
-			uniforms.farDistance.value = material.farDistance;
-
-		}
-
-		function refreshUniformsNormal( uniforms, material ) {
-
-			if ( material.bumpMap ) {
-
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.bumpScale.value = material.bumpScale;
-
-			}
-
-			if ( material.normalMap ) {
-
-				uniforms.normalMap.value = material.normalMap;
-				uniforms.normalScale.value.copy( material.normalScale );
-
-			}
-
-			if ( material.displacementMap ) {
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-			}
-
-		}
-
-		// If uniforms are marked as clean, they don't need to be loaded to the GPU.
-
-		function markUniformsLightsNeedsUpdate( uniforms, value ) {
-
-			uniforms.ambientLightColor.needsUpdate = value;
-
-			uniforms.directionalLights.needsUpdate = value;
-			uniforms.pointLights.needsUpdate = value;
-			uniforms.spotLights.needsUpdate = value;
-			uniforms.rectAreaLights.needsUpdate = value;
-			uniforms.hemisphereLights.needsUpdate = value;
-
-		}
-
-		// Textures
-
-		function allocTextureUnit() {
-
-			var textureUnit = _usedTextureUnits;
-
-			if ( textureUnit >= capabilities.maxTextures ) {
-
-				console.warn( 'THREE.WebGLRenderer: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );
-
-			}
-
-			_usedTextureUnits += 1;
-
-			return textureUnit;
-
-		}
-
-		this.allocTextureUnit = allocTextureUnit;
-
-		// this.setTexture2D = setTexture2D;
-		this.setTexture2D = ( function () {
-
-			var warned = false;
-
-			// backwards compatibility: peel texture.texture
-			return function setTexture2D( texture, slot ) {
-
-				if ( texture && texture.isWebGLRenderTarget ) {
-
-					if ( ! warned ) {
-
-						console.warn( "THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead." );
-						warned = true;
-
-					}
-
-					texture = texture.texture;
-
-				}
-
-				textures.setTexture2D( texture, slot );
-
-			};
-
-		}() );
-
-		this.setTexture = ( function () {
-
-			var warned = false;
-
-			return function setTexture( texture, slot ) {
-
-				if ( ! warned ) {
-
-					console.warn( "THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead." );
-					warned = true;
-
-				}
-
-				textures.setTexture2D( texture, slot );
-
-			};
-
-		}() );
-
-		this.setTextureCube = ( function () {
-
-			var warned = false;
-
-			return function setTextureCube( texture, slot ) {
-
-				// backwards compatibility: peel texture.texture
-				if ( texture && texture.isWebGLRenderTargetCube ) {
-
-					if ( ! warned ) {
-
-						console.warn( "THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead." );
-						warned = true;
-
-					}
-
-					texture = texture.texture;
-
-				}
-
-				// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture
-				// TODO: unify these code paths
-				if ( ( texture && texture.isCubeTexture ) ||
-					( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {
-
-					// CompressedTexture can have Array in image :/
-
-					// this function alone should take care of cube textures
-					textures.setTextureCube( texture, slot );
-
-				} else {
-
-					// assumed: texture property of THREE.WebGLRenderTargetCube
-
-					textures.setTextureCubeDynamic( texture, slot );
-
-				}
-
-			};
-
-		}() );
-
-		this.getRenderTarget = function () {
-
-			return _currentRenderTarget;
-
-		};
-
-		this.setRenderTarget = function ( renderTarget ) {
-
-			_currentRenderTarget = renderTarget;
-
-			if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {
-
-				textures.setupRenderTarget( renderTarget );
-
-			}
-
-			var framebuffer = null;
-			var isCube = false;
-
-			if ( renderTarget ) {
-
-				var __webglFramebuffer = properties.get( renderTarget ).__webglFramebuffer;
-
-				if ( renderTarget.isWebGLRenderTargetCube ) {
-
-					framebuffer = __webglFramebuffer[ renderTarget.activeCubeFace ];
-					isCube = true;
-
-				} else {
-
-					framebuffer = __webglFramebuffer;
-
-				}
-
-				_currentViewport.copy( renderTarget.viewport );
-				_currentScissor.copy( renderTarget.scissor );
-				_currentScissorTest = renderTarget.scissorTest;
-
-			} else {
-
-				_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );
-				_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );
-				_currentScissorTest = _scissorTest;
-
-			}
-
-			if ( _currentFramebuffer !== framebuffer ) {
-
-				_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
-				_currentFramebuffer = framebuffer;
-
-			}
-
-			state.viewport( _currentViewport );
-			state.scissor( _currentScissor );
-			state.setScissorTest( _currentScissorTest );
-
-			if ( isCube ) {
-
-				var textureProperties = properties.get( renderTarget.texture );
-				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel );
-
-			}
-
-		};
-
-		this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {
-
-			if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {
-
-				console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
-				return;
-
-			}
-
-			var framebuffer = properties.get( renderTarget ).__webglFramebuffer;
-
-			if ( framebuffer ) {
-
-				var restore = false;
-
-				if ( framebuffer !== _currentFramebuffer ) {
-
-					_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
-
-					restore = true;
-
-				}
-
-				try {
-
-					var texture = renderTarget.texture;
-					var textureFormat = texture.format;
-					var textureType = texture.type;
-
-					if ( textureFormat !== RGBAFormat && utils.convert( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {
-
-						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
-						return;
-
-					}
-
-					if ( textureType !== UnsignedByteType && utils.convert( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513)
-						! ( textureType === FloatType && ( extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
-						! ( textureType === HalfFloatType && extensions.get( 'EXT_color_buffer_half_float' ) ) ) {
-
-						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
-						return;
-
-					}
-
-					if ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {
-
-						// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
-
-						if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {
-
-							_gl.readPixels( x, y, width, height, utils.convert( textureFormat ), utils.convert( textureType ), buffer );
-
-						}
-
-					} else {
-
-						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );
-
-					}
-
-				} finally {
-
-					if ( restore ) {
-
-						_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );
-
-					}
-
-				}
-
-			}
-
-		};
-
-		this.copyFramebufferToTexture = function ( position, texture, level ) {
-
-			var width = texture.image.width;
-			var height = texture.image.height;
-			var internalFormat = utils.convert( texture.format );
-
-			this.setTexture2D( texture, 0 );
-
-			_gl.copyTexImage2D( _gl.TEXTURE_2D, level || 0, internalFormat, position.x, position.y, width, height, 0 );
-
-		};
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function FogExp2( color, density ) {
-
-		this.name = '';
-
-		this.color = new Color( color );
-		this.density = ( density !== undefined ) ? density : 0.00025;
-
-	}
-
-	FogExp2.prototype.isFogExp2 = true;
-
-	FogExp2.prototype.clone = function () {
-
-		return new FogExp2( this.color.getHex(), this.density );
-
-	};
-
-	FogExp2.prototype.toJSON = function ( /* meta */ ) {
-
-		return {
-			type: 'FogExp2',
-			color: this.color.getHex(),
-			density: this.density
-		};
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Fog( color, near, far ) {
-
-		this.name = '';
-
-		this.color = new Color( color );
-
-		this.near = ( near !== undefined ) ? near : 1;
-		this.far = ( far !== undefined ) ? far : 1000;
-
-	}
-
-	Fog.prototype.isFog = true;
-
-	Fog.prototype.clone = function () {
-
-		return new Fog( this.color.getHex(), this.near, this.far );
-
-	};
-
-	Fog.prototype.toJSON = function ( /* meta */ ) {
-
-		return {
-			type: 'Fog',
-			color: this.color.getHex(),
-			near: this.near,
-			far: this.far
-		};
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Scene() {
-
-		Object3D.call( this );
-
-		this.type = 'Scene';
-
-		this.background = null;
-		this.fog = null;
-		this.overrideMaterial = null;
-
-		this.autoUpdate = true; // checked by the renderer
-
-	}
-
-	Scene.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Scene,
-
-		copy: function ( source, recursive ) {
-
-			Object3D.prototype.copy.call( this, source, recursive );
-
-			if ( source.background !== null ) this.background = source.background.clone();
-			if ( source.fog !== null ) this.fog = source.fog.clone();
-			if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();
-
-			this.autoUpdate = source.autoUpdate;
-			this.matrixAutoUpdate = source.matrixAutoUpdate;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			if ( this.background !== null ) data.object.background = this.background.toJSON( meta );
-			if ( this.fog !== null ) data.object.fog = this.fog.toJSON();
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *	uvOffset: new THREE.Vector2(),
-	 *	uvScale: new THREE.Vector2()
-	 * }
-	 */
-
-	function SpriteMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'SpriteMaterial';
-
-		this.color = new Color( 0xffffff );
-		this.map = null;
-
-		this.rotation = 0;
-
-		this.fog = false;
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	SpriteMaterial.prototype = Object.create( Material.prototype );
-	SpriteMaterial.prototype.constructor = SpriteMaterial;
-	SpriteMaterial.prototype.isSpriteMaterial = true;
-
-	SpriteMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-		this.map = source.map;
-
-		this.rotation = source.rotation;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Sprite( material ) {
-
-		Object3D.call( this );
-
-		this.type = 'Sprite';
-
-		this.material = ( material !== undefined ) ? material : new SpriteMaterial();
-
-		this.center = new Vector2( 0.5, 0.5 );
-
-	}
-
-	Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Sprite,
-
-		isSprite: true,
-
-		raycast: ( function () {
-
-			var intersectPoint = new Vector3();
-			var worldPosition = new Vector3();
-			var worldScale = new Vector3();
-
-			return function raycast( raycaster, intersects ) {
-
-				worldPosition.setFromMatrixPosition( this.matrixWorld );
-				raycaster.ray.closestPointToPoint( worldPosition, intersectPoint );
-
-				worldScale.setFromMatrixScale( this.matrixWorld );
-				var guessSizeSq = worldScale.x * worldScale.y / 4;
-
-				if ( worldPosition.distanceToSquared( intersectPoint ) > guessSizeSq ) return;
-
-				var distance = raycaster.ray.origin.distanceTo( intersectPoint );
-
-				if ( distance < raycaster.near || distance > raycaster.far ) return;
-
-				intersects.push( {
-
-					distance: distance,
-					point: intersectPoint.clone(),
-					face: null,
-					object: this
-
-				} );
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.material ).copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source );
-
-			if ( source.center !== undefined ) this.center.copy( source.center );
-
-			return this;
-
-		}
-
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LOD() {
-
-		Object3D.call( this );
-
-		this.type = 'LOD';
-
-		Object.defineProperties( this, {
-			levels: {
-				enumerable: true,
-				value: []
-			}
-		} );
-
-	}
-
-	LOD.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: LOD,
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source, false );
-
-			var levels = source.levels;
-
-			for ( var i = 0, l = levels.length; i < l; i ++ ) {
-
-				var level = levels[ i ];
-
-				this.addLevel( level.object.clone(), level.distance );
-
-			}
-
-			return this;
-
-		},
-
-		addLevel: function ( object, distance ) {
-
-			if ( distance === undefined ) distance = 0;
-
-			distance = Math.abs( distance );
-
-			var levels = this.levels;
-
-			for ( var l = 0; l < levels.length; l ++ ) {
-
-				if ( distance < levels[ l ].distance ) {
-
-					break;
-
-				}
-
-			}
-
-			levels.splice( l, 0, { distance: distance, object: object } );
-
-			this.add( object );
-
-		},
-
-		getObjectForDistance: function ( distance ) {
-
-			var levels = this.levels;
-
-			for ( var i = 1, l = levels.length; i < l; i ++ ) {
-
-				if ( distance < levels[ i ].distance ) {
-
-					break;
-
-				}
-
-			}
-
-			return levels[ i - 1 ].object;
-
-		},
-
-		raycast: ( function () {
-
-			var matrixPosition = new Vector3();
-
-			return function raycast( raycaster, intersects ) {
-
-				matrixPosition.setFromMatrixPosition( this.matrixWorld );
-
-				var distance = raycaster.ray.origin.distanceTo( matrixPosition );
-
-				this.getObjectForDistance( distance ).raycast( raycaster, intersects );
-
-			};
-
-		}() ),
-
-		update: function () {
-
-			var v1 = new Vector3();
-			var v2 = new Vector3();
-
-			return function update( camera ) {
-
-				var levels = this.levels;
-
-				if ( levels.length > 1 ) {
-
-					v1.setFromMatrixPosition( camera.matrixWorld );
-					v2.setFromMatrixPosition( this.matrixWorld );
-
-					var distance = v1.distanceTo( v2 );
-
-					levels[ 0 ].object.visible = true;
-
-					for ( var i = 1, l = levels.length; i < l; i ++ ) {
-
-						if ( distance >= levels[ i ].distance ) {
-
-							levels[ i - 1 ].object.visible = false;
-							levels[ i ].object.visible = true;
-
-						} else {
-
-							break;
-
-						}
-
-					}
-
-					for ( ; i < l; i ++ ) {
-
-						levels[ i ].object.visible = false;
-
-					}
-
-				}
-
-			};
-
-		}(),
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.levels = [];
-
-			var levels = this.levels;
-
-			for ( var i = 0, l = levels.length; i < l; i ++ ) {
-
-				var level = levels[ i ];
-
-				data.object.levels.push( {
-					object: level.object.uuid,
-					distance: level.distance
-				} );
-
-			}
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author michael guerrero / http://realitymeltdown.com
-	 * @author ikerr / http://verold.com
-	 */
-
-	function Skeleton( bones, boneInverses ) {
-
-		// copy the bone array
-
-		bones = bones || [];
-
-		this.bones = bones.slice( 0 );
-		this.boneMatrices = new Float32Array( this.bones.length * 16 );
-
-		// use the supplied bone inverses or calculate the inverses
-
-		if ( boneInverses === undefined ) {
-
-			this.calculateInverses();
-
-		} else {
-
-			if ( this.bones.length === boneInverses.length ) {
-
-				this.boneInverses = boneInverses.slice( 0 );
-
-			} else {
-
-				console.warn( 'THREE.Skeleton boneInverses is the wrong length.' );
-
-				this.boneInverses = [];
-
-				for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
-
-					this.boneInverses.push( new Matrix4() );
-
-				}
-
-			}
-
-		}
-
-	}
-
-	Object.assign( Skeleton.prototype, {
-
-		calculateInverses: function () {
-
-			this.boneInverses = [];
-
-			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				var inverse = new Matrix4();
-
-				if ( this.bones[ i ] ) {
-
-					inverse.getInverse( this.bones[ i ].matrixWorld );
-
-				}
-
-				this.boneInverses.push( inverse );
-
-			}
-
-		},
-
-		pose: function () {
-
-			var bone, i, il;
-
-			// recover the bind-time world matrices
-
-			for ( i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				bone = this.bones[ i ];
-
-				if ( bone ) {
-
-					bone.matrixWorld.getInverse( this.boneInverses[ i ] );
-
-				}
-
-			}
-
-			// compute the local matrices, positions, rotations and scales
-
-			for ( i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				bone = this.bones[ i ];
-
-				if ( bone ) {
-
-					if ( bone.parent && bone.parent.isBone ) {
-
-						bone.matrix.getInverse( bone.parent.matrixWorld );
-						bone.matrix.multiply( bone.matrixWorld );
-
-					} else {
-
-						bone.matrix.copy( bone.matrixWorld );
-
-					}
-
-					bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );
-
-				}
-
-			}
-
-		},
-
-		update: ( function () {
-
-			var offsetMatrix = new Matrix4();
-			var identityMatrix = new Matrix4();
-
-			return function update() {
-
-				var bones = this.bones;
-				var boneInverses = this.boneInverses;
-				var boneMatrices = this.boneMatrices;
-				var boneTexture = this.boneTexture;
-
-				// flatten bone matrices to array
-
-				for ( var i = 0, il = bones.length; i < il; i ++ ) {
-
-					// compute the offset between the current and the original transform
-
-					var matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;
-
-					offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
-					offsetMatrix.toArray( boneMatrices, i * 16 );
-
-				}
-
-				if ( boneTexture !== undefined ) {
-
-					boneTexture.needsUpdate = true;
-
-				}
-
-			};
-
-		} )(),
-
-		clone: function () {
-
-			return new Skeleton( this.bones, this.boneInverses );
-
-		},
-
-		getBoneByName: function ( name ) {
-
-			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {
-
-				var bone = this.bones[ i ];
-
-				if ( bone.name === name ) {
-
-					return bone;
-
-				}
-
-			}
-
-			return undefined;
-
-		}
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author ikerr / http://verold.com
-	 */
-
-	function Bone() {
-
-		Object3D.call( this );
-
-		this.type = 'Bone';
-
-	}
-
-	Bone.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Bone,
-
-		isBone: true
-
-	} );
-
-	/**
-	 * @author mikael emtinger / http://gomo.se/
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author ikerr / http://verold.com
-	 */
-
-	function SkinnedMesh( geometry, material ) {
-
-		Mesh.call( this, geometry, material );
-
-		this.type = 'SkinnedMesh';
-
-		this.bindMode = 'attached';
-		this.bindMatrix = new Matrix4();
-		this.bindMatrixInverse = new Matrix4();
-
-		var bones = this.initBones();
-		var skeleton = new Skeleton( bones );
-
-		this.bind( skeleton, this.matrixWorld );
-
-		this.normalizeSkinWeights();
-
-	}
-
-	SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {
-
-		constructor: SkinnedMesh,
-
-		isSkinnedMesh: true,
-
-		initBones: function () {
-
-			var bones = [], bone, gbone;
-			var i, il;
-
-			if ( this.geometry && this.geometry.bones !== undefined ) {
-
-				// first, create array of 'Bone' objects from geometry data
-
-				for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {
-
-					gbone = this.geometry.bones[ i ];
-
-					// create new 'Bone' object
-
-					bone = new Bone();
-					bones.push( bone );
-
-					// apply values
-
-					bone.name = gbone.name;
-					bone.position.fromArray( gbone.pos );
-					bone.quaternion.fromArray( gbone.rotq );
-					if ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );
-
-				}
-
-				// second, create bone hierarchy
-
-				for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {
-
-					gbone = this.geometry.bones[ i ];
-
-					if ( ( gbone.parent !== - 1 ) && ( gbone.parent !== null ) && ( bones[ gbone.parent ] !== undefined ) ) {
-
-						// subsequent bones in the hierarchy
-
-						bones[ gbone.parent ].add( bones[ i ] );
-
-					} else {
-
-						// topmost bone, immediate child of the skinned mesh
-
-						this.add( bones[ i ] );
-
-					}
-
-				}
-
-			}
-
-			// now the bones are part of the scene graph and children of the skinned mesh.
-			// let's update the corresponding matrices
-
-			this.updateMatrixWorld( true );
-
-			return bones;
-
-		},
-
-		bind: function ( skeleton, bindMatrix ) {
-
-			this.skeleton = skeleton;
-
-			if ( bindMatrix === undefined ) {
-
-				this.updateMatrixWorld( true );
-
-				this.skeleton.calculateInverses();
-
-				bindMatrix = this.matrixWorld;
-
-			}
-
-			this.bindMatrix.copy( bindMatrix );
-			this.bindMatrixInverse.getInverse( bindMatrix );
-
-		},
-
-		pose: function () {
-
-			this.skeleton.pose();
-
-		},
-
-		normalizeSkinWeights: function () {
-
-			var scale, i;
-
-			if ( this.geometry && this.geometry.isGeometry ) {
-
-				for ( i = 0; i < this.geometry.skinWeights.length; i ++ ) {
-
-					var sw = this.geometry.skinWeights[ i ];
-
-					scale = 1.0 / sw.manhattanLength();
-
-					if ( scale !== Infinity ) {
-
-						sw.multiplyScalar( scale );
-
-					} else {
-
-						sw.set( 1, 0, 0, 0 ); // do something reasonable
-
-					}
-
-				}
-
-			} else if ( this.geometry && this.geometry.isBufferGeometry ) {
-
-				var vec = new Vector4();
-
-				var skinWeight = this.geometry.attributes.skinWeight;
-
-				for ( i = 0; i < skinWeight.count; i ++ ) {
-
-					vec.x = skinWeight.getX( i );
-					vec.y = skinWeight.getY( i );
-					vec.z = skinWeight.getZ( i );
-					vec.w = skinWeight.getW( i );
-
-					scale = 1.0 / vec.manhattanLength();
-
-					if ( scale !== Infinity ) {
-
-						vec.multiplyScalar( scale );
-
-					} else {
-
-						vec.set( 1, 0, 0, 0 ); // do something reasonable
-
-					}
-
-					skinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );
-
-				}
-
-			}
-
-		},
-
-		updateMatrixWorld: function ( force ) {
-
-			Mesh.prototype.updateMatrixWorld.call( this, force );
-
-			if ( this.bindMode === 'attached' ) {
-
-				this.bindMatrixInverse.getInverse( this.matrixWorld );
-
-			} else if ( this.bindMode === 'detached' ) {
-
-				this.bindMatrixInverse.getInverse( this.bindMatrix );
-
-			} else {
-
-				console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );
-
-			}
-
-		},
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *
-	 *  linewidth: <float>,
-	 *  linecap: "round",
-	 *  linejoin: "round"
-	 * }
-	 */
-
-	function LineBasicMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'LineBasicMaterial';
-
-		this.color = new Color( 0xffffff );
-
-		this.linewidth = 1;
-		this.linecap = 'round';
-		this.linejoin = 'round';
-
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	LineBasicMaterial.prototype = Object.create( Material.prototype );
-	LineBasicMaterial.prototype.constructor = LineBasicMaterial;
-
-	LineBasicMaterial.prototype.isLineBasicMaterial = true;
-
-	LineBasicMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.linewidth = source.linewidth;
-		this.linecap = source.linecap;
-		this.linejoin = source.linejoin;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Line( geometry, material, mode ) {
-
-		if ( mode === 1 ) {
-
-			console.warn( 'THREE.Line: parameter THREE.LinePieces no longer supported. Created THREE.LineSegments instead.' );
-			return new LineSegments( geometry, material );
-
-		}
-
-		Object3D.call( this );
-
-		this.type = 'Line';
-
-		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
-		this.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );
-
-	}
-
-	Line.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Line,
-
-		isLine: true,
-
-		computeLineDistances: ( function () {
-
-			var start = new Vector3();
-			var end = new Vector3();
-
-			return function computeLineDistances() {
-
-				var geometry = this.geometry;
-
-				if ( geometry.isBufferGeometry ) {
-
-					// we assume non-indexed geometry
-
-					if ( geometry.index === null ) {
-
-						var positionAttribute = geometry.attributes.position;
-						var lineDistances = [ 0 ];
-
-						for ( var i = 1, l = positionAttribute.count; i < l; i ++ ) {
-
-							start.fromBufferAttribute( positionAttribute, i - 1 );
-							end.fromBufferAttribute( positionAttribute, i );
-
-							lineDistances[ i ] = lineDistances[ i - 1 ];
-							lineDistances[ i ] += start.distanceTo( end );
-
-						}
-
-						geometry.addAttribute( 'lineDistance', new THREE.Float32BufferAttribute( lineDistances, 1 ) );
-
-					} else {
-
-						console.warn( 'THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var vertices = geometry.vertices;
-					var lineDistances = geometry.lineDistances;
-
-					lineDistances[ 0 ] = 0;
-
-					for ( var i = 1, l = vertices.length; i < l; i ++ ) {
-
-						lineDistances[ i ] = lineDistances[ i - 1 ];
-						lineDistances[ i ] += vertices[ i - 1 ].distanceTo( vertices[ i ] );
-
-					}
-
-				}
-
-				return this;
-
-			};
-
-		}() ),
-
-		raycast: ( function () {
-
-			var inverseMatrix = new Matrix4();
-			var ray = new Ray();
-			var sphere = new Sphere();
-
-			return function raycast( raycaster, intersects ) {
-
-				var precision = raycaster.linePrecision;
-				var precisionSq = precision * precision;
-
-				var geometry = this.geometry;
-				var matrixWorld = this.matrixWorld;
-
-				// Checking boundingSphere distance to ray
-
-				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere );
-				sphere.applyMatrix4( matrixWorld );
-
-				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
-
-				//
-
-				inverseMatrix.getInverse( matrixWorld );
-				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
-
-				var vStart = new Vector3();
-				var vEnd = new Vector3();
-				var interSegment = new Vector3();
-				var interRay = new Vector3();
-				var step = ( this && this.isLineSegments ) ? 2 : 1;
-
-				if ( geometry.isBufferGeometry ) {
-
-					var index = geometry.index;
-					var attributes = geometry.attributes;
-					var positions = attributes.position.array;
-
-					if ( index !== null ) {
-
-						var indices = index.array;
-
-						for ( var i = 0, l = indices.length - 1; i < l; i += step ) {
-
-							var a = indices[ i ];
-							var b = indices[ i + 1 ];
-
-							vStart.fromArray( positions, a * 3 );
-							vEnd.fromArray( positions, b * 3 );
-
-							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
-
-							if ( distSq > precisionSq ) continue;
-
-							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
-
-							var distance = raycaster.ray.origin.distanceTo( interRay );
-
-							if ( distance < raycaster.near || distance > raycaster.far ) continue;
-
-							intersects.push( {
-
-								distance: distance,
-								// What do we want? intersection point on the ray or on the segment??
-								// point: raycaster.ray.at( distance ),
-								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
-								index: i,
-								face: null,
-								faceIndex: null,
-								object: this
-
-							} );
-
-						}
-
-					} else {
-
-						for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {
-
-							vStart.fromArray( positions, 3 * i );
-							vEnd.fromArray( positions, 3 * i + 3 );
-
-							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );
-
-							if ( distSq > precisionSq ) continue;
-
-							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
-
-							var distance = raycaster.ray.origin.distanceTo( interRay );
-
-							if ( distance < raycaster.near || distance > raycaster.far ) continue;
-
-							intersects.push( {
-
-								distance: distance,
-								// What do we want? intersection point on the ray or on the segment??
-								// point: raycaster.ray.at( distance ),
-								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
-								index: i,
-								face: null,
-								faceIndex: null,
-								object: this
-
-							} );
-
-						}
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var vertices = geometry.vertices;
-					var nbVertices = vertices.length;
-
-					for ( var i = 0; i < nbVertices - 1; i += step ) {
-
-						var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );
-
-						if ( distSq > precisionSq ) continue;
-
-						interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation
-
-						var distance = raycaster.ray.origin.distanceTo( interRay );
-
-						if ( distance < raycaster.near || distance > raycaster.far ) continue;
-
-						intersects.push( {
-
-							distance: distance,
-							// What do we want? intersection point on the ray or on the segment??
-							// point: raycaster.ray.at( distance ),
-							point: interSegment.clone().applyMatrix4( this.matrixWorld ),
-							index: i,
-							face: null,
-							faceIndex: null,
-							object: this
-
-						} );
-
-					}
-
-				}
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LineSegments( geometry, material ) {
-
-		Line.call( this, geometry, material );
-
-		this.type = 'LineSegments';
-
-	}
-
-	LineSegments.prototype = Object.assign( Object.create( Line.prototype ), {
-
-		constructor: LineSegments,
-
-		isLineSegments: true,
-
-		computeLineDistances: ( function () {
-
-			var start = new Vector3();
-			var end = new Vector3();
-
-			return function computeLineDistances() {
-
-				var geometry = this.geometry;
-
-				if ( geometry.isBufferGeometry ) {
-
-					// we assume non-indexed geometry
-
-					if ( geometry.index === null ) {
-
-						var positionAttribute = geometry.attributes.position;
-						var lineDistances = [];
-
-						for ( var i = 0, l = positionAttribute.count; i < l; i += 2 ) {
-
-							start.fromBufferAttribute( positionAttribute, i );
-							end.fromBufferAttribute( positionAttribute, i + 1 );
-
-							lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
-							lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );
-
-						}
-
-						geometry.addAttribute( 'lineDistance', new THREE.Float32BufferAttribute( lineDistances, 1 ) );
-
-					} else {
-
-						console.warn( 'THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.' );
-
-					}
-
-				} else if ( geometry.isGeometry ) {
-
-					var vertices = geometry.vertices;
-					var lineDistances = geometry.lineDistances;
-
-					for ( var i = 0, l = vertices.length; i < l; i += 2 ) {
-
-						start.copy( vertices[ i ] );
-						end.copy( vertices[ i + 1 ] );
-
-						lineDistances[ i ] = ( i === 0 ) ? 0 : lineDistances[ i - 1 ];
-						lineDistances[ i + 1 ] = lineDistances[ i ] + start.distanceTo( end );
-
-					}
-
-				}
-
-				return this;
-
-			};
-
-		}() )
-
-	} );
-
-	/**
-	 * @author mgreter / http://github.com/mgreter
-	 */
-
-	function LineLoop( geometry, material ) {
-
-		Line.call( this, geometry, material );
-
-		this.type = 'LineLoop';
-
-	}
-
-	LineLoop.prototype = Object.assign( Object.create( Line.prototype ), {
-
-		constructor: LineLoop,
-
-		isLineLoop: true,
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  size: <float>,
-	 *  sizeAttenuation: <bool>
-	 * }
-	 */
-
-	function PointsMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'PointsMaterial';
-
-		this.color = new Color( 0xffffff );
-
-		this.map = null;
-
-		this.size = 1;
-		this.sizeAttenuation = true;
-
-		this.lights = false;
-
-		this.setValues( parameters );
-
-	}
-
-	PointsMaterial.prototype = Object.create( Material.prototype );
-	PointsMaterial.prototype.constructor = PointsMaterial;
-
-	PointsMaterial.prototype.isPointsMaterial = true;
-
-	PointsMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.map = source.map;
-
-		this.size = source.size;
-		this.sizeAttenuation = source.sizeAttenuation;
-
-		return this;
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Points( geometry, material ) {
-
-		Object3D.call( this );
-
-		this.type = 'Points';
-
-		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
-		this.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );
-
-	}
-
-	Points.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Points,
-
-		isPoints: true,
-
-		raycast: ( function () {
-
-			var inverseMatrix = new Matrix4();
-			var ray = new Ray();
-			var sphere = new Sphere();
-
-			return function raycast( raycaster, intersects ) {
-
-				var object = this;
-				var geometry = this.geometry;
-				var matrixWorld = this.matrixWorld;
-				var threshold = raycaster.params.Points.threshold;
-
-				// Checking boundingSphere distance to ray
-
-				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();
-
-				sphere.copy( geometry.boundingSphere );
-				sphere.applyMatrix4( matrixWorld );
-				sphere.radius += threshold;
-
-				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;
-
-				//
-
-				inverseMatrix.getInverse( matrixWorld );
-				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );
-
-				var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
-				var localThresholdSq = localThreshold * localThreshold;
-				var position = new Vector3();
-
-				function testPoint( point, index ) {
-
-					var rayPointDistanceSq = ray.distanceSqToPoint( point );
-
-					if ( rayPointDistanceSq < localThresholdSq ) {
-
-						var intersectPoint = ray.closestPointToPoint( point );
-						intersectPoint.applyMatrix4( matrixWorld );
-
-						var distance = raycaster.ray.origin.distanceTo( intersectPoint );
-
-						if ( distance < raycaster.near || distance > raycaster.far ) return;
-
-						intersects.push( {
-
-							distance: distance,
-							distanceToRay: Math.sqrt( rayPointDistanceSq ),
-							point: intersectPoint.clone(),
-							index: index,
-							face: null,
-							object: object
-
-						} );
-
-					}
-
-				}
-
-				if ( geometry.isBufferGeometry ) {
-
-					var index = geometry.index;
-					var attributes = geometry.attributes;
-					var positions = attributes.position.array;
-
-					if ( index !== null ) {
-
-						var indices = index.array;
-
-						for ( var i = 0, il = indices.length; i < il; i ++ ) {
-
-							var a = indices[ i ];
-
-							position.fromArray( positions, a * 3 );
-
-							testPoint( position, a );
-
-						}
-
-					} else {
-
-						for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {
-
-							position.fromArray( positions, i * 3 );
-
-							testPoint( position, i );
-
-						}
-
-					}
-
-				} else {
-
-					var vertices = geometry.vertices;
-
-					for ( var i = 0, l = vertices.length; i < l; i ++ ) {
-
-						testPoint( vertices[ i ], i );
-
-					}
-
-				}
-
-			};
-
-		}() ),
-
-		clone: function () {
-
-			return new this.constructor( this.geometry, this.material ).copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Group() {
-
-		Object3D.call( this );
-
-		this.type = 'Group';
-
-	}
-
-	Group.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Group,
-
-		isGroup: true
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {
-
-		Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
-
-		this.generateMipmaps = false;
-
-	}
-
-	VideoTexture.prototype = Object.assign( Object.create( Texture.prototype ), {
-
-		constructor: VideoTexture,
-
-		isVideoTexture: true,
-
-		update: function () {
-
-			var video = this.image;
-
-			if ( video.readyState >= video.HAVE_CURRENT_DATA ) {
-
-				this.needsUpdate = true;
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {
-
-		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );
-
-		this.image = { width: width, height: height };
-		this.mipmaps = mipmaps;
-
-		// no flipping for cube textures
-		// (also flipping doesn't work for compressed textures )
-
-		this.flipY = false;
-
-		// can't generate mipmaps for compressed textures
-		// mips must be embedded in DDS files
-
-		this.generateMipmaps = false;
-
-	}
-
-	CompressedTexture.prototype = Object.create( Texture.prototype );
-	CompressedTexture.prototype.constructor = CompressedTexture;
-
-	CompressedTexture.prototype.isCompressedTexture = true;
-
-	/**
-	 * @author Matt DesLauriers / @mattdesl
-	 * @author atix / arthursilber.de
-	 */
-
-	function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {
-
-		format = format !== undefined ? format : DepthFormat;
-
-		if ( format !== DepthFormat && format !== DepthStencilFormat ) {
-
-			throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' );
-
-		}
-
-		if ( type === undefined && format === DepthFormat ) type = UnsignedShortType;
-		if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;
-
-		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );
-
-		this.image = { width: width, height: height };
-
-		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
-		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;
-
-		this.flipY = false;
-		this.generateMipmaps	= false;
-
-	}
-
-	DepthTexture.prototype = Object.create( Texture.prototype );
-	DepthTexture.prototype.constructor = DepthTexture;
-	DepthTexture.prototype.isDepthTexture = true;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function WireframeGeometry( geometry ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'WireframeGeometry';
-
-		// buffer
-
-		var vertices = [];
-
-		// helper variables
-
-		var i, j, l, o, ol;
-		var edge = [ 0, 0 ], edges = {}, e, edge1, edge2;
-		var key, keys = [ 'a', 'b', 'c' ];
-		var vertex;
-
-		// different logic for Geometry and BufferGeometry
-
-		if ( geometry && geometry.isGeometry ) {
-
-			// create a data structure that contains all edges without duplicates
-
-			var faces = geometry.faces;
-
-			for ( i = 0, l = faces.length; i < l; i ++ ) {
-
-				var face = faces[ i ];
-
-				for ( j = 0; j < 3; j ++ ) {
-
-					edge1 = face[ keys[ j ] ];
-					edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
-					edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
-					edge[ 1 ] = Math.max( edge1, edge2 );
-
-					key = edge[ 0 ] + ',' + edge[ 1 ];
-
-					if ( edges[ key ] === undefined ) {
-
-						edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
-
-					}
-
-				}
-
-			}
-
-			// generate vertices
-
-			for ( key in edges ) {
-
-				e = edges[ key ];
-
-				vertex = geometry.vertices[ e.index1 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				vertex = geometry.vertices[ e.index2 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-		} else if ( geometry && geometry.isBufferGeometry ) {
-
-			var position, indices, groups;
-			var group, start, count;
-			var index1, index2;
-
-			vertex = new Vector3();
-
-			if ( geometry.index !== null ) {
-
-				// indexed BufferGeometry
-
-				position = geometry.attributes.position;
-				indices = geometry.index;
-				groups = geometry.groups;
-
-				if ( groups.length === 0 ) {
-
-					groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];
-
-				}
-
-				// create a data structure that contains all eges without duplicates
-
-				for ( o = 0, ol = groups.length; o < ol; ++ o ) {
-
-					group = groups[ o ];
-
-					start = group.start;
-					count = group.count;
-
-					for ( i = start, l = ( start + count ); i < l; i += 3 ) {
-
-						for ( j = 0; j < 3; j ++ ) {
-
-							edge1 = indices.getX( i + j );
-							edge2 = indices.getX( i + ( j + 1 ) % 3 );
-							edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
-							edge[ 1 ] = Math.max( edge1, edge2 );
-
-							key = edge[ 0 ] + ',' + edge[ 1 ];
-
-							if ( edges[ key ] === undefined ) {
-
-								edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };
-
-							}
-
-						}
-
-					}
-
-				}
-
-				// generate vertices
-
-				for ( key in edges ) {
-
-					e = edges[ key ];
-
-					vertex.fromBufferAttribute( position, e.index1 );
-					vertices.push( vertex.x, vertex.y, vertex.z );
-
-					vertex.fromBufferAttribute( position, e.index2 );
-					vertices.push( vertex.x, vertex.y, vertex.z );
-
-				}
-
-			} else {
-
-				// non-indexed BufferGeometry
-
-				position = geometry.attributes.position;
-
-				for ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {
-
-					for ( j = 0; j < 3; j ++ ) {
-
-						// three edges per triangle, an edge is represented as (index1, index2)
-						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)
-
-						index1 = 3 * i + j;
-						vertex.fromBufferAttribute( position, index1 );
-						vertices.push( vertex.x, vertex.y, vertex.z );
-
-						index2 = 3 * i + ( ( j + 1 ) % 3 );
-						vertex.fromBufferAttribute( position, index2 );
-						vertices.push( vertex.x, vertex.y, vertex.z );
-
-					}
-
-				}
-
-			}
-
-		}
-
-		// build geometry
-
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-
-	}
-
-	WireframeGeometry.prototype = Object.create( BufferGeometry.prototype );
-	WireframeGeometry.prototype.constructor = WireframeGeometry;
-
-	/**
-	 * @author zz85 / https://github.com/zz85
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 * Parametric Surfaces Geometry
-	 * based on the brilliant article by @prideout http://prideout.net/blog/?p=44
-	 */
-
-	// ParametricGeometry
-
-	function ParametricGeometry( func, slices, stacks ) {
-
-		Geometry.call( this );
-
-		this.type = 'ParametricGeometry';
-
-		this.parameters = {
-			func: func,
-			slices: slices,
-			stacks: stacks
-		};
-
-		this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );
-		this.mergeVertices();
-
-	}
-
-	ParametricGeometry.prototype = Object.create( Geometry.prototype );
-	ParametricGeometry.prototype.constructor = ParametricGeometry;
-
-	// ParametricBufferGeometry
-
-	function ParametricBufferGeometry( func, slices, stacks ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'ParametricBufferGeometry';
-
-		this.parameters = {
-			func: func,
-			slices: slices,
-			stacks: stacks
-		};
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		var EPS = 0.00001;
-
-		var normal = new Vector3();
-
-		var p0 = new Vector3(), p1 = new Vector3();
-		var pu = new Vector3(), pv = new Vector3();
-
-		var i, j;
-
-		// generate vertices, normals and uvs
-
-		var sliceCount = slices + 1;
-
-		for ( i = 0; i <= stacks; i ++ ) {
-
-			var v = i / stacks;
-
-			for ( j = 0; j <= slices; j ++ ) {
-
-				var u = j / slices;
-
-				// vertex
-
-				p0 = func( u, v, p0 );
-				vertices.push( p0.x, p0.y, p0.z );
-
-				// normal
-
-				// approximate tangent vectors via finite differences
-
-				if ( u - EPS >= 0 ) {
-
-					p1 = func( u - EPS, v, p1 );
-					pu.subVectors( p0, p1 );
-
-				} else {
-
-					p1 = func( u + EPS, v, p1 );
-					pu.subVectors( p1, p0 );
-
-				}
-
-				if ( v - EPS >= 0 ) {
-
-					p1 = func( u, v - EPS, p1 );
-					pv.subVectors( p0, p1 );
-
-				} else {
-
-					p1 = func( u, v + EPS, p1 );
-					pv.subVectors( p1, p0 );
-
-				}
-
-				// cross product of tangent vectors returns surface normal
-
-				normal.crossVectors( pu, pv ).normalize();
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( u, v );
-
-			}
-
-		}
-
-		// generate indices
-
-		for ( i = 0; i < stacks; i ++ ) {
-
-			for ( j = 0; j < slices; j ++ ) {
-
-				var a = i * sliceCount + j;
-				var b = i * sliceCount + j + 1;
-				var c = ( i + 1 ) * sliceCount + j + 1;
-				var d = ( i + 1 ) * sliceCount + j;
-
-				// faces one and two
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;
-
-	/**
-	 * @author clockworkgeek / https://github.com/clockworkgeek
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// PolyhedronGeometry
-
-	function PolyhedronGeometry( vertices, indices, radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'PolyhedronGeometry';
-
-		this.parameters = {
-			vertices: vertices,
-			indices: indices,
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	PolyhedronGeometry.prototype = Object.create( Geometry.prototype );
-	PolyhedronGeometry.prototype.constructor = PolyhedronGeometry;
-
-	// PolyhedronBufferGeometry
-
-	function PolyhedronBufferGeometry( vertices, indices, radius, detail ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'PolyhedronBufferGeometry';
-
-		this.parameters = {
-			vertices: vertices,
-			indices: indices,
-			radius: radius,
-			detail: detail
-		};
-
-		radius = radius || 1;
-		detail = detail || 0;
-
-		// default buffer data
-
-		var vertexBuffer = [];
-		var uvBuffer = [];
-
-		// the subdivision creates the vertex buffer data
-
-		subdivide( detail );
-
-		// all vertices should lie on a conceptual sphere with a given radius
-
-		appplyRadius( radius );
-
-		// finally, create the uv data
-
-		generateUVs();
-
-		// build non-indexed geometry
-
-		this.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );
-
-		if ( detail === 0 ) {
-
-			this.computeVertexNormals(); // flat normals
-
-		} else {
-
-			this.normalizeNormals(); // smooth normals
-
-		}
-
-		// helper functions
-
-		function subdivide( detail ) {
-
-			var a = new Vector3();
-			var b = new Vector3();
-			var c = new Vector3();
-
-			// iterate over all faces and apply a subdivison with the given detail value
-
-			for ( var i = 0; i < indices.length; i += 3 ) {
-
-				// get the vertices of the face
-
-				getVertexByIndex( indices[ i + 0 ], a );
-				getVertexByIndex( indices[ i + 1 ], b );
-				getVertexByIndex( indices[ i + 2 ], c );
-
-				// perform subdivision
-
-				subdivideFace( a, b, c, detail );
-
-			}
-
-		}
-
-		function subdivideFace( a, b, c, detail ) {
-
-			var cols = Math.pow( 2, detail );
-
-			// we use this multidimensional array as a data structure for creating the subdivision
-
-			var v = [];
-
-			var i, j;
-
-			// construct all of the vertices for this subdivision
-
-			for ( i = 0; i <= cols; i ++ ) {
-
-				v[ i ] = [];
-
-				var aj = a.clone().lerp( c, i / cols );
-				var bj = b.clone().lerp( c, i / cols );
-
-				var rows = cols - i;
-
-				for ( j = 0; j <= rows; j ++ ) {
-
-					if ( j === 0 && i === cols ) {
-
-						v[ i ][ j ] = aj;
-
-					} else {
-
-						v[ i ][ j ] = aj.clone().lerp( bj, j / rows );
-
-					}
-
-				}
-
-			}
-
-			// construct all of the faces
-
-			for ( i = 0; i < cols; i ++ ) {
-
-				for ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {
-
-					var k = Math.floor( j / 2 );
-
-					if ( j % 2 === 0 ) {
-
-						pushVertex( v[ i ][ k + 1 ] );
-						pushVertex( v[ i + 1 ][ k ] );
-						pushVertex( v[ i ][ k ] );
-
-					} else {
-
-						pushVertex( v[ i ][ k + 1 ] );
-						pushVertex( v[ i + 1 ][ k + 1 ] );
-						pushVertex( v[ i + 1 ][ k ] );
-
-					}
-
-				}
-
-			}
-
-		}
-
-		function appplyRadius( radius ) {
-
-			var vertex = new Vector3();
-
-			// iterate over the entire buffer and apply the radius to each vertex
-
-			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
-
-				vertex.x = vertexBuffer[ i + 0 ];
-				vertex.y = vertexBuffer[ i + 1 ];
-				vertex.z = vertexBuffer[ i + 2 ];
-
-				vertex.normalize().multiplyScalar( radius );
-
-				vertexBuffer[ i + 0 ] = vertex.x;
-				vertexBuffer[ i + 1 ] = vertex.y;
-				vertexBuffer[ i + 2 ] = vertex.z;
-
-			}
-
-		}
-
-		function generateUVs() {
-
-			var vertex = new Vector3();
-
-			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {
-
-				vertex.x = vertexBuffer[ i + 0 ];
-				vertex.y = vertexBuffer[ i + 1 ];
-				vertex.z = vertexBuffer[ i + 2 ];
-
-				var u = azimuth( vertex ) / 2 / Math.PI + 0.5;
-				var v = inclination( vertex ) / Math.PI + 0.5;
-				uvBuffer.push( u, 1 - v );
-
-			}
-
-			correctUVs();
-
-			correctSeam();
-
-		}
-
-		function correctSeam() {
-
-			// handle case when face straddles the seam, see #3269
-
-			for ( var i = 0; i < uvBuffer.length; i += 6 ) {
-
-				// uv data of a single face
-
-				var x0 = uvBuffer[ i + 0 ];
-				var x1 = uvBuffer[ i + 2 ];
-				var x2 = uvBuffer[ i + 4 ];
-
-				var max = Math.max( x0, x1, x2 );
-				var min = Math.min( x0, x1, x2 );
-
-				// 0.9 is somewhat arbitrary
-
-				if ( max > 0.9 && min < 0.1 ) {
-
-					if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
-					if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
-					if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;
-
-				}
-
-			}
-
-		}
-
-		function pushVertex( vertex ) {
-
-			vertexBuffer.push( vertex.x, vertex.y, vertex.z );
-
-		}
-
-		function getVertexByIndex( index, vertex ) {
-
-			var stride = index * 3;
-
-			vertex.x = vertices[ stride + 0 ];
-			vertex.y = vertices[ stride + 1 ];
-			vertex.z = vertices[ stride + 2 ];
-
-		}
-
-		function correctUVs() {
-
-			var a = new Vector3();
-			var b = new Vector3();
-			var c = new Vector3();
-
-			var centroid = new Vector3();
-
-			var uvA = new Vector2();
-			var uvB = new Vector2();
-			var uvC = new Vector2();
-
-			for ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {
-
-				a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
-				b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
-				c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );
-
-				uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
-				uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
-				uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );
-
-				centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );
-
-				var azi = azimuth( centroid );
-
-				correctUV( uvA, j + 0, a, azi );
-				correctUV( uvB, j + 2, b, azi );
-				correctUV( uvC, j + 4, c, azi );
-
-			}
-
-		}
-
-		function correctUV( uv, stride, vector, azimuth ) {
-
-			if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {
-
-				uvBuffer[ stride ] = uv.x - 1;
-
-			}
-
-			if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {
-
-				uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;
-
-			}
-
-		}
-
-		// Angle around the Y axis, counter-clockwise when looking from above.
-
-		function azimuth( vector ) {
-
-			return Math.atan2( vector.z, - vector.x );
-
-		}
-
-
-		// Angle above the XZ plane.
-
-		function inclination( vector ) {
-
-			return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );
-
-		}
-
-	}
-
-	PolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	PolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;
-
-	/**
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// TetrahedronGeometry
-
-	function TetrahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'TetrahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	TetrahedronGeometry.prototype = Object.create( Geometry.prototype );
-	TetrahedronGeometry.prototype.constructor = TetrahedronGeometry;
-
-	// TetrahedronBufferGeometry
-
-	function TetrahedronBufferGeometry( radius, detail ) {
-
-		var vertices = [
-			1, 1, 1, 	- 1, - 1, 1, 	- 1, 1, - 1, 	1, - 1, - 1
-		];
-
-		var indices = [
-			2, 1, 0, 	0, 3, 2,	1, 3, 0,	2, 3, 1
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'TetrahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	TetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	TetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;
-
-	/**
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// OctahedronGeometry
-
-	function OctahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'OctahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	OctahedronGeometry.prototype = Object.create( Geometry.prototype );
-	OctahedronGeometry.prototype.constructor = OctahedronGeometry;
-
-	// OctahedronBufferGeometry
-
-	function OctahedronBufferGeometry( radius, detail ) {
-
-		var vertices = [
-			1, 0, 0, 	- 1, 0, 0,	0, 1, 0,
-			0, - 1, 0, 	0, 0, 1,	0, 0, - 1
-		];
-
-		var indices = [
-			0, 2, 4,	0, 4, 3,	0, 3, 5,
-			0, 5, 2,	1, 2, 5,	1, 5, 3,
-			1, 3, 4,	1, 4, 2
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'OctahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	OctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	OctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;
-
-	/**
-	 * @author timothypratley / https://github.com/timothypratley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// IcosahedronGeometry
-
-	function IcosahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'IcosahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	IcosahedronGeometry.prototype = Object.create( Geometry.prototype );
-	IcosahedronGeometry.prototype.constructor = IcosahedronGeometry;
-
-	// IcosahedronBufferGeometry
-
-	function IcosahedronBufferGeometry( radius, detail ) {
-
-		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
-
-		var vertices = [
-			- 1, t, 0, 	1, t, 0, 	- 1, - t, 0, 	1, - t, 0,
-			 0, - 1, t, 	0, 1, t,	0, - 1, - t, 	0, 1, - t,
-			 t, 0, - 1, 	t, 0, 1, 	- t, 0, - 1, 	- t, 0, 1
-		];
-
-		var indices = [
-			 0, 11, 5, 	0, 5, 1, 	0, 1, 7, 	0, 7, 10, 	0, 10, 11,
-			 1, 5, 9, 	5, 11, 4,	11, 10, 2,	10, 7, 6,	7, 1, 8,
-			 3, 9, 4, 	3, 4, 2,	3, 2, 6,	3, 6, 8,	3, 8, 9,
-			 4, 9, 5, 	2, 4, 11,	6, 2, 10,	8, 6, 7,	9, 8, 1
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'IcosahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;
-
-	/**
-	 * @author Abe Pazos / https://hamoid.com
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// DodecahedronGeometry
-
-	function DodecahedronGeometry( radius, detail ) {
-
-		Geometry.call( this );
-
-		this.type = 'DodecahedronGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-		this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );
-		this.mergeVertices();
-
-	}
-
-	DodecahedronGeometry.prototype = Object.create( Geometry.prototype );
-	DodecahedronGeometry.prototype.constructor = DodecahedronGeometry;
-
-	// DodecahedronBufferGeometry
-
-	function DodecahedronBufferGeometry( radius, detail ) {
-
-		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
-		var r = 1 / t;
-
-		var vertices = [
-
-			// (±1, ±1, ±1)
-			- 1, - 1, - 1,	- 1, - 1, 1,
-			- 1, 1, - 1, - 1, 1, 1,
-			1, - 1, - 1, 1, - 1, 1,
-			1, 1, - 1, 1, 1, 1,
-
-			// (0, ±1/φ, ±φ)
-			 0, - r, - t, 0, - r, t,
-			 0, r, - t, 0, r, t,
-
-			// (±1/φ, ±φ, 0)
-			- r, - t, 0, - r, t, 0,
-			 r, - t, 0, r, t, 0,
-
-			// (±φ, 0, ±1/φ)
-			- t, 0, - r, t, 0, - r,
-			- t, 0, r, t, 0, r
-		];
-
-		var indices = [
-			3, 11, 7, 	3, 7, 15, 	3, 15, 13,
-			7, 19, 17, 	7, 17, 6, 	7, 6, 15,
-			17, 4, 8, 	17, 8, 10, 	17, 10, 6,
-			8, 0, 16, 	8, 16, 2, 	8, 2, 10,
-			0, 12, 1, 	0, 1, 18, 	0, 18, 16,
-			6, 10, 2, 	6, 2, 13, 	6, 13, 15,
-			2, 16, 18, 	2, 18, 3, 	2, 3, 13,
-			18, 1, 9, 	18, 9, 11, 	18, 11, 3,
-			4, 14, 12, 	4, 12, 0, 	4, 0, 8,
-			11, 9, 5, 	11, 5, 19, 	11, 19, 7,
-			19, 5, 14, 	19, 14, 4, 	19, 4, 17,
-			1, 12, 14, 	1, 14, 5, 	1, 5, 9
-		];
-
-		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );
-
-		this.type = 'DodecahedronBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			detail: detail
-		};
-
-	}
-
-	DodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
-	DodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;
-
-	/**
-	 * @author oosmoxiecode / https://github.com/oosmoxiecode
-	 * @author WestLangley / https://github.com/WestLangley
-	 * @author zz85 / https://github.com/zz85
-	 * @author miningold / https://github.com/miningold
-	 * @author jonobr1 / https://github.com/jonobr1
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 */
-
-	// TubeGeometry
-
-	function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {
-
-		Geometry.call( this );
-
-		this.type = 'TubeGeometry';
-
-		this.parameters = {
-			path: path,
-			tubularSegments: tubularSegments,
-			radius: radius,
-			radialSegments: radialSegments,
-			closed: closed
-		};
-
-		if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );
-
-		var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );
-
-		// expose internals
-
-		this.tangents = bufferGeometry.tangents;
-		this.normals = bufferGeometry.normals;
-		this.binormals = bufferGeometry.binormals;
-
-		// create geometry
-
-		this.fromBufferGeometry( bufferGeometry );
-		this.mergeVertices();
-
-	}
-
-	TubeGeometry.prototype = Object.create( Geometry.prototype );
-	TubeGeometry.prototype.constructor = TubeGeometry;
-
-	// TubeBufferGeometry
-
-	function TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'TubeBufferGeometry';
-
-		this.parameters = {
-			path: path,
-			tubularSegments: tubularSegments,
-			radius: radius,
-			radialSegments: radialSegments,
-			closed: closed
-		};
-
-		tubularSegments = tubularSegments || 64;
-		radius = radius || 1;
-		radialSegments = radialSegments || 8;
-		closed = closed || false;
-
-		var frames = path.computeFrenetFrames( tubularSegments, closed );
-
-		// expose internals
-
-		this.tangents = frames.tangents;
-		this.normals = frames.normals;
-		this.binormals = frames.binormals;
-
-		// helper variables
-
-		var vertex = new Vector3();
-		var normal = new Vector3();
-		var uv = new Vector2();
-		var P = new Vector3();
-
-		var i, j;
-
-		// buffer
-
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-		var indices = [];
-
-		// create buffer data
-
-		generateBufferData();
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		// functions
-
-		function generateBufferData() {
-
-			for ( i = 0; i < tubularSegments; i ++ ) {
-
-				generateSegment( i );
-
-			}
-
-			// if the geometry is not closed, generate the last row of vertices and normals
-			// at the regular position on the given path
-			//
-			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)
-
-			generateSegment( ( closed === false ) ? tubularSegments : 0 );
-
-			// uvs are generated in a separate function.
-			// this makes it easy compute correct values for closed geometries
-
-			generateUVs();
-
-			// finally create faces
-
-			generateIndices();
-
-		}
-
-		function generateSegment( i ) {
-
-			// we use getPointAt to sample evenly distributed points from the given path
-
-			P = path.getPointAt( i / tubularSegments, P );
-
-			// retrieve corresponding normal and binormal
-
-			var N = frames.normals[ i ];
-			var B = frames.binormals[ i ];
-
-			// generate normals and vertices for the current segment
-
-			for ( j = 0; j <= radialSegments; j ++ ) {
-
-				var v = j / radialSegments * Math.PI * 2;
-
-				var sin = Math.sin( v );
-				var cos = - Math.cos( v );
-
-				// normal
-
-				normal.x = ( cos * N.x + sin * B.x );
-				normal.y = ( cos * N.y + sin * B.y );
-				normal.z = ( cos * N.z + sin * B.z );
-				normal.normalize();
-
-				normals.push( normal.x, normal.y, normal.z );
-
-				// vertex
-
-				vertex.x = P.x + radius * normal.x;
-				vertex.y = P.y + radius * normal.y;
-				vertex.z = P.z + radius * normal.z;
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-		}
-
-		function generateIndices() {
-
-			for ( j = 1; j <= tubularSegments; j ++ ) {
-
-				for ( i = 1; i <= radialSegments; i ++ ) {
-
-					var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
-					var b = ( radialSegments + 1 ) * j + ( i - 1 );
-					var c = ( radialSegments + 1 ) * j + i;
-					var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
-
-					// faces
-
-					indices.push( a, b, d );
-					indices.push( b, c, d );
-
-				}
-
-			}
-
-		}
-
-		function generateUVs() {
-
-			for ( i = 0; i <= tubularSegments; i ++ ) {
-
-				for ( j = 0; j <= radialSegments; j ++ ) {
-
-					uv.x = i / tubularSegments;
-					uv.y = j / radialSegments;
-
-					uvs.push( uv.x, uv.y );
-
-				}
-
-			}
-
-		}
-
-	}
-
-	TubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	TubeBufferGeometry.prototype.constructor = TubeBufferGeometry;
-
-	/**
-	 * @author oosmoxiecode
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 * based on http://www.blackpawn.com/texts/pqtorus/
-	 */
-
-	// TorusKnotGeometry
-
-	function TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {
-
-		Geometry.call( this );
-
-		this.type = 'TorusKnotGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			tubularSegments: tubularSegments,
-			radialSegments: radialSegments,
-			p: p,
-			q: q
-		};
-
-		if ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );
-
-		this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );
-		this.mergeVertices();
-
-	}
-
-	TorusKnotGeometry.prototype = Object.create( Geometry.prototype );
-	TorusKnotGeometry.prototype.constructor = TorusKnotGeometry;
-
-	// TorusKnotBufferGeometry
-
-	function TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'TorusKnotBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			tubularSegments: tubularSegments,
-			radialSegments: radialSegments,
-			p: p,
-			q: q
-		};
-
-		radius = radius || 1;
-		tube = tube || 0.4;
-		tubularSegments = Math.floor( tubularSegments ) || 64;
-		radialSegments = Math.floor( radialSegments ) || 8;
-		p = p || 2;
-		q = q || 3;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var i, j;
-
-		var vertex = new Vector3();
-		var normal = new Vector3();
-
-		var P1 = new Vector3();
-		var P2 = new Vector3();
-
-		var B = new Vector3();
-		var T = new Vector3();
-		var N = new Vector3();
-
-		// generate vertices, normals and uvs
-
-		for ( i = 0; i <= tubularSegments; ++ i ) {
-
-			// the radian "u" is used to calculate the position on the torus curve of the current tubular segement
-
-			var u = i / tubularSegments * p * Math.PI * 2;
-
-			// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
-			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions
-
-			calculatePositionOnCurve( u, p, q, radius, P1 );
-			calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );
-
-			// calculate orthonormal basis
-
-			T.subVectors( P2, P1 );
-			N.addVectors( P2, P1 );
-			B.crossVectors( T, N );
-			N.crossVectors( B, T );
-
-			// normalize B, N. T can be ignored, we don't use it
-
-			B.normalize();
-			N.normalize();
-
-			for ( j = 0; j <= radialSegments; ++ j ) {
-
-				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
-				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.
-
-				var v = j / radialSegments * Math.PI * 2;
-				var cx = - tube * Math.cos( v );
-				var cy = tube * Math.sin( v );
-
-				// now calculate the final vertex position.
-				// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve
-
-				vertex.x = P1.x + ( cx * N.x + cy * B.x );
-				vertex.y = P1.y + ( cx * N.y + cy * B.y );
-				vertex.z = P1.z + ( cx * N.z + cy * B.z );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)
-
-				normal.subVectors( vertex, P1 ).normalize();
-
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( i / tubularSegments );
-				uvs.push( j / radialSegments );
-
-			}
-
-		}
-
-		// generate indices
-
-		for ( j = 1; j <= tubularSegments; j ++ ) {
-
-			for ( i = 1; i <= radialSegments; i ++ ) {
-
-				// indices
-
-				var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
-				var b = ( radialSegments + 1 ) * j + ( i - 1 );
-				var c = ( radialSegments + 1 ) * j + i;
-				var d = ( radialSegments + 1 ) * ( j - 1 ) + i;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		// this function calculates the current position on the torus curve
-
-		function calculatePositionOnCurve( u, p, q, radius, position ) {
-
-			var cu = Math.cos( u );
-			var su = Math.sin( u );
-			var quOverP = q / p * u;
-			var cs = Math.cos( quOverP );
-
-			position.x = radius * ( 2 + cs ) * 0.5 * cu;
-			position.y = radius * ( 2 + cs ) * su * 0.5;
-			position.z = radius * Math.sin( quOverP ) * 0.5;
-
-		}
-
-	}
-
-	TorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	TorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;
-
-	/**
-	 * @author oosmoxiecode
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// TorusGeometry
-
-	function TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
-
-		Geometry.call( this );
-
-		this.type = 'TorusGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			radialSegments: radialSegments,
-			tubularSegments: tubularSegments,
-			arc: arc
-		};
-
-		this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );
-		this.mergeVertices();
-
-	}
-
-	TorusGeometry.prototype = Object.create( Geometry.prototype );
-	TorusGeometry.prototype.constructor = TorusGeometry;
-
-	// TorusBufferGeometry
-
-	function TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'TorusBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			tube: tube,
-			radialSegments: radialSegments,
-			tubularSegments: tubularSegments,
-			arc: arc
-		};
-
-		radius = radius || 1;
-		tube = tube || 0.4;
-		radialSegments = Math.floor( radialSegments ) || 8;
-		tubularSegments = Math.floor( tubularSegments ) || 6;
-		arc = arc || Math.PI * 2;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var center = new Vector3();
-		var vertex = new Vector3();
-		var normal = new Vector3();
-
-		var j, i;
-
-		// generate vertices, normals and uvs
-
-		for ( j = 0; j <= radialSegments; j ++ ) {
-
-			for ( i = 0; i <= tubularSegments; i ++ ) {
-
-				var u = i / tubularSegments * arc;
-				var v = j / radialSegments * Math.PI * 2;
-
-				// vertex
-
-				vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
-				vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
-				vertex.z = tube * Math.sin( v );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				center.x = radius * Math.cos( u );
-				center.y = radius * Math.sin( u );
-				normal.subVectors( vertex, center ).normalize();
-
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( i / tubularSegments );
-				uvs.push( j / radialSegments );
-
-			}
-
-		}
-
-		// generate indices
-
-		for ( j = 1; j <= radialSegments; j ++ ) {
-
-			for ( i = 1; i <= tubularSegments; i ++ ) {
-
-				// indices
-
-				var a = ( tubularSegments + 1 ) * j + i - 1;
-				var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
-				var c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
-				var d = ( tubularSegments + 1 ) * j + i;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	TorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	TorusBufferGeometry.prototype.constructor = TorusBufferGeometry;
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 * Port from https://github.com/mapbox/earcut (v2.1.2)
-	 */
-
-	var Earcut = {
-
-		triangulate: function ( data, holeIndices, dim ) {
-
-			dim = dim || 2;
-
-			var hasHoles = holeIndices && holeIndices.length,
-				outerLen = hasHoles ? holeIndices[ 0 ] * dim : data.length,
-				outerNode = linkedList( data, 0, outerLen, dim, true ),
-				triangles = [];
-
-			if ( ! outerNode ) return triangles;
-
-			var minX, minY, maxX, maxY, x, y, invSize;
-
-			if ( hasHoles ) outerNode = eliminateHoles( data, holeIndices, outerNode, dim );
-
-			// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
-
-			if ( data.length > 80 * dim ) {
-
-				minX = maxX = data[ 0 ];
-				minY = maxY = data[ 1 ];
-
-				for ( var i = dim; i < outerLen; i += dim ) {
-
-					x = data[ i ];
-					y = data[ i + 1 ];
-					if ( x < minX ) minX = x;
-					if ( y < minY ) minY = y;
-					if ( x > maxX ) maxX = x;
-					if ( y > maxY ) maxY = y;
-
-				}
-
-				// minX, minY and invSize are later used to transform coords into integers for z-order calculation
-
-				invSize = Math.max( maxX - minX, maxY - minY );
-				invSize = invSize !== 0 ? 1 / invSize : 0;
-
-			}
-
-			earcutLinked( outerNode, triangles, dim, minX, minY, invSize );
-
-			return triangles;
-
-		}
-
-	};
-
-	// create a circular doubly linked list from polygon points in the specified winding order
-
-	function linkedList( data, start, end, dim, clockwise ) {
-
-		var i, last;
-
-		if ( clockwise === ( signedArea( data, start, end, dim ) > 0 ) ) {
-
-			for ( i = start; i < end; i += dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );
-
-		} else {
-
-			for ( i = end - dim; i >= start; i -= dim ) last = insertNode( i, data[ i ], data[ i + 1 ], last );
-
-		}
-
-		if ( last && equals( last, last.next ) ) {
-
-			removeNode( last );
-			last = last.next;
-
-		}
-
-		return last;
-
-	}
-
-	// eliminate colinear or duplicate points
-
-	function filterPoints( start, end ) {
-
-		if ( ! start ) return start;
-		if ( ! end ) end = start;
-
-		var p = start, again;
-
-		do {
-
-			again = false;
-
-			if ( ! p.steiner && ( equals( p, p.next ) || area( p.prev, p, p.next ) === 0 ) ) {
-
-				removeNode( p );
-				p = end = p.prev;
-				if ( p === p.next ) break;
-				again = true;
-
-			} else {
-
-				p = p.next;
-
-			}
-
-		} while ( again || p !== end );
-
-		return end;
-
-	}
-
-	// main ear slicing loop which triangulates a polygon (given as a linked list)
-
-	function earcutLinked( ear, triangles, dim, minX, minY, invSize, pass ) {
-
-		if ( ! ear ) return;
-
-		// interlink polygon nodes in z-order
-
-		if ( ! pass && invSize ) indexCurve( ear, minX, minY, invSize );
-
-		var stop = ear, prev, next;
-
-		// iterate through ears, slicing them one by one
-
-		while ( ear.prev !== ear.next ) {
-
-			prev = ear.prev;
-			next = ear.next;
-
-			if ( invSize ? isEarHashed( ear, minX, minY, invSize ) : isEar( ear ) ) {
-
-				// cut off the triangle
-				triangles.push( prev.i / dim );
-				triangles.push( ear.i / dim );
-				triangles.push( next.i / dim );
-
-				removeNode( ear );
-
-				// skipping the next vertice leads to less sliver triangles
-				ear = next.next;
-				stop = next.next;
-
-				continue;
-
-			}
-
-			ear = next;
-
-			// if we looped through the whole remaining polygon and can't find any more ears
-
-			if ( ear === stop ) {
-
-				// try filtering points and slicing again
-
-				if ( ! pass ) {
-
-					earcutLinked( filterPoints( ear ), triangles, dim, minX, minY, invSize, 1 );
-
-					// if this didn't work, try curing all small self-intersections locally
-
-				} else if ( pass === 1 ) {
-
-					ear = cureLocalIntersections( ear, triangles, dim );
-					earcutLinked( ear, triangles, dim, minX, minY, invSize, 2 );
-
-				// as a last resort, try splitting the remaining polygon into two
-
-				} else if ( pass === 2 ) {
-
-					splitEarcut( ear, triangles, dim, minX, minY, invSize );
-
-				}
-
-				break;
-
-			}
-
-		}
-
-	}
-
-	// check whether a polygon node forms a valid ear with adjacent nodes
-
-	function isEar( ear ) {
-
-		var a = ear.prev,
-			b = ear,
-			c = ear.next;
-
-		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear
-
-		// now make sure we don't have other points inside the potential ear
-		var p = ear.next.next;
-
-		while ( p !== ear.prev ) {
-
-			if ( pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) && area( p.prev, p, p.next ) >= 0 ) {
-
-				return false;
-
-			}
-
-			p = p.next;
-
-		}
-
-		return true;
-
-	}
-
-	function isEarHashed( ear, minX, minY, invSize ) {
-
-		var a = ear.prev,
-			b = ear,
-			c = ear.next;
-
-		if ( area( a, b, c ) >= 0 ) return false; // reflex, can't be an ear
-
-		// triangle bbox; min & max are calculated like this for speed
-
-		var minTX = a.x < b.x ? ( a.x < c.x ? a.x : c.x ) : ( b.x < c.x ? b.x : c.x ),
-			minTY = a.y < b.y ? ( a.y < c.y ? a.y : c.y ) : ( b.y < c.y ? b.y : c.y ),
-			maxTX = a.x > b.x ? ( a.x > c.x ? a.x : c.x ) : ( b.x > c.x ? b.x : c.x ),
-			maxTY = a.y > b.y ? ( a.y > c.y ? a.y : c.y ) : ( b.y > c.y ? b.y : c.y );
-
-		// z-order range for the current triangle bbox;
-
-		var minZ = zOrder( minTX, minTY, minX, minY, invSize ),
-			maxZ = zOrder( maxTX, maxTY, minX, minY, invSize );
-
-		// first look for points inside the triangle in increasing z-order
-
-		var p = ear.nextZ;
-
-		while ( p && p.z <= maxZ ) {
-
-			if ( p !== ear.prev && p !== ear.next &&
-					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
-					area( p.prev, p, p.next ) >= 0 ) return false;
-			p = p.nextZ;
-
-		}
-
-		// then look for points in decreasing z-order
-
-		p = ear.prevZ;
-
-		while ( p && p.z >= minZ ) {
-
-			if ( p !== ear.prev && p !== ear.next &&
-					pointInTriangle( a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y ) &&
-					area( p.prev, p, p.next ) >= 0 ) return false;
-
-			p = p.prevZ;
-
-		}
-
-		return true;
-
-	}
-
-	// go through all polygon nodes and cure small local self-intersections
-
-	function cureLocalIntersections( start, triangles, dim ) {
-
-		var p = start;
-
-		do {
-
-			var a = p.prev, b = p.next.next;
-
-			if ( ! equals( a, b ) && intersects( a, p, p.next, b ) && locallyInside( a, b ) && locallyInside( b, a ) ) {
-
-				triangles.push( a.i / dim );
-				triangles.push( p.i / dim );
-				triangles.push( b.i / dim );
-
-				// remove two nodes involved
-
-				removeNode( p );
-				removeNode( p.next );
-
-				p = start = b;
-
-			}
-
-			p = p.next;
-
-		} while ( p !== start );
-
-		return p;
-
-	}
-
-	// try splitting polygon into two and triangulate them independently
-
-	function splitEarcut( start, triangles, dim, minX, minY, invSize ) {
-
-		// look for a valid diagonal that divides the polygon into two
-
-		var a = start;
-
-		do {
-
-			var b = a.next.next;
-
-			while ( b !== a.prev ) {
-
-				if ( a.i !== b.i && isValidDiagonal( a, b ) ) {
-
-					// split the polygon in two by the diagonal
-
-					var c = splitPolygon( a, b );
-
-					// filter colinear points around the cuts
-
-					a = filterPoints( a, a.next );
-					c = filterPoints( c, c.next );
-
-					// run earcut on each half
-
-					earcutLinked( a, triangles, dim, minX, minY, invSize );
-					earcutLinked( c, triangles, dim, minX, minY, invSize );
-					return;
-
-				}
-
-				b = b.next;
-
-			}
-
-			a = a.next;
-
-		} while ( a !== start );
-
-	}
-
-	// link every hole into the outer loop, producing a single-ring polygon without holes
-
-	function eliminateHoles( data, holeIndices, outerNode, dim ) {
-
-		var queue = [], i, len, start, end, list;
-
-		for ( i = 0, len = holeIndices.length; i < len; i ++ ) {
-
-			start = holeIndices[ i ] * dim;
-			end = i < len - 1 ? holeIndices[ i + 1 ] * dim : data.length;
-			list = linkedList( data, start, end, dim, false );
-			if ( list === list.next ) list.steiner = true;
-			queue.push( getLeftmost( list ) );
-
-		}
-
-		queue.sort( compareX );
-
-		// process holes from left to right
-
-		for ( i = 0; i < queue.length; i ++ ) {
-
-			eliminateHole( queue[ i ], outerNode );
-			outerNode = filterPoints( outerNode, outerNode.next );
-
-		}
-
-		return outerNode;
-
-	}
-
-	function compareX( a, b ) {
-
-		return a.x - b.x;
-
-	}
-
-	// find a bridge between vertices that connects hole with an outer ring and and link it
-
-	function eliminateHole( hole, outerNode ) {
-
-		outerNode = findHoleBridge( hole, outerNode );
-
-		if ( outerNode ) {
-
-			var b = splitPolygon( outerNode, hole );
-
-			filterPoints( b, b.next );
-
-		}
-
-	}
-
-	// David Eberly's algorithm for finding a bridge between hole and outer polygon
-
-	function findHoleBridge( hole, outerNode ) {
-
-		var p = outerNode,
-			hx = hole.x,
-			hy = hole.y,
-			qx = - Infinity,
-			m;
-
-		// find a segment intersected by a ray from the hole's leftmost point to the left;
-		// segment's endpoint with lesser x will be potential connection point
-
-		do {
-
-			if ( hy <= p.y && hy >= p.next.y && p.next.y !== p.y ) {
-
-				var x = p.x + ( hy - p.y ) * ( p.next.x - p.x ) / ( p.next.y - p.y );
-
-				if ( x <= hx && x > qx ) {
-
-					qx = x;
-
-					if ( x === hx ) {
-
-						if ( hy === p.y ) return p;
-						if ( hy === p.next.y ) return p.next;
-
-					}
-
-					m = p.x < p.next.x ? p : p.next;
-
-				}
-
-			}
-
-			p = p.next;
-
-		} while ( p !== outerNode );
-
-		if ( ! m ) return null;
-
-		if ( hx === qx ) return m.prev; // hole touches outer segment; pick lower endpoint
-
-		// look for points inside the triangle of hole point, segment intersection and endpoint;
-		// if there are no points found, we have a valid connection;
-		// otherwise choose the point of the minimum angle with the ray as connection point
-
-		var stop = m,
-			mx = m.x,
-			my = m.y,
-			tanMin = Infinity,
-			tan;
-
-		p = m.next;
-
-		while ( p !== stop ) {
-
-			if ( hx >= p.x && p.x >= mx && hx !== p.x &&
-							pointInTriangle( hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y ) ) {
-
-				tan = Math.abs( hy - p.y ) / ( hx - p.x ); // tangential
-
-				if ( ( tan < tanMin || ( tan === tanMin && p.x > m.x ) ) && locallyInside( p, hole ) ) {
-
-					m = p;
-					tanMin = tan;
-
-				}
-
-			}
-
-			p = p.next;
-
-		}
-
-		return m;
-
-	}
-
-	// interlink polygon nodes in z-order
-
-	function indexCurve( start, minX, minY, invSize ) {
-
-		var p = start;
-
-		do {
-
-			if ( p.z === null ) p.z = zOrder( p.x, p.y, minX, minY, invSize );
-			p.prevZ = p.prev;
-			p.nextZ = p.next;
-			p = p.next;
-
-		} while ( p !== start );
-
-		p.prevZ.nextZ = null;
-		p.prevZ = null;
-
-		sortLinked( p );
-
-	}
-
-	// Simon Tatham's linked list merge sort algorithm
-	// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
-
-	function sortLinked( list ) {
-
-		var i, p, q, e, tail, numMerges, pSize, qSize, inSize = 1;
-
-		do {
-
-			p = list;
-			list = null;
-			tail = null;
-			numMerges = 0;
-
-			while ( p ) {
-
-				numMerges ++;
-				q = p;
-				pSize = 0;
-
-				for ( i = 0; i < inSize; i ++ ) {
-
-					pSize ++;
-					q = q.nextZ;
-					if ( ! q ) break;
-
-				}
-
-				qSize = inSize;
-
-				while ( pSize > 0 || ( qSize > 0 && q ) ) {
-
-					if ( pSize !== 0 && ( qSize === 0 || ! q || p.z <= q.z ) ) {
-
-						e = p;
-						p = p.nextZ;
-						pSize --;
-
-					} else {
-
-						e = q;
-						q = q.nextZ;
-						qSize --;
-
-					}
-
-					if ( tail ) tail.nextZ = e;
-					else list = e;
-
-					e.prevZ = tail;
-					tail = e;
-
-				}
-
-				p = q;
-
-			}
-
-			tail.nextZ = null;
-			inSize *= 2;
-
-		} while ( numMerges > 1 );
-
-		return list;
-
-	}
-
-	// z-order of a point given coords and inverse of the longer side of data bbox
-
-	function zOrder( x, y, minX, minY, invSize ) {
-
-		// coords are transformed into non-negative 15-bit integer range
-
-		x = 32767 * ( x - minX ) * invSize;
-		y = 32767 * ( y - minY ) * invSize;
-
-		x = ( x | ( x << 8 ) ) & 0x00FF00FF;
-		x = ( x | ( x << 4 ) ) & 0x0F0F0F0F;
-		x = ( x | ( x << 2 ) ) & 0x33333333;
-		x = ( x | ( x << 1 ) ) & 0x55555555;
-
-		y = ( y | ( y << 8 ) ) & 0x00FF00FF;
-		y = ( y | ( y << 4 ) ) & 0x0F0F0F0F;
-		y = ( y | ( y << 2 ) ) & 0x33333333;
-		y = ( y | ( y << 1 ) ) & 0x55555555;
-
-		return x | ( y << 1 );
-
-	}
-
-	// find the leftmost node of a polygon ring
-
-	function getLeftmost( start ) {
-
-		var p = start, leftmost = start;
-
-		do {
-
-			if ( p.x < leftmost.x ) leftmost = p;
-			p = p.next;
-
-		} while ( p !== start );
-
-		return leftmost;
-
-	}
-
-	// check if a point lies within a convex triangle
-
-	function pointInTriangle( ax, ay, bx, by, cx, cy, px, py ) {
-
-		return ( cx - px ) * ( ay - py ) - ( ax - px ) * ( cy - py ) >= 0 &&
-		 ( ax - px ) * ( by - py ) - ( bx - px ) * ( ay - py ) >= 0 &&
-		 ( bx - px ) * ( cy - py ) - ( cx - px ) * ( by - py ) >= 0;
-
-	}
-
-	// check if a diagonal between two polygon nodes is valid (lies in polygon interior)
-
-	function isValidDiagonal( a, b ) {
-
-		return a.next.i !== b.i && a.prev.i !== b.i && ! intersectsPolygon( a, b ) &&
-			locallyInside( a, b ) && locallyInside( b, a ) && middleInside( a, b );
-
-	}
-
-	// signed area of a triangle
-
-	function area( p, q, r ) {
-
-		return ( q.y - p.y ) * ( r.x - q.x ) - ( q.x - p.x ) * ( r.y - q.y );
-
-	}
-
-	// check if two points are equal
-
-	function equals( p1, p2 ) {
-
-		return p1.x === p2.x && p1.y === p2.y;
-
-	}
-
-	// check if two segments intersect
-
-	function intersects( p1, q1, p2, q2 ) {
-
-		if ( ( equals( p1, q1 ) && equals( p2, q2 ) ) ||
-				( equals( p1, q2 ) && equals( p2, q1 ) ) ) return true;
-
-		return area( p1, q1, p2 ) > 0 !== area( p1, q1, q2 ) > 0 &&
-					 area( p2, q2, p1 ) > 0 !== area( p2, q2, q1 ) > 0;
-
-	}
-
-	// check if a polygon diagonal intersects any polygon segments
-
-	function intersectsPolygon( a, b ) {
-
-		var p = a;
-
-		do {
-
-			if ( p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
-							intersects( p, p.next, a, b ) ) {
-
-				return true;
-
-			}
-
-			p = p.next;
-
-		} while ( p !== a );
-
-		return false;
-
-	}
-
-	// check if a polygon diagonal is locally inside the polygon
-
-	function locallyInside( a, b ) {
-
-		return area( a.prev, a, a.next ) < 0 ?
-			area( a, b, a.next ) >= 0 && area( a, a.prev, b ) >= 0 :
-			area( a, b, a.prev ) < 0 || area( a, a.next, b ) < 0;
-
-	}
-
-	// check if the middle point of a polygon diagonal is inside the polygon
-
-	function middleInside( a, b ) {
-
-		var p = a,
-			inside = false,
-			px = ( a.x + b.x ) / 2,
-			py = ( a.y + b.y ) / 2;
-
-		do {
-
-			if ( ( ( p.y > py ) !== ( p.next.y > py ) ) && p.next.y !== p.y &&
-							( px < ( p.next.x - p.x ) * ( py - p.y ) / ( p.next.y - p.y ) + p.x ) ) {
-
-				inside = ! inside;
-
-			}
-
-			p = p.next;
-
-		} while ( p !== a );
-
-		return inside;
-
-	}
-
-	// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
-	// if one belongs to the outer ring and another to a hole, it merges it into a single ring
-
-	function splitPolygon( a, b ) {
-
-		var a2 = new Node( a.i, a.x, a.y ),
-			b2 = new Node( b.i, b.x, b.y ),
-			an = a.next,
-			bp = b.prev;
-
-		a.next = b;
-		b.prev = a;
-
-		a2.next = an;
-		an.prev = a2;
-
-		b2.next = a2;
-		a2.prev = b2;
-
-		bp.next = b2;
-		b2.prev = bp;
-
-		return b2;
-
-	}
-
-	// create a node and optionally link it with previous one (in a circular doubly linked list)
-
-	function insertNode( i, x, y, last ) {
-
-		var p = new Node( i, x, y );
-
-		if ( ! last ) {
-
-			p.prev = p;
-			p.next = p;
-
-		} else {
-
-			p.next = last.next;
-			p.prev = last;
-			last.next.prev = p;
-			last.next = p;
-
-		}
-
-		return p;
-
-	}
-
-	function removeNode( p ) {
-
-		p.next.prev = p.prev;
-		p.prev.next = p.next;
-
-		if ( p.prevZ ) p.prevZ.nextZ = p.nextZ;
-		if ( p.nextZ ) p.nextZ.prevZ = p.prevZ;
-
-	}
-
-	function Node( i, x, y ) {
-
-		// vertice index in coordinates array
-		this.i = i;
-
-		// vertex coordinates
-		this.x = x;
-		this.y = y;
-
-		// previous and next vertice nodes in a polygon ring
-		this.prev = null;
-		this.next = null;
-
-		// z-order curve value
-		this.z = null;
-
-		// previous and next nodes in z-order
-		this.prevZ = null;
-		this.nextZ = null;
-
-		// indicates whether this is a steiner point
-		this.steiner = false;
-
-	}
-
-	function signedArea( data, start, end, dim ) {
-
-		var sum = 0;
-
-		for ( var i = start, j = end - dim; i < end; i += dim ) {
-
-			sum += ( data[ j ] - data[ i ] ) * ( data[ i + 1 ] + data[ j + 1 ] );
-			j = i;
-
-		}
-
-		return sum;
-
-	}
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 */
-
-	var ShapeUtils = {
-
-		// calculate area of the contour polygon
-
-		area: function ( contour ) {
-
-			var n = contour.length;
-			var a = 0.0;
-
-			for ( var p = n - 1, q = 0; q < n; p = q ++ ) {
-
-				a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;
-
-			}
-
-			return a * 0.5;
-
-		},
-
-		isClockWise: function ( pts ) {
-
-			return ShapeUtils.area( pts ) < 0;
-
-		},
-
-		triangulateShape: function ( contour, holes ) {
-
-			var vertices = []; // flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
-			var holeIndices = []; // array of hole indices
-			var faces = []; // final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]
-
-			removeDupEndPts( contour );
-			addContour( vertices, contour );
-
-			//
-
-			var holeIndex = contour.length;
-
-			holes.forEach( removeDupEndPts );
-
-			for ( var i = 0; i < holes.length; i ++ ) {
-
-				holeIndices.push( holeIndex );
-				holeIndex += holes[ i ].length;
-				addContour( vertices, holes[ i ] );
-
-			}
-
-			//
-
-			var triangles = Earcut.triangulate( vertices, holeIndices );
-
-			//
-
-			for ( var i = 0; i < triangles.length; i += 3 ) {
-
-				faces.push( triangles.slice( i, i + 3 ) );
-
-			}
-
-			return faces;
-
-		}
-
-	};
-
-	function removeDupEndPts( points ) {
-
-		var l = points.length;
-
-		if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {
-
-			points.pop();
-
-		}
-
-	}
-
-	function addContour( vertices, contour ) {
-
-		for ( var i = 0; i < contour.length; i ++ ) {
-
-			vertices.push( contour[ i ].x );
-			vertices.push( contour[ i ].y );
-
-		}
-
-	}
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 *
-	 * Creates extruded geometry from a path shape.
-	 *
-	 * parameters = {
-	 *
-	 *  curveSegments: <int>, // number of points on the curves
-	 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
-	 *  amount: <int>, // Depth to extrude the shape
-	 *
-	 *  bevelEnabled: <bool>, // turn on bevel
-	 *  bevelThickness: <float>, // how deep into the original shape bevel goes
-	 *  bevelSize: <float>, // how far from shape outline is bevel
-	 *  bevelSegments: <int>, // number of bevel layers
-	 *
-	 *  extrudePath: <THREE.Curve> // curve to extrude shape along
-	 *  frames: <Object> // containing arrays of tangents, normals, binormals
-	 *
-	 *  UVGenerator: <Object> // object that provides UV generator functions
-	 *
-	 * }
-	 */
-
-	// ExtrudeGeometry
-
-	function ExtrudeGeometry( shapes, options ) {
-
-		Geometry.call( this );
-
-		this.type = 'ExtrudeGeometry';
-
-		this.parameters = {
-			shapes: shapes,
-			options: options
-		};
-
-		this.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );
-		this.mergeVertices();
-
-	}
-
-	ExtrudeGeometry.prototype = Object.create( Geometry.prototype );
-	ExtrudeGeometry.prototype.constructor = ExtrudeGeometry;
-
-	// ExtrudeBufferGeometry
-
-	function ExtrudeBufferGeometry( shapes, options ) {
-
-		if ( typeof ( shapes ) === "undefined" ) {
-
-			return;
-
-		}
-
-		BufferGeometry.call( this );
-
-		this.type = 'ExtrudeBufferGeometry';
-
-		shapes = Array.isArray( shapes ) ? shapes : [ shapes ];
-
-		this.addShapeList( shapes, options );
-
-		this.computeVertexNormals();
-
-		// can't really use automatic vertex normals
-		// as then front and back sides get smoothed too
-		// should do separate smoothing just for sides
-
-		//this.computeVertexNormals();
-
-		//console.log( "took", ( Date.now() - startTime ) );
-
-	}
-
-	ExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	ExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;
-
-	ExtrudeBufferGeometry.prototype.getArrays = function () {
-
-		var positionAttribute = this.getAttribute( "position" );
-		var verticesArray = positionAttribute ? Array.prototype.slice.call( positionAttribute.array ) : [];
-
-		var uvAttribute = this.getAttribute( "uv" );
-		var uvArray = uvAttribute ? Array.prototype.slice.call( uvAttribute.array ) : [];
-
-		var IndexAttribute = this.index;
-		var indicesArray = IndexAttribute ? Array.prototype.slice.call( IndexAttribute.array ) : [];
-
-		return {
-			position: verticesArray,
-			uv: uvArray,
-			index: indicesArray
-		};
-
-	};
-
-	ExtrudeBufferGeometry.prototype.addShapeList = function ( shapes, options ) {
-
-		var sl = shapes.length;
-		options.arrays = this.getArrays();
-
-		for ( var s = 0; s < sl; s ++ ) {
-
-			var shape = shapes[ s ];
-			this.addShape( shape, options );
-
-		}
-
-		this.setIndex( options.arrays.index );
-		this.addAttribute( 'position', new Float32BufferAttribute( options.arrays.position, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( options.arrays.uv, 2 ) );
-
-	};
-
-	ExtrudeBufferGeometry.prototype.addShape = function ( shape, options ) {
-
-		var arrays = options.arrays ? options.arrays : this.getArrays();
-		var verticesArray = arrays.position;
-		var indicesArray = arrays.index;
-		var uvArray = arrays.uv;
-
-		var placeholder = [];
-
-
-		var amount = options.amount !== undefined ? options.amount : 100;
-
-		var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6; // 10
-		var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2; // 8
-		var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;
-
-		var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; // false
-
-		var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;
-
-		var steps = options.steps !== undefined ? options.steps : 1;
-
-		var extrudePath = options.extrudePath;
-		var extrudePts, extrudeByPath = false;
-
-		// Use default WorldUVGenerator if no UV generators are specified.
-		var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : ExtrudeGeometry.WorldUVGenerator;
-
-		var splineTube, binormal, normal, position2;
-		if ( extrudePath ) {
-
-			extrudePts = extrudePath.getSpacedPoints( steps );
-
-			extrudeByPath = true;
-			bevelEnabled = false; // bevels not supported for path extrusion
-
-			// SETUP TNB variables
-
-			// TODO1 - have a .isClosed in spline?
-
-			splineTube = options.frames !== undefined ? options.frames : extrudePath.computeFrenetFrames( steps, false );
-
-			// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);
-
-			binormal = new Vector3();
-			normal = new Vector3();
-			position2 = new Vector3();
-
-		}
-
-		// Safeguards if bevels are not enabled
-
-		if ( ! bevelEnabled ) {
-
-			bevelSegments = 0;
-			bevelThickness = 0;
-			bevelSize = 0;
-
-		}
-
-		// Variables initialization
-
-		var ahole, h, hl; // looping of holes
-		var scope = this;
-
-		var shapePoints = shape.extractPoints( curveSegments );
-
-		var vertices = shapePoints.shape;
-		var holes = shapePoints.holes;
-
-		var reverse = ! ShapeUtils.isClockWise( vertices );
-
-		if ( reverse ) {
-
-			vertices = vertices.reverse();
-
-			// Maybe we should also check if holes are in the opposite direction, just to be safe ...
-
-			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-				ahole = holes[ h ];
-
-				if ( ShapeUtils.isClockWise( ahole ) ) {
-
-					holes[ h ] = ahole.reverse();
-
-				}
-
-			}
-
-		}
-
-
-		var faces = ShapeUtils.triangulateShape( vertices, holes );
-
-		/* Vertices */
-
-		var contour = vertices; // vertices has all points but contour has only points of circumference
-
-		for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-			ahole = holes[ h ];
-
-			vertices = vertices.concat( ahole );
-
-		}
-
-
-		function scalePt2( pt, vec, size ) {
-
-			if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" );
-
-			return vec.clone().multiplyScalar( size ).add( pt );
-
-		}
-
-		var b, bs, t, z,
-			vert, vlen = vertices.length,
-			face, flen = faces.length;
-
-
-		// Find directions for point movement
-
-
-		function getBevelVec( inPt, inPrev, inNext ) {
-
-			// computes for inPt the corresponding point inPt' on a new contour
-			//   shifted by 1 unit (length of normalized vector) to the left
-			// if we walk along contour clockwise, this new contour is outside the old one
-			//
-			// inPt' is the intersection of the two lines parallel to the two
-			//  adjacent edges of inPt at a distance of 1 unit on the left side.
-
-			var v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt
-
-			// good reading for geometry algorithms (here: line-line intersection)
-			// http://geomalgorithms.com/a05-_intersect-1.html
-
-			var v_prev_x = inPt.x - inPrev.x,
-				v_prev_y = inPt.y - inPrev.y;
-			var v_next_x = inNext.x - inPt.x,
-				v_next_y = inNext.y - inPt.y;
-
-			var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );
-
-			// check for collinear edges
-			var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );
-
-			if ( Math.abs( collinear0 ) > Number.EPSILON ) {
-
-				// not collinear
-
-				// length of vectors for normalizing
-
-				var v_prev_len = Math.sqrt( v_prev_lensq );
-				var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );
-
-				// shift adjacent points by unit vectors to the left
-
-				var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
-				var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );
-
-				var ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
-				var ptNextShift_y = ( inNext.y + v_next_x / v_next_len );
-
-				// scaling factor for v_prev to intersection point
-
-				var sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
-						( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
-					( v_prev_x * v_next_y - v_prev_y * v_next_x );
-
-				// vector from inPt to intersection point
-
-				v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
-				v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );
-
-				// Don't normalize!, otherwise sharp corners become ugly
-				//  but prevent crazy spikes
-				var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
-				if ( v_trans_lensq <= 2 ) {
-
-					return new Vector2( v_trans_x, v_trans_y );
-
-				} else {
-
-					shrink_by = Math.sqrt( v_trans_lensq / 2 );
-
-				}
-
-			} else {
-
-				// handle special case of collinear edges
-
-				var direction_eq = false; // assumes: opposite
-				if ( v_prev_x > Number.EPSILON ) {
-
-					if ( v_next_x > Number.EPSILON ) {
-
-						direction_eq = true;
-
-					}
-
-				} else {
-
-					if ( v_prev_x < - Number.EPSILON ) {
-
-						if ( v_next_x < - Number.EPSILON ) {
-
-							direction_eq = true;
-
-						}
-
-					} else {
-
-						if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {
-
-							direction_eq = true;
-
-						}
-
-					}
-
-				}
-
-				if ( direction_eq ) {
-
-					// console.log("Warning: lines are a straight sequence");
-					v_trans_x = - v_prev_y;
-					v_trans_y = v_prev_x;
-					shrink_by = Math.sqrt( v_prev_lensq );
-
-				} else {
-
-					// console.log("Warning: lines are a straight spike");
-					v_trans_x = v_prev_x;
-					v_trans_y = v_prev_y;
-					shrink_by = Math.sqrt( v_prev_lensq / 2 );
-
-				}
-
-			}
-
-			return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );
-
-		}
-
-
-		var contourMovements = [];
-
-		for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
-
-			if ( j === il ) j = 0;
-			if ( k === il ) k = 0;
-
-			//  (j)---(i)---(k)
-			// console.log('i,j,k', i, j , k)
-
-			contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );
-
-		}
-
-		var holesMovements = [],
-			oneHoleMovements, verticesMovements = contourMovements.concat();
-
-		for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-			ahole = holes[ h ];
-
-			oneHoleMovements = [];
-
-			for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {
-
-				if ( j === il ) j = 0;
-				if ( k === il ) k = 0;
-
-				//  (j)---(i)---(k)
-				oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );
-
-			}
-
-			holesMovements.push( oneHoleMovements );
-			verticesMovements = verticesMovements.concat( oneHoleMovements );
-
-		}
-
-
-		// Loop bevelSegments, 1 for the front, 1 for the back
-
-		for ( b = 0; b < bevelSegments; b ++ ) {
-
-			//for ( b = bevelSegments; b > 0; b -- ) {
-
-			t = b / bevelSegments;
-			z = bevelThickness * Math.cos( t * Math.PI / 2 );
-			bs = bevelSize * Math.sin( t * Math.PI / 2 );
-
-			// contract shape
-
-			for ( i = 0, il = contour.length; i < il; i ++ ) {
-
-				vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
-
-				v( vert.x, vert.y, - z );
-
-			}
-
-			// expand holes
-
-			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-				ahole = holes[ h ];
-				oneHoleMovements = holesMovements[ h ];
-
-				for ( i = 0, il = ahole.length; i < il; i ++ ) {
-
-					vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
-
-					v( vert.x, vert.y, - z );
-
-				}
-
-			}
-
-		}
-
-		bs = bevelSize;
-
-		// Back facing vertices
-
-		for ( i = 0; i < vlen; i ++ ) {
-
-			vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
-
-			if ( ! extrudeByPath ) {
-
-				v( vert.x, vert.y, 0 );
-
-			} else {
-
-				// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
-
-				normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
-				binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );
-
-				position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );
-
-				v( position2.x, position2.y, position2.z );
-
-			}
-
-		}
-
-		// Add stepped vertices...
-		// Including front facing vertices
-
-		var s;
-
-		for ( s = 1; s <= steps; s ++ ) {
-
-			for ( i = 0; i < vlen; i ++ ) {
-
-				vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];
-
-				if ( ! extrudeByPath ) {
-
-					v( vert.x, vert.y, amount / steps * s );
-
-				} else {
-
-					// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
-
-					normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
-					binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );
-
-					position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );
-
-					v( position2.x, position2.y, position2.z );
-
-				}
-
-			}
-
-		}
-
-
-		// Add bevel segments planes
-
-		//for ( b = 1; b <= bevelSegments; b ++ ) {
-		for ( b = bevelSegments - 1; b >= 0; b -- ) {
-
-			t = b / bevelSegments;
-			z = bevelThickness * Math.cos( t * Math.PI / 2 );
-			bs = bevelSize * Math.sin( t * Math.PI / 2 );
-
-			// contract shape
-
-			for ( i = 0, il = contour.length; i < il; i ++ ) {
-
-				vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
-				v( vert.x, vert.y, amount + z );
-
-			}
-
-			// expand holes
-
-			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-				ahole = holes[ h ];
-				oneHoleMovements = holesMovements[ h ];
-
-				for ( i = 0, il = ahole.length; i < il; i ++ ) {
-
-					vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );
-
-					if ( ! extrudeByPath ) {
-
-						v( vert.x, vert.y, amount + z );
-
-					} else {
-
-						v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );
-
-					}
-
-				}
-
-			}
-
-		}
-
-		/* Faces */
-
-		// Top and bottom faces
-
-		buildLidFaces();
-
-		// Sides faces
-
-		buildSideFaces();
-
-
-		/////  Internal functions
-
-		function buildLidFaces() {
-
-			var start = verticesArray.length / 3;
-
-			if ( bevelEnabled ) {
-
-				var layer = 0; // steps + 1
-				var offset = vlen * layer;
-
-				// Bottom faces
-
-				for ( i = 0; i < flen; i ++ ) {
-
-					face = faces[ i ];
-					f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );
-
-				}
-
-				layer = steps + bevelSegments * 2;
-				offset = vlen * layer;
-
-				// Top faces
-
-				for ( i = 0; i < flen; i ++ ) {
-
-					face = faces[ i ];
-					f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );
-
-				}
-
-			} else {
-
-				// Bottom faces
-
-				for ( i = 0; i < flen; i ++ ) {
-
-					face = faces[ i ];
-					f3( face[ 2 ], face[ 1 ], face[ 0 ] );
-
-				}
-
-				// Top faces
-
-				for ( i = 0; i < flen; i ++ ) {
-
-					face = faces[ i ];
-					f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );
-
-				}
-
-			}
-
-			scope.addGroup( start, verticesArray.length / 3 - start, options.material !== undefined ? options.material : 0 );
-
-		}
-
-		// Create faces for the z-sides of the shape
-
-		function buildSideFaces() {
-
-			var start = verticesArray.length / 3;
-			var layeroffset = 0;
-			sidewalls( contour, layeroffset );
-			layeroffset += contour.length;
-
-			for ( h = 0, hl = holes.length; h < hl; h ++ ) {
-
-				ahole = holes[ h ];
-				sidewalls( ahole, layeroffset );
-
-				//, true
-				layeroffset += ahole.length;
-
-			}
-
-
-			scope.addGroup( start, verticesArray.length / 3 - start, options.extrudeMaterial !== undefined ? options.extrudeMaterial : 1 );
-
-
-		}
-
-		function sidewalls( contour, layeroffset ) {
-
-			var j, k;
-			i = contour.length;
-
-			while ( -- i >= 0 ) {
-
-				j = i;
-				k = i - 1;
-				if ( k < 0 ) k = contour.length - 1;
-
-				//console.log('b', i,j, i-1, k,vertices.length);
-
-				var s = 0,
-					sl = steps + bevelSegments * 2;
-
-				for ( s = 0; s < sl; s ++ ) {
-
-					var slen1 = vlen * s;
-					var slen2 = vlen * ( s + 1 );
-
-					var a = layeroffset + j + slen1,
-						b = layeroffset + k + slen1,
-						c = layeroffset + k + slen2,
-						d = layeroffset + j + slen2;
-
-					f4( a, b, c, d );
-
-				}
-
-			}
-
-		}
-
-		function v( x, y, z ) {
-
-			placeholder.push( x );
-			placeholder.push( y );
-			placeholder.push( z );
-
-		}
-
-
-		function f3( a, b, c ) {
-
-			addVertex( a );
-			addVertex( b );
-			addVertex( c );
-
-			var nextIndex = verticesArray.length / 3;
-			var uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
-
-			addUV( uvs[ 0 ] );
-			addUV( uvs[ 1 ] );
-			addUV( uvs[ 2 ] );
-
-		}
-
-		function f4( a, b, c, d ) {
-
-			addVertex( a );
-			addVertex( b );
-			addVertex( d );
-
-			addVertex( b );
-			addVertex( c );
-			addVertex( d );
-
-
-			var nextIndex = verticesArray.length / 3;
-			var uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );
-
-			addUV( uvs[ 0 ] );
-			addUV( uvs[ 1 ] );
-			addUV( uvs[ 3 ] );
-
-			addUV( uvs[ 1 ] );
-			addUV( uvs[ 2 ] );
-			addUV( uvs[ 3 ] );
-
-		}
-
-		function addVertex( index ) {
-
-			indicesArray.push( verticesArray.length / 3 );
-			verticesArray.push( placeholder[ index * 3 + 0 ] );
-			verticesArray.push( placeholder[ index * 3 + 1 ] );
-			verticesArray.push( placeholder[ index * 3 + 2 ] );
-
-		}
-
-
-		function addUV( vector2 ) {
-
-			uvArray.push( vector2.x );
-			uvArray.push( vector2.y );
-
-		}
-
-		if ( ! options.arrays ) {
-
-			this.setIndex( indicesArray );
-			this.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
-			this.addAttribute( 'uv', new Float32BufferAttribute( uvArray, 2 ) );
-
-		}
-
-	};
-
-	ExtrudeGeometry.WorldUVGenerator = {
-
-		generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {
-
-			var a_x = vertices[ indexA * 3 ];
-			var a_y = vertices[ indexA * 3 + 1 ];
-			var b_x = vertices[ indexB * 3 ];
-			var b_y = vertices[ indexB * 3 + 1 ];
-			var c_x = vertices[ indexC * 3 ];
-			var c_y = vertices[ indexC * 3 + 1 ];
-
-			return [
-				new Vector2( a_x, a_y ),
-				new Vector2( b_x, b_y ),
-				new Vector2( c_x, c_y )
-			];
-
-		},
-
-		generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {
-
-			var a_x = vertices[ indexA * 3 ];
-			var a_y = vertices[ indexA * 3 + 1 ];
-			var a_z = vertices[ indexA * 3 + 2 ];
-			var b_x = vertices[ indexB * 3 ];
-			var b_y = vertices[ indexB * 3 + 1 ];
-			var b_z = vertices[ indexB * 3 + 2 ];
-			var c_x = vertices[ indexC * 3 ];
-			var c_y = vertices[ indexC * 3 + 1 ];
-			var c_z = vertices[ indexC * 3 + 2 ];
-			var d_x = vertices[ indexD * 3 ];
-			var d_y = vertices[ indexD * 3 + 1 ];
-			var d_z = vertices[ indexD * 3 + 2 ];
-
-			if ( Math.abs( a_y - b_y ) < 0.01 ) {
-
-				return [
-					new Vector2( a_x, 1 - a_z ),
-					new Vector2( b_x, 1 - b_z ),
-					new Vector2( c_x, 1 - c_z ),
-					new Vector2( d_x, 1 - d_z )
-				];
-
-			} else {
-
-				return [
-					new Vector2( a_y, 1 - a_z ),
-					new Vector2( b_y, 1 - b_z ),
-					new Vector2( c_y, 1 - c_z ),
-					new Vector2( d_y, 1 - d_z )
-				];
-
-			}
-
-		}
-	};
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * Text = 3D Text
-	 *
-	 * parameters = {
-	 *  font: <THREE.Font>, // font
-	 *
-	 *  size: <float>, // size of the text
-	 *  height: <float>, // thickness to extrude text
-	 *  curveSegments: <int>, // number of points on the curves
-	 *
-	 *  bevelEnabled: <bool>, // turn on bevel
-	 *  bevelThickness: <float>, // how deep into text bevel goes
-	 *  bevelSize: <float> // how far from text outline is bevel
-	 * }
-	 */
-
-	// TextGeometry
-
-	function TextGeometry( text, parameters ) {
-
-		Geometry.call( this );
-
-		this.type = 'TextGeometry';
-
-		this.parameters = {
-			text: text,
-			parameters: parameters
-		};
-
-		this.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );
-		this.mergeVertices();
-
-	}
-
-	TextGeometry.prototype = Object.create( Geometry.prototype );
-	TextGeometry.prototype.constructor = TextGeometry;
-
-	// TextBufferGeometry
-
-	function TextBufferGeometry( text, parameters ) {
-
-		parameters = parameters || {};
-
-		var font = parameters.font;
-
-		if ( ! ( font && font.isFont ) ) {
-
-			console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );
-			return new Geometry();
-
-		}
-
-		var shapes = font.generateShapes( text, parameters.size, parameters.curveSegments );
-
-		// translate parameters to ExtrudeGeometry API
-
-		parameters.amount = parameters.height !== undefined ? parameters.height : 50;
-
-		// defaults
-
-		if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;
-		if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;
-		if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;
-
-		ExtrudeBufferGeometry.call( this, shapes, parameters );
-
-		this.type = 'TextBufferGeometry';
-
-	}
-
-	TextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );
-	TextBufferGeometry.prototype.constructor = TextBufferGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// SphereGeometry
-
-	function SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'SphereGeometry';
-
-		this.parameters = {
-			radius: radius,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			phiStart: phiStart,
-			phiLength: phiLength,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	SphereGeometry.prototype = Object.create( Geometry.prototype );
-	SphereGeometry.prototype.constructor = SphereGeometry;
-
-	// SphereBufferGeometry
-
-	function SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'SphereBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			widthSegments: widthSegments,
-			heightSegments: heightSegments,
-			phiStart: phiStart,
-			phiLength: phiLength,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		radius = radius || 1;
-
-		widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );
-		heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );
-
-		phiStart = phiStart !== undefined ? phiStart : 0;
-		phiLength = phiLength !== undefined ? phiLength : Math.PI * 2;
-
-		thetaStart = thetaStart !== undefined ? thetaStart : 0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI;
-
-		var thetaEnd = thetaStart + thetaLength;
-
-		var ix, iy;
-
-		var index = 0;
-		var grid = [];
-
-		var vertex = new Vector3();
-		var normal = new Vector3();
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// generate vertices, normals and uvs
-
-		for ( iy = 0; iy <= heightSegments; iy ++ ) {
-
-			var verticesRow = [];
-
-			var v = iy / heightSegments;
-
-			for ( ix = 0; ix <= widthSegments; ix ++ ) {
-
-				var u = ix / widthSegments;
-
-				// vertex
-
-				vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
-				vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
-				vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				normal.set( vertex.x, vertex.y, vertex.z ).normalize();
-				normals.push( normal.x, normal.y, normal.z );
-
-				// uv
-
-				uvs.push( u, 1 - v );
-
-				verticesRow.push( index ++ );
-
-			}
-
-			grid.push( verticesRow );
-
-		}
-
-		// indices
-
-		for ( iy = 0; iy < heightSegments; iy ++ ) {
-
-			for ( ix = 0; ix < widthSegments; ix ++ ) {
-
-				var a = grid[ iy ][ ix + 1 ];
-				var b = grid[ iy ][ ix ];
-				var c = grid[ iy + 1 ][ ix ];
-				var d = grid[ iy + 1 ][ ix + 1 ];
-
-				if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
-				if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	SphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	SphereBufferGeometry.prototype.constructor = SphereBufferGeometry;
-
-	/**
-	 * @author Kaleb Murphy
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// RingGeometry
-
-	function RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'RingGeometry';
-
-		this.parameters = {
-			innerRadius: innerRadius,
-			outerRadius: outerRadius,
-			thetaSegments: thetaSegments,
-			phiSegments: phiSegments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	RingGeometry.prototype = Object.create( Geometry.prototype );
-	RingGeometry.prototype.constructor = RingGeometry;
-
-	// RingBufferGeometry
-
-	function RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'RingBufferGeometry';
-
-		this.parameters = {
-			innerRadius: innerRadius,
-			outerRadius: outerRadius,
-			thetaSegments: thetaSegments,
-			phiSegments: phiSegments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		innerRadius = innerRadius || 0.5;
-		outerRadius = outerRadius || 1;
-
-		thetaStart = thetaStart !== undefined ? thetaStart : 0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
-
-		thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
-		phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// some helper variables
-
-		var segment;
-		var radius = innerRadius;
-		var radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
-		var vertex = new Vector3();
-		var uv = new Vector2();
-		var j, i;
-
-		// generate vertices, normals and uvs
-
-		for ( j = 0; j <= phiSegments; j ++ ) {
-
-			for ( i = 0; i <= thetaSegments; i ++ ) {
-
-				// values are generate from the inside of the ring to the outside
-
-				segment = thetaStart + i / thetaSegments * thetaLength;
-
-				// vertex
-
-				vertex.x = radius * Math.cos( segment );
-				vertex.y = radius * Math.sin( segment );
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				normals.push( 0, 0, 1 );
-
-				// uv
-
-				uv.x = ( vertex.x / outerRadius + 1 ) / 2;
-				uv.y = ( vertex.y / outerRadius + 1 ) / 2;
-
-				uvs.push( uv.x, uv.y );
-
-			}
-
-			// increase the radius for next row of vertices
-
-			radius += radiusStep;
-
-		}
-
-		// indices
-
-		for ( j = 0; j < phiSegments; j ++ ) {
-
-			var thetaSegmentLevel = j * ( thetaSegments + 1 );
-
-			for ( i = 0; i < thetaSegments; i ++ ) {
-
-				segment = i + thetaSegmentLevel;
-
-				var a = segment;
-				var b = segment + thetaSegments + 1;
-				var c = segment + thetaSegments + 2;
-				var d = segment + 1;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	RingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	RingBufferGeometry.prototype.constructor = RingBufferGeometry;
-
-	/**
-	 * @author astrodud / http://astrodud.isgreat.org/
-	 * @author zz85 / https://github.com/zz85
-	 * @author bhouston / http://clara.io
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// LatheGeometry
-
-	function LatheGeometry( points, segments, phiStart, phiLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'LatheGeometry';
-
-		this.parameters = {
-			points: points,
-			segments: segments,
-			phiStart: phiStart,
-			phiLength: phiLength
-		};
-
-		this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );
-		this.mergeVertices();
-
-	}
-
-	LatheGeometry.prototype = Object.create( Geometry.prototype );
-	LatheGeometry.prototype.constructor = LatheGeometry;
-
-	// LatheBufferGeometry
-
-	function LatheBufferGeometry( points, segments, phiStart, phiLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'LatheBufferGeometry';
-
-		this.parameters = {
-			points: points,
-			segments: segments,
-			phiStart: phiStart,
-			phiLength: phiLength
-		};
-
-		segments = Math.floor( segments ) || 12;
-		phiStart = phiStart || 0;
-		phiLength = phiLength || Math.PI * 2;
-
-		// clamp phiLength so it's in range of [ 0, 2PI ]
-
-		phiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );
-
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var uvs = [];
-
-		// helper variables
-
-		var base;
-		var inverseSegments = 1.0 / segments;
-		var vertex = new Vector3();
-		var uv = new Vector2();
-		var i, j;
-
-		// generate vertices and uvs
-
-		for ( i = 0; i <= segments; i ++ ) {
-
-			var phi = phiStart + i * inverseSegments * phiLength;
-
-			var sin = Math.sin( phi );
-			var cos = Math.cos( phi );
-
-			for ( j = 0; j <= ( points.length - 1 ); j ++ ) {
-
-				// vertex
-
-				vertex.x = points[ j ].x * sin;
-				vertex.y = points[ j ].y;
-				vertex.z = points[ j ].x * cos;
-
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// uv
-
-				uv.x = i / segments;
-				uv.y = j / ( points.length - 1 );
-
-				uvs.push( uv.x, uv.y );
-
-
-			}
-
-		}
-
-		// indices
-
-		for ( i = 0; i < segments; i ++ ) {
-
-			for ( j = 0; j < ( points.length - 1 ); j ++ ) {
-
-				base = j + i * points.length;
-
-				var a = base;
-				var b = base + points.length;
-				var c = base + points.length + 1;
-				var d = base + 1;
-
-				// faces
-
-				indices.push( a, b, d );
-				indices.push( b, c, d );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		// generate normals
-
-		this.computeVertexNormals();
-
-		// if the geometry is closed, we need to average the normals along the seam.
-		// because the corresponding vertices are identical (but still have different UVs).
-
-		if ( phiLength === Math.PI * 2 ) {
-
-			var normals = this.attributes.normal.array;
-			var n1 = new Vector3();
-			var n2 = new Vector3();
-			var n = new Vector3();
-
-			// this is the buffer offset for the last line of vertices
-
-			base = segments * points.length * 3;
-
-			for ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {
-
-				// select the normal of the vertex in the first line
-
-				n1.x = normals[ j + 0 ];
-				n1.y = normals[ j + 1 ];
-				n1.z = normals[ j + 2 ];
-
-				// select the normal of the vertex in the last line
-
-				n2.x = normals[ base + j + 0 ];
-				n2.y = normals[ base + j + 1 ];
-				n2.z = normals[ base + j + 2 ];
-
-				// average normals
-
-				n.addVectors( n1, n2 ).normalize();
-
-				// assign the new values to both normals
-
-				normals[ j + 0 ] = normals[ base + j + 0 ] = n.x;
-				normals[ j + 1 ] = normals[ base + j + 1 ] = n.y;
-				normals[ j + 2 ] = normals[ base + j + 2 ] = n.z;
-
-			}
-
-		}
-
-	}
-
-	LatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	LatheBufferGeometry.prototype.constructor = LatheBufferGeometry;
-
-	/**
-	 * @author jonobr1 / http://jonobr1.com
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// ShapeGeometry
-
-	function ShapeGeometry( shapes, curveSegments ) {
-
-		Geometry.call( this );
-
-		this.type = 'ShapeGeometry';
-
-		if ( typeof curveSegments === 'object' ) {
-
-			console.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );
-
-			curveSegments = curveSegments.curveSegments;
-
-		}
-
-		this.parameters = {
-			shapes: shapes,
-			curveSegments: curveSegments
-		};
-
-		this.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );
-		this.mergeVertices();
-
-	}
-
-	ShapeGeometry.prototype = Object.create( Geometry.prototype );
-	ShapeGeometry.prototype.constructor = ShapeGeometry;
-
-	ShapeGeometry.prototype.toJSON = function () {
-
-		var data = Geometry.prototype.toJSON.call( this );
-
-		var shapes = this.parameters.shapes;
-
-		return toJSON( shapes, data );
-
-	};
-
-	// ShapeBufferGeometry
-
-	function ShapeBufferGeometry( shapes, curveSegments ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'ShapeBufferGeometry';
-
-		this.parameters = {
-			shapes: shapes,
-			curveSegments: curveSegments
-		};
-
-		curveSegments = curveSegments || 12;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var groupStart = 0;
-		var groupCount = 0;
-
-		// allow single and array values for "shapes" parameter
-
-		if ( Array.isArray( shapes ) === false ) {
-
-			addShape( shapes );
-
-		} else {
-
-			for ( var i = 0; i < shapes.length; i ++ ) {
-
-				addShape( shapes[ i ] );
-
-				this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support
-
-				groupStart += groupCount;
-				groupCount = 0;
-
-			}
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-
-		// helper functions
-
-		function addShape( shape ) {
-
-			var i, l, shapeHole;
-
-			var indexOffset = vertices.length / 3;
-			var points = shape.extractPoints( curveSegments );
-
-			var shapeVertices = points.shape;
-			var shapeHoles = points.holes;
-
-			// check direction of vertices
-
-			if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {
-
-				shapeVertices = shapeVertices.reverse();
-
-				// also check if holes are in the opposite direction
-
-				for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
-
-					shapeHole = shapeHoles[ i ];
-
-					if ( ShapeUtils.isClockWise( shapeHole ) === true ) {
-
-						shapeHoles[ i ] = shapeHole.reverse();
-
-					}
-
-				}
-
-			}
-
-			var faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );
-
-			// join vertices of inner and outer paths to a single array
-
-			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {
-
-				shapeHole = shapeHoles[ i ];
-				shapeVertices = shapeVertices.concat( shapeHole );
-
-			}
-
-			// vertices, normals, uvs
-
-			for ( i = 0, l = shapeVertices.length; i < l; i ++ ) {
-
-				var vertex = shapeVertices[ i ];
-
-				vertices.push( vertex.x, vertex.y, 0 );
-				normals.push( 0, 0, 1 );
-				uvs.push( vertex.x, vertex.y ); // world uvs
-
-			}
-
-			// incides
-
-			for ( i = 0, l = faces.length; i < l; i ++ ) {
-
-				var face = faces[ i ];
-
-				var a = face[ 0 ] + indexOffset;
-				var b = face[ 1 ] + indexOffset;
-				var c = face[ 2 ] + indexOffset;
-
-				indices.push( a, b, c );
-				groupCount += 3;
-
-			}
-
-		}
-
-	}
-
-	ShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	ShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;
-
-	ShapeBufferGeometry.prototype.toJSON = function () {
-
-		var data = BufferGeometry.prototype.toJSON.call( this );
-
-		var shapes = this.parameters.shapes;
-
-		return toJSON( shapes, data );
-
-	};
-
-	//
-
-	function toJSON( shapes, data ) {
-
-		data.shapes = [];
-
-		if ( Array.isArray( shapes ) ) {
-
-			for ( var i = 0, l = shapes.length; i < l; i ++ ) {
-
-				var shape = shapes[ i ];
-
-				data.shapes.push( shape.uuid );
-
-			}
-
-		} else {
-
-			data.shapes.push( shapes.uuid );
-
-		}
-
-		return data;
-
-	}
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function EdgesGeometry( geometry, thresholdAngle ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'EdgesGeometry';
-
-		this.parameters = {
-			thresholdAngle: thresholdAngle
-		};
-
-		thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;
-
-		// buffer
-
-		var vertices = [];
-
-		// helper variables
-
-		var thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );
-		var edge = [ 0, 0 ], edges = {}, edge1, edge2;
-		var key, keys = [ 'a', 'b', 'c' ];
-
-		// prepare source geometry
-
-		var geometry2;
-
-		if ( geometry.isBufferGeometry ) {
-
-			geometry2 = new Geometry();
-			geometry2.fromBufferGeometry( geometry );
-
-		} else {
-
-			geometry2 = geometry.clone();
-
-		}
-
-		geometry2.mergeVertices();
-		geometry2.computeFaceNormals();
-
-		var sourceVertices = geometry2.vertices;
-		var faces = geometry2.faces;
-
-		// now create a data structure where each entry represents an edge with its adjoining faces
-
-		for ( var i = 0, l = faces.length; i < l; i ++ ) {
-
-			var face = faces[ i ];
-
-			for ( var j = 0; j < 3; j ++ ) {
-
-				edge1 = face[ keys[ j ] ];
-				edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
-				edge[ 0 ] = Math.min( edge1, edge2 );
-				edge[ 1 ] = Math.max( edge1, edge2 );
-
-				key = edge[ 0 ] + ',' + edge[ 1 ];
-
-				if ( edges[ key ] === undefined ) {
-
-					edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };
-
-				} else {
-
-					edges[ key ].face2 = i;
-
-				}
-
-			}
-
-		}
-
-		// generate vertices
-
-		for ( key in edges ) {
-
-			var e = edges[ key ];
-
-			// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.
-
-			if ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {
-
-				var vertex = sourceVertices[ e.index1 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				vertex = sourceVertices[ e.index2 ];
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-			}
-
-		}
-
-		// build geometry
-
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-
-	}
-
-	EdgesGeometry.prototype = Object.create( BufferGeometry.prototype );
-	EdgesGeometry.prototype.constructor = EdgesGeometry;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	// CylinderGeometry
-
-	function CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'CylinderGeometry';
-
-		this.parameters = {
-			radiusTop: radiusTop,
-			radiusBottom: radiusBottom,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	CylinderGeometry.prototype = Object.create( Geometry.prototype );
-	CylinderGeometry.prototype.constructor = CylinderGeometry;
-
-	// CylinderBufferGeometry
-
-	function CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'CylinderBufferGeometry';
-
-		this.parameters = {
-			radiusTop: radiusTop,
-			radiusBottom: radiusBottom,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		var scope = this;
-
-		radiusTop = radiusTop !== undefined ? radiusTop : 1;
-		radiusBottom = radiusBottom !== undefined ? radiusBottom : 1;
-		height = height || 1;
-
-		radialSegments = Math.floor( radialSegments ) || 8;
-		heightSegments = Math.floor( heightSegments ) || 1;
-
-		openEnded = openEnded !== undefined ? openEnded : false;
-		thetaStart = thetaStart !== undefined ? thetaStart : 0.0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var index = 0;
-		var indexArray = [];
-		var halfHeight = height / 2;
-		var groupStart = 0;
-
-		// generate geometry
-
-		generateTorso();
-
-		if ( openEnded === false ) {
-
-			if ( radiusTop > 0 ) generateCap( true );
-			if ( radiusBottom > 0 ) generateCap( false );
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-		function generateTorso() {
-
-			var x, y;
-			var normal = new Vector3();
-			var vertex = new Vector3();
-
-			var groupCount = 0;
-
-			// this will be used to calculate the normal
-			var slope = ( radiusBottom - radiusTop ) / height;
-
-			// generate vertices, normals and uvs
-
-			for ( y = 0; y <= heightSegments; y ++ ) {
-
-				var indexRow = [];
-
-				var v = y / heightSegments;
-
-				// calculate the radius of the current row
-
-				var radius = v * ( radiusBottom - radiusTop ) + radiusTop;
-
-				for ( x = 0; x <= radialSegments; x ++ ) {
-
-					var u = x / radialSegments;
-
-					var theta = u * thetaLength + thetaStart;
-
-					var sinTheta = Math.sin( theta );
-					var cosTheta = Math.cos( theta );
-
-					// vertex
-
-					vertex.x = radius * sinTheta;
-					vertex.y = - v * height + halfHeight;
-					vertex.z = radius * cosTheta;
-					vertices.push( vertex.x, vertex.y, vertex.z );
-
-					// normal
-
-					normal.set( sinTheta, slope, cosTheta ).normalize();
-					normals.push( normal.x, normal.y, normal.z );
-
-					// uv
-
-					uvs.push( u, 1 - v );
-
-					// save index of vertex in respective row
-
-					indexRow.push( index ++ );
-
-				}
-
-				// now save vertices of the row in our index array
-
-				indexArray.push( indexRow );
-
-			}
-
-			// generate indices
-
-			for ( x = 0; x < radialSegments; x ++ ) {
-
-				for ( y = 0; y < heightSegments; y ++ ) {
-
-					// we use the index array to access the correct indices
-
-					var a = indexArray[ y ][ x ];
-					var b = indexArray[ y + 1 ][ x ];
-					var c = indexArray[ y + 1 ][ x + 1 ];
-					var d = indexArray[ y ][ x + 1 ];
-
-					// faces
-
-					indices.push( a, b, d );
-					indices.push( b, c, d );
-
-					// update group counter
-
-					groupCount += 6;
-
-				}
-
-			}
-
-			// add a group to the geometry. this will ensure multi material support
-
-			scope.addGroup( groupStart, groupCount, 0 );
-
-			// calculate new start value for groups
-
-			groupStart += groupCount;
-
-		}
-
-		function generateCap( top ) {
-
-			var x, centerIndexStart, centerIndexEnd;
-
-			var uv = new Vector2();
-			var vertex = new Vector3();
-
-			var groupCount = 0;
-
-			var radius = ( top === true ) ? radiusTop : radiusBottom;
-			var sign = ( top === true ) ? 1 : - 1;
-
-			// save the index of the first center vertex
-			centerIndexStart = index;
-
-			// first we generate the center vertex data of the cap.
-			// because the geometry needs one set of uvs per face,
-			// we must generate a center vertex per face/segment
-
-			for ( x = 1; x <= radialSegments; x ++ ) {
-
-				// vertex
-
-				vertices.push( 0, halfHeight * sign, 0 );
-
-				// normal
-
-				normals.push( 0, sign, 0 );
-
-				// uv
-
-				uvs.push( 0.5, 0.5 );
-
-				// increase index
-
-				index ++;
-
-			}
-
-			// save the index of the last center vertex
-
-			centerIndexEnd = index;
-
-			// now we generate the surrounding vertices, normals and uvs
-
-			for ( x = 0; x <= radialSegments; x ++ ) {
-
-				var u = x / radialSegments;
-				var theta = u * thetaLength + thetaStart;
-
-				var cosTheta = Math.cos( theta );
-				var sinTheta = Math.sin( theta );
-
-				// vertex
-
-				vertex.x = radius * sinTheta;
-				vertex.y = halfHeight * sign;
-				vertex.z = radius * cosTheta;
-				vertices.push( vertex.x, vertex.y, vertex.z );
-
-				// normal
-
-				normals.push( 0, sign, 0 );
-
-				// uv
-
-				uv.x = ( cosTheta * 0.5 ) + 0.5;
-				uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
-				uvs.push( uv.x, uv.y );
-
-				// increase index
-
-				index ++;
-
-			}
-
-			// generate indices
-
-			for ( x = 0; x < radialSegments; x ++ ) {
-
-				var c = centerIndexStart + x;
-				var i = centerIndexEnd + x;
-
-				if ( top === true ) {
-
-					// face top
-
-					indices.push( i, i + 1, c );
-
-				} else {
-
-					// face bottom
-
-					indices.push( i + 1, i, c );
-
-				}
-
-				groupCount += 3;
-
-			}
-
-			// add a group to the geometry. this will ensure multi material support
-
-			scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );
-
-			// calculate new start value for groups
-
-			groupStart += groupCount;
-
-		}
-
-	}
-
-	CylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	CylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;
-
-	/**
-	 * @author abelnation / http://github.com/abelnation
-	 */
-
-	// ConeGeometry
-
-	function ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		CylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
-
-		this.type = 'ConeGeometry';
-
-		this.parameters = {
-			radius: radius,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-	}
-
-	ConeGeometry.prototype = Object.create( CylinderGeometry.prototype );
-	ConeGeometry.prototype.constructor = ConeGeometry;
-
-	// ConeBufferGeometry
-
-	function ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {
-
-		CylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );
-
-		this.type = 'ConeBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			height: height,
-			radialSegments: radialSegments,
-			heightSegments: heightSegments,
-			openEnded: openEnded,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-	}
-
-	ConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );
-	ConeBufferGeometry.prototype.constructor = ConeBufferGeometry;
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 * @author Mugen87 / https://github.com/Mugen87
-	 * @author hughes
-	 */
-
-	// CircleGeometry
-
-	function CircleGeometry( radius, segments, thetaStart, thetaLength ) {
-
-		Geometry.call( this );
-
-		this.type = 'CircleGeometry';
-
-		this.parameters = {
-			radius: radius,
-			segments: segments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );
-		this.mergeVertices();
-
-	}
-
-	CircleGeometry.prototype = Object.create( Geometry.prototype );
-	CircleGeometry.prototype.constructor = CircleGeometry;
-
-	// CircleBufferGeometry
-
-	function CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {
-
-		BufferGeometry.call( this );
-
-		this.type = 'CircleBufferGeometry';
-
-		this.parameters = {
-			radius: radius,
-			segments: segments,
-			thetaStart: thetaStart,
-			thetaLength: thetaLength
-		};
-
-		radius = radius || 1;
-		segments = segments !== undefined ? Math.max( 3, segments ) : 8;
-
-		thetaStart = thetaStart !== undefined ? thetaStart : 0;
-		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;
-
-		// buffers
-
-		var indices = [];
-		var vertices = [];
-		var normals = [];
-		var uvs = [];
-
-		// helper variables
-
-		var i, s;
-		var vertex = new Vector3();
-		var uv = new Vector2();
-
-		// center point
-
-		vertices.push( 0, 0, 0 );
-		normals.push( 0, 0, 1 );
-		uvs.push( 0.5, 0.5 );
-
-		for ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {
-
-			var segment = thetaStart + s / segments * thetaLength;
-
-			// vertex
-
-			vertex.x = radius * Math.cos( segment );
-			vertex.y = radius * Math.sin( segment );
-
-			vertices.push( vertex.x, vertex.y, vertex.z );
-
-			// normal
-
-			normals.push( 0, 0, 1 );
-
-			// uvs
-
-			uv.x = ( vertices[ i ] / radius + 1 ) / 2;
-			uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;
-
-			uvs.push( uv.x, uv.y );
-
-		}
-
-		// indices
-
-		for ( i = 1; i <= segments; i ++ ) {
-
-			indices.push( i, i + 1, 0 );
-
-		}
-
-		// build geometry
-
-		this.setIndex( indices );
-		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
-		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );
-
-	}
-
-	CircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
-	CircleBufferGeometry.prototype.constructor = CircleBufferGeometry;
-
-
-
-	var Geometries = Object.freeze({
-		WireframeGeometry: WireframeGeometry,
-		ParametricGeometry: ParametricGeometry,
-		ParametricBufferGeometry: ParametricBufferGeometry,
-		TetrahedronGeometry: TetrahedronGeometry,
-		TetrahedronBufferGeometry: TetrahedronBufferGeometry,
-		OctahedronGeometry: OctahedronGeometry,
-		OctahedronBufferGeometry: OctahedronBufferGeometry,
-		IcosahedronGeometry: IcosahedronGeometry,
-		IcosahedronBufferGeometry: IcosahedronBufferGeometry,
-		DodecahedronGeometry: DodecahedronGeometry,
-		DodecahedronBufferGeometry: DodecahedronBufferGeometry,
-		PolyhedronGeometry: PolyhedronGeometry,
-		PolyhedronBufferGeometry: PolyhedronBufferGeometry,
-		TubeGeometry: TubeGeometry,
-		TubeBufferGeometry: TubeBufferGeometry,
-		TorusKnotGeometry: TorusKnotGeometry,
-		TorusKnotBufferGeometry: TorusKnotBufferGeometry,
-		TorusGeometry: TorusGeometry,
-		TorusBufferGeometry: TorusBufferGeometry,
-		TextGeometry: TextGeometry,
-		TextBufferGeometry: TextBufferGeometry,
-		SphereGeometry: SphereGeometry,
-		SphereBufferGeometry: SphereBufferGeometry,
-		RingGeometry: RingGeometry,
-		RingBufferGeometry: RingBufferGeometry,
-		PlaneGeometry: PlaneGeometry,
-		PlaneBufferGeometry: PlaneBufferGeometry,
-		LatheGeometry: LatheGeometry,
-		LatheBufferGeometry: LatheBufferGeometry,
-		ShapeGeometry: ShapeGeometry,
-		ShapeBufferGeometry: ShapeBufferGeometry,
-		ExtrudeGeometry: ExtrudeGeometry,
-		ExtrudeBufferGeometry: ExtrudeBufferGeometry,
-		EdgesGeometry: EdgesGeometry,
-		ConeGeometry: ConeGeometry,
-		ConeBufferGeometry: ConeBufferGeometry,
-		CylinderGeometry: CylinderGeometry,
-		CylinderBufferGeometry: CylinderBufferGeometry,
-		CircleGeometry: CircleGeometry,
-		CircleBufferGeometry: CircleBufferGeometry,
-		BoxGeometry: BoxGeometry,
-		BoxBufferGeometry: BoxBufferGeometry
-	});
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 *
-	 * parameters = {
-	 *  color: <THREE.Color>,
-	 *  opacity: <float>
-	 * }
-	 */
-
-	function ShadowMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'ShadowMaterial';
-
-		this.color = new Color( 0x000000 );
-		this.opacity = 1.0;
-
-		this.lights = true;
-		this.transparent = true;
-
-		this.setValues( parameters );
-
-	}
-
-	ShadowMaterial.prototype = Object.create( Material.prototype );
-	ShadowMaterial.prototype.constructor = ShadowMaterial;
-
-	ShadowMaterial.prototype.isShadowMaterial = true;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function RawShaderMaterial( parameters ) {
-
-		ShaderMaterial.call( this, parameters );
-
-		this.type = 'RawShaderMaterial';
-
-	}
-
-	RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );
-	RawShaderMaterial.prototype.constructor = RawShaderMaterial;
-
-	RawShaderMaterial.prototype.isRawShaderMaterial = true;
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  roughness: <float>,
-	 *  metalness: <float>,
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  emissive: <hex>,
-	 *  emissiveIntensity: <float>
-	 *  emissiveMap: new THREE.Texture( <Image> ),
-	 *
-	 *  bumpMap: new THREE.Texture( <Image> ),
-	 *  bumpScale: <float>,
-	 *
-	 *  normalMap: new THREE.Texture( <Image> ),
-	 *  normalScale: <Vector2>,
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  roughnessMap: new THREE.Texture( <Image> ),
-	 *
-	 *  metalnessMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
-	 *  envMapIntensity: <float>
-	 *
-	 *  refractionRatio: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshStandardMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.defines = { 'STANDARD': '' };
-
-		this.type = 'MeshStandardMaterial';
-
-		this.color = new Color( 0xffffff ); // diffuse
-		this.roughness = 0.5;
-		this.metalness = 0.5;
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.emissive = new Color( 0x000000 );
-		this.emissiveIntensity = 1.0;
-		this.emissiveMap = null;
-
-		this.bumpMap = null;
-		this.bumpScale = 1;
-
-		this.normalMap = null;
-		this.normalScale = new Vector2( 1, 1 );
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.roughnessMap = null;
-
-		this.metalnessMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.envMapIntensity = 1.0;
-
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshStandardMaterial.prototype = Object.create( Material.prototype );
-	MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;
-
-	MeshStandardMaterial.prototype.isMeshStandardMaterial = true;
-
-	MeshStandardMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.defines = { 'STANDARD': '' };
-
-		this.color.copy( source.color );
-		this.roughness = source.roughness;
-		this.metalness = source.metalness;
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.emissive.copy( source.emissive );
-		this.emissiveMap = source.emissiveMap;
-		this.emissiveIntensity = source.emissiveIntensity;
-
-		this.bumpMap = source.bumpMap;
-		this.bumpScale = source.bumpScale;
-
-		this.normalMap = source.normalMap;
-		this.normalScale.copy( source.normalScale );
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.roughnessMap = source.roughnessMap;
-
-		this.metalnessMap = source.metalnessMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.envMapIntensity = source.envMapIntensity;
-
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *  reflectivity: <float>
-	 * }
-	 */
-
-	function MeshPhysicalMaterial( parameters ) {
-
-		MeshStandardMaterial.call( this );
-
-		this.defines = { 'PHYSICAL': '' };
-
-		this.type = 'MeshPhysicalMaterial';
-
-		this.reflectivity = 0.5; // maps to F0 = 0.04
-
-		this.clearCoat = 0.0;
-		this.clearCoatRoughness = 0.0;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );
-	MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;
-
-	MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;
-
-	MeshPhysicalMaterial.prototype.copy = function ( source ) {
-
-		MeshStandardMaterial.prototype.copy.call( this, source );
-
-		this.defines = { 'PHYSICAL': '' };
-
-		this.reflectivity = source.reflectivity;
-
-		this.clearCoat = source.clearCoat;
-		this.clearCoatRoughness = source.clearCoatRoughness;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  specular: <hex>,
-	 *  shininess: <float>,
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  emissive: <hex>,
-	 *  emissiveIntensity: <float>
-	 *  emissiveMap: new THREE.Texture( <Image> ),
-	 *
-	 *  bumpMap: new THREE.Texture( <Image> ),
-	 *  bumpScale: <float>,
-	 *
-	 *  normalMap: new THREE.Texture( <Image> ),
-	 *  normalScale: <Vector2>,
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  specularMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
-	 *  combine: THREE.Multiply,
-	 *  reflectivity: <float>,
-	 *  refractionRatio: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshPhongMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshPhongMaterial';
-
-		this.color = new Color( 0xffffff ); // diffuse
-		this.specular = new Color( 0x111111 );
-		this.shininess = 30;
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.emissive = new Color( 0x000000 );
-		this.emissiveIntensity = 1.0;
-		this.emissiveMap = null;
-
-		this.bumpMap = null;
-		this.bumpScale = 1;
-
-		this.normalMap = null;
-		this.normalScale = new Vector2( 1, 1 );
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.specularMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.combine = MultiplyOperation;
-		this.reflectivity = 1;
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshPhongMaterial.prototype = Object.create( Material.prototype );
-	MeshPhongMaterial.prototype.constructor = MeshPhongMaterial;
-
-	MeshPhongMaterial.prototype.isMeshPhongMaterial = true;
-
-	MeshPhongMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-		this.specular.copy( source.specular );
-		this.shininess = source.shininess;
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.emissive.copy( source.emissive );
-		this.emissiveMap = source.emissiveMap;
-		this.emissiveIntensity = source.emissiveIntensity;
-
-		this.bumpMap = source.bumpMap;
-		this.bumpScale = source.bumpScale;
-
-		this.normalMap = source.normalMap;
-		this.normalScale.copy( source.normalScale );
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.specularMap = source.specularMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.combine = source.combine;
-		this.reflectivity = source.reflectivity;
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author takahirox / http://github.com/takahirox
-	 *
-	 * parameters = {
-	 *  gradientMap: new THREE.Texture( <Image> )
-	 * }
-	 */
-
-	function MeshToonMaterial( parameters ) {
-
-		MeshPhongMaterial.call( this );
-
-		this.defines = { 'TOON': '' };
-
-		this.type = 'MeshToonMaterial';
-
-		this.gradientMap = null;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );
-	MeshToonMaterial.prototype.constructor = MeshToonMaterial;
-
-	MeshToonMaterial.prototype.isMeshToonMaterial = true;
-
-	MeshToonMaterial.prototype.copy = function ( source ) {
-
-		MeshPhongMaterial.prototype.copy.call( this, source );
-
-		this.gradientMap = source.gradientMap;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * parameters = {
-	 *  opacity: <float>,
-	 *
-	 *  bumpMap: new THREE.Texture( <Image> ),
-	 *  bumpScale: <float>,
-	 *
-	 *  normalMap: new THREE.Texture( <Image> ),
-	 *  normalScale: <Vector2>,
-	 *
-	 *  displacementMap: new THREE.Texture( <Image> ),
-	 *  displacementScale: <float>,
-	 *  displacementBias: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshNormalMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshNormalMaterial';
-
-		this.bumpMap = null;
-		this.bumpScale = 1;
-
-		this.normalMap = null;
-		this.normalScale = new Vector2( 1, 1 );
-
-		this.displacementMap = null;
-		this.displacementScale = 1;
-		this.displacementBias = 0;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-
-		this.fog = false;
-		this.lights = false;
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshNormalMaterial.prototype = Object.create( Material.prototype );
-	MeshNormalMaterial.prototype.constructor = MeshNormalMaterial;
-
-	MeshNormalMaterial.prototype.isMeshNormalMaterial = true;
-
-	MeshNormalMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.bumpMap = source.bumpMap;
-		this.bumpScale = source.bumpScale;
-
-		this.normalMap = source.normalMap;
-		this.normalScale.copy( source.normalScale );
-
-		this.displacementMap = source.displacementMap;
-		this.displacementScale = source.displacementScale;
-		this.displacementBias = source.displacementBias;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *
-	 *  map: new THREE.Texture( <Image> ),
-	 *
-	 *  lightMap: new THREE.Texture( <Image> ),
-	 *  lightMapIntensity: <float>
-	 *
-	 *  aoMap: new THREE.Texture( <Image> ),
-	 *  aoMapIntensity: <float>
-	 *
-	 *  emissive: <hex>,
-	 *  emissiveIntensity: <float>
-	 *  emissiveMap: new THREE.Texture( <Image> ),
-	 *
-	 *  specularMap: new THREE.Texture( <Image> ),
-	 *
-	 *  alphaMap: new THREE.Texture( <Image> ),
-	 *
-	 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
-	 *  combine: THREE.Multiply,
-	 *  reflectivity: <float>,
-	 *  refractionRatio: <float>,
-	 *
-	 *  wireframe: <boolean>,
-	 *  wireframeLinewidth: <float>,
-	 *
-	 *  skinning: <bool>,
-	 *  morphTargets: <bool>,
-	 *  morphNormals: <bool>
-	 * }
-	 */
-
-	function MeshLambertMaterial( parameters ) {
-
-		Material.call( this );
-
-		this.type = 'MeshLambertMaterial';
-
-		this.color = new Color( 0xffffff ); // diffuse
-
-		this.map = null;
-
-		this.lightMap = null;
-		this.lightMapIntensity = 1.0;
-
-		this.aoMap = null;
-		this.aoMapIntensity = 1.0;
-
-		this.emissive = new Color( 0x000000 );
-		this.emissiveIntensity = 1.0;
-		this.emissiveMap = null;
-
-		this.specularMap = null;
-
-		this.alphaMap = null;
-
-		this.envMap = null;
-		this.combine = MultiplyOperation;
-		this.reflectivity = 1;
-		this.refractionRatio = 0.98;
-
-		this.wireframe = false;
-		this.wireframeLinewidth = 1;
-		this.wireframeLinecap = 'round';
-		this.wireframeLinejoin = 'round';
-
-		this.skinning = false;
-		this.morphTargets = false;
-		this.morphNormals = false;
-
-		this.setValues( parameters );
-
-	}
-
-	MeshLambertMaterial.prototype = Object.create( Material.prototype );
-	MeshLambertMaterial.prototype.constructor = MeshLambertMaterial;
-
-	MeshLambertMaterial.prototype.isMeshLambertMaterial = true;
-
-	MeshLambertMaterial.prototype.copy = function ( source ) {
-
-		Material.prototype.copy.call( this, source );
-
-		this.color.copy( source.color );
-
-		this.map = source.map;
-
-		this.lightMap = source.lightMap;
-		this.lightMapIntensity = source.lightMapIntensity;
-
-		this.aoMap = source.aoMap;
-		this.aoMapIntensity = source.aoMapIntensity;
-
-		this.emissive.copy( source.emissive );
-		this.emissiveMap = source.emissiveMap;
-		this.emissiveIntensity = source.emissiveIntensity;
-
-		this.specularMap = source.specularMap;
-
-		this.alphaMap = source.alphaMap;
-
-		this.envMap = source.envMap;
-		this.combine = source.combine;
-		this.reflectivity = source.reflectivity;
-		this.refractionRatio = source.refractionRatio;
-
-		this.wireframe = source.wireframe;
-		this.wireframeLinewidth = source.wireframeLinewidth;
-		this.wireframeLinecap = source.wireframeLinecap;
-		this.wireframeLinejoin = source.wireframeLinejoin;
-
-		this.skinning = source.skinning;
-		this.morphTargets = source.morphTargets;
-		this.morphNormals = source.morphNormals;
-
-		return this;
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 *
-	 * parameters = {
-	 *  color: <hex>,
-	 *  opacity: <float>,
-	 *
-	 *  linewidth: <float>,
-	 *
-	 *  scale: <float>,
-	 *  dashSize: <float>,
-	 *  gapSize: <float>
-	 * }
-	 */
-
-	function LineDashedMaterial( parameters ) {
-
-		LineBasicMaterial.call( this );
-
-		this.type = 'LineDashedMaterial';
-
-		this.scale = 1;
-		this.dashSize = 3;
-		this.gapSize = 1;
-
-		this.setValues( parameters );
-
-	}
-
-	LineDashedMaterial.prototype = Object.create( LineBasicMaterial.prototype );
-	LineDashedMaterial.prototype.constructor = LineDashedMaterial;
-
-	LineDashedMaterial.prototype.isLineDashedMaterial = true;
-
-	LineDashedMaterial.prototype.copy = function ( source ) {
-
-		LineBasicMaterial.prototype.copy.call( this, source );
-
-		this.scale = source.scale;
-		this.dashSize = source.dashSize;
-		this.gapSize = source.gapSize;
-
-		return this;
-
-	};
-
-
-
-	var Materials = Object.freeze({
-		ShadowMaterial: ShadowMaterial,
-		SpriteMaterial: SpriteMaterial,
-		RawShaderMaterial: RawShaderMaterial,
-		ShaderMaterial: ShaderMaterial,
-		PointsMaterial: PointsMaterial,
-		MeshPhysicalMaterial: MeshPhysicalMaterial,
-		MeshStandardMaterial: MeshStandardMaterial,
-		MeshPhongMaterial: MeshPhongMaterial,
-		MeshToonMaterial: MeshToonMaterial,
-		MeshNormalMaterial: MeshNormalMaterial,
-		MeshLambertMaterial: MeshLambertMaterial,
-		MeshDepthMaterial: MeshDepthMaterial,
-		MeshDistanceMaterial: MeshDistanceMaterial,
-		MeshBasicMaterial: MeshBasicMaterial,
-		LineDashedMaterial: LineDashedMaterial,
-		LineBasicMaterial: LineBasicMaterial,
-		Material: Material
-	});
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var Cache = {
-
-		enabled: false,
-
-		files: {},
-
-		add: function ( key, file ) {
-
-			if ( this.enabled === false ) return;
-
-			// console.log( 'THREE.Cache', 'Adding key:', key );
-
-			this.files[ key ] = file;
-
-		},
-
-		get: function ( key ) {
-
-			if ( this.enabled === false ) return;
-
-			// console.log( 'THREE.Cache', 'Checking key:', key );
-
-			return this.files[ key ];
-
-		},
-
-		remove: function ( key ) {
-
-			delete this.files[ key ];
-
-		},
-
-		clear: function () {
-
-			this.files = {};
-
-		}
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LoadingManager( onLoad, onProgress, onError ) {
-
-		var scope = this;
-
-		var isLoading = false;
-		var itemsLoaded = 0;
-		var itemsTotal = 0;
-		var urlModifier = undefined;
-
-		this.onStart = undefined;
-		this.onLoad = onLoad;
-		this.onProgress = onProgress;
-		this.onError = onError;
-
-		this.itemStart = function ( url ) {
-
-			itemsTotal ++;
-
-			if ( isLoading === false ) {
-
-				if ( scope.onStart !== undefined ) {
-
-					scope.onStart( url, itemsLoaded, itemsTotal );
-
-				}
-
-			}
-
-			isLoading = true;
-
-		};
-
-		this.itemEnd = function ( url ) {
-
-			itemsLoaded ++;
-
-			if ( scope.onProgress !== undefined ) {
-
-				scope.onProgress( url, itemsLoaded, itemsTotal );
-
-			}
-
-			if ( itemsLoaded === itemsTotal ) {
-
-				isLoading = false;
-
-				if ( scope.onLoad !== undefined ) {
-
-					scope.onLoad();
-
-				}
-
-			}
-
-		};
-
-		this.itemError = function ( url ) {
-
-			if ( scope.onError !== undefined ) {
-
-				scope.onError( url );
-
-			}
-
-		};
-
-		this.resolveURL = function ( url ) {
-
-			if ( urlModifier ) {
-
-				return urlModifier( url );
-
-			}
-
-			return url;
-
-		};
-
-		this.setURLModifier = function ( transform ) {
-
-			urlModifier = transform;
-			return this;
-
-		};
-
-	}
-
-	var DefaultLoadingManager = new LoadingManager();
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var loading = {};
-
-	function FileLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( FileLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			if ( url === undefined ) url = '';
-
-			if ( this.path !== undefined ) url = this.path + url;
-
-			url = this.manager.resolveURL( url );
-
-			var scope = this;
-
-			var cached = Cache.get( url );
-
-			if ( cached !== undefined ) {
-
-				scope.manager.itemStart( url );
-
-				setTimeout( function () {
-
-					if ( onLoad ) onLoad( cached );
-
-					scope.manager.itemEnd( url );
-
-				}, 0 );
-
-				return cached;
-
-			}
-
-			// Check if request is duplicate
-
-			if ( loading[ url ] !== undefined ) {
-
-				loading[ url ].push( {
-
-					onLoad: onLoad,
-					onProgress: onProgress,
-					onError: onError
-
-				} );
-
-				return;
-
-			}
-
-			// Check for data: URI
-			var dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
-			var dataUriRegexResult = url.match( dataUriRegex );
-
-			// Safari can not handle Data URIs through XMLHttpRequest so process manually
-			if ( dataUriRegexResult ) {
-
-				var mimeType = dataUriRegexResult[ 1 ];
-				var isBase64 = !! dataUriRegexResult[ 2 ];
-				var data = dataUriRegexResult[ 3 ];
-
-				data = window.decodeURIComponent( data );
-
-				if ( isBase64 ) data = window.atob( data );
-
-				try {
-
-					var response;
-					var responseType = ( this.responseType || '' ).toLowerCase();
-
-					switch ( responseType ) {
-
-						case 'arraybuffer':
-						case 'blob':
-
-							var view = new Uint8Array( data.length );
-
-							for ( var i = 0; i < data.length; i ++ ) {
-
-								view[ i ] = data.charCodeAt( i );
-
-							}
-
-							if ( responseType === 'blob' ) {
-
-								response = new Blob( [ view.buffer ], { type: mimeType } );
-
-							} else {
-
-								response = view.buffer;
-
-							}
-
-							break;
-
-						case 'document':
-
-							var parser = new DOMParser();
-							response = parser.parseFromString( data, mimeType );
-
-							break;
-
-						case 'json':
-
-							response = JSON.parse( data );
-
-							break;
-
-						default: // 'text' or other
-
-							response = data;
-
-							break;
-
-					}
-
-					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
-					window.setTimeout( function () {
-
-						if ( onLoad ) onLoad( response );
-
-						scope.manager.itemEnd( url );
-
-					}, 0 );
-
-				} catch ( error ) {
-
-					// Wait for next browser tick like standard XMLHttpRequest event dispatching does
-					window.setTimeout( function () {
-
-						if ( onError ) onError( error );
-
-						scope.manager.itemEnd( url );
-						scope.manager.itemError( url );
-
-					}, 0 );
-
-				}
-
-			} else {
-
-				// Initialise array for duplicate requests
-
-				loading[ url ] = [];
-
-				loading[ url ].push( {
-
-					onLoad: onLoad,
-					onProgress: onProgress,
-					onError: onError
-
-				} );
-
-				var request = new XMLHttpRequest();
-
-				request.open( 'GET', url, true );
-
-				request.addEventListener( 'load', function ( event ) {
-
-					var response = this.response;
-
-					Cache.add( url, response );
-
-					var callbacks = loading[ url ];
-
-					delete loading[ url ];
-
-					if ( this.status === 200 ) {
-
-						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-							var callback = callbacks[ i ];
-							if ( callback.onLoad ) callback.onLoad( response );
-
-						}
-
-						scope.manager.itemEnd( url );
-
-					} else if ( this.status === 0 ) {
-
-						// Some browsers return HTTP Status 0 when using non-http protocol
-						// e.g. 'file://' or 'data://'. Handle as success.
-
-						console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );
-
-						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-							var callback = callbacks[ i ];
-							if ( callback.onLoad ) callback.onLoad( response );
-
-						}
-
-						scope.manager.itemEnd( url );
-
-					} else {
-
-						for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-							var callback = callbacks[ i ];
-							if ( callback.onError ) callback.onError( event );
-
-						}
-
-						scope.manager.itemEnd( url );
-						scope.manager.itemError( url );
-
-					}
-
-				}, false );
-
-				request.addEventListener( 'progress', function ( event ) {
-
-					var callbacks = loading[ url ];
-
-					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-						var callback = callbacks[ i ];
-						if ( callback.onProgress ) callback.onProgress( event );
-
-					}
-
-				}, false );
-
-				request.addEventListener( 'error', function ( event ) {
-
-					var callbacks = loading[ url ];
-
-					delete loading[ url ];
-
-					for ( var i = 0, il = callbacks.length; i < il; i ++ ) {
-
-						var callback = callbacks[ i ];
-						if ( callback.onError ) callback.onError( event );
-
-					}
-
-					scope.manager.itemEnd( url );
-					scope.manager.itemError( url );
-
-				}, false );
-
-				if ( this.responseType !== undefined ) request.responseType = this.responseType;
-				if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;
-
-				if ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );
-
-				for ( var header in this.requestHeader ) {
-
-					request.setRequestHeader( header, this.requestHeader[ header ] );
-
-				}
-
-				request.send( null );
-
-			}
-
-			scope.manager.itemStart( url );
-
-			return request;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		},
-
-		setResponseType: function ( value ) {
-
-			this.responseType = value;
-			return this;
-
-		},
-
-		setWithCredentials: function ( value ) {
-
-			this.withCredentials = value;
-			return this;
-
-		},
-
-		setMimeType: function ( value ) {
-
-			this.mimeType = value;
-			return this;
-
-		},
-
-		setRequestHeader: function ( value ) {
-
-			this.requestHeader = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 *
-	 * Abstract Base class to block based textures loader (dds, pvr, ...)
-	 */
-
-	function CompressedTextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-		// override in sub classes
-		this._parser = null;
-
-	}
-
-	Object.assign( CompressedTextureLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var images = [];
-
-			var texture = new CompressedTexture();
-			texture.image = images;
-
-			var loader = new FileLoader( this.manager );
-			loader.setPath( this.path );
-			loader.setResponseType( 'arraybuffer' );
-
-			function loadTexture( i ) {
-
-				loader.load( url[ i ], function ( buffer ) {
-
-					var texDatas = scope._parser( buffer, true );
-
-					images[ i ] = {
-						width: texDatas.width,
-						height: texDatas.height,
-						format: texDatas.format,
-						mipmaps: texDatas.mipmaps
-					};
-
-					loaded += 1;
-
-					if ( loaded === 6 ) {
-
-						if ( texDatas.mipmapCount === 1 )
-							texture.minFilter = LinearFilter;
-
-						texture.format = texDatas.format;
-						texture.needsUpdate = true;
-
-						if ( onLoad ) onLoad( texture );
-
-					}
-
-				}, onProgress, onError );
-
-			}
-
-			if ( Array.isArray( url ) ) {
-
-				var loaded = 0;
-
-				for ( var i = 0, il = url.length; i < il; ++ i ) {
-
-					loadTexture( i );
-
-				}
-
-			} else {
-
-				// compressed cubemap texture stored in a single DDS file
-
-				loader.load( url, function ( buffer ) {
-
-					var texDatas = scope._parser( buffer, true );
-
-					if ( texDatas.isCubemap ) {
-
-						var faces = texDatas.mipmaps.length / texDatas.mipmapCount;
-
-						for ( var f = 0; f < faces; f ++ ) {
-
-							images[ f ] = { mipmaps: [] };
-
-							for ( var i = 0; i < texDatas.mipmapCount; i ++ ) {
-
-								images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
-								images[ f ].format = texDatas.format;
-								images[ f ].width = texDatas.width;
-								images[ f ].height = texDatas.height;
-
-							}
-
-						}
-
-					} else {
-
-						texture.image.width = texDatas.width;
-						texture.image.height = texDatas.height;
-						texture.mipmaps = texDatas.mipmaps;
-
-					}
-
-					if ( texDatas.mipmapCount === 1 ) {
-
-						texture.minFilter = LinearFilter;
-
-					}
-
-					texture.format = texDatas.format;
-					texture.needsUpdate = true;
-
-					if ( onLoad ) onLoad( texture );
-
-				}, onProgress, onError );
-
-			}
-
-			return texture;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author Nikos M. / https://github.com/foo123/
-	 *
-	 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
-	 */
-
-	function DataTextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-		// override in sub classes
-		this._parser = null;
-
-	}
-
-	Object.assign( DataTextureLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var texture = new DataTexture();
-
-			var loader = new FileLoader( this.manager );
-			loader.setResponseType( 'arraybuffer' );
-
-			loader.load( url, function ( buffer ) {
-
-				var texData = scope._parser( buffer );
-
-				if ( ! texData ) return;
-
-				if ( undefined !== texData.image ) {
-
-					texture.image = texData.image;
-
-				} else if ( undefined !== texData.data ) {
-
-					texture.image.width = texData.width;
-					texture.image.height = texData.height;
-					texture.image.data = texData.data;
-
-				}
-
-				texture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;
-				texture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;
-
-				texture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;
-				texture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;
-
-				texture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;
-
-				if ( undefined !== texData.format ) {
-
-					texture.format = texData.format;
-
-				}
-				if ( undefined !== texData.type ) {
-
-					texture.type = texData.type;
-
-				}
-
-				if ( undefined !== texData.mipmaps ) {
-
-					texture.mipmaps = texData.mipmaps;
-
-				}
-
-				if ( 1 === texData.mipmapCount ) {
-
-					texture.minFilter = LinearFilter;
-
-				}
-
-				texture.needsUpdate = true;
-
-				if ( onLoad ) onLoad( texture, texData );
-
-			}, onProgress, onError );
-
-
-			return texture;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function ImageLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( ImageLoader.prototype, {
-
-		crossOrigin: 'Anonymous',
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			if ( url === undefined ) url = '';
-
-			if ( this.path !== undefined ) url = this.path + url;
-
-			url = this.manager.resolveURL( url );
-
-			var scope = this;
-
-			var cached = Cache.get( url );
-
-			if ( cached !== undefined ) {
-
-				scope.manager.itemStart( url );
-
-				setTimeout( function () {
-
-					if ( onLoad ) onLoad( cached );
-
-					scope.manager.itemEnd( url );
-
-				}, 0 );
-
-				return cached;
-
-			}
-
-			var image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );
-
-			image.addEventListener( 'load', function () {
-
-				Cache.add( url, this );
-
-				if ( onLoad ) onLoad( this );
-
-				scope.manager.itemEnd( url );
-
-			}, false );
-
-			/*
-			image.addEventListener( 'progress', function ( event ) {
-
-				if ( onProgress ) onProgress( event );
-
-			}, false );
-			*/
-
-			image.addEventListener( 'error', function ( event ) {
-
-				if ( onError ) onError( event );
-
-				scope.manager.itemEnd( url );
-				scope.manager.itemError( url );
-
-			}, false );
-
-			if ( url.substr( 0, 5 ) !== 'data:' ) {
-
-				if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;
-
-			}
-
-			scope.manager.itemStart( url );
-
-			image.src = url;
-
-			return image;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function CubeTextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( CubeTextureLoader.prototype, {
-
-		crossOrigin: 'Anonymous',
-
-		load: function ( urls, onLoad, onProgress, onError ) {
-
-			var texture = new CubeTexture();
-
-			var loader = new ImageLoader( this.manager );
-			loader.setCrossOrigin( this.crossOrigin );
-			loader.setPath( this.path );
-
-			var loaded = 0;
-
-			function loadTexture( i ) {
-
-				loader.load( urls[ i ], function ( image ) {
-
-					texture.images[ i ] = image;
-
-					loaded ++;
-
-					if ( loaded === 6 ) {
-
-						texture.needsUpdate = true;
-
-						if ( onLoad ) onLoad( texture );
-
-					}
-
-				}, undefined, onError );
-
-			}
-
-			for ( var i = 0; i < urls.length; ++ i ) {
-
-				loadTexture( i );
-
-			}
-
-			return texture;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function TextureLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( TextureLoader.prototype, {
-
-		crossOrigin: 'Anonymous',
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var texture = new Texture();
-
-			var loader = new ImageLoader( this.manager );
-			loader.setCrossOrigin( this.crossOrigin );
-			loader.setPath( this.path );
-
-			loader.load( url, function ( image ) {
-
-				texture.image = image;
-
-				// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
-				var isJPEG = url.search( /\.(jpg|jpeg)$/ ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0;
-
-				texture.format = isJPEG ? RGBFormat : RGBAFormat;
-				texture.needsUpdate = true;
-
-				if ( onLoad !== undefined ) {
-
-					onLoad( texture );
-
-				}
-
-			}, onProgress, onError );
-
-			return texture;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * Extensible curve object
-	 *
-	 * Some common of curve methods:
-	 * .getPoint( t, optionalTarget ), .getTangent( t )
-	 * .getPointAt( u, optionalTarget ), .getTangentAt( u )
-	 * .getPoints(), .getSpacedPoints()
-	 * .getLength()
-	 * .updateArcLengths()
-	 *
-	 * This following curves inherit from THREE.Curve:
-	 *
-	 * -- 2D curves --
-	 * THREE.ArcCurve
-	 * THREE.CubicBezierCurve
-	 * THREE.EllipseCurve
-	 * THREE.LineCurve
-	 * THREE.QuadraticBezierCurve
-	 * THREE.SplineCurve
-	 *
-	 * -- 3D curves --
-	 * THREE.CatmullRomCurve3
-	 * THREE.CubicBezierCurve3
-	 * THREE.LineCurve3
-	 * THREE.QuadraticBezierCurve3
-	 *
-	 * A series of curves can be represented as a THREE.CurvePath.
-	 *
-	 **/
-
-	/**************************************************************
-	 *	Abstract Curve base class
-	 **************************************************************/
-
-	function Curve() {
-
-		this.type = 'Curve';
-
-		this.arcLengthDivisions = 200;
-
-	}
-
-	Object.assign( Curve.prototype, {
-
-		// Virtual base class method to overwrite and implement in subclasses
-		//	- t [0 .. 1]
-
-		getPoint: function ( /* t, optionalTarget */ ) {
-
-			console.warn( 'THREE.Curve: .getPoint() not implemented.' );
-			return null;
-
-		},
-
-		// Get point at relative position in curve according to arc length
-		// - u [0 .. 1]
-
-		getPointAt: function ( u, optionalTarget ) {
-
-			var t = this.getUtoTmapping( u );
-			return this.getPoint( t, optionalTarget );
-
-		},
-
-		// Get sequence of points using getPoint( t )
-
-		getPoints: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = 5;
-
-			var points = [];
-
-			for ( var d = 0; d <= divisions; d ++ ) {
-
-				points.push( this.getPoint( d / divisions ) );
-
-			}
-
-			return points;
-
-		},
-
-		// Get sequence of points using getPointAt( u )
-
-		getSpacedPoints: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = 5;
-
-			var points = [];
-
-			for ( var d = 0; d <= divisions; d ++ ) {
-
-				points.push( this.getPointAt( d / divisions ) );
-
-			}
-
-			return points;
-
-		},
-
-		// Get total curve arc length
-
-		getLength: function () {
-
-			var lengths = this.getLengths();
-			return lengths[ lengths.length - 1 ];
-
-		},
-
-		// Get list of cumulative segment lengths
-
-		getLengths: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = this.arcLengthDivisions;
-
-			if ( this.cacheArcLengths &&
-				( this.cacheArcLengths.length === divisions + 1 ) &&
-				! this.needsUpdate ) {
-
-				return this.cacheArcLengths;
-
-			}
-
-			this.needsUpdate = false;
-
-			var cache = [];
-			var current, last = this.getPoint( 0 );
-			var p, sum = 0;
-
-			cache.push( 0 );
-
-			for ( p = 1; p <= divisions; p ++ ) {
-
-				current = this.getPoint( p / divisions );
-				sum += current.distanceTo( last );
-				cache.push( sum );
-				last = current;
-
-			}
-
-			this.cacheArcLengths = cache;
-
-			return cache; // { sums: cache, sum: sum }; Sum is in the last element.
-
-		},
-
-		updateArcLengths: function () {
-
-			this.needsUpdate = true;
-			this.getLengths();
-
-		},
-
-		// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
-
-		getUtoTmapping: function ( u, distance ) {
-
-			var arcLengths = this.getLengths();
-
-			var i = 0, il = arcLengths.length;
-
-			var targetArcLength; // The targeted u distance value to get
-
-			if ( distance ) {
-
-				targetArcLength = distance;
-
-			} else {
-
-				targetArcLength = u * arcLengths[ il - 1 ];
-
-			}
-
-			// binary search for the index with largest value smaller than target u distance
-
-			var low = 0, high = il - 1, comparison;
-
-			while ( low <= high ) {
-
-				i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats
-
-				comparison = arcLengths[ i ] - targetArcLength;
-
-				if ( comparison < 0 ) {
-
-					low = i + 1;
-
-				} else if ( comparison > 0 ) {
-
-					high = i - 1;
-
-				} else {
-
-					high = i;
-					break;
-
-					// DONE
-
-				}
-
-			}
-
-			i = high;
-
-			if ( arcLengths[ i ] === targetArcLength ) {
-
-				return i / ( il - 1 );
-
-			}
-
-			// we could get finer grain at lengths, or use simple interpolation between two points
-
-			var lengthBefore = arcLengths[ i ];
-			var lengthAfter = arcLengths[ i + 1 ];
-
-			var segmentLength = lengthAfter - lengthBefore;
-
-			// determine where we are between the 'before' and 'after' points
-
-			var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;
-
-			// add that fractional amount to t
-
-			var t = ( i + segmentFraction ) / ( il - 1 );
-
-			return t;
-
-		},
-
-		// Returns a unit vector tangent at t
-		// In case any sub curve does not implement its tangent derivation,
-		// 2 points a small delta apart will be used to find its gradient
-		// which seems to give a reasonable approximation
-
-		getTangent: function ( t ) {
-
-			var delta = 0.0001;
-			var t1 = t - delta;
-			var t2 = t + delta;
-
-			// Capping in case of danger
-
-			if ( t1 < 0 ) t1 = 0;
-			if ( t2 > 1 ) t2 = 1;
-
-			var pt1 = this.getPoint( t1 );
-			var pt2 = this.getPoint( t2 );
-
-			var vec = pt2.clone().sub( pt1 );
-			return vec.normalize();
-
-		},
-
-		getTangentAt: function ( u ) {
-
-			var t = this.getUtoTmapping( u );
-			return this.getTangent( t );
-
-		},
-
-		computeFrenetFrames: function ( segments, closed ) {
-
-			// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
-
-			var normal = new Vector3();
-
-			var tangents = [];
-			var normals = [];
-			var binormals = [];
-
-			var vec = new Vector3();
-			var mat = new Matrix4();
-
-			var i, u, theta;
-
-			// compute the tangent vectors for each segment on the curve
-
-			for ( i = 0; i <= segments; i ++ ) {
-
-				u = i / segments;
-
-				tangents[ i ] = this.getTangentAt( u );
-				tangents[ i ].normalize();
-
-			}
-
-			// select an initial normal vector perpendicular to the first tangent vector,
-			// and in the direction of the minimum tangent xyz component
-
-			normals[ 0 ] = new Vector3();
-			binormals[ 0 ] = new Vector3();
-			var min = Number.MAX_VALUE;
-			var tx = Math.abs( tangents[ 0 ].x );
-			var ty = Math.abs( tangents[ 0 ].y );
-			var tz = Math.abs( tangents[ 0 ].z );
-
-			if ( tx <= min ) {
-
-				min = tx;
-				normal.set( 1, 0, 0 );
-
-			}
-
-			if ( ty <= min ) {
-
-				min = ty;
-				normal.set( 0, 1, 0 );
-
-			}
-
-			if ( tz <= min ) {
-
-				normal.set( 0, 0, 1 );
-
-			}
-
-			vec.crossVectors( tangents[ 0 ], normal ).normalize();
-
-			normals[ 0 ].crossVectors( tangents[ 0 ], vec );
-			binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );
-
-
-			// compute the slowly-varying normal and binormal vectors for each segment on the curve
-
-			for ( i = 1; i <= segments; i ++ ) {
-
-				normals[ i ] = normals[ i - 1 ].clone();
-
-				binormals[ i ] = binormals[ i - 1 ].clone();
-
-				vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );
-
-				if ( vec.length() > Number.EPSILON ) {
-
-					vec.normalize();
-
-					theta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors
-
-					normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );
-
-				}
-
-				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
-
-			}
-
-			// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same
-
-			if ( closed === true ) {
-
-				theta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
-				theta /= segments;
-
-				if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {
-
-					theta = - theta;
-
-				}
-
-				for ( i = 1; i <= segments; i ++ ) {
-
-					// twist a little...
-					normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
-					binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );
-
-				}
-
-			}
-
-			return {
-				tangents: tangents,
-				normals: normals,
-				binormals: binormals
-			};
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( source ) {
-
-			this.arcLengthDivisions = source.arcLengthDivisions;
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = {
-				metadata: {
-					version: 4.5,
-					type: 'Curve',
-					generator: 'Curve.toJSON'
-				}
-			};
-
-			data.arcLengthDivisions = this.arcLengthDivisions;
-			data.type = this.type;
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			this.arcLengthDivisions = json.arcLengthDivisions;
-
-			return this;
-
-		}
-
-	} );
-
-	function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
-
-		Curve.call( this );
-
-		this.type = 'EllipseCurve';
-
-		this.aX = aX || 0;
-		this.aY = aY || 0;
-
-		this.xRadius = xRadius || 1;
-		this.yRadius = yRadius || 1;
-
-		this.aStartAngle = aStartAngle || 0;
-		this.aEndAngle = aEndAngle || 2 * Math.PI;
-
-		this.aClockwise = aClockwise || false;
-
-		this.aRotation = aRotation || 0;
-
-	}
-
-	EllipseCurve.prototype = Object.create( Curve.prototype );
-	EllipseCurve.prototype.constructor = EllipseCurve;
-
-	EllipseCurve.prototype.isEllipseCurve = true;
-
-	EllipseCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var twoPi = Math.PI * 2;
-		var deltaAngle = this.aEndAngle - this.aStartAngle;
-		var samePoints = Math.abs( deltaAngle ) < Number.EPSILON;
-
-		// ensures that deltaAngle is 0 .. 2 PI
-		while ( deltaAngle < 0 ) deltaAngle += twoPi;
-		while ( deltaAngle > twoPi ) deltaAngle -= twoPi;
-
-		if ( deltaAngle < Number.EPSILON ) {
-
-			if ( samePoints ) {
-
-				deltaAngle = 0;
-
-			} else {
-
-				deltaAngle = twoPi;
-
-			}
-
-		}
-
-		if ( this.aClockwise === true && ! samePoints ) {
-
-			if ( deltaAngle === twoPi ) {
-
-				deltaAngle = - twoPi;
-
-			} else {
-
-				deltaAngle = deltaAngle - twoPi;
-
-			}
-
-		}
-
-		var angle = this.aStartAngle + t * deltaAngle;
-		var x = this.aX + this.xRadius * Math.cos( angle );
-		var y = this.aY + this.yRadius * Math.sin( angle );
-
-		if ( this.aRotation !== 0 ) {
-
-			var cos = Math.cos( this.aRotation );
-			var sin = Math.sin( this.aRotation );
-
-			var tx = x - this.aX;
-			var ty = y - this.aY;
-
-			// Rotate the point about the center of the ellipse.
-			x = tx * cos - ty * sin + this.aX;
-			y = tx * sin + ty * cos + this.aY;
-
-		}
-
-		return point.set( x, y );
-
-	};
-
-	EllipseCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.aX = source.aX;
-		this.aY = source.aY;
-
-		this.xRadius = source.xRadius;
-		this.yRadius = source.yRadius;
-
-		this.aStartAngle = source.aStartAngle;
-		this.aEndAngle = source.aEndAngle;
-
-		this.aClockwise = source.aClockwise;
-
-		this.aRotation = source.aRotation;
-
-		return this;
-
-	};
-
-
-	EllipseCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.aX = this.aX;
-		data.aY = this.aY;
-
-		data.xRadius = this.xRadius;
-		data.yRadius = this.yRadius;
-
-		data.aStartAngle = this.aStartAngle;
-		data.aEndAngle = this.aEndAngle;
-
-		data.aClockwise = this.aClockwise;
-
-		data.aRotation = this.aRotation;
-
-		return data;
-
-	};
-
-	EllipseCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.aX = json.aX;
-		this.aY = json.aY;
-
-		this.xRadius = json.xRadius;
-		this.yRadius = json.yRadius;
-
-		this.aStartAngle = json.aStartAngle;
-		this.aEndAngle = json.aEndAngle;
-
-		this.aClockwise = json.aClockwise;
-
-		this.aRotation = json.aRotation;
-
-		return this;
-
-	};
-
-	function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
-
-		EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
-
-		this.type = 'ArcCurve';
-
-	}
-
-	ArcCurve.prototype = Object.create( EllipseCurve.prototype );
-	ArcCurve.prototype.constructor = ArcCurve;
-
-	ArcCurve.prototype.isArcCurve = true;
-
-	/**
-	 * @author zz85 https://github.com/zz85
-	 *
-	 * Centripetal CatmullRom Curve - which is useful for avoiding
-	 * cusps and self-intersections in non-uniform catmull rom curves.
-	 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
-	 *
-	 * curve.type accepts centripetal(default), chordal and catmullrom
-	 * curve.tension is used for catmullrom which defaults to 0.5
-	 */
-
-
-	/*
-	Based on an optimized c++ solution in
-	 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
-	 - http://ideone.com/NoEbVM
-
-	This CubicPoly class could be used for reusing some variables and calculations,
-	but for three.js curve use, it could be possible inlined and flatten into a single function call
-	which can be placed in CurveUtils.
-	*/
-
-	function CubicPoly() {
-
-		var c0 = 0, c1 = 0, c2 = 0, c3 = 0;
-
-		/*
-		 * Compute coefficients for a cubic polynomial
-		 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
-		 * such that
-		 *   p(0) = x0, p(1) = x1
-		 *  and
-		 *   p'(0) = t0, p'(1) = t1.
-		 */
-		function init( x0, x1, t0, t1 ) {
-
-			c0 = x0;
-			c1 = t0;
-			c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
-			c3 = 2 * x0 - 2 * x1 + t0 + t1;
-
-		}
-
-		return {
-
-			initCatmullRom: function ( x0, x1, x2, x3, tension ) {
-
-				init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );
-
-			},
-
-			initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {
-
-				// compute tangents when parameterized in [t1,t2]
-				var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
-				var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;
-
-				// rescale tangents for parametrization in [0,1]
-				t1 *= dt1;
-				t2 *= dt1;
-
-				init( x1, x2, t1, t2 );
-
-			},
-
-			calc: function ( t ) {
-
-				var t2 = t * t;
-				var t3 = t2 * t;
-				return c0 + c1 * t + c2 * t2 + c3 * t3;
-
-			}
-
-		};
-
-	}
-
-	//
-
-	var tmp = new Vector3();
-	var px = new CubicPoly();
-	var py = new CubicPoly();
-	var pz = new CubicPoly();
-
-	function CatmullRomCurve3( points, closed, curveType, tension ) {
-
-		Curve.call( this );
-
-		this.type = 'CatmullRomCurve3';
-
-		this.points = points || [];
-		this.closed = closed || false;
-		this.curveType = curveType || 'centripetal';
-		this.tension = tension || 0.5;
-
-	}
-
-	CatmullRomCurve3.prototype = Object.create( Curve.prototype );
-	CatmullRomCurve3.prototype.constructor = CatmullRomCurve3;
-
-	CatmullRomCurve3.prototype.isCatmullRomCurve3 = true;
-
-	CatmullRomCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		var points = this.points;
-		var l = points.length;
-
-		var p = ( l - ( this.closed ? 0 : 1 ) ) * t;
-		var intPoint = Math.floor( p );
-		var weight = p - intPoint;
-
-		if ( this.closed ) {
-
-			intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / points.length ) + 1 ) * points.length;
-
-		} else if ( weight === 0 && intPoint === l - 1 ) {
-
-			intPoint = l - 2;
-			weight = 1;
-
-		}
-
-		var p0, p1, p2, p3; // 4 points
-
-		if ( this.closed || intPoint > 0 ) {
-
-			p0 = points[ ( intPoint - 1 ) % l ];
-
-		} else {
-
-			// extrapolate first point
-			tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
-			p0 = tmp;
-
-		}
-
-		p1 = points[ intPoint % l ];
-		p2 = points[ ( intPoint + 1 ) % l ];
-
-		if ( this.closed || intPoint + 2 < l ) {
-
-			p3 = points[ ( intPoint + 2 ) % l ];
-
-		} else {
-
-			// extrapolate last point
-			tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
-			p3 = tmp;
-
-		}
-
-		if ( this.curveType === 'centripetal' || this.curveType === 'chordal' ) {
-
-			// init Centripetal / Chordal Catmull-Rom
-			var pow = this.curveType === 'chordal' ? 0.5 : 0.25;
-			var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
-			var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
-			var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );
-
-			// safety check for repeated points
-			if ( dt1 < 1e-4 ) dt1 = 1.0;
-			if ( dt0 < 1e-4 ) dt0 = dt1;
-			if ( dt2 < 1e-4 ) dt2 = dt1;
-
-			px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
-			py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
-			pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );
-
-		} else if ( this.curveType === 'catmullrom' ) {
-
-			px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, this.tension );
-			py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, this.tension );
-			pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, this.tension );
-
-		}
-
-		point.set(
-			px.calc( weight ),
-			py.calc( weight ),
-			pz.calc( weight )
-		);
-
-		return point;
-
-	};
-
-	CatmullRomCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.points = [];
-
-		for ( var i = 0, l = source.points.length; i < l; i ++ ) {
-
-			var point = source.points[ i ];
-
-			this.points.push( point.clone() );
-
-		}
-
-		this.closed = source.closed;
-		this.curveType = source.curveType;
-		this.tension = source.tension;
-
-		return this;
-
-	};
-
-	CatmullRomCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.points = [];
-
-		for ( var i = 0, l = this.points.length; i < l; i ++ ) {
-
-			var point = this.points[ i ];
-			data.points.push( point.toArray() );
-
-		}
-
-		data.closed = this.closed;
-		data.curveType = this.curveType;
-		data.tension = this.tension;
-
-		return data;
-
-	};
-
-	CatmullRomCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.points = [];
-
-		for ( var i = 0, l = json.points.length; i < l; i ++ ) {
-
-			var point = json.points[ i ];
-			this.points.push( new Vector3().fromArray( point ) );
-
-		}
-
-		this.closed = json.closed;
-		this.curveType = json.curveType;
-		this.tension = json.tension;
-
-		return this;
-
-	};
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 *
-	 * Bezier Curves formulas obtained from
-	 * http://en.wikipedia.org/wiki/Bézier_curve
-	 */
-
-	function CatmullRom( t, p0, p1, p2, p3 ) {
-
-		var v0 = ( p2 - p0 ) * 0.5;
-		var v1 = ( p3 - p1 ) * 0.5;
-		var t2 = t * t;
-		var t3 = t * t2;
-		return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;
-
-	}
-
-	//
-
-	function QuadraticBezierP0( t, p ) {
-
-		var k = 1 - t;
-		return k * k * p;
-
-	}
-
-	function QuadraticBezierP1( t, p ) {
-
-		return 2 * ( 1 - t ) * t * p;
-
-	}
-
-	function QuadraticBezierP2( t, p ) {
-
-		return t * t * p;
-
-	}
-
-	function QuadraticBezier( t, p0, p1, p2 ) {
-
-		return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
-			QuadraticBezierP2( t, p2 );
-
-	}
-
-	//
-
-	function CubicBezierP0( t, p ) {
-
-		var k = 1 - t;
-		return k * k * k * p;
-
-	}
-
-	function CubicBezierP1( t, p ) {
-
-		var k = 1 - t;
-		return 3 * k * k * t * p;
-
-	}
-
-	function CubicBezierP2( t, p ) {
-
-		return 3 * ( 1 - t ) * t * t * p;
-
-	}
-
-	function CubicBezierP3( t, p ) {
-
-		return t * t * t * p;
-
-	}
-
-	function CubicBezier( t, p0, p1, p2, p3 ) {
-
-		return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
-			CubicBezierP3( t, p3 );
-
-	}
-
-	function CubicBezierCurve( v0, v1, v2, v3 ) {
-
-		Curve.call( this );
-
-		this.type = 'CubicBezierCurve';
-
-		this.v0 = v0 || new Vector2();
-		this.v1 = v1 || new Vector2();
-		this.v2 = v2 || new Vector2();
-		this.v3 = v3 || new Vector2();
-
-	}
-
-	CubicBezierCurve.prototype = Object.create( Curve.prototype );
-	CubicBezierCurve.prototype.constructor = CubicBezierCurve;
-
-	CubicBezierCurve.prototype.isCubicBezierCurve = true;
-
-	CubicBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
-
-		point.set(
-			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
-			CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
-		);
-
-		return point;
-
-	};
-
-	CubicBezierCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-		this.v3.copy( source.v3 );
-
-		return this;
-
-	};
-
-	CubicBezierCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-		data.v3 = this.v3.toArray();
-
-		return data;
-
-	};
-
-	CubicBezierCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-		this.v3.fromArray( json.v3 );
-
-		return this;
-
-	};
-
-	function CubicBezierCurve3( v0, v1, v2, v3 ) {
-
-		Curve.call( this );
-
-		this.type = 'CubicBezierCurve3';
-
-		this.v0 = v0 || new Vector3();
-		this.v1 = v1 || new Vector3();
-		this.v2 = v2 || new Vector3();
-		this.v3 = v3 || new Vector3();
-
-	}
-
-	CubicBezierCurve3.prototype = Object.create( Curve.prototype );
-	CubicBezierCurve3.prototype.constructor = CubicBezierCurve3;
-
-	CubicBezierCurve3.prototype.isCubicBezierCurve3 = true;
-
-	CubicBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;
-
-		point.set(
-			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
-			CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
-			CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
-		);
-
-		return point;
-
-	};
-
-	CubicBezierCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-		this.v3.copy( source.v3 );
-
-		return this;
-
-	};
-
-	CubicBezierCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-		data.v3 = this.v3.toArray();
-
-		return data;
-
-	};
-
-	CubicBezierCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-		this.v3.fromArray( json.v3 );
-
-		return this;
-
-	};
-
-	function LineCurve( v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'LineCurve';
-
-		this.v1 = v1 || new Vector2();
-		this.v2 = v2 || new Vector2();
-
-	}
-
-	LineCurve.prototype = Object.create( Curve.prototype );
-	LineCurve.prototype.constructor = LineCurve;
-
-	LineCurve.prototype.isLineCurve = true;
-
-	LineCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		if ( t === 1 ) {
-
-			point.copy( this.v2 );
-
-		} else {
-
-			point.copy( this.v2 ).sub( this.v1 );
-			point.multiplyScalar( t ).add( this.v1 );
-
-		}
-
-		return point;
-
-	};
-
-	// Line curve is linear, so we can overwrite default getPointAt
-
-	LineCurve.prototype.getPointAt = function ( u, optionalTarget ) {
-
-		return this.getPoint( u, optionalTarget );
-
-	};
-
-	LineCurve.prototype.getTangent = function ( /* t */ ) {
-
-		var tangent = this.v2.clone().sub( this.v1 );
-
-		return tangent.normalize();
-
-	};
-
-	LineCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	LineCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	LineCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function LineCurve3( v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'LineCurve3';
-
-		this.v1 = v1 || new Vector3();
-		this.v2 = v2 || new Vector3();
-
-	}
-
-	LineCurve3.prototype = Object.create( Curve.prototype );
-	LineCurve3.prototype.constructor = LineCurve3;
-
-	LineCurve3.prototype.isLineCurve3 = true;
-
-	LineCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		if ( t === 1 ) {
-
-			point.copy( this.v2 );
-
-		} else {
-
-			point.copy( this.v2 ).sub( this.v1 );
-			point.multiplyScalar( t ).add( this.v1 );
-
-		}
-
-		return point;
-
-	};
-
-	// Line curve is linear, so we can overwrite default getPointAt
-
-	LineCurve3.prototype.getPointAt = function ( u, optionalTarget ) {
-
-		return this.getPoint( u, optionalTarget );
-
-	};
-
-	LineCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	LineCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	LineCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function QuadraticBezierCurve( v0, v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'QuadraticBezierCurve';
-
-		this.v0 = v0 || new Vector2();
-		this.v1 = v1 || new Vector2();
-		this.v2 = v2 || new Vector2();
-
-	}
-
-	QuadraticBezierCurve.prototype = Object.create( Curve.prototype );
-	QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;
-
-	QuadraticBezierCurve.prototype.isQuadraticBezierCurve = true;
-
-	QuadraticBezierCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2;
-
-		point.set(
-			QuadraticBezier( t, v0.x, v1.x, v2.x ),
-			QuadraticBezier( t, v0.y, v1.y, v2.y )
-		);
-
-		return point;
-
-	};
-
-	QuadraticBezierCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	QuadraticBezierCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	QuadraticBezierCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function QuadraticBezierCurve3( v0, v1, v2 ) {
-
-		Curve.call( this );
-
-		this.type = 'QuadraticBezierCurve3';
-
-		this.v0 = v0 || new Vector3();
-		this.v1 = v1 || new Vector3();
-		this.v2 = v2 || new Vector3();
-
-	}
-
-	QuadraticBezierCurve3.prototype = Object.create( Curve.prototype );
-	QuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;
-
-	QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3 = true;
-
-	QuadraticBezierCurve3.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector3();
-
-		var v0 = this.v0, v1 = this.v1, v2 = this.v2;
-
-		point.set(
-			QuadraticBezier( t, v0.x, v1.x, v2.x ),
-			QuadraticBezier( t, v0.y, v1.y, v2.y ),
-			QuadraticBezier( t, v0.z, v1.z, v2.z )
-		);
-
-		return point;
-
-	};
-
-	QuadraticBezierCurve3.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.v0.copy( source.v0 );
-		this.v1.copy( source.v1 );
-		this.v2.copy( source.v2 );
-
-		return this;
-
-	};
-
-	QuadraticBezierCurve3.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.v0 = this.v0.toArray();
-		data.v1 = this.v1.toArray();
-		data.v2 = this.v2.toArray();
-
-		return data;
-
-	};
-
-	QuadraticBezierCurve3.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.v0.fromArray( json.v0 );
-		this.v1.fromArray( json.v1 );
-		this.v2.fromArray( json.v2 );
-
-		return this;
-
-	};
-
-	function SplineCurve( points /* array of Vector2 */ ) {
-
-		Curve.call( this );
-
-		this.type = 'SplineCurve';
-
-		this.points = points || [];
-
-	}
-
-	SplineCurve.prototype = Object.create( Curve.prototype );
-	SplineCurve.prototype.constructor = SplineCurve;
-
-	SplineCurve.prototype.isSplineCurve = true;
-
-	SplineCurve.prototype.getPoint = function ( t, optionalTarget ) {
-
-		var point = optionalTarget || new Vector2();
-
-		var points = this.points;
-		var p = ( points.length - 1 ) * t;
-
-		var intPoint = Math.floor( p );
-		var weight = p - intPoint;
-
-		var p0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
-		var p1 = points[ intPoint ];
-		var p2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
-		var p3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];
-
-		point.set(
-			CatmullRom( weight, p0.x, p1.x, p2.x, p3.x ),
-			CatmullRom( weight, p0.y, p1.y, p2.y, p3.y )
-		);
-
-		return point;
-
-	};
-
-	SplineCurve.prototype.copy = function ( source ) {
-
-		Curve.prototype.copy.call( this, source );
-
-		this.points = [];
-
-		for ( var i = 0, l = source.points.length; i < l; i ++ ) {
-
-			var point = source.points[ i ];
-
-			this.points.push( point.clone() );
-
-		}
-
-		return this;
-
-	};
-
-	SplineCurve.prototype.toJSON = function () {
-
-		var data = Curve.prototype.toJSON.call( this );
-
-		data.points = [];
-
-		for ( var i = 0, l = this.points.length; i < l; i ++ ) {
-
-			var point = this.points[ i ];
-			data.points.push( point.toArray() );
-
-		}
-
-		return data;
-
-	};
-
-	SplineCurve.prototype.fromJSON = function ( json ) {
-
-		Curve.prototype.fromJSON.call( this, json );
-
-		this.points = [];
-
-		for ( var i = 0, l = json.points.length; i < l; i ++ ) {
-
-			var point = json.points[ i ];
-			this.points.push( new Vector2().fromArray( point ) );
-
-		}
-
-		return this;
-
-	};
-
-
-
-	var Curves = Object.freeze({
-		ArcCurve: ArcCurve,
-		CatmullRomCurve3: CatmullRomCurve3,
-		CubicBezierCurve: CubicBezierCurve,
-		CubicBezierCurve3: CubicBezierCurve3,
-		EllipseCurve: EllipseCurve,
-		LineCurve: LineCurve,
-		LineCurve3: LineCurve3,
-		QuadraticBezierCurve: QuadraticBezierCurve,
-		QuadraticBezierCurve3: QuadraticBezierCurve3,
-		SplineCurve: SplineCurve
-	});
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 *
-	 **/
-
-	/**************************************************************
-	 *	Curved Path - a curve path is simply a array of connected
-	 *  curves, but retains the api of a curve
-	 **************************************************************/
-
-	function CurvePath() {
-
-		Curve.call( this );
-
-		this.type = 'CurvePath';
-
-		this.curves = [];
-		this.autoClose = false; // Automatically closes the path
-
-	}
-
-	CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {
-
-		constructor: CurvePath,
-
-		add: function ( curve ) {
-
-			this.curves.push( curve );
-
-		},
-
-		closePath: function () {
-
-			// Add a line curve if start and end of lines are not connected
-			var startPoint = this.curves[ 0 ].getPoint( 0 );
-			var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );
-
-			if ( ! startPoint.equals( endPoint ) ) {
-
-				this.curves.push( new LineCurve( endPoint, startPoint ) );
-
-			}
-
-		},
-
-		// To get accurate point with reference to
-		// entire path distance at time t,
-		// following has to be done:
-
-		// 1. Length of each sub path have to be known
-		// 2. Locate and identify type of curve
-		// 3. Get t for the curve
-		// 4. Return curve.getPointAt(t')
-
-		getPoint: function ( t ) {
-
-			var d = t * this.getLength();
-			var curveLengths = this.getCurveLengths();
-			var i = 0;
-
-			// To think about boundaries points.
-
-			while ( i < curveLengths.length ) {
-
-				if ( curveLengths[ i ] >= d ) {
-
-					var diff = curveLengths[ i ] - d;
-					var curve = this.curves[ i ];
-
-					var segmentLength = curve.getLength();
-					var u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;
-
-					return curve.getPointAt( u );
-
-				}
-
-				i ++;
-
-			}
-
-			return null;
-
-			// loop where sum != 0, sum > d , sum+1 <d
-
-		},
-
-		// We cannot use the default THREE.Curve getPoint() with getLength() because in
-		// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
-		// getPoint() depends on getLength
-
-		getLength: function () {
-
-			var lens = this.getCurveLengths();
-			return lens[ lens.length - 1 ];
-
-		},
-
-		// cacheLengths must be recalculated.
-		updateArcLengths: function () {
-
-			this.needsUpdate = true;
-			this.cacheLengths = null;
-			this.getCurveLengths();
-
-		},
-
-		// Compute lengths and cache them
-		// We cannot overwrite getLengths() because UtoT mapping uses it.
-
-		getCurveLengths: function () {
-
-			// We use cache values if curves and cache array are same length
-
-			if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {
-
-				return this.cacheLengths;
-
-			}
-
-			// Get length of sub-curve
-			// Push sums into cached array
-
-			var lengths = [], sums = 0;
-
-			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {
-
-				sums += this.curves[ i ].getLength();
-				lengths.push( sums );
-
-			}
-
-			this.cacheLengths = lengths;
-
-			return lengths;
-
-		},
-
-		getSpacedPoints: function ( divisions ) {
-
-			if ( divisions === undefined ) divisions = 40;
-
-			var points = [];
-
-			for ( var i = 0; i <= divisions; i ++ ) {
-
-				points.push( this.getPoint( i / divisions ) );
-
-			}
-
-			if ( this.autoClose ) {
-
-				points.push( points[ 0 ] );
-
-			}
-
-			return points;
-
-		},
-
-		getPoints: function ( divisions ) {
-
-			divisions = divisions || 12;
-
-			var points = [], last;
-
-			for ( var i = 0, curves = this.curves; i < curves.length; i ++ ) {
-
-				var curve = curves[ i ];
-				var resolution = ( curve && curve.isEllipseCurve ) ? divisions * 2
-					: ( curve && curve.isLineCurve ) ? 1
-						: ( curve && curve.isSplineCurve ) ? divisions * curve.points.length
-							: divisions;
-
-				var pts = curve.getPoints( resolution );
-
-				for ( var j = 0; j < pts.length; j ++ ) {
-
-					var point = pts[ j ];
-
-					if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates
-
-					points.push( point );
-					last = point;
-
-				}
-
-			}
-
-			if ( this.autoClose && points.length > 1 && ! points[ points.length - 1 ].equals( points[ 0 ] ) ) {
-
-				points.push( points[ 0 ] );
-
-			}
-
-			return points;
-
-		},
-
-		copy: function ( source ) {
-
-			Curve.prototype.copy.call( this, source );
-
-			this.curves = [];
-
-			for ( var i = 0, l = source.curves.length; i < l; i ++ ) {
-
-				var curve = source.curves[ i ];
-
-				this.curves.push( curve.clone() );
-
-			}
-
-			this.autoClose = source.autoClose;
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = Curve.prototype.toJSON.call( this );
-
-			data.autoClose = this.autoClose;
-			data.curves = [];
-
-			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {
-
-				var curve = this.curves[ i ];
-				data.curves.push( curve.toJSON() );
-
-			}
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			Curve.prototype.fromJSON.call( this, json );
-
-			this.autoClose = json.autoClose;
-			this.curves = [];
-
-			for ( var i = 0, l = json.curves.length; i < l; i ++ ) {
-
-				var curve = json.curves[ i ];
-				this.curves.push( new Curves[ curve.type ]().fromJSON( curve ) );
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * Creates free form 2d path using series of points, lines or curves.
-	 **/
-
-	function Path( points ) {
-
-		CurvePath.call( this );
-
-		this.type = 'Path';
-
-		this.currentPoint = new Vector2();
-
-		if ( points ) {
-
-			this.setFromPoints( points );
-
-		}
-
-	}
-
-	Path.prototype = Object.assign( Object.create( CurvePath.prototype ), {
-
-		constructor: Path,
-
-		setFromPoints: function ( points ) {
-
-			this.moveTo( points[ 0 ].x, points[ 0 ].y );
-
-			for ( var i = 1, l = points.length; i < l; i ++ ) {
-
-				this.lineTo( points[ i ].x, points[ i ].y );
-
-			}
-
-		},
-
-		moveTo: function ( x, y ) {
-
-			this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?
-
-		},
-
-		lineTo: function ( x, y ) {
-
-			var curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
-			this.curves.push( curve );
-
-			this.currentPoint.set( x, y );
-
-		},
-
-		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
-
-			var curve = new QuadraticBezierCurve(
-				this.currentPoint.clone(),
-				new Vector2( aCPx, aCPy ),
-				new Vector2( aX, aY )
-			);
-
-			this.curves.push( curve );
-
-			this.currentPoint.set( aX, aY );
-
-		},
-
-		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
-
-			var curve = new CubicBezierCurve(
-				this.currentPoint.clone(),
-				new Vector2( aCP1x, aCP1y ),
-				new Vector2( aCP2x, aCP2y ),
-				new Vector2( aX, aY )
-			);
-
-			this.curves.push( curve );
-
-			this.currentPoint.set( aX, aY );
-
-		},
-
-		splineThru: function ( pts /*Array of Vector*/ ) {
-
-			var npts = [ this.currentPoint.clone() ].concat( pts );
-
-			var curve = new SplineCurve( npts );
-			this.curves.push( curve );
-
-			this.currentPoint.copy( pts[ pts.length - 1 ] );
-
-		},
-
-		arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
-
-			var x0 = this.currentPoint.x;
-			var y0 = this.currentPoint.y;
-
-			this.absarc( aX + x0, aY + y0, aRadius,
-				aStartAngle, aEndAngle, aClockwise );
-
-		},
-
-		absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {
-
-			this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );
-
-		},
-
-		ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
-
-			var x0 = this.currentPoint.x;
-			var y0 = this.currentPoint.y;
-
-			this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
-
-		},
-
-		absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {
-
-			var curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );
-
-			if ( this.curves.length > 0 ) {
-
-				// if a previous curve is present, attempt to join
-				var firstPoint = curve.getPoint( 0 );
-
-				if ( ! firstPoint.equals( this.currentPoint ) ) {
-
-					this.lineTo( firstPoint.x, firstPoint.y );
-
-				}
-
-			}
-
-			this.curves.push( curve );
-
-			var lastPoint = curve.getPoint( 1 );
-			this.currentPoint.copy( lastPoint );
-
-		},
-
-		copy: function ( source ) {
-
-			CurvePath.prototype.copy.call( this, source );
-
-			this.currentPoint.copy( source.currentPoint );
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = CurvePath.prototype.toJSON.call( this );
-
-			data.currentPoint = this.currentPoint.toArray();
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			CurvePath.prototype.fromJSON.call( this, json );
-
-			this.currentPoint.fromArray( json.currentPoint );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * Defines a 2d shape plane using paths.
-	 **/
-
-	// STEP 1 Create a path.
-	// STEP 2 Turn path into shape.
-	// STEP 3 ExtrudeGeometry takes in Shape/Shapes
-	// STEP 3a - Extract points from each shape, turn to vertices
-	// STEP 3b - Triangulate each shape, add faces.
-
-	function Shape( points ) {
-
-		Path.call( this, points );
-
-		this.uuid = _Math.generateUUID();
-
-		this.type = 'Shape';
-
-		this.holes = [];
-
-	}
-
-	Shape.prototype = Object.assign( Object.create( Path.prototype ), {
-
-		constructor: Shape,
-
-		getPointsHoles: function ( divisions ) {
-
-			var holesPts = [];
-
-			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
-
-				holesPts[ i ] = this.holes[ i ].getPoints( divisions );
-
-			}
-
-			return holesPts;
-
-		},
-
-		// get points of shape and holes (keypoints based on segments parameter)
-
-		extractPoints: function ( divisions ) {
-
-			return {
-
-				shape: this.getPoints( divisions ),
-				holes: this.getPointsHoles( divisions )
-
-			};
-
-		},
-
-		copy: function ( source ) {
-
-			Path.prototype.copy.call( this, source );
-
-			this.holes = [];
-
-			for ( var i = 0, l = source.holes.length; i < l; i ++ ) {
-
-				var hole = source.holes[ i ];
-
-				this.holes.push( hole.clone() );
-
-			}
-
-			return this;
-
-		},
-
-		toJSON: function () {
-
-			var data = Path.prototype.toJSON.call( this );
-
-			data.uuid = this.uuid;
-			data.holes = [];
-
-			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {
-
-				var hole = this.holes[ i ];
-				data.holes.push( hole.toJSON() );
-
-			}
-
-			return data;
-
-		},
-
-		fromJSON: function ( json ) {
-
-			Path.prototype.fromJSON.call( this, json );
-
-			this.uuid = json.uuid;
-			this.holes = [];
-
-			for ( var i = 0, l = json.holes.length; i < l; i ++ ) {
-
-				var hole = json.holes[ i ];
-				this.holes.push( new Path().fromJSON( hole ) );
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Light( color, intensity ) {
-
-		Object3D.call( this );
-
-		this.type = 'Light';
-
-		this.color = new Color( color );
-		this.intensity = intensity !== undefined ? intensity : 1;
-
-		this.receiveShadow = undefined;
-
-	}
-
-	Light.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Light,
-
-		isLight: true,
-
-		copy: function ( source ) {
-
-			Object3D.prototype.copy.call( this, source );
-
-			this.color.copy( source.color );
-			this.intensity = source.intensity;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Object3D.prototype.toJSON.call( this, meta );
-
-			data.object.color = this.color.getHex();
-			data.object.intensity = this.intensity;
-
-			if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();
-
-			if ( this.distance !== undefined ) data.object.distance = this.distance;
-			if ( this.angle !== undefined ) data.object.angle = this.angle;
-			if ( this.decay !== undefined ) data.object.decay = this.decay;
-			if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;
-
-			if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function HemisphereLight( skyColor, groundColor, intensity ) {
-
-		Light.call( this, skyColor, intensity );
-
-		this.type = 'HemisphereLight';
-
-		this.castShadow = undefined;
-
-		this.position.copy( Object3D.DefaultUp );
-		this.updateMatrix();
-
-		this.groundColor = new Color( groundColor );
-
-	}
-
-	HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: HemisphereLight,
-
-		isHemisphereLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.groundColor.copy( source.groundColor );
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function LightShadow( camera ) {
-
-		this.camera = camera;
-
-		this.bias = 0;
-		this.radius = 1;
-
-		this.mapSize = new Vector2( 512, 512 );
-
-		this.map = null;
-		this.matrix = new Matrix4();
-
-	}
-
-	Object.assign( LightShadow.prototype, {
-
-		copy: function ( source ) {
-
-			this.camera = source.camera.clone();
-
-			this.bias = source.bias;
-			this.radius = source.radius;
-
-			this.mapSize.copy( source.mapSize );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		toJSON: function () {
-
-			var object = {};
-
-			if ( this.bias !== 0 ) object.bias = this.bias;
-			if ( this.radius !== 1 ) object.radius = this.radius;
-			if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();
-
-			object.camera = this.camera.toJSON( false ).object;
-			delete object.camera.matrix;
-
-			return object;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function SpotLightShadow() {
-
-		LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );
-
-	}
-
-	SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
-
-		constructor: SpotLightShadow,
-
-		isSpotLightShadow: true,
-
-		update: function ( light ) {
-
-			var camera = this.camera;
-
-			var fov = _Math.RAD2DEG * 2 * light.angle;
-			var aspect = this.mapSize.width / this.mapSize.height;
-			var far = light.distance || camera.far;
-
-			if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {
-
-				camera.fov = fov;
-				camera.aspect = aspect;
-				camera.far = far;
-				camera.updateProjectionMatrix();
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function SpotLight( color, intensity, distance, angle, penumbra, decay ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'SpotLight';
-
-		this.position.copy( Object3D.DefaultUp );
-		this.updateMatrix();
-
-		this.target = new Object3D();
-
-		Object.defineProperty( this, 'power', {
-			get: function () {
-
-				// intensity = power per solid angle.
-				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				return this.intensity * Math.PI;
-
-			},
-			set: function ( power ) {
-
-				// intensity = power per solid angle.
-				// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				this.intensity = power / Math.PI;
-
-			}
-		} );
-
-		this.distance = ( distance !== undefined ) ? distance : 0;
-		this.angle = ( angle !== undefined ) ? angle : Math.PI / 3;
-		this.penumbra = ( penumbra !== undefined ) ? penumbra : 0;
-		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
-
-		this.shadow = new SpotLightShadow();
-
-	}
-
-	SpotLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: SpotLight,
-
-		isSpotLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.distance = source.distance;
-			this.angle = source.angle;
-			this.penumbra = source.penumbra;
-			this.decay = source.decay;
-
-			this.target = source.target.clone();
-
-			this.shadow = source.shadow.clone();
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-
-	function PointLight( color, intensity, distance, decay ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'PointLight';
-
-		Object.defineProperty( this, 'power', {
-			get: function () {
-
-				// intensity = power per solid angle.
-				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				return this.intensity * 4 * Math.PI;
-
-			},
-			set: function ( power ) {
-
-				// intensity = power per solid angle.
-				// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
-				this.intensity = power / ( 4 * Math.PI );
-
-			}
-		} );
-
-		this.distance = ( distance !== undefined ) ? distance : 0;
-		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.
-
-		this.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );
-
-	}
-
-	PointLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: PointLight,
-
-		isPointLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.distance = source.distance;
-			this.decay = source.decay;
-
-			this.shadow = source.shadow.clone();
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function DirectionalLightShadow( ) {
-
-		LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );
-
-	}
-
-	DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {
-
-		constructor: DirectionalLightShadow
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function DirectionalLight( color, intensity ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'DirectionalLight';
-
-		this.position.copy( Object3D.DefaultUp );
-		this.updateMatrix();
-
-		this.target = new Object3D();
-
-		this.shadow = new DirectionalLightShadow();
-
-	}
-
-	DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: DirectionalLight,
-
-		isDirectionalLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.target = source.target.clone();
-
-			this.shadow = source.shadow.clone();
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AmbientLight( color, intensity ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'AmbientLight';
-
-		this.castShadow = undefined;
-
-	}
-
-	AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: AmbientLight,
-
-		isAmbientLight: true
-
-	} );
-
-	/**
-	 * @author abelnation / http://github.com/abelnation
-	 */
-
-	function RectAreaLight( color, intensity, width, height ) {
-
-		Light.call( this, color, intensity );
-
-		this.type = 'RectAreaLight';
-
-		this.width = ( width !== undefined ) ? width : 10;
-		this.height = ( height !== undefined ) ? height : 10;
-
-	}
-
-	RectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {
-
-		constructor: RectAreaLight,
-
-		isRectAreaLight: true,
-
-		copy: function ( source ) {
-
-			Light.prototype.copy.call( this, source );
-
-			this.width = source.width;
-			this.height = source.height;
-
-			return this;
-
-		},
-
-		toJSON: function ( meta ) {
-
-			var data = Light.prototype.toJSON.call( this, meta );
-
-			data.object.width = this.width;
-			data.object.height = this.height;
-
-			return data;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A Track that interpolates Strings
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function StringKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	StringKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: StringKeyframeTrack,
-
-		ValueTypeName: 'string',
-		ValueBufferType: Array,
-
-		DefaultInterpolation: InterpolateDiscrete,
-
-		InterpolantFactoryMethodLinear: undefined,
-
-		InterpolantFactoryMethodSmooth: undefined
-
-	} );
-
-	/**
-	 *
-	 * A Track of Boolean keyframe values.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function BooleanKeyframeTrack( name, times, values ) {
-
-		KeyframeTrack.call( this, name, times, values );
-
-	}
-
-	BooleanKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: BooleanKeyframeTrack,
-
-		ValueTypeName: 'bool',
-		ValueBufferType: Array,
-
-		DefaultInterpolation: InterpolateDiscrete,
-
-		InterpolantFactoryMethodLinear: undefined,
-		InterpolantFactoryMethodSmooth: undefined
-
-		// Note: Actually this track could have a optimized / compressed
-		// representation of a single value and a custom interpolant that
-		// computes "firstValue ^ isOdd( index )".
-
-	} );
-
-	/**
-	 * Abstract base class of interpolants over parametric samples.
-	 *
-	 * The parameter domain is one dimensional, typically the time or a path
-	 * along a curve defined by the data.
-	 *
-	 * The sample values can have any dimensionality and derived classes may
-	 * apply special interpretations to the data.
-	 *
-	 * This class provides the interval seek in a Template Method, deferring
-	 * the actual interpolation to derived classes.
-	 *
-	 * Time complexity is O(1) for linear access crossing at most two points
-	 * and O(log N) for random access, where N is the number of positions.
-	 *
-	 * References:
-	 *
-	 * 		http://www.oodesign.com/template-method-pattern.html
-	 *
-	 * @author tschw
-	 */
-
-	function Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		this.parameterPositions = parameterPositions;
-		this._cachedIndex = 0;
-
-		this.resultBuffer = resultBuffer !== undefined ?
-			resultBuffer : new sampleValues.constructor( sampleSize );
-		this.sampleValues = sampleValues;
-		this.valueSize = sampleSize;
-
-	}
-
-	Object.assign( Interpolant.prototype, {
-
-		evaluate: function ( t ) {
-
-			var pp = this.parameterPositions,
-				i1 = this._cachedIndex,
-
-				t1 = pp[ i1 ],
-				t0 = pp[ i1 - 1 ];
-
-			validate_interval: {
-
-				seek: {
-
-					var right;
-
-					linear_scan: {
-
-						//- See http://jsperf.com/comparison-to-undefined/3
-						//- slower code:
-						//-
-						//- 				if ( t >= t1 || t1 === undefined ) {
-						forward_scan: if ( ! ( t < t1 ) ) {
-
-							for ( var giveUpAt = i1 + 2; ; ) {
-
-								if ( t1 === undefined ) {
-
-									if ( t < t0 ) break forward_scan;
-
-									// after end
-
-									i1 = pp.length;
-									this._cachedIndex = i1;
-									return this.afterEnd_( i1 - 1, t, t0 );
-
-								}
-
-								if ( i1 === giveUpAt ) break; // this loop
-
-								t0 = t1;
-								t1 = pp[ ++ i1 ];
-
-								if ( t < t1 ) {
-
-									// we have arrived at the sought interval
-									break seek;
-
-								}
-
-							}
-
-							// prepare binary search on the right side of the index
-							right = pp.length;
-							break linear_scan;
-
-						}
-
-						//- slower code:
-						//-					if ( t < t0 || t0 === undefined ) {
-						if ( ! ( t >= t0 ) ) {
-
-							// looping?
-
-							var t1global = pp[ 1 ];
-
-							if ( t < t1global ) {
-
-								i1 = 2; // + 1, using the scan for the details
-								t0 = t1global;
-
-							}
-
-							// linear reverse scan
-
-							for ( var giveUpAt = i1 - 2; ; ) {
-
-								if ( t0 === undefined ) {
-
-									// before start
-
-									this._cachedIndex = 0;
-									return this.beforeStart_( 0, t, t1 );
-
-								}
-
-								if ( i1 === giveUpAt ) break; // this loop
-
-								t1 = t0;
-								t0 = pp[ -- i1 - 1 ];
-
-								if ( t >= t0 ) {
-
-									// we have arrived at the sought interval
-									break seek;
-
-								}
-
-							}
-
-							// prepare binary search on the left side of the index
-							right = i1;
-							i1 = 0;
-							break linear_scan;
-
-						}
-
-						// the interval is valid
-
-						break validate_interval;
-
-					} // linear scan
-
-					// binary search
-
-					while ( i1 < right ) {
-
-						var mid = ( i1 + right ) >>> 1;
-
-						if ( t < pp[ mid ] ) {
-
-							right = mid;
-
-						} else {
-
-							i1 = mid + 1;
-
-						}
-
-					}
-
-					t1 = pp[ i1 ];
-					t0 = pp[ i1 - 1 ];
-
-					// check boundary cases, again
-
-					if ( t0 === undefined ) {
-
-						this._cachedIndex = 0;
-						return this.beforeStart_( 0, t, t1 );
-
-					}
-
-					if ( t1 === undefined ) {
-
-						i1 = pp.length;
-						this._cachedIndex = i1;
-						return this.afterEnd_( i1 - 1, t0, t );
-
-					}
-
-				} // seek
-
-				this._cachedIndex = i1;
-
-				this.intervalChanged_( i1, t0, t1 );
-
-			} // validate_interval
-
-			return this.interpolate_( i1, t0, t, t1 );
-
-		},
-
-		settings: null, // optional, subclass-specific settings structure
-		// Note: The indirection allows central control of many interpolants.
-
-		// --- Protected interface
-
-		DefaultSettings_: {},
-
-		getSettings_: function () {
-
-			return this.settings || this.DefaultSettings_;
-
-		},
-
-		copySampleValue_: function ( index ) {
-
-			// copies a sample value to the result buffer
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-				offset = index * stride;
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				result[ i ] = values[ offset + i ];
-
-			}
-
-			return result;
-
-		},
-
-		// Template methods for derived classes:
-
-		interpolate_: function ( /* i1, t0, t, t1 */ ) {
-
-			throw new Error( 'call to abstract method' );
-			// implementations shall return this.resultBuffer
-
-		},
-
-		intervalChanged_: function ( /* i1, t0, t1 */ ) {
-
-			// empty
-
-		}
-
-	} );
-
-	//!\ DECLARE ALIAS AFTER assign prototype !
-	Object.assign( Interpolant.prototype, {
-
-		//( 0, t, t0 ), returns this.resultBuffer
-		beforeStart_: Interpolant.prototype.copySampleValue_,
-
-		//( N-1, tN-1, t ), returns this.resultBuffer
-		afterEnd_: Interpolant.prototype.copySampleValue_,
-
-	} );
-
-	/**
-	 * Spherical linear unit quaternion interpolant.
-	 *
-	 * @author tschw
-	 */
-
-	function QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	}
-
-	QuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: QuaternionLinearInterpolant,
-
-		interpolate_: function ( i1, t0, t, t1 ) {
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-
-				offset = i1 * stride,
-
-				alpha = ( t - t0 ) / ( t1 - t0 );
-
-			for ( var end = offset + stride; offset !== end; offset += 4 ) {
-
-				Quaternion.slerpFlat( result, 0, values, offset - stride, values, offset, alpha );
-
-			}
-
-			return result;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A Track of quaternion keyframe values.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function QuaternionKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	QuaternionKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: QuaternionKeyframeTrack,
-
-		ValueTypeName: 'quaternion',
-
-		// ValueBufferType is inherited
-
-		DefaultInterpolation: InterpolateLinear,
-
-		InterpolantFactoryMethodLinear: function ( result ) {
-
-			return new QuaternionLinearInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		InterpolantFactoryMethodSmooth: undefined // not yet implemented
-
-	} );
-
-	/**
-	 *
-	 * A Track of keyframe values that represent color.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function ColorKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	ColorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: ColorKeyframeTrack,
-
-		ValueTypeName: 'color'
-
-		// ValueBufferType is inherited
-
-		// DefaultInterpolation is inherited
-
-		// Note: Very basic implementation and nothing special yet.
-		// However, this is the place for color space parameterization.
-
-	} );
-
-	/**
-	 *
-	 * A Track of numeric keyframe values.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function NumberKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	NumberKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: NumberKeyframeTrack,
-
-		ValueTypeName: 'number'
-
-		// ValueBufferType is inherited
-
-		// DefaultInterpolation is inherited
-
-	} );
-
-	/**
-	 * Fast and simple cubic spline interpolant.
-	 *
-	 * It was derived from a Hermitian construction setting the first derivative
-	 * at each sample position to the linear slope between neighboring positions
-	 * over their parameter interval.
-	 *
-	 * @author tschw
-	 */
-
-	function CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-		this._weightPrev = - 0;
-		this._offsetPrev = - 0;
-		this._weightNext = - 0;
-		this._offsetNext = - 0;
-
-	}
-
-	CubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: CubicInterpolant,
-
-		DefaultSettings_: {
-
-			endingStart: ZeroCurvatureEnding,
-			endingEnd: ZeroCurvatureEnding
-
-		},
-
-		intervalChanged_: function ( i1, t0, t1 ) {
-
-			var pp = this.parameterPositions,
-				iPrev = i1 - 2,
-				iNext = i1 + 1,
-
-				tPrev = pp[ iPrev ],
-				tNext = pp[ iNext ];
-
-			if ( tPrev === undefined ) {
-
-				switch ( this.getSettings_().endingStart ) {
-
-					case ZeroSlopeEnding:
-
-						// f'(t0) = 0
-						iPrev = i1;
-						tPrev = 2 * t0 - t1;
-
-						break;
-
-					case WrapAroundEnding:
-
-						// use the other end of the curve
-						iPrev = pp.length - 2;
-						tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];
-
-						break;
-
-					default: // ZeroCurvatureEnding
-
-						// f''(t0) = 0 a.k.a. Natural Spline
-						iPrev = i1;
-						tPrev = t1;
-
-				}
-
-			}
-
-			if ( tNext === undefined ) {
-
-				switch ( this.getSettings_().endingEnd ) {
-
-					case ZeroSlopeEnding:
-
-						// f'(tN) = 0
-						iNext = i1;
-						tNext = 2 * t1 - t0;
-
-						break;
-
-					case WrapAroundEnding:
-
-						// use the other end of the curve
-						iNext = 1;
-						tNext = t1 + pp[ 1 ] - pp[ 0 ];
-
-						break;
-
-					default: // ZeroCurvatureEnding
-
-						// f''(tN) = 0, a.k.a. Natural Spline
-						iNext = i1 - 1;
-						tNext = t0;
-
-				}
-
-			}
-
-			var halfDt = ( t1 - t0 ) * 0.5,
-				stride = this.valueSize;
-
-			this._weightPrev = halfDt / ( t0 - tPrev );
-			this._weightNext = halfDt / ( tNext - t1 );
-			this._offsetPrev = iPrev * stride;
-			this._offsetNext = iNext * stride;
-
-		},
-
-		interpolate_: function ( i1, t0, t, t1 ) {
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-
-				o1 = i1 * stride,		o0 = o1 - stride,
-				oP = this._offsetPrev, 	oN = this._offsetNext,
-				wP = this._weightPrev,	wN = this._weightNext,
-
-				p = ( t - t0 ) / ( t1 - t0 ),
-				pp = p * p,
-				ppp = pp * p;
-
-			// evaluate polynomials
-
-			var sP = - wP * ppp + 2 * wP * pp - wP * p;
-			var s0 = ( 1 + wP ) * ppp + ( - 1.5 - 2 * wP ) * pp + ( - 0.5 + wP ) * p + 1;
-			var s1 = ( - 1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;
-			var sN = wN * ppp - wN * pp;
-
-			// combine data linearly
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				result[ i ] =
-						sP * values[ oP + i ] +
-						s0 * values[ o0 + i ] +
-						s1 * values[ o1 + i ] +
-						sN * values[ oN + i ];
-
-			}
-
-			return result;
-
-		}
-
-	} );
-
-	/**
-	 * @author tschw
-	 */
-
-	function LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	}
-
-	LinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: LinearInterpolant,
-
-		interpolate_: function ( i1, t0, t, t1 ) {
-
-			var result = this.resultBuffer,
-				values = this.sampleValues,
-				stride = this.valueSize,
-
-				offset1 = i1 * stride,
-				offset0 = offset1 - stride,
-
-				weight1 = ( t - t0 ) / ( t1 - t0 ),
-				weight0 = 1 - weight1;
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				result[ i ] =
-						values[ offset0 + i ] * weight0 +
-						values[ offset1 + i ] * weight1;
-
-			}
-
-			return result;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Interpolant that evaluates to the sample value at the position preceeding
-	 * the parameter.
-	 *
-	 * @author tschw
-	 */
-
-	function DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	}
-
-	DiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {
-
-		constructor: DiscreteInterpolant,
-
-		interpolate_: function ( i1 /*, t0, t, t1 */ ) {
-
-			return this.copySampleValue_( i1 - 1 );
-
-		}
-
-	} );
-
-	/**
-	 * @author tschw
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 */
-
-	var AnimationUtils = {
-
-		// same as Array.prototype.slice, but also works on typed arrays
-		arraySlice: function ( array, from, to ) {
-
-			if ( AnimationUtils.isTypedArray( array ) ) {
-
-				// in ios9 array.subarray(from, undefined) will return empty array
-				// but array.subarray(from) or array.subarray(from, len) is correct
-				return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );
-
-			}
-
-			return array.slice( from, to );
-
-		},
-
-		// converts an array to a specific type
-		convertArray: function ( array, type, forceClone ) {
-
-			if ( ! array || // let 'undefined' and 'null' pass
-					! forceClone && array.constructor === type ) return array;
-
-			if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {
-
-				return new type( array ); // create typed array
-
-			}
-
-			return Array.prototype.slice.call( array ); // create Array
-
-		},
-
-		isTypedArray: function ( object ) {
-
-			return ArrayBuffer.isView( object ) &&
-					! ( object instanceof DataView );
-
-		},
-
-		// returns an array by which times and values can be sorted
-		getKeyframeOrder: function ( times ) {
-
-			function compareTime( i, j ) {
-
-				return times[ i ] - times[ j ];
-
-			}
-
-			var n = times.length;
-			var result = new Array( n );
-			for ( var i = 0; i !== n; ++ i ) result[ i ] = i;
-
-			result.sort( compareTime );
-
-			return result;
-
-		},
-
-		// uses the array previously returned by 'getKeyframeOrder' to sort data
-		sortedArray: function ( values, stride, order ) {
-
-			var nValues = values.length;
-			var result = new values.constructor( nValues );
-
-			for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {
-
-				var srcOffset = order[ i ] * stride;
-
-				for ( var j = 0; j !== stride; ++ j ) {
-
-					result[ dstOffset ++ ] = values[ srcOffset + j ];
-
-				}
-
-			}
-
-			return result;
-
-		},
-
-		// function for parsing AOS keyframe formats
-		flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {
-
-			var i = 1, key = jsonKeys[ 0 ];
-
-			while ( key !== undefined && key[ valuePropertyName ] === undefined ) {
-
-				key = jsonKeys[ i ++ ];
-
-			}
-
-			if ( key === undefined ) return; // no data
-
-			var value = key[ valuePropertyName ];
-			if ( value === undefined ) return; // no data
-
-			if ( Array.isArray( value ) ) {
-
-				do {
-
-					value = key[ valuePropertyName ];
-
-					if ( value !== undefined ) {
-
-						times.push( key.time );
-						values.push.apply( values, value ); // push all elements
-
-					}
-
-					key = jsonKeys[ i ++ ];
-
-				} while ( key !== undefined );
-
-			} else if ( value.toArray !== undefined ) {
-
-				// ...assume THREE.Math-ish
-
-				do {
-
-					value = key[ valuePropertyName ];
-
-					if ( value !== undefined ) {
-
-						times.push( key.time );
-						value.toArray( values, values.length );
-
-					}
-
-					key = jsonKeys[ i ++ ];
-
-				} while ( key !== undefined );
-
-			} else {
-
-				// otherwise push as-is
-
-				do {
-
-					value = key[ valuePropertyName ];
-
-					if ( value !== undefined ) {
-
-						times.push( key.time );
-						values.push( value );
-
-					}
-
-					key = jsonKeys[ i ++ ];
-
-				} while ( key !== undefined );
-
-			}
-
-		}
-
-	};
-
-	/**
-	 *
-	 * A timed sequence of keyframes for a specific property.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function KeyframeTrack( name, times, values, interpolation ) {
-
-		if ( name === undefined ) throw new Error( 'THREE.KeyframeTrack: track name is undefined' );
-		if ( times === undefined || times.length === 0 ) throw new Error( 'THREE.KeyframeTrack: no keyframes in track named ' + name );
-
-		this.name = name;
-
-		this.times = AnimationUtils.convertArray( times, this.TimeBufferType );
-		this.values = AnimationUtils.convertArray( values, this.ValueBufferType );
-
-		this.setInterpolation( interpolation || this.DefaultInterpolation );
-
-		this.validate();
-		this.optimize();
-
-	}
-
-	// Static methods:
-
-	Object.assign( KeyframeTrack, {
-
-		// Serialization (in static context, because of constructor invocation
-		// and automatic invocation of .toJSON):
-
-		parse: function ( json ) {
-
-			if ( json.type === undefined ) {
-
-				throw new Error( 'THREE.KeyframeTrack: track type undefined, can not parse' );
-
-			}
-
-			var trackType = KeyframeTrack._getTrackTypeForValueTypeName( json.type );
-
-			if ( json.times === undefined ) {
-
-				var times = [], values = [];
-
-				AnimationUtils.flattenJSON( json.keys, times, values, 'value' );
-
-				json.times = times;
-				json.values = values;
-
-			}
-
-			// derived classes can define a static parse method
-			if ( trackType.parse !== undefined ) {
-
-				return trackType.parse( json );
-
-			} else {
-
-				// by default, we assume a constructor compatible with the base
-				return new trackType( json.name, json.times, json.values, json.interpolation );
-
-			}
-
-		},
-
-		toJSON: function ( track ) {
-
-			var trackType = track.constructor;
-
-			var json;
-
-			// derived classes can define a static toJSON method
-			if ( trackType.toJSON !== undefined ) {
-
-				json = trackType.toJSON( track );
-
-			} else {
-
-				// by default, we assume the data can be serialized as-is
-				json = {
-
-					'name': track.name,
-					'times': AnimationUtils.convertArray( track.times, Array ),
-					'values': AnimationUtils.convertArray( track.values, Array )
-
-				};
-
-				var interpolation = track.getInterpolation();
-
-				if ( interpolation !== track.DefaultInterpolation ) {
-
-					json.interpolation = interpolation;
-
-				}
-
-			}
-
-			json.type = track.ValueTypeName; // mandatory
-
-			return json;
-
-		},
-
-		_getTrackTypeForValueTypeName: function ( typeName ) {
-
-			switch ( typeName.toLowerCase() ) {
-
-				case 'scalar':
-				case 'double':
-				case 'float':
-				case 'number':
-				case 'integer':
-
-					return NumberKeyframeTrack;
-
-				case 'vector':
-				case 'vector2':
-				case 'vector3':
-				case 'vector4':
-
-					return VectorKeyframeTrack;
-
-				case 'color':
-
-					return ColorKeyframeTrack;
-
-				case 'quaternion':
-
-					return QuaternionKeyframeTrack;
-
-				case 'bool':
-				case 'boolean':
-
-					return BooleanKeyframeTrack;
-
-				case 'string':
-
-					return StringKeyframeTrack;
-
-			}
-
-			throw new Error( 'THREE.KeyframeTrack: Unsupported typeName: ' + typeName );
-
-		}
-
-	} );
-
-	Object.assign( KeyframeTrack.prototype, {
-
-		constructor: KeyframeTrack,
-
-		TimeBufferType: Float32Array,
-
-		ValueBufferType: Float32Array,
-
-		DefaultInterpolation: InterpolateLinear,
-
-		InterpolantFactoryMethodDiscrete: function ( result ) {
-
-			return new DiscreteInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		InterpolantFactoryMethodLinear: function ( result ) {
-
-			return new LinearInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		InterpolantFactoryMethodSmooth: function ( result ) {
-
-			return new CubicInterpolant( this.times, this.values, this.getValueSize(), result );
-
-		},
-
-		setInterpolation: function ( interpolation ) {
-
-			var factoryMethod;
-
-			switch ( interpolation ) {
-
-				case InterpolateDiscrete:
-
-					factoryMethod = this.InterpolantFactoryMethodDiscrete;
-
-					break;
-
-				case InterpolateLinear:
-
-					factoryMethod = this.InterpolantFactoryMethodLinear;
-
-					break;
-
-				case InterpolateSmooth:
-
-					factoryMethod = this.InterpolantFactoryMethodSmooth;
-
-					break;
-
-			}
-
-			if ( factoryMethod === undefined ) {
-
-				var message = "unsupported interpolation for " +
-					this.ValueTypeName + " keyframe track named " + this.name;
-
-				if ( this.createInterpolant === undefined ) {
-
-					// fall back to default, unless the default itself is messed up
-					if ( interpolation !== this.DefaultInterpolation ) {
-
-						this.setInterpolation( this.DefaultInterpolation );
-
-					} else {
-
-						throw new Error( message ); // fatal, in this case
-
-					}
-
-				}
-
-				console.warn( 'THREE.KeyframeTrack:', message );
-				return;
-
-			}
-
-			this.createInterpolant = factoryMethod;
-
-		},
-
-		getInterpolation: function () {
-
-			switch ( this.createInterpolant ) {
-
-				case this.InterpolantFactoryMethodDiscrete:
-
-					return InterpolateDiscrete;
-
-				case this.InterpolantFactoryMethodLinear:
-
-					return InterpolateLinear;
-
-				case this.InterpolantFactoryMethodSmooth:
-
-					return InterpolateSmooth;
-
-			}
-
-		},
-
-		getValueSize: function () {
-
-			return this.values.length / this.times.length;
-
-		},
-
-		// move all keyframes either forwards or backwards in time
-		shift: function ( timeOffset ) {
-
-			if ( timeOffset !== 0.0 ) {
-
-				var times = this.times;
-
-				for ( var i = 0, n = times.length; i !== n; ++ i ) {
-
-					times[ i ] += timeOffset;
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
-		scale: function ( timeScale ) {
-
-			if ( timeScale !== 1.0 ) {
-
-				var times = this.times;
-
-				for ( var i = 0, n = times.length; i !== n; ++ i ) {
-
-					times[ i ] *= timeScale;
-
-				}
-
-			}
-
-			return this;
-
-		},
-
-		// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
-		// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
-		trim: function ( startTime, endTime ) {
-
-			var times = this.times,
-				nKeys = times.length,
-				from = 0,
-				to = nKeys - 1;
-
-			while ( from !== nKeys && times[ from ] < startTime ) {
-
-				++ from;
-
-			}
-
-			while ( to !== - 1 && times[ to ] > endTime ) {
-
-				-- to;
-
-			}
-
-			++ to; // inclusive -> exclusive bound
-
-			if ( from !== 0 || to !== nKeys ) {
-
-				// empty tracks are forbidden, so keep at least one keyframe
-				if ( from >= to ) to = Math.max( to, 1 ), from = to - 1;
-
-				var stride = this.getValueSize();
-				this.times = AnimationUtils.arraySlice( times, from, to );
-				this.values = AnimationUtils.arraySlice( this.values, from * stride, to * stride );
-
-			}
-
-			return this;
-
-		},
-
-		// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
-		validate: function () {
-
-			var valid = true;
-
-			var valueSize = this.getValueSize();
-			if ( valueSize - Math.floor( valueSize ) !== 0 ) {
-
-				console.error( 'THREE.KeyframeTrack: Invalid value size in track.', this );
-				valid = false;
-
-			}
-
-			var times = this.times,
-				values = this.values,
-
-				nKeys = times.length;
-
-			if ( nKeys === 0 ) {
-
-				console.error( 'THREE.KeyframeTrack: Track is empty.', this );
-				valid = false;
-
-			}
-
-			var prevTime = null;
-
-			for ( var i = 0; i !== nKeys; i ++ ) {
-
-				var currTime = times[ i ];
-
-				if ( typeof currTime === 'number' && isNaN( currTime ) ) {
-
-					console.error( 'THREE.KeyframeTrack: Time is not a valid number.', this, i, currTime );
-					valid = false;
-					break;
-
-				}
-
-				if ( prevTime !== null && prevTime > currTime ) {
-
-					console.error( 'THREE.KeyframeTrack: Out of order keys.', this, i, currTime, prevTime );
-					valid = false;
-					break;
-
-				}
-
-				prevTime = currTime;
-
-			}
-
-			if ( values !== undefined ) {
-
-				if ( AnimationUtils.isTypedArray( values ) ) {
-
-					for ( var i = 0, n = values.length; i !== n; ++ i ) {
-
-						var value = values[ i ];
-
-						if ( isNaN( value ) ) {
-
-							console.error( 'THREE.KeyframeTrack: Value is not a valid number.', this, i, value );
-							valid = false;
-							break;
-
-						}
-
-					}
-
-				}
-
-			}
-
-			return valid;
-
-		},
-
-		// removes equivalent sequential keys as common in morph target sequences
-		// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
-		optimize: function () {
-
-			var times = this.times,
-				values = this.values,
-				stride = this.getValueSize(),
-
-				smoothInterpolation = this.getInterpolation() === InterpolateSmooth,
-
-				writeIndex = 1,
-				lastIndex = times.length - 1;
-
-			for ( var i = 1; i < lastIndex; ++ i ) {
-
-				var keep = false;
-
-				var time = times[ i ];
-				var timeNext = times[ i + 1 ];
-
-				// remove adjacent keyframes scheduled at the same time
-
-				if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {
-
-					if ( ! smoothInterpolation ) {
-
-						// remove unnecessary keyframes same as their neighbors
-
-						var offset = i * stride,
-							offsetP = offset - stride,
-							offsetN = offset + stride;
-
-						for ( var j = 0; j !== stride; ++ j ) {
-
-							var value = values[ offset + j ];
-
-							if ( value !== values[ offsetP + j ] ||
-								value !== values[ offsetN + j ] ) {
-
-								keep = true;
-								break;
-
-							}
-
-						}
-
-					} else {
-
-						keep = true;
-
-					}
-
-				}
-
-				// in-place compaction
-
-				if ( keep ) {
-
-					if ( i !== writeIndex ) {
-
-						times[ writeIndex ] = times[ i ];
-
-						var readOffset = i * stride,
-							writeOffset = writeIndex * stride;
-
-						for ( var j = 0; j !== stride; ++ j ) {
-
-							values[ writeOffset + j ] = values[ readOffset + j ];
-
-						}
-
-					}
-
-					++ writeIndex;
-
-				}
-
-			}
-
-			// flush last keyframe (compaction looks ahead)
-
-			if ( lastIndex > 0 ) {
-
-				times[ writeIndex ] = times[ lastIndex ];
-
-				for ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) {
-
-					values[ writeOffset + j ] = values[ readOffset + j ];
-
-				}
-
-				++ writeIndex;
-
-			}
-
-			if ( writeIndex !== times.length ) {
-
-				this.times = AnimationUtils.arraySlice( times, 0, writeIndex );
-				this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A Track of vectored keyframe values.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function VectorKeyframeTrack( name, times, values, interpolation ) {
-
-		KeyframeTrack.call( this, name, times, values, interpolation );
-
-	}
-
-	VectorKeyframeTrack.prototype = Object.assign( Object.create( KeyframeTrack.prototype ), {
-
-		constructor: VectorKeyframeTrack,
-
-		ValueTypeName: 'vector'
-
-		// ValueBufferType is inherited
-
-		// DefaultInterpolation is inherited
-
-	} );
-
-	/**
-	 *
-	 * Reusable set of Tracks that represent an animation.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 */
-
-	function AnimationClip( name, duration, tracks ) {
-
-		this.name = name;
-		this.tracks = tracks;
-		this.duration = ( duration !== undefined ) ? duration : - 1;
-
-		this.uuid = _Math.generateUUID();
-
-		// this means it should figure out its duration by scanning the tracks
-		if ( this.duration < 0 ) {
-
-			this.resetDuration();
-
-		}
-
-		this.optimize();
-
-	}
-
-	Object.assign( AnimationClip, {
-
-		parse: function ( json ) {
-
-			var tracks = [],
-				jsonTracks = json.tracks,
-				frameTime = 1.0 / ( json.fps || 1.0 );
-
-			for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {
-
-				tracks.push( KeyframeTrack.parse( jsonTracks[ i ] ).scale( frameTime ) );
-
-			}
-
-			return new AnimationClip( json.name, json.duration, tracks );
-
-		},
-
-		toJSON: function ( clip ) {
-
-			var tracks = [],
-				clipTracks = clip.tracks;
-
-			var json = {
-
-				'name': clip.name,
-				'duration': clip.duration,
-				'tracks': tracks
-
-			};
-
-			for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {
-
-				tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );
-
-			}
-
-			return json;
-
-		},
-
-		CreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {
-
-			var numMorphTargets = morphTargetSequence.length;
-			var tracks = [];
-
-			for ( var i = 0; i < numMorphTargets; i ++ ) {
-
-				var times = [];
-				var values = [];
-
-				times.push(
-					( i + numMorphTargets - 1 ) % numMorphTargets,
-					i,
-					( i + 1 ) % numMorphTargets );
-
-				values.push( 0, 1, 0 );
-
-				var order = AnimationUtils.getKeyframeOrder( times );
-				times = AnimationUtils.sortedArray( times, 1, order );
-				values = AnimationUtils.sortedArray( values, 1, order );
-
-				// if there is a key at the first frame, duplicate it as the
-				// last frame as well for perfect loop.
-				if ( ! noLoop && times[ 0 ] === 0 ) {
-
-					times.push( numMorphTargets );
-					values.push( values[ 0 ] );
-
-				}
-
-				tracks.push(
-					new NumberKeyframeTrack(
-						'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
-						times, values
-					).scale( 1.0 / fps ) );
-
-			}
-
-			return new AnimationClip( name, - 1, tracks );
-
-		},
-
-		findByName: function ( objectOrClipArray, name ) {
-
-			var clipArray = objectOrClipArray;
-
-			if ( ! Array.isArray( objectOrClipArray ) ) {
-
-				var o = objectOrClipArray;
-				clipArray = o.geometry && o.geometry.animations || o.animations;
-
-			}
-
-			for ( var i = 0; i < clipArray.length; i ++ ) {
-
-				if ( clipArray[ i ].name === name ) {
-
-					return clipArray[ i ];
-
-				}
-
-			}
-
-			return null;
-
-		},
-
-		CreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {
-
-			var animationToMorphTargets = {};
-
-			// tested with https://regex101.com/ on trick sequences
-			// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
-			var pattern = /^([\w-]*?)([\d]+)$/;
-
-			// sort morph target names into animation groups based
-			// patterns like Walk_001, Walk_002, Run_001, Run_002
-			for ( var i = 0, il = morphTargets.length; i < il; i ++ ) {
-
-				var morphTarget = morphTargets[ i ];
-				var parts = morphTarget.name.match( pattern );
-
-				if ( parts && parts.length > 1 ) {
-
-					var name = parts[ 1 ];
-
-					var animationMorphTargets = animationToMorphTargets[ name ];
-					if ( ! animationMorphTargets ) {
-
-						animationToMorphTargets[ name ] = animationMorphTargets = [];
-
-					}
-
-					animationMorphTargets.push( morphTarget );
-
-				}
-
-			}
-
-			var clips = [];
-
-			for ( var name in animationToMorphTargets ) {
-
-				clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );
-
-			}
-
-			return clips;
-
-		},
-
-		// parse the animation.hierarchy format
-		parseAnimation: function ( animation, bones ) {
-
-			if ( ! animation ) {
-
-				console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
-				return null;
-
-			}
-
-			var addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {
-
-				// only return track if there are actually keys.
-				if ( animationKeys.length !== 0 ) {
-
-					var times = [];
-					var values = [];
-
-					AnimationUtils.flattenJSON( animationKeys, times, values, propertyName );
-
-					// empty keys are filtered out, so check again
-					if ( times.length !== 0 ) {
-
-						destTracks.push( new trackType( trackName, times, values ) );
-
-					}
-
-				}
-
-			};
-
-			var tracks = [];
-
-			var clipName = animation.name || 'default';
-			// automatic length determination in AnimationClip.
-			var duration = animation.length || - 1;
-			var fps = animation.fps || 30;
-
-			var hierarchyTracks = animation.hierarchy || [];
-
-			for ( var h = 0; h < hierarchyTracks.length; h ++ ) {
-
-				var animationKeys = hierarchyTracks[ h ].keys;
-
-				// skip empty tracks
-				if ( ! animationKeys || animationKeys.length === 0 ) continue;
-
-				// process morph targets
-				if ( animationKeys[ 0 ].morphTargets ) {
-
-					// figure out all morph targets used in this track
-					var morphTargetNames = {};
-
-					for ( var k = 0; k < animationKeys.length; k ++ ) {
-
-						if ( animationKeys[ k ].morphTargets ) {
-
-							for ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {
-
-								morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;
-
-							}
-
-						}
-
-					}
-
-					// create a track for each morph target with all zero
-					// morphTargetInfluences except for the keys in which
-					// the morphTarget is named.
-					for ( var morphTargetName in morphTargetNames ) {
-
-						var times = [];
-						var values = [];
-
-						for ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {
-
-							var animationKey = animationKeys[ k ];
-
-							times.push( animationKey.time );
-							values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );
-
-						}
-
-						tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );
-
-					}
-
-					duration = morphTargetNames.length * ( fps || 1.0 );
-
-				} else {
-
-					// ...assume skeletal animation
-
-					var boneName = '.bones[' + bones[ h ].name + ']';
-
-					addNonemptyTrack(
-						VectorKeyframeTrack, boneName + '.position',
-						animationKeys, 'pos', tracks );
-
-					addNonemptyTrack(
-						QuaternionKeyframeTrack, boneName + '.quaternion',
-						animationKeys, 'rot', tracks );
-
-					addNonemptyTrack(
-						VectorKeyframeTrack, boneName + '.scale',
-						animationKeys, 'scl', tracks );
-
-				}
-
-			}
-
-			if ( tracks.length === 0 ) {
-
-				return null;
-
-			}
-
-			var clip = new AnimationClip( clipName, duration, tracks );
-
-			return clip;
-
-		}
-
-	} );
-
-	Object.assign( AnimationClip.prototype, {
-
-		resetDuration: function () {
-
-			var tracks = this.tracks, duration = 0;
-
-			for ( var i = 0, n = tracks.length; i !== n; ++ i ) {
-
-				var track = this.tracks[ i ];
-
-				duration = Math.max( duration, track.times[ track.times.length - 1 ] );
-
-			}
-
-			this.duration = duration;
-
-		},
-
-		trim: function () {
-
-			for ( var i = 0; i < this.tracks.length; i ++ ) {
-
-				this.tracks[ i ].trim( 0, this.duration );
-
-			}
-
-			return this;
-
-		},
-
-		optimize: function () {
-
-			for ( var i = 0; i < this.tracks.length; i ++ ) {
-
-				this.tracks[ i ].optimize();
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function MaterialLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-		this.textures = {};
-
-	}
-
-	Object.assign( MaterialLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new FileLoader( scope.manager );
-			loader.load( url, function ( text ) {
-
-				onLoad( scope.parse( JSON.parse( text ) ) );
-
-			}, onProgress, onError );
-
-		},
-
-		setTextures: function ( value ) {
-
-			this.textures = value;
-
-		},
-
-		parse: function ( json ) {
-
-			var textures = this.textures;
-
-			function getTexture( name ) {
-
-				if ( textures[ name ] === undefined ) {
-
-					console.warn( 'THREE.MaterialLoader: Undefined texture', name );
-
-				}
-
-				return textures[ name ];
-
-			}
-
-			var material = new Materials[ json.type ]();
-
-			if ( json.uuid !== undefined ) material.uuid = json.uuid;
-			if ( json.name !== undefined ) material.name = json.name;
-			if ( json.color !== undefined ) material.color.setHex( json.color );
-			if ( json.roughness !== undefined ) material.roughness = json.roughness;
-			if ( json.metalness !== undefined ) material.metalness = json.metalness;
-			if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );
-			if ( json.specular !== undefined ) material.specular.setHex( json.specular );
-			if ( json.shininess !== undefined ) material.shininess = json.shininess;
-			if ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;
-			if ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;
-			if ( json.uniforms !== undefined ) material.uniforms = json.uniforms;
-			if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
-			if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
-			if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;
-			if ( json.fog !== undefined ) material.fog = json.fog;
-			if ( json.flatShading !== undefined ) material.flatShading = json.flatShading;
-			if ( json.blending !== undefined ) material.blending = json.blending;
-			if ( json.side !== undefined ) material.side = json.side;
-			if ( json.opacity !== undefined ) material.opacity = json.opacity;
-			if ( json.transparent !== undefined ) material.transparent = json.transparent;
-			if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
-			if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
-			if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
-			if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;
-			if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
-			if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
-			if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
-			if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;
-
-			if ( json.rotation !== undefined ) material.rotation = json.rotation;
-
-			if ( json.linewidth !== 1 ) material.linewidth = json.linewidth;
-			if ( json.dashSize !== undefined ) material.dashSize = json.dashSize;
-			if ( json.gapSize !== undefined ) material.gapSize = json.gapSize;
-			if ( json.scale !== undefined ) material.scale = json.scale;
-
-			if ( json.skinning !== undefined ) material.skinning = json.skinning;
-			if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;
-			if ( json.dithering !== undefined ) material.dithering = json.dithering;
-
-			if ( json.visible !== undefined ) material.visible = json.visible;
-			if ( json.userData !== undefined ) material.userData = json.userData;
-
-			// Deprecated
-
-			if ( json.shading !== undefined ) material.flatShading = json.shading === 1; // THREE.FlatShading
-
-			// for PointsMaterial
-
-			if ( json.size !== undefined ) material.size = json.size;
-			if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;
-
-			// maps
-
-			if ( json.map !== undefined ) material.map = getTexture( json.map );
-
-			if ( json.alphaMap !== undefined ) {
-
-				material.alphaMap = getTexture( json.alphaMap );
-				material.transparent = true;
-
-			}
-
-			if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
-			if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;
-
-			if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
-			if ( json.normalScale !== undefined ) {
-
-				var normalScale = json.normalScale;
-
-				if ( Array.isArray( normalScale ) === false ) {
-
-					// Blender exporter used to export a scalar. See #7459
-
-					normalScale = [ normalScale, normalScale ];
-
-				}
-
-				material.normalScale = new Vector2().fromArray( normalScale );
-
-			}
-
-			if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
-			if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
-			if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;
-
-			if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
-			if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );
-
-			if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
-			if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;
-
-			if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );
-
-			if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );
-
-			if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;
-
-			if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
-			if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;
-
-			if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
-			if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;
-
-			if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );
-
-			return material;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function BufferGeometryLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( BufferGeometryLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new FileLoader( scope.manager );
-			loader.load( url, function ( text ) {
-
-				onLoad( scope.parse( JSON.parse( text ) ) );
-
-			}, onProgress, onError );
-
-		},
-
-		parse: function ( json ) {
-
-			var geometry = new BufferGeometry();
-
-			var index = json.data.index;
-
-			if ( index !== undefined ) {
-
-				var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
-				geometry.setIndex( new BufferAttribute( typedArray, 1 ) );
-
-			}
-
-			var attributes = json.data.attributes;
-
-			for ( var key in attributes ) {
-
-				var attribute = attributes[ key ];
-				var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );
-
-				geometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );
-
-			}
-
-			var groups = json.data.groups || json.data.drawcalls || json.data.offsets;
-
-			if ( groups !== undefined ) {
-
-				for ( var i = 0, n = groups.length; i !== n; ++ i ) {
-
-					var group = groups[ i ];
-
-					geometry.addGroup( group.start, group.count, group.materialIndex );
-
-				}
-
-			}
-
-			var boundingSphere = json.data.boundingSphere;
-
-			if ( boundingSphere !== undefined ) {
-
-				var center = new Vector3();
-
-				if ( boundingSphere.center !== undefined ) {
-
-					center.fromArray( boundingSphere.center );
-
-				}
-
-				geometry.boundingSphere = new Sphere( center, boundingSphere.radius );
-
-			}
-
-			return geometry;
-
-		}
-
-	} );
-
-	var TYPED_ARRAYS = {
-		Int8Array: Int8Array,
-		Uint8Array: Uint8Array,
-		// Workaround for IE11 pre KB2929437. See #11440
-		Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,
-		Int16Array: Int16Array,
-		Uint16Array: Uint16Array,
-		Int32Array: Int32Array,
-		Uint32Array: Uint32Array,
-		Float32Array: Float32Array,
-		Float64Array: Float64Array
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Loader() {
-
-		this.onLoadStart = function () {};
-		this.onLoadProgress = function () {};
-		this.onLoadComplete = function () {};
-
-	}
-
-	Loader.Handlers = {
-
-		handlers: [],
-
-		add: function ( regex, loader ) {
-
-			this.handlers.push( regex, loader );
-
-		},
-
-		get: function ( file ) {
-
-			var handlers = this.handlers;
-
-			for ( var i = 0, l = handlers.length; i < l; i += 2 ) {
-
-				var regex = handlers[ i ];
-				var loader = handlers[ i + 1 ];
-
-				if ( regex.test( file ) ) {
-
-					return loader;
-
-				}
-
-			}
-
-			return null;
-
-		}
-
-	};
-
-	Object.assign( Loader.prototype, {
-
-		crossOrigin: undefined,
-
-		initMaterials: function ( materials, texturePath, crossOrigin ) {
-
-			var array = [];
-
-			for ( var i = 0; i < materials.length; ++ i ) {
-
-				array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );
-
-			}
-
-			return array;
-
-		},
-
-		createMaterial: ( function () {
-
-			var BlendingMode = {
-				NoBlending: NoBlending,
-				NormalBlending: NormalBlending,
-				AdditiveBlending: AdditiveBlending,
-				SubtractiveBlending: SubtractiveBlending,
-				MultiplyBlending: MultiplyBlending,
-				CustomBlending: CustomBlending
-			};
-
-			var color = new Color();
-			var textureLoader = new TextureLoader();
-			var materialLoader = new MaterialLoader();
-
-			return function createMaterial( m, texturePath, crossOrigin ) {
-
-				// convert from old material format
-
-				var textures = {};
-
-				function loadTexture( path, repeat, offset, wrap, anisotropy ) {
-
-					var fullPath = texturePath + path;
-					var loader = Loader.Handlers.get( fullPath );
-
-					var texture;
-
-					if ( loader !== null ) {
-
-						texture = loader.load( fullPath );
-
-					} else {
-
-						textureLoader.setCrossOrigin( crossOrigin );
-						texture = textureLoader.load( fullPath );
-
-					}
-
-					if ( repeat !== undefined ) {
-
-						texture.repeat.fromArray( repeat );
-
-						if ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;
-						if ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;
-
-					}
-
-					if ( offset !== undefined ) {
-
-						texture.offset.fromArray( offset );
-
-					}
-
-					if ( wrap !== undefined ) {
-
-						if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;
-						if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;
-
-						if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;
-						if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;
-
-					}
-
-					if ( anisotropy !== undefined ) {
-
-						texture.anisotropy = anisotropy;
-
-					}
-
-					var uuid = _Math.generateUUID();
-
-					textures[ uuid ] = texture;
-
-					return uuid;
-
-				}
-
-				//
-
-				var json = {
-					uuid: _Math.generateUUID(),
-					type: 'MeshLambertMaterial'
-				};
-
-				for ( var name in m ) {
-
-					var value = m[ name ];
-
-					switch ( name ) {
-
-						case 'DbgColor':
-						case 'DbgIndex':
-						case 'opticalDensity':
-						case 'illumination':
-							break;
-						case 'DbgName':
-							json.name = value;
-							break;
-						case 'blending':
-							json.blending = BlendingMode[ value ];
-							break;
-						case 'colorAmbient':
-						case 'mapAmbient':
-							console.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );
-							break;
-						case 'colorDiffuse':
-							json.color = color.fromArray( value ).getHex();
-							break;
-						case 'colorSpecular':
-							json.specular = color.fromArray( value ).getHex();
-							break;
-						case 'colorEmissive':
-							json.emissive = color.fromArray( value ).getHex();
-							break;
-						case 'specularCoef':
-							json.shininess = value;
-							break;
-						case 'shading':
-							if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
-							if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
-							if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';
-							break;
-						case 'mapDiffuse':
-							json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );
-							break;
-						case 'mapDiffuseRepeat':
-						case 'mapDiffuseOffset':
-						case 'mapDiffuseWrap':
-						case 'mapDiffuseAnisotropy':
-							break;
-						case 'mapEmissive':
-							json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );
-							break;
-						case 'mapEmissiveRepeat':
-						case 'mapEmissiveOffset':
-						case 'mapEmissiveWrap':
-						case 'mapEmissiveAnisotropy':
-							break;
-						case 'mapLight':
-							json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );
-							break;
-						case 'mapLightRepeat':
-						case 'mapLightOffset':
-						case 'mapLightWrap':
-						case 'mapLightAnisotropy':
-							break;
-						case 'mapAO':
-							json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );
-							break;
-						case 'mapAORepeat':
-						case 'mapAOOffset':
-						case 'mapAOWrap':
-						case 'mapAOAnisotropy':
-							break;
-						case 'mapBump':
-							json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );
-							break;
-						case 'mapBumpScale':
-							json.bumpScale = value;
-							break;
-						case 'mapBumpRepeat':
-						case 'mapBumpOffset':
-						case 'mapBumpWrap':
-						case 'mapBumpAnisotropy':
-							break;
-						case 'mapNormal':
-							json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );
-							break;
-						case 'mapNormalFactor':
-							json.normalScale = [ value, value ];
-							break;
-						case 'mapNormalRepeat':
-						case 'mapNormalOffset':
-						case 'mapNormalWrap':
-						case 'mapNormalAnisotropy':
-							break;
-						case 'mapSpecular':
-							json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );
-							break;
-						case 'mapSpecularRepeat':
-						case 'mapSpecularOffset':
-						case 'mapSpecularWrap':
-						case 'mapSpecularAnisotropy':
-							break;
-						case 'mapMetalness':
-							json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );
-							break;
-						case 'mapMetalnessRepeat':
-						case 'mapMetalnessOffset':
-						case 'mapMetalnessWrap':
-						case 'mapMetalnessAnisotropy':
-							break;
-						case 'mapRoughness':
-							json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );
-							break;
-						case 'mapRoughnessRepeat':
-						case 'mapRoughnessOffset':
-						case 'mapRoughnessWrap':
-						case 'mapRoughnessAnisotropy':
-							break;
-						case 'mapAlpha':
-							json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );
-							break;
-						case 'mapAlphaRepeat':
-						case 'mapAlphaOffset':
-						case 'mapAlphaWrap':
-						case 'mapAlphaAnisotropy':
-							break;
-						case 'flipSided':
-							json.side = BackSide;
-							break;
-						case 'doubleSided':
-							json.side = DoubleSide;
-							break;
-						case 'transparency':
-							console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );
-							json.opacity = value;
-							break;
-						case 'depthTest':
-						case 'depthWrite':
-						case 'colorWrite':
-						case 'opacity':
-						case 'reflectivity':
-						case 'transparent':
-						case 'visible':
-						case 'wireframe':
-							json[ name ] = value;
-							break;
-						case 'vertexColors':
-							if ( value === true ) json.vertexColors = VertexColors;
-							if ( value === 'face' ) json.vertexColors = FaceColors;
-							break;
-						default:
-							console.error( 'THREE.Loader.createMaterial: Unsupported', name, value );
-							break;
-
-					}
-
-				}
-
-				if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
-				if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;
-
-				if ( json.opacity < 1 ) json.transparent = true;
-
-				materialLoader.setTextures( textures );
-
-				return materialLoader.parse( json );
-
-			};
-
-		} )()
-
-	} );
-
-	/**
-	 * @author Don McCurdy / https://www.donmccurdy.com
-	 */
-
-	var LoaderUtils = {
-
-		decodeText: function ( array ) {
-
-			if ( typeof TextDecoder !== 'undefined' ) {
-
-				return new TextDecoder().decode( array );
-
-			}
-
-			// Avoid the String.fromCharCode.apply(null, array) shortcut, which
-			// throws a "maximum call stack size exceeded" error for large arrays.
-
-			var s = '';
-
-			for ( var i = 0, il = array.length; i < il; i ++ ) {
-
-				// Implicitly assumes little-endian.
-				s += String.fromCharCode( array[ i ] );
-
-			}
-
-			// Merges multi-byte utf-8 characters.
-			return decodeURIComponent( escape( s ) );
-
-		},
-
-		extractUrlBase: function ( url ) {
-
-			var parts = url.split( '/' );
-
-			if ( parts.length === 1 ) return './';
-
-			parts.pop();
-
-			return parts.join( '/' ) + '/';
-
-		}
-
-	};
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function JSONLoader( manager ) {
-
-		if ( typeof manager === 'boolean' ) {
-
-			console.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );
-			manager = undefined;
-
-		}
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-		this.withCredentials = false;
-
-	}
-
-	Object.assign( JSONLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var texturePath = this.texturePath && ( typeof this.texturePath === 'string' ) ? this.texturePath : LoaderUtils.extractUrlBase( url );
-
-			var loader = new FileLoader( this.manager );
-			loader.setWithCredentials( this.withCredentials );
-			loader.load( url, function ( text ) {
-
-				var json = JSON.parse( text );
-				var metadata = json.metadata;
-
-				if ( metadata !== undefined ) {
-
-					var type = metadata.type;
-
-					if ( type !== undefined ) {
-
-						if ( type.toLowerCase() === 'object' ) {
-
-							console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );
-							return;
-
-						}
-
-						if ( type.toLowerCase() === 'scene' ) {
-
-							console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.SceneLoader instead.' );
-							return;
-
-						}
-
-					}
-
-				}
-
-				var object = scope.parse( json, texturePath );
-				onLoad( object.geometry, object.materials );
-
-			}, onProgress, onError );
-
-		},
-
-		setTexturePath: function ( value ) {
-
-			this.texturePath = value;
-
-		},
-
-		parse: ( function () {
-
-			function parseModel( json, geometry ) {
-
-				function isBitSet( value, position ) {
-
-					return value & ( 1 << position );
-
-				}
-
-				var i, j, fi,
-
-					offset, zLength,
-
-					colorIndex, normalIndex, uvIndex, materialIndex,
-
-					type,
-					isQuad,
-					hasMaterial,
-					hasFaceVertexUv,
-					hasFaceNormal, hasFaceVertexNormal,
-					hasFaceColor, hasFaceVertexColor,
-
-					vertex, face, faceA, faceB, hex, normal,
-
-					uvLayer, uv, u, v,
-
-					faces = json.faces,
-					vertices = json.vertices,
-					normals = json.normals,
-					colors = json.colors,
-
-					scale = json.scale,
-
-					nUvLayers = 0;
-
-
-				if ( json.uvs !== undefined ) {
-
-					// disregard empty arrays
-
-					for ( i = 0; i < json.uvs.length; i ++ ) {
-
-						if ( json.uvs[ i ].length ) nUvLayers ++;
-
-					}
-
-					for ( i = 0; i < nUvLayers; i ++ ) {
-
-						geometry.faceVertexUvs[ i ] = [];
-
-					}
-
-				}
-
-				offset = 0;
-				zLength = vertices.length;
-
-				while ( offset < zLength ) {
-
-					vertex = new Vector3();
-
-					vertex.x = vertices[ offset ++ ] * scale;
-					vertex.y = vertices[ offset ++ ] * scale;
-					vertex.z = vertices[ offset ++ ] * scale;
-
-					geometry.vertices.push( vertex );
-
-				}
-
-				offset = 0;
-				zLength = faces.length;
-
-				while ( offset < zLength ) {
-
-					type = faces[ offset ++ ];
-
-					isQuad = isBitSet( type, 0 );
-					hasMaterial = isBitSet( type, 1 );
-					hasFaceVertexUv = isBitSet( type, 3 );
-					hasFaceNormal = isBitSet( type, 4 );
-					hasFaceVertexNormal = isBitSet( type, 5 );
-					hasFaceColor = isBitSet( type, 6 );
-					hasFaceVertexColor = isBitSet( type, 7 );
-
-					// console.log("type", type, "bits", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);
-
-					if ( isQuad ) {
-
-						faceA = new Face3();
-						faceA.a = faces[ offset ];
-						faceA.b = faces[ offset + 1 ];
-						faceA.c = faces[ offset + 3 ];
-
-						faceB = new Face3();
-						faceB.a = faces[ offset + 1 ];
-						faceB.b = faces[ offset + 2 ];
-						faceB.c = faces[ offset + 3 ];
-
-						offset += 4;
-
-						if ( hasMaterial ) {
-
-							materialIndex = faces[ offset ++ ];
-							faceA.materialIndex = materialIndex;
-							faceB.materialIndex = materialIndex;
-
-						}
-
-						// to get face <=> uv index correspondence
-
-						fi = geometry.faces.length;
-
-						if ( hasFaceVertexUv ) {
-
-							for ( i = 0; i < nUvLayers; i ++ ) {
-
-								uvLayer = json.uvs[ i ];
-
-								geometry.faceVertexUvs[ i ][ fi ] = [];
-								geometry.faceVertexUvs[ i ][ fi + 1 ] = [];
-
-								for ( j = 0; j < 4; j ++ ) {
-
-									uvIndex = faces[ offset ++ ];
-
-									u = uvLayer[ uvIndex * 2 ];
-									v = uvLayer[ uvIndex * 2 + 1 ];
-
-									uv = new Vector2( u, v );
-
-									if ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );
-									if ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );
-
-								}
-
-							}
-
-						}
-
-						if ( hasFaceNormal ) {
-
-							normalIndex = faces[ offset ++ ] * 3;
-
-							faceA.normal.set(
-								normals[ normalIndex ++ ],
-								normals[ normalIndex ++ ],
-								normals[ normalIndex ]
-							);
-
-							faceB.normal.copy( faceA.normal );
-
-						}
-
-						if ( hasFaceVertexNormal ) {
-
-							for ( i = 0; i < 4; i ++ ) {
-
-								normalIndex = faces[ offset ++ ] * 3;
-
-								normal = new Vector3(
-									normals[ normalIndex ++ ],
-									normals[ normalIndex ++ ],
-									normals[ normalIndex ]
-								);
-
-
-								if ( i !== 2 ) faceA.vertexNormals.push( normal );
-								if ( i !== 0 ) faceB.vertexNormals.push( normal );
-
-							}
-
-						}
-
-
-						if ( hasFaceColor ) {
-
-							colorIndex = faces[ offset ++ ];
-							hex = colors[ colorIndex ];
-
-							faceA.color.setHex( hex );
-							faceB.color.setHex( hex );
-
-						}
-
-
-						if ( hasFaceVertexColor ) {
-
-							for ( i = 0; i < 4; i ++ ) {
-
-								colorIndex = faces[ offset ++ ];
-								hex = colors[ colorIndex ];
-
-								if ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) );
-								if ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) );
-
-							}
-
-						}
-
-						geometry.faces.push( faceA );
-						geometry.faces.push( faceB );
-
-					} else {
-
-						face = new Face3();
-						face.a = faces[ offset ++ ];
-						face.b = faces[ offset ++ ];
-						face.c = faces[ offset ++ ];
-
-						if ( hasMaterial ) {
-
-							materialIndex = faces[ offset ++ ];
-							face.materialIndex = materialIndex;
-
-						}
-
-						// to get face <=> uv index correspondence
-
-						fi = geometry.faces.length;
-
-						if ( hasFaceVertexUv ) {
-
-							for ( i = 0; i < nUvLayers; i ++ ) {
-
-								uvLayer = json.uvs[ i ];
-
-								geometry.faceVertexUvs[ i ][ fi ] = [];
-
-								for ( j = 0; j < 3; j ++ ) {
-
-									uvIndex = faces[ offset ++ ];
-
-									u = uvLayer[ uvIndex * 2 ];
-									v = uvLayer[ uvIndex * 2 + 1 ];
-
-									uv = new Vector2( u, v );
-
-									geometry.faceVertexUvs[ i ][ fi ].push( uv );
-
-								}
-
-							}
-
-						}
-
-						if ( hasFaceNormal ) {
-
-							normalIndex = faces[ offset ++ ] * 3;
-
-							face.normal.set(
-								normals[ normalIndex ++ ],
-								normals[ normalIndex ++ ],
-								normals[ normalIndex ]
-							);
-
-						}
-
-						if ( hasFaceVertexNormal ) {
-
-							for ( i = 0; i < 3; i ++ ) {
-
-								normalIndex = faces[ offset ++ ] * 3;
-
-								normal = new Vector3(
-									normals[ normalIndex ++ ],
-									normals[ normalIndex ++ ],
-									normals[ normalIndex ]
-								);
-
-								face.vertexNormals.push( normal );
-
-							}
-
-						}
-
-
-						if ( hasFaceColor ) {
-
-							colorIndex = faces[ offset ++ ];
-							face.color.setHex( colors[ colorIndex ] );
-
-						}
-
-
-						if ( hasFaceVertexColor ) {
-
-							for ( i = 0; i < 3; i ++ ) {
-
-								colorIndex = faces[ offset ++ ];
-								face.vertexColors.push( new Color( colors[ colorIndex ] ) );
-
-							}
-
-						}
-
-						geometry.faces.push( face );
-
-					}
-
-				}
-
-			}
-
-			function parseSkin( json, geometry ) {
-
-				var influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;
-
-				if ( json.skinWeights ) {
-
-					for ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {
-
-						var x = json.skinWeights[ i ];
-						var y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;
-						var z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;
-						var w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;
-
-						geometry.skinWeights.push( new Vector4( x, y, z, w ) );
-
-					}
-
-				}
-
-				if ( json.skinIndices ) {
-
-					for ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {
-
-						var a = json.skinIndices[ i ];
-						var b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;
-						var c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;
-						var d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;
-
-						geometry.skinIndices.push( new Vector4( a, b, c, d ) );
-
-					}
-
-				}
-
-				geometry.bones = json.bones;
-
-				if ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {
-
-					console.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +
-						geometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );
-
-				}
-
-			}
-
-			function parseMorphing( json, geometry ) {
-
-				var scale = json.scale;
-
-				if ( json.morphTargets !== undefined ) {
-
-					for ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {
-
-						geometry.morphTargets[ i ] = {};
-						geometry.morphTargets[ i ].name = json.morphTargets[ i ].name;
-						geometry.morphTargets[ i ].vertices = [];
-
-						var dstVertices = geometry.morphTargets[ i ].vertices;
-						var srcVertices = json.morphTargets[ i ].vertices;
-
-						for ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {
-
-							var vertex = new Vector3();
-							vertex.x = srcVertices[ v ] * scale;
-							vertex.y = srcVertices[ v + 1 ] * scale;
-							vertex.z = srcVertices[ v + 2 ] * scale;
-
-							dstVertices.push( vertex );
-
-						}
-
-					}
-
-				}
-
-				if ( json.morphColors !== undefined && json.morphColors.length > 0 ) {
-
-					console.warn( 'THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.' );
-
-					var faces = geometry.faces;
-					var morphColors = json.morphColors[ 0 ].colors;
-
-					for ( var i = 0, l = faces.length; i < l; i ++ ) {
-
-						faces[ i ].color.fromArray( morphColors, i * 3 );
-
-					}
-
-				}
-
-			}
-
-			function parseAnimations( json, geometry ) {
-
-				var outputAnimations = [];
-
-				// parse old style Bone/Hierarchy animations
-				var animations = [];
-
-				if ( json.animation !== undefined ) {
-
-					animations.push( json.animation );
-
-				}
-
-				if ( json.animations !== undefined ) {
-
-					if ( json.animations.length ) {
-
-						animations = animations.concat( json.animations );
-
-					} else {
-
-						animations.push( json.animations );
-
-					}
-
-				}
-
-				for ( var i = 0; i < animations.length; i ++ ) {
-
-					var clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones );
-					if ( clip ) outputAnimations.push( clip );
-
-				}
-
-				// parse implicit morph animations
-				if ( geometry.morphTargets ) {
-
-					// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.
-					var morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );
-					outputAnimations = outputAnimations.concat( morphAnimationClips );
-
-				}
-
-				if ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;
-
-			}
-
-			return function parse( json, texturePath ) {
-
-				if ( json.data !== undefined ) {
-
-					// Geometry 4.0 spec
-					json = json.data;
-
-				}
-
-				if ( json.scale !== undefined ) {
-
-					json.scale = 1.0 / json.scale;
-
-				} else {
-
-					json.scale = 1.0;
-
-				}
-
-				var geometry = new Geometry();
-
-				parseModel( json, geometry );
-				parseSkin( json, geometry );
-				parseMorphing( json, geometry );
-				parseAnimations( json, geometry );
-
-				geometry.computeFaceNormals();
-				geometry.computeBoundingSphere();
-
-				if ( json.materials === undefined || json.materials.length === 0 ) {
-
-					return { geometry: geometry };
-
-				} else {
-
-					var materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );
-
-					return { geometry: geometry, materials: materials };
-
-				}
-
-			};
-
-		} )()
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function ObjectLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-		this.texturePath = '';
-
-	}
-
-	Object.assign( ObjectLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			if ( this.texturePath === '' ) {
-
-				this.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );
-
-			}
-
-			var scope = this;
-
-			var loader = new FileLoader( scope.manager );
-			loader.load( url, function ( text ) {
-
-				var json = null;
-
-				try {
-
-					json = JSON.parse( text );
-
-				} catch ( error ) {
-
-					if ( onError !== undefined ) onError( error );
-
-					console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );
-
-					return;
-
-				}
-
-				var metadata = json.metadata;
-
-				if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {
-
-					console.error( 'THREE.ObjectLoader: Can\'t load ' + url + '. Use THREE.JSONLoader instead.' );
-					return;
-
-				}
-
-				scope.parse( json, onLoad );
-
-			}, onProgress, onError );
-
-		},
-
-		setTexturePath: function ( value ) {
-
-			this.texturePath = value;
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-
-		},
-
-		parse: function ( json, onLoad ) {
-
-			var shapes = this.parseShape( json.shapes );
-			var geometries = this.parseGeometries( json.geometries, shapes );
-
-			var images = this.parseImages( json.images, function () {
-
-				if ( onLoad !== undefined ) onLoad( object );
-
-			} );
-
-			var textures = this.parseTextures( json.textures, images );
-			var materials = this.parseMaterials( json.materials, textures );
-
-			var object = this.parseObject( json.object, geometries, materials );
-
-			if ( json.animations ) {
-
-				object.animations = this.parseAnimations( json.animations );
-
-			}
-
-			if ( json.images === undefined || json.images.length === 0 ) {
-
-				if ( onLoad !== undefined ) onLoad( object );
-
-			}
-
-			return object;
-
-		},
-
-		parseShape: function ( json ) {
-
-			var shapes = {};
-
-			if ( json !== undefined ) {
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var shape = new Shape().fromJSON( json[ i ] );
-
-					shapes[ shape.uuid ] = shape;
-
-				}
-
-			}
-
-			return shapes;
-
-		},
-
-		parseGeometries: function ( json, shapes ) {
-
-			var geometries = {};
-
-			if ( json !== undefined ) {
-
-				var geometryLoader = new JSONLoader();
-				var bufferGeometryLoader = new BufferGeometryLoader();
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var geometry;
-					var data = json[ i ];
-
-					switch ( data.type ) {
-
-						case 'PlaneGeometry':
-						case 'PlaneBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.width,
-								data.height,
-								data.widthSegments,
-								data.heightSegments
-							);
-
-							break;
-
-						case 'BoxGeometry':
-						case 'BoxBufferGeometry':
-						case 'CubeGeometry': // backwards compatible
-
-							geometry = new Geometries[ data.type ](
-								data.width,
-								data.height,
-								data.depth,
-								data.widthSegments,
-								data.heightSegments,
-								data.depthSegments
-							);
-
-							break;
-
-						case 'CircleGeometry':
-						case 'CircleBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.segments,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'CylinderGeometry':
-						case 'CylinderBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radiusTop,
-								data.radiusBottom,
-								data.height,
-								data.radialSegments,
-								data.heightSegments,
-								data.openEnded,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'ConeGeometry':
-						case 'ConeBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.height,
-								data.radialSegments,
-								data.heightSegments,
-								data.openEnded,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'SphereGeometry':
-						case 'SphereBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.widthSegments,
-								data.heightSegments,
-								data.phiStart,
-								data.phiLength,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'DodecahedronGeometry':
-						case 'DodecahedronBufferGeometry':
-						case 'IcosahedronGeometry':
-						case 'IcosahedronBufferGeometry':
-						case 'OctahedronGeometry':
-						case 'OctahedronBufferGeometry':
-						case 'TetrahedronGeometry':
-						case 'TetrahedronBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.detail
-							);
-
-							break;
-
-						case 'RingGeometry':
-						case 'RingBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.innerRadius,
-								data.outerRadius,
-								data.thetaSegments,
-								data.phiSegments,
-								data.thetaStart,
-								data.thetaLength
-							);
-
-							break;
-
-						case 'TorusGeometry':
-						case 'TorusBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.tube,
-								data.radialSegments,
-								data.tubularSegments,
-								data.arc
-							);
-
-							break;
-
-						case 'TorusKnotGeometry':
-						case 'TorusKnotBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.radius,
-								data.tube,
-								data.tubularSegments,
-								data.radialSegments,
-								data.p,
-								data.q
-							);
-
-							break;
-
-						case 'LatheGeometry':
-						case 'LatheBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.points,
-								data.segments,
-								data.phiStart,
-								data.phiLength
-							);
-
-							break;
-
-						case 'PolyhedronGeometry':
-						case 'PolyhedronBufferGeometry':
-
-							geometry = new Geometries[ data.type ](
-								data.vertices,
-								data.indices,
-								data.radius,
-								data.details
-							);
-
-							break;
-
-						case 'ShapeGeometry':
-						case 'ShapeBufferGeometry':
-
-							var geometryShapes = [];
-
-							for ( var i = 0, l = data.shapes.length; i < l; i ++ ) {
-
-								var shape = shapes[ data.shapes[ i ] ];
-
-								geometryShapes.push( shape );
-
-							}
-
-							geometry = new Geometries[ data.type ](
-								geometryShapes,
-								data.curveSegments
-							);
-
-							break;
-
-						case 'BufferGeometry':
-
-							geometry = bufferGeometryLoader.parse( data );
-
-							break;
-
-						case 'Geometry':
-
-							geometry = geometryLoader.parse( data, this.texturePath ).geometry;
-
-							break;
-
-						default:
-
-							console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' );
-
-							continue;
-
-					}
-
-					geometry.uuid = data.uuid;
-
-					if ( data.name !== undefined ) geometry.name = data.name;
-
-					geometries[ data.uuid ] = geometry;
-
-				}
-
-			}
-
-			return geometries;
-
-		},
-
-		parseMaterials: function ( json, textures ) {
-
-			var materials = {};
-
-			if ( json !== undefined ) {
-
-				var loader = new MaterialLoader();
-				loader.setTextures( textures );
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var data = json[ i ];
-
-					if ( data.type === 'MultiMaterial' ) {
-
-						// Deprecated
-
-						var array = [];
-
-						for ( var j = 0; j < data.materials.length; j ++ ) {
-
-							array.push( loader.parse( data.materials[ j ] ) );
-
-						}
-
-						materials[ data.uuid ] = array;
-
-					} else {
-
-						materials[ data.uuid ] = loader.parse( data );
-
-					}
-
-				}
-
-			}
-
-			return materials;
-
-		},
-
-		parseAnimations: function ( json ) {
-
-			var animations = [];
-
-			for ( var i = 0; i < json.length; i ++ ) {
-
-				var clip = AnimationClip.parse( json[ i ] );
-
-				animations.push( clip );
-
-			}
-
-			return animations;
-
-		},
-
-		parseImages: function ( json, onLoad ) {
-
-			var scope = this;
-			var images = {};
-
-			function loadImage( url ) {
-
-				scope.manager.itemStart( url );
-
-				return loader.load( url, function () {
-
-					scope.manager.itemEnd( url );
-
-				}, undefined, function () {
-
-					scope.manager.itemEnd( url );
-					scope.manager.itemError( url );
-
-				} );
-
-			}
-
-			if ( json !== undefined && json.length > 0 ) {
-
-				var manager = new LoadingManager( onLoad );
-
-				var loader = new ImageLoader( manager );
-				loader.setCrossOrigin( this.crossOrigin );
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var image = json[ i ];
-					var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;
-
-					images[ image.uuid ] = loadImage( path );
-
-				}
-
-			}
-
-			return images;
-
-		},
-
-		parseTextures: function ( json, images ) {
-
-			function parseConstant( value, type ) {
-
-				if ( typeof value === 'number' ) return value;
-
-				console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );
-
-				return type[ value ];
-
-			}
-
-			var textures = {};
-
-			if ( json !== undefined ) {
-
-				for ( var i = 0, l = json.length; i < l; i ++ ) {
-
-					var data = json[ i ];
-
-					if ( data.image === undefined ) {
-
-						console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );
-
-					}
-
-					if ( images[ data.image ] === undefined ) {
-
-						console.warn( 'THREE.ObjectLoader: Undefined image', data.image );
-
-					}
-
-					var texture = new Texture( images[ data.image ] );
-					texture.needsUpdate = true;
-
-					texture.uuid = data.uuid;
-
-					if ( data.name !== undefined ) texture.name = data.name;
-
-					if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );
-
-					if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
-					if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
-					if ( data.center !== undefined ) texture.center.fromArray( data.center );
-					if ( data.rotation !== undefined ) texture.rotation = data.rotation;
-
-					if ( data.wrap !== undefined ) {
-
-						texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
-						texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );
-
-					}
-
-					if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
-					if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
-					if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;
-
-					if ( data.flipY !== undefined ) texture.flipY = data.flipY;
-
-					textures[ data.uuid ] = texture;
-
-				}
-
-			}
-
-			return textures;
-
-		},
-
-		parseObject: function ( data, geometries, materials ) {
-
-			var object;
-
-			function getGeometry( name ) {
-
-				if ( geometries[ name ] === undefined ) {
-
-					console.warn( 'THREE.ObjectLoader: Undefined geometry', name );
-
-				}
-
-				return geometries[ name ];
-
-			}
-
-			function getMaterial( name ) {
-
-				if ( name === undefined ) return undefined;
-
-				if ( Array.isArray( name ) ) {
-
-					var array = [];
-
-					for ( var i = 0, l = name.length; i < l; i ++ ) {
-
-						var uuid = name[ i ];
-
-						if ( materials[ uuid ] === undefined ) {
-
-							console.warn( 'THREE.ObjectLoader: Undefined material', uuid );
-
-						}
-
-						array.push( materials[ uuid ] );
-
-					}
-
-					return array;
-
-				}
-
-				if ( materials[ name ] === undefined ) {
-
-					console.warn( 'THREE.ObjectLoader: Undefined material', name );
-
-				}
-
-				return materials[ name ];
-
-			}
-
-			switch ( data.type ) {
-
-				case 'Scene':
-
-					object = new Scene();
-
-					if ( data.background !== undefined ) {
-
-						if ( Number.isInteger( data.background ) ) {
-
-							object.background = new Color( data.background );
-
-						}
-
-					}
-
-					if ( data.fog !== undefined ) {
-
-						if ( data.fog.type === 'Fog' ) {
-
-							object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );
-
-						} else if ( data.fog.type === 'FogExp2' ) {
-
-							object.fog = new FogExp2( data.fog.color, data.fog.density );
-
-						}
-
-					}
-
-					break;
-
-				case 'PerspectiveCamera':
-
-					object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );
-
-					if ( data.focus !== undefined ) object.focus = data.focus;
-					if ( data.zoom !== undefined ) object.zoom = data.zoom;
-					if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
-					if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
-					if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );
-
-					break;
-
-				case 'OrthographicCamera':
-
-					object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );
-
-					break;
-
-				case 'AmbientLight':
-
-					object = new AmbientLight( data.color, data.intensity );
-
-					break;
-
-				case 'DirectionalLight':
-
-					object = new DirectionalLight( data.color, data.intensity );
-
-					break;
-
-				case 'PointLight':
-
-					object = new PointLight( data.color, data.intensity, data.distance, data.decay );
-
-					break;
-
-				case 'RectAreaLight':
-
-					object = new RectAreaLight( data.color, data.intensity, data.width, data.height );
-
-					break;
-
-				case 'SpotLight':
-
-					object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );
-
-					break;
-
-				case 'HemisphereLight':
-
-					object = new HemisphereLight( data.color, data.groundColor, data.intensity );
-
-					break;
-
-				case 'SkinnedMesh':
-
-					console.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );
-
-				case 'Mesh':
-
-					var geometry = getGeometry( data.geometry );
-					var material = getMaterial( data.material );
-
-					if ( geometry.bones && geometry.bones.length > 0 ) {
-
-						object = new SkinnedMesh( geometry, material );
-
-					} else {
-
-						object = new Mesh( geometry, material );
-
-					}
-
-					break;
-
-				case 'LOD':
-
-					object = new LOD();
-
-					break;
-
-				case 'Line':
-
-					object = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );
-
-					break;
-
-				case 'LineLoop':
-
-					object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );
-
-					break;
-
-				case 'LineSegments':
-
-					object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );
-
-					break;
-
-				case 'PointCloud':
-				case 'Points':
-
-					object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );
-
-					break;
-
-				case 'Sprite':
-
-					object = new Sprite( getMaterial( data.material ) );
-
-					break;
-
-				case 'Group':
-
-					object = new Group();
-
-					break;
-
-				default:
-
-					object = new Object3D();
-
-			}
-
-			object.uuid = data.uuid;
-
-			if ( data.name !== undefined ) object.name = data.name;
-			if ( data.matrix !== undefined ) {
-
-				object.matrix.fromArray( data.matrix );
-				object.matrix.decompose( object.position, object.quaternion, object.scale );
-
-			} else {
-
-				if ( data.position !== undefined ) object.position.fromArray( data.position );
-				if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
-				if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
-				if ( data.scale !== undefined ) object.scale.fromArray( data.scale );
-
-			}
-
-			if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
-			if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;
-
-			if ( data.shadow ) {
-
-				if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
-				if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
-				if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
-				if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );
-
-			}
-
-			if ( data.visible !== undefined ) object.visible = data.visible;
-			if ( data.userData !== undefined ) object.userData = data.userData;
-
-			if ( data.children !== undefined ) {
-
-				var children = data.children;
-
-				for ( var i = 0; i < children.length; i ++ ) {
-
-					object.add( this.parseObject( children[ i ], geometries, materials ) );
-
-				}
-
-			}
-
-			if ( data.type === 'LOD' ) {
-
-				var levels = data.levels;
-
-				for ( var l = 0; l < levels.length; l ++ ) {
-
-					var level = levels[ l ];
-					var child = object.getObjectByProperty( 'uuid', level.object );
-
-					if ( child !== undefined ) {
-
-						object.addLevel( child, level.distance );
-
-					}
-
-				}
-
-			}
-
-			return object;
-
-		}
-
-	} );
-
-	var TEXTURE_MAPPING = {
-		UVMapping: UVMapping,
-		CubeReflectionMapping: CubeReflectionMapping,
-		CubeRefractionMapping: CubeRefractionMapping,
-		EquirectangularReflectionMapping: EquirectangularReflectionMapping,
-		EquirectangularRefractionMapping: EquirectangularRefractionMapping,
-		SphericalReflectionMapping: SphericalReflectionMapping,
-		CubeUVReflectionMapping: CubeUVReflectionMapping,
-		CubeUVRefractionMapping: CubeUVRefractionMapping
-	};
-
-	var TEXTURE_WRAPPING = {
-		RepeatWrapping: RepeatWrapping,
-		ClampToEdgeWrapping: ClampToEdgeWrapping,
-		MirroredRepeatWrapping: MirroredRepeatWrapping
-	};
-
-	var TEXTURE_FILTER = {
-		NearestFilter: NearestFilter,
-		NearestMipMapNearestFilter: NearestMipMapNearestFilter,
-		NearestMipMapLinearFilter: NearestMipMapLinearFilter,
-		LinearFilter: LinearFilter,
-		LinearMipMapNearestFilter: LinearMipMapNearestFilter,
-		LinearMipMapLinearFilter: LinearMipMapLinearFilter
-	};
-
-	/**
-	 * @author thespite / http://clicktorelease.com/
-	 */
-
-	function ImageBitmapLoader( manager ) {
-
-		if ( typeof createImageBitmap === 'undefined' ) {
-
-			console.warn( 'THREE.ImageBitmapLoader: createImageBitmap() not supported.' );
-
-		}
-
-		if ( typeof fetch === 'undefined' ) {
-
-			console.warn( 'THREE.ImageBitmapLoader: fetch() not supported.' );
-
-		}
-
-		this.manager = manager !== undefined ? manager : DefaultLoadingManager;
-		this.options = undefined;
-
-	}
-
-	ImageBitmapLoader.prototype = {
-
-		constructor: ImageBitmapLoader,
-
-		setOptions: function setOptions( options ) {
-
-			this.options = options;
-
-			return this;
-
-		},
-
-		load: function load( url, onLoad, onProgress, onError ) {
-
-			if ( url === undefined ) url = '';
-
-			if ( this.path !== undefined ) url = this.path + url;
-
-			var scope = this;
-
-			var cached = Cache.get( url );
-
-			if ( cached !== undefined ) {
-
-				scope.manager.itemStart( url );
-
-				setTimeout( function () {
-
-					if ( onLoad ) onLoad( cached );
-
-					scope.manager.itemEnd( url );
-
-				}, 0 );
-
-				return cached;
-
-			}
-
-			fetch( url ).then( function ( res ) {
-
-				return res.blob();
-
-			} ).then( function ( blob ) {
-
-				return createImageBitmap( blob, scope.options );
-
-			} ).then( function ( imageBitmap ) {
-
-				Cache.add( url, imageBitmap );
-
-				if ( onLoad ) onLoad( imageBitmap );
-
-				scope.manager.itemEnd( url );
-
-			} ).catch( function ( e ) {
-
-				if ( onError ) onError( e );
-
-				scope.manager.itemEnd( url );
-				scope.manager.itemError( url );
-
-			} );
-
-		},
-
-		setCrossOrigin: function ( /* value */ ) {
-
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	};
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * minimal class for proxing functions to Path. Replaces old "extractSubpaths()"
-	 **/
-
-	function ShapePath() {
-
-		this.type = 'ShapePath';
-
-		this.subPaths = [];
-		this.currentPath = null;
-
-	}
-
-	Object.assign( ShapePath.prototype, {
-
-		moveTo: function ( x, y ) {
-
-			this.currentPath = new Path();
-			this.subPaths.push( this.currentPath );
-			this.currentPath.moveTo( x, y );
-
-		},
-
-		lineTo: function ( x, y ) {
-
-			this.currentPath.lineTo( x, y );
-
-		},
-
-		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {
-
-			this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );
-
-		},
-
-		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {
-
-			this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );
-
-		},
-
-		splineThru: function ( pts ) {
-
-			this.currentPath.splineThru( pts );
-
-		},
-
-		toShapes: function ( isCCW, noHoles ) {
-
-			function toShapesNoHoles( inSubpaths ) {
-
-				var shapes = [];
-
-				for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {
-
-					var tmpPath = inSubpaths[ i ];
-
-					var tmpShape = new Shape();
-					tmpShape.curves = tmpPath.curves;
-
-					shapes.push( tmpShape );
-
-				}
-
-				return shapes;
-
-			}
-
-			function isPointInsidePolygon( inPt, inPolygon ) {
-
-				var polyLen = inPolygon.length;
-
-				// inPt on polygon contour => immediate success    or
-				// toggling of inside/outside at every single! intersection point of an edge
-				//  with the horizontal line through inPt, left of inPt
-				//  not counting lowerY endpoints of edges and whole edges on that line
-				var inside = false;
-				for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {
-
-					var edgeLowPt = inPolygon[ p ];
-					var edgeHighPt = inPolygon[ q ];
-
-					var edgeDx = edgeHighPt.x - edgeLowPt.x;
-					var edgeDy = edgeHighPt.y - edgeLowPt.y;
-
-					if ( Math.abs( edgeDy ) > Number.EPSILON ) {
-
-						// not parallel
-						if ( edgeDy < 0 ) {
-
-							edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;
-							edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;
-
-						}
-						if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;
-
-						if ( inPt.y === edgeLowPt.y ) {
-
-							if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
-							// continue;				// no intersection or edgeLowPt => doesn't count !!!
-
-						} else {
-
-							var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
-							if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
-							if ( perpEdge < 0 ) 				continue;
-							inside = ! inside;		// true intersection left of inPt
-
-						}
-
-					} else {
-
-						// parallel or collinear
-						if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
-						// edge lies on the same horizontal line as inPt
-						if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
-							 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
-						// continue;
-
-					}
-
-				}
-
-				return	inside;
-
-			}
-
-			var isClockWise = ShapeUtils.isClockWise;
-
-			var subPaths = this.subPaths;
-			if ( subPaths.length === 0 ) return [];
-
-			if ( noHoles === true )	return	toShapesNoHoles( subPaths );
-
-
-			var solid, tmpPath, tmpShape, shapes = [];
-
-			if ( subPaths.length === 1 ) {
-
-				tmpPath = subPaths[ 0 ];
-				tmpShape = new Shape();
-				tmpShape.curves = tmpPath.curves;
-				shapes.push( tmpShape );
-				return shapes;
-
-			}
-
-			var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
-			holesFirst = isCCW ? ! holesFirst : holesFirst;
-
-			// console.log("Holes first", holesFirst);
-
-			var betterShapeHoles = [];
-			var newShapes = [];
-			var newShapeHoles = [];
-			var mainIdx = 0;
-			var tmpPoints;
-
-			newShapes[ mainIdx ] = undefined;
-			newShapeHoles[ mainIdx ] = [];
-
-			for ( var i = 0, l = subPaths.length; i < l; i ++ ) {
-
-				tmpPath = subPaths[ i ];
-				tmpPoints = tmpPath.getPoints();
-				solid = isClockWise( tmpPoints );
-				solid = isCCW ? ! solid : solid;
-
-				if ( solid ) {
-
-					if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;
-
-					newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
-					newShapes[ mainIdx ].s.curves = tmpPath.curves;
-
-					if ( holesFirst )	mainIdx ++;
-					newShapeHoles[ mainIdx ] = [];
-
-					//console.log('cw', i);
-
-				} else {
-
-					newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );
-
-					//console.log('ccw', i);
-
-				}
-
-			}
-
-			// only Holes? -> probably all Shapes with wrong orientation
-			if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );
-
-
-			if ( newShapes.length > 1 ) {
-
-				var ambiguous = false;
-				var toChange = [];
-
-				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
-
-					betterShapeHoles[ sIdx ] = [];
-
-				}
-
-				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {
-
-					var sho = newShapeHoles[ sIdx ];
-
-					for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {
-
-						var ho = sho[ hIdx ];
-						var hole_unassigned = true;
-
-						for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {
-
-							if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {
-
-								if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
-								if ( hole_unassigned ) {
-
-									hole_unassigned = false;
-									betterShapeHoles[ s2Idx ].push( ho );
-
-								} else {
-
-									ambiguous = true;
-
-								}
-
-							}
-
-						}
-						if ( hole_unassigned ) {
-
-							betterShapeHoles[ sIdx ].push( ho );
-
-						}
-
-					}
-
-				}
-				// console.log("ambiguous: ", ambiguous);
-				if ( toChange.length > 0 ) {
-
-					// console.log("to change: ", toChange);
-					if ( ! ambiguous )	newShapeHoles = betterShapeHoles;
-
-				}
-
-			}
-
-			var tmpHoles;
-
-			for ( var i = 0, il = newShapes.length; i < il; i ++ ) {
-
-				tmpShape = newShapes[ i ].s;
-				shapes.push( tmpShape );
-				tmpHoles = newShapeHoles[ i ];
-
-				for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {
-
-					tmpShape.holes.push( tmpHoles[ j ].h );
-
-				}
-
-			}
-
-			//console.log("shape", shapes);
-
-			return shapes;
-
-		}
-
-	} );
-
-	/**
-	 * @author zz85 / http://www.lab4games.net/zz85/blog
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Font( data ) {
-
-		this.type = 'Font';
-
-		this.data = data;
-
-	}
-
-	Object.assign( Font.prototype, {
-
-		isFont: true,
-
-		generateShapes: function ( text, size, divisions ) {
-
-			if ( size === undefined ) size = 100;
-			if ( divisions === undefined ) divisions = 4;
-
-			var shapes = [];
-			var paths = createPaths( text, size, divisions, this.data );
-
-			for ( var p = 0, pl = paths.length; p < pl; p ++ ) {
-
-				Array.prototype.push.apply( shapes, paths[ p ].toShapes() );
-
-			}
-
-			return shapes;
-
-		}
-
-	} );
-
-	function createPaths( text, size, divisions, data ) {
-
-		var chars = String( text ).split( '' );
-		var scale = size / data.resolution;
-		var line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;
-
-		var paths = [];
-
-		var offsetX = 0, offsetY = 0;
-
-		for ( var i = 0; i < chars.length; i ++ ) {
-
-			var char = chars[ i ];
-
-			if ( char === '\n' ) {
-
-				offsetX = 0;
-				offsetY -= line_height;
-
-			} else {
-
-				var ret = createPath( char, divisions, scale, offsetX, offsetY, data );
-				offsetX += ret.offsetX;
-				paths.push( ret.path );
-
-			}
-
-		}
-
-		return paths;
-
-	}
-
-	function createPath( char, divisions, scale, offsetX, offsetY, data ) {
-
-		var glyph = data.glyphs[ char ] || data.glyphs[ '?' ];
-
-		if ( ! glyph ) return;
-
-		var path = new ShapePath();
-
-		var x, y, cpx, cpy, cpx1, cpy1, cpx2, cpy2;
-
-		if ( glyph.o ) {
-
-			var outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );
-
-			for ( var i = 0, l = outline.length; i < l; ) {
-
-				var action = outline[ i ++ ];
-
-				switch ( action ) {
-
-					case 'm': // moveTo
-
-						x = outline[ i ++ ] * scale + offsetX;
-						y = outline[ i ++ ] * scale + offsetY;
-
-						path.moveTo( x, y );
-
-						break;
-
-					case 'l': // lineTo
-
-						x = outline[ i ++ ] * scale + offsetX;
-						y = outline[ i ++ ] * scale + offsetY;
-
-						path.lineTo( x, y );
-
-						break;
-
-					case 'q': // quadraticCurveTo
-
-						cpx = outline[ i ++ ] * scale + offsetX;
-						cpy = outline[ i ++ ] * scale + offsetY;
-						cpx1 = outline[ i ++ ] * scale + offsetX;
-						cpy1 = outline[ i ++ ] * scale + offsetY;
-
-						path.quadraticCurveTo( cpx1, cpy1, cpx, cpy );
-
-						break;
-
-					case 'b': // bezierCurveTo
-
-						cpx = outline[ i ++ ] * scale + offsetX;
-						cpy = outline[ i ++ ] * scale + offsetY;
-						cpx1 = outline[ i ++ ] * scale + offsetX;
-						cpy1 = outline[ i ++ ] * scale + offsetY;
-						cpx2 = outline[ i ++ ] * scale + offsetX;
-						cpy2 = outline[ i ++ ] * scale + offsetY;
-
-						path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );
-
-						break;
-
-				}
-
-			}
-
-		}
-
-		return { offsetX: glyph.ha * scale, path: path };
-
-	}
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function FontLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( FontLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new FileLoader( this.manager );
-			loader.setPath( this.path );
-			loader.load( url, function ( text ) {
-
-				var json;
-
-				try {
-
-					json = JSON.parse( text );
-
-				} catch ( e ) {
-
-					console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );
-					json = JSON.parse( text.substring( 65, text.length - 2 ) );
-
-				}
-
-				var font = scope.parse( json );
-
-				if ( onLoad ) onLoad( font );
-
-			}, onProgress, onError );
-
-		},
-
-		parse: function ( json ) {
-
-			return new Font( json );
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	var context;
-
-	var AudioContext = {
-
-		getContext: function () {
-
-			if ( context === undefined ) {
-
-				context = new ( window.AudioContext || window.webkitAudioContext )();
-
-			}
-
-			return context;
-
-		},
-
-		setContext: function ( value ) {
-
-			context = value;
-
-		}
-
-	};
-
-	/**
-	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
-	 */
-
-	function AudioLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
-
-	}
-
-	Object.assign( AudioLoader.prototype, {
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var loader = new FileLoader( this.manager );
-			loader.setResponseType( 'arraybuffer' );
-			loader.load( url, function ( buffer ) {
-
-				var context = AudioContext.getContext();
-
-				context.decodeAudioData( buffer, function ( audioBuffer ) {
-
-					onLoad( audioBuffer );
-
-				} );
-
-			}, onProgress, onError );
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function StereoCamera() {
-
-		this.type = 'StereoCamera';
-
-		this.aspect = 1;
-
-		this.eyeSep = 0.064;
-
-		this.cameraL = new PerspectiveCamera();
-		this.cameraL.layers.enable( 1 );
-		this.cameraL.matrixAutoUpdate = false;
-
-		this.cameraR = new PerspectiveCamera();
-		this.cameraR.layers.enable( 2 );
-		this.cameraR.matrixAutoUpdate = false;
-
-	}
-
-	Object.assign( StereoCamera.prototype, {
-
-		update: ( function () {
-
-			var instance, focus, fov, aspect, near, far, zoom, eyeSep;
-
-			var eyeRight = new Matrix4();
-			var eyeLeft = new Matrix4();
-
-			return function update( camera ) {
-
-				var needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||
-													aspect !== camera.aspect * this.aspect || near !== camera.near ||
-													far !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;
-
-				if ( needsUpdate ) {
-
-					instance = this;
-					focus = camera.focus;
-					fov = camera.fov;
-					aspect = camera.aspect * this.aspect;
-					near = camera.near;
-					far = camera.far;
-					zoom = camera.zoom;
-
-					// Off-axis stereoscopic effect based on
-					// http://paulbourke.net/stereographics/stereorender/
-
-					var projectionMatrix = camera.projectionMatrix.clone();
-					eyeSep = this.eyeSep / 2;
-					var eyeSepOnProjection = eyeSep * near / focus;
-					var ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;
-					var xmin, xmax;
-
-					// translate xOffset
-
-					eyeLeft.elements[ 12 ] = - eyeSep;
-					eyeRight.elements[ 12 ] = eyeSep;
-
-					// for left eye
-
-					xmin = - ymax * aspect + eyeSepOnProjection;
-					xmax = ymax * aspect + eyeSepOnProjection;
-
-					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
-					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
-
-					this.cameraL.projectionMatrix.copy( projectionMatrix );
-
-					// for right eye
-
-					xmin = - ymax * aspect - eyeSepOnProjection;
-					xmax = ymax * aspect - eyeSepOnProjection;
-
-					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
-					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );
-
-					this.cameraR.projectionMatrix.copy( projectionMatrix );
-
-				}
-
-				this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );
-				this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );
-
-			};
-
-		} )()
-
-	} );
-
-	/**
-	 * Camera for rendering cube maps
-	 *	- renders scene into axis-aligned cube
-	 *
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function CubeCamera( near, far, cubeResolution ) {
-
-		Object3D.call( this );
-
-		this.type = 'CubeCamera';
-
-		var fov = 90, aspect = 1;
-
-		var cameraPX = new PerspectiveCamera( fov, aspect, near, far );
-		cameraPX.up.set( 0, - 1, 0 );
-		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
-		this.add( cameraPX );
-
-		var cameraNX = new PerspectiveCamera( fov, aspect, near, far );
-		cameraNX.up.set( 0, - 1, 0 );
-		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
-		this.add( cameraNX );
-
-		var cameraPY = new PerspectiveCamera( fov, aspect, near, far );
-		cameraPY.up.set( 0, 0, 1 );
-		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
-		this.add( cameraPY );
-
-		var cameraNY = new PerspectiveCamera( fov, aspect, near, far );
-		cameraNY.up.set( 0, 0, - 1 );
-		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
-		this.add( cameraNY );
-
-		var cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
-		cameraPZ.up.set( 0, - 1, 0 );
-		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
-		this.add( cameraPZ );
-
-		var cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
-		cameraNZ.up.set( 0, - 1, 0 );
-		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
-		this.add( cameraNZ );
-
-		var options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };
-
-		this.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );
-		this.renderTarget.texture.name = "CubeCamera";
-
-		this.update = function ( renderer, scene ) {
-
-			if ( this.parent === null ) this.updateMatrixWorld();
-
-			var renderTarget = this.renderTarget;
-			var generateMipmaps = renderTarget.texture.generateMipmaps;
-
-			renderTarget.texture.generateMipmaps = false;
-
-			renderTarget.activeCubeFace = 0;
-			renderer.render( scene, cameraPX, renderTarget );
-
-			renderTarget.activeCubeFace = 1;
-			renderer.render( scene, cameraNX, renderTarget );
-
-			renderTarget.activeCubeFace = 2;
-			renderer.render( scene, cameraPY, renderTarget );
-
-			renderTarget.activeCubeFace = 3;
-			renderer.render( scene, cameraNY, renderTarget );
-
-			renderTarget.activeCubeFace = 4;
-			renderer.render( scene, cameraPZ, renderTarget );
-
-			renderTarget.texture.generateMipmaps = generateMipmaps;
-
-			renderTarget.activeCubeFace = 5;
-			renderer.render( scene, cameraNZ, renderTarget );
-
-			renderer.setRenderTarget( null );
-
-		};
-
-		this.clear = function ( renderer, color, depth, stencil ) {
-
-			var renderTarget = this.renderTarget;
-
-			for ( var i = 0; i < 6; i ++ ) {
-
-				renderTarget.activeCubeFace = i;
-				renderer.setRenderTarget( renderTarget );
-
-				renderer.clear( color, depth, stencil );
-
-			}
-
-			renderer.setRenderTarget( null );
-
-		};
-
-	}
-
-	CubeCamera.prototype = Object.create( Object3D.prototype );
-	CubeCamera.prototype.constructor = CubeCamera;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AudioListener() {
-
-		Object3D.call( this );
-
-		this.type = 'AudioListener';
-
-		this.context = AudioContext.getContext();
-
-		this.gain = this.context.createGain();
-		this.gain.connect( this.context.destination );
-
-		this.filter = null;
-
-	}
-
-	AudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: AudioListener,
-
-		getInput: function () {
-
-			return this.gain;
-
-		},
-
-		removeFilter: function ( ) {
-
-			if ( this.filter !== null ) {
-
-				this.gain.disconnect( this.filter );
-				this.filter.disconnect( this.context.destination );
-				this.gain.connect( this.context.destination );
-				this.filter = null;
-
-			}
-
-		},
-
-		getFilter: function () {
-
-			return this.filter;
-
-		},
-
-		setFilter: function ( value ) {
-
-			if ( this.filter !== null ) {
-
-				this.gain.disconnect( this.filter );
-				this.filter.disconnect( this.context.destination );
-
-			} else {
-
-				this.gain.disconnect( this.context.destination );
-
-			}
-
-			this.filter = value;
-			this.gain.connect( this.filter );
-			this.filter.connect( this.context.destination );
-
-		},
-
-		getMasterVolume: function () {
-
-			return this.gain.gain.value;
-
-		},
-
-		setMasterVolume: function ( value ) {
-
-			this.gain.gain.value = value;
-
-		},
-
-		updateMatrixWorld: ( function () {
-
-			var position = new Vector3();
-			var quaternion = new Quaternion();
-			var scale = new Vector3();
-
-			var orientation = new Vector3();
-
-			return function updateMatrixWorld( force ) {
-
-				Object3D.prototype.updateMatrixWorld.call( this, force );
-
-				var listener = this.context.listener;
-				var up = this.up;
-
-				this.matrixWorld.decompose( position, quaternion, scale );
-
-				orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );
-
-				if ( listener.positionX ) {
-
-					listener.positionX.setValueAtTime( position.x, this.context.currentTime );
-					listener.positionY.setValueAtTime( position.y, this.context.currentTime );
-					listener.positionZ.setValueAtTime( position.z, this.context.currentTime );
-					listener.forwardX.setValueAtTime( orientation.x, this.context.currentTime );
-					listener.forwardY.setValueAtTime( orientation.y, this.context.currentTime );
-					listener.forwardZ.setValueAtTime( orientation.z, this.context.currentTime );
-					listener.upX.setValueAtTime( up.x, this.context.currentTime );
-					listener.upY.setValueAtTime( up.y, this.context.currentTime );
-					listener.upZ.setValueAtTime( up.z, this.context.currentTime );
-
-				} else {
-
-					listener.setPosition( position.x, position.y, position.z );
-					listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );
-
-				}
-
-			};
-
-		} )()
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
-	 */
-
-	function Audio( listener ) {
-
-		Object3D.call( this );
-
-		this.type = 'Audio';
-
-		this.context = listener.context;
-
-		this.gain = this.context.createGain();
-		this.gain.connect( listener.getInput() );
-
-		this.autoplay = false;
-
-		this.buffer = null;
-		this.loop = false;
-		this.startTime = 0;
-		this.offset = 0;
-		this.playbackRate = 1;
-		this.isPlaying = false;
-		this.hasPlaybackControl = true;
-		this.sourceType = 'empty';
-
-		this.filters = [];
-
-	}
-
-	Audio.prototype = Object.assign( Object.create( Object3D.prototype ), {
-
-		constructor: Audio,
-
-		getOutput: function () {
-
-			return this.gain;
-
-		},
-
-		setNodeSource: function ( audioNode ) {
-
-			this.hasPlaybackControl = false;
-			this.sourceType = 'audioNode';
-			this.source = audioNode;
-			this.connect();
-
-			return this;
-
-		},
-
-		setBuffer: function ( audioBuffer ) {
-
-			this.buffer = audioBuffer;
-			this.sourceType = 'buffer';
-
-			if ( this.autoplay ) this.play();
-
-			return this;
-
-		},
-
-		play: function () {
-
-			if ( this.isPlaying === true ) {
-
-				console.warn( 'THREE.Audio: Audio is already playing.' );
-				return;
-
-			}
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			var source = this.context.createBufferSource();
-
-			source.buffer = this.buffer;
-			source.loop = this.loop;
-			source.onended = this.onEnded.bind( this );
-			source.playbackRate.setValueAtTime( this.playbackRate, this.startTime );
-			this.startTime = this.context.currentTime;
-			source.start( this.startTime, this.offset );
-
-			this.isPlaying = true;
-
-			this.source = source;
-
-			return this.connect();
-
-		},
-
-		pause: function () {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			if ( this.isPlaying === true ) {
-
-				this.source.stop();
-				this.offset += ( this.context.currentTime - this.startTime ) * this.playbackRate;
-				this.isPlaying = false;
-
-			}
-
-			return this;
-
-		},
-
-		stop: function () {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			this.source.stop();
-			this.offset = 0;
-			this.isPlaying = false;
-
-			return this;
-
-		},
-
-		connect: function () {
-
-			if ( this.filters.length > 0 ) {
-
-				this.source.connect( this.filters[ 0 ] );
-
-				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
-
-					this.filters[ i - 1 ].connect( this.filters[ i ] );
-
-				}
-
-				this.filters[ this.filters.length - 1 ].connect( this.getOutput() );
-
-			} else {
-
-				this.source.connect( this.getOutput() );
-
-			}
-
-			return this;
-
-		},
-
-		disconnect: function () {
-
-			if ( this.filters.length > 0 ) {
-
-				this.source.disconnect( this.filters[ 0 ] );
-
-				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {
-
-					this.filters[ i - 1 ].disconnect( this.filters[ i ] );
-
-				}
-
-				this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );
-
-			} else {
-
-				this.source.disconnect( this.getOutput() );
-
-			}
-
-			return this;
-
-		},
-
-		getFilters: function () {
-
-			return this.filters;
-
-		},
-
-		setFilters: function ( value ) {
-
-			if ( ! value ) value = [];
-
-			if ( this.isPlaying === true ) {
-
-				this.disconnect();
-				this.filters = value;
-				this.connect();
-
-			} else {
-
-				this.filters = value;
-
-			}
-
-			return this;
-
-		},
-
-		getFilter: function () {
-
-			return this.getFilters()[ 0 ];
-
-		},
-
-		setFilter: function ( filter ) {
-
-			return this.setFilters( filter ? [ filter ] : [] );
-
-		},
-
-		setPlaybackRate: function ( value ) {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			this.playbackRate = value;
-
-			if ( this.isPlaying === true ) {
-
-				this.source.playbackRate.setValueAtTime( this.playbackRate, this.context.currentTime );
-
-			}
-
-			return this;
-
-		},
-
-		getPlaybackRate: function () {
-
-			return this.playbackRate;
-
-		},
-
-		onEnded: function () {
-
-			this.isPlaying = false;
-
-		},
-
-		getLoop: function () {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return false;
-
-			}
-
-			return this.loop;
-
-		},
-
-		setLoop: function ( value ) {
-
-			if ( this.hasPlaybackControl === false ) {
-
-				console.warn( 'THREE.Audio: this Audio has no playback control.' );
-				return;
-
-			}
-
-			this.loop = value;
-
-			if ( this.isPlaying === true ) {
-
-				this.source.loop = this.loop;
-
-			}
-
-			return this;
-
-		},
-
-		getVolume: function () {
-
-			return this.gain.gain.value;
-
-		},
-
-		setVolume: function ( value ) {
-
-			this.gain.gain.value = value;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function PositionalAudio( listener ) {
-
-		Audio.call( this, listener );
-
-		this.panner = this.context.createPanner();
-		this.panner.connect( this.gain );
-
-	}
-
-	PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {
-
-		constructor: PositionalAudio,
-
-		getOutput: function () {
-
-			return this.panner;
-
-		},
-
-		getRefDistance: function () {
-
-			return this.panner.refDistance;
-
-		},
-
-		setRefDistance: function ( value ) {
-
-			this.panner.refDistance = value;
-
-		},
-
-		getRolloffFactor: function () {
-
-			return this.panner.rolloffFactor;
-
-		},
-
-		setRolloffFactor: function ( value ) {
-
-			this.panner.rolloffFactor = value;
-
-		},
-
-		getDistanceModel: function () {
-
-			return this.panner.distanceModel;
-
-		},
-
-		setDistanceModel: function ( value ) {
-
-			this.panner.distanceModel = value;
-
-		},
-
-		getMaxDistance: function () {
-
-			return this.panner.maxDistance;
-
-		},
-
-		setMaxDistance: function ( value ) {
-
-			this.panner.maxDistance = value;
-
-		},
-
-		updateMatrixWorld: ( function () {
-
-			var position = new Vector3();
-
-			return function updateMatrixWorld( force ) {
-
-				Object3D.prototype.updateMatrixWorld.call( this, force );
-
-				position.setFromMatrixPosition( this.matrixWorld );
-
-				this.panner.setPosition( position.x, position.y, position.z );
-
-			};
-
-		} )()
-
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AudioAnalyser( audio, fftSize ) {
-
-		this.analyser = audio.context.createAnalyser();
-		this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;
-
-		this.data = new Uint8Array( this.analyser.frequencyBinCount );
-
-		audio.getOutput().connect( this.analyser );
-
-	}
-
-	Object.assign( AudioAnalyser.prototype, {
-
-		getFrequencyData: function () {
-
-			this.analyser.getByteFrequencyData( this.data );
-
-			return this.data;
-
-		},
-
-		getAverageFrequency: function () {
-
-			var value = 0, data = this.getFrequencyData();
-
-			for ( var i = 0; i < data.length; i ++ ) {
-
-				value += data[ i ];
-
-			}
-
-			return value / data.length;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Buffered scene graph property that allows weighted accumulation.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function PropertyMixer( binding, typeName, valueSize ) {
-
-		this.binding = binding;
-		this.valueSize = valueSize;
-
-		var bufferType = Float64Array,
-			mixFunction;
-
-		switch ( typeName ) {
-
-			case 'quaternion':
-				mixFunction = this._slerp;
-				break;
-
-			case 'string':
-			case 'bool':
-				bufferType = Array;
-				mixFunction = this._select;
-				break;
-
-			default:
-				mixFunction = this._lerp;
-
-		}
-
-		this.buffer = new bufferType( valueSize * 4 );
-		// layout: [ incoming | accu0 | accu1 | orig ]
-		//
-		// interpolators can use .buffer as their .result
-		// the data then goes to 'incoming'
-		//
-		// 'accu0' and 'accu1' are used frame-interleaved for
-		// the cumulative result and are compared to detect
-		// changes
-		//
-		// 'orig' stores the original state of the property
-
-		this._mixBufferRegion = mixFunction;
-
-		this.cumulativeWeight = 0;
-
-		this.useCount = 0;
-		this.referenceCount = 0;
-
-	}
-
-	Object.assign( PropertyMixer.prototype, {
-
-		// accumulate data in the 'incoming' region into 'accu<i>'
-		accumulate: function ( accuIndex, weight ) {
-
-			// note: happily accumulating nothing when weight = 0, the caller knows
-			// the weight and shouldn't have made the call in the first place
-
-			var buffer = this.buffer,
-				stride = this.valueSize,
-				offset = accuIndex * stride + stride,
-
-				currentWeight = this.cumulativeWeight;
-
-			if ( currentWeight === 0 ) {
-
-				// accuN := incoming * weight
-
-				for ( var i = 0; i !== stride; ++ i ) {
-
-					buffer[ offset + i ] = buffer[ i ];
-
-				}
-
-				currentWeight = weight;
-
-			} else {
-
-				// accuN := accuN + incoming * weight
-
-				currentWeight += weight;
-				var mix = weight / currentWeight;
-				this._mixBufferRegion( buffer, offset, 0, mix, stride );
-
-			}
-
-			this.cumulativeWeight = currentWeight;
-
-		},
-
-		// apply the state of 'accu<i>' to the binding when accus differ
-		apply: function ( accuIndex ) {
-
-			var stride = this.valueSize,
-				buffer = this.buffer,
-				offset = accuIndex * stride + stride,
-
-				weight = this.cumulativeWeight,
-
-				binding = this.binding;
-
-			this.cumulativeWeight = 0;
-
-			if ( weight < 1 ) {
-
-				// accuN := accuN + original * ( 1 - cumulativeWeight )
-
-				var originalValueOffset = stride * 3;
-
-				this._mixBufferRegion(
-					buffer, offset, originalValueOffset, 1 - weight, stride );
-
-			}
-
-			for ( var i = stride, e = stride + stride; i !== e; ++ i ) {
-
-				if ( buffer[ i ] !== buffer[ i + stride ] ) {
-
-					// value has changed -> update scene graph
-
-					binding.setValue( buffer, offset );
-					break;
-
-				}
-
-			}
-
-		},
-
-		// remember the state of the bound property and copy it to both accus
-		saveOriginalState: function () {
-
-			var binding = this.binding;
-
-			var buffer = this.buffer,
-				stride = this.valueSize,
-
-				originalValueOffset = stride * 3;
-
-			binding.getValue( buffer, originalValueOffset );
-
-			// accu[0..1] := orig -- initially detect changes against the original
-			for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {
-
-				buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];
-
-			}
-
-			this.cumulativeWeight = 0;
-
-		},
-
-		// apply the state previously taken via 'saveOriginalState' to the binding
-		restoreOriginalState: function () {
-
-			var originalValueOffset = this.valueSize * 3;
-			this.binding.setValue( this.buffer, originalValueOffset );
-
-		},
-
-
-		// mix functions
-
-		_select: function ( buffer, dstOffset, srcOffset, t, stride ) {
-
-			if ( t >= 0.5 ) {
-
-				for ( var i = 0; i !== stride; ++ i ) {
-
-					buffer[ dstOffset + i ] = buffer[ srcOffset + i ];
-
-				}
-
-			}
-
-		},
-
-		_slerp: function ( buffer, dstOffset, srcOffset, t ) {
-
-			Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );
-
-		},
-
-		_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {
-
-			var s = 1 - t;
-
-			for ( var i = 0; i !== stride; ++ i ) {
-
-				var j = dstOffset + i;
-
-				buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * A reference to a real property in the scene graph.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	// Characters [].:/ are reserved for track binding syntax.
-	var RESERVED_CHARS_RE = '\\[\\]\\.:\\/';
-
-	function Composite( targetGroup, path, optionalParsedPath ) {
-
-		var parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );
-
-		this._targetGroup = targetGroup;
-		this._bindings = targetGroup.subscribe_( path, parsedPath );
-
-	}
-
-	Object.assign( Composite.prototype, {
-
-		getValue: function ( array, offset ) {
-
-			this.bind(); // bind all binding
-
-			var firstValidIndex = this._targetGroup.nCachedObjects_,
-				binding = this._bindings[ firstValidIndex ];
-
-			// and only call .getValue on the first
-			if ( binding !== undefined ) binding.getValue( array, offset );
-
-		},
-
-		setValue: function ( array, offset ) {
-
-			var bindings = this._bindings;
-
-			for ( var i = this._targetGroup.nCachedObjects_,
-					  n = bindings.length; i !== n; ++ i ) {
-
-				bindings[ i ].setValue( array, offset );
-
-			}
-
-		},
-
-		bind: function () {
-
-			var bindings = this._bindings;
-
-			for ( var i = this._targetGroup.nCachedObjects_,
-					  n = bindings.length; i !== n; ++ i ) {
-
-				bindings[ i ].bind();
-
-			}
-
-		},
-
-		unbind: function () {
-
-			var bindings = this._bindings;
-
-			for ( var i = this._targetGroup.nCachedObjects_,
-					  n = bindings.length; i !== n; ++ i ) {
-
-				bindings[ i ].unbind();
-
-			}
-
-		}
-
-	} );
-
-
-	function PropertyBinding( rootNode, path, parsedPath ) {
-
-		this.path = path;
-		this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );
-
-		this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;
-
-		this.rootNode = rootNode;
-
-	}
-
-	Object.assign( PropertyBinding, {
-
-		Composite: Composite,
-
-		create: function ( root, path, parsedPath ) {
-
-			if ( ! ( root && root.isAnimationObjectGroup ) ) {
-
-				return new PropertyBinding( root, path, parsedPath );
-
-			} else {
-
-				return new PropertyBinding.Composite( root, path, parsedPath );
-
-			}
-
-		},
-
-		/**
-		 * Replaces spaces with underscores and removes unsupported characters from
-		 * node names, to ensure compatibility with parseTrackName().
-		 *
-		 * @param  {string} name Node name to be sanitized.
-		 * @return {string}
-		 */
-		sanitizeNodeName: ( function () {
-
-			var reservedRe = new RegExp( '[' + RESERVED_CHARS_RE + ']', 'g' );
-
-			return function sanitizeNodeName( name ) {
-
-				return name.replace( /\s/g, '_' ).replace( reservedRe, '' );
-
-			};
-
-		}() ),
-
-		parseTrackName: function () {
-
-			// Attempts to allow node names from any language. ES5's `\w` regexp matches
-			// only latin characters, and the unicode \p{L} is not yet supported. So
-			// instead, we exclude reserved characters and match everything else.
-			var wordChar = '[^' + RESERVED_CHARS_RE + ']';
-			var wordCharOrDot = '[^' + RESERVED_CHARS_RE.replace( '\\.', '' ) + ']';
-
-			// Parent directories, delimited by '/' or ':'. Currently unused, but must
-			// be matched to parse the rest of the track name.
-			var directoryRe = /((?:WC+[\/:])*)/.source.replace( 'WC', wordChar );
-
-			// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
-			var nodeRe = /(WCOD+)?/.source.replace( 'WCOD', wordCharOrDot );
-
-			// Object on target node, and accessor. May not contain reserved
-			// characters. Accessor may contain any character except closing bracket.
-			var objectRe = /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace( 'WC', wordChar );
-
-			// Property and accessor. May not contain reserved characters. Accessor may
-			// contain any non-bracket characters.
-			var propertyRe = /\.(WC+)(?:\[(.+)\])?/.source.replace( 'WC', wordChar );
-
-			var trackRe = new RegExp( ''
-				+ '^'
-				+ directoryRe
-				+ nodeRe
-				+ objectRe
-				+ propertyRe
-				+ '$'
-			);
-
-			var supportedObjectNames = [ 'material', 'materials', 'bones' ];
-
-			return function parseTrackName( trackName ) {
-
-				var matches = trackRe.exec( trackName );
-
-				if ( ! matches ) {
-
-					throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );
-
-				}
-
-				var results = {
-					// directoryName: matches[ 1 ], // (tschw) currently unused
-					nodeName: matches[ 2 ],
-					objectName: matches[ 3 ],
-					objectIndex: matches[ 4 ],
-					propertyName: matches[ 5 ], // required
-					propertyIndex: matches[ 6 ]
-				};
-
-				var lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );
-
-				if ( lastDot !== undefined && lastDot !== - 1 ) {
-
-					var objectName = results.nodeName.substring( lastDot + 1 );
-
-					// Object names must be checked against a whitelist. Otherwise, there
-					// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
-					// 'bar' could be the objectName, or part of a nodeName (which can
-					// include '.' characters).
-					if ( supportedObjectNames.indexOf( objectName ) !== - 1 ) {
-
-						results.nodeName = results.nodeName.substring( 0, lastDot );
-						results.objectName = objectName;
-
-					}
-
-				}
-
-				if ( results.propertyName === null || results.propertyName.length === 0 ) {
-
-					throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );
-
-				}
-
-				return results;
-
-			};
-
-		}(),
-
-		findNode: function ( root, nodeName ) {
-
-			if ( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {
-
-				return root;
-
-			}
-
-			// search into skeleton bones.
-			if ( root.skeleton ) {
-
-				var bone = root.skeleton.getBoneByName( nodeName );
-
-				if ( bone !== undefined ) {
-
-					return bone;
-
-				}
-
-			}
-
-			// search into node subtree.
-			if ( root.children ) {
-
-				var searchNodeSubtree = function ( children ) {
-
-					for ( var i = 0; i < children.length; i ++ ) {
-
-						var childNode = children[ i ];
-
-						if ( childNode.name === nodeName || childNode.uuid === nodeName ) {
-
-							return childNode;
-
-						}
-
-						var result = searchNodeSubtree( childNode.children );
-
-						if ( result ) return result;
-
-					}
-
-					return null;
-
-				};
-
-				var subTreeNode = searchNodeSubtree( root.children );
-
-				if ( subTreeNode ) {
-
-					return subTreeNode;
-
-				}
-
-			}
-
-			return null;
-
-		}
-
-	} );
-
-	Object.assign( PropertyBinding.prototype, { // prototype, continued
-
-		// these are used to "bind" a nonexistent property
-		_getValue_unavailable: function () {},
-		_setValue_unavailable: function () {},
-
-		BindingType: {
-			Direct: 0,
-			EntireArray: 1,
-			ArrayElement: 2,
-			HasFromToArray: 3
-		},
-
-		Versioning: {
-			None: 0,
-			NeedsUpdate: 1,
-			MatrixWorldNeedsUpdate: 2
-		},
-
-		GetterByBindingType: [
-
-			function getValue_direct( buffer, offset ) {
-
-				buffer[ offset ] = this.node[ this.propertyName ];
-
-			},
-
-			function getValue_array( buffer, offset ) {
-
-				var source = this.resolvedProperty;
-
-				for ( var i = 0, n = source.length; i !== n; ++ i ) {
-
-					buffer[ offset ++ ] = source[ i ];
-
-				}
-
-			},
-
-			function getValue_arrayElement( buffer, offset ) {
-
-				buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];
-
-			},
-
-			function getValue_toArray( buffer, offset ) {
-
-				this.resolvedProperty.toArray( buffer, offset );
-
-			}
-
-		],
-
-		SetterByBindingTypeAndVersioning: [
-
-			[
-				// Direct
-
-				function setValue_direct( buffer, offset ) {
-
-					this.targetObject[ this.propertyName ] = buffer[ offset ];
-
-				},
-
-				function setValue_direct_setNeedsUpdate( buffer, offset ) {
-
-					this.targetObject[ this.propertyName ] = buffer[ offset ];
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					this.targetObject[ this.propertyName ] = buffer[ offset ];
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			], [
-
-				// EntireArray
-
-				function setValue_array( buffer, offset ) {
-
-					var dest = this.resolvedProperty;
-
-					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
-
-						dest[ i ] = buffer[ offset ++ ];
-
-					}
-
-				},
-
-				function setValue_array_setNeedsUpdate( buffer, offset ) {
-
-					var dest = this.resolvedProperty;
-
-					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
-
-						dest[ i ] = buffer[ offset ++ ];
-
-					}
-
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					var dest = this.resolvedProperty;
-
-					for ( var i = 0, n = dest.length; i !== n; ++ i ) {
-
-						dest[ i ] = buffer[ offset ++ ];
-
-					}
-
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			], [
-
-				// ArrayElement
-
-				function setValue_arrayElement( buffer, offset ) {
-
-					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
-
-				},
-
-				function setValue_arrayElement_setNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			], [
-
-				// HasToFromArray
-
-				function setValue_fromArray( buffer, offset ) {
-
-					this.resolvedProperty.fromArray( buffer, offset );
-
-				},
-
-				function setValue_fromArray_setNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty.fromArray( buffer, offset );
-					this.targetObject.needsUpdate = true;
-
-				},
-
-				function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {
-
-					this.resolvedProperty.fromArray( buffer, offset );
-					this.targetObject.matrixWorldNeedsUpdate = true;
-
-				}
-
-			]
-
-		],
-
-		getValue: function getValue_unbound( targetArray, offset ) {
-
-			this.bind();
-			this.getValue( targetArray, offset );
-
-			// Note: This class uses a State pattern on a per-method basis:
-			// 'bind' sets 'this.getValue' / 'setValue' and shadows the
-			// prototype version of these methods with one that represents
-			// the bound state. When the property is not found, the methods
-			// become no-ops.
-
-		},
-
-		setValue: function getValue_unbound( sourceArray, offset ) {
-
-			this.bind();
-			this.setValue( sourceArray, offset );
-
-		},
-
-		// create getter / setter pair for a property in the scene graph
-		bind: function () {
-
-			var targetObject = this.node,
-				parsedPath = this.parsedPath,
-
-				objectName = parsedPath.objectName,
-				propertyName = parsedPath.propertyName,
-				propertyIndex = parsedPath.propertyIndex;
-
-			if ( ! targetObject ) {
-
-				targetObject = PropertyBinding.findNode( this.rootNode, parsedPath.nodeName ) || this.rootNode;
-
-				this.node = targetObject;
-
-			}
-
-			// set fail state so we can just 'return' on error
-			this.getValue = this._getValue_unavailable;
-			this.setValue = this._setValue_unavailable;
-
-			// ensure there is a value node
-			if ( ! targetObject ) {
-
-				console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
-				return;
-
-			}
-
-			if ( objectName ) {
-
-				var objectIndex = parsedPath.objectIndex;
-
-				// special cases were we need to reach deeper into the hierarchy to get the face materials....
-				switch ( objectName ) {
-
-					case 'materials':
-
-						if ( ! targetObject.material ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
-							return;
-
-						}
-
-						if ( ! targetObject.material.materials ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
-							return;
-
-						}
-
-						targetObject = targetObject.material.materials;
-
-						break;
-
-					case 'bones':
-
-						if ( ! targetObject.skeleton ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
-							return;
-
-						}
-
-						// potential future optimization: skip this if propertyIndex is already an integer
-						// and convert the integer string to a true integer.
-
-						targetObject = targetObject.skeleton.bones;
-
-						// support resolving morphTarget names into indices.
-						for ( var i = 0; i < targetObject.length; i ++ ) {
-
-							if ( targetObject[ i ].name === objectIndex ) {
-
-								objectIndex = i;
-								break;
-
-							}
-
-						}
-
-						break;
-
-					default:
-
-						if ( targetObject[ objectName ] === undefined ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
-							return;
-
-						}
-
-						targetObject = targetObject[ objectName ];
-
-				}
-
-
-				if ( objectIndex !== undefined ) {
-
-					if ( targetObject[ objectIndex ] === undefined ) {
-
-						console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
-						return;
-
-					}
-
-					targetObject = targetObject[ objectIndex ];
-
-				}
-
-			}
-
-			// resolve property
-			var nodeProperty = targetObject[ propertyName ];
-
-			if ( nodeProperty === undefined ) {
-
-				var nodeName = parsedPath.nodeName;
-
-				console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
-					'.' + propertyName + ' but it wasn\'t found.', targetObject );
-				return;
-
-			}
-
-			// determine versioning scheme
-			var versioning = this.Versioning.None;
-
-			if ( targetObject.needsUpdate !== undefined ) { // material
-
-				versioning = this.Versioning.NeedsUpdate;
-				this.targetObject = targetObject;
-
-			} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform
-
-				versioning = this.Versioning.MatrixWorldNeedsUpdate;
-				this.targetObject = targetObject;
-
-			}
-
-			// determine how the property gets bound
-			var bindingType = this.BindingType.Direct;
-
-			if ( propertyIndex !== undefined ) {
-
-				// access a sub element of the property array (only primitives are supported right now)
-
-				if ( propertyName === "morphTargetInfluences" ) {
-
-					// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
-
-					// support resolving morphTarget names into indices.
-					if ( ! targetObject.geometry ) {
-
-						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
-						return;
-
-					}
-
-					if ( targetObject.geometry.isBufferGeometry ) {
-
-						if ( ! targetObject.geometry.morphAttributes ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
-							return;
-
-						}
-
-						for ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {
-
-							if ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {
-
-								propertyIndex = i;
-								break;
-
-							}
-
-						}
-
-
-					} else {
-
-						if ( ! targetObject.geometry.morphTargets ) {
-
-							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );
-							return;
-
-						}
-
-						for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {
-
-							if ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {
-
-								propertyIndex = i;
-								break;
-
-							}
-
-						}
-
-					}
-
-				}
-
-				bindingType = this.BindingType.ArrayElement;
-
-				this.resolvedProperty = nodeProperty;
-				this.propertyIndex = propertyIndex;
-
-			} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {
-
-				// must use copy for Object3D.Euler/Quaternion
-
-				bindingType = this.BindingType.HasFromToArray;
-
-				this.resolvedProperty = nodeProperty;
-
-			} else if ( Array.isArray( nodeProperty ) ) {
-
-				bindingType = this.BindingType.EntireArray;
-
-				this.resolvedProperty = nodeProperty;
-
-			} else {
-
-				this.propertyName = propertyName;
-
-			}
-
-			// select getter / setter
-			this.getValue = this.GetterByBindingType[ bindingType ];
-			this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];
-
-		},
-
-		unbind: function () {
-
-			this.node = null;
-
-			// back to the prototype version of getValue / setValue
-			// note: avoiding to mutate the shape of 'this' via 'delete'
-			this.getValue = this._getValue_unbound;
-			this.setValue = this._setValue_unbound;
-
-		}
-
-	} );
-
-	//!\ DECLARE ALIAS AFTER assign prototype !
-	Object.assign( PropertyBinding.prototype, {
-
-		// initial state of these methods that calls 'bind'
-		_getValue_unbound: PropertyBinding.prototype.getValue,
-		_setValue_unbound: PropertyBinding.prototype.setValue,
-
-	} );
-
-	/**
-	 *
-	 * A group of objects that receives a shared animation state.
-	 *
-	 * Usage:
-	 *
-	 * 	-	Add objects you would otherwise pass as 'root' to the
-	 * 		constructor or the .clipAction method of AnimationMixer.
-	 *
-	 * 	-	Instead pass this object as 'root'.
-	 *
-	 * 	-	You can also add and remove objects later when the mixer
-	 * 		is running.
-	 *
-	 * Note:
-	 *
-	 *  	Objects of this class appear as one object to the mixer,
-	 *  	so cache control of the individual objects must be done
-	 *  	on the group.
-	 *
-	 * Limitation:
-	 *
-	 * 	- 	The animated properties must be compatible among the
-	 * 		all objects in the group.
-	 *
-	 *  -	A single property can either be controlled through a
-	 *  	target group or directly, but not both.
-	 *
-	 * @author tschw
-	 */
-
-	function AnimationObjectGroup() {
-
-		this.uuid = _Math.generateUUID();
-
-		// cached objects followed by the active ones
-		this._objects = Array.prototype.slice.call( arguments );
-
-		this.nCachedObjects_ = 0;			// threshold
-		// note: read by PropertyBinding.Composite
-
-		var indices = {};
-		this._indicesByUUID = indices;		// for bookkeeping
-
-		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-			indices[ arguments[ i ].uuid ] = i;
-
-		}
-
-		this._paths = [];					// inside: string
-		this._parsedPaths = [];				// inside: { we don't care, here }
-		this._bindings = []; 				// inside: Array< PropertyBinding >
-		this._bindingsIndicesByPath = {}; 	// inside: indices in these arrays
-
-		var scope = this;
-
-		this.stats = {
-
-			objects: {
-				get total() {
-
-					return scope._objects.length;
-
-				},
-				get inUse() {
-
-					return this.total - scope.nCachedObjects_;
-
-				}
-			},
-			get bindingsPerObject() {
-
-				return scope._bindings.length;
-
-			}
-
-		};
-
-	}
-
-	Object.assign( AnimationObjectGroup.prototype, {
-
-		isAnimationObjectGroup: true,
-
-		add: function () {
-
-			var objects = this._objects,
-				nObjects = objects.length,
-				nCachedObjects = this.nCachedObjects_,
-				indicesByUUID = this._indicesByUUID,
-				paths = this._paths,
-				parsedPaths = this._parsedPaths,
-				bindings = this._bindings,
-				nBindings = bindings.length,
-				knownObject = undefined;
-
-			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-				var object = arguments[ i ],
-					uuid = object.uuid,
-					index = indicesByUUID[ uuid ];
-
-				if ( index === undefined ) {
-
-					// unknown object -> add it to the ACTIVE region
-
-					index = nObjects ++;
-					indicesByUUID[ uuid ] = index;
-					objects.push( object );
-
-					// accounting is done, now do the same for all bindings
-
-					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-						bindings[ j ].push( new PropertyBinding( object, paths[ j ], parsedPaths[ j ] ) );
-
-					}
-
-				} else if ( index < nCachedObjects ) {
-
-					knownObject = objects[ index ];
-
-					// move existing object to the ACTIVE region
-
-					var firstActiveIndex = -- nCachedObjects,
-						lastCachedObject = objects[ firstActiveIndex ];
-
-					indicesByUUID[ lastCachedObject.uuid ] = index;
-					objects[ index ] = lastCachedObject;
-
-					indicesByUUID[ uuid ] = firstActiveIndex;
-					objects[ firstActiveIndex ] = object;
-
-					// accounting is done, now do the same for all bindings
-
-					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-						var bindingsForPath = bindings[ j ],
-							lastCached = bindingsForPath[ firstActiveIndex ],
-							binding = bindingsForPath[ index ];
-
-						bindingsForPath[ index ] = lastCached;
-
-						if ( binding === undefined ) {
-
-							// since we do not bother to create new bindings
-							// for objects that are cached, the binding may
-							// or may not exist
-
-							binding = new PropertyBinding( object, paths[ j ], parsedPaths[ j ] );
-
-						}
-
-						bindingsForPath[ firstActiveIndex ] = binding;
-
-					}
-
-				} else if ( objects[ index ] !== knownObject ) {
-
-					console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
-							'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );
-
-				} // else the object is already where we want it to be
-
-			} // for arguments
-
-			this.nCachedObjects_ = nCachedObjects;
-
-		},
-
-		remove: function () {
-
-			var objects = this._objects,
-				nCachedObjects = this.nCachedObjects_,
-				indicesByUUID = this._indicesByUUID,
-				bindings = this._bindings,
-				nBindings = bindings.length;
-
-			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-				var object = arguments[ i ],
-					uuid = object.uuid,
-					index = indicesByUUID[ uuid ];
-
-				if ( index !== undefined && index >= nCachedObjects ) {
-
-					// move existing object into the CACHED region
-
-					var lastCachedIndex = nCachedObjects ++,
-						firstActiveObject = objects[ lastCachedIndex ];
-
-					indicesByUUID[ firstActiveObject.uuid ] = index;
-					objects[ index ] = firstActiveObject;
-
-					indicesByUUID[ uuid ] = lastCachedIndex;
-					objects[ lastCachedIndex ] = object;
-
-					// accounting is done, now do the same for all bindings
-
-					for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-						var bindingsForPath = bindings[ j ],
-							firstActive = bindingsForPath[ lastCachedIndex ],
-							binding = bindingsForPath[ index ];
-
-						bindingsForPath[ index ] = firstActive;
-						bindingsForPath[ lastCachedIndex ] = binding;
-
-					}
-
-				}
-
-			} // for arguments
-
-			this.nCachedObjects_ = nCachedObjects;
-
-		},
-
-		// remove & forget
-		uncache: function () {
-
-			var objects = this._objects,
-				nObjects = objects.length,
-				nCachedObjects = this.nCachedObjects_,
-				indicesByUUID = this._indicesByUUID,
-				bindings = this._bindings,
-				nBindings = bindings.length;
-
-			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {
-
-				var object = arguments[ i ],
-					uuid = object.uuid,
-					index = indicesByUUID[ uuid ];
-
-				if ( index !== undefined ) {
-
-					delete indicesByUUID[ uuid ];
-
-					if ( index < nCachedObjects ) {
-
-						// object is cached, shrink the CACHED region
-
-						var firstActiveIndex = -- nCachedObjects,
-							lastCachedObject = objects[ firstActiveIndex ],
-							lastIndex = -- nObjects,
-							lastObject = objects[ lastIndex ];
-
-						// last cached object takes this object's place
-						indicesByUUID[ lastCachedObject.uuid ] = index;
-						objects[ index ] = lastCachedObject;
-
-						// last object goes to the activated slot and pop
-						indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
-						objects[ firstActiveIndex ] = lastObject;
-						objects.pop();
-
-						// accounting is done, now do the same for all bindings
-
-						for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-							var bindingsForPath = bindings[ j ],
-								lastCached = bindingsForPath[ firstActiveIndex ],
-								last = bindingsForPath[ lastIndex ];
-
-							bindingsForPath[ index ] = lastCached;
-							bindingsForPath[ firstActiveIndex ] = last;
-							bindingsForPath.pop();
-
-						}
-
-					} else {
-
-						// object is active, just swap with the last and pop
-
-						var lastIndex = -- nObjects,
-							lastObject = objects[ lastIndex ];
-
-						indicesByUUID[ lastObject.uuid ] = index;
-						objects[ index ] = lastObject;
-						objects.pop();
-
-						// accounting is done, now do the same for all bindings
-
-						for ( var j = 0, m = nBindings; j !== m; ++ j ) {
-
-							var bindingsForPath = bindings[ j ];
-
-							bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
-							bindingsForPath.pop();
-
-						}
-
-					} // cached or active
-
-				} // if object is known
-
-			} // for arguments
-
-			this.nCachedObjects_ = nCachedObjects;
-
-		},
-
-		// Internal interface used by befriended PropertyBinding.Composite:
-
-		subscribe_: function ( path, parsedPath ) {
-
-			// returns an array of bindings for the given path that is changed
-			// according to the contained objects in the group
-
-			var indicesByPath = this._bindingsIndicesByPath,
-				index = indicesByPath[ path ],
-				bindings = this._bindings;
-
-			if ( index !== undefined ) return bindings[ index ];
-
-			var paths = this._paths,
-				parsedPaths = this._parsedPaths,
-				objects = this._objects,
-				nObjects = objects.length,
-				nCachedObjects = this.nCachedObjects_,
-				bindingsForPath = new Array( nObjects );
-
-			index = bindings.length;
-
-			indicesByPath[ path ] = index;
-
-			paths.push( path );
-			parsedPaths.push( parsedPath );
-			bindings.push( bindingsForPath );
-
-			for ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {
-
-				var object = objects[ i ];
-				bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );
-
-			}
-
-			return bindingsForPath;
-
-		},
-
-		unsubscribe_: function ( path ) {
-
-			// tells the group to forget about a property path and no longer
-			// update the array previously obtained with 'subscribe_'
-
-			var indicesByPath = this._bindingsIndicesByPath,
-				index = indicesByPath[ path ];
-
-			if ( index !== undefined ) {
-
-				var paths = this._paths,
-					parsedPaths = this._parsedPaths,
-					bindings = this._bindings,
-					lastBindingsIndex = bindings.length - 1,
-					lastBindings = bindings[ lastBindingsIndex ],
-					lastBindingsPath = path[ lastBindingsIndex ];
-
-				indicesByPath[ lastBindingsPath ] = index;
-
-				bindings[ index ] = lastBindings;
-				bindings.pop();
-
-				parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
-				parsedPaths.pop();
-
-				paths[ index ] = paths[ lastBindingsIndex ];
-				paths.pop();
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Action provided by AnimationMixer for scheduling clip playback on specific
-	 * objects.
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 *
-	 */
-
-	function AnimationAction( mixer, clip, localRoot ) {
-
-		this._mixer = mixer;
-		this._clip = clip;
-		this._localRoot = localRoot || null;
-
-		var tracks = clip.tracks,
-			nTracks = tracks.length,
-			interpolants = new Array( nTracks );
-
-		var interpolantSettings = {
-			endingStart: ZeroCurvatureEnding,
-			endingEnd: ZeroCurvatureEnding
-		};
-
-		for ( var i = 0; i !== nTracks; ++ i ) {
-
-			var interpolant = tracks[ i ].createInterpolant( null );
-			interpolants[ i ] = interpolant;
-			interpolant.settings = interpolantSettings;
-
-		}
-
-		this._interpolantSettings = interpolantSettings;
-
-		this._interpolants = interpolants;	// bound by the mixer
-
-		// inside: PropertyMixer (managed by the mixer)
-		this._propertyBindings = new Array( nTracks );
-
-		this._cacheIndex = null;			// for the memory manager
-		this._byClipCacheIndex = null;		// for the memory manager
-
-		this._timeScaleInterpolant = null;
-		this._weightInterpolant = null;
-
-		this.loop = LoopRepeat;
-		this._loopCount = - 1;
-
-		// global mixer time when the action is to be started
-		// it's set back to 'null' upon start of the action
-		this._startTime = null;
-
-		// scaled local time of the action
-		// gets clamped or wrapped to 0..clip.duration according to loop
-		this.time = 0;
-
-		this.timeScale = 1;
-		this._effectiveTimeScale = 1;
-
-		this.weight = 1;
-		this._effectiveWeight = 1;
-
-		this.repetitions = Infinity; 		// no. of repetitions when looping
-
-		this.paused = false;				// true -> zero effective time scale
-		this.enabled = true;				// false -> zero effective weight
-
-		this.clampWhenFinished 	= false;	// keep feeding the last frame?
-
-		this.zeroSlopeAtStart 	= true;		// for smooth interpolation w/o separate
-		this.zeroSlopeAtEnd		= true;		// clips for start, loop and end
-
-	}
-
-	Object.assign( AnimationAction.prototype, {
-
-		// State & Scheduling
-
-		play: function () {
-
-			this._mixer._activateAction( this );
-
-			return this;
-
-		},
-
-		stop: function () {
-
-			this._mixer._deactivateAction( this );
-
-			return this.reset();
-
-		},
-
-		reset: function () {
-
-			this.paused = false;
-			this.enabled = true;
-
-			this.time = 0;			// restart clip
-			this._loopCount = - 1;	// forget previous loops
-			this._startTime = null;	// forget scheduling
-
-			return this.stopFading().stopWarping();
-
-		},
-
-		isRunning: function () {
-
-			return this.enabled && ! this.paused && this.timeScale !== 0 &&
-					this._startTime === null && this._mixer._isActiveAction( this );
-
-		},
-
-		// return true when play has been called
-		isScheduled: function () {
-
-			return this._mixer._isActiveAction( this );
-
-		},
-
-		startAt: function ( time ) {
-
-			this._startTime = time;
-
-			return this;
-
-		},
-
-		setLoop: function ( mode, repetitions ) {
-
-			this.loop = mode;
-			this.repetitions = repetitions;
-
-			return this;
-
-		},
-
-		// Weight
-
-		// set the weight stopping any scheduled fading
-		// although .enabled = false yields an effective weight of zero, this
-		// method does *not* change .enabled, because it would be confusing
-		setEffectiveWeight: function ( weight ) {
-
-			this.weight = weight;
-
-			// note: same logic as when updated at runtime
-			this._effectiveWeight = this.enabled ? weight : 0;
-
-			return this.stopFading();
-
-		},
-
-		// return the weight considering fading and .enabled
-		getEffectiveWeight: function () {
-
-			return this._effectiveWeight;
-
-		},
-
-		fadeIn: function ( duration ) {
-
-			return this._scheduleFading( duration, 0, 1 );
-
-		},
-
-		fadeOut: function ( duration ) {
-
-			return this._scheduleFading( duration, 1, 0 );
-
-		},
-
-		crossFadeFrom: function ( fadeOutAction, duration, warp ) {
-
-			fadeOutAction.fadeOut( duration );
-			this.fadeIn( duration );
-
-			if ( warp ) {
-
-				var fadeInDuration = this._clip.duration,
-					fadeOutDuration = fadeOutAction._clip.duration,
-
-					startEndRatio = fadeOutDuration / fadeInDuration,
-					endStartRatio = fadeInDuration / fadeOutDuration;
-
-				fadeOutAction.warp( 1.0, startEndRatio, duration );
-				this.warp( endStartRatio, 1.0, duration );
-
-			}
-
-			return this;
-
-		},
-
-		crossFadeTo: function ( fadeInAction, duration, warp ) {
-
-			return fadeInAction.crossFadeFrom( this, duration, warp );
-
-		},
-
-		stopFading: function () {
-
-			var weightInterpolant = this._weightInterpolant;
-
-			if ( weightInterpolant !== null ) {
-
-				this._weightInterpolant = null;
-				this._mixer._takeBackControlInterpolant( weightInterpolant );
-
-			}
-
-			return this;
-
-		},
-
-		// Time Scale Control
-
-		// set the time scale stopping any scheduled warping
-		// although .paused = true yields an effective time scale of zero, this
-		// method does *not* change .paused, because it would be confusing
-		setEffectiveTimeScale: function ( timeScale ) {
-
-			this.timeScale = timeScale;
-			this._effectiveTimeScale = this.paused ? 0 : timeScale;
-
-			return this.stopWarping();
-
-		},
-
-		// return the time scale considering warping and .paused
-		getEffectiveTimeScale: function () {
-
-			return this._effectiveTimeScale;
-
-		},
-
-		setDuration: function ( duration ) {
-
-			this.timeScale = this._clip.duration / duration;
-
-			return this.stopWarping();
-
-		},
-
-		syncWith: function ( action ) {
-
-			this.time = action.time;
-			this.timeScale = action.timeScale;
-
-			return this.stopWarping();
-
-		},
-
-		halt: function ( duration ) {
-
-			return this.warp( this._effectiveTimeScale, 0, duration );
-
-		},
-
-		warp: function ( startTimeScale, endTimeScale, duration ) {
-
-			var mixer = this._mixer, now = mixer.time,
-				interpolant = this._timeScaleInterpolant,
-
-				timeScale = this.timeScale;
-
-			if ( interpolant === null ) {
-
-				interpolant = mixer._lendControlInterpolant();
-				this._timeScaleInterpolant = interpolant;
-
-			}
-
-			var times = interpolant.parameterPositions,
-				values = interpolant.sampleValues;
-
-			times[ 0 ] = now;
-			times[ 1 ] = now + duration;
-
-			values[ 0 ] = startTimeScale / timeScale;
-			values[ 1 ] = endTimeScale / timeScale;
-
-			return this;
-
-		},
-
-		stopWarping: function () {
-
-			var timeScaleInterpolant = this._timeScaleInterpolant;
-
-			if ( timeScaleInterpolant !== null ) {
-
-				this._timeScaleInterpolant = null;
-				this._mixer._takeBackControlInterpolant( timeScaleInterpolant );
-
-			}
-
-			return this;
-
-		},
-
-		// Object Accessors
-
-		getMixer: function () {
-
-			return this._mixer;
-
-		},
-
-		getClip: function () {
-
-			return this._clip;
-
-		},
-
-		getRoot: function () {
-
-			return this._localRoot || this._mixer._root;
-
-		},
-
-		// Interna
-
-		_update: function ( time, deltaTime, timeDirection, accuIndex ) {
-
-			// called by the mixer
-
-			if ( ! this.enabled ) {
-
-				// call ._updateWeight() to update ._effectiveWeight
-
-				this._updateWeight( time );
-				return;
-
-			}
-
-			var startTime = this._startTime;
-
-			if ( startTime !== null ) {
-
-				// check for scheduled start of action
-
-				var timeRunning = ( time - startTime ) * timeDirection;
-				if ( timeRunning < 0 || timeDirection === 0 ) {
-
-					return; // yet to come / don't decide when delta = 0
-
-				}
-
-				// start
-
-				this._startTime = null; // unschedule
-				deltaTime = timeDirection * timeRunning;
-
-			}
-
-			// apply time scale and advance time
-
-			deltaTime *= this._updateTimeScale( time );
-			var clipTime = this._updateTime( deltaTime );
-
-			// note: _updateTime may disable the action resulting in
-			// an effective weight of 0
-
-			var weight = this._updateWeight( time );
-
-			if ( weight > 0 ) {
-
-				var interpolants = this._interpolants;
-				var propertyMixers = this._propertyBindings;
-
-				for ( var j = 0, m = interpolants.length; j !== m; ++ j ) {
-
-					interpolants[ j ].evaluate( clipTime );
-					propertyMixers[ j ].accumulate( accuIndex, weight );
-
-				}
-
-			}
-
-		},
-
-		_updateWeight: function ( time ) {
-
-			var weight = 0;
-
-			if ( this.enabled ) {
-
-				weight = this.weight;
-				var interpolant = this._weightInterpolant;
-
-				if ( interpolant !== null ) {
-
-					var interpolantValue = interpolant.evaluate( time )[ 0 ];
-
-					weight *= interpolantValue;
-
-					if ( time > interpolant.parameterPositions[ 1 ] ) {
-
-						this.stopFading();
-
-						if ( interpolantValue === 0 ) {
-
-							// faded out, disable
-							this.enabled = false;
-
-						}
-
-					}
-
-				}
-
-			}
-
-			this._effectiveWeight = weight;
-			return weight;
-
-		},
-
-		_updateTimeScale: function ( time ) {
-
-			var timeScale = 0;
-
-			if ( ! this.paused ) {
-
-				timeScale = this.timeScale;
-
-				var interpolant = this._timeScaleInterpolant;
-
-				if ( interpolant !== null ) {
-
-					var interpolantValue = interpolant.evaluate( time )[ 0 ];
-
-					timeScale *= interpolantValue;
-
-					if ( time > interpolant.parameterPositions[ 1 ] ) {
-
-						this.stopWarping();
-
-						if ( timeScale === 0 ) {
-
-							// motion has halted, pause
-							this.paused = true;
-
-						} else {
-
-							// warp done - apply final time scale
-							this.timeScale = timeScale;
-
-						}
-
-					}
-
-				}
-
-			}
-
-			this._effectiveTimeScale = timeScale;
-			return timeScale;
-
-		},
-
-		_updateTime: function ( deltaTime ) {
-
-			var time = this.time + deltaTime;
-
-			if ( deltaTime === 0 ) return time;
-
-			var duration = this._clip.duration,
-
-				loop = this.loop,
-				loopCount = this._loopCount;
-
-			if ( loop === LoopOnce ) {
-
-				if ( loopCount === - 1 ) {
-
-					// just started
-
-					this._loopCount = 0;
-					this._setEndings( true, true, false );
-
-				}
-
-				handle_stop: {
-
-					if ( time >= duration ) {
-
-						time = duration;
-
-					} else if ( time < 0 ) {
-
-						time = 0;
-
-					} else break handle_stop;
-
-					if ( this.clampWhenFinished ) this.paused = true;
-					else this.enabled = false;
-
-					this._mixer.dispatchEvent( {
-						type: 'finished', action: this,
-						direction: deltaTime < 0 ? - 1 : 1
-					} );
-
-				}
-
-			} else { // repetitive Repeat or PingPong
-
-				var pingPong = ( loop === LoopPingPong );
-
-				if ( loopCount === - 1 ) {
-
-					// just started
-
-					if ( deltaTime >= 0 ) {
-
-						loopCount = 0;
-
-						this._setEndings( true, this.repetitions === 0, pingPong );
-
-					} else {
-
-						// when looping in reverse direction, the initial
-						// transition through zero counts as a repetition,
-						// so leave loopCount at -1
-
-						this._setEndings( this.repetitions === 0, true, pingPong );
-
-					}
-
-				}
-
-				if ( time >= duration || time < 0 ) {
-
-					// wrap around
-
-					var loopDelta = Math.floor( time / duration ); // signed
-					time -= duration * loopDelta;
-
-					loopCount += Math.abs( loopDelta );
-
-					var pending = this.repetitions - loopCount;
-
-					if ( pending < 0 ) {
-
-						// have to stop (switch state, clamp time, fire event)
-
-						if ( this.clampWhenFinished ) this.paused = true;
-						else this.enabled = false;
-
-						time = deltaTime > 0 ? duration : 0;
-
-						this._mixer.dispatchEvent( {
-							type: 'finished', action: this,
-							direction: deltaTime > 0 ? 1 : - 1
-						} );
-
-					} else {
-
-						// keep running
-
-						if ( pending === 0 ) {
-
-							// entering the last round
-
-							var atStart = deltaTime < 0;
-							this._setEndings( atStart, ! atStart, pingPong );
-
-						} else {
-
-							this._setEndings( false, false, pingPong );
-
-						}
-
-						this._loopCount = loopCount;
-
-						this._mixer.dispatchEvent( {
-							type: 'loop', action: this, loopDelta: loopDelta
-						} );
-
-					}
-
-				}
-
-				if ( pingPong && ( loopCount & 1 ) === 1 ) {
-
-					// invert time for the "pong round"
-
-					this.time = time;
-					return duration - time;
-
-				}
-
-			}
-
-			this.time = time;
-			return time;
-
-		},
-
-		_setEndings: function ( atStart, atEnd, pingPong ) {
-
-			var settings = this._interpolantSettings;
-
-			if ( pingPong ) {
-
-				settings.endingStart 	= ZeroSlopeEnding;
-				settings.endingEnd		= ZeroSlopeEnding;
-
-			} else {
-
-				// assuming for LoopOnce atStart == atEnd == true
-
-				if ( atStart ) {
-
-					settings.endingStart = this.zeroSlopeAtStart ? ZeroSlopeEnding : ZeroCurvatureEnding;
-
-				} else {
-
-					settings.endingStart = WrapAroundEnding;
-
-				}
-
-				if ( atEnd ) {
-
-					settings.endingEnd = this.zeroSlopeAtEnd ? ZeroSlopeEnding : ZeroCurvatureEnding;
-
-				} else {
-
-					settings.endingEnd 	 = WrapAroundEnding;
-
-				}
-
-			}
-
-		},
-
-		_scheduleFading: function ( duration, weightNow, weightThen ) {
-
-			var mixer = this._mixer, now = mixer.time,
-				interpolant = this._weightInterpolant;
-
-			if ( interpolant === null ) {
-
-				interpolant = mixer._lendControlInterpolant();
-				this._weightInterpolant = interpolant;
-
-			}
-
-			var times = interpolant.parameterPositions,
-				values = interpolant.sampleValues;
-
-			times[ 0 ] = now; 				values[ 0 ] = weightNow;
-			times[ 1 ] = now + duration;	values[ 1 ] = weightThen;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 *
-	 * Player for AnimationClips.
-	 *
-	 *
-	 * @author Ben Houston / http://clara.io/
-	 * @author David Sarno / http://lighthaus.us/
-	 * @author tschw
-	 */
-
-	function AnimationMixer( root ) {
-
-		this._root = root;
-		this._initMemoryManager();
-		this._accuIndex = 0;
-
-		this.time = 0;
-
-		this.timeScale = 1.0;
-
-	}
-
-	AnimationMixer.prototype = Object.assign( Object.create( EventDispatcher.prototype ), {
-
-		constructor: AnimationMixer,
-
-		_bindAction: function ( action, prototypeAction ) {
-
-			var root = action._localRoot || this._root,
-				tracks = action._clip.tracks,
-				nTracks = tracks.length,
-				bindings = action._propertyBindings,
-				interpolants = action._interpolants,
-				rootUuid = root.uuid,
-				bindingsByRoot = this._bindingsByRootAndName,
-				bindingsByName = bindingsByRoot[ rootUuid ];
-
-			if ( bindingsByName === undefined ) {
-
-				bindingsByName = {};
-				bindingsByRoot[ rootUuid ] = bindingsByName;
-
-			}
-
-			for ( var i = 0; i !== nTracks; ++ i ) {
-
-				var track = tracks[ i ],
-					trackName = track.name,
-					binding = bindingsByName[ trackName ];
-
-				if ( binding !== undefined ) {
-
-					bindings[ i ] = binding;
-
-				} else {
-
-					binding = bindings[ i ];
-
-					if ( binding !== undefined ) {
-
-						// existing binding, make sure the cache knows
-
-						if ( binding._cacheIndex === null ) {
-
-							++ binding.referenceCount;
-							this._addInactiveBinding( binding, rootUuid, trackName );
-
-						}
-
-						continue;
-
-					}
-
-					var path = prototypeAction && prototypeAction.
-						_propertyBindings[ i ].binding.parsedPath;
-
-					binding = new PropertyMixer(
-						PropertyBinding.create( root, trackName, path ),
-						track.ValueTypeName, track.getValueSize() );
-
-					++ binding.referenceCount;
-					this._addInactiveBinding( binding, rootUuid, trackName );
-
-					bindings[ i ] = binding;
-
-				}
-
-				interpolants[ i ].resultBuffer = binding.buffer;
-
-			}
-
-		},
-
-		_activateAction: function ( action ) {
-
-			if ( ! this._isActiveAction( action ) ) {
-
-				if ( action._cacheIndex === null ) {
-
-					// this action has been forgotten by the cache, but the user
-					// appears to be still using it -> rebind
-
-					var rootUuid = ( action._localRoot || this._root ).uuid,
-						clipUuid = action._clip.uuid,
-						actionsForClip = this._actionsByClip[ clipUuid ];
-
-					this._bindAction( action,
-						actionsForClip && actionsForClip.knownActions[ 0 ] );
-
-					this._addInactiveAction( action, clipUuid, rootUuid );
-
-				}
-
-				var bindings = action._propertyBindings;
-
-				// increment reference counts / sort out state
-				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
-
-					var binding = bindings[ i ];
-
-					if ( binding.useCount ++ === 0 ) {
-
-						this._lendBinding( binding );
-						binding.saveOriginalState();
-
-					}
-
-				}
-
-				this._lendAction( action );
-
-			}
-
-		},
-
-		_deactivateAction: function ( action ) {
-
-			if ( this._isActiveAction( action ) ) {
-
-				var bindings = action._propertyBindings;
-
-				// decrement reference counts / sort out state
-				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
-
-					var binding = bindings[ i ];
-
-					if ( -- binding.useCount === 0 ) {
-
-						binding.restoreOriginalState();
-						this._takeBackBinding( binding );
-
-					}
-
-				}
-
-				this._takeBackAction( action );
-
-			}
-
-		},
-
-		// Memory manager
-
-		_initMemoryManager: function () {
-
-			this._actions = []; // 'nActiveActions' followed by inactive ones
-			this._nActiveActions = 0;
-
-			this._actionsByClip = {};
-			// inside:
-			// {
-			// 		knownActions: Array< AnimationAction >	- used as prototypes
-			// 		actionByRoot: AnimationAction			- lookup
-			// }
-
-
-			this._bindings = []; // 'nActiveBindings' followed by inactive ones
-			this._nActiveBindings = 0;
-
-			this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >
-
-
-			this._controlInterpolants = []; // same game as above
-			this._nActiveControlInterpolants = 0;
-
-			var scope = this;
-
-			this.stats = {
-
-				actions: {
-					get total() {
-
-						return scope._actions.length;
-
-					},
-					get inUse() {
-
-						return scope._nActiveActions;
-
-					}
-				},
-				bindings: {
-					get total() {
-
-						return scope._bindings.length;
-
-					},
-					get inUse() {
-
-						return scope._nActiveBindings;
-
-					}
-				},
-				controlInterpolants: {
-					get total() {
-
-						return scope._controlInterpolants.length;
-
-					},
-					get inUse() {
-
-						return scope._nActiveControlInterpolants;
-
-					}
-				}
-
-			};
-
-		},
-
-		// Memory management for AnimationAction objects
-
-		_isActiveAction: function ( action ) {
-
-			var index = action._cacheIndex;
-			return index !== null && index < this._nActiveActions;
-
-		},
-
-		_addInactiveAction: function ( action, clipUuid, rootUuid ) {
-
-			var actions = this._actions,
-				actionsByClip = this._actionsByClip,
-				actionsForClip = actionsByClip[ clipUuid ];
-
-			if ( actionsForClip === undefined ) {
-
-				actionsForClip = {
-
-					knownActions: [ action ],
-					actionByRoot: {}
-
-				};
-
-				action._byClipCacheIndex = 0;
-
-				actionsByClip[ clipUuid ] = actionsForClip;
-
-			} else {
-
-				var knownActions = actionsForClip.knownActions;
-
-				action._byClipCacheIndex = knownActions.length;
-				knownActions.push( action );
-
-			}
-
-			action._cacheIndex = actions.length;
-			actions.push( action );
-
-			actionsForClip.actionByRoot[ rootUuid ] = action;
-
-		},
-
-		_removeInactiveAction: function ( action ) {
-
-			var actions = this._actions,
-				lastInactiveAction = actions[ actions.length - 1 ],
-				cacheIndex = action._cacheIndex;
-
-			lastInactiveAction._cacheIndex = cacheIndex;
-			actions[ cacheIndex ] = lastInactiveAction;
-			actions.pop();
-
-			action._cacheIndex = null;
-
-
-			var clipUuid = action._clip.uuid,
-				actionsByClip = this._actionsByClip,
-				actionsForClip = actionsByClip[ clipUuid ],
-				knownActionsForClip = actionsForClip.knownActions,
-
-				lastKnownAction =
-					knownActionsForClip[ knownActionsForClip.length - 1 ],
-
-				byClipCacheIndex = action._byClipCacheIndex;
-
-			lastKnownAction._byClipCacheIndex = byClipCacheIndex;
-			knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
-			knownActionsForClip.pop();
-
-			action._byClipCacheIndex = null;
-
-
-			var actionByRoot = actionsForClip.actionByRoot,
-				rootUuid = ( action._localRoot || this._root ).uuid;
-
-			delete actionByRoot[ rootUuid ];
-
-			if ( knownActionsForClip.length === 0 ) {
-
-				delete actionsByClip[ clipUuid ];
-
-			}
-
-			this._removeInactiveBindingsForAction( action );
-
-		},
-
-		_removeInactiveBindingsForAction: function ( action ) {
-
-			var bindings = action._propertyBindings;
-			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {
-
-				var binding = bindings[ i ];
-
-				if ( -- binding.referenceCount === 0 ) {
-
-					this._removeInactiveBinding( binding );
-
-				}
-
-			}
-
-		},
-
-		_lendAction: function ( action ) {
-
-			// [ active actions |  inactive actions  ]
-			// [  active actions >| inactive actions ]
-			//                 s        a
-			//                  <-swap->
-			//                 a        s
-
-			var actions = this._actions,
-				prevIndex = action._cacheIndex,
-
-				lastActiveIndex = this._nActiveActions ++,
-
-				firstInactiveAction = actions[ lastActiveIndex ];
-
-			action._cacheIndex = lastActiveIndex;
-			actions[ lastActiveIndex ] = action;
-
-			firstInactiveAction._cacheIndex = prevIndex;
-			actions[ prevIndex ] = firstInactiveAction;
-
-		},
-
-		_takeBackAction: function ( action ) {
-
-			// [  active actions  | inactive actions ]
-			// [ active actions |< inactive actions  ]
-			//        a        s
-			//         <-swap->
-			//        s        a
-
-			var actions = this._actions,
-				prevIndex = action._cacheIndex,
-
-				firstInactiveIndex = -- this._nActiveActions,
-
-				lastActiveAction = actions[ firstInactiveIndex ];
-
-			action._cacheIndex = firstInactiveIndex;
-			actions[ firstInactiveIndex ] = action;
-
-			lastActiveAction._cacheIndex = prevIndex;
-			actions[ prevIndex ] = lastActiveAction;
-
-		},
-
-		// Memory management for PropertyMixer objects
-
-		_addInactiveBinding: function ( binding, rootUuid, trackName ) {
-
-			var bindingsByRoot = this._bindingsByRootAndName,
-				bindingByName = bindingsByRoot[ rootUuid ],
-
-				bindings = this._bindings;
-
-			if ( bindingByName === undefined ) {
-
-				bindingByName = {};
-				bindingsByRoot[ rootUuid ] = bindingByName;
-
-			}
-
-			bindingByName[ trackName ] = binding;
-
-			binding._cacheIndex = bindings.length;
-			bindings.push( binding );
-
-		},
-
-		_removeInactiveBinding: function ( binding ) {
-
-			var bindings = this._bindings,
-				propBinding = binding.binding,
-				rootUuid = propBinding.rootNode.uuid,
-				trackName = propBinding.path,
-				bindingsByRoot = this._bindingsByRootAndName,
-				bindingByName = bindingsByRoot[ rootUuid ],
-
-				lastInactiveBinding = bindings[ bindings.length - 1 ],
-				cacheIndex = binding._cacheIndex;
-
-			lastInactiveBinding._cacheIndex = cacheIndex;
-			bindings[ cacheIndex ] = lastInactiveBinding;
-			bindings.pop();
-
-			delete bindingByName[ trackName ];
-
-			remove_empty_map: {
-
-				for ( var _ in bindingByName ) break remove_empty_map; // eslint-disable-line no-unused-vars
-
-				delete bindingsByRoot[ rootUuid ];
-
-			}
-
-		},
-
-		_lendBinding: function ( binding ) {
-
-			var bindings = this._bindings,
-				prevIndex = binding._cacheIndex,
-
-				lastActiveIndex = this._nActiveBindings ++,
-
-				firstInactiveBinding = bindings[ lastActiveIndex ];
-
-			binding._cacheIndex = lastActiveIndex;
-			bindings[ lastActiveIndex ] = binding;
-
-			firstInactiveBinding._cacheIndex = prevIndex;
-			bindings[ prevIndex ] = firstInactiveBinding;
-
-		},
-
-		_takeBackBinding: function ( binding ) {
-
-			var bindings = this._bindings,
-				prevIndex = binding._cacheIndex,
-
-				firstInactiveIndex = -- this._nActiveBindings,
-
-				lastActiveBinding = bindings[ firstInactiveIndex ];
-
-			binding._cacheIndex = firstInactiveIndex;
-			bindings[ firstInactiveIndex ] = binding;
-
-			lastActiveBinding._cacheIndex = prevIndex;
-			bindings[ prevIndex ] = lastActiveBinding;
-
-		},
-
-
-		// Memory management of Interpolants for weight and time scale
-
-		_lendControlInterpolant: function () {
-
-			var interpolants = this._controlInterpolants,
-				lastActiveIndex = this._nActiveControlInterpolants ++,
-				interpolant = interpolants[ lastActiveIndex ];
-
-			if ( interpolant === undefined ) {
-
-				interpolant = new LinearInterpolant(
-					new Float32Array( 2 ), new Float32Array( 2 ),
-					1, this._controlInterpolantsResultBuffer );
-
-				interpolant.__cacheIndex = lastActiveIndex;
-				interpolants[ lastActiveIndex ] = interpolant;
-
-			}
-
-			return interpolant;
-
-		},
-
-		_takeBackControlInterpolant: function ( interpolant ) {
-
-			var interpolants = this._controlInterpolants,
-				prevIndex = interpolant.__cacheIndex,
-
-				firstInactiveIndex = -- this._nActiveControlInterpolants,
-
-				lastActiveInterpolant = interpolants[ firstInactiveIndex ];
-
-			interpolant.__cacheIndex = firstInactiveIndex;
-			interpolants[ firstInactiveIndex ] = interpolant;
-
-			lastActiveInterpolant.__cacheIndex = prevIndex;
-			interpolants[ prevIndex ] = lastActiveInterpolant;
-
-		},
-
-		_controlInterpolantsResultBuffer: new Float32Array( 1 ),
-
-		// return an action for a clip optionally using a custom root target
-		// object (this method allocates a lot of dynamic memory in case a
-		// previously unknown clip/root combination is specified)
-		clipAction: function ( clip, optionalRoot ) {
-
-			var root = optionalRoot || this._root,
-				rootUuid = root.uuid,
-
-				clipObject = typeof clip === 'string' ?
-					AnimationClip.findByName( root, clip ) : clip,
-
-				clipUuid = clipObject !== null ? clipObject.uuid : clip,
-
-				actionsForClip = this._actionsByClip[ clipUuid ],
-				prototypeAction = null;
-
-			if ( actionsForClip !== undefined ) {
-
-				var existingAction =
-						actionsForClip.actionByRoot[ rootUuid ];
-
-				if ( existingAction !== undefined ) {
-
-					return existingAction;
-
-				}
-
-				// we know the clip, so we don't have to parse all
-				// the bindings again but can just copy
-				prototypeAction = actionsForClip.knownActions[ 0 ];
-
-				// also, take the clip from the prototype action
-				if ( clipObject === null )
-					clipObject = prototypeAction._clip;
-
-			}
-
-			// clip must be known when specified via string
-			if ( clipObject === null ) return null;
-
-			// allocate all resources required to run it
-			var newAction = new AnimationAction( this, clipObject, optionalRoot );
-
-			this._bindAction( newAction, prototypeAction );
-
-			// and make the action known to the memory manager
-			this._addInactiveAction( newAction, clipUuid, rootUuid );
-
-			return newAction;
-
-		},
-
-		// get an existing action
-		existingAction: function ( clip, optionalRoot ) {
-
-			var root = optionalRoot || this._root,
-				rootUuid = root.uuid,
-
-				clipObject = typeof clip === 'string' ?
-					AnimationClip.findByName( root, clip ) : clip,
-
-				clipUuid = clipObject ? clipObject.uuid : clip,
-
-				actionsForClip = this._actionsByClip[ clipUuid ];
-
-			if ( actionsForClip !== undefined ) {
-
-				return actionsForClip.actionByRoot[ rootUuid ] || null;
-
-			}
-
-			return null;
-
-		},
-
-		// deactivates all previously scheduled actions
-		stopAllAction: function () {
-
-			var actions = this._actions,
-				nActions = this._nActiveActions,
-				bindings = this._bindings,
-				nBindings = this._nActiveBindings;
-
-			this._nActiveActions = 0;
-			this._nActiveBindings = 0;
-
-			for ( var i = 0; i !== nActions; ++ i ) {
-
-				actions[ i ].reset();
-
-			}
-
-			for ( var i = 0; i !== nBindings; ++ i ) {
-
-				bindings[ i ].useCount = 0;
-
-			}
-
-			return this;
-
-		},
-
-		// advance the time and update apply the animation
-		update: function ( deltaTime ) {
-
-			deltaTime *= this.timeScale;
-
-			var actions = this._actions,
-				nActions = this._nActiveActions,
-
-				time = this.time += deltaTime,
-				timeDirection = Math.sign( deltaTime ),
-
-				accuIndex = this._accuIndex ^= 1;
-
-			// run active actions
-
-			for ( var i = 0; i !== nActions; ++ i ) {
-
-				var action = actions[ i ];
-
-				action._update( time, deltaTime, timeDirection, accuIndex );
-
-			}
-
-			// update scene graph
-
-			var bindings = this._bindings,
-				nBindings = this._nActiveBindings;
-
-			for ( var i = 0; i !== nBindings; ++ i ) {
-
-				bindings[ i ].apply( accuIndex );
-
-			}
-
-			return this;
-
-		},
-
-		// return this mixer's root target object
-		getRoot: function () {
-
-			return this._root;
-
-		},
-
-		// free all resources specific to a particular clip
-		uncacheClip: function ( clip ) {
-
-			var actions = this._actions,
-				clipUuid = clip.uuid,
-				actionsByClip = this._actionsByClip,
-				actionsForClip = actionsByClip[ clipUuid ];
-
-			if ( actionsForClip !== undefined ) {
-
-				// note: just calling _removeInactiveAction would mess up the
-				// iteration state and also require updating the state we can
-				// just throw away
-
-				var actionsToRemove = actionsForClip.knownActions;
-
-				for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {
-
-					var action = actionsToRemove[ i ];
-
-					this._deactivateAction( action );
-
-					var cacheIndex = action._cacheIndex,
-						lastInactiveAction = actions[ actions.length - 1 ];
-
-					action._cacheIndex = null;
-					action._byClipCacheIndex = null;
-
-					lastInactiveAction._cacheIndex = cacheIndex;
-					actions[ cacheIndex ] = lastInactiveAction;
-					actions.pop();
-
-					this._removeInactiveBindingsForAction( action );
-
-				}
-
-				delete actionsByClip[ clipUuid ];
-
-			}
-
-		},
-
-		// free all resources specific to a particular root target object
-		uncacheRoot: function ( root ) {
-
-			var rootUuid = root.uuid,
-				actionsByClip = this._actionsByClip;
-
-			for ( var clipUuid in actionsByClip ) {
-
-				var actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
-					action = actionByRoot[ rootUuid ];
-
-				if ( action !== undefined ) {
-
-					this._deactivateAction( action );
-					this._removeInactiveAction( action );
-
-				}
-
-			}
-
-			var bindingsByRoot = this._bindingsByRootAndName,
-				bindingByName = bindingsByRoot[ rootUuid ];
-
-			if ( bindingByName !== undefined ) {
-
-				for ( var trackName in bindingByName ) {
-
-					var binding = bindingByName[ trackName ];
-					binding.restoreOriginalState();
-					this._removeInactiveBinding( binding );
-
-				}
-
-			}
-
-		},
-
-		// remove a targeted clip from the cache
-		uncacheAction: function ( clip, optionalRoot ) {
-
-			var action = this.existingAction( clip, optionalRoot );
-
-			if ( action !== null ) {
-
-				this._deactivateAction( action );
-				this._removeInactiveAction( action );
-
-			}
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Uniform( value ) {
-
-		if ( typeof value === 'string' ) {
-
-			console.warn( 'THREE.Uniform: Type parameter is no longer needed.' );
-			value = arguments[ 1 ];
-
-		}
-
-		this.value = value;
-
-	}
-
-	Uniform.prototype.clone = function () {
-
-		return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );
-
-	};
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InstancedBufferGeometry() {
-
-		BufferGeometry.call( this );
-
-		this.type = 'InstancedBufferGeometry';
-		this.maxInstancedCount = undefined;
-
-	}
-
-	InstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {
-
-		constructor: InstancedBufferGeometry,
-
-		isInstancedBufferGeometry: true,
-
-		copy: function ( source ) {
-
-			BufferGeometry.prototype.copy.call( this, source );
-
-			this.maxInstancedCount = source.maxInstancedCount;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		}
-
-	} );
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {
-
-		this.uuid = _Math.generateUUID();
-
-		this.data = interleavedBuffer;
-		this.itemSize = itemSize;
-		this.offset = offset;
-
-		this.normalized = normalized === true;
-
-	}
-
-	Object.defineProperties( InterleavedBufferAttribute.prototype, {
-
-		count: {
-
-			get: function () {
-
-				return this.data.count;
-
-			}
-
-		},
-
-		array: {
-
-			get: function () {
-
-				return this.data.array;
-
-			}
-
-		}
-
-	} );
-
-	Object.assign( InterleavedBufferAttribute.prototype, {
-
-		isInterleavedBufferAttribute: true,
-
-		setX: function ( index, x ) {
-
-			this.data.array[ index * this.data.stride + this.offset ] = x;
-
-			return this;
-
-		},
-
-		setY: function ( index, y ) {
-
-			this.data.array[ index * this.data.stride + this.offset + 1 ] = y;
-
-			return this;
-
-		},
-
-		setZ: function ( index, z ) {
-
-			this.data.array[ index * this.data.stride + this.offset + 2 ] = z;
-
-			return this;
-
-		},
-
-		setW: function ( index, w ) {
-
-			this.data.array[ index * this.data.stride + this.offset + 3 ] = w;
-
-			return this;
-
-		},
-
-		getX: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset ];
-
-		},
-
-		getY: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset + 1 ];
-
-		},
-
-		getZ: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset + 2 ];
-
-		},
-
-		getW: function ( index ) {
-
-			return this.data.array[ index * this.data.stride + this.offset + 3 ];
-
-		},
-
-		setXY: function ( index, x, y ) {
-
-			index = index * this.data.stride + this.offset;
-
-			this.data.array[ index + 0 ] = x;
-			this.data.array[ index + 1 ] = y;
-
-			return this;
-
-		},
-
-		setXYZ: function ( index, x, y, z ) {
-
-			index = index * this.data.stride + this.offset;
-
-			this.data.array[ index + 0 ] = x;
-			this.data.array[ index + 1 ] = y;
-			this.data.array[ index + 2 ] = z;
-
-			return this;
-
-		},
-
-		setXYZW: function ( index, x, y, z, w ) {
-
-			index = index * this.data.stride + this.offset;
-
-			this.data.array[ index + 0 ] = x;
-			this.data.array[ index + 1 ] = y;
-			this.data.array[ index + 2 ] = z;
-			this.data.array[ index + 3 ] = w;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InterleavedBuffer( array, stride ) {
-
-		this.uuid = _Math.generateUUID();
-
-		this.array = array;
-		this.stride = stride;
-		this.count = array !== undefined ? array.length / stride : 0;
-
-		this.dynamic = false;
-		this.updateRange = { offset: 0, count: - 1 };
-
-		this.onUploadCallback = function () {};
-
-		this.version = 0;
-
-	}
-
-	Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {
-
-		set: function ( value ) {
-
-			if ( value === true ) this.version ++;
-
-		}
-
-	} );
-
-	Object.assign( InterleavedBuffer.prototype, {
-
-		isInterleavedBuffer: true,
-
-		setArray: function ( array ) {
-
-			if ( Array.isArray( array ) ) {
-
-				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );
-
-			}
-
-			this.count = array !== undefined ? array.length / this.stride : 0;
-			this.array = array;
-
-		},
-
-		setDynamic: function ( value ) {
-
-			this.dynamic = value;
-
-			return this;
-
-		},
-
-		copy: function ( source ) {
-
-			this.array = new source.array.constructor( source.array );
-			this.count = source.count;
-			this.stride = source.stride;
-			this.dynamic = source.dynamic;
-
-			return this;
-
-		},
-
-		copyAt: function ( index1, attribute, index2 ) {
-
-			index1 *= this.stride;
-			index2 *= attribute.stride;
-
-			for ( var i = 0, l = this.stride; i < l; i ++ ) {
-
-				this.array[ index1 + i ] = attribute.array[ index2 + i ];
-
-			}
-
-			return this;
-
-		},
-
-		set: function ( value, offset ) {
-
-			if ( offset === undefined ) offset = 0;
-
-			this.array.set( value, offset );
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		onUpload: function ( callback ) {
-
-			this.onUploadCallback = callback;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {
-
-		InterleavedBuffer.call( this, array, stride );
-
-		this.meshPerAttribute = meshPerAttribute || 1;
-
-	}
-
-	InstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {
-
-		constructor: InstancedInterleavedBuffer,
-
-		isInstancedInterleavedBuffer: true,
-
-		copy: function ( source ) {
-
-			InterleavedBuffer.prototype.copy.call( this, source );
-
-			this.meshPerAttribute = source.meshPerAttribute;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author benaadams / https://twitter.com/ben_a_adams
-	 */
-
-	function InstancedBufferAttribute( array, itemSize, meshPerAttribute ) {
-
-		BufferAttribute.call( this, array, itemSize );
-
-		this.meshPerAttribute = meshPerAttribute || 1;
-
-	}
-
-	InstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {
-
-		constructor: InstancedBufferAttribute,
-
-		isInstancedBufferAttribute: true,
-
-		copy: function ( source ) {
-
-			BufferAttribute.prototype.copy.call( this, source );
-
-			this.meshPerAttribute = source.meshPerAttribute;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author bhouston / http://clara.io/
-	 * @author stephomi / http://stephaneginier.com/
-	 */
-
-	function Raycaster( origin, direction, near, far ) {
-
-		this.ray = new Ray( origin, direction );
-		// direction is assumed to be normalized (for accurate distance calculations)
-
-		this.near = near || 0;
-		this.far = far || Infinity;
-
-		this.params = {
-			Mesh: {},
-			Line: {},
-			LOD: {},
-			Points: { threshold: 1 },
-			Sprite: {}
-		};
-
-		Object.defineProperties( this.params, {
-			PointCloud: {
-				get: function () {
-
-					console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
-					return this.Points;
-
-				}
-			}
-		} );
-
-	}
-
-	function ascSort( a, b ) {
-
-		return a.distance - b.distance;
-
-	}
-
-	function intersectObject( object, raycaster, intersects, recursive ) {
-
-		if ( object.visible === false ) return;
-
-		object.raycast( raycaster, intersects );
-
-		if ( recursive === true ) {
-
-			var children = object.children;
-
-			for ( var i = 0, l = children.length; i < l; i ++ ) {
-
-				intersectObject( children[ i ], raycaster, intersects, true );
-
-			}
-
-		}
-
-	}
-
-	Object.assign( Raycaster.prototype, {
-
-		linePrecision: 1,
-
-		set: function ( origin, direction ) {
-
-			// direction is assumed to be normalized (for accurate distance calculations)
-
-			this.ray.set( origin, direction );
-
-		},
-
-		setFromCamera: function ( coords, camera ) {
-
-			if ( ( camera && camera.isPerspectiveCamera ) ) {
-
-				this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
-				this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();
-
-			} else if ( ( camera && camera.isOrthographicCamera ) ) {
-
-				this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
-				this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );
-
-			} else {
-
-				console.error( 'THREE.Raycaster: Unsupported camera type.' );
-
-			}
-
-		},
-
-		intersectObject: function ( object, recursive ) {
-
-			var intersects = [];
-
-			intersectObject( object, this, intersects, recursive );
-
-			intersects.sort( ascSort );
-
-			return intersects;
-
-		},
-
-		intersectObjects: function ( objects, recursive ) {
-
-			var intersects = [];
-
-			if ( Array.isArray( objects ) === false ) {
-
-				console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
-				return intersects;
-
-			}
-
-			for ( var i = 0, l = objects.length; i < l; i ++ ) {
-
-				intersectObject( objects[ i ], this, intersects, recursive );
-
-			}
-
-			intersects.sort( ascSort );
-
-			return intersects;
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function Clock( autoStart ) {
-
-		this.autoStart = ( autoStart !== undefined ) ? autoStart : true;
-
-		this.startTime = 0;
-		this.oldTime = 0;
-		this.elapsedTime = 0;
-
-		this.running = false;
-
-	}
-
-	Object.assign( Clock.prototype, {
-
-		start: function () {
-
-			this.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732
-
-			this.oldTime = this.startTime;
-			this.elapsedTime = 0;
-			this.running = true;
-
-		},
-
-		stop: function () {
-
-			this.getElapsedTime();
-			this.running = false;
-			this.autoStart = false;
-
-		},
-
-		getElapsedTime: function () {
-
-			this.getDelta();
-			return this.elapsedTime;
-
-		},
-
-		getDelta: function () {
-
-			var diff = 0;
-
-			if ( this.autoStart && ! this.running ) {
-
-				this.start();
-				return 0;
-
-			}
-
-			if ( this.running ) {
-
-				var newTime = ( typeof performance === 'undefined' ? Date : performance ).now();
-
-				diff = ( newTime - this.oldTime ) / 1000;
-				this.oldTime = newTime;
-
-				this.elapsedTime += diff;
-
-			}
-
-			return diff;
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 * @author WestLangley / http://github.com/WestLangley
-	 *
-	 * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
-	 *
-	 * The poles (phi) are at the positive and negative y axis.
-	 * The equator starts at positive z.
-	 */
-
-	function Spherical( radius, phi, theta ) {
-
-		this.radius = ( radius !== undefined ) ? radius : 1.0;
-		this.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole
-		this.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere
-
-		return this;
-
-	}
-
-	Object.assign( Spherical.prototype, {
-
-		set: function ( radius, phi, theta ) {
-
-			this.radius = radius;
-			this.phi = phi;
-			this.theta = theta;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( other ) {
-
-			this.radius = other.radius;
-			this.phi = other.phi;
-			this.theta = other.theta;
-
-			return this;
-
-		},
-
-		// restrict phi to be betwee EPS and PI-EPS
-		makeSafe: function () {
-
-			var EPS = 0.000001;
-			this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );
-
-			return this;
-
-		},
-
-		setFromVector3: function ( vec3 ) {
-
-			this.radius = vec3.length();
-
-			if ( this.radius === 0 ) {
-
-				this.theta = 0;
-				this.phi = 0;
-
-			} else {
-
-				this.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis
-				this.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle
-
-			}
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
-	 *
-	 */
-
-	function Cylindrical( radius, theta, y ) {
-
-		this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
-		this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
-		this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane
-
-		return this;
-
-	}
-
-	Object.assign( Cylindrical.prototype, {
-
-		set: function ( radius, theta, y ) {
-
-			this.radius = radius;
-			this.theta = theta;
-			this.y = y;
-
-			return this;
-
-		},
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( other ) {
-
-			this.radius = other.radius;
-			this.theta = other.theta;
-			this.y = other.y;
-
-			return this;
-
-		},
-
-		setFromVector3: function ( vec3 ) {
-
-			this.radius = Math.sqrt( vec3.x * vec3.x + vec3.z * vec3.z );
-			this.theta = Math.atan2( vec3.x, vec3.z );
-			this.y = vec3.y;
-
-			return this;
-
-		}
-
-	} );
-
-	/**
-	 * @author bhouston / http://clara.io
-	 */
-
-	function Box2( min, max ) {
-
-		this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
-		this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );
-
-	}
-
-	Object.assign( Box2.prototype, {
-
-		set: function ( min, max ) {
-
-			this.min.copy( min );
-			this.max.copy( max );
-
-			return this;
-
-		},
-
-		setFromPoints: function ( points ) {
-
-			this.makeEmpty();
-
-			for ( var i = 0, il = points.length; i < il; i ++ ) {
-
-				this.expandByPoint( points[ i ] );
-
-			}
-
-			return this;
-
-		},
-
-		setFromCenterAndSize: function () {
-
-			var v1 = new Vector2();
-
-			return function setFromCenterAndSize( center, size ) {
-
-				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
-				this.min.copy( center ).sub( halfSize );
-				this.max.copy( center ).add( halfSize );
-
-				return this;
-
-			};
-
-		}(),
-
-		clone: function () {
-
-			return new this.constructor().copy( this );
-
-		},
-
-		copy: function ( box ) {
-
-			this.min.copy( box.min );
-			this.max.copy( box.max );
-
-			return this;
-
-		},
-
-		makeEmpty: function () {
-
-			this.min.x = this.min.y = + Infinity;
-			this.max.x = this.max.y = - Infinity;
-
-			return this;
-
-		},
-
-		isEmpty: function () {
-
-			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
-
-			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );
-
-		},
-
-		getCenter: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector2();
-			return this.isEmpty() ? result.set( 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );
-
-		},
-
-		getSize: function ( optionalTarget ) {
-
-			var result = optionalTarget || new Vector2();
-			return this.isEmpty() ? result.set( 0, 0 ) : result.subVectors( this.max, this.min );
-
-		},
-
-		expandByPoint: function ( point ) {
-
-			this.min.min( point );
-			this.max.max( point );
-
-			return this;
-
-		},
-
-		expandByVector: function ( vector ) {
-
-			this.min.sub( vector );
-			this.max.add( vector );
-
-			return this;
-
-		},
-
-		expandByScalar: function ( scalar ) {
-
-			this.min.addScalar( - scalar );
-			this.max.addScalar( scalar );
-
-			return this;
-
-		},
-
-		containsPoint: function ( point ) {
-
-			return point.x < this.min.x || point.x > this.max.x ||
-				point.y < this.min.y || point.y > this.max.y ? false : true;
-
-		},
-
-		containsBox: function ( box ) {
-
-			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
-				this.min.y <= box.min.y && box.max.y <= this.max.y;
-
-		},
-
-		getParameter: function ( point, optionalTarget ) {
-
-			// This can potentially have a divide by zero if the box
-			// has a size dimension of 0.
-
-			var result = optionalTarget || new Vector2();
-
-			return result.set(
-				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
-				( point.y - this.min.y ) / ( this.max.y - this.min.y )
-			);
-
-		},
-
-		intersectsBox: function ( box ) {
-
-			// using 4 splitting planes to rule out intersections
-
-			return box.max.x < this.min.x || box.min.x > this.max.x ||
-				box.max.y < this.min.y || box.min.y > this.max.y ? false : true;
-
-		},
-
-		clampPoint: function ( point, optionalTarget ) {
-
-			var result = optionalTarget || new Vector2();
-			return result.copy( point ).clamp( this.min, this.max );
-
-		},
-
-		distanceToPoint: function () {
-
-			var v1 = new Vector2();
-
-			return function distanceToPoint( point ) {
-
-				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
-				return clampedPoint.sub( point ).length();
-
-			};
-
-		}(),
-
-		intersect: function ( box ) {
-
-			this.min.max( box.min );
-			this.max.min( box.max );
-
-			return this;
-
-		},
-
-		union: function ( box ) {
-
-			this.min.min( box.min );
-			this.max.max( box.max );
-
-			return this;
-
-		},
-
-		translate: function ( offset ) {
-
-			this.min.add( offset );
-			this.max.add( offset );
-
-			return this;
-
-		},
-
-		equals: function ( box ) {
-
-			return box.min.equals( this.min ) && box.max.equals( this.max );
-
-		}
-
-	} );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 */
-
-	function ImmediateRenderObject( material ) {
-
-		Object3D.call( this );
-
-		this.material = material;
-		this.render = function ( /* renderCallback */ ) {};
-
-	}
-
-	ImmediateRenderObject.prototype = Object.create( Object3D.prototype );
-	ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;
-
-	ImmediateRenderObject.prototype.isImmediateRenderObject = true;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function VertexNormalsHelper( object, size, hex, linewidth ) {
-
-		this.object = object;
-
-		this.size = ( size !== undefined ) ? size : 1;
-
-		var color = ( hex !== undefined ) ? hex : 0xff0000;
-
-		var width = ( linewidth !== undefined ) ? linewidth : 1;
-
-		//
-
-		var nNormals = 0;
-
-		var objGeometry = this.object.geometry;
-
-		if ( objGeometry && objGeometry.isGeometry ) {
-
-			nNormals = objGeometry.faces.length * 3;
-
-		} else if ( objGeometry && objGeometry.isBufferGeometry ) {
-
-			nNormals = objGeometry.attributes.normal.count;
-
-		}
-
-		//
-
-		var geometry = new BufferGeometry();
-
-		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
-
-		geometry.addAttribute( 'position', positions );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
-
-		//
-
-		this.matrixAutoUpdate = false;
-
-		this.update();
-
-	}
-
-	VertexNormalsHelper.prototype = Object.create( LineSegments.prototype );
-	VertexNormalsHelper.prototype.constructor = VertexNormalsHelper;
-
-	VertexNormalsHelper.prototype.update = ( function () {
-
-		var v1 = new Vector3();
-		var v2 = new Vector3();
-		var normalMatrix = new Matrix3();
-
-		return function update() {
-
-			var keys = [ 'a', 'b', 'c' ];
-
-			this.object.updateMatrixWorld( true );
-
-			normalMatrix.getNormalMatrix( this.object.matrixWorld );
-
-			var matrixWorld = this.object.matrixWorld;
-
-			var position = this.geometry.attributes.position;
-
-			//
-
-			var objGeometry = this.object.geometry;
-
-			if ( objGeometry && objGeometry.isGeometry ) {
-
-				var vertices = objGeometry.vertices;
-
-				var faces = objGeometry.faces;
-
-				var idx = 0;
-
-				for ( var i = 0, l = faces.length; i < l; i ++ ) {
-
-					var face = faces[ i ];
-
-					for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {
-
-						var vertex = vertices[ face[ keys[ j ] ] ];
-
-						var normal = face.vertexNormals[ j ];
-
-						v1.copy( vertex ).applyMatrix4( matrixWorld );
-
-						v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
-
-						position.setXYZ( idx, v1.x, v1.y, v1.z );
-
-						idx = idx + 1;
-
-						position.setXYZ( idx, v2.x, v2.y, v2.z );
-
-						idx = idx + 1;
-
-					}
-
-				}
-
-			} else if ( objGeometry && objGeometry.isBufferGeometry ) {
-
-				var objPos = objGeometry.attributes.position;
-
-				var objNorm = objGeometry.attributes.normal;
-
-				var idx = 0;
-
-				// for simplicity, ignore index and drawcalls, and render every normal
-
-				for ( var j = 0, jl = objPos.count; j < jl; j ++ ) {
-
-					v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );
-
-					v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );
-
-					v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
-
-					position.setXYZ( idx, v1.x, v1.y, v1.z );
-
-					idx = idx + 1;
-
-					position.setXYZ( idx, v2.x, v2.y, v2.z );
-
-					idx = idx + 1;
-
-				}
-
-			}
-
-			position.needsUpdate = true;
-
-		};
-
-	}() );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function SpotLightHelper( light, color ) {
-
-		Object3D.call( this );
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.matrix = light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.color = color;
-
-		var geometry = new BufferGeometry();
-
-		var positions = [
-			0, 0, 0, 	0, 0, 1,
-			0, 0, 0, 	1, 0, 1,
-			0, 0, 0,	- 1, 0, 1,
-			0, 0, 0, 	0, 1, 1,
-			0, 0, 0, 	0, - 1, 1
-		];
-
-		for ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {
-
-			var p1 = ( i / l ) * Math.PI * 2;
-			var p2 = ( j / l ) * Math.PI * 2;
-
-			positions.push(
-				Math.cos( p1 ), Math.sin( p1 ), 1,
-				Math.cos( p2 ), Math.sin( p2 ), 1
-			);
-
-		}
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
-
-		var material = new LineBasicMaterial( { fog: false } );
-
-		this.cone = new LineSegments( geometry, material );
-		this.add( this.cone );
-
-		this.update();
-
-	}
-
-	SpotLightHelper.prototype = Object.create( Object3D.prototype );
-	SpotLightHelper.prototype.constructor = SpotLightHelper;
-
-	SpotLightHelper.prototype.dispose = function () {
-
-		this.cone.geometry.dispose();
-		this.cone.material.dispose();
-
-	};
-
-	SpotLightHelper.prototype.update = function () {
-
-		var vector = new Vector3();
-		var vector2 = new Vector3();
-
-		return function update() {
-
-			this.light.updateMatrixWorld();
-
-			var coneLength = this.light.distance ? this.light.distance : 1000;
-			var coneWidth = coneLength * Math.tan( this.light.angle );
-
-			this.cone.scale.set( coneWidth, coneWidth, coneLength );
-
-			vector.setFromMatrixPosition( this.light.matrixWorld );
-			vector2.setFromMatrixPosition( this.light.target.matrixWorld );
-
-			this.cone.lookAt( vector2.sub( vector ) );
-
-			if ( this.color !== undefined ) {
-
-				this.cone.material.color.set( this.color );
-
-			} else {
-
-				this.cone.material.color.copy( this.light.color );
-
-			}
-
-		};
-
-	}();
-
-	/**
-	 * @author Sean Griffin / http://twitter.com/sgrif
-	 * @author Michael Guerrero / http://realitymeltdown.com
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author ikerr / http://verold.com
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function getBoneList( object ) {
-
-		var boneList = [];
-
-		if ( object && object.isBone ) {
-
-			boneList.push( object );
-
-		}
-
-		for ( var i = 0; i < object.children.length; i ++ ) {
-
-			boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );
-
-		}
-
-		return boneList;
-
-	}
-
-	function SkeletonHelper( object ) {
-
-		var bones = getBoneList( object );
-
-		var geometry = new BufferGeometry();
-
-		var vertices = [];
-		var colors = [];
-
-		var color1 = new Color( 0, 0, 1 );
-		var color2 = new Color( 0, 1, 0 );
-
-		for ( var i = 0; i < bones.length; i ++ ) {
-
-			var bone = bones[ i ];
-
-			if ( bone.parent && bone.parent.isBone ) {
-
-				vertices.push( 0, 0, 0 );
-				vertices.push( 0, 0, 0 );
-				colors.push( color1.r, color1.g, color1.b );
-				colors.push( color2.r, color2.g, color2.b );
-
-			}
-
-		}
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );
-
-		LineSegments.call( this, geometry, material );
-
-		this.root = object;
-		this.bones = bones;
-
-		this.matrix = object.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-	}
-
-	SkeletonHelper.prototype = Object.create( LineSegments.prototype );
-	SkeletonHelper.prototype.constructor = SkeletonHelper;
-
-	SkeletonHelper.prototype.updateMatrixWorld = function () {
-
-		var vector = new Vector3();
-
-		var boneMatrix = new Matrix4();
-		var matrixWorldInv = new Matrix4();
-
-		return function updateMatrixWorld( force ) {
-
-			var bones = this.bones;
-
-			var geometry = this.geometry;
-			var position = geometry.getAttribute( 'position' );
-
-			matrixWorldInv.getInverse( this.root.matrixWorld );
-
-			for ( var i = 0, j = 0; i < bones.length; i ++ ) {
-
-				var bone = bones[ i ];
-
-				if ( bone.parent && bone.parent.isBone ) {
-
-					boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );
-					vector.setFromMatrixPosition( boneMatrix );
-					position.setXYZ( j, vector.x, vector.y, vector.z );
-
-					boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );
-					vector.setFromMatrixPosition( boneMatrix );
-					position.setXYZ( j + 1, vector.x, vector.y, vector.z );
-
-					j += 2;
-
-				}
-
-			}
-
-			geometry.getAttribute( 'position' ).needsUpdate = true;
-
-			Object3D.prototype.updateMatrixWorld.call( this, force );
-
-		};
-
-	}();
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function PointLightHelper( light, sphereSize, color ) {
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.color = color;
-
-		var geometry = new SphereBufferGeometry( sphereSize, 4, 2 );
-		var material = new MeshBasicMaterial( { wireframe: true, fog: false } );
-
-		Mesh.call( this, geometry, material );
-
-		this.matrix = this.light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.update();
-
-
-		/*
-		var distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );
-		var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );
-
-		this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
-		this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );
-
-		var d = light.distance;
-
-		if ( d === 0.0 ) {
-
-			this.lightDistance.visible = false;
-
-		} else {
-
-			this.lightDistance.scale.set( d, d, d );
-
-		}
-
-		this.add( this.lightDistance );
-		*/
-
-	}
-
-	PointLightHelper.prototype = Object.create( Mesh.prototype );
-	PointLightHelper.prototype.constructor = PointLightHelper;
-
-	PointLightHelper.prototype.dispose = function () {
-
-		this.geometry.dispose();
-		this.material.dispose();
-
-	};
-
-	PointLightHelper.prototype.update = function () {
-
-		if ( this.color !== undefined ) {
-
-			this.material.color.set( this.color );
-
-		} else {
-
-			this.material.color.copy( this.light.color );
-
-		}
-
-		/*
-		var d = this.light.distance;
-
-		if ( d === 0.0 ) {
-
-			this.lightDistance.visible = false;
-
-		} else {
-
-			this.lightDistance.visible = true;
-			this.lightDistance.scale.set( d, d, d );
-
-		}
-		*/
-
-	};
-
-	/**
-	 * @author abelnation / http://github.com/abelnation
-	 * @author Mugen87 / http://github.com/Mugen87
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function RectAreaLightHelper( light, color ) {
-
-		Object3D.call( this );
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.matrix = light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.color = color;
-
-		var material = new LineBasicMaterial( { fog: false } );
-
-		var geometry = new BufferGeometry();
-
-		geometry.addAttribute( 'position', new BufferAttribute( new Float32Array( 5 * 3 ), 3 ) );
-
-		this.line = new Line( geometry, material );
-		this.add( this.line );
-
-
-		this.update();
-
-	}
-
-	RectAreaLightHelper.prototype = Object.create( Object3D.prototype );
-	RectAreaLightHelper.prototype.constructor = RectAreaLightHelper;
-
-	RectAreaLightHelper.prototype.dispose = function () {
-
-		this.children[ 0 ].geometry.dispose();
-		this.children[ 0 ].material.dispose();
-
-	};
-
-	RectAreaLightHelper.prototype.update = function () {
-
-		// calculate new dimensions of the helper
-
-		var hx = this.light.width * 0.5;
-		var hy = this.light.height * 0.5;
-
-		var position = this.line.geometry.attributes.position;
-		var array = position.array;
-
-		// update vertices
-
-		array[ 0 ] = hx; array[ 1 ] = - hy; array[ 2 ] = 0;
-		array[ 3 ] = hx; array[ 4 ] = hy; array[ 5 ] = 0;
-		array[ 6 ] = - hx; array[ 7 ] = hy; array[ 8 ] = 0;
-		array[ 9 ] = - hx; array[ 10 ] = - hy; array[ 11 ] = 0;
-		array[ 12 ] = hx; array[ 13 ] = - hy; array[ 14 ] = 0;
-
-		position.needsUpdate = true;
-
-		if ( this.color !== undefined ) {
-
-			this.line.material.color.set( this.color );
-
-		} else {
-
-			this.line.material.color.copy( this.light.color );
-
-		}
-
-	};
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 */
-
-	function HemisphereLightHelper( light, size, color ) {
-
-		Object3D.call( this );
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.matrix = light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.color = color;
-
-		var geometry = new OctahedronBufferGeometry( size );
-		geometry.rotateY( Math.PI * 0.5 );
-
-		this.material = new MeshBasicMaterial( { wireframe: true, fog: false } );
-		if ( this.color === undefined ) this.material.vertexColors = VertexColors;
-
-		var position = geometry.getAttribute( 'position' );
-		var colors = new Float32Array( position.count * 3 );
-
-		geometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );
-
-		this.add( new Mesh( geometry, this.material ) );
-
-		this.update();
-
-	}
-
-	HemisphereLightHelper.prototype = Object.create( Object3D.prototype );
-	HemisphereLightHelper.prototype.constructor = HemisphereLightHelper;
-
-	HemisphereLightHelper.prototype.dispose = function () {
-
-		this.children[ 0 ].geometry.dispose();
-		this.children[ 0 ].material.dispose();
-
-	};
-
-	HemisphereLightHelper.prototype.update = function () {
-
-		var vector = new Vector3();
-
-		var color1 = new Color();
-		var color2 = new Color();
-
-		return function update() {
-
-			var mesh = this.children[ 0 ];
-
-			if ( this.color !== undefined ) {
-
-				this.material.color.set( this.color );
-
-			} else {
-
-				var colors = mesh.geometry.getAttribute( 'color' );
-
-				color1.copy( this.light.color );
-				color2.copy( this.light.groundColor );
-
-				for ( var i = 0, l = colors.count; i < l; i ++ ) {
-
-					var color = ( i < ( l / 2 ) ) ? color1 : color2;
-
-					colors.setXYZ( i, color.r, color.g, color.b );
-
-				}
-
-				colors.needsUpdate = true;
-
-			}
-
-			mesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );
-
-		};
-
-	}();
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function GridHelper( size, divisions, color1, color2 ) {
-
-		size = size || 10;
-		divisions = divisions || 10;
-		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
-		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
-
-		var center = divisions / 2;
-		var step = size / divisions;
-		var halfSize = size / 2;
-
-		var vertices = [], colors = [];
-
-		for ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {
-
-			vertices.push( - halfSize, 0, k, halfSize, 0, k );
-			vertices.push( k, 0, - halfSize, k, 0, halfSize );
-
-			var color = i === center ? color1 : color2;
-
-			color.toArray( colors, j ); j += 3;
-			color.toArray( colors, j ); j += 3;
-			color.toArray( colors, j ); j += 3;
-			color.toArray( colors, j ); j += 3;
-
-		}
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
-
-		LineSegments.call( this, geometry, material );
-
-	}
-
-	GridHelper.prototype = Object.create( LineSegments.prototype );
-	GridHelper.prototype.constructor = GridHelper;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / http://github.com/Mugen87
-	 * @author Hectate / http://www.github.com/Hectate
-	 */
-
-	function PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {
-
-		radius = radius || 10;
-		radials = radials || 16;
-		circles = circles || 8;
-		divisions = divisions || 64;
-		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
-		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );
-
-		var vertices = [];
-		var colors = [];
-
-		var x, z;
-		var v, i, j, r, color;
-
-		// create the radials
-
-		for ( i = 0; i <= radials; i ++ ) {
-
-			v = ( i / radials ) * ( Math.PI * 2 );
-
-			x = Math.sin( v ) * radius;
-			z = Math.cos( v ) * radius;
-
-			vertices.push( 0, 0, 0 );
-			vertices.push( x, 0, z );
-
-			color = ( i & 1 ) ? color1 : color2;
-
-			colors.push( color.r, color.g, color.b );
-			colors.push( color.r, color.g, color.b );
-
-		}
-
-		// create the circles
-
-		for ( i = 0; i <= circles; i ++ ) {
-
-			color = ( i & 1 ) ? color1 : color2;
-
-			r = radius - ( radius / circles * i );
-
-			for ( j = 0; j < divisions; j ++ ) {
-
-				// first vertex
-
-				v = ( j / divisions ) * ( Math.PI * 2 );
-
-				x = Math.sin( v ) * r;
-				z = Math.cos( v ) * r;
-
-				vertices.push( x, 0, z );
-				colors.push( color.r, color.g, color.b );
-
-				// second vertex
-
-				v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );
-
-				x = Math.sin( v ) * r;
-				z = Math.cos( v ) * r;
-
-				vertices.push( x, 0, z );
-				colors.push( color.r, color.g, color.b );
-
-			}
-
-		}
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
-
-		LineSegments.call( this, geometry, material );
-
-	}
-
-	PolarGridHelper.prototype = Object.create( LineSegments.prototype );
-	PolarGridHelper.prototype.constructor = PolarGridHelper;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function FaceNormalsHelper( object, size, hex, linewidth ) {
-
-		// FaceNormalsHelper only supports THREE.Geometry
-
-		this.object = object;
-
-		this.size = ( size !== undefined ) ? size : 1;
-
-		var color = ( hex !== undefined ) ? hex : 0xffff00;
-
-		var width = ( linewidth !== undefined ) ? linewidth : 1;
-
-		//
-
-		var nNormals = 0;
-
-		var objGeometry = this.object.geometry;
-
-		if ( objGeometry && objGeometry.isGeometry ) {
-
-			nNormals = objGeometry.faces.length;
-
-		} else {
-
-			console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );
-
-		}
-
-		//
-
-		var geometry = new BufferGeometry();
-
-		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );
-
-		geometry.addAttribute( 'position', positions );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );
-
-		//
-
-		this.matrixAutoUpdate = false;
-		this.update();
-
-	}
-
-	FaceNormalsHelper.prototype = Object.create( LineSegments.prototype );
-	FaceNormalsHelper.prototype.constructor = FaceNormalsHelper;
-
-	FaceNormalsHelper.prototype.update = ( function () {
-
-		var v1 = new Vector3();
-		var v2 = new Vector3();
-		var normalMatrix = new Matrix3();
-
-		return function update() {
-
-			this.object.updateMatrixWorld( true );
-
-			normalMatrix.getNormalMatrix( this.object.matrixWorld );
-
-			var matrixWorld = this.object.matrixWorld;
-
-			var position = this.geometry.attributes.position;
-
-			//
-
-			var objGeometry = this.object.geometry;
-
-			var vertices = objGeometry.vertices;
-
-			var faces = objGeometry.faces;
-
-			var idx = 0;
-
-			for ( var i = 0, l = faces.length; i < l; i ++ ) {
-
-				var face = faces[ i ];
-
-				var normal = face.normal;
-
-				v1.copy( vertices[ face.a ] )
-					.add( vertices[ face.b ] )
-					.add( vertices[ face.c ] )
-					.divideScalar( 3 )
-					.applyMatrix4( matrixWorld );
-
-				v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );
-
-				position.setXYZ( idx, v1.x, v1.y, v1.z );
-
-				idx = idx + 1;
-
-				position.setXYZ( idx, v2.x, v2.y, v2.z );
-
-				idx = idx + 1;
-
-			}
-
-			position.needsUpdate = true;
-
-		};
-
-	}() );
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function DirectionalLightHelper( light, size, color ) {
-
-		Object3D.call( this );
-
-		this.light = light;
-		this.light.updateMatrixWorld();
-
-		this.matrix = light.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.color = color;
-
-		if ( size === undefined ) size = 1;
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( [
-			- size, size, 0,
-			size, size, 0,
-			size, - size, 0,
-			- size, - size, 0,
-			- size, size, 0
-		], 3 ) );
-
-		var material = new LineBasicMaterial( { fog: false } );
-
-		this.lightPlane = new Line( geometry, material );
-		this.add( this.lightPlane );
-
-		geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );
-
-		this.targetLine = new Line( geometry, material );
-		this.add( this.targetLine );
-
-		this.update();
-
-	}
-
-	DirectionalLightHelper.prototype = Object.create( Object3D.prototype );
-	DirectionalLightHelper.prototype.constructor = DirectionalLightHelper;
-
-	DirectionalLightHelper.prototype.dispose = function () {
-
-		this.lightPlane.geometry.dispose();
-		this.lightPlane.material.dispose();
-		this.targetLine.geometry.dispose();
-		this.targetLine.material.dispose();
-
-	};
-
-	DirectionalLightHelper.prototype.update = function () {
-
-		var v1 = new Vector3();
-		var v2 = new Vector3();
-		var v3 = new Vector3();
-
-		return function update() {
-
-			v1.setFromMatrixPosition( this.light.matrixWorld );
-			v2.setFromMatrixPosition( this.light.target.matrixWorld );
-			v3.subVectors( v2, v1 );
-
-			this.lightPlane.lookAt( v3 );
-
-			if ( this.color !== undefined ) {
-
-				this.lightPlane.material.color.set( this.color );
-				this.targetLine.material.color.set( this.color );
-
-			} else {
-
-				this.lightPlane.material.color.copy( this.light.color );
-				this.targetLine.material.color.copy( this.light.color );
-
-			}
-
-			this.targetLine.lookAt( v3 );
-			this.targetLine.scale.z = v3.length();
-
-		};
-
-	}();
-
-	/**
-	 * @author alteredq / http://alteredqualia.com/
-	 * @author Mugen87 / https://github.com/Mugen87
-	 *
-	 *	- shows frustum, line of sight and up of the camera
-	 *	- suitable for fast updates
-	 * 	- based on frustum visualization in lightgl.js shadowmap example
-	 *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
-	 */
-
-	function CameraHelper( camera ) {
-
-		var geometry = new BufferGeometry();
-		var material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );
-
-		var vertices = [];
-		var colors = [];
-
-		var pointMap = {};
-
-		// colors
-
-		var colorFrustum = new Color( 0xffaa00 );
-		var colorCone = new Color( 0xff0000 );
-		var colorUp = new Color( 0x00aaff );
-		var colorTarget = new Color( 0xffffff );
-		var colorCross = new Color( 0x333333 );
-
-		// near
-
-		addLine( 'n1', 'n2', colorFrustum );
-		addLine( 'n2', 'n4', colorFrustum );
-		addLine( 'n4', 'n3', colorFrustum );
-		addLine( 'n3', 'n1', colorFrustum );
-
-		// far
-
-		addLine( 'f1', 'f2', colorFrustum );
-		addLine( 'f2', 'f4', colorFrustum );
-		addLine( 'f4', 'f3', colorFrustum );
-		addLine( 'f3', 'f1', colorFrustum );
-
-		// sides
-
-		addLine( 'n1', 'f1', colorFrustum );
-		addLine( 'n2', 'f2', colorFrustum );
-		addLine( 'n3', 'f3', colorFrustum );
-		addLine( 'n4', 'f4', colorFrustum );
-
-		// cone
-
-		addLine( 'p', 'n1', colorCone );
-		addLine( 'p', 'n2', colorCone );
-		addLine( 'p', 'n3', colorCone );
-		addLine( 'p', 'n4', colorCone );
-
-		// up
-
-		addLine( 'u1', 'u2', colorUp );
-		addLine( 'u2', 'u3', colorUp );
-		addLine( 'u3', 'u1', colorUp );
-
-		// target
-
-		addLine( 'c', 't', colorTarget );
-		addLine( 'p', 'c', colorCross );
-
-		// cross
-
-		addLine( 'cn1', 'cn2', colorCross );
-		addLine( 'cn3', 'cn4', colorCross );
-
-		addLine( 'cf1', 'cf2', colorCross );
-		addLine( 'cf3', 'cf4', colorCross );
-
-		function addLine( a, b, color ) {
-
-			addPoint( a, color );
-			addPoint( b, color );
-
-		}
-
-		function addPoint( id, color ) {
-
-			vertices.push( 0, 0, 0 );
-			colors.push( color.r, color.g, color.b );
-
-			if ( pointMap[ id ] === undefined ) {
-
-				pointMap[ id ] = [];
-
-			}
-
-			pointMap[ id ].push( ( vertices.length / 3 ) - 1 );
-
-		}
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		LineSegments.call( this, geometry, material );
-
-		this.camera = camera;
-		if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();
-
-		this.matrix = camera.matrixWorld;
-		this.matrixAutoUpdate = false;
-
-		this.pointMap = pointMap;
-
-		this.update();
-
-	}
-
-	CameraHelper.prototype = Object.create( LineSegments.prototype );
-	CameraHelper.prototype.constructor = CameraHelper;
-
-	CameraHelper.prototype.update = function () {
-
-		var geometry, pointMap;
-
-		var vector = new Vector3();
-		var camera = new Camera();
-
-		function setPoint( point, x, y, z ) {
-
-			vector.set( x, y, z ).unproject( camera );
-
-			var points = pointMap[ point ];
-
-			if ( points !== undefined ) {
-
-				var position = geometry.getAttribute( 'position' );
-
-				for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-					position.setXYZ( points[ i ], vector.x, vector.y, vector.z );
-
-				}
-
-			}
-
-		}
-
-		return function update() {
-
-			geometry = this.geometry;
-			pointMap = this.pointMap;
-
-			var w = 1, h = 1;
-
-			// we need just camera projection matrix
-			// world matrix must be identity
-
-			camera.projectionMatrix.copy( this.camera.projectionMatrix );
-
-			// center / target
-
-			setPoint( 'c', 0, 0, - 1 );
-			setPoint( 't', 0, 0, 1 );
-
-			// near
-
-			setPoint( 'n1', - w, - h, - 1 );
-			setPoint( 'n2', w, - h, - 1 );
-			setPoint( 'n3', - w, h, - 1 );
-			setPoint( 'n4', w, h, - 1 );
-
-			// far
-
-			setPoint( 'f1', - w, - h, 1 );
-			setPoint( 'f2', w, - h, 1 );
-			setPoint( 'f3', - w, h, 1 );
-			setPoint( 'f4', w, h, 1 );
-
-			// up
-
-			setPoint( 'u1', w * 0.7, h * 1.1, - 1 );
-			setPoint( 'u2', - w * 0.7, h * 1.1, - 1 );
-			setPoint( 'u3', 0, h * 2, - 1 );
-
-			// cross
-
-			setPoint( 'cf1', - w, 0, 1 );
-			setPoint( 'cf2', w, 0, 1 );
-			setPoint( 'cf3', 0, - h, 1 );
-			setPoint( 'cf4', 0, h, 1 );
-
-			setPoint( 'cn1', - w, 0, - 1 );
-			setPoint( 'cn2', w, 0, - 1 );
-			setPoint( 'cn3', 0, - h, - 1 );
-			setPoint( 'cn4', 0, h, - 1 );
-
-			geometry.getAttribute( 'position' ).needsUpdate = true;
-
-		};
-
-	}();
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 * @author Mugen87 / http://github.com/Mugen87
-	 */
-
-	function BoxHelper( object, color ) {
-
-		this.object = object;
-
-		if ( color === undefined ) color = 0xffff00;
-
-		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
-		var positions = new Float32Array( 8 * 3 );
-
-		var geometry = new BufferGeometry();
-		geometry.setIndex( new BufferAttribute( indices, 1 ) );
-		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
-
-		this.matrixAutoUpdate = false;
-
-		this.update();
-
-	}
-
-	BoxHelper.prototype = Object.create( LineSegments.prototype );
-	BoxHelper.prototype.constructor = BoxHelper;
-
-	BoxHelper.prototype.update = ( function () {
-
-		var box = new Box3();
-
-		return function update( object ) {
-
-			if ( object !== undefined ) {
-
-				console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );
-
-			}
-
-			if ( this.object !== undefined ) {
-
-				box.setFromObject( this.object );
-
-			}
-
-			if ( box.isEmpty() ) return;
-
-			var min = box.min;
-			var max = box.max;
-
-			/*
-			  5____4
-			1/___0/|
-			| 6__|_7
-			2/___3/
-
-			0: max.x, max.y, max.z
-			1: min.x, max.y, max.z
-			2: min.x, min.y, max.z
-			3: max.x, min.y, max.z
-			4: max.x, max.y, min.z
-			5: min.x, max.y, min.z
-			6: min.x, min.y, min.z
-			7: max.x, min.y, min.z
-			*/
-
-			var position = this.geometry.attributes.position;
-			var array = position.array;
-
-			array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;
-			array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;
-			array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;
-			array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
-			array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
-			array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
-			array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
-			array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;
-
-			position.needsUpdate = true;
-
-			this.geometry.computeBoundingSphere();
-
-		};
-
-	} )();
-
-	BoxHelper.prototype.setFromObject = function ( object ) {
-
-		this.object = object;
-		this.update();
-
-		return this;
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function Box3Helper( box, hex ) {
-
-		this.type = 'Box3Helper';
-
-		this.box = box;
-
-		var color = ( hex !== undefined ) ? hex : 0xffff00;
-
-		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
-
-		var positions = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, - 1, - 1, 1, - 1, - 1, - 1, - 1, 1, - 1, - 1 ];
-
-		var geometry = new BufferGeometry();
-
-		geometry.setIndex( new BufferAttribute( indices, 1 ) );
-
-		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
-
-		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );
-
-		this.geometry.computeBoundingSphere();
-
-	}
-
-	Box3Helper.prototype = Object.create( LineSegments.prototype );
-	Box3Helper.prototype.constructor = Box3Helper;
-
-	Box3Helper.prototype.updateMatrixWorld = function ( force ) {
-
-		var box = this.box;
-
-		if ( box.isEmpty() ) return;
-
-		box.getCenter( this.position );
-
-		box.getSize( this.scale );
-
-		this.scale.multiplyScalar( 0.5 );
-
-		Object3D.prototype.updateMatrixWorld.call( this, force );
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 */
-
-	function PlaneHelper( plane, size, hex ) {
-
-		this.type = 'PlaneHelper';
-
-		this.plane = plane;
-
-		this.size = ( size === undefined ) ? 1 : size;
-
-		var color = ( hex !== undefined ) ? hex : 0xffff00;
-
-		var positions = [ 1, - 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, - 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 ];
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );
-		geometry.computeBoundingSphere();
-
-		Line.call( this, geometry, new LineBasicMaterial( { color: color } ) );
-
-		//
-
-		var positions2 = [ 1, 1, 1, - 1, 1, 1, - 1, - 1, 1, 1, 1, 1, - 1, - 1, 1, 1, - 1, 1 ];
-
-		var geometry2 = new BufferGeometry();
-		geometry2.addAttribute( 'position', new Float32BufferAttribute( positions2, 3 ) );
-		geometry2.computeBoundingSphere();
-
-		this.add( new Mesh( geometry2, new MeshBasicMaterial( { color: color, opacity: 0.2, transparent: true, depthWrite: false } ) ) );
-
-	}
-
-	PlaneHelper.prototype = Object.create( Line.prototype );
-	PlaneHelper.prototype.constructor = PlaneHelper;
-
-	PlaneHelper.prototype.updateMatrixWorld = function ( force ) {
-
-		var scale = - this.plane.constant;
-
-		if ( Math.abs( scale ) < 1e-8 ) scale = 1e-8; // sign does not matter
-
-		this.scale.set( 0.5 * this.size, 0.5 * this.size, scale );
-
-		this.lookAt( this.plane.normal );
-
-		Object3D.prototype.updateMatrixWorld.call( this, force );
-
-	};
-
-	/**
-	 * @author WestLangley / http://github.com/WestLangley
-	 * @author zz85 / http://github.com/zz85
-	 * @author bhouston / http://clara.io
-	 *
-	 * Creates an arrow for visualizing directions
-	 *
-	 * Parameters:
-	 *  dir - Vector3
-	 *  origin - Vector3
-	 *  length - Number
-	 *  color - color in hex value
-	 *  headLength - Number
-	 *  headWidth - Number
-	 */
-
-	var lineGeometry;
-	var coneGeometry;
-
-	function ArrowHelper( dir, origin, length, color, headLength, headWidth ) {
-
-		// dir is assumed to be normalized
-
-		Object3D.call( this );
-
-		if ( color === undefined ) color = 0xffff00;
-		if ( length === undefined ) length = 1;
-		if ( headLength === undefined ) headLength = 0.2 * length;
-		if ( headWidth === undefined ) headWidth = 0.2 * headLength;
-
-		if ( lineGeometry === undefined ) {
-
-			lineGeometry = new BufferGeometry();
-			lineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );
-
-			coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );
-			coneGeometry.translate( 0, - 0.5, 0 );
-
-		}
-
-		this.position.copy( origin );
-
-		this.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );
-		this.line.matrixAutoUpdate = false;
-		this.add( this.line );
-
-		this.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );
-		this.cone.matrixAutoUpdate = false;
-		this.add( this.cone );
-
-		this.setDirection( dir );
-		this.setLength( length, headLength, headWidth );
-
-	}
-
-	ArrowHelper.prototype = Object.create( Object3D.prototype );
-	ArrowHelper.prototype.constructor = ArrowHelper;
-
-	ArrowHelper.prototype.setDirection = ( function () {
-
-		var axis = new Vector3();
-		var radians;
-
-		return function setDirection( dir ) {
-
-			// dir is assumed to be normalized
-
-			if ( dir.y > 0.99999 ) {
-
-				this.quaternion.set( 0, 0, 0, 1 );
-
-			} else if ( dir.y < - 0.99999 ) {
-
-				this.quaternion.set( 1, 0, 0, 0 );
-
-			} else {
-
-				axis.set( dir.z, 0, - dir.x ).normalize();
-
-				radians = Math.acos( dir.y );
-
-				this.quaternion.setFromAxisAngle( axis, radians );
-
-			}
-
-		};
-
-	}() );
-
-	ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {
-
-		if ( headLength === undefined ) headLength = 0.2 * length;
-		if ( headWidth === undefined ) headWidth = 0.2 * headLength;
-
-		this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );
-		this.line.updateMatrix();
-
-		this.cone.scale.set( headWidth, headLength, headWidth );
-		this.cone.position.y = length;
-		this.cone.updateMatrix();
-
-	};
-
-	ArrowHelper.prototype.setColor = function ( color ) {
-
-		this.line.material.color.copy( color );
-		this.cone.material.color.copy( color );
-
-	};
-
-	/**
-	 * @author sroucheray / http://sroucheray.org/
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function AxesHelper( size ) {
-
-		size = size || 1;
-
-		var vertices = [
-			0, 0, 0,	size, 0, 0,
-			0, 0, 0,	0, size, 0,
-			0, 0, 0,	0, 0, size
-		];
-
-		var colors = [
-			1, 0, 0,	1, 0.6, 0,
-			0, 1, 0,	0.6, 1, 0,
-			0, 0, 1,	0, 0.6, 1
-		];
-
-		var geometry = new BufferGeometry();
-		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
-		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );
-
-		var material = new LineBasicMaterial( { vertexColors: VertexColors } );
-
-		LineSegments.call( this, geometry, material );
-
-	}
-
-	AxesHelper.prototype = Object.create( LineSegments.prototype );
-	AxesHelper.prototype.constructor = AxesHelper;
-
-	/**
-	 * @author mrdoob / http://mrdoob.com/
-	 */
-
-	function Face4( a, b, c, d, normal, color, materialIndex ) {
-
-		console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );
-		return new Face3( a, b, c, normal, color, materialIndex );
-
-	}
-
-	var LineStrip = 0;
-
-	var LinePieces = 1;
-
-	function MeshFaceMaterial( materials ) {
-
-		console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );
-		return materials;
-
-	}
-
-	function MultiMaterial( materials ) {
-
-		if ( materials === undefined ) materials = [];
-
-		console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );
-		materials.isMultiMaterial = true;
-		materials.materials = materials;
-		materials.clone = function () {
-
-			return materials.slice();
-
-		};
-		return materials;
-
-	}
-
-	function PointCloud( geometry, material ) {
-
-		console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
-		return new Points( geometry, material );
-
-	}
-
-	function Particle( material ) {
-
-		console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );
-		return new Sprite( material );
-
-	}
-
-	function ParticleSystem( geometry, material ) {
-
-		console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
-		return new Points( geometry, material );
-
-	}
-
-	function PointCloudMaterial( parameters ) {
-
-		console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
-		return new PointsMaterial( parameters );
-
-	}
-
-	function ParticleBasicMaterial( parameters ) {
-
-		console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
-		return new PointsMaterial( parameters );
-
-	}
-
-	function ParticleSystemMaterial( parameters ) {
-
-		console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
-		return new PointsMaterial( parameters );
-
-	}
-
-	function Vertex( x, y, z ) {
-
-		console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );
-		return new Vector3( x, y, z );
-
-	}
-
-	//
-
-	function DynamicBufferAttribute( array, itemSize ) {
-
-		console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );
-		return new BufferAttribute( array, itemSize ).setDynamic( true );
-
-	}
-
-	function Int8Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );
-		return new Int8BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint8Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );
-		return new Uint8BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint8ClampedAttribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );
-		return new Uint8ClampedBufferAttribute( array, itemSize );
-
-	}
-
-	function Int16Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );
-		return new Int16BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint16Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );
-		return new Uint16BufferAttribute( array, itemSize );
-
-	}
-
-	function Int32Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );
-		return new Int32BufferAttribute( array, itemSize );
-
-	}
-
-	function Uint32Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );
-		return new Uint32BufferAttribute( array, itemSize );
-
-	}
-
-	function Float32Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );
-		return new Float32BufferAttribute( array, itemSize );
-
-	}
-
-	function Float64Attribute( array, itemSize ) {
-
-		console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );
-		return new Float64BufferAttribute( array, itemSize );
-
-	}
-
-	//
-
-	Curve.create = function ( construct, getPoint ) {
-
-		console.log( 'THREE.Curve.create() has been deprecated' );
-
-		construct.prototype = Object.create( Curve.prototype );
-		construct.prototype.constructor = construct;
-		construct.prototype.getPoint = getPoint;
-
-		return construct;
-
-	};
-
-	//
-
-	Object.assign( CurvePath.prototype, {
-
-		createPointsGeometry: function ( divisions ) {
-
-			console.warn( 'THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
-
-			// generate geometry from path points (for Line or Points objects)
-
-			var pts = this.getPoints( divisions );
-			return this.createGeometry( pts );
-
-		},
-
-		createSpacedPointsGeometry: function ( divisions ) {
-
-			console.warn( 'THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
-
-			// generate geometry from equidistant sampling along the path
-
-			var pts = this.getSpacedPoints( divisions );
-			return this.createGeometry( pts );
-
-		},
-
-		createGeometry: function ( points ) {
-
-			console.warn( 'THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.' );
-
-			var geometry = new Geometry();
-
-			for ( var i = 0, l = points.length; i < l; i ++ ) {
-
-				var point = points[ i ];
-				geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );
-
-			}
-
-			return geometry;
-
-		}
-
-	} );
-
-	//
-
-	Object.assign( Path.prototype, {
-
-		fromPoints: function ( points ) {
-
-			console.warn( 'THREE.Path: .fromPoints() has been renamed to .setFromPoints().' );
-			this.setFromPoints( points );
-
-		}
-
-	} );
-
-	//
-
-	function ClosedSplineCurve3( points ) {
-
-		console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
-
-		CatmullRomCurve3.call( this, points );
-		this.type = 'catmullrom';
-		this.closed = true;
-
-	}
-
-	ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
-
-	//
-
-	function SplineCurve3( points ) {
-
-		console.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );
-
-		CatmullRomCurve3.call( this, points );
-		this.type = 'catmullrom';
-
-	}
-
-	SplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );
-
-	//
-
-	function Spline( points ) {
-
-		console.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );
-
-		CatmullRomCurve3.call( this, points );
-		this.type = 'catmullrom';
-
-	}
-
-	Spline.prototype = Object.create( CatmullRomCurve3.prototype );
-
-	Object.assign( Spline.prototype, {
-
-		initFromArray: function ( /* a */ ) {
-
-			console.error( 'THREE.Spline: .initFromArray() has been removed.' );
-
-		},
-		getControlPointsArray: function ( /* optionalTarget */ ) {
-
-			console.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );
-
-		},
-		reparametrizeByArcLength: function ( /* samplingCoef */ ) {
-
-			console.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );
-
-		}
-
-	} );
-
-	//
-
-	function AxisHelper( size ) {
-
-		console.warn( 'THREE.AxisHelper has been renamed to THREE.AxesHelper.' );
-		return new AxesHelper( size );
-
-	}
-
-	function BoundingBoxHelper( object, color ) {
-
-		console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );
-		return new BoxHelper( object, color );
-
-	}
-
-	function EdgesHelper( object, hex ) {
-
-		console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );
-		return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
-
-	}
-
-	GridHelper.prototype.setColors = function () {
-
-		console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );
-
-	};
-
-	SkeletonHelper.prototype.update = function () {
-
-		console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );
-
-	};
-
-	function WireframeHelper( object, hex ) {
-
-		console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );
-		return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );
-
-	}
-
-	//
-
-	Object.assign( Loader.prototype, {
-
-		extractUrlBase: function ( url ) {
-
-			console.warn( 'THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.' );
-			return LoaderUtils.extractUrlBase( url );
-
-		}
-
-	} );
-
-	function XHRLoader( manager ) {
-
-		console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );
-		return new FileLoader( manager );
-
-	}
-
-	function BinaryTextureLoader( manager ) {
-
-		console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );
-		return new DataTextureLoader( manager );
-
-	}
-
-	//
-
-	Object.assign( Box2.prototype, {
-
-		center: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );
-			return this.getCenter( optionalTarget );
-
-		},
-		empty: function () {
-
-			console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
-			return this.isEmpty();
-
-		},
-		isIntersectionBox: function ( box ) {
-
-			console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
-			return this.intersectsBox( box );
-
-		},
-		size: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );
-			return this.getSize( optionalTarget );
-
-		}
-	} );
-
-	Object.assign( Box3.prototype, {
-
-		center: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );
-			return this.getCenter( optionalTarget );
-
-		},
-		empty: function () {
-
-			console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
-			return this.isEmpty();
-
-		},
-		isIntersectionBox: function ( box ) {
-
-			console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
-			return this.intersectsBox( box );
-
-		},
-		isIntersectionSphere: function ( sphere ) {
-
-			console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
-			return this.intersectsSphere( sphere );
-
-		},
-		size: function ( optionalTarget ) {
-
-			console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );
-			return this.getSize( optionalTarget );
-
-		}
-	} );
-
-	Line3.prototype.center = function ( optionalTarget ) {
-
-		console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );
-		return this.getCenter( optionalTarget );
-
-	};
-
-	Object.assign( _Math, {
-
-		random16: function () {
-
-			console.warn( 'THREE.Math: .random16() has been deprecated. Use Math.random() instead.' );
-			return Math.random();
-
-		},
-
-		nearestPowerOfTwo: function ( value ) {
-
-			console.warn( 'THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().' );
-			return _Math.floorPowerOfTwo( value );
-
-		},
-
-		nextPowerOfTwo: function ( value ) {
-
-			console.warn( 'THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().' );
-			return _Math.ceilPowerOfTwo( value );
-
-		}
-
-	} );
-
-	Object.assign( Matrix3.prototype, {
-
-		flattenToArrayOffset: function ( array, offset ) {
-
-			console.warn( "THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
-			return this.toArray( array, offset );
-
-		},
-		multiplyVector3: function ( vector ) {
-
-			console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
-			return vector.applyMatrix3( this );
-
-		},
-		multiplyVector3Array: function ( /* a */ ) {
-
-			console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.' );
-
-		},
-		applyToBuffer: function ( buffer /*, offset, length */ ) {
-
-			console.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
-			return this.applyToBufferAttribute( buffer );
-
-		},
-		applyToVector3Array: function ( /* array, offset, length */ ) {
-
-			console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );
-
-		}
-
-	} );
-
-	Object.assign( Matrix4.prototype, {
-
-		extractPosition: function ( m ) {
-
-			console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
-			return this.copyPosition( m );
-
-		},
-		flattenToArrayOffset: function ( array, offset ) {
-
-			console.warn( "THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
-			return this.toArray( array, offset );
-
-		},
-		getPosition: function () {
-
-			var v1;
-
-			return function getPosition() {
-
-				if ( v1 === undefined ) v1 = new Vector3();
-				console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );
-				return v1.setFromMatrixColumn( this, 3 );
-
-			};
-
-		}(),
-		setRotationFromQuaternion: function ( q ) {
-
-			console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
-			return this.makeRotationFromQuaternion( q );
-
-		},
-		multiplyToArray: function () {
-
-			console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );
-
-		},
-		multiplyVector3: function ( vector ) {
-
-			console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
-			return vector.applyMatrix4( this );
-
-		},
-		multiplyVector4: function ( vector ) {
-
-			console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
-			return vector.applyMatrix4( this );
-
-		},
-		multiplyVector3Array: function ( /* a */ ) {
-
-			console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.' );
-
-		},
-		rotateAxis: function ( v ) {
-
-			console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
-			v.transformDirection( this );
-
-		},
-		crossVector: function ( vector ) {
-
-			console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
-			return vector.applyMatrix4( this );
-
-		},
-		translate: function () {
-
-			console.error( 'THREE.Matrix4: .translate() has been removed.' );
-
-		},
-		rotateX: function () {
-
-			console.error( 'THREE.Matrix4: .rotateX() has been removed.' );
-
-		},
-		rotateY: function () {
-
-			console.error( 'THREE.Matrix4: .rotateY() has been removed.' );
-
-		},
-		rotateZ: function () {
-
-			console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );
-
-		},
-		rotateByAxis: function () {
-
-			console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );
-
-		},
-		applyToBuffer: function ( buffer /*, offset, length */ ) {
-
-			console.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
-			return this.applyToBufferAttribute( buffer );
-
-		},
-		applyToVector3Array: function ( /* array, offset, length */ ) {
-
-			console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );
-
-		},
-		makeFrustum: function ( left, right, bottom, top, near, far ) {
-
-			console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );
-			return this.makePerspective( left, right, top, bottom, near, far );
-
-		}
-
-	} );
-
-	Plane.prototype.isIntersectionLine = function ( line ) {
-
-		console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
-		return this.intersectsLine( line );
-
-	};
-
-	Quaternion.prototype.multiplyVector3 = function ( vector ) {
-
-		console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
-		return vector.applyQuaternion( this );
-
-	};
-
-	Object.assign( Ray.prototype, {
-
-		isIntersectionBox: function ( box ) {
-
-			console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
-			return this.intersectsBox( box );
-
-		},
-		isIntersectionPlane: function ( plane ) {
-
-			console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
-			return this.intersectsPlane( plane );
-
-		},
-		isIntersectionSphere: function ( sphere ) {
-
-			console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
-			return this.intersectsSphere( sphere );
-
-		}
-
-	} );
-
-	Object.assign( Shape.prototype, {
-
-		extractAllPoints: function ( divisions ) {
-
-			console.warn( 'THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.' );
-			return this.extractPoints( divisions );
-
-		},
-		extrude: function ( options ) {
-
-			console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );
-			return new ExtrudeGeometry( this, options );
-
-		},
-		makeGeometry: function ( options ) {
-
-			console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );
-			return new ShapeGeometry( this, options );
-
-		}
-
-	} );
-
-	Object.assign( Vector2.prototype, {
-
-		fromAttribute: function ( attribute, index, offset ) {
-
-			console.warn( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );
-			return this.fromBufferAttribute( attribute, index, offset );
-
-		},
-		distanceToManhattan: function ( v ) {
-
-			console.warn( 'THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
-			return this.manhattanDistanceTo( v );
-
-		},
-		lengthManhattan: function () {
-
-			console.warn( 'THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().' );
-			return this.manhattanLength();
-
-		}
-
-	} );
-
-	Object.assign( Vector3.prototype, {
-
-		setEulerFromRotationMatrix: function () {
-
-			console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );
-
-		},
-		setEulerFromQuaternion: function () {
-
-			console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );
-
-		},
-		getPositionFromMatrix: function ( m ) {
-
-			console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
-			return this.setFromMatrixPosition( m );
-
-		},
-		getScaleFromMatrix: function ( m ) {
-
-			console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
-			return this.setFromMatrixScale( m );
-
-		},
-		getColumnFromMatrix: function ( index, matrix ) {
-
-			console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
-			return this.setFromMatrixColumn( matrix, index );
-
-		},
-		applyProjection: function ( m ) {
-
-			console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );
-			return this.applyMatrix4( m );
-
-		},
-		fromAttribute: function ( attribute, index, offset ) {
-
-			console.warn( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );
-			return this.fromBufferAttribute( attribute, index, offset );
-
-		},
-		distanceToManhattan: function ( v ) {
-
-			console.warn( 'THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().' );
-			return this.manhattanDistanceTo( v );
-
-		},
-		lengthManhattan: function () {
-
-			console.warn( 'THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().' );
-			return this.manhattanLength();
-
-		}
-
-	} );
-
-	Object.assign( Vector4.prototype, {
-
-		fromAttribute: function ( attribute, index, offset ) {
-
-			console.warn( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );
-			return this.fromBufferAttribute( attribute, index, offset );
-
-		},
-		lengthManhattan: function () {
-
-			console.warn( 'THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().' );
-			return this.manhattanLength();
-
-		}
-
-	} );
-
-	//
-
-	Object.assign( Geometry.prototype, {
-
-		computeTangents: function () {
-
-			console.error( 'THREE.Geometry: .computeTangents() has been removed.' );
-
-		},
-		computeLineDistances: function () {
-
-			console.error( 'THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.' );
-
-		}
-
-	} );
-
-	Object.assign( Object3D.prototype, {
-
-		getChildByName: function ( name ) {
-
-			console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
-			return this.getObjectByName( name );
-
-		},
-		renderDepth: function () {
-
-			console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );
-
-		},
-		translate: function ( distance, axis ) {
-
-			console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
-			return this.translateOnAxis( axis, distance );
-
-		}
-
-	} );
-
-	Object.defineProperties( Object3D.prototype, {
-
-		eulerOrder: {
-			get: function () {
-
-				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
-				return this.rotation.order;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
-				this.rotation.order = value;
-
-			}
-		},
-		useQuaternion: {
-			get: function () {
-
-				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );
-
-			}
-		}
-
-	} );
-
-	Object.defineProperties( LOD.prototype, {
-
-		objects: {
-			get: function () {
-
-				console.warn( 'THREE.LOD: .objects has been renamed to .levels.' );
-				return this.levels;
-
-			}
-		}
-
-	} );
-
-	Object.defineProperty( Skeleton.prototype, 'useVertexTexture', {
-
-		get: function () {
-
-			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
-
-		},
-		set: function () {
-
-			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );
-
-		}
-
-	} );
-
-	Object.defineProperty( Curve.prototype, '__arcLengthDivisions', {
-
-		get: function () {
-
-			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
-			return this.arcLengthDivisions;
-
-		},
-		set: function ( value ) {
-
-			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
-			this.arcLengthDivisions = value;
-
-		}
-
-	} );
-
-	//
-
-	PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {
-
-		console.warn( "THREE.PerspectiveCamera.setLens is deprecated. " +
-				"Use .setFocalLength and .filmGauge for a photographic setup." );
-
-		if ( filmGauge !== undefined ) this.filmGauge = filmGauge;
-		this.setFocalLength( focalLength );
-
-	};
-
-	//
-
-	Object.defineProperties( Light.prototype, {
-		onlyShadow: {
-			set: function () {
-
-				console.warn( 'THREE.Light: .onlyShadow has been removed.' );
-
-			}
-		},
-		shadowCameraFov: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
-				this.shadow.camera.fov = value;
-
-			}
-		},
-		shadowCameraLeft: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
-				this.shadow.camera.left = value;
-
-			}
-		},
-		shadowCameraRight: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
-				this.shadow.camera.right = value;
-
-			}
-		},
-		shadowCameraTop: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
-				this.shadow.camera.top = value;
-
-			}
-		},
-		shadowCameraBottom: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
-				this.shadow.camera.bottom = value;
-
-			}
-		},
-		shadowCameraNear: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
-				this.shadow.camera.near = value;
-
-			}
-		},
-		shadowCameraFar: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
-				this.shadow.camera.far = value;
-
-			}
-		},
-		shadowCameraVisible: {
-			set: function () {
-
-				console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );
-
-			}
-		},
-		shadowBias: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
-				this.shadow.bias = value;
-
-			}
-		},
-		shadowDarkness: {
-			set: function () {
-
-				console.warn( 'THREE.Light: .shadowDarkness has been removed.' );
-
-			}
-		},
-		shadowMapWidth: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
-				this.shadow.mapSize.width = value;
-
-			}
-		},
-		shadowMapHeight: {
-			set: function ( value ) {
-
-				console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
-				this.shadow.mapSize.height = value;
-
-			}
-		}
-	} );
-
-	//
-
-	Object.defineProperties( BufferAttribute.prototype, {
-
-		length: {
-			get: function () {
-
-				console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );
-				return this.array.length;
-
-			}
-		}
-
-	} );
-
-	Object.assign( BufferGeometry.prototype, {
-
-		addIndex: function ( index ) {
-
-			console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
-			this.setIndex( index );
-
-		},
-		addDrawCall: function ( start, count, indexOffset ) {
-
-			if ( indexOffset !== undefined ) {
-
-				console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );
-
-			}
-			console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
-			this.addGroup( start, count );
-
-		},
-		clearDrawCalls: function () {
-
-			console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
-			this.clearGroups();
-
-		},
-		computeTangents: function () {
-
-			console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );
-
-		},
-		computeOffsets: function () {
-
-			console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );
-
-		}
-
-	} );
-
-	Object.defineProperties( BufferGeometry.prototype, {
-
-		drawcalls: {
-			get: function () {
-
-				console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
-				return this.groups;
-
-			}
-		},
-		offsets: {
-			get: function () {
-
-				console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
-				return this.groups;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( Uniform.prototype, {
-
-		dynamic: {
-			set: function () {
-
-				console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );
-
-			}
-		},
-		onUpdate: {
-			value: function () {
-
-				console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );
-				return this;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( Material.prototype, {
-
-		wrapAround: {
-			get: function () {
-
-				console.warn( 'THREE.Material: .wrapAround has been removed.' );
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.Material: .wrapAround has been removed.' );
-
-			}
-		},
-		wrapRGB: {
-			get: function () {
-
-				console.warn( 'THREE.Material: .wrapRGB has been removed.' );
-				return new Color();
-
-			}
-		},
-
-		shading: {
-			get: function () {
-
-				console.error( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.' + this.type + ': .shading has been removed. Use the boolean .flatShading instead.' );
-				this.flatShading = ( value === FlatShading );
-
-			}
-		}
-
-	} );
-
-	Object.defineProperties( MeshPhongMaterial.prototype, {
-
-		metal: {
-			get: function () {
-
-				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );
-				return false;
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );
-
-			}
-		}
-
-	} );
-
-	Object.defineProperties( ShaderMaterial.prototype, {
-
-		derivatives: {
-			get: function () {
-
-				console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
-				return this.extensions.derivatives;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
-				this.extensions.derivatives = value;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.assign( WebGLRenderer.prototype, {
-
-		getCurrentRenderTarget: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );
-			return this.getRenderTarget();
-
-		},
-
-		getMaxAnisotropy: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().' );
-			return this.capabilities.getMaxAnisotropy();
-
-		},
-
-		getPrecision: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.' );
-			return this.capabilities.precision;
-
-		},
-
-		resetGLState: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .resetGLState() is now .state.reset().' );
-			return this.state.reset();
-
-		},
-
-		supportsFloatTextures: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
-			return this.extensions.get( 'OES_texture_float' );
-
-		},
-		supportsHalfFloatTextures: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
-			return this.extensions.get( 'OES_texture_half_float' );
-
-		},
-		supportsStandardDerivatives: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
-			return this.extensions.get( 'OES_standard_derivatives' );
-
-		},
-		supportsCompressedTextureS3TC: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
-			return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );
-
-		},
-		supportsCompressedTexturePVRTC: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
-			return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );
-
-		},
-		supportsBlendMinMax: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
-			return this.extensions.get( 'EXT_blend_minmax' );
-
-		},
-		supportsVertexTextures: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );
-			return this.capabilities.vertexTextures;
-
-		},
-		supportsInstancedArrays: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
-			return this.extensions.get( 'ANGLE_instanced_arrays' );
-
-		},
-		enableScissorTest: function ( boolean ) {
-
-			console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
-			this.setScissorTest( boolean );
-
-		},
-		initMaterial: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );
-
-		},
-		addPrePlugin: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );
-
-		},
-		addPostPlugin: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );
-
-		},
-		updateShadowMap: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );
-
-		},
-		setFaceCulling: function () {
-
-			console.warn( 'THREE.WebGLRenderer: .setFaceCulling() has been removed.' );
-
-		}
-
-	} );
-
-	Object.defineProperties( WebGLRenderer.prototype, {
-
-		shadowMapEnabled: {
-			get: function () {
-
-				return this.shadowMap.enabled;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
-				this.shadowMap.enabled = value;
-
-			}
-		},
-		shadowMapType: {
-			get: function () {
-
-				return this.shadowMap.type;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
-				this.shadowMap.type = value;
-
-			}
-		},
-		shadowMapCullFace: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function ( /* value */ ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.' );
-
-			}
-		}
-	} );
-
-	Object.defineProperties( WebGLShadowMap.prototype, {
-
-		cullFace: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function ( /* cullFace */ ) {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.' );
-
-			}
-		},
-		renderReverseSided: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.' );
-
-			}
-		},
-		renderSingleSided: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
-				return undefined;
-
-			},
-			set: function () {
-
-				console.warn( 'THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.' );
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( WebGLRenderTarget.prototype, {
-
-		wrapS: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
-				return this.texture.wrapS;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
-				this.texture.wrapS = value;
-
-			}
-		},
-		wrapT: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
-				return this.texture.wrapT;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
-				this.texture.wrapT = value;
-
-			}
-		},
-		magFilter: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
-				return this.texture.magFilter;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
-				this.texture.magFilter = value;
-
-			}
-		},
-		minFilter: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
-				return this.texture.minFilter;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
-				this.texture.minFilter = value;
-
-			}
-		},
-		anisotropy: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
-				return this.texture.anisotropy;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
-				this.texture.anisotropy = value;
-
-			}
-		},
-		offset: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
-				return this.texture.offset;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
-				this.texture.offset = value;
-
-			}
-		},
-		repeat: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
-				return this.texture.repeat;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
-				this.texture.repeat = value;
-
-			}
-		},
-		format: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
-				return this.texture.format;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
-				this.texture.format = value;
-
-			}
-		},
-		type: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
-				return this.texture.type;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
-				this.texture.type = value;
-
-			}
-		},
-		generateMipmaps: {
-			get: function () {
-
-				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
-				return this.texture.generateMipmaps;
-
-			},
-			set: function ( value ) {
-
-				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
-				this.texture.generateMipmaps = value;
-
-			}
-		}
-
-	} );
-
-	//
-
-	Object.defineProperties( WebVRManager.prototype, {
-
-		standing: {
-			set: function ( /* value */ ) {
-
-				console.warn( 'THREE.WebVRManager: .standing has been removed.' );
-
-			}
-		}
-
-	} );
-
-	//
-
-	Audio.prototype.load = function ( file ) {
-
-		console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );
-		var scope = this;
-		var audioLoader = new AudioLoader();
-		audioLoader.load( file, function ( buffer ) {
-
-			scope.setBuffer( buffer );
-
-		} );
-		return this;
-
-	};
-
-	AudioAnalyser.prototype.getData = function () {
-
-		console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );
-		return this.getFrequencyData();
-
-	};
-
-	//
-
-	CubeCamera.prototype.updateCubeMap = function ( renderer, scene ) {
-
-		console.warn( 'THREE.CubeCamera: .updateCubeMap() is now .update().' );
-		return this.update( renderer, scene );
-
-	};
-
-	//
-
-	var GeometryUtils = {
-
-		merge: function ( geometry1, geometry2, materialIndexOffset ) {
-
-			console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );
-			var matrix;
-
-			if ( geometry2.isMesh ) {
-
-				geometry2.matrixAutoUpdate && geometry2.updateMatrix();
-
-				matrix = geometry2.matrix;
-				geometry2 = geometry2.geometry;
-
-			}
-
-			geometry1.merge( geometry2, matrix, materialIndexOffset );
-
-		},
-
-		center: function ( geometry ) {
-
-			console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );
-			return geometry.center();
-
-		}
-
-	};
-
-	var ImageUtils = {
-
-		crossOrigin: undefined,
-
-		loadTexture: function ( url, mapping, onLoad, onError ) {
-
-			console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );
-
-			var loader = new TextureLoader();
-			loader.setCrossOrigin( this.crossOrigin );
-
-			var texture = loader.load( url, onLoad, undefined, onError );
-
-			if ( mapping ) texture.mapping = mapping;
-
-			return texture;
-
-		},
-
-		loadTextureCube: function ( urls, mapping, onLoad, onError ) {
-
-			console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );
-
-			var loader = new CubeTextureLoader();
-			loader.setCrossOrigin( this.crossOrigin );
-
-			var texture = loader.load( urls, onLoad, undefined, onError );
-
-			if ( mapping ) texture.mapping = mapping;
-
-			return texture;
-
-		},
-
-		loadCompressedTexture: function () {
-
-			console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );
-
-		},
-
-		loadCompressedTextureCube: function () {
-
-			console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );
-
-		}
-
-	};
-
-	//
-
-	function Projector() {
-
-		console.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );
-
-		this.projectVector = function ( vector, camera ) {
-
-			console.warn( 'THREE.Projector: .projectVector() is now vector.project().' );
-			vector.project( camera );
-
-		};
-
-		this.unprojectVector = function ( vector, camera ) {
-
-			console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );
-			vector.unproject( camera );
-
-		};
-
-		this.pickingRay = function () {
-
-			console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );
-
-		};
-
-	}
-
-	//
-
-	function CanvasRenderer() {
-
-		console.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );
-
-		this.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
-		this.clear = function () {};
-		this.render = function () {};
-		this.setClearColor = function () {};
-		this.setSize = function () {};
-
-	}
-
-	//
-
-	var SceneUtils = {
-
-		createMultiMaterialObject: function ( /* geometry, materials */ ) {
-
-			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
-
-		},
-
-		detach: function ( /* child, parent, scene */ ) {
-
-			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
-
-		},
-
-		attach: function ( /* child, scene, parent */ ) {
-
-			console.error( 'THREE.SceneUtils has been moved to /examples/js/utils/SceneUtils.js' );
-
-		}
-
-	};
-
-	//
-
-	function LensFlare() {
-
-		console.error( 'THREE.LensFlare has been moved to /examples/js/objects/Lensflare.js' );
-
-	}
-
-	exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
-	exports.WebGLRenderTarget = WebGLRenderTarget;
-	exports.WebGLRenderer = WebGLRenderer;
-	exports.ShaderLib = ShaderLib;
-	exports.UniformsLib = UniformsLib;
-	exports.UniformsUtils = UniformsUtils;
-	exports.ShaderChunk = ShaderChunk;
-	exports.FogExp2 = FogExp2;
-	exports.Fog = Fog;
-	exports.Scene = Scene;
-	exports.Sprite = Sprite;
-	exports.LOD = LOD;
-	exports.SkinnedMesh = SkinnedMesh;
-	exports.Skeleton = Skeleton;
-	exports.Bone = Bone;
-	exports.Mesh = Mesh;
-	exports.LineSegments = LineSegments;
-	exports.LineLoop = LineLoop;
-	exports.Line = Line;
-	exports.Points = Points;
-	exports.Group = Group;
-	exports.VideoTexture = VideoTexture;
-	exports.DataTexture = DataTexture;
-	exports.CompressedTexture = CompressedTexture;
-	exports.CubeTexture = CubeTexture;
-	exports.CanvasTexture = CanvasTexture;
-	exports.DepthTexture = DepthTexture;
-	exports.Texture = Texture;
-	exports.CompressedTextureLoader = CompressedTextureLoader;
-	exports.DataTextureLoader = DataTextureLoader;
-	exports.CubeTextureLoader = CubeTextureLoader;
-	exports.TextureLoader = TextureLoader;
-	exports.ObjectLoader = ObjectLoader;
-	exports.MaterialLoader = MaterialLoader;
-	exports.BufferGeometryLoader = BufferGeometryLoader;
-	exports.DefaultLoadingManager = DefaultLoadingManager;
-	exports.LoadingManager = LoadingManager;
-	exports.JSONLoader = JSONLoader;
-	exports.ImageLoader = ImageLoader;
-	exports.ImageBitmapLoader = ImageBitmapLoader;
-	exports.FontLoader = FontLoader;
-	exports.FileLoader = FileLoader;
-	exports.Loader = Loader;
-	exports.LoaderUtils = LoaderUtils;
-	exports.Cache = Cache;
-	exports.AudioLoader = AudioLoader;
-	exports.SpotLightShadow = SpotLightShadow;
-	exports.SpotLight = SpotLight;
-	exports.PointLight = PointLight;
-	exports.RectAreaLight = RectAreaLight;
-	exports.HemisphereLight = HemisphereLight;
-	exports.DirectionalLightShadow = DirectionalLightShadow;
-	exports.DirectionalLight = DirectionalLight;
-	exports.AmbientLight = AmbientLight;
-	exports.LightShadow = LightShadow;
-	exports.Light = Light;
-	exports.StereoCamera = StereoCamera;
-	exports.PerspectiveCamera = PerspectiveCamera;
-	exports.OrthographicCamera = OrthographicCamera;
-	exports.CubeCamera = CubeCamera;
-	exports.ArrayCamera = ArrayCamera;
-	exports.Camera = Camera;
-	exports.AudioListener = AudioListener;
-	exports.PositionalAudio = PositionalAudio;
-	exports.AudioContext = AudioContext;
-	exports.AudioAnalyser = AudioAnalyser;
-	exports.Audio = Audio;
-	exports.VectorKeyframeTrack = VectorKeyframeTrack;
-	exports.StringKeyframeTrack = StringKeyframeTrack;
-	exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
-	exports.NumberKeyframeTrack = NumberKeyframeTrack;
-	exports.ColorKeyframeTrack = ColorKeyframeTrack;
-	exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
-	exports.PropertyMixer = PropertyMixer;
-	exports.PropertyBinding = PropertyBinding;
-	exports.KeyframeTrack = KeyframeTrack;
-	exports.AnimationUtils = AnimationUtils;
-	exports.AnimationObjectGroup = AnimationObjectGroup;
-	exports.AnimationMixer = AnimationMixer;
-	exports.AnimationClip = AnimationClip;
-	exports.Uniform = Uniform;
-	exports.InstancedBufferGeometry = InstancedBufferGeometry;
-	exports.BufferGeometry = BufferGeometry;
-	exports.Geometry = Geometry;
-	exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
-	exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
-	exports.InterleavedBuffer = InterleavedBuffer;
-	exports.InstancedBufferAttribute = InstancedBufferAttribute;
-	exports.Face3 = Face3;
-	exports.Object3D = Object3D;
-	exports.Raycaster = Raycaster;
-	exports.Layers = Layers;
-	exports.EventDispatcher = EventDispatcher;
-	exports.Clock = Clock;
-	exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
-	exports.LinearInterpolant = LinearInterpolant;
-	exports.DiscreteInterpolant = DiscreteInterpolant;
-	exports.CubicInterpolant = CubicInterpolant;
-	exports.Interpolant = Interpolant;
-	exports.Triangle = Triangle;
-	exports.Math = _Math;
-	exports.Spherical = Spherical;
-	exports.Cylindrical = Cylindrical;
-	exports.Plane = Plane;
-	exports.Frustum = Frustum;
-	exports.Sphere = Sphere;
-	exports.Ray = Ray;
-	exports.Matrix4 = Matrix4;
-	exports.Matrix3 = Matrix3;
-	exports.Box3 = Box3;
-	exports.Box2 = Box2;
-	exports.Line3 = Line3;
-	exports.Euler = Euler;
-	exports.Vector4 = Vector4;
-	exports.Vector3 = Vector3;
-	exports.Vector2 = Vector2;
-	exports.Quaternion = Quaternion;
-	exports.Color = Color;
-	exports.ImmediateRenderObject = ImmediateRenderObject;
-	exports.VertexNormalsHelper = VertexNormalsHelper;
-	exports.SpotLightHelper = SpotLightHelper;
-	exports.SkeletonHelper = SkeletonHelper;
-	exports.PointLightHelper = PointLightHelper;
-	exports.RectAreaLightHelper = RectAreaLightHelper;
-	exports.HemisphereLightHelper = HemisphereLightHelper;
-	exports.GridHelper = GridHelper;
-	exports.PolarGridHelper = PolarGridHelper;
-	exports.FaceNormalsHelper = FaceNormalsHelper;
-	exports.DirectionalLightHelper = DirectionalLightHelper;
-	exports.CameraHelper = CameraHelper;
-	exports.BoxHelper = BoxHelper;
-	exports.Box3Helper = Box3Helper;
-	exports.PlaneHelper = PlaneHelper;
-	exports.ArrowHelper = ArrowHelper;
-	exports.AxesHelper = AxesHelper;
-	exports.Shape = Shape;
-	exports.Path = Path;
-	exports.ShapePath = ShapePath;
-	exports.Font = Font;
-	exports.CurvePath = CurvePath;
-	exports.Curve = Curve;
-	exports.ShapeUtils = ShapeUtils;
-	exports.WebGLUtils = WebGLUtils;
-	exports.WireframeGeometry = WireframeGeometry;
-	exports.ParametricGeometry = ParametricGeometry;
-	exports.ParametricBufferGeometry = ParametricBufferGeometry;
-	exports.TetrahedronGeometry = TetrahedronGeometry;
-	exports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;
-	exports.OctahedronGeometry = OctahedronGeometry;
-	exports.OctahedronBufferGeometry = OctahedronBufferGeometry;
-	exports.IcosahedronGeometry = IcosahedronGeometry;
-	exports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;
-	exports.DodecahedronGeometry = DodecahedronGeometry;
-	exports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;
-	exports.PolyhedronGeometry = PolyhedronGeometry;
-	exports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;
-	exports.TubeGeometry = TubeGeometry;
-	exports.TubeBufferGeometry = TubeBufferGeometry;
-	exports.TorusKnotGeometry = TorusKnotGeometry;
-	exports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;
-	exports.TorusGeometry = TorusGeometry;
-	exports.TorusBufferGeometry = TorusBufferGeometry;
-	exports.TextGeometry = TextGeometry;
-	exports.TextBufferGeometry = TextBufferGeometry;
-	exports.SphereGeometry = SphereGeometry;
-	exports.SphereBufferGeometry = SphereBufferGeometry;
-	exports.RingGeometry = RingGeometry;
-	exports.RingBufferGeometry = RingBufferGeometry;
-	exports.PlaneGeometry = PlaneGeometry;
-	exports.PlaneBufferGeometry = PlaneBufferGeometry;
-	exports.LatheGeometry = LatheGeometry;
-	exports.LatheBufferGeometry = LatheBufferGeometry;
-	exports.ShapeGeometry = ShapeGeometry;
-	exports.ShapeBufferGeometry = ShapeBufferGeometry;
-	exports.ExtrudeGeometry = ExtrudeGeometry;
-	exports.ExtrudeBufferGeometry = ExtrudeBufferGeometry;
-	exports.EdgesGeometry = EdgesGeometry;
-	exports.ConeGeometry = ConeGeometry;
-	exports.ConeBufferGeometry = ConeBufferGeometry;
-	exports.CylinderGeometry = CylinderGeometry;
-	exports.CylinderBufferGeometry = CylinderBufferGeometry;
-	exports.CircleGeometry = CircleGeometry;
-	exports.CircleBufferGeometry = CircleBufferGeometry;
-	exports.BoxGeometry = BoxGeometry;
-	exports.BoxBufferGeometry = BoxBufferGeometry;
-	exports.ShadowMaterial = ShadowMaterial;
-	exports.SpriteMaterial = SpriteMaterial;
-	exports.RawShaderMaterial = RawShaderMaterial;
-	exports.ShaderMaterial = ShaderMaterial;
-	exports.PointsMaterial = PointsMaterial;
-	exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
-	exports.MeshStandardMaterial = MeshStandardMaterial;
-	exports.MeshPhongMaterial = MeshPhongMaterial;
-	exports.MeshToonMaterial = MeshToonMaterial;
-	exports.MeshNormalMaterial = MeshNormalMaterial;
-	exports.MeshLambertMaterial = MeshLambertMaterial;
-	exports.MeshDepthMaterial = MeshDepthMaterial;
-	exports.MeshDistanceMaterial = MeshDistanceMaterial;
-	exports.MeshBasicMaterial = MeshBasicMaterial;
-	exports.LineDashedMaterial = LineDashedMaterial;
-	exports.LineBasicMaterial = LineBasicMaterial;
-	exports.Material = Material;
-	exports.Float64BufferAttribute = Float64BufferAttribute;
-	exports.Float32BufferAttribute = Float32BufferAttribute;
-	exports.Uint32BufferAttribute = Uint32BufferAttribute;
-	exports.Int32BufferAttribute = Int32BufferAttribute;
-	exports.Uint16BufferAttribute = Uint16BufferAttribute;
-	exports.Int16BufferAttribute = Int16BufferAttribute;
-	exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
-	exports.Uint8BufferAttribute = Uint8BufferAttribute;
-	exports.Int8BufferAttribute = Int8BufferAttribute;
-	exports.BufferAttribute = BufferAttribute;
-	exports.ArcCurve = ArcCurve;
-	exports.CatmullRomCurve3 = CatmullRomCurve3;
-	exports.CubicBezierCurve = CubicBezierCurve;
-	exports.CubicBezierCurve3 = CubicBezierCurve3;
-	exports.EllipseCurve = EllipseCurve;
-	exports.LineCurve = LineCurve;
-	exports.LineCurve3 = LineCurve3;
-	exports.QuadraticBezierCurve = QuadraticBezierCurve;
-	exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
-	exports.SplineCurve = SplineCurve;
-	exports.REVISION = REVISION;
-	exports.MOUSE = MOUSE;
-	exports.CullFaceNone = CullFaceNone;
-	exports.CullFaceBack = CullFaceBack;
-	exports.CullFaceFront = CullFaceFront;
-	exports.CullFaceFrontBack = CullFaceFrontBack;
-	exports.FrontFaceDirectionCW = FrontFaceDirectionCW;
-	exports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;
-	exports.BasicShadowMap = BasicShadowMap;
-	exports.PCFShadowMap = PCFShadowMap;
-	exports.PCFSoftShadowMap = PCFSoftShadowMap;
-	exports.FrontSide = FrontSide;
-	exports.BackSide = BackSide;
-	exports.DoubleSide = DoubleSide;
-	exports.FlatShading = FlatShading;
-	exports.SmoothShading = SmoothShading;
-	exports.NoColors = NoColors;
-	exports.FaceColors = FaceColors;
-	exports.VertexColors = VertexColors;
-	exports.NoBlending = NoBlending;
-	exports.NormalBlending = NormalBlending;
-	exports.AdditiveBlending = AdditiveBlending;
-	exports.SubtractiveBlending = SubtractiveBlending;
-	exports.MultiplyBlending = MultiplyBlending;
-	exports.CustomBlending = CustomBlending;
-	exports.AddEquation = AddEquation;
-	exports.SubtractEquation = SubtractEquation;
-	exports.ReverseSubtractEquation = ReverseSubtractEquation;
-	exports.MinEquation = MinEquation;
-	exports.MaxEquation = MaxEquation;
-	exports.ZeroFactor = ZeroFactor;
-	exports.OneFactor = OneFactor;
-	exports.SrcColorFactor = SrcColorFactor;
-	exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
-	exports.SrcAlphaFactor = SrcAlphaFactor;
-	exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
-	exports.DstAlphaFactor = DstAlphaFactor;
-	exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
-	exports.DstColorFactor = DstColorFactor;
-	exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
-	exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
-	exports.NeverDepth = NeverDepth;
-	exports.AlwaysDepth = AlwaysDepth;
-	exports.LessDepth = LessDepth;
-	exports.LessEqualDepth = LessEqualDepth;
-	exports.EqualDepth = EqualDepth;
-	exports.GreaterEqualDepth = GreaterEqualDepth;
-	exports.GreaterDepth = GreaterDepth;
-	exports.NotEqualDepth = NotEqualDepth;
-	exports.MultiplyOperation = MultiplyOperation;
-	exports.MixOperation = MixOperation;
-	exports.AddOperation = AddOperation;
-	exports.NoToneMapping = NoToneMapping;
-	exports.LinearToneMapping = LinearToneMapping;
-	exports.ReinhardToneMapping = ReinhardToneMapping;
-	exports.Uncharted2ToneMapping = Uncharted2ToneMapping;
-	exports.CineonToneMapping = CineonToneMapping;
-	exports.UVMapping = UVMapping;
-	exports.CubeReflectionMapping = CubeReflectionMapping;
-	exports.CubeRefractionMapping = CubeRefractionMapping;
-	exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
-	exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
-	exports.SphericalReflectionMapping = SphericalReflectionMapping;
-	exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
-	exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
-	exports.RepeatWrapping = RepeatWrapping;
-	exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
-	exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
-	exports.NearestFilter = NearestFilter;
-	exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
-	exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
-	exports.LinearFilter = LinearFilter;
-	exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
-	exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
-	exports.UnsignedByteType = UnsignedByteType;
-	exports.ByteType = ByteType;
-	exports.ShortType = ShortType;
-	exports.UnsignedShortType = UnsignedShortType;
-	exports.IntType = IntType;
-	exports.UnsignedIntType = UnsignedIntType;
-	exports.FloatType = FloatType;
-	exports.HalfFloatType = HalfFloatType;
-	exports.UnsignedShort4444Type = UnsignedShort4444Type;
-	exports.UnsignedShort5551Type = UnsignedShort5551Type;
-	exports.UnsignedShort565Type = UnsignedShort565Type;
-	exports.UnsignedInt248Type = UnsignedInt248Type;
-	exports.AlphaFormat = AlphaFormat;
-	exports.RGBFormat = RGBFormat;
-	exports.RGBAFormat = RGBAFormat;
-	exports.LuminanceFormat = LuminanceFormat;
-	exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
-	exports.RGBEFormat = RGBEFormat;
-	exports.DepthFormat = DepthFormat;
-	exports.DepthStencilFormat = DepthStencilFormat;
-	exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
-	exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
-	exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
-	exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
-	exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
-	exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
-	exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
-	exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
-	exports.RGB_ETC1_Format = RGB_ETC1_Format;
-	exports.RGBA_ASTC_4x4_Format = RGBA_ASTC_4x4_Format;
-	exports.RGBA_ASTC_5x4_Format = RGBA_ASTC_5x4_Format;
-	exports.RGBA_ASTC_5x5_Format = RGBA_ASTC_5x5_Format;
-	exports.RGBA_ASTC_6x5_Format = RGBA_ASTC_6x5_Format;
-	exports.RGBA_ASTC_6x6_Format = RGBA_ASTC_6x6_Format;
-	exports.RGBA_ASTC_8x5_Format = RGBA_ASTC_8x5_Format;
-	exports.RGBA_ASTC_8x6_Format = RGBA_ASTC_8x6_Format;
-	exports.RGBA_ASTC_8x8_Format = RGBA_ASTC_8x8_Format;
-	exports.RGBA_ASTC_10x5_Format = RGBA_ASTC_10x5_Format;
-	exports.RGBA_ASTC_10x6_Format = RGBA_ASTC_10x6_Format;
-	exports.RGBA_ASTC_10x8_Format = RGBA_ASTC_10x8_Format;
-	exports.RGBA_ASTC_10x10_Format = RGBA_ASTC_10x10_Format;
-	exports.RGBA_ASTC_12x10_Format = RGBA_ASTC_12x10_Format;
-	exports.RGBA_ASTC_12x12_Format = RGBA_ASTC_12x12_Format;
-	exports.LoopOnce = LoopOnce;
-	exports.LoopRepeat = LoopRepeat;
-	exports.LoopPingPong = LoopPingPong;
-	exports.InterpolateDiscrete = InterpolateDiscrete;
-	exports.InterpolateLinear = InterpolateLinear;
-	exports.InterpolateSmooth = InterpolateSmooth;
-	exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
-	exports.ZeroSlopeEnding = ZeroSlopeEnding;
-	exports.WrapAroundEnding = WrapAroundEnding;
-	exports.TrianglesDrawMode = TrianglesDrawMode;
-	exports.TriangleStripDrawMode = TriangleStripDrawMode;
-	exports.TriangleFanDrawMode = TriangleFanDrawMode;
-	exports.LinearEncoding = LinearEncoding;
-	exports.sRGBEncoding = sRGBEncoding;
-	exports.GammaEncoding = GammaEncoding;
-	exports.RGBEEncoding = RGBEEncoding;
-	exports.LogLuvEncoding = LogLuvEncoding;
-	exports.RGBM7Encoding = RGBM7Encoding;
-	exports.RGBM16Encoding = RGBM16Encoding;
-	exports.RGBDEncoding = RGBDEncoding;
-	exports.BasicDepthPacking = BasicDepthPacking;
-	exports.RGBADepthPacking = RGBADepthPacking;
-	exports.CubeGeometry = BoxGeometry;
-	exports.Face4 = Face4;
-	exports.LineStrip = LineStrip;
-	exports.LinePieces = LinePieces;
-	exports.MeshFaceMaterial = MeshFaceMaterial;
-	exports.MultiMaterial = MultiMaterial;
-	exports.PointCloud = PointCloud;
-	exports.Particle = Particle;
-	exports.ParticleSystem = ParticleSystem;
-	exports.PointCloudMaterial = PointCloudMaterial;
-	exports.ParticleBasicMaterial = ParticleBasicMaterial;
-	exports.ParticleSystemMaterial = ParticleSystemMaterial;
-	exports.Vertex = Vertex;
-	exports.DynamicBufferAttribute = DynamicBufferAttribute;
-	exports.Int8Attribute = Int8Attribute;
-	exports.Uint8Attribute = Uint8Attribute;
-	exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
-	exports.Int16Attribute = Int16Attribute;
-	exports.Uint16Attribute = Uint16Attribute;
-	exports.Int32Attribute = Int32Attribute;
-	exports.Uint32Attribute = Uint32Attribute;
-	exports.Float32Attribute = Float32Attribute;
-	exports.Float64Attribute = Float64Attribute;
-	exports.ClosedSplineCurve3 = ClosedSplineCurve3;
-	exports.SplineCurve3 = SplineCurve3;
-	exports.Spline = Spline;
-	exports.AxisHelper = AxisHelper;
-	exports.BoundingBoxHelper = BoundingBoxHelper;
-	exports.EdgesHelper = EdgesHelper;
-	exports.WireframeHelper = WireframeHelper;
-	exports.XHRLoader = XHRLoader;
-	exports.BinaryTextureLoader = BinaryTextureLoader;
-	exports.GeometryUtils = GeometryUtils;
-	exports.ImageUtils = ImageUtils;
-	exports.Projector = Projector;
-	exports.CanvasRenderer = CanvasRenderer;
-	exports.SceneUtils = SceneUtils;
-	exports.LensFlare = LensFlare;
-
-	Object.defineProperty(exports, '__esModule', { value: true });
-
-})));
-
-},{}],41:[function(_dereq_,module,exports){
-/**
- * @author mrdoob / http://mrdoob.com/
- * @author Mugen87 / https://github.com/Mugen87
- */
-
-THREE.ColladaLoader = function ( manager ) {
-
-	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
-
-};
-
-THREE.ColladaLoader.prototype = {
-
-	constructor: THREE.ColladaLoader,
-
-	crossOrigin: 'Anonymous',
-
-	load: function ( url, onLoad, onProgress, onError ) {
-
-		var scope = this;
-
-		var path = scope.path === undefined ? THREE.LoaderUtils.extractUrlBase( url ) : scope.path;
-
-		var loader = new THREE.FileLoader( scope.manager );
-		loader.load( url, function ( text ) {
-
-			onLoad( scope.parse( text, path ) );
-
-		}, onProgress, onError );
-
-	},
-
-	setPath: function ( value ) {
-
-		this.path = value;
-
-	},
-
-	options: {
-
-		set convertUpAxis( value ) {
-
-			console.warn( 'THREE.ColladaLoader: options.convertUpAxis() has been removed. Up axis is converted automatically.' );
-
-		}
-
-	},
-
-	setCrossOrigin: function ( value ) {
-
-		this.crossOrigin = value;
-
-	},
-
-	parse: function ( text, path ) {
-
-		function getElementsByTagName( xml, name ) {
-
-			// Non recursive xml.getElementsByTagName() ...
-
-			var array = [];
-			var childNodes = xml.childNodes;
-
-			for ( var i = 0, l = childNodes.length; i < l; i ++ ) {
-
-				var child = childNodes[ i ];
-
-				if ( child.nodeName === name ) {
-
-					array.push( child );
-
-				}
-
-			}
-
-			return array;
-
-		}
-
-		function parseStrings( text ) {
-
-			if ( text.length === 0 ) return [];
-
-			var parts = text.trim().split( /\s+/ );
-			var array = new Array( parts.length );
-
-			for ( var i = 0, l = parts.length; i < l; i ++ ) {
-
-				array[ i ] = parts[ i ];
-
-			}
-
-			return array;
-
-		}
-
-		function parseFloats( text ) {
-
-			if ( text.length === 0 ) return [];
-
-			var parts = text.trim().split( /\s+/ );
-			var array = new Array( parts.length );
-
-			for ( var i = 0, l = parts.length; i < l; i ++ ) {
-
-				array[ i ] = parseFloat( parts[ i ] );
-
-			}
-
-			return array;
-
-		}
-
-		function parseInts( text ) {
-
-			if ( text.length === 0 ) return [];
-
-			var parts = text.trim().split( /\s+/ );
-			var array = new Array( parts.length );
-
-			for ( var i = 0, l = parts.length; i < l; i ++ ) {
-
-				array[ i ] = parseInt( parts[ i ] );
-
-			}
-
-			return array;
-
-		}
-
-		function parseId( text ) {
-
-			return text.substring( 1 );
-
-		}
-
-		function generateId() {
-
-			return 'three_default_' + ( count ++ );
-
-		}
-
-		function isEmpty( object ) {
-
-			return Object.keys( object ).length === 0;
-
-		}
-
-		// asset
-
-		function parseAsset( xml ) {
-
-			return {
-				unit: parseAssetUnit( getElementsByTagName( xml, 'unit' )[ 0 ] ),
-				upAxis: parseAssetUpAxis( getElementsByTagName( xml, 'up_axis' )[ 0 ] )
-			};
-
-		}
-
-		function parseAssetUnit( xml ) {
-
-			return xml !== undefined ? parseFloat( xml.getAttribute( 'meter' ) ) : 1;
-
-		}
-
-		function parseAssetUpAxis( xml ) {
-
-			return xml !== undefined ? xml.textContent : 'Y_UP';
-
-		}
-
-		// library
-
-		function parseLibrary( xml, libraryName, nodeName, parser ) {
-
-			var library = getElementsByTagName( xml, libraryName )[ 0 ];
-
-			if ( library !== undefined ) {
-
-				var elements = getElementsByTagName( library, nodeName );
-
-				for ( var i = 0; i < elements.length; i ++ ) {
-
-					parser( elements[ i ] );
-
-				}
-
-			}
-
-		}
-
-		function buildLibrary( data, builder ) {
-
-			for ( var name in data ) {
-
-				var object = data[ name ];
-				object.build = builder( data[ name ] );
-
-			}
-
-		}
-
-		// get
-
-		function getBuild( data, builder ) {
-
-			if ( data.build !== undefined ) return data.build;
-
-			data.build = builder( data );
-
-			return data.build;
-
-		}
-
-		// animation
-
-		function parseAnimation( xml ) {
-
-			var data = {
-				sources: {},
-				samplers: {},
-				channels: {}
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				var id;
-
-				switch ( child.nodeName ) {
-
-					case 'source':
-						id = child.getAttribute( 'id' );
-						data.sources[ id ] = parseSource( child );
-						break;
-
-					case 'sampler':
-						id = child.getAttribute( 'id' );
-						data.samplers[ id ] = parseAnimationSampler( child );
-						break;
-
-					case 'channel':
-						id = child.getAttribute( 'target' );
-						data.channels[ id ] = parseAnimationChannel( child );
-						break;
-
-					default:
-						console.log( child );
-
-				}
-
-			}
-
-			library.animations[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function parseAnimationSampler( xml ) {
-
-			var data = {
-				inputs: {},
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'input':
-						var id = parseId( child.getAttribute( 'source' ) );
-						var semantic = child.getAttribute( 'semantic' );
-						data.inputs[ semantic ] = id;
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseAnimationChannel( xml ) {
-
-			var data = {};
-
-			var target = xml.getAttribute( 'target' );
-
-			// parsing SID Addressing Syntax
-
-			var parts = target.split( '/' );
-
-			var id = parts.shift();
-			var sid = parts.shift();
-
-			// check selection syntax
-
-			var arraySyntax = ( sid.indexOf( '(' ) !== - 1 );
-			var memberSyntax = ( sid.indexOf( '.' ) !== - 1 );
-
-			if ( memberSyntax ) {
-
-				//  member selection access
-
-				parts = sid.split( '.' );
-				sid = parts.shift();
-				data.member = parts.shift();
-
-			} else if ( arraySyntax ) {
-
-				// array-access syntax. can be used to express fields in one-dimensional vectors or two-dimensional matrices.
-
-				var indices = sid.split( '(' );
-				sid = indices.shift();
-
-				for ( var i = 0; i < indices.length; i ++ ) {
-
-					indices[ i ] = parseInt( indices[ i ].replace( /\)/, '' ) );
-
-				}
-
-				data.indices = indices;
-
-			}
-
-			data.id = id;
-			data.sid = sid;
-
-			data.arraySyntax = arraySyntax;
-			data.memberSyntax = memberSyntax;
-
-			data.sampler = parseId( xml.getAttribute( 'source' ) );
-
-			return data;
-
-		}
-
-		function buildAnimation( data ) {
-
-			var tracks = [];
-
-			var channels = data.channels;
-			var samplers = data.samplers;
-			var sources = data.sources;
-
-			for ( var target in channels ) {
-
-				if ( channels.hasOwnProperty( target ) ) {
-
-					var channel = channels[ target ];
-					var sampler = samplers[ channel.sampler ];
-
-					var inputId = sampler.inputs.INPUT;
-					var outputId = sampler.inputs.OUTPUT;
-
-					var inputSource = sources[ inputId ];
-					var outputSource = sources[ outputId ];
-
-					var animation = buildAnimationChannel( channel, inputSource, outputSource );
-
-					createKeyframeTracks( animation, tracks );
-
-				}
-
-			}
-
-			return tracks;
-
-		}
-
-		function getAnimation( id ) {
-
-			return getBuild( library.animations[ id ], buildAnimation );
-
-		}
-
-		function buildAnimationChannel( channel, inputSource, outputSource ) {
-
-			var node = library.nodes[ channel.id ];
-			var object3D = getNode( node.id );
-
-			var transform = node.transforms[ channel.sid ];
-			var defaultMatrix = node.matrix.clone().transpose();
-
-			var time, stride;
-			var i, il, j, jl;
-
-			var data = {};
-
-			// the collada spec allows the animation of data in various ways.
-			// depending on the transform type (matrix, translate, rotate, scale), we execute different logic
-
-			switch ( transform ) {
-
-				case 'matrix':
-
-					for ( i = 0, il = inputSource.array.length; i < il; i ++ ) {
-
-						time = inputSource.array[ i ];
-						stride = i * outputSource.stride;
-
-						if ( data[ time ] === undefined ) data[ time ] = {};
-
-						if ( channel.arraySyntax === true ) {
-
-							var value = outputSource.array[ stride ];
-							var index = channel.indices[ 0 ] + 4 * channel.indices[ 1 ];
-
-							data[ time ][ index ] = value;
-
-						} else {
-
-							for ( j = 0, jl = outputSource.stride; j < jl; j ++ ) {
-
-								data[ time ][ j ] = outputSource.array[ stride + j ];
-
-							}
-
-						}
-
-					}
-
-					break;
-
-				case 'translate':
-					console.warn( 'THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform );
-					break;
-
-				case 'rotate':
-					console.warn( 'THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform );
-					break;
-
-				case 'scale':
-					console.warn( 'THREE.ColladaLoader: Animation transform type "%s" not yet implemented.', transform );
-					break;
-
-			}
-
-			var keyframes = prepareAnimationData( data, defaultMatrix );
-
-			var animation = {
-				name: object3D.uuid,
-				keyframes: keyframes
-			};
-
-			return animation;
-
-		}
-
-		function prepareAnimationData( data, defaultMatrix ) {
-
-			var keyframes = [];
-
-			// transfer data into a sortable array
-
-			for ( var time in data ) {
-
-				keyframes.push( { time: parseFloat( time ), value: data[ time ] } );
-
-			}
-
-			// ensure keyframes are sorted by time
-
-			keyframes.sort( ascending );
-
-			// now we clean up all animation data, so we can use them for keyframe tracks
-
-			for ( var i = 0; i < 16; i ++ ) {
-
-				transformAnimationData( keyframes, i, defaultMatrix.elements[ i ] );
-
-			}
-
-			return keyframes;
-
-			// array sort function
-
-			function ascending( a, b ) {
-
-				return a.time - b.time;
-
-			}
-
-		}
-
-		var position = new THREE.Vector3();
-		var scale = new THREE.Vector3();
-		var quaternion = new THREE.Quaternion();
-
-		function createKeyframeTracks( animation, tracks ) {
-
-			var keyframes = animation.keyframes;
-			var name = animation.name;
-
-			var times = [];
-			var positionData = [];
-			var quaternionData = [];
-			var scaleData = [];
-
-			for ( var i = 0, l = keyframes.length; i < l; i ++ ) {
-
-				var keyframe = keyframes[ i ];
-
-				var time = keyframe.time;
-				var value = keyframe.value;
-
-				matrix.fromArray( value ).transpose();
-				matrix.decompose( position, quaternion, scale );
-
-				times.push( time );
-				positionData.push( position.x, position.y, position.z );
-				quaternionData.push( quaternion.x, quaternion.y, quaternion.z, quaternion.w );
-				scaleData.push( scale.x, scale.y, scale.z );
-
-			}
-
-			if ( positionData.length > 0 ) tracks.push( new THREE.VectorKeyframeTrack( name + '.position', times, positionData ) );
-			if ( quaternionData.length > 0 ) tracks.push( new THREE.QuaternionKeyframeTrack( name + '.quaternion', times, quaternionData ) );
-			if ( scaleData.length > 0 ) tracks.push( new THREE.VectorKeyframeTrack( name + '.scale', times, scaleData ) );
-
-			return tracks;
-
-		}
-
-		function transformAnimationData( keyframes, property, defaultValue ) {
-
-			var keyframe;
-
-			var empty = true;
-			var i, l;
-
-			// check, if values of a property are missing in our keyframes
-
-			for ( i = 0, l = keyframes.length; i < l; i ++ ) {
-
-				keyframe = keyframes[ i ];
-
-				if ( keyframe.value[ property ] === undefined ) {
-
-					keyframe.value[ property ] = null; // mark as missing
-
-				} else {
-
-					empty = false;
-
-				}
-
-			}
-
-			if ( empty === true ) {
-
-				// no values at all, so we set a default value
-
-				for ( i = 0, l = keyframes.length; i < l; i ++ ) {
-
-					keyframe = keyframes[ i ];
-
-					keyframe.value[ property ] = defaultValue;
-
-				}
-
-			} else {
-
-				// filling gaps
-
-				createMissingKeyframes( keyframes, property );
-
-			}
-
-		}
-
-		function createMissingKeyframes( keyframes, property ) {
-
-			var prev, next;
-
-			for ( var i = 0, l = keyframes.length; i < l; i ++ ) {
-
-				var keyframe = keyframes[ i ];
-
-				if ( keyframe.value[ property ] === null ) {
-
-					prev = getPrev( keyframes, i, property );
-					next = getNext( keyframes, i, property );
-
-					if ( prev === null ) {
-
-						keyframe.value[ property ] = next.value[ property ];
-						continue;
-
-					}
-
-					if ( next === null ) {
-
-						keyframe.value[ property ] = prev.value[ property ];
-						continue;
-
-					}
-
-					interpolate( keyframe, prev, next, property );
-
-				}
-
-			}
-
-		}
-
-		function getPrev( keyframes, i, property ) {
-
-			while ( i >= 0 ) {
-
-				var keyframe = keyframes[ i ];
-
-				if ( keyframe.value[ property ] !== null ) return keyframe;
-
-				i --;
-
-			}
-
-			return null;
-
-		}
-
-		function getNext( keyframes, i, property ) {
-
-			while ( i < keyframes.length ) {
-
-				var keyframe = keyframes[ i ];
-
-				if ( keyframe.value[ property ] !== null ) return keyframe;
-
-				i ++;
-
-			}
-
-			return null;
-
-		}
-
-		function interpolate( key, prev, next, property ) {
-
-			if ( ( next.time - prev.time ) === 0 ) {
-
-				key.value[ property ] = prev.value[ property ];
-				return;
-
-			}
-
-			key.value[ property ] = ( ( key.time - prev.time ) * ( next.value[ property ] - prev.value[ property ] ) / ( next.time - prev.time ) ) + prev.value[ property ];
-
-		}
-
-		// animation clips
-
-		function parseAnimationClip( xml ) {
-
-			var data = {
-				name: xml.getAttribute( 'id' ) || 'default',
-				start: parseFloat( xml.getAttribute( 'start' ) || 0 ),
-				end: parseFloat( xml.getAttribute( 'end' ) || 0 ),
-				animations: []
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'instance_animation':
-						data.animations.push( parseId( child.getAttribute( 'url' ) ) );
-						break;
-
-				}
-
-			}
-
-			library.clips[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function buildAnimationClip( data ) {
-
-			var tracks = [];
-
-			var name = data.name;
-			var duration = ( data.end - data.start ) || - 1;
-			var animations = data.animations;
-
-			for ( var i = 0, il = animations.length; i < il; i ++ ) {
-
-				var animationTracks = getAnimation( animations[ i ] );
-
-				for ( var j = 0, jl = animationTracks.length; j < jl; j ++ ) {
-
-					tracks.push( animationTracks[ j ] );
-
-				}
-
-			}
-
-			return new THREE.AnimationClip( name, duration, tracks );
-
-		}
-
-		function getAnimationClip( id ) {
-
-			return getBuild( library.clips[ id ], buildAnimationClip );
-
-		}
-
-		// controller
-
-		function parseController( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'skin':
-						// there is exactly one skin per controller
-						data.id = parseId( child.getAttribute( 'source' ) );
-						data.skin = parseSkin( child );
-						break;
-
-					case 'morph':
-						data.id = parseId( child.getAttribute( 'source' ) );
-						console.warn( 'THREE.ColladaLoader: Morph target animation not supported yet.' );
-						break;
-
-				}
-
-			}
-
-			library.controllers[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function parseSkin( xml ) {
-
-			var data = {
-				sources: {}
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'bind_shape_matrix':
-						data.bindShapeMatrix = parseFloats( child.textContent );
-						break;
-
-					case 'source':
-						var id = child.getAttribute( 'id' );
-						data.sources[ id ] = parseSource( child );
-						break;
-
-					case 'joints':
-						data.joints = parseJoints( child );
-						break;
-
-					case 'vertex_weights':
-						data.vertexWeights = parseVertexWeights( child );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseJoints( xml ) {
-
-			var data = {
-				inputs: {}
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'input':
-						var semantic = child.getAttribute( 'semantic' );
-						var id = parseId( child.getAttribute( 'source' ) );
-						data.inputs[ semantic ] = id;
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseVertexWeights( xml ) {
-
-			var data = {
-				inputs: {}
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'input':
-						var semantic = child.getAttribute( 'semantic' );
-						var id = parseId( child.getAttribute( 'source' ) );
-						var offset = parseInt( child.getAttribute( 'offset' ) );
-						data.inputs[ semantic ] = { id: id, offset: offset };
-						break;
-
-					case 'vcount':
-						data.vcount = parseInts( child.textContent );
-						break;
-
-					case 'v':
-						data.v = parseInts( child.textContent );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function buildController( data ) {
-
-			var build = {
-				id: data.id
-			};
-
-			var geometry = library.geometries[ build.id ];
-
-			if ( data.skin !== undefined ) {
-
-				build.skin = buildSkin( data.skin );
-
-				// we enhance the 'sources' property of the corresponding geometry with our skin data
-
-				geometry.sources.skinIndices = build.skin.indices;
-				geometry.sources.skinWeights = build.skin.weights;
-
-			}
-
-			return build;
-
-		}
-
-		function buildSkin( data ) {
-
-			var BONE_LIMIT = 4;
-
-			var build = {
-				joints: [], // this must be an array to preserve the joint order
-				indices: {
-					array: [],
-					stride: BONE_LIMIT
-				},
-				weights: {
-					array: [],
-					stride: BONE_LIMIT
-				}
-			};
-
-			var sources = data.sources;
-			var vertexWeights = data.vertexWeights;
-
-			var vcount = vertexWeights.vcount;
-			var v = vertexWeights.v;
-			var jointOffset = vertexWeights.inputs.JOINT.offset;
-			var weightOffset = vertexWeights.inputs.WEIGHT.offset;
-
-			var jointSource = data.sources[ data.joints.inputs.JOINT ];
-			var inverseSource = data.sources[ data.joints.inputs.INV_BIND_MATRIX ];
-
-			var weights = sources[ vertexWeights.inputs.WEIGHT.id ].array;
-			var stride = 0;
-
-			var i, j, l;
-
-			// procces skin data for each vertex
-
-			for ( i = 0, l = vcount.length; i < l; i ++ ) {
-
-				var jointCount = vcount[ i ]; // this is the amount of joints that affect a single vertex
-				var vertexSkinData = [];
-
-				for ( j = 0; j < jointCount; j ++ ) {
-
-					var skinIndex = v[ stride + jointOffset ];
-					var weightId = v[ stride + weightOffset ];
-					var skinWeight = weights[ weightId ];
-
-					vertexSkinData.push( { index: skinIndex, weight: skinWeight } );
-
-					stride += 2;
-
-				}
-
-				// we sort the joints in descending order based on the weights.
-				// this ensures, we only procced the most important joints of the vertex
-
-				vertexSkinData.sort( descending );
-
-				// now we provide for each vertex a set of four index and weight values.
-				// the order of the skin data matches the order of vertices
-
-				for ( j = 0; j < BONE_LIMIT; j ++ ) {
-
-					var d = vertexSkinData[ j ];
-
-					if ( d !== undefined ) {
-
-						build.indices.array.push( d.index );
-						build.weights.array.push( d.weight );
-
-					} else {
-
-						build.indices.array.push( 0 );
-						build.weights.array.push( 0 );
-
-					}
-
-				}
-
-			}
-
-			// setup bind matrix
-
-			build.bindMatrix = new THREE.Matrix4().fromArray( data.bindShapeMatrix ).transpose();
-
-			// process bones and inverse bind matrix data
-
-			for ( i = 0, l = jointSource.array.length; i < l; i ++ ) {
-
-				var name = jointSource.array[ i ];
-				var boneInverse = new THREE.Matrix4().fromArray( inverseSource.array, i * inverseSource.stride ).transpose();
-
-				build.joints.push( { name: name, boneInverse: boneInverse } );
-
-			}
-
-			return build;
-
-			// array sort function
-
-			function descending( a, b ) {
-
-				return b.weight - a.weight;
-
-			}
-
-		}
-
-		function getController( id ) {
-
-			return getBuild( library.controllers[ id ], buildController );
-
-		}
-
-		// image
-
-		function parseImage( xml ) {
-
-			var data = {
-				init_from: getElementsByTagName( xml, 'init_from' )[ 0 ].textContent
-			};
-
-			library.images[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function buildImage( data ) {
-
-			if ( data.build !== undefined ) return data.build;
-
-			return data.init_from;
-
-		}
-
-		function getImage( id ) {
-
-			return getBuild( library.images[ id ], buildImage );
-
-		}
-
-		// effect
-
-		function parseEffect( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'profile_COMMON':
-						data.profile = parseEffectProfileCOMMON( child );
-						break;
-
-				}
-
-			}
-
-			library.effects[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function parseEffectProfileCOMMON( xml ) {
-
-			var data = {
-				surfaces: {},
-				samplers: {}
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'newparam':
-						parseEffectNewparam( child, data );
-						break;
-
-					case 'technique':
-						data.technique = parseEffectTechnique( child );
-						break;
-
-					case 'extra':
-						data.extra = parseEffectExtra( child );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectNewparam( xml, data ) {
-
-			var sid = xml.getAttribute( 'sid' );
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'surface':
-						data.surfaces[ sid ] = parseEffectSurface( child );
-						break;
-
-					case 'sampler2D':
-						data.samplers[ sid ] = parseEffectSampler( child );
-						break;
-
-				}
-
-			}
-
-		}
-
-		function parseEffectSurface( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'init_from':
-						data.init_from = child.textContent;
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectSampler( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'source':
-						data.source = child.textContent;
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectTechnique( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'constant':
-					case 'lambert':
-					case 'blinn':
-					case 'phong':
-						data.type = child.nodeName;
-						data.parameters = parseEffectParameters( child );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectParameters( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'emission':
-					case 'diffuse':
-					case 'specular':
-					case 'shininess':
-					case 'transparency':
-						data[ child.nodeName ] = parseEffectParameter( child );
-						break;
-					case 'transparent':
-						data[ child.nodeName ] = {
-							opaque: child.getAttribute( 'opaque' ),
-							data: parseEffectParameter( child )
-						};
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectParameter( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'color':
-						data[ child.nodeName ] = parseFloats( child.textContent );
-						break;
-
-					case 'float':
-						data[ child.nodeName ] = parseFloat( child.textContent );
-						break;
-
-					case 'texture':
-						data[ child.nodeName ] = { id: child.getAttribute( 'texture' ), extra: parseEffectParameterTexture( child ) };
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectParameterTexture( xml ) {
-
-			var data = {
-				technique: {}
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'extra':
-						parseEffectParameterTextureExtra( child, data );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectParameterTextureExtra( xml, data ) {
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'technique':
-						parseEffectParameterTextureExtraTechnique( child, data );
-						break;
-
-				}
-
-			}
-
-		}
-
-		function parseEffectParameterTextureExtraTechnique( xml, data ) {
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'repeatU':
-					case 'repeatV':
-					case 'offsetU':
-					case 'offsetV':
-						data.technique[ child.nodeName ] = parseFloat( child.textContent );
-						break;
-
-					case 'wrapU':
-					case 'wrapV':
-
-						// some files have values for wrapU/wrapV which become NaN via parseInt
-
-						if ( child.textContent.toUpperCase() === 'TRUE' ) {
-
-							data.technique[ child.nodeName ] = 1;
-
-						} else if ( child.textContent.toUpperCase() === 'FALSE' ) {
-
-							data.technique[ child.nodeName ] = 0;
-
-						} else {
-
-							data.technique[ child.nodeName ] = parseInt( child.textContent );
-
-						}
-
-						break;
-
-				}
-
-			}
-
-		}
-
-		function parseEffectExtra( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'technique':
-						data.technique = parseEffectExtraTechnique( child );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseEffectExtraTechnique( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'double_sided':
-						data[ child.nodeName ] = parseInt( child.textContent );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function buildEffect( data ) {
-
-			return data;
-
-		}
-
-		function getEffect( id ) {
-
-			return getBuild( library.effects[ id ], buildEffect );
-
-		}
-
-		// material
-
-		function parseMaterial( xml ) {
-
-			var data = {
-				name: xml.getAttribute( 'name' )
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'instance_effect':
-						data.url = parseId( child.getAttribute( 'url' ) );
-						break;
-
-				}
-
-			}
-
-			library.materials[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function buildMaterial( data ) {
-
-			var effect = getEffect( data.url );
-			var technique = effect.profile.technique;
-			var extra = effect.profile.extra;
-
-			var material;
-
-			switch ( technique.type ) {
-
-				case 'phong':
-				case 'blinn':
-					material = new THREE.MeshPhongMaterial();
-					break;
-
-				case 'lambert':
-					material = new THREE.MeshLambertMaterial();
-					break;
-
-				default:
-					material = new THREE.MeshBasicMaterial();
-					break;
-
-			}
-
-			material.name = data.name;
-
-			function getTexture( textureObject ) {
-
-				var sampler = effect.profile.samplers[ textureObject.id ];
-				var image;
-
-				// get image
-
-				if ( sampler !== undefined ) {
-
-					var surface = effect.profile.surfaces[ sampler.source ];
-					image = getImage( surface.init_from );
-
-				} else {
-
-					console.warn( 'THREE.ColladaLoader: Undefined sampler. Access image directly (see #12530).' );
-					image = getImage( textureObject.id );
-
-				}
-
-				// create texture if image is avaiable
-
-				if ( image !== undefined ) {
-
-					var texture = textureLoader.load( image );
-
-					var extra = textureObject.extra;
-
-					if ( extra !== undefined && extra.technique !== undefined && isEmpty( extra.technique ) === false ) {
-
-						var technique = extra.technique;
-
-						texture.wrapS = technique.wrapU ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
-						texture.wrapT = technique.wrapV ? THREE.RepeatWrapping : THREE.ClampToEdgeWrapping;
-
-						texture.offset.set( technique.offsetU || 0, technique.offsetV || 0 );
-						texture.repeat.set( technique.repeatU || 1, technique.repeatV || 1 );
-
-					} else {
-
-						texture.wrapS = THREE.RepeatWrapping;
-						texture.wrapT = THREE.RepeatWrapping;
-
-					}
-
-					return texture;
-
-				} else {
-
-					console.error( 'THREE.ColladaLoader: Unable to load texture with ID:', textureObject.id );
-
-					return null;
-
-				}
-
-			}
-
-			var parameters = technique.parameters;
-
-			for ( var key in parameters ) {
-
-				var parameter = parameters[ key ];
-
-				switch ( key ) {
-
-					case 'diffuse':
-						if ( parameter.color ) material.color.fromArray( parameter.color );
-						if ( parameter.texture ) material.map = getTexture( parameter.texture );
-						break;
-					case 'specular':
-						if ( parameter.color && material.specular ) material.specular.fromArray( parameter.color );
-						if ( parameter.texture ) material.specularMap = getTexture( parameter.texture );
-						break;
-					case 'shininess':
-						if ( parameter.float && material.shininess )
-							material.shininess = parameter.float;
-						break;
-					case 'emission':
-						if ( parameter.color && material.emissive )
-							material.emissive.fromArray( parameter.color );
-						break;
-
-				}
-
-			}
-
-			//
-
-			var transparent = parameters[ 'transparent' ];
-			var transparency = parameters[ 'transparency' ];
-
-			// <transparency> does not exist but <transparent>
-
-			if ( transparency === undefined && transparent ) {
-
-				transparency = {
-					float: 1
-				};
-
-			}
-
-			// <transparent> does not exist but <transparency>
-
-			if ( transparent === undefined && transparency ) {
-
-				transparent = {
-					opaque: 'A_ONE',
-					data: {
-						color: [ 1, 1, 1, 1 ]
-					} };
-
-			}
-
-			if ( transparent && transparency ) {
-
-				// handle case if a texture exists but no color
-
-				if ( transparent.data.texture ) {
-
-					material.alphaMap = getTexture( transparent.data.texture );
-					material.transparent = true;
-
-				} else {
-
-					var color = transparent.data.color;
-
-					switch ( transparent.opaque ) {
-
-						case 'A_ONE':
-							material.opacity = color[ 3 ] * transparency.float;
-							break;
-						case 'RGB_ZERO':
-							material.opacity = 1 - ( color[ 0 ] * transparency.float );
-							break;
-						case 'A_ZERO':
-							material.opacity = 1 - ( color[ 3 ] * transparency.float );
-							break;
-						case 'RGB_ONE':
-							material.opacity = color[ 0 ] * transparency.float;
-							break;
-						default:
-							console.warn( 'THREE.ColladaLoader: Invalid opaque type "%s" of transparent tag.', transparent.opaque );
-
-					}
-
-					if ( material.opacity < 1 ) material.transparent = true;
-
-				}
-
-			}
-
-			//
-
-			if ( extra !== undefined && extra.technique !== undefined && extra.technique.double_sided === 1 ) {
-
-				material.side = THREE.DoubleSide;
-
-			}
-
-			return material;
-
-		}
-
-		function getMaterial( id ) {
-
-			return getBuild( library.materials[ id ], buildMaterial );
-
-		}
-
-		// camera
-
-		function parseCamera( xml ) {
-
-			var data = {
-				name: xml.getAttribute( 'name' )
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'optics':
-						data.optics = parseCameraOptics( child );
-						break;
-
-				}
-
-			}
-
-			library.cameras[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function parseCameraOptics( xml ) {
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				switch ( child.nodeName ) {
-
-					case 'technique_common':
-						return parseCameraTechnique( child );
-
-				}
-
-			}
-
-			return {};
-
-		}
-
-		function parseCameraTechnique( xml ) {
-
-			var data = {};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				switch ( child.nodeName ) {
-
-					case 'perspective':
-					case 'orthographic':
-
-						data.technique = child.nodeName;
-						data.parameters = parseCameraParameters( child );
-
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseCameraParameters( xml ) {
-
-			var data = {};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				switch ( child.nodeName ) {
-
-					case 'xfov':
-					case 'yfov':
-					case 'xmag':
-					case 'ymag':
-					case 'znear':
-					case 'zfar':
-					case 'aspect_ratio':
-						data[ child.nodeName ] = parseFloat( child.textContent );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function buildCamera( data ) {
-
-			var camera;
-
-			switch ( data.optics.technique ) {
-
-				case 'perspective':
-					camera = new THREE.PerspectiveCamera(
-						data.optics.parameters.yfov,
-						data.optics.parameters.aspect_ratio,
-						data.optics.parameters.znear,
-						data.optics.parameters.zfar
-					);
-					break;
-
-				case 'orthographic':
-					var ymag = data.optics.parameters.ymag;
-					var xmag = data.optics.parameters.xmag;
-					var aspectRatio = data.optics.parameters.aspect_ratio;
-
-					xmag = ( xmag === undefined ) ? ( ymag * aspectRatio ) : xmag;
-					ymag = ( ymag === undefined ) ? ( xmag / aspectRatio ) : ymag;
-
-					xmag *= 0.5;
-					ymag *= 0.5;
-
-					camera = new THREE.OrthographicCamera(
-						- xmag, xmag, ymag, - ymag, // left, right, top, bottom
-						data.optics.parameters.znear,
-						data.optics.parameters.zfar
-					);
-					break;
-
-				default:
-					camera = new THREE.PerspectiveCamera();
-					break;
-
-			}
-
-			camera.name = data.name;
-
-			return camera;
-
-		}
-
-		function getCamera( id ) {
-
-			var data = library.cameras[ id ];
-
-			if ( data !== undefined ) {
-
-				return getBuild( data, buildCamera );
-
-			}
-
-			console.warn( 'THREE.ColladaLoader: Couldn\'t find camera with ID:', id );
-
-			return null;
-
-		}
-
-		// light
-
-		function parseLight( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'technique_common':
-						data = parseLightTechnique( child );
-						break;
-
-				}
-
-			}
-
-			library.lights[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function parseLightTechnique( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'directional':
-					case 'point':
-					case 'spot':
-					case 'ambient':
-
-						data.technique = child.nodeName;
-						data.parameters = parseLightParameters( child );
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseLightParameters( xml ) {
-
-			var data = {};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'color':
-						var array = parseFloats( child.textContent );
-						data.color = new THREE.Color().fromArray( array );
-						break;
-
-					case 'falloff_angle':
-						data.falloffAngle = parseFloat( child.textContent );
-						break;
-
-					case 'quadratic_attenuation':
-						var f = parseFloat( child.textContent );
-						data.distance = f ? Math.sqrt( 1 / f ) : 0;
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function buildLight( data ) {
-
-			var light;
-
-			switch ( data.technique ) {
-
-				case 'directional':
-					light = new THREE.DirectionalLight();
-					break;
-
-				case 'point':
-					light = new THREE.PointLight();
-					break;
-
-				case 'spot':
-					light = new THREE.SpotLight();
-					break;
-
-				case 'ambient':
-					light = new THREE.AmbientLight();
-					break;
-
-			}
-
-			if ( data.parameters.color ) light.color.copy( data.parameters.color );
-			if ( data.parameters.distance ) light.distance = data.parameters.distance;
-
-			return light;
-
-		}
-
-		function getLight( id ) {
-
-			var data = library.lights[ id ];
-
-			if ( data !== undefined ) {
-
-				return getBuild( data, buildLight );
-
-			}
-
-			console.warn( 'THREE.ColladaLoader: Couldn\'t find light with ID:', id );
-
-			return null;
-
-		}
-
-		// geometry
-
-		function parseGeometry( xml ) {
-
-			var data = {
-				name: xml.getAttribute( 'name' ),
-				sources: {},
-				vertices: {},
-				primitives: []
-			};
-
-			var mesh = getElementsByTagName( xml, 'mesh' )[ 0 ];
-
-			// the following tags inside geometry are not supported yet (see https://github.com/mrdoob/three.js/pull/12606): convex_mesh, spline, brep
-			if ( mesh === undefined ) return;
-
-			for ( var i = 0; i < mesh.childNodes.length; i ++ ) {
-
-				var child = mesh.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				var id = child.getAttribute( 'id' );
-
-				switch ( child.nodeName ) {
-
-					case 'source':
-						data.sources[ id ] = parseSource( child );
-						break;
-
-					case 'vertices':
-						// data.sources[ id ] = data.sources[ parseId( getElementsByTagName( child, 'input' )[ 0 ].getAttribute( 'source' ) ) ];
-						data.vertices = parseGeometryVertices( child );
-						break;
-
-					case 'polygons':
-						console.warn( 'THREE.ColladaLoader: Unsupported primitive type: ', child.nodeName );
-						break;
-
-					case 'lines':
-					case 'linestrips':
-					case 'polylist':
-					case 'triangles':
-						data.primitives.push( parseGeometryPrimitive( child ) );
-						break;
-
-					default:
-						console.log( child );
-
-				}
-
-			}
-
-			library.geometries[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function parseSource( xml ) {
-
-			var data = {
-				array: [],
-				stride: 3
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'float_array':
-						data.array = parseFloats( child.textContent );
-						break;
-
-					case 'Name_array':
-						data.array = parseStrings( child.textContent );
-						break;
-
-					case 'technique_common':
-						var accessor = getElementsByTagName( child, 'accessor' )[ 0 ];
-
-						if ( accessor !== undefined ) {
-
-							data.stride = parseInt( accessor.getAttribute( 'stride' ) );
-
-						}
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseGeometryVertices( xml ) {
-
-			var data = {};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				data[ child.getAttribute( 'semantic' ) ] = parseId( child.getAttribute( 'source' ) );
-
-			}
-
-			return data;
-
-		}
-
-		function parseGeometryPrimitive( xml ) {
-
-			var primitive = {
-				type: xml.nodeName,
-				material: xml.getAttribute( 'material' ),
-				count: parseInt( xml.getAttribute( 'count' ) ),
-				inputs: {},
-				stride: 0
-			};
-
-			for ( var i = 0, l = xml.childNodes.length; i < l; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'input':
-						var id = parseId( child.getAttribute( 'source' ) );
-						var semantic = child.getAttribute( 'semantic' );
-						var offset = parseInt( child.getAttribute( 'offset' ) );
-						primitive.inputs[ semantic ] = { id: id, offset: offset };
-						primitive.stride = Math.max( primitive.stride, offset + 1 );
-						break;
-
-					case 'vcount':
-						primitive.vcount = parseInts( child.textContent );
-						break;
-
-					case 'p':
-						primitive.p = parseInts( child.textContent );
-						break;
-
-				}
-
-			}
-
-			return primitive;
-
-		}
-
-		function groupPrimitives( primitives ) {
-
-			var build = {};
-
-			for ( var i = 0; i < primitives.length; i ++ ) {
-
-				var primitive = primitives[ i ];
-
-				if ( build[ primitive.type ] === undefined ) build[ primitive.type ] = [];
-
-				build[ primitive.type ].push( primitive );
-
-			}
-
-			return build;
-
-		}
-
-		function buildGeometry( data ) {
-
-			var build = {};
-
-			var sources = data.sources;
-			var vertices = data.vertices;
-			var primitives = data.primitives;
-
-			if ( primitives.length === 0 ) return {};
-
-			// our goal is to create one buffer geoemtry for a single type of primitives
-			// first, we group all primitives by their type
-
-			var groupedPrimitives = groupPrimitives( primitives );
-
-			for ( var type in groupedPrimitives ) {
-
-				// second, we create for each type of primitives (polylist,triangles or lines) a buffer geometry
-
-				build[ type ] = buildGeometryType( groupedPrimitives[ type ], sources, vertices );
-
-			}
-
-			return build;
-
-		}
-
-		function buildGeometryType( primitives, sources, vertices ) {
-
-			var build = {};
-
-			var position = { array: [], stride: 0 };
-			var normal = { array: [], stride: 0 };
-			var uv = { array: [], stride: 0 };
-			var color = { array: [], stride: 0 };
-
-			var skinIndex = { array: [], stride: 4 };
-			var skinWeight = { array: [], stride: 4 };
-
-			var geometry = new THREE.BufferGeometry();
-
-			var materialKeys = [];
-
-			var start = 0, count = 0;
-
-			for ( var p = 0; p < primitives.length; p ++ ) {
-
-				var primitive = primitives[ p ];
-				var inputs = primitive.inputs;
-				var triangleCount = 1;
-
-				if ( primitive.vcount && primitive.vcount[ 0 ] === 4 ) {
-
-					triangleCount = 2; // one quad -> two triangles
-
-				}
-
-				// groups
-
-				if ( primitive.type === 'lines' || primitive.type === 'linestrips' ) {
-
-					count = primitive.count * 2;
-
-				} else {
-
-					count = primitive.count * 3 * triangleCount;
-
-				}
-
-				geometry.addGroup( start, count, p );
-				start += count;
-
-				// material
-
-				if ( primitive.material ) {
-
-					materialKeys.push( primitive.material );
-
-				}
-
-				// geometry data
-
-				for ( var name in inputs ) {
-
-					var input = inputs[ name ];
-
-					switch ( name )	{
-
-						case 'VERTEX':
-							for ( var key in vertices ) {
-
-								var id = vertices[ key ];
-
-								switch ( key ) {
-
-									case 'POSITION':
-										buildGeometryData( primitive, sources[ id ], input.offset, position.array );
-										position.stride = sources[ id ].stride;
-
-										if ( sources.skinWeights && sources.skinIndices ) {
-
-											buildGeometryData( primitive, sources.skinIndices, input.offset, skinIndex.array );
-											buildGeometryData( primitive, sources.skinWeights, input.offset, skinWeight.array );
-
-										}
-										break;
-
-									case 'NORMAL':
-										buildGeometryData( primitive, sources[ id ], input.offset, normal.array );
-										normal.stride = sources[ id ].stride;
-										break;
-
-									case 'COLOR':
-										buildGeometryData( primitive, sources[ id ], input.offset, color.array );
-										color.stride = sources[ id ].stride;
-										break;
-
-									case 'TEXCOORD':
-										buildGeometryData( primitive, sources[ id ], input.offset, uv.array );
-										uv.stride = sources[ id ].stride;
-										break;
-
-									default:
-										console.warn( 'THREE.ColladaLoader: Semantic "%s" not handled in geometry build process.', key );
-
-								}
-
-							}
-							break;
-
-						case 'NORMAL':
-							buildGeometryData( primitive, sources[ input.id ], input.offset, normal.array );
-							normal.stride = sources[ input.id ].stride;
-							break;
-
-						case 'COLOR':
-							buildGeometryData( primitive, sources[ input.id ], input.offset, color.array );
-							color.stride = sources[ input.id ].stride;
-							break;
-
-						case 'TEXCOORD':
-							buildGeometryData( primitive, sources[ input.id ], input.offset, uv.array );
-							uv.stride = sources[ input.id ].stride;
-							break;
-
-					}
-
-				}
-
-			}
-
-			// build geometry
-
-			if ( position.array.length > 0 ) geometry.addAttribute( 'position', new THREE.Float32BufferAttribute( position.array, position.stride ) );
-			if ( normal.array.length > 0 ) geometry.addAttribute( 'normal', new THREE.Float32BufferAttribute( normal.array, normal.stride ) );
-			if ( color.array.length > 0 ) geometry.addAttribute( 'color', new THREE.Float32BufferAttribute( color.array, color.stride ) );
-			if ( uv.array.length > 0 ) geometry.addAttribute( 'uv', new THREE.Float32BufferAttribute( uv.array, uv.stride ) );
-
-			if ( skinIndex.array.length > 0 ) geometry.addAttribute( 'skinIndex', new THREE.Float32BufferAttribute( skinIndex.array, skinIndex.stride ) );
-			if ( skinWeight.array.length > 0 ) geometry.addAttribute( 'skinWeight', new THREE.Float32BufferAttribute( skinWeight.array, skinWeight.stride ) );
-
-			build.data = geometry;
-			build.type = primitives[ 0 ].type;
-			build.materialKeys = materialKeys;
-
-			return build;
-
-		}
-
-		function buildGeometryData( primitive, source, offset, array ) {
-
-			var indices = primitive.p;
-			var stride = primitive.stride;
-			var vcount = primitive.vcount;
-
-			function pushVector( i ) {
-
-				var index = indices[ i + offset ] * sourceStride;
-				var length = index + sourceStride;
-
-				for ( ; index < length; index ++ ) {
-
-					array.push( sourceArray[ index ] );
-
-				}
-
-			}
-
-			var maxcount = 0;
-
-			var sourceArray = source.array;
-			var sourceStride = source.stride;
-
-			if ( primitive.vcount !== undefined ) {
-
-				var index = 0;
-
-				for ( var i = 0, l = vcount.length; i < l; i ++ ) {
-
-					var count = vcount[ i ];
-
-					if ( count === 4 ) {
-
-						var a = index + stride * 0;
-						var b = index + stride * 1;
-						var c = index + stride * 2;
-						var d = index + stride * 3;
-
-						pushVector( a ); pushVector( b ); pushVector( d );
-						pushVector( b ); pushVector( c ); pushVector( d );
-
-					} else if ( count === 3 ) {
-
-						var a = index + stride * 0;
-						var b = index + stride * 1;
-						var c = index + stride * 2;
-
-						pushVector( a ); pushVector( b ); pushVector( c );
-
-					} else {
-
-						maxcount = Math.max( maxcount, count );
-
-					}
-
-					index += stride * count;
-
-				}
-
-				if ( maxcount > 0 ) {
-
-					console.log( 'THREE.ColladaLoader: Geometry has faces with more than 4 vertices.' );
-
-				}
-
-			} else {
-
-				for ( var i = 0, l = indices.length; i < l; i += stride ) {
-
-					pushVector( i );
-
-				}
-
-			}
-
-		}
-
-		function getGeometry( id ) {
-
-			return getBuild( library.geometries[ id ], buildGeometry );
-
-		}
-
-		// kinematics
-
-		function parseKinematicsModel( xml ) {
-
-			var data = {
-				name: xml.getAttribute( 'name' ) || '',
-				joints: {},
-				links: []
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'technique_common':
-						parseKinematicsTechniqueCommon( child, data );
-						break;
-
-				}
-
-			}
-
-			library.kinematicsModels[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function buildKinematicsModel( data ) {
-
-			if ( data.build !== undefined ) return data.build;
-
-			return data;
-
-		}
-
-		function getKinematicsModel( id ) {
-
-			return getBuild( library.kinematicsModels[ id ], buildKinematicsModel );
-
-		}
-
-		function parseKinematicsTechniqueCommon( xml, data ) {
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'joint':
-						data.joints[ child.getAttribute( 'sid' ) ] = parseKinematicsJoint( child );
-						break;
-
-					case 'link':
-						data.links.push( parseKinematicsLink( child ) );
-						break;
-
-				}
-
-			}
-
-		}
-
-		function parseKinematicsJoint( xml ) {
-
-			var data;
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'prismatic':
-					case 'revolute':
-						data = parseKinematicsJointParameter( child );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseKinematicsJointParameter( xml, data ) {
-
-			var data = {
-				sid: xml.getAttribute( 'sid' ),
-				name: xml.getAttribute( 'name' ) || '',
-				axis: new THREE.Vector3(),
-				limits: {
-					min: 0,
-					max: 0
-				},
-				type: xml.nodeName,
-				static: false,
-				zeroPosition: 0,
-				middlePosition: 0
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'axis':
-						var array = parseFloats( child.textContent );
-						data.axis.fromArray( array );
-						break;
-					case 'limits':
-						var max = child.getElementsByTagName( 'max' )[ 0 ];
-						var min = child.getElementsByTagName( 'min' )[ 0 ];
-
-						data.limits.max = parseFloat( max.textContent );
-						data.limits.min = parseFloat( min.textContent );
-						break;
-
-				}
-
-			}
-
-			// if min is equal to or greater than max, consider the joint static
-
-			if ( data.limits.min >= data.limits.max ) {
-
-				data.static = true;
-
-			}
-
-			// calculate middle position
-
-			data.middlePosition = ( data.limits.min + data.limits.max ) / 2.0;
-
-			return data;
-
-		}
-
-		function parseKinematicsLink( xml ) {
-
-			var data = {
-				sid: xml.getAttribute( 'sid' ),
-				name: xml.getAttribute( 'name' ) || '',
-				attachments: [],
-				transforms: []
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'attachment_full':
-						data.attachments.push( parseKinematicsAttachment( child ) );
-						break;
-
-					case 'matrix':
-					case 'translate':
-					case 'rotate':
-						data.transforms.push( parseKinematicsTransform( child ) );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseKinematicsAttachment( xml ) {
-
-			var data = {
-				joint: xml.getAttribute( 'joint' ).split( '/' ).pop(),
-				transforms: [],
-				links: []
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'link':
-						data.links.push( parseKinematicsLink( child ) );
-						break;
-
-					case 'matrix':
-					case 'translate':
-					case 'rotate':
-						data.transforms.push( parseKinematicsTransform( child ) );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function parseKinematicsTransform( xml ) {
-
-			var data = {
-				type: xml.nodeName
-			};
-
-			var array = parseFloats( xml.textContent );
-
-			switch ( data.type ) {
-
-				case 'matrix':
-					data.obj = new THREE.Matrix4();
-					data.obj.fromArray( array ).transpose();
-					break;
-
-				case 'translate':
-					data.obj = new THREE.Vector3();
-					data.obj.fromArray( array );
-					break;
-
-				case 'rotate':
-					data.obj = new THREE.Vector3();
-					data.obj.fromArray( array );
-					data.angle = THREE.Math.degToRad( array[ 3 ] );
-					break;
-
-			}
-
-			return data;
-
-		}
-
-		function parseKinematicsScene( xml ) {
-
-			var data = {
-				bindJointAxis: []
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'bind_joint_axis':
-						data.bindJointAxis.push( parseKinematicsBindJointAxis( child ) );
-						break;
-
-				}
-
-			}
-
-			library.kinematicsScenes[ parseId( xml.getAttribute( 'url' ) ) ] = data;
-
-		}
-
-		function parseKinematicsBindJointAxis( xml ) {
-
-			var data = {
-				target: xml.getAttribute( 'target' ).split( '/' ).pop()
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'axis':
-						var param = child.getElementsByTagName( 'param' )[ 0 ];
-						data.axis = param.textContent;
-						var tmpJointIndex = data.axis.split( 'inst_' ).pop().split( 'axis' )[ 0 ];
-						data.jointIndex = tmpJointIndex.substr( 0, tmpJointIndex.length - 1 );
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function buildKinematicsScene( data ) {
-
-			if ( data.build !== undefined ) return data.build;
-
-			return data;
-
-		}
-
-		function getKinematicsScene( id ) {
-
-			return getBuild( library.kinematicsScenes[ id ], buildKinematicsScene );
-
-		}
-
-		function setupKinematics() {
-
-			var kinematicsModelId = Object.keys( library.kinematicsModels )[ 0 ];
-			var kinematicsSceneId = Object.keys( library.kinematicsScenes )[ 0 ];
-			var visualSceneId = Object.keys( library.visualScenes )[ 0 ];
-
-			if ( kinematicsModelId === undefined || kinematicsSceneId === undefined ) return;
-
-			var kinematicsModel = getKinematicsModel( kinematicsModelId );
-			var kinematicsScene = getKinematicsScene( kinematicsSceneId );
-			var visualScene = getVisualScene( visualSceneId );
-
-			var bindJointAxis = kinematicsScene.bindJointAxis;
-			var jointMap = {};
-
-			for ( var i = 0, l = bindJointAxis.length; i < l; i ++ ) {
-
-				var axis = bindJointAxis[ i ];
-
-				// the result of the following query is an element of type 'translate', 'rotate','scale' or 'matrix'
-
-				var targetElement = collada.querySelector( '[sid="' + axis.target + '"]' );
-
-				if ( targetElement ) {
-
-					// get the parent of the transfrom element
-
-					var parentVisualElement = targetElement.parentElement;
-
-					// connect the joint of the kinematics model with the element in the visual scene
-
-					connect( axis.jointIndex, parentVisualElement );
-
-				}
-
-			}
-
-			function connect( jointIndex, visualElement ) {
-
-				var visualElementName = visualElement.getAttribute( 'name' );
-				var joint = kinematicsModel.joints[ jointIndex ];
-
-				visualScene.traverse( function ( object ) {
-
-					if ( object.name === visualElementName ) {
-
-						jointMap[ jointIndex ] = {
-							object: object,
-							transforms: buildTransformList( visualElement ),
-							joint: joint,
-							position: joint.zeroPosition
-						};
-
-					}
-
-				} );
-
-			}
-
-			var m0 = new THREE.Matrix4();
-
-			kinematics = {
-
-				joints: kinematicsModel && kinematicsModel.joints,
-
-				getJointValue: function ( jointIndex ) {
-
-					var jointData = jointMap[ jointIndex ];
-
-					if ( jointData ) {
-
-						return jointData.position;
-
-					} else {
-
-						console.warn( 'THREE.ColladaLoader: Joint ' + jointIndex + ' doesn\'t exist.' );
-
-					}
-
-				},
-
-				setJointValue: function ( jointIndex, value ) {
-
-					var jointData = jointMap[ jointIndex ];
-
-					if ( jointData ) {
-
-						var joint = jointData.joint;
-
-						if ( value > joint.limits.max || value < joint.limits.min ) {
-
-							console.warn( 'THREE.ColladaLoader: Joint ' + jointIndex + ' value ' + value + ' outside of limits (min: ' + joint.limits.min + ', max: ' + joint.limits.max + ').' );
-
-						} else if ( joint.static ) {
-
-							console.warn( 'THREE.ColladaLoader: Joint ' + jointIndex + ' is static.' );
-
-						} else {
-
-							var object = jointData.object;
-							var axis = joint.axis;
-							var transforms = jointData.transforms;
-
-							matrix.identity();
-
-							// each update, we have to apply all transforms in the correct order
-
-							for ( var i = 0; i < transforms.length; i ++ ) {
-
-								var transform = transforms[ i ];
-
-								// if there is a connection of the transform node with a joint, apply the joint value
-
-								if ( transform.sid && transform.sid.indexOf( jointIndex ) !== - 1 ) {
-
-									switch ( joint.type ) {
-
-										case 'revolute':
-											matrix.multiply( m0.makeRotationAxis( axis, THREE.Math.degToRad( value ) ) );
-											break;
-
-										case 'prismatic':
-											matrix.multiply( m0.makeTranslation( axis.x * value, axis.y * value, axis.z * value ) );
-											break;
-
-										default:
-											console.warn( 'THREE.ColladaLoader: Unknown joint type: ' + joint.type );
-											break;
-
-									}
-
-								} else {
-
-									switch ( transform.type ) {
-
-										case 'matrix':
-											matrix.multiply( transform.obj );
-											break;
-
-										case 'translate':
-											matrix.multiply( m0.makeTranslation( transform.obj.x, transform.obj.y, transform.obj.z ) );
-											break;
-
-										case 'scale':
-											matrix.scale( transform.obj );
-											break;
-
-										case 'rotate':
-											matrix.multiply( m0.makeRotationAxis( transform.obj, transform.angle ) );
-											break;
-
-									}
-
-								}
-
-							}
-
-							object.matrix.copy( matrix );
-							object.matrix.decompose( object.position, object.quaternion, object.scale );
-
-							jointMap[ jointIndex ].position = value;
-
-						}
-
-					} else {
-
-						console.log( 'THREE.ColladaLoader: ' + jointIndex + ' does not exist.' );
-
-					}
-
-				}
-
-			};
-
-		}
-
-		function buildTransformList( node ) {
-
-			var transforms = [];
-
-			var xml = collada.querySelector( '[id="' + node.id + '"]' );
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'matrix':
-						var array = parseFloats( child.textContent );
-						var matrix = new THREE.Matrix4().fromArray( array ).transpose();
-						transforms.push( {
-							sid: child.getAttribute( 'sid' ),
-							type: child.nodeName,
-							obj: matrix
-						} );
-						break;
-
-					case 'translate':
-					case 'scale':
-						var array = parseFloats( child.textContent );
-						var vector = new THREE.Vector3().fromArray( array );
-						transforms.push( {
-							sid: child.getAttribute( 'sid' ),
-							type: child.nodeName,
-							obj: vector
-						} );
-						break;
-
-					case 'rotate':
-						var array = parseFloats( child.textContent );
-						var vector = new THREE.Vector3().fromArray( array );
-						var angle = THREE.Math.degToRad( array[ 3 ] );
-						transforms.push( {
-							sid: child.getAttribute( 'sid' ),
-							type: child.nodeName,
-							obj: vector,
-							angle: angle
-						} );
-						break;
-
-				}
-
-			}
-
-			return transforms;
-
-		}
-
-		// nodes
-
-		function prepareNodes( xml ) {
-
-			var elements = xml.getElementsByTagName( 'node' );
-
-			// ensure all node elements have id attributes
-
-			for ( var i = 0; i < elements.length; i ++ ) {
-
-				var element = elements[ i ];
-
-				if ( element.hasAttribute( 'id' ) === false ) {
-
-					element.setAttribute( 'id', generateId() );
-
-				}
-
-			}
-
-		}
-
-		var matrix = new THREE.Matrix4();
-		var vector = new THREE.Vector3();
-
-		function parseNode( xml ) {
-
-			var data = {
-				name: xml.getAttribute( 'name' ) || '',
-				type: xml.getAttribute( 'type' ),
-				id: xml.getAttribute( 'id' ),
-				sid: xml.getAttribute( 'sid' ),
-				matrix: new THREE.Matrix4(),
-				nodes: [],
-				instanceCameras: [],
-				instanceControllers: [],
-				instanceLights: [],
-				instanceGeometries: [],
-				instanceNodes: [],
-				transforms: {}
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				if ( child.nodeType !== 1 ) continue;
-
-				switch ( child.nodeName ) {
-
-					case 'node':
-						data.nodes.push( child.getAttribute( 'id' ) );
-						parseNode( child );
-						break;
-
-					case 'instance_camera':
-						data.instanceCameras.push( parseId( child.getAttribute( 'url' ) ) );
-						break;
-
-					case 'instance_controller':
-						data.instanceControllers.push( parseNodeInstance( child ) );
-						break;
-
-					case 'instance_light':
-						data.instanceLights.push( parseId( child.getAttribute( 'url' ) ) );
-						break;
-
-					case 'instance_geometry':
-						data.instanceGeometries.push( parseNodeInstance( child ) );
-						break;
-
-					case 'instance_node':
-						data.instanceNodes.push( parseId( child.getAttribute( 'url' ) ) );
-						break;
-
-					case 'matrix':
-						var array = parseFloats( child.textContent );
-						data.matrix.multiply( matrix.fromArray( array ).transpose() );
-						data.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;
-						break;
-
-					case 'translate':
-						var array = parseFloats( child.textContent );
-						vector.fromArray( array );
-						data.matrix.multiply( matrix.makeTranslation( vector.x, vector.y, vector.z ) );
-						data.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;
-						break;
-
-					case 'rotate':
-						var array = parseFloats( child.textContent );
-						var angle = THREE.Math.degToRad( array[ 3 ] );
-						data.matrix.multiply( matrix.makeRotationAxis( vector.fromArray( array ), angle ) );
-						data.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;
-						break;
-
-					case 'scale':
-						var array = parseFloats( child.textContent );
-						data.matrix.scale( vector.fromArray( array ) );
-						data.transforms[ child.getAttribute( 'sid' ) ] = child.nodeName;
-						break;
-
-					case 'extra':
-						break;
-
-					default:
-						console.log( child );
-
-				}
-
-			}
-
-			library.nodes[ data.id ] = data;
-
-			return data;
-
-		}
-
-		function parseNodeInstance( xml ) {
-
-			var data = {
-				id: parseId( xml.getAttribute( 'url' ) ),
-				materials: {},
-				skeletons: []
-			};
-
-			for ( var i = 0; i < xml.childNodes.length; i ++ ) {
-
-				var child = xml.childNodes[ i ];
-
-				switch ( child.nodeName ) {
-
-					case 'bind_material':
-						var instances = child.getElementsByTagName( 'instance_material' );
-
-						for ( var j = 0; j < instances.length; j ++ ) {
-
-							var instance = instances[ j ];
-							var symbol = instance.getAttribute( 'symbol' );
-							var target = instance.getAttribute( 'target' );
-
-							data.materials[ symbol ] = parseId( target );
-
-						}
-
-						break;
-
-					case 'skeleton':
-						data.skeletons.push( parseId( child.textContent ) );
-						break;
-
-					default:
-						break;
-
-				}
-
-			}
-
-			return data;
-
-		}
-
-		function buildSkeleton( skeletons, joints ) {
-
-			var boneData = [];
-			var sortedBoneData = [];
-
-			var i, j, data;
-
-			// a skeleton can have multiple root bones. collada expresses this
-			// situtation with multiple "skeleton" tags per controller instance
-
-			for ( i = 0; i < skeletons.length; i ++ ) {
-
-				var skeleton = skeletons[ i ];
-				var root = getNode( skeleton );
-
-				// setup bone data for a single bone hierarchy
-
-				buildBoneHierarchy( root, joints, boneData );
-
-			}
-
-			// sort bone data (the order is defined in the corresponding controller)
-
-			for ( i = 0; i < joints.length; i ++ ) {
-
-				for ( j = 0; j < boneData.length; j ++ ) {
-
-					data = boneData[ j ];
-
-					if ( data.bone.name === joints[ i ].name ) {
-
-						sortedBoneData[ i ] = data;
-						data.processed = true;
-						break;
-
-					}
-
-				}
-
-			}
-
-			// add unprocessed bone data at the end of the list
-
-			for ( i = 0; i < boneData.length; i ++ ) {
-
-				data = boneData[ i ];
-
-				if ( data.processed === false ) {
-
-					sortedBoneData.push( data );
-					data.processed = true;
-
-				}
-
-			}
-
-			// setup arrays for skeleton creation
-
-			var bones = [];
-			var boneInverses = [];
-
-			for ( i = 0; i < sortedBoneData.length; i ++ ) {
-
-				data = sortedBoneData[ i ];
-
-				bones.push( data.bone );
-				boneInverses.push( data.boneInverse );
-
-			}
-
-			return new THREE.Skeleton( bones, boneInverses );
-
-		}
-
-		function buildBoneHierarchy( root, joints, boneData ) {
-
-			// setup bone data from visual scene
-
-			root.traverse( function ( object ) {
-
-				if ( object.isBone === true ) {
-
-					var boneInverse;
-
-					// retrieve the boneInverse from the controller data
-
-					for ( var i = 0; i < joints.length; i ++ ) {
-
-						var joint = joints[ i ];
-
-						if ( joint.name === object.name ) {
-
-							boneInverse = joint.boneInverse;
-							break;
-
-						}
-
-					}
-
-					if ( boneInverse === undefined ) {
-
-						// Unfortunately, there can be joints in the visual scene that are not part of the
-						// corresponding controller. In this case, we have to create a dummy boneInverse matrix
-						// for the respective bone. This bone won't affect any vertices, because there are no skin indices
-						// and weights defined for it. But we still have to add the bone to the sorted bone list in order to
-						// ensure a correct animation of the model.
-
-						 boneInverse = new THREE.Matrix4();
-
-					}
-
-					boneData.push( { bone: object, boneInverse: boneInverse, processed: false } );
-
-				}
-
-			} );
-
-		}
-
-		function buildNode( data ) {
-
-			var objects = [];
-
-			var matrix = data.matrix;
-			var nodes = data.nodes;
-			var type = data.type;
-			var instanceCameras = data.instanceCameras;
-			var instanceControllers = data.instanceControllers;
-			var instanceLights = data.instanceLights;
-			var instanceGeometries = data.instanceGeometries;
-			var instanceNodes = data.instanceNodes;
-
-			// nodes
-
-			for ( var i = 0, l = nodes.length; i < l; i ++ ) {
-
-				objects.push( getNode( nodes[ i ] ) );
-
-			}
-
-			// instance cameras
-
-			for ( var i = 0, l = instanceCameras.length; i < l; i ++ ) {
-
-				var instanceCamera = getCamera( instanceCameras[ i ] );
-
-				if ( instanceCamera !== null ) {
-
-					objects.push( instanceCamera.clone() );
-
-				}
-
-			}
-
-			// instance controllers
-
-			for ( var i = 0, l = instanceControllers.length; i < l; i ++ ) {
-
-				var instance = instanceControllers[ i ];
-				var controller = getController( instance.id );
-				var geometries = getGeometry( controller.id );
-				var newObjects = buildObjects( geometries, instance.materials );
-
-				var skeletons = instance.skeletons;
-				var joints = controller.skin.joints;
-
-				var skeleton = buildSkeleton( skeletons, joints );
-
-				for ( var j = 0, jl = newObjects.length; j < jl; j ++ ) {
-
-					var object = newObjects[ j ];
-
-					if ( object.isSkinnedMesh ) {
-
-						object.bind( skeleton, controller.skin.bindMatrix );
-						object.normalizeSkinWeights();
-
-					}
-
-					objects.push( object );
-
-				}
-
-			}
-
-			// instance lights
-
-			for ( var i = 0, l = instanceLights.length; i < l; i ++ ) {
-
-				var instanceLight = getLight( instanceLights[ i ] );
-
-				if ( instanceLight !== null ) {
-
-					objects.push( instanceLight.clone() );
-
-				}
-
-			}
-
-			// instance geometries
-
-			for ( var i = 0, l = instanceGeometries.length; i < l; i ++ ) {
-
-				var instance = instanceGeometries[ i ];
-
-				// a single geometry instance in collada can lead to multiple object3Ds.
-				// this is the case when primitives are combined like triangles and lines
-
-				var geometries = getGeometry( instance.id );
-				var newObjects = buildObjects( geometries, instance.materials );
-
-				for ( var j = 0, jl = newObjects.length; j < jl; j ++ ) {
-
-					objects.push( newObjects[ j ] );
-
-				}
-
-			}
-
-			// instance nodes
-
-			for ( var i = 0, l = instanceNodes.length; i < l; i ++ ) {
-
-				objects.push( getNode( instanceNodes[ i ] ).clone() );
-
-			}
-
-			var object;
-
-			if ( nodes.length === 0 && objects.length === 1 ) {
-
-				object = objects[ 0 ];
-
-			} else {
-
-				object = ( type === 'JOINT' ) ? new THREE.Bone() : new THREE.Group();
-
-				for ( var i = 0; i < objects.length; i ++ ) {
-
-					object.add( objects[ i ] );
-
-				}
-
-			}
-
-			object.name = ( type === 'JOINT' ) ? data.sid : data.name;
-			object.matrix.copy( matrix );
-			object.matrix.decompose( object.position, object.quaternion, object.scale );
-
-			return object;
-
-		}
-
-		function resolveMaterialBinding( keys, instanceMaterials ) {
-
-			var materials = [];
-
-			for ( var i = 0, l = keys.length; i < l; i ++ ) {
-
-				var id = instanceMaterials[ keys[ i ] ];
-				materials.push( getMaterial( id ) );
-
-			}
-
-			return materials;
-
-		}
-
-		function buildObjects( geometries, instanceMaterials ) {
-
-			var objects = [];
-
-			for ( var type in geometries ) {
-
-				var geometry = geometries[ type ];
-
-				var materials = resolveMaterialBinding( geometry.materialKeys, instanceMaterials );
-
-				// handle case if no materials are defined
-
-				if ( materials.length === 0 ) {
-
-					if ( type === 'lines' || type === 'linestrips' ) {
-
-						materials.push( new THREE.LineBasicMaterial() );
-
-					} else {
-
-						materials.push( new THREE.MeshPhongMaterial() );
-
-					}
-
-				}
-
-				// regard skinning
-
-				var skinning = ( geometry.data.attributes.skinIndex !== undefined );
-
-				if ( skinning ) {
-
-					for ( var i = 0, l = materials.length; i < l; i ++ ) {
-
-						materials[ i ].skinning = true;
-
-					}
-
-				}
-
-				// choose between a single or multi materials (material array)
-
-				var material = ( materials.length === 1 ) ? materials[ 0 ] : materials;
-
-				// now create a specific 3D object
-
-				var object;
-
-				switch ( type ) {
-
-					case 'lines':
-						object = new THREE.LineSegments( geometry.data, material );
-						break;
-
-					case 'linestrips':
-						object = new THREE.Line( geometry.data, material );
-						break;
-
-					case 'triangles':
-					case 'polylist':
-						if ( skinning ) {
-
-							object = new THREE.SkinnedMesh( geometry.data, material );
-
-						} else {
-
-							object = new THREE.Mesh( geometry.data, material );
-
-						}
-						break;
-
-				}
-
-				objects.push( object );
-
-			}
-
-			return objects;
-
-		}
-
-		function getNode( id ) {
-
-			return getBuild( library.nodes[ id ], buildNode );
-
-		}
-
-		// visual scenes
-
-		function parseVisualScene( xml ) {
-
-			var data = {
-				name: xml.getAttribute( 'name' ),
-				children: []
-			};
-
-			prepareNodes( xml );
-
-			var elements = getElementsByTagName( xml, 'node' );
-
-			for ( var i = 0; i < elements.length; i ++ ) {
-
-				data.children.push( parseNode( elements[ i ] ) );
-
-			}
-
-			library.visualScenes[ xml.getAttribute( 'id' ) ] = data;
-
-		}
-
-		function buildVisualScene( data ) {
-
-			var group = new THREE.Group();
-			group.name = data.name;
-
-			var children = data.children;
-
-			for ( var i = 0; i < children.length; i ++ ) {
-
-				var child = children[ i ];
-
-				if ( child.id === null ) {
-
-					group.add( buildNode( child ) );
-
-				} else {
-
-					// if there is an ID, let's try to get the finished build (e.g. joints are already build)
-
-					group.add( getNode( child.id ) );
-
-				}
-
-			}
-
-			return group;
-
-		}
-
-		function getVisualScene( id ) {
-
-			return getBuild( library.visualScenes[ id ], buildVisualScene );
-
-		}
-
-		// scenes
-
-		function parseScene( xml ) {
-
-			var instance = getElementsByTagName( xml, 'instance_visual_scene' )[ 0 ];
-			return getVisualScene( parseId( instance.getAttribute( 'url' ) ) );
-
-		}
-
-		function setupAnimations() {
-
-			var clips = library.clips;
-
-			if ( isEmpty( clips ) === true ) {
-
-				if ( isEmpty( library.animations ) === false ) {
-
-					// if there are animations but no clips, we create a default clip for playback
-
-					var tracks = [];
-
-					for ( var id in library.animations ) {
-
-						var animationTracks = getAnimation( id );
-
-						for ( var i = 0, l = animationTracks.length; i < l; i ++ ) {
-
-							tracks.push( animationTracks[ i ] );
-
-						}
-
-					}
-
-					animations.push( new THREE.AnimationClip( 'default', - 1, tracks ) );
-
-				}
-
-			} else {
-
-				for ( var id in clips ) {
-
-					animations.push( getAnimationClip( id ) );
-
-				}
-
-			}
-
-		}
-
-		console.time( 'THREE.ColladaLoader' );
-
-		if ( text.length === 0 ) {
-
-			return { scene: new THREE.Scene() };
-
-		}
-
-		console.time( 'THREE.ColladaLoader: DOMParser' );
-
-		var xml = new DOMParser().parseFromString( text, 'application/xml' );
-
-		console.timeEnd( 'THREE.ColladaLoader: DOMParser' );
-
-		var collada = getElementsByTagName( xml, 'COLLADA' )[ 0 ];
-
-		// metadata
-
-		var version = collada.getAttribute( 'version' );
-		console.log( 'THREE.ColladaLoader: File version', version );
-
-		var asset = parseAsset( getElementsByTagName( collada, 'asset' )[ 0 ] );
-		var textureLoader = new THREE.TextureLoader( this.manager );
-		textureLoader.setPath( path ).setCrossOrigin( this.crossOrigin );
-
-		//
-
-		var animations = [];
-		var kinematics = {};
-		var count = 0;
-
-		//
-
-		var library = {
-			animations: {},
-			clips: {},
-			controllers: {},
-			images: {},
-			effects: {},
-			materials: {},
-			cameras: {},
-			lights: {},
-			geometries: {},
-			nodes: {},
-			visualScenes: {},
-			kinematicsModels: {},
-			kinematicsScenes: {}
-		};
-
-		console.time( 'THREE.ColladaLoader: Parse' );
-
-		parseLibrary( collada, 'library_animations', 'animation', parseAnimation );
-		parseLibrary( collada, 'library_animation_clips', 'animation_clip', parseAnimationClip );
-		parseLibrary( collada, 'library_controllers', 'controller', parseController );
-		parseLibrary( collada, 'library_images', 'image', parseImage );
-		parseLibrary( collada, 'library_effects', 'effect', parseEffect );
-		parseLibrary( collada, 'library_materials', 'material', parseMaterial );
-		parseLibrary( collada, 'library_cameras', 'camera', parseCamera );
-		parseLibrary( collada, 'library_lights', 'light', parseLight );
-		parseLibrary( collada, 'library_geometries', 'geometry', parseGeometry );
-		parseLibrary( collada, 'library_nodes', 'node', parseNode );
-		parseLibrary( collada, 'library_visual_scenes', 'visual_scene', parseVisualScene );
-		parseLibrary( collada, 'library_kinematics_models', 'kinematics_model', parseKinematicsModel );
-		parseLibrary( collada, 'scene', 'instance_kinematics_scene', parseKinematicsScene );
-
-		console.timeEnd( 'THREE.ColladaLoader: Parse' );
-
-		console.time( 'THREE.ColladaLoader: Build' );
-
-		buildLibrary( library.animations, buildAnimation );
-		buildLibrary( library.clips, buildAnimationClip );
-		buildLibrary( library.controllers, buildController );
-		buildLibrary( library.images, buildImage );
-		buildLibrary( library.effects, buildEffect );
-		buildLibrary( library.materials, buildMaterial );
-		buildLibrary( library.cameras, buildCamera );
-		buildLibrary( library.lights, buildLight );
-		buildLibrary( library.geometries, buildGeometry );
-		buildLibrary( library.visualScenes, buildVisualScene );
-
-		console.timeEnd( 'THREE.ColladaLoader: Build' );
-
-		setupAnimations();
-		setupKinematics();
-
-		var scene = parseScene( getElementsByTagName( collada, 'scene' )[ 0 ] );
-
-		if ( asset.upAxis === 'Z_UP' ) {
-
-			scene.rotation.x = - Math.PI / 2;
-
-		}
-
-		scene.scale.multiplyScalar( asset.unit );
-
-		console.timeEnd( 'THREE.ColladaLoader' );
-
-		return {
-			animations: animations,
-			kinematics: kinematics,
-			library: library,
-			scene: scene
-		};
-
-	}
-
-};
-
-},{}],42:[function(_dereq_,module,exports){
-/**
- * @author Rich Tibbett / https://github.com/richtr
- * @author mrdoob / http://mrdoob.com/
- * @author Tony Parisi / http://www.tonyparisi.com/
- * @author Takahiro / https://github.com/takahirox
- * @author Don McCurdy / https://www.donmccurdy.com
- */
-
-THREE.GLTFLoader = ( function () {
-
-	function GLTFLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
-
-	}
-
-	GLTFLoader.prototype = {
-
-		constructor: GLTFLoader,
-
-		crossOrigin: 'Anonymous',
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var path = this.path !== undefined ? this.path : THREE.LoaderUtils.extractUrlBase( url );
-
-			var loader = new THREE.FileLoader( scope.manager );
-
-			loader.setResponseType( 'arraybuffer' );
-
-			loader.load( url, function ( data ) {
-
-				try {
-
-					scope.parse( data, path, onLoad, onError );
-
-				} catch ( e ) {
-
-					if ( onError !== undefined ) {
-
-						onError( e );
-
-					} else {
-
-						throw e;
-
-					}
-
-				}
-
-			}, onProgress, onError );
-
-		},
-
-		setCrossOrigin: function ( value ) {
-
-			this.crossOrigin = value;
-			return this;
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-			return this;
-
-		},
-
-		parse: function ( data, path, onLoad, onError ) {
-
-			var content;
-			var extensions = {};
-
-			if ( typeof data === 'string' ) {
-
-				content = data;
-
-			} else {
-
-				var magic = THREE.LoaderUtils.decodeText( new Uint8Array( data, 0, 4 ) );
-
-				if ( magic === BINARY_EXTENSION_HEADER_MAGIC ) {
-
-					try {
-
-						extensions[ EXTENSIONS.KHR_BINARY_GLTF ] = new GLTFBinaryExtension( data );
-
-					} catch ( error ) {
-
-						if ( onError ) onError( error );
-						return;
-
-					}
-
-					content = extensions[ EXTENSIONS.KHR_BINARY_GLTF ].content;
-
-				} else {
-
-					content = THREE.LoaderUtils.decodeText( new Uint8Array( data ) );
-
-				}
-
-			}
-
-			var json = JSON.parse( content );
-
-			if ( json.asset === undefined || json.asset.version[ 0 ] < 2 ) {
-
-				if ( onError ) onError( new Error( 'THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported. Use LegacyGLTFLoader instead.' ) );
-				return;
-
-			}
-
-			if ( json.extensionsUsed ) {
-
-				if ( json.extensionsUsed.indexOf( EXTENSIONS.KHR_LIGHTS ) >= 0 ) {
-
-					extensions[ EXTENSIONS.KHR_LIGHTS ] = new GLTFLightsExtension( json );
-
-				}
-
-				if ( json.extensionsUsed.indexOf( EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ) >= 0 ) {
-
-					extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] = new GLTFMaterialsPbrSpecularGlossinessExtension();
-
-				}
-
-			}
-
-			console.time( 'GLTFLoader' );
-
-			var parser = new GLTFParser( json, extensions, {
-
-				path: path || this.path || '',
-				crossOrigin: this.crossOrigin,
-				manager: this.manager
-
-			} );
-
-			parser.parse( function ( scene, scenes, cameras, animations, asset ) {
-
-				console.timeEnd( 'GLTFLoader' );
-
-				var glTF = {
-					scene: scene,
-					scenes: scenes,
-					cameras: cameras,
-					animations: animations,
-					asset: asset
-				};
-
-				onLoad( glTF );
-
-			}, onError );
-
-		}
-
-	};
-
-	/* GLTFREGISTRY */
-
-	function GLTFRegistry() {
-
-		var objects = {};
-
-		return	{
-
-			get: function ( key ) {
-
-				return objects[ key ];
-
-			},
-
-			add: function ( key, object ) {
-
-				objects[ key ] = object;
-
-			},
-
-			remove: function ( key ) {
-
-				delete objects[ key ];
-
-			},
-
-			removeAll: function () {
-
-				objects = {};
-
-			}
-
-		};
-
-	}
-
-	/*********************************/
-	/********** EXTENSIONS ***********/
-	/*********************************/
-
-	var EXTENSIONS = {
-		KHR_BINARY_GLTF: 'KHR_binary_glTF',
-		KHR_LIGHTS: 'KHR_lights',
-		KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS: 'KHR_materials_pbrSpecularGlossiness'
-	};
-
-	/**
-	 * Lights Extension
-	 *
-	 * Specification: PENDING
-	 */
-	function GLTFLightsExtension( json ) {
-
-		this.name = EXTENSIONS.KHR_LIGHTS;
-
-		this.lights = {};
-
-		var extension = ( json.extensions && json.extensions[ EXTENSIONS.KHR_LIGHTS ] ) || {};
-		var lights = extension.lights || {};
-
-		for ( var lightId in lights ) {
-
-			var light = lights[ lightId ];
-			var lightNode;
-
-			var color = new THREE.Color().fromArray( light.color );
-
-			switch ( light.type ) {
-
-				case 'directional':
-					lightNode = new THREE.DirectionalLight( color );
-					lightNode.position.set( 0, 0, 1 );
-					break;
-
-				case 'point':
-					lightNode = new THREE.PointLight( color );
-					break;
-
-				case 'spot':
-					lightNode = new THREE.SpotLight( color );
-					lightNode.position.set( 0, 0, 1 );
-					break;
-
-				case 'ambient':
-					lightNode = new THREE.AmbientLight( color );
-					break;
-
-			}
-
-			if ( lightNode ) {
-
-				if ( light.constantAttenuation !== undefined ) {
-
-					lightNode.intensity = light.constantAttenuation;
-
-				}
-
-				if ( light.linearAttenuation !== undefined ) {
-
-					lightNode.distance = 1 / light.linearAttenuation;
-
-				}
-
-				if ( light.quadraticAttenuation !== undefined ) {
-
-					lightNode.decay = light.quadraticAttenuation;
-
-				}
-
-				if ( light.fallOffAngle !== undefined ) {
-
-					lightNode.angle = light.fallOffAngle;
-
-				}
-
-				if ( light.fallOffExponent !== undefined ) {
-
-					console.warn( 'THREE.GLTFLoader:: light.fallOffExponent not currently supported.' );
-
-				}
-
-				lightNode.name = light.name || ( 'light_' + lightId );
-				this.lights[ lightId ] = lightNode;
-
-			}
-
-		}
-
-	}
-
-	/* BINARY EXTENSION */
-
-	var BINARY_EXTENSION_BUFFER_NAME = 'binary_glTF';
-	var BINARY_EXTENSION_HEADER_MAGIC = 'glTF';
-	var BINARY_EXTENSION_HEADER_LENGTH = 12;
-	var BINARY_EXTENSION_CHUNK_TYPES = { JSON: 0x4E4F534A, BIN: 0x004E4942 };
-
-	function GLTFBinaryExtension( data ) {
-
-		this.name = EXTENSIONS.KHR_BINARY_GLTF;
-		this.content = null;
-		this.body = null;
-
-		var headerView = new DataView( data, 0, BINARY_EXTENSION_HEADER_LENGTH );
-
-		this.header = {
-			magic: THREE.LoaderUtils.decodeText( new Uint8Array( data.slice( 0, 4 ) ) ),
-			version: headerView.getUint32( 4, true ),
-			length: headerView.getUint32( 8, true )
-		};
-
-		if ( this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC ) {
-
-			throw new Error( 'THREE.GLTFLoader: Unsupported glTF-Binary header.' );
-
-		} else if ( this.header.version < 2.0 ) {
-
-			throw new Error( 'THREE.GLTFLoader: Legacy binary file detected. Use LegacyGLTFLoader instead.' );
-
-		}
-
-		var chunkView = new DataView( data, BINARY_EXTENSION_HEADER_LENGTH );
-		var chunkIndex = 0;
-
-		while ( chunkIndex < chunkView.byteLength ) {
-
-			var chunkLength = chunkView.getUint32( chunkIndex, true );
-			chunkIndex += 4;
-
-			var chunkType = chunkView.getUint32( chunkIndex, true );
-			chunkIndex += 4;
-
-			if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON ) {
-
-				var contentArray = new Uint8Array( data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength );
-				this.content = THREE.LoaderUtils.decodeText( contentArray );
-
-			} else if ( chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN ) {
-
-				var byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
-				this.body = data.slice( byteOffset, byteOffset + chunkLength );
-
-			}
-
-			// Clients must ignore chunks with unknown types.
-
-			chunkIndex += chunkLength;
-
-		}
-
-		if ( this.content === null ) {
-
-			throw new Error( 'THREE.GLTFLoader: JSON content not found.' );
-
-		}
-
-	}
-
-	/**
-	 * Specular-Glossiness Extension
-	 *
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_pbrSpecularGlossiness
-	 */
-	function GLTFMaterialsPbrSpecularGlossinessExtension() {
-
-		return {
-
-			name: EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS,
-
-			specularGlossinessParams: [
-				'color',
-				'map',
-				'lightMap',
-				'lightMapIntensity',
-				'aoMap',
-				'aoMapIntensity',
-				'emissive',
-				'emissiveIntensity',
-				'emissiveMap',
-				'bumpMap',
-				'bumpScale',
-				'normalMap',
-				'displacementMap',
-				'displacementScale',
-				'displacementBias',
-				'specularMap',
-				'specular',
-				'glossinessMap',
-				'glossiness',
-				'alphaMap',
-				'envMap',
-				'envMapIntensity',
-				'refractionRatio',
-			],
-
-			getMaterialType: function () {
-
-				return THREE.ShaderMaterial;
-
-			},
-
-			extendParams: function ( params, material, parser ) {
-
-				var pbrSpecularGlossiness = material.extensions[ this.name ];
-
-				var shader = THREE.ShaderLib[ 'standard' ];
-
-				var uniforms = THREE.UniformsUtils.clone( shader.uniforms );
-
-				var specularMapParsFragmentChunk = [
-					'#ifdef USE_SPECULARMAP',
-					'	uniform sampler2D specularMap;',
-					'#endif'
-				].join( '\n' );
-
-				var glossinessMapParsFragmentChunk = [
-					'#ifdef USE_GLOSSINESSMAP',
-					'	uniform sampler2D glossinessMap;',
-					'#endif'
-				].join( '\n' );
-
-				var specularMapFragmentChunk = [
-					'vec3 specularFactor = specular;',
-					'#ifdef USE_SPECULARMAP',
-					'	vec4 texelSpecular = texture2D( specularMap, vUv );',
-					'	texelSpecular = sRGBToLinear( texelSpecular );',
-					'	// reads channel RGB, compatible with a glTF Specular-Glossiness (RGBA) texture',
-					'	specularFactor *= texelSpecular.rgb;',
-					'#endif'
-				].join( '\n' );
-
-				var glossinessMapFragmentChunk = [
-					'float glossinessFactor = glossiness;',
-					'#ifdef USE_GLOSSINESSMAP',
-					'	vec4 texelGlossiness = texture2D( glossinessMap, vUv );',
-					'	// reads channel A, compatible with a glTF Specular-Glossiness (RGBA) texture',
-					'	glossinessFactor *= texelGlossiness.a;',
-					'#endif'
-				].join( '\n' );
-
-				var lightPhysicalFragmentChunk = [
-					'PhysicalMaterial material;',
-					'material.diffuseColor = diffuseColor.rgb;',
-					'material.specularRoughness = clamp( 1.0 - glossinessFactor, 0.04, 1.0 );',
-					'material.specularColor = specularFactor.rgb;',
-				].join( '\n' );
-
-				var fragmentShader = shader.fragmentShader
-					.replace( '#include <specularmap_fragment>', '' )
-					.replace( 'uniform float roughness;', 'uniform vec3 specular;' )
-					.replace( 'uniform float metalness;', 'uniform float glossiness;' )
-					.replace( '#include <roughnessmap_pars_fragment>', specularMapParsFragmentChunk )
-					.replace( '#include <metalnessmap_pars_fragment>', glossinessMapParsFragmentChunk )
-					.replace( '#include <roughnessmap_fragment>', specularMapFragmentChunk )
-					.replace( '#include <metalnessmap_fragment>', glossinessMapFragmentChunk )
-					.replace( '#include <lights_physical_fragment>', lightPhysicalFragmentChunk );
-
-				delete uniforms.roughness;
-				delete uniforms.metalness;
-				delete uniforms.roughnessMap;
-				delete uniforms.metalnessMap;
-
-				uniforms.specular = { value: new THREE.Color().setHex( 0x111111 ) };
-				uniforms.glossiness = { value: 0.5 };
-				uniforms.specularMap = { value: null };
-				uniforms.glossinessMap = { value: null };
-
-				params.vertexShader = shader.vertexShader;
-				params.fragmentShader = fragmentShader;
-				params.uniforms = uniforms;
-				params.defines = { 'STANDARD': '' };
-
-				params.color = new THREE.Color( 1.0, 1.0, 1.0 );
-				params.opacity = 1.0;
-
-				var pending = [];
-
-				if ( Array.isArray( pbrSpecularGlossiness.diffuseFactor ) ) {
-
-					var array = pbrSpecularGlossiness.diffuseFactor;
-
-					params.color.fromArray( array );
-					params.opacity = array[ 3 ];
-
-				}
-
-				if ( pbrSpecularGlossiness.diffuseTexture !== undefined ) {
-
-					pending.push( parser.assignTexture( params, 'map', pbrSpecularGlossiness.diffuseTexture.index ) );
-
-				}
-
-				params.emissive = new THREE.Color( 0.0, 0.0, 0.0 );
-				params.glossiness = pbrSpecularGlossiness.glossinessFactor !== undefined ? pbrSpecularGlossiness.glossinessFactor : 1.0;
-				params.specular = new THREE.Color( 1.0, 1.0, 1.0 );
-
-				if ( Array.isArray( pbrSpecularGlossiness.specularFactor ) ) {
-
-					params.specular.fromArray( pbrSpecularGlossiness.specularFactor );
-
-				}
-
-				if ( pbrSpecularGlossiness.specularGlossinessTexture !== undefined ) {
-
-					var specGlossIndex = pbrSpecularGlossiness.specularGlossinessTexture.index;
-					pending.push( parser.assignTexture( params, 'glossinessMap', specGlossIndex ) );
-					pending.push( parser.assignTexture( params, 'specularMap', specGlossIndex ) );
-
-				}
-
-				return Promise.all( pending );
-
-			},
-
-			createMaterial: function ( params ) {
-
-				// setup material properties based on MeshStandardMaterial for Specular-Glossiness
-
-				var material = new THREE.ShaderMaterial( {
-					defines: params.defines,
-					vertexShader: params.vertexShader,
-					fragmentShader: params.fragmentShader,
-					uniforms: params.uniforms,
-					fog: true,
-					lights: true,
-					opacity: params.opacity,
-					transparent: params.transparent
-				} );
-
-				material.isGLTFSpecularGlossinessMaterial = true;
-
-				material.color = params.color;
-
-				material.map = params.map === undefined ? null : params.map;
-
-				material.lightMap = null;
-				material.lightMapIntensity = 1.0;
-
-				material.aoMap = params.aoMap === undefined ? null : params.aoMap;
-				material.aoMapIntensity = 1.0;
-
-				material.emissive = params.emissive;
-				material.emissiveIntensity = 1.0;
-				material.emissiveMap = params.emissiveMap === undefined ? null : params.emissiveMap;
-
-				material.bumpMap = params.bumpMap === undefined ? null : params.bumpMap;
-				material.bumpScale = 1;
-
-				material.normalMap = params.normalMap === undefined ? null : params.normalMap;
-				if ( params.normalScale ) material.normalScale = params.normalScale;
-
-				material.displacementMap = null;
-				material.displacementScale = 1;
-				material.displacementBias = 0;
-
-				material.specularMap = params.specularMap === undefined ? null : params.specularMap;
-				material.specular = params.specular;
-
-				material.glossinessMap = params.glossinessMap === undefined ? null : params.glossinessMap;
-				material.glossiness = params.glossiness;
-
-				material.alphaMap = null;
-
-				material.envMap = params.envMap === undefined ? null : params.envMap;
-				material.envMapIntensity = 1.0;
-
-				material.refractionRatio = 0.98;
-
-				material.extensions.derivatives = true;
-
-				return material;
-
-			},
-
-			/**
-			 * Clones a GLTFSpecularGlossinessMaterial instance. The ShaderMaterial.copy() method can
-			 * copy only properties it knows about or inherits, and misses many properties that would
-			 * normally be defined by MeshStandardMaterial.
-			 *
-			 * This method allows GLTFSpecularGlossinessMaterials to be cloned in the process of
-			 * loading a glTF model, but cloning later (e.g. by the user) would require these changes
-			 * AND also updating `.onBeforeRender` on the parent mesh.
-			 *
-			 * @param  {THREE.ShaderMaterial} source
-			 * @return {THREE.ShaderMaterial}
-			 */
-			cloneMaterial: function ( source ) {
-
-				var target = source.clone();
-
-				target.isGLTFSpecularGlossinessMaterial = true;
-
-				var params = this.specularGlossinessParams;
-
-				for ( var i = 0, il = params.length; i < il; i ++ ) {
-
-					target[ params[ i ] ] = source[ params[ i ] ];
-
-				}
-
-				return target;
-
-			},
-
-			// Here's based on refreshUniformsCommon() and refreshUniformsStandard() in WebGLRenderer.
-			refreshUniforms: function ( renderer, scene, camera, geometry, material, group ) {
-
-				if ( material.isGLTFSpecularGlossinessMaterial !== true ) {
-
-					return;
-
-				}
-
-				var uniforms = material.uniforms;
-				var defines = material.defines;
-
-				uniforms.opacity.value = material.opacity;
-
-				uniforms.diffuse.value.copy( material.color );
-				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );
-
-				uniforms.map.value = material.map;
-				uniforms.specularMap.value = material.specularMap;
-				uniforms.alphaMap.value = material.alphaMap;
-
-				uniforms.lightMap.value = material.lightMap;
-				uniforms.lightMapIntensity.value = material.lightMapIntensity;
-
-				uniforms.aoMap.value = material.aoMap;
-				uniforms.aoMapIntensity.value = material.aoMapIntensity;
-
-				// uv repeat and offset setting priorities
-				// 1. color map
-				// 2. specular map
-				// 3. normal map
-				// 4. bump map
-				// 5. alpha map
-				// 6. emissive map
-
-				var uvScaleMap;
-
-				if ( material.map ) {
-
-					uvScaleMap = material.map;
-
-				} else if ( material.specularMap ) {
-
-					uvScaleMap = material.specularMap;
-
-				} else if ( material.displacementMap ) {
-
-					uvScaleMap = material.displacementMap;
-
-				} else if ( material.normalMap ) {
-
-					uvScaleMap = material.normalMap;
-
-				} else if ( material.bumpMap ) {
-
-					uvScaleMap = material.bumpMap;
-
-				} else if ( material.glossinessMap ) {
-
-					uvScaleMap = material.glossinessMap;
-
-				} else if ( material.alphaMap ) {
-
-					uvScaleMap = material.alphaMap;
-
-				} else if ( material.emissiveMap ) {
-
-					uvScaleMap = material.emissiveMap;
-
-				}
-
-				if ( uvScaleMap !== undefined ) {
-
-					// backwards compatibility
-					if ( uvScaleMap.isWebGLRenderTarget ) {
-
-						uvScaleMap = uvScaleMap.texture;
-
-					}
-
-					var offset;
-					var repeat;
-
-					if ( uvScaleMap.matrix !== undefined ) {
-
-						// > r88.
-
-						if ( uvScaleMap.matrixAutoUpdate === true ) {
-
-							offset = uvScaleMap.offset;
-							repeat = uvScaleMap.repeat;
-							var rotation = uvScaleMap.rotation;
-							var center = uvScaleMap.center;
-
-							uvScaleMap.matrix.setUvTransform( offset.x, offset.y, repeat.x, repeat.y, rotation, center.x, center.y );
-
-						}
-
-						uniforms.uvTransform.value.copy( uvScaleMap.matrix );
-
-					} else {
-
-						// <= r87. Remove when reasonable.
-
-						offset = uvScaleMap.offset;
-						repeat = uvScaleMap.repeat;
-
-						uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );
-
-					}
-
-				}
-
-				uniforms.envMap.value = material.envMap;
-				uniforms.envMapIntensity.value = material.envMapIntensity;
-				uniforms.flipEnvMap.value = ( material.envMap && material.envMap.isCubeTexture ) ? - 1 : 1;
-
-				uniforms.refractionRatio.value = material.refractionRatio;
-
-				uniforms.specular.value.copy( material.specular );
-				uniforms.glossiness.value = material.glossiness;
-
-				uniforms.glossinessMap.value = material.glossinessMap;
-
-				uniforms.emissiveMap.value = material.emissiveMap;
-				uniforms.bumpMap.value = material.bumpMap;
-				uniforms.normalMap.value = material.normalMap;
-
-				uniforms.displacementMap.value = material.displacementMap;
-				uniforms.displacementScale.value = material.displacementScale;
-				uniforms.displacementBias.value = material.displacementBias;
-
-				if ( uniforms.glossinessMap.value !== null && defines.USE_GLOSSINESSMAP === undefined ) {
-
-					defines.USE_GLOSSINESSMAP = '';
-					// set USE_ROUGHNESSMAP to enable vUv
-					defines.USE_ROUGHNESSMAP = '';
-
-				}
-
-				if ( uniforms.glossinessMap.value === null && defines.USE_GLOSSINESSMAP !== undefined ) {
-
-					delete defines.USE_GLOSSINESSMAP;
-					delete defines.USE_ROUGHNESSMAP;
-
-				}
-
-			}
-
-		};
-
-	}
-
-	/*********************************/
-	/********** INTERPOLATION ********/
-	/*********************************/
-
-	// Spline Interpolation
-	// Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation
-	function GLTFCubicSplineInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {
-
-		THREE.Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );
-
-	};
-
-	GLTFCubicSplineInterpolant.prototype = Object.create( THREE.Interpolant.prototype );
-	GLTFCubicSplineInterpolant.prototype.constructor = GLTFCubicSplineInterpolant;
-
-	GLTFCubicSplineInterpolant.prototype.interpolate_ = function ( i1, t0, t, t1 ) {
-
-		var result = this.resultBuffer;
-		var values = this.sampleValues;
-		var stride = this.valueSize;
-
-		var stride2 = stride * 2;
-		var stride3 = stride * 3;
-
-		var td = t1 - t0;
-
-		var p = ( t - t0 ) / td;
-		var pp = p * p;
-		var ppp = pp * p;
-
-		var offset1 = i1 * stride3;
-		var offset0 = offset1 - stride3;
-
-		var s0 = 2 * ppp - 3 * pp + 1;
-		var s1 = ppp - 2 * pp + p;
-		var s2 = - 2 * ppp + 3 * pp;
-		var s3 = ppp - pp;
-
-		// Layout of keyframe output values for CUBICSPLINE animations:
-		//   [ inTangent_1, splineVertex_1, outTangent_1, inTangent_2, splineVertex_2, ... ]
-		for ( var i = 0; i !== stride; i ++ ) {
-
-			var p0 = values[ offset0 + i + stride ];        // splineVertex_k
-			var m0 = values[ offset0 + i + stride2 ] * td;  // outTangent_k * (t_k+1 - t_k)
-			var p1 = values[ offset1 + i + stride ];        // splineVertex_k+1
-			var m1 = values[ offset1 + i ] * td;            // inTangent_k+1 * (t_k+1 - t_k)
-
-			result[ i ] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;
-
-		}
-
-		return result;
-
-	};
-
-	/*********************************/
-	/********** INTERNALS ************/
-	/*********************************/
-
-	/* CONSTANTS */
-
-	var WEBGL_CONSTANTS = {
-		FLOAT: 5126,
-		//FLOAT_MAT2: 35674,
-		FLOAT_MAT3: 35675,
-		FLOAT_MAT4: 35676,
-		FLOAT_VEC2: 35664,
-		FLOAT_VEC3: 35665,
-		FLOAT_VEC4: 35666,
-		LINEAR: 9729,
-		REPEAT: 10497,
-		SAMPLER_2D: 35678,
-		POINTS: 0,
-		LINES: 1,
-		LINE_LOOP: 2,
-		LINE_STRIP: 3,
-		TRIANGLES: 4,
-		TRIANGLE_STRIP: 5,
-		TRIANGLE_FAN: 6,
-		UNSIGNED_BYTE: 5121,
-		UNSIGNED_SHORT: 5123
-	};
-
-	var WEBGL_TYPE = {
-		5126: Number,
-		//35674: THREE.Matrix2,
-		35675: THREE.Matrix3,
-		35676: THREE.Matrix4,
-		35664: THREE.Vector2,
-		35665: THREE.Vector3,
-		35666: THREE.Vector4,
-		35678: THREE.Texture
-	};
-
-	var WEBGL_COMPONENT_TYPES = {
-		5120: Int8Array,
-		5121: Uint8Array,
-		5122: Int16Array,
-		5123: Uint16Array,
-		5125: Uint32Array,
-		5126: Float32Array
-	};
-
-	var WEBGL_FILTERS = {
-		9728: THREE.NearestFilter,
-		9729: THREE.LinearFilter,
-		9984: THREE.NearestMipMapNearestFilter,
-		9985: THREE.LinearMipMapNearestFilter,
-		9986: THREE.NearestMipMapLinearFilter,
-		9987: THREE.LinearMipMapLinearFilter
-	};
-
-	var WEBGL_WRAPPINGS = {
-		33071: THREE.ClampToEdgeWrapping,
-		33648: THREE.MirroredRepeatWrapping,
-		10497: THREE.RepeatWrapping
-	};
-
-	var WEBGL_TEXTURE_FORMATS = {
-		6406: THREE.AlphaFormat,
-		6407: THREE.RGBFormat,
-		6408: THREE.RGBAFormat,
-		6409: THREE.LuminanceFormat,
-		6410: THREE.LuminanceAlphaFormat
-	};
-
-	var WEBGL_TEXTURE_DATATYPES = {
-		5121: THREE.UnsignedByteType,
-		32819: THREE.UnsignedShort4444Type,
-		32820: THREE.UnsignedShort5551Type,
-		33635: THREE.UnsignedShort565Type
-	};
-
-	var WEBGL_SIDES = {
-		1028: THREE.BackSide, // Culling front
-		1029: THREE.FrontSide // Culling back
-		//1032: THREE.NoSide   // Culling front and back, what to do?
-	};
-
-	var WEBGL_DEPTH_FUNCS = {
-		512: THREE.NeverDepth,
-		513: THREE.LessDepth,
-		514: THREE.EqualDepth,
-		515: THREE.LessEqualDepth,
-		516: THREE.GreaterEqualDepth,
-		517: THREE.NotEqualDepth,
-		518: THREE.GreaterEqualDepth,
-		519: THREE.AlwaysDepth
-	};
-
-	var WEBGL_BLEND_EQUATIONS = {
-		32774: THREE.AddEquation,
-		32778: THREE.SubtractEquation,
-		32779: THREE.ReverseSubtractEquation
-	};
-
-	var WEBGL_BLEND_FUNCS = {
-		0: THREE.ZeroFactor,
-		1: THREE.OneFactor,
-		768: THREE.SrcColorFactor,
-		769: THREE.OneMinusSrcColorFactor,
-		770: THREE.SrcAlphaFactor,
-		771: THREE.OneMinusSrcAlphaFactor,
-		772: THREE.DstAlphaFactor,
-		773: THREE.OneMinusDstAlphaFactor,
-		774: THREE.DstColorFactor,
-		775: THREE.OneMinusDstColorFactor,
-		776: THREE.SrcAlphaSaturateFactor
-		// The followings are not supported by Three.js yet
-		//32769: CONSTANT_COLOR,
-		//32770: ONE_MINUS_CONSTANT_COLOR,
-		//32771: CONSTANT_ALPHA,
-		//32772: ONE_MINUS_CONSTANT_COLOR
-	};
-
-	var WEBGL_TYPE_SIZES = {
-		'SCALAR': 1,
-		'VEC2': 2,
-		'VEC3': 3,
-		'VEC4': 4,
-		'MAT2': 4,
-		'MAT3': 9,
-		'MAT4': 16
-	};
-
-	var PATH_PROPERTIES = {
-		scale: 'scale',
-		translation: 'position',
-		rotation: 'quaternion',
-		weights: 'morphTargetInfluences'
-	};
-
-	var INTERPOLATION = {
-		CUBICSPLINE: THREE.InterpolateSmooth, // We use custom interpolation GLTFCubicSplineInterpolation for CUBICSPLINE.
-		                                      // KeyframeTrack.optimize() can't handle glTF Cubic Spline output values layout,
-		                                      // using THREE.InterpolateSmooth for KeyframeTrack instantiation to prevent optimization.
-		                                      // See KeyframeTrack.optimize() for the detail.
-		LINEAR: THREE.InterpolateLinear,
-		STEP: THREE.InterpolateDiscrete
-	};
-
-	var STATES_ENABLES = {
-		2884: 'CULL_FACE',
-		2929: 'DEPTH_TEST',
-		3042: 'BLEND',
-		3089: 'SCISSOR_TEST',
-		32823: 'POLYGON_OFFSET_FILL',
-		32926: 'SAMPLE_ALPHA_TO_COVERAGE'
-	};
-
-	var ALPHA_MODES = {
-		OPAQUE: 'OPAQUE',
-		MASK: 'MASK',
-		BLEND: 'BLEND'
-	};
-
-	/* UTILITY FUNCTIONS */
-
-	function resolveURL( url, path ) {
-
-		// Invalid URL
-		if ( typeof url !== 'string' || url === '' ) return '';
-
-		// Absolute URL http://,https://,//
-		if ( /^(https?:)?\/\//i.test( url ) ) return url;
-
-		// Data URI
-		if ( /^data:.*,.*$/i.test( url ) ) return url;
-
-		// Blob URL
-		if ( /^blob:.*$/i.test( url ) ) return url;
-
-		// Relative URL
-		return path + url;
-
-	}
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#default-material
-	 */
-	function createDefaultMaterial() {
-
-		return new THREE.MeshStandardMaterial( {
-			color: 0xFFFFFF,
-			emissive: 0x000000,
-			metalness: 1,
-			roughness: 1,
-			transparent: false,
-			depthTest: true,
-			side: THREE.FrontSide
-		} );
-
-	}
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#morph-targets
-	 *
-	 * TODO: Implement support for morph targets on TANGENT attribute.
-	 *
-	 * @param {THREE.Mesh} mesh
-	 * @param {GLTF.Mesh} meshDef
-	 * @param {GLTF.Primitive} primitiveDef
-	 * @param {Array<THREE.BufferAttribute>} accessors
-	 */
-	function addMorphTargets( mesh, meshDef, primitiveDef, accessors ) {
-
-		var geometry = mesh.geometry;
-		var material = mesh.material;
-
-		var targets = primitiveDef.targets;
-		var morphAttributes = geometry.morphAttributes;
-
-		morphAttributes.position = [];
-		morphAttributes.normal = [];
-
-		material.morphTargets = true;
-
-		for ( var i = 0, il = targets.length; i < il; i ++ ) {
-
-			var target = targets[ i ];
-			var attributeName = 'morphTarget' + i;
-
-			var positionAttribute, normalAttribute;
-
-			if ( target.POSITION !== undefined ) {
-
-				// Three.js morph formula is
-				//   position
-				//     + weight0 * ( morphTarget0 - position )
-				//     + weight1 * ( morphTarget1 - position )
-				//     ...
-				// while the glTF one is
-				//   position
-				//     + weight0 * morphTarget0
-				//     + weight1 * morphTarget1
-				//     ...
-				// then adding position to morphTarget.
-				// So morphTarget value will depend on mesh's position, then cloning attribute
-				// for the case if attribute is shared among two or more meshes.
-
-				positionAttribute = cloneBufferAttribute( accessors[ target.POSITION ] );
-				var position = geometry.attributes.position;
-
-				for ( var j = 0, jl = positionAttribute.count; j < jl; j ++ ) {
-
-					positionAttribute.setXYZ(
-						j,
-						positionAttribute.getX( j ) + position.getX( j ),
-						positionAttribute.getY( j ) + position.getY( j ),
-						positionAttribute.getZ( j ) + position.getZ( j )
-					);
-
-				}
-
-			} else if ( geometry.attributes.position ) {
-
-				// Copying the original position not to affect the final position.
-				// See the formula above.
-				positionAttribute = cloneBufferAttribute( geometry.attributes.position );
-
-			}
-
-			if ( positionAttribute !== undefined ) {
-
-				positionAttribute.name = attributeName;
-				morphAttributes.position.push( positionAttribute );
-
-			}
-
-			if ( target.NORMAL !== undefined ) {
-
-				material.morphNormals = true;
-
-				// see target.POSITION's comment
-
-				normalAttribute = cloneBufferAttribute( accessors[ target.NORMAL ] );
-				var normal = geometry.attributes.normal;
-
-				for ( var j = 0, jl = normalAttribute.count; j < jl; j ++ ) {
-
-					normalAttribute.setXYZ(
-						j,
-						normalAttribute.getX( j ) + normal.getX( j ),
-						normalAttribute.getY( j ) + normal.getY( j ),
-						normalAttribute.getZ( j ) + normal.getZ( j )
-					);
-
-				}
-
-			} else if ( geometry.attributes.normal !== undefined ) {
-
-				normalAttribute = cloneBufferAttribute( geometry.attributes.normal );
-
-			}
-
-			if ( normalAttribute !== undefined ) {
-
-				normalAttribute.name = attributeName;
-				morphAttributes.normal.push( normalAttribute );
-
-			}
-
-		}
-
-		mesh.updateMorphTargets();
-
-		if ( meshDef.weights !== undefined ) {
-
-			for ( var i = 0, il = meshDef.weights.length; i < il; i ++ ) {
-
-				mesh.morphTargetInfluences[ i ] = meshDef.weights[ i ];
-
-			}
-
-		}
-
-	}
-
-	function isPrimitiveEqual( a, b ) {
-
-		if ( a.indices !== b.indices ) {
-
-			return false;
-
-		}
-
-		var attribA = a.attributes || {};
-		var attribB = b.attributes || {};
-		var keysA = Object.keys( attribA );
-		var keysB = Object.keys( attribB );
-
-		if ( keysA.length !== keysB.length ) {
-
-			return false;
-
-		}
-
-		for ( var i = 0, il = keysA.length; i < il; i ++ ) {
-
-			var key = keysA[ i ];
-
-			if ( attribA[ key ] !== attribB[ key ] ) {
-
-				return false;
-
-			}
-
-		}
-
-		return true;
-
-	}
-
-	function getCachedGeometry( cache, newPrimitive ) {
-
-		for ( var i = 0, il = cache.length; i < il; i ++ ) {
-
-			var cached = cache[ i ];
-
-			if ( isPrimitiveEqual( cached.primitive, newPrimitive ) ) {
-
-				return cached.geometry;
-
-			}
-
-		}
-
-		return null;
-
-	}
-
-	function cloneBufferAttribute( attribute ) {
-
-		if ( attribute.isInterleavedBufferAttribute ) {
-
-			var count = attribute.count;
-			var itemSize = attribute.itemSize;
-			var array = attribute.array.slice( 0, count * itemSize );
-
-			for ( var i = 0; i < count; ++ i ) {
-
-				array[ i ] = attribute.getX( i );
-				if ( itemSize >= 2 ) array[ i + 1 ] = attribute.getY( i );
-				if ( itemSize >= 3 ) array[ i + 2 ] = attribute.getZ( i );
-				if ( itemSize >= 4 ) array[ i + 3 ] = attribute.getW( i );
-
-			}
-
-			return new THREE.BufferAttribute( array, itemSize, attribute.normalized );
-
-		}
-
-		return attribute.clone();
-
-	}
-
-	/* GLTF PARSER */
-
-	function GLTFParser( json, extensions, options ) {
-
-		this.json = json || {};
-		this.extensions = extensions || {};
-		this.options = options || {};
-
-		// loader object cache
-		this.cache = new GLTFRegistry();
-
-		// BufferGeometry caching
-		this.primitiveCache = [];
-
-		this.textureLoader = new THREE.TextureLoader( this.options.manager );
-		this.textureLoader.setCrossOrigin( this.options.crossOrigin );
-
-		this.fileLoader = new THREE.FileLoader( this.options.manager );
-		this.fileLoader.setResponseType( 'arraybuffer' );
-
-	}
-
-	GLTFParser.prototype.parse = function ( onLoad, onError ) {
-
-		var json = this.json;
-
-		// Clear the loader cache
-		this.cache.removeAll();
-
-		// Mark the special nodes/meshes in json for efficient parse
-		this.markDefs();
-
-		// Fire the callback on complete
-		this.getMultiDependencies( [
-
-			'scene',
-			'animation',
-			'camera'
-
-		] ).then( function ( dependencies ) {
-
-			var scenes = dependencies.scenes || [];
-			var scene = scenes[ json.scene || 0 ];
-			var animations = dependencies.animations || [];
-			var asset = json.asset;
-			var cameras = dependencies.cameras || [];
-
-			onLoad( scene, scenes, cameras, animations, asset );
-
-		} ).catch( onError );
-
-	};
-
-	/**
-	 * Marks the special nodes/meshes in json for efficient parse.
-	 */
-	GLTFParser.prototype.markDefs = function () {
-
-		var nodeDefs = this.json.nodes || [];
-		var skinDefs = this.json.skins || [];
-		var meshDefs = this.json.meshes || [];
-
-		var meshReferences = {};
-		var meshUses = {};
-
-		// Nothing in the node definition indicates whether it is a Bone or an
-		// Object3D. Use the skins' joint references to mark bones.
-		for ( var skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex ++ ) {
-
-			var joints = skinDefs[ skinIndex ].joints;
-
-			for ( var i = 0, il = joints.length; i < il; i ++ ) {
-
-				nodeDefs[ joints[ i ] ].isBone = true;
-
-			}
-
-		}
-
-		// Meshes can (and should) be reused by multiple nodes in a glTF asset. To
-		// avoid having more than one THREE.Mesh with the same name, count
-		// references and rename instances below.
-		//
-		// Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
-		for ( var nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex ++ ) {
-
-			var nodeDef = nodeDefs[ nodeIndex ];
-
-			if ( nodeDef.mesh !== undefined ) {
-
-				if ( meshReferences[ nodeDef.mesh ] === undefined ) {
-
-					meshReferences[ nodeDef.mesh ] = meshUses[ nodeDef.mesh ] = 0;
-
-				}
-
-				meshReferences[ nodeDef.mesh ] ++;
-
-				// Nothing in the mesh definition indicates whether it is
-				// a SkinnedMesh or Mesh. Use the node's mesh reference
-				// to mark SkinnedMesh if node has skin.
-				if ( nodeDef.skin !== undefined ) {
-
-					meshDefs[ nodeDef.mesh ].isSkinnedMesh = true;
-
-				}
-
-			}
-
-		}
-
-		this.json.meshReferences = meshReferences;
-		this.json.meshUses = meshUses;
-
-	};
-
-	/**
-	 * Requests the specified dependency asynchronously, with caching.
-	 * @param {string} type
-	 * @param {number} index
-	 * @return {Promise<Object>}
-	 */
-	GLTFParser.prototype.getDependency = function ( type, index ) {
-
-		var cacheKey = type + ':' + index;
-		var dependency = this.cache.get( cacheKey );
-
-		if ( ! dependency ) {
-
-			var fnName = 'load' + type.charAt( 0 ).toUpperCase() + type.slice( 1 );
-			dependency = this[ fnName ]( index );
-			this.cache.add( cacheKey, dependency );
-
-		}
-
-		return dependency;
-
-	};
-
-	/**
-	 * Requests all dependencies of the specified type asynchronously, with caching.
-	 * @param {string} type
-	 * @return {Promise<Array<Object>>}
-	 */
-	GLTFParser.prototype.getDependencies = function ( type ) {
-
-		var dependencies = this.cache.get( type );
-
-		if ( ! dependencies ) {
-
-			var parser = this;
-			var defs = this.json[ type + ( type === 'mesh' ? 'es' : 's' ) ] || [];
-
-			dependencies = Promise.all( defs.map( function ( def, index ) {
-
-				return parser.getDependency( type, index );
-
-			} ) );
-
-			this.cache.add( type, dependencies );
-
-		}
-
-		return dependencies;
-
-	};
-
-	/**
-	 * Requests all multiple dependencies of the specified types asynchronously, with caching.
-	 * @param {Array<string>} types
-	 * @return {Promise<Object<Array<Object>>>}
-	 */
-	GLTFParser.prototype.getMultiDependencies = function ( types ) {
-
-		var results = {};
-		var pendings = [];
-
-		for ( var i = 0, il = types.length; i < il; i ++ ) {
-
-			var type = types[ i ];
-			var value = this.getDependencies( type );
-
-			value = value.then( function ( key, value ) {
-
-				results[ key ] = value;
-
-			}.bind( this, type + ( type === 'mesh' ? 'es' : 's' ) ) );
-
-			pendings.push( value );
-
-		}
-
-		return Promise.all( pendings ).then( function () {
-
-			return results;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
-	 * @param {number} bufferIndex
-	 * @return {Promise<ArrayBuffer>}
-	 */
-	GLTFParser.prototype.loadBuffer = function ( bufferIndex ) {
-
-		var bufferDef = this.json.buffers[ bufferIndex ];
-		var loader = this.fileLoader;
-
-		if ( bufferDef.type && bufferDef.type !== 'arraybuffer' ) {
-
-			throw new Error( 'THREE.GLTFLoader: ' + bufferDef.type + ' buffer type is not supported.' );
-
-		}
-
-		// If present, GLB container is required to be the first buffer.
-		if ( bufferDef.uri === undefined && bufferIndex === 0 ) {
-
-			return Promise.resolve( this.extensions[ EXTENSIONS.KHR_BINARY_GLTF ].body );
-
-		}
-
-		var options = this.options;
-
-		return new Promise( function ( resolve, reject ) {
-
-			loader.load( resolveURL( bufferDef.uri, options.path ), resolve, undefined, function () {
-
-				reject( new Error( 'THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".' ) );
-
-			} );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
-	 * @param {number} bufferViewIndex
-	 * @return {Promise<ArrayBuffer>}
-	 */
-	GLTFParser.prototype.loadBufferView = function ( bufferViewIndex ) {
-
-		var bufferViewDef = this.json.bufferViews[ bufferViewIndex ];
-
-		return this.getDependency( 'buffer', bufferViewDef.buffer ).then( function ( buffer ) {
-
-			var byteLength = bufferViewDef.byteLength || 0;
-			var byteOffset = bufferViewDef.byteOffset || 0;
-			return buffer.slice( byteOffset, byteOffset + byteLength );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
-	 * @param {number} accessorIndex
-	 * @return {Promise<THREE.BufferAttribute|THREE.InterleavedBufferAttribute>}
-	 */
-	GLTFParser.prototype.loadAccessor = function ( accessorIndex ) {
-
-		var parser = this;
-		var json = this.json;
-
-		var accessorDef = this.json.accessors[ accessorIndex ];
-
-		var pendingBufferViews = [];
-
-		if ( accessorDef.bufferView !== undefined ) {
-
-			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.bufferView ) );
-
-		} else {
-
-			pendingBufferViews.push( null );
-
-		}
-
-		if ( accessorDef.sparse !== undefined ) {
-
-			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.indices.bufferView ) );
-			pendingBufferViews.push( this.getDependency( 'bufferView', accessorDef.sparse.values.bufferView ) );
-
-		}
-
-		return Promise.all( pendingBufferViews ).then( function ( bufferViews ) {
-
-			var bufferView = bufferViews[ 0 ];
-
-			var itemSize = WEBGL_TYPE_SIZES[ accessorDef.type ];
-			var TypedArray = WEBGL_COMPONENT_TYPES[ accessorDef.componentType ];
-
-			// For VEC3: itemSize is 3, elementBytes is 4, itemBytes is 12.
-			var elementBytes = TypedArray.BYTES_PER_ELEMENT;
-			var itemBytes = elementBytes * itemSize;
-			var byteOffset = accessorDef.byteOffset || 0;
-			var byteStride = json.bufferViews[ accessorDef.bufferView ].byteStride;
-			var normalized = accessorDef.normalized === true;
-			var array, bufferAttribute;
-
-			// The buffer is not interleaved if the stride is the item size in bytes.
-			if ( byteStride && byteStride !== itemBytes ) {
-
-				var ibCacheKey = 'InterleavedBuffer:' + accessorDef.bufferView + ':' + accessorDef.componentType;
-				var ib = parser.cache.get( ibCacheKey );
-
-				if ( ! ib ) {
-
-					// Use the full buffer if it's interleaved.
-					array = new TypedArray( bufferView );
-
-					// Integer parameters to IB/IBA are in array elements, not bytes.
-					ib = new THREE.InterleavedBuffer( array, byteStride / elementBytes );
-
-					parser.cache.add( ibCacheKey, ib );
-
-				}
-
-				bufferAttribute = new THREE.InterleavedBufferAttribute( ib, itemSize, byteOffset / elementBytes, normalized );
-
-			} else {
-
-				if ( bufferView === null ) {
-
-					array = new TypedArray( accessorDef.count * itemSize );
-
-				} else {
-
-					array = new TypedArray( bufferView, byteOffset, accessorDef.count * itemSize );
-
-				}
-
-				bufferAttribute = new THREE.BufferAttribute( array, itemSize, normalized );
-
-			}
-
-			// https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#sparse-accessors
-			if ( accessorDef.sparse !== undefined ) {
-
-				var itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
-				var TypedArrayIndices = WEBGL_COMPONENT_TYPES[ accessorDef.sparse.indices.componentType ];
-
-				var byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
-				var byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
-
-				var sparseIndices = new TypedArrayIndices( bufferViews[ 1 ], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices );
-				var sparseValues = new TypedArray( bufferViews[ 2 ], byteOffsetValues, accessorDef.sparse.count * itemSize );
-
-				if ( bufferView !== null ) {
-
-					// Avoid modifying the original ArrayBuffer, if the bufferView wasn't initialized with zeroes.
-					bufferAttribute.setArray( bufferAttribute.array.slice() );
-
-				}
-
-				for ( var i = 0, il = sparseIndices.length; i < il; i ++ ) {
-
-					var index = sparseIndices[ i ];
-
-					bufferAttribute.setX( index, sparseValues[ i * itemSize ] );
-					if ( itemSize >= 2 ) bufferAttribute.setY( index, sparseValues[ i * itemSize + 1 ] );
-					if ( itemSize >= 3 ) bufferAttribute.setZ( index, sparseValues[ i * itemSize + 2 ] );
-					if ( itemSize >= 4 ) bufferAttribute.setW( index, sparseValues[ i * itemSize + 3 ] );
-					if ( itemSize >= 5 ) throw new Error( 'THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.' );
-
-				}
-
-			}
-
-			return bufferAttribute;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
-	 * @param {number} textureIndex
-	 * @return {Promise<THREE.Texture>}
-	 */
-	GLTFParser.prototype.loadTexture = function ( textureIndex ) {
-
-		var parser = this;
-		var json = this.json;
-		var options = this.options;
-		var textureLoader = this.textureLoader;
-
-		var URL = window.URL || window.webkitURL;
-
-		var textureDef = json.textures[ textureIndex ];
-		var source = json.images[ textureDef.source ];
-		var sourceURI = source.uri;
-		var isObjectURL = false;
-
-		if ( source.bufferView !== undefined ) {
-
-			// Load binary image data from bufferView, if provided.
-
-			sourceURI = parser.getDependency( 'bufferView', source.bufferView ).then( function ( bufferView ) {
-
-				isObjectURL = true;
-				var blob = new Blob( [ bufferView ], { type: source.mimeType } );
-				sourceURI = URL.createObjectURL( blob );
-				return sourceURI;
-
-			} );
-
-		}
-
-		return Promise.resolve( sourceURI ).then( function ( sourceURI ) {
-
-			// Load Texture resource.
-
-			var loader = THREE.Loader.Handlers.get( sourceURI ) || textureLoader;
-
-			return new Promise( function ( resolve, reject ) {
-
-				loader.load( resolveURL( sourceURI, options.path ), resolve, undefined, reject );
-
-			} );
-
-		} ).then( function ( texture ) {
-
-			// Clean up resources and configure Texture.
-
-			if ( isObjectURL === true ) {
-
-				URL.revokeObjectURL( sourceURI );
-
-			}
-
-			texture.flipY = false;
-
-			if ( textureDef.name !== undefined ) texture.name = textureDef.name;
-
-			texture.format = textureDef.format !== undefined ? WEBGL_TEXTURE_FORMATS[ textureDef.format ] : THREE.RGBAFormat;
-
-			if ( textureDef.internalFormat !== undefined && texture.format !== WEBGL_TEXTURE_FORMATS[ textureDef.internalFormat ] ) {
-
-				console.warn( 'THREE.GLTFLoader: Three.js does not support texture internalFormat which is different from texture format. ' +
-											'internalFormat will be forced to be the same value as format.' );
-
-			}
-
-			texture.type = textureDef.type !== undefined ? WEBGL_TEXTURE_DATATYPES[ textureDef.type ] : THREE.UnsignedByteType;
-
-			var samplers = json.samplers || {};
-			var sampler = samplers[ textureDef.sampler ] || {};
-
-			texture.magFilter = WEBGL_FILTERS[ sampler.magFilter ] || THREE.LinearFilter;
-			texture.minFilter = WEBGL_FILTERS[ sampler.minFilter ] || THREE.LinearMipMapLinearFilter;
-			texture.wrapS = WEBGL_WRAPPINGS[ sampler.wrapS ] || THREE.RepeatWrapping;
-			texture.wrapT = WEBGL_WRAPPINGS[ sampler.wrapT ] || THREE.RepeatWrapping;
-
-			return texture;
-
-		} );
-
-	};
-
-	/**
-	 * Asynchronously assigns a texture to the given material parameters.
-	 * @param {Object} materialParams
-	 * @param {string} textureName
-	 * @param {number} textureIndex
-	 * @return {Promise}
-	 */
-	GLTFParser.prototype.assignTexture = function ( materialParams, textureName, textureIndex ) {
-
-		return this.getDependency( 'texture', textureIndex ).then( function ( texture ) {
-
-			materialParams[ textureName ] = texture;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
-	 * @param {number} materialIndex
-	 * @return {Promise<THREE.Material>}
-	 */
-	GLTFParser.prototype.loadMaterial = function ( materialIndex ) {
-
-		var parser = this;
-		var json = this.json;
-		var extensions = this.extensions;
-		var materialDef = this.json.materials[ materialIndex ];
-
-		var materialType;
-		var materialParams = {};
-		var materialExtensions = materialDef.extensions || {};
-
-		var pending = [];
-
-		if ( materialExtensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ] ) {
-
-			var sgExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];
-			materialType = sgExtension.getMaterialType( materialDef );
-			pending.push( sgExtension.extendParams( materialParams, materialDef, parser ) );
-
-		} else if ( materialDef.pbrMetallicRoughness !== undefined ) {
-
-			// Specification:
-			// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#metallic-roughness-material
-
-			materialType = THREE.MeshStandardMaterial;
-
-			var metallicRoughness = materialDef.pbrMetallicRoughness;
-
-			materialParams.color = new THREE.Color( 1.0, 1.0, 1.0 );
-			materialParams.opacity = 1.0;
-
-			if ( Array.isArray( metallicRoughness.baseColorFactor ) ) {
-
-				var array = metallicRoughness.baseColorFactor;
-
-				materialParams.color.fromArray( array );
-				materialParams.opacity = array[ 3 ];
-
-			}
-
-			if ( metallicRoughness.baseColorTexture !== undefined ) {
-
-				pending.push( parser.assignTexture( materialParams, 'map', metallicRoughness.baseColorTexture.index ) );
-
-			}
-
-			materialParams.metalness = metallicRoughness.metallicFactor !== undefined ? metallicRoughness.metallicFactor : 1.0;
-			materialParams.roughness = metallicRoughness.roughnessFactor !== undefined ? metallicRoughness.roughnessFactor : 1.0;
-
-			if ( metallicRoughness.metallicRoughnessTexture !== undefined ) {
-
-				var textureIndex = metallicRoughness.metallicRoughnessTexture.index;
-				pending.push( parser.assignTexture( materialParams, 'metalnessMap', textureIndex ) );
-				pending.push( parser.assignTexture( materialParams, 'roughnessMap', textureIndex ) );
-
-			}
-
-		} else {
-
-			materialType = THREE.MeshPhongMaterial;
-
-		}
-
-		if ( materialDef.doubleSided === true ) {
-
-			materialParams.side = THREE.DoubleSide;
-
-		}
-
-		var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
-
-		if ( alphaMode === ALPHA_MODES.BLEND ) {
-
-			materialParams.transparent = true;
-
-		} else {
-
-			materialParams.transparent = false;
-
-			if ( alphaMode === ALPHA_MODES.MASK ) {
-
-				materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;
-
-			}
-
-		}
-
-		if ( materialDef.normalTexture !== undefined ) {
-
-			pending.push( parser.assignTexture( materialParams, 'normalMap', materialDef.normalTexture.index ) );
-
-			materialParams.normalScale = new THREE.Vector2( 1, 1 );
-
-			if ( materialDef.normalTexture.scale !== undefined ) {
-
-				materialParams.normalScale.set( materialDef.normalTexture.scale, materialDef.normalTexture.scale );
-
-			}
-
-		}
-
-		if ( materialDef.occlusionTexture !== undefined ) {
-
-			pending.push( parser.assignTexture( materialParams, 'aoMap', materialDef.occlusionTexture.index ) );
-
-			if ( materialDef.occlusionTexture.strength !== undefined ) {
-
-				materialParams.aoMapIntensity = materialDef.occlusionTexture.strength;
-
-			}
-
-		}
-
-		if ( materialDef.emissiveFactor !== undefined ) {
-
-			if ( materialType === THREE.MeshBasicMaterial ) {
-
-				materialParams.color = new THREE.Color().fromArray( materialDef.emissiveFactor );
-
-			} else {
-
-				materialParams.emissive = new THREE.Color().fromArray( materialDef.emissiveFactor );
-
-			}
-
-		}
-
-		if ( materialDef.emissiveTexture !== undefined ) {
-
-			if ( materialType === THREE.MeshBasicMaterial ) {
-
-				pending.push( parser.assignTexture( materialParams, 'map', materialDef.emissiveTexture.index ) );
-
-			} else {
-
-				pending.push( parser.assignTexture( materialParams, 'emissiveMap', materialDef.emissiveTexture.index ) );
-
-			}
-
-		}
-
-		return Promise.all( pending ).then( function () {
-
-			var material;
-
-			if ( materialType === THREE.ShaderMaterial ) {
-
-				material = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].createMaterial( materialParams );
-
-			} else {
-
-				material = new materialType( materialParams );
-
-			}
-
-			if ( materialDef.name !== undefined ) material.name = materialDef.name;
-
-			// Normal map textures use OpenGL conventions:
-			// https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#materialnormaltexture
-			if ( material.normalScale ) {
-
-				material.normalScale.x = - material.normalScale.x;
-
-			}
-
-			// emissiveTexture and baseColorTexture use sRGB encoding.
-			if ( material.map ) material.map.encoding = THREE.sRGBEncoding;
-			if ( material.emissiveMap ) material.emissiveMap.encoding = THREE.sRGBEncoding;
-
-			if ( materialDef.extras ) material.userData = materialDef.extras;
-
-			return material;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
-	 * @param {Array<Object>} primitives
-	 * @return {Promise<Array<THREE.BufferGeometry>>}
-	 */
-	GLTFParser.prototype.loadGeometries = function ( primitives ) {
-
-		var cache = this.primitiveCache;
-
-		return this.getDependencies( 'accessor' ).then( function ( accessors ) {
-
-			var geometries = [];
-
-			for ( var i = 0, il = primitives.length; i < il; i ++ ) {
-
-				var primitive = primitives[ i ];
-
-				// See if we've already created this geometry
-				var cached = getCachedGeometry( cache, primitive );
-
-				if ( cached ) {
-
-					// Use the cached geometry if it exists
-					geometries.push( cached );
-
-				} else {
-
-					// Otherwise create a new geometry
-					var geometry = new THREE.BufferGeometry();
-
-					var attributes = primitive.attributes;
-
-					for ( var attributeId in attributes ) {
-
-						var attributeEntry = attributes[ attributeId ];
-
-						var bufferAttribute = accessors[ attributeEntry ];
-
-						switch ( attributeId ) {
-
-							case 'POSITION':
-
-								geometry.addAttribute( 'position', bufferAttribute );
-								break;
-
-							case 'NORMAL':
-
-								geometry.addAttribute( 'normal', bufferAttribute );
-								break;
-
-							case 'TEXCOORD_0':
-							case 'TEXCOORD0':
-							case 'TEXCOORD':
-
-								geometry.addAttribute( 'uv', bufferAttribute );
-								break;
-
-							case 'TEXCOORD_1':
-
-								geometry.addAttribute( 'uv2', bufferAttribute );
-								break;
-
-							case 'COLOR_0':
-							case 'COLOR0':
-							case 'COLOR':
-
-								geometry.addAttribute( 'color', bufferAttribute );
-								break;
-
-							case 'WEIGHTS_0':
-							case 'WEIGHT': // WEIGHT semantic deprecated.
-
-								geometry.addAttribute( 'skinWeight', bufferAttribute );
-								break;
-
-							case 'JOINTS_0':
-							case 'JOINT': // JOINT semantic deprecated.
-
-								geometry.addAttribute( 'skinIndex', bufferAttribute );
-								break;
-
-						}
-
-					}
-
-					if ( primitive.indices !== undefined ) {
-
-						geometry.setIndex( accessors[ primitive.indices ] );
-
-					}
-
-					// Cache this geometry
-					cache.push( {
-
-						primitive: primitive,
-						geometry: geometry
-
-					} );
-
-					geometries.push( geometry );
-
-				}
-
-			}
-
-			return geometries;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
-	 * @param {number} meshIndex
-	 * @return {Promise<THREE.Group|THREE.Mesh|THREE.SkinnedMesh>}
-	 */
-	GLTFParser.prototype.loadMesh = function ( meshIndex ) {
-
-		var scope = this;
-		var json = this.json;
-		var extensions = this.extensions;
-
-		var meshDef = this.json.meshes[ meshIndex ];
-
-		return this.getMultiDependencies( [
-
-			'accessor',
-			'material'
-
-		] ).then( function ( dependencies ) {
-
-			var group = new THREE.Group();
-
-			var primitives = meshDef.primitives;
-
-			return scope.loadGeometries( primitives ).then( function ( geometries ) {
-
-				for ( var i = 0, il = primitives.length; i < il; i ++ ) {
-
-					var primitive = primitives[ i ];
-					var geometry = geometries[ i ];
-
-					var material = primitive.material === undefined
-						? createDefaultMaterial()
-						: dependencies.materials[ primitive.material ];
-
-					if ( material.aoMap
-							&& geometry.attributes.uv2 === undefined
-							&& geometry.attributes.uv !== undefined ) {
-
-						console.log( 'THREE.GLTFLoader: Duplicating UVs to support aoMap.' );
-						geometry.addAttribute( 'uv2', new THREE.BufferAttribute( geometry.attributes.uv.array, 2 ) );
-
-					}
-
-					// If the material will be modified later on, clone it now.
-					var useVertexColors = geometry.attributes.color !== undefined;
-					var useFlatShading = geometry.attributes.normal === undefined;
-					var useSkinning = meshDef.isSkinnedMesh === true;
-					var useMorphTargets = primitive.targets !== undefined;
-
-					if ( useVertexColors || useFlatShading || useSkinning || useMorphTargets ) {
-
-						if ( material.isGLTFSpecularGlossinessMaterial ) {
-
-							var specGlossExtension = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ];
-							material = specGlossExtension.cloneMaterial( material );
-
-						} else {
-
-							material = material.clone();
-
-						}
-
-					}
-
-					if ( useVertexColors ) {
-
-						material.vertexColors = THREE.VertexColors;
-						material.needsUpdate = true;
-
-					}
-
-					if ( useFlatShading ) {
-
-						material.flatShading = true;
-
-					}
-
-					var mesh;
-
-					if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLES ||
-						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ||
-						primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ||
-						primitive.mode === undefined ) {
-
-						if ( useSkinning ) {
-
-							mesh = new THREE.SkinnedMesh( geometry, material );
-							material.skinning = true;
-
-						} else {
-
-							mesh = new THREE.Mesh( geometry, material );
-
-						}
-
-						if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP ) {
-
-							mesh.drawMode = THREE.TriangleStripDrawMode;
-
-						} else if ( primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN ) {
-
-							mesh.drawMode = THREE.TriangleFanDrawMode;
-
-						}
-
-					} else if ( primitive.mode === WEBGL_CONSTANTS.LINES ||
-						primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ||
-						primitive.mode === WEBGL_CONSTANTS.LINE_LOOP ) {
-
-						var cacheKey = 'LineBasicMaterial:' + material.uuid;
-
-						var lineMaterial = scope.cache.get( cacheKey );
-
-						if ( ! lineMaterial ) {
-
-							lineMaterial = new THREE.LineBasicMaterial();
-							THREE.Material.prototype.copy.call( lineMaterial, material );
-							lineMaterial.color.copy( material.color );
-							lineMaterial.lights = false;  // LineBasicMaterial doesn't support lights yet
-
-							scope.cache.add( cacheKey, lineMaterial );
-
-						}
-
-						material = lineMaterial;
-
-						if ( primitive.mode === WEBGL_CONSTANTS.LINES ) {
-
-							mesh = new THREE.LineSegments( geometry, material );
-
-						} else if ( primitive.mode === WEBGL_CONSTANTS.LINE_STRIP ) {
-
-							mesh = new THREE.Line( geometry, material );
-
-						} else {
-
-							mesh = new THREE.LineLoop( geometry, material );
-
-						}
-
-					} else if ( primitive.mode === WEBGL_CONSTANTS.POINTS ) {
-
-						var cacheKey = 'PointsMaterial:' + material.uuid;
-
-						var pointsMaterial = scope.cache.get( cacheKey );
-
-						if ( ! pointsMaterial ) {
-
-							pointsMaterial = new THREE.PointsMaterial();
-							THREE.Material.prototype.copy.call( pointsMaterial, material );
-							pointsMaterial.color.copy( material.color );
-							pointsMaterial.map = material.map;
-							pointsMaterial.lights = false;  // PointsMaterial doesn't support lights yet
-
-							scope.cache.add( cacheKey, pointsMaterial );
-
-						}
-
-						material = pointsMaterial;
-
-						mesh = new THREE.Points( geometry, material );
-
-					} else {
-
-						throw new Error( 'THREE.GLTFLoader: Primitive mode unsupported: ' + primitive.mode );
-
-					}
-
-					mesh.name = meshDef.name || ( 'mesh_' + meshIndex );
-
-					if ( useMorphTargets ) {
-
-						addMorphTargets( mesh, meshDef, primitive, dependencies.accessors );
-
-					}
-
-					if ( meshDef.extras !== undefined ) mesh.userData = meshDef.extras;
-					if ( primitive.extras !== undefined ) mesh.geometry.userData = primitive.extras;
-
-					// for Specular-Glossiness.
-					if ( material.isGLTFSpecularGlossinessMaterial === true ) {
-
-						mesh.onBeforeRender = extensions[ EXTENSIONS.KHR_MATERIALS_PBR_SPECULAR_GLOSSINESS ].refreshUniforms;
-
-					}
-
-					if ( primitives.length > 1 ) {
-
-						mesh.name += '_' + i;
-
-						group.add( mesh );
-
-					} else {
-
-						return mesh;
-
-					}
-
-				}
-
-				return group;
-
-			} );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
-	 * @param {number} cameraIndex
-	 * @return {Promise<THREE.Camera>}
-	 */
-	GLTFParser.prototype.loadCamera = function ( cameraIndex ) {
-
-		var camera;
-		var cameraDef = this.json.cameras[ cameraIndex ];
-		var params = cameraDef[ cameraDef.type ];
-
-		if ( ! params ) {
-
-			console.warn( 'THREE.GLTFLoader: Missing camera parameters.' );
-			return;
-
-		}
-
-		if ( cameraDef.type === 'perspective' ) {
-
-			var aspectRatio = params.aspectRatio || 1;
-			var xfov = params.yfov * aspectRatio;
-
-			camera = new THREE.PerspectiveCamera( THREE.Math.radToDeg( xfov ), aspectRatio, params.znear || 1, params.zfar || 2e6 );
-
-		} else if ( cameraDef.type === 'orthographic' ) {
-
-			camera = new THREE.OrthographicCamera( params.xmag / - 2, params.xmag / 2, params.ymag / 2, params.ymag / - 2, params.znear, params.zfar );
-
-		}
-
-		if ( cameraDef.name !== undefined ) camera.name = cameraDef.name;
-		if ( cameraDef.extras ) camera.userData = cameraDef.extras;
-
-		return Promise.resolve( camera );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins
-	 * @param {number} skinIndex
-	 * @return {Promise<Object>}
-	 */
-	GLTFParser.prototype.loadSkin = function ( skinIndex ) {
-
-		var skinDef = this.json.skins[ skinIndex ];
-
-		var skinEntry = { joints: skinDef.joints };
-
-		if ( skinDef.inverseBindMatrices === undefined ) {
-
-			return Promise.resolve( skinEntry );
-
-		}
-
-		return this.getDependency( 'accessor', skinDef.inverseBindMatrices ).then( function ( accessor ) {
-
-			skinEntry.inverseBindMatrices = accessor;
-
-			return skinEntry;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
-	 * @param {number} animationIndex
-	 * @return {Promise<THREE.AnimationClip>}
-	 */
-	GLTFParser.prototype.loadAnimation = function ( animationIndex ) {
-
-		var json = this.json;
-
-		var animationDef = this.json.animations[ animationIndex ];
-
-		return this.getMultiDependencies( [
-
-			'accessor',
-			'node'
-
-		] ).then( function ( dependencies ) {
-
-			var tracks = [];
-
-			for ( var i = 0, il = animationDef.channels.length; i < il; i ++ ) {
-
-				var channel = animationDef.channels[ i ];
-				var sampler = animationDef.samplers[ channel.sampler ];
-
-				if ( sampler ) {
-
-					var target = channel.target;
-					var name = target.node !== undefined ? target.node : target.id; // NOTE: target.id is deprecated.
-					var input = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.input ] : sampler.input;
-					var output = animationDef.parameters !== undefined ? animationDef.parameters[ sampler.output ] : sampler.output;
-
-					var inputAccessor = dependencies.accessors[ input ];
-					var outputAccessor = dependencies.accessors[ output ];
-
-					var node = dependencies.nodes[ name ];
-
-					if ( node ) {
-
-						node.updateMatrix();
-						node.matrixAutoUpdate = true;
-
-						var TypedKeyframeTrack;
-
-						switch ( PATH_PROPERTIES[ target.path ] ) {
-
-							case PATH_PROPERTIES.weights:
-
-								TypedKeyframeTrack = THREE.NumberKeyframeTrack;
-								break;
-
-							case PATH_PROPERTIES.rotation:
-
-								TypedKeyframeTrack = THREE.QuaternionKeyframeTrack;
-								break;
-
-							case PATH_PROPERTIES.position:
-							case PATH_PROPERTIES.scale:
-							default:
-
-								TypedKeyframeTrack = THREE.VectorKeyframeTrack;
-								break;
-
-						}
-
-						var targetName = node.name ? node.name : node.uuid;
-
-						var interpolation = sampler.interpolation !== undefined ? INTERPOLATION[ sampler.interpolation ] : THREE.InterpolateLinear;
-
-						var targetNames = [];
-
-						if ( PATH_PROPERTIES[ target.path ] === PATH_PROPERTIES.weights ) {
-
-							// node should be THREE.Group here but
-							// PATH_PROPERTIES.weights(morphTargetInfluences) should be
-							// the property of a mesh object under node.
-							// So finding targets here.
-
-							node.traverse( function ( object ) {
-
-								if ( object.isMesh === true && object.material.morphTargets === true ) {
-
-									targetNames.push( object.name ? object.name : object.uuid );
-
-								}
-
-							} );
-
-						} else {
-
-							targetNames.push( targetName );
-
-						}
-
-						// KeyframeTrack.optimize() will modify given 'times' and 'values'
-						// buffers before creating a truncated copy to keep. Because buffers may
-						// be reused by other tracks, make copies here.
-						for ( var j = 0, jl = targetNames.length; j < jl; j ++ ) {
-
-							var track = new TypedKeyframeTrack(
-								targetNames[ j ] + '.' + PATH_PROPERTIES[ target.path ],
-								THREE.AnimationUtils.arraySlice( inputAccessor.array, 0 ),
-								THREE.AnimationUtils.arraySlice( outputAccessor.array, 0 ),
-								interpolation
-							);
-
-							// Here is the trick to enable custom interpolation.
-							// Overrides .createInterpolant in a factory method which creates custom interpolation.
-							if ( sampler.interpolation === 'CUBICSPLINE' ) {
-
-								track.createInterpolant = function ( result ) {
-
-									// A CUBICSPLINE keyframe in glTF has three output values for each input value,
-									// representing inTangent, splineVertex, and outTangent. As a result, track.getValueSize()
-									// must be divided by three to get the interpolant's sampleSize argument.
-
-									return new GLTFCubicSplineInterpolant( this.times, this.values, this.getValueSize() / 3, result );
-
-								};
-
-							}
-
-							tracks.push( track );
-
-						}
-
-					}
-
-				}
-
-			}
-
-			var name = animationDef.name !== undefined ? animationDef.name : 'animation_' + animationIndex;
-
-			return new THREE.AnimationClip( name, undefined, tracks );
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
-	 * @param {number} nodeIndex
-	 * @return {Promise<THREE.Object3D>}
-	 */
-	GLTFParser.prototype.loadNode = function ( nodeIndex ) {
-
-		var json = this.json;
-		var extensions = this.extensions;
-
-		var meshReferences = this.json.meshReferences;
-		var meshUses = this.json.meshUses;
-
-		var nodeDef = this.json.nodes[ nodeIndex ];
-
-		return this.getMultiDependencies( [
-
-			'mesh',
-			'skin',
-			'camera'
-
-		] ).then( function ( dependencies ) {
-
-			var node;
-
-			if ( nodeDef.isBone === true ) {
-
-				node = new THREE.Bone();
-
-			} else if ( nodeDef.mesh !== undefined ) {
-
-				var mesh = dependencies.meshes[ nodeDef.mesh ];
-
-				node = mesh.clone();
-
-				// for Specular-Glossiness
-				if ( mesh.isGroup === true ) {
-
-					for ( var i = 0, il = mesh.children.length; i < il; i ++ ) {
-
-						var child = mesh.children[ i ];
-
-						if ( child.material && child.material.isGLTFSpecularGlossinessMaterial === true ) {
-
-							node.children[ i ].onBeforeRender = child.onBeforeRender;
-
-						}
-
-					}
-
-				} else {
-
-					if ( mesh.material && mesh.material.isGLTFSpecularGlossinessMaterial === true ) {
-
-						node.onBeforeRender = mesh.onBeforeRender;
-
-					}
-
-				}
-
-				if ( meshReferences[ nodeDef.mesh ] > 1 ) {
-
-					node.name += '_instance_' + meshUses[ nodeDef.mesh ] ++;
-
-				}
-
-			} else if ( nodeDef.camera !== undefined ) {
-
-				node = dependencies.cameras[ nodeDef.camera ];
-
-			} else if ( nodeDef.extensions
-					 && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS ]
-					 && nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS ].light !== undefined ) {
-
-				var lights = extensions[ EXTENSIONS.KHR_LIGHTS ].lights;
-				node = lights[ nodeDef.extensions[ EXTENSIONS.KHR_LIGHTS ].light ];
-
-			} else {
-
-				node = new THREE.Object3D();
-
-			}
-
-			if ( nodeDef.name !== undefined ) {
-
-				node.name = THREE.PropertyBinding.sanitizeNodeName( nodeDef.name );
-
-			}
-
-			if ( nodeDef.extras ) node.userData = nodeDef.extras;
-
-			if ( nodeDef.matrix !== undefined ) {
-
-				var matrix = new THREE.Matrix4();
-				matrix.fromArray( nodeDef.matrix );
-				node.applyMatrix( matrix );
-
-			} else {
-
-				if ( nodeDef.translation !== undefined ) {
-
-					node.position.fromArray( nodeDef.translation );
-
-				}
-
-				if ( nodeDef.rotation !== undefined ) {
-
-					node.quaternion.fromArray( nodeDef.rotation );
-
-				}
-
-				if ( nodeDef.scale !== undefined ) {
-
-					node.scale.fromArray( nodeDef.scale );
-
-				}
-
-			}
-
-			return node;
-
-		} );
-
-	};
-
-	/**
-	 * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
-	 * @param {number} sceneIndex
-	 * @return {Promise<THREE.Scene>}
-	 */
-	GLTFParser.prototype.loadScene = function () {
-
-		// scene node hierachy builder
-
-		function buildNodeHierachy( nodeId, parentObject, json, allNodes, skins ) {
-
-			var node = allNodes[ nodeId ];
-			var nodeDef = json.nodes[ nodeId ];
-
-			// build skeleton here as well
-
-			if ( nodeDef.skin !== undefined ) {
-
-				var meshes = node.isGroup === true ? node.children : [ node ];
-
-				for ( var i = 0, il = meshes.length; i < il; i ++ ) {
-
-					var mesh = meshes[ i ];
-					var skinEntry = skins[ nodeDef.skin ];
-
-					var bones = [];
-					var boneInverses = [];
-
-					for ( var j = 0, jl = skinEntry.joints.length; j < jl; j ++ ) {
-
-						var jointId = skinEntry.joints[ j ];
-						var jointNode = allNodes[ jointId ];
-
-						if ( jointNode ) {
-
-							bones.push( jointNode );
-
-							var mat = new THREE.Matrix4();
-
-							if ( skinEntry.inverseBindMatrices !== undefined ) {
-
-								mat.fromArray( skinEntry.inverseBindMatrices.array, j * 16 );
-
-							}
-
-							boneInverses.push( mat );
-
-						} else {
-
-							console.warn( 'THREE.GLTFLoader: Joint "%s" could not be found.', jointId );
-
-						}
-
-					}
-
-					mesh.bind( new THREE.Skeleton( bones, boneInverses ), mesh.matrixWorld );
-
-				}
-
-			}
-
-			// build node hierachy
-
-			parentObject.add( node );
-
-			if ( nodeDef.children ) {
-
-				var children = nodeDef.children;
-
-				for ( var i = 0, il = children.length; i < il; i ++ ) {
-
-					var child = children[ i ];
-					buildNodeHierachy( child, node, json, allNodes, skins );
-
-				}
-
-			}
-
-		}
-
-		return function loadScene( sceneIndex ) {
-
-			var json = this.json;
-			var extensions = this.extensions;
-			var sceneDef = this.json.scenes[ sceneIndex ];
-
-			return this.getMultiDependencies( [
-
-				'node',
-				'skin'
-
-			] ).then( function ( dependencies ) {
-
-				var scene = new THREE.Scene();
-				if ( sceneDef.name !== undefined ) scene.name = sceneDef.name;
-
-				if ( sceneDef.extras ) scene.userData = sceneDef.extras;
-
-				var nodeIds = sceneDef.nodes || [];
-
-				for ( var i = 0, il = nodeIds.length; i < il; i ++ ) {
-
-					buildNodeHierachy( nodeIds[ i ], scene, json, dependencies.nodes, dependencies.skins );
-
-				}
-
-				// Ambient lighting, if present, is always attached to the scene root.
-				if ( sceneDef.extensions
-						 && sceneDef.extensions[ EXTENSIONS.KHR_LIGHTS ]
-						 && sceneDef.extensions[ EXTENSIONS.KHR_LIGHTS ].light !== undefined ) {
-
-					var lights = extensions[ EXTENSIONS.KHR_LIGHTS ].lights;
-					scene.add( lights[ sceneDef.extensions[ EXTENSIONS.KHR_LIGHTS ].light ] );
-
-				}
-
-				return scene;
-
-			} );
-
-		};
-
-	}();
-
-	return GLTFLoader;
-
-} )();
-
-},{}],43:[function(_dereq_,module,exports){
-/**
- * Loads a Wavefront .mtl file specifying materials
- *
- * @author angelxuanchang
- */
-
-THREE.MTLLoader = function ( manager ) {
-
-	this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
-
-};
-
-THREE.MTLLoader.prototype = {
-
-	constructor: THREE.MTLLoader,
-
-	/**
-	 * Loads and parses a MTL asset from a URL.
-	 *
-	 * @param {String} url - URL to the MTL file.
-	 * @param {Function} [onLoad] - Callback invoked with the loaded object.
-	 * @param {Function} [onProgress] - Callback for download progress.
-	 * @param {Function} [onError] - Callback for download errors.
-	 *
-	 * @see setPath setTexturePath
-	 *
-	 * @note In order for relative texture references to resolve correctly
-	 * you must call setPath and/or setTexturePath explicitly prior to load.
-	 */
-	load: function ( url, onLoad, onProgress, onError ) {
-
-		var scope = this;
-
-		var loader = new THREE.FileLoader( this.manager );
-		loader.setPath( this.path );
-		loader.load( url, function ( text ) {
-
-			onLoad( scope.parse( text ) );
-
-		}, onProgress, onError );
-
-	},
-
-	/**
-	 * Set base path for resolving references.
-	 * If set this path will be prepended to each loaded and found reference.
-	 *
-	 * @see setTexturePath
-	 * @param {String} path
-	 *
-	 * @example
-	 *     mtlLoader.setPath( 'assets/obj/' );
-	 *     mtlLoader.load( 'my.mtl', ... );
-	 */
-	setPath: function ( path ) {
-
-		this.path = path;
-
-	},
-
-	/**
-	 * Set base path for resolving texture references.
-	 * If set this path will be prepended found texture reference.
-	 * If not set and setPath is, it will be used as texture base path.
-	 *
-	 * @see setPath
-	 * @param {String} path
-	 *
-	 * @example
-	 *     mtlLoader.setPath( 'assets/obj/' );
-	 *     mtlLoader.setTexturePath( 'assets/textures/' );
-	 *     mtlLoader.load( 'my.mtl', ... );
-	 */
-	setTexturePath: function ( path ) {
-
-		this.texturePath = path;
-
-	},
-
-	setBaseUrl: function ( path ) {
-
-		console.warn( 'THREE.MTLLoader: .setBaseUrl() is deprecated. Use .setTexturePath( path ) for texture path or .setPath( path ) for general base path instead.' );
-
-		this.setTexturePath( path );
-
-	},
-
-	setCrossOrigin: function ( value ) {
-
-		this.crossOrigin = value;
-
-	},
-
-	setMaterialOptions: function ( value ) {
-
-		this.materialOptions = value;
-
-	},
-
-	/**
-	 * Parses a MTL file.
-	 *
-	 * @param {String} text - Content of MTL file
-	 * @return {THREE.MTLLoader.MaterialCreator}
-	 *
-	 * @see setPath setTexturePath
-	 *
-	 * @note In order for relative texture references to resolve correctly
-	 * you must call setPath and/or setTexturePath explicitly prior to parse.
-	 */
-	parse: function ( text ) {
-
-		var lines = text.split( '\n' );
-		var info = {};
-		var delimiter_pattern = /\s+/;
-		var materialsInfo = {};
-
-		for ( var i = 0; i < lines.length; i ++ ) {
-
-			var line = lines[ i ];
-			line = line.trim();
-
-			if ( line.length === 0 || line.charAt( 0 ) === '#' ) {
-
-				// Blank line or comment ignore
-				continue;
-
-			}
-
-			var pos = line.indexOf( ' ' );
-
-			var key = ( pos >= 0 ) ? line.substring( 0, pos ) : line;
-			key = key.toLowerCase();
-
-			var value = ( pos >= 0 ) ? line.substring( pos + 1 ) : '';
-			value = value.trim();
-
-			if ( key === 'newmtl' ) {
-
-				// New material
-
-				info = { name: value };
-				materialsInfo[ value ] = info;
-
-			} else if ( info ) {
-
-				if ( key === 'ka' || key === 'kd' || key === 'ks' ) {
-
-					var ss = value.split( delimiter_pattern, 3 );
-					info[ key ] = [ parseFloat( ss[ 0 ] ), parseFloat( ss[ 1 ] ), parseFloat( ss[ 2 ] ) ];
-
-				} else {
-
-					info[ key ] = value;
-
-				}
-
-			}
-
-		}
-
-		var materialCreator = new THREE.MTLLoader.MaterialCreator( this.texturePath || this.path, this.materialOptions );
-		materialCreator.setCrossOrigin( this.crossOrigin );
-		materialCreator.setManager( this.manager );
-		materialCreator.setMaterials( materialsInfo );
-		return materialCreator;
-
-	}
-
-};
-
-/**
- * Create a new THREE-MTLLoader.MaterialCreator
- * @param baseUrl - Url relative to which textures are loaded
- * @param options - Set of options on how to construct the materials
- *                  side: Which side to apply the material
- *                        THREE.FrontSide (default), THREE.BackSide, THREE.DoubleSide
- *                  wrap: What type of wrapping to apply for textures
- *                        THREE.RepeatWrapping (default), THREE.ClampToEdgeWrapping, THREE.MirroredRepeatWrapping
- *                  normalizeRGB: RGBs need to be normalized to 0-1 from 0-255
- *                                Default: false, assumed to be already normalized
- *                  ignoreZeroRGBs: Ignore values of RGBs (Ka,Kd,Ks) that are all 0's
- *                                  Default: false
- * @constructor
- */
-
-THREE.MTLLoader.MaterialCreator = function ( baseUrl, options ) {
-
-	this.baseUrl = baseUrl || '';
-	this.options = options;
-	this.materialsInfo = {};
-	this.materials = {};
-	this.materialsArray = [];
-	this.nameLookup = {};
-
-	this.side = ( this.options && this.options.side ) ? this.options.side : THREE.FrontSide;
-	this.wrap = ( this.options && this.options.wrap ) ? this.options.wrap : THREE.RepeatWrapping;
-
-};
-
-THREE.MTLLoader.MaterialCreator.prototype = {
-
-	constructor: THREE.MTLLoader.MaterialCreator,
-
-	crossOrigin: 'Anonymous',
-
-	setCrossOrigin: function ( value ) {
-
-		this.crossOrigin = value;
-
-	},
-
-	setManager: function ( value ) {
-
-		this.manager = value;
-
-	},
-
-	setMaterials: function ( materialsInfo ) {
-
-		this.materialsInfo = this.convert( materialsInfo );
-		this.materials = {};
-		this.materialsArray = [];
-		this.nameLookup = {};
-
-	},
-
-	convert: function ( materialsInfo ) {
-
-		if ( ! this.options ) return materialsInfo;
-
-		var converted = {};
-
-		for ( var mn in materialsInfo ) {
-
-			// Convert materials info into normalized form based on options
-
-			var mat = materialsInfo[ mn ];
-
-			var covmat = {};
-
-			converted[ mn ] = covmat;
-
-			for ( var prop in mat ) {
-
-				var save = true;
-				var value = mat[ prop ];
-				var lprop = prop.toLowerCase();
-
-				switch ( lprop ) {
-
-					case 'kd':
-					case 'ka':
-					case 'ks':
-
-						// Diffuse color (color under white light) using RGB values
-
-						if ( this.options && this.options.normalizeRGB ) {
-
-							value = [ value[ 0 ] / 255, value[ 1 ] / 255, value[ 2 ] / 255 ];
-
-						}
-
-						if ( this.options && this.options.ignoreZeroRGBs ) {
-
-							if ( value[ 0 ] === 0 && value[ 1 ] === 0 && value[ 2 ] === 0 ) {
-
-								// ignore
-
-								save = false;
-
-							}
-
-						}
-
-						break;
-
-					default:
-
-						break;
-
-				}
-
-				if ( save ) {
-
-					covmat[ lprop ] = value;
-
-				}
-
-			}
-
-		}
-
-		return converted;
-
-	},
-
-	preload: function () {
-
-		for ( var mn in this.materialsInfo ) {
-
-			this.create( mn );
-
-		}
-
-	},
-
-	getIndex: function ( materialName ) {
-
-		return this.nameLookup[ materialName ];
-
-	},
-
-	getAsArray: function () {
-
-		var index = 0;
-
-		for ( var mn in this.materialsInfo ) {
-
-			this.materialsArray[ index ] = this.create( mn );
-			this.nameLookup[ mn ] = index;
-			index ++;
-
-		}
-
-		return this.materialsArray;
-
-	},
-
-	create: function ( materialName ) {
-
-		if ( this.materials[ materialName ] === undefined ) {
-
-			this.createMaterial_( materialName );
-
-		}
-
-		return this.materials[ materialName ];
-
-	},
-
-	createMaterial_: function ( materialName ) {
-
-		// Create material
-
-		var scope = this;
-		var mat = this.materialsInfo[ materialName ];
-		var params = {
-
-			name: materialName,
-			side: this.side
-
-		};
-
-		function resolveURL( baseUrl, url ) {
-
-			if ( typeof url !== 'string' || url === '' )
-				return '';
-
-			// Absolute URL
-			if ( /^https?:\/\//i.test( url ) ) return url;
-
-			return baseUrl + url;
-
-		}
-
-		function setMapForType( mapType, value ) {
-
-			if ( params[ mapType ] ) return; // Keep the first encountered texture
-
-			var texParams = scope.getTextureParams( value, params );
-			var map = scope.loadTexture( resolveURL( scope.baseUrl, texParams.url ) );
-
-			map.repeat.copy( texParams.scale );
-			map.offset.copy( texParams.offset );
-
-			map.wrapS = scope.wrap;
-			map.wrapT = scope.wrap;
-
-			params[ mapType ] = map;
-
-		}
-
-		for ( var prop in mat ) {
-
-			var value = mat[ prop ];
-			var n;
-
-			if ( value === '' ) continue;
-
-			switch ( prop.toLowerCase() ) {
-
-				// Ns is material specular exponent
-
-				case 'kd':
-
-					// Diffuse color (color under white light) using RGB values
-
-					params.color = new THREE.Color().fromArray( value );
-
-					break;
-
-				case 'ks':
-
-					// Specular color (color when light is reflected from shiny surface) using RGB values
-					params.specular = new THREE.Color().fromArray( value );
-
-					break;
-
-				case 'map_kd':
-
-					// Diffuse texture map
-
-					setMapForType( "map", value );
-
-					break;
-
-				case 'map_ks':
-
-					// Specular map
-
-					setMapForType( "specularMap", value );
-
-					break;
-
-				case 'norm':
-
-					setMapForType( "normalMap", value );
-
-					break;
-
-				case 'map_bump':
-				case 'bump':
-
-					// Bump texture map
-
-					setMapForType( "bumpMap", value );
-
-					break;
-
-				case 'ns':
-
-					// The specular exponent (defines the focus of the specular highlight)
-					// A high exponent results in a tight, concentrated highlight. Ns values normally range from 0 to 1000.
-
-					params.shininess = parseFloat( value );
-
-					break;
-
-				case 'd':
-					n = parseFloat( value );
-
-					if ( n < 1 ) {
-
-						params.opacity = n;
-						params.transparent = true;
-
-					}
-
-					break;
-
-				case 'tr':
-					n = parseFloat( value );
-
-					if ( this.options && this.options.invertTrProperty ) n = 1 - n;
-
-					if ( n < 1 ) {
-
-						params.opacity = n;
-						params.transparent = true;
-
-					}
-
-					break;
-
-				default:
-					break;
-
-			}
-
-		}
-
-		this.materials[ materialName ] = new THREE.MeshPhongMaterial( params );
-		return this.materials[ materialName ];
-
-	},
-
-	getTextureParams: function ( value, matParams ) {
-
-		var texParams = {
-
-			scale: new THREE.Vector2( 1, 1 ),
-			offset: new THREE.Vector2( 0, 0 )
-
-		 };
-
-		var items = value.split( /\s+/ );
-		var pos;
-
-		pos = items.indexOf( '-bm' );
-
-		if ( pos >= 0 ) {
-
-			matParams.bumpScale = parseFloat( items[ pos + 1 ] );
-			items.splice( pos, 2 );
-
-		}
-
-		pos = items.indexOf( '-s' );
-
-		if ( pos >= 0 ) {
-
-			texParams.scale.set( parseFloat( items[ pos + 1 ] ), parseFloat( items[ pos + 2 ] ) );
-			items.splice( pos, 4 ); // we expect 3 parameters here!
-
-		}
-
-		pos = items.indexOf( '-o' );
-
-		if ( pos >= 0 ) {
-
-			texParams.offset.set( parseFloat( items[ pos + 1 ] ), parseFloat( items[ pos + 2 ] ) );
-			items.splice( pos, 4 ); // we expect 3 parameters here!
-
-		}
-
-		texParams.url = items.join( ' ' ).trim();
-		return texParams;
-
-	},
-
-	loadTexture: function ( url, mapping, onLoad, onProgress, onError ) {
-
-		var texture;
-		var loader = THREE.Loader.Handlers.get( url );
-		var manager = ( this.manager !== undefined ) ? this.manager : THREE.DefaultLoadingManager;
-
-		if ( loader === null ) {
-
-			loader = new THREE.TextureLoader( manager );
-
-		}
-
-		if ( loader.setCrossOrigin ) loader.setCrossOrigin( this.crossOrigin );
-		texture = loader.load( url, onLoad, onProgress, onError );
-
-		if ( mapping !== undefined ) texture.mapping = mapping;
-
-		return texture;
-
-	}
-
-};
-
-},{}],44:[function(_dereq_,module,exports){
-/**
- * @author mrdoob / http://mrdoob.com/
- */
-
-THREE.OBJLoader = ( function () {
-
-	// o object_name | g group_name
-	var object_pattern = /^[og]\s*(.+)?/;
-	// mtllib file_reference
-	var material_library_pattern = /^mtllib /;
-	// usemtl material_name
-	var material_use_pattern = /^usemtl /;
-
-	function ParserState() {
-
-		var state = {
-			objects: [],
-			object: {},
-
-			vertices: [],
-			normals: [],
-			colors: [],
-			uvs: [],
-
-			materialLibraries: [],
-
-			startObject: function ( name, fromDeclaration ) {
-
-				// If the current object (initial from reset) is not from a g/o declaration in the parsed
-				// file. We need to use it for the first parsed g/o to keep things in sync.
-				if ( this.object && this.object.fromDeclaration === false ) {
-
-					this.object.name = name;
-					this.object.fromDeclaration = ( fromDeclaration !== false );
-					return;
-
-				}
-
-				var previousMaterial = ( this.object && typeof this.object.currentMaterial === 'function' ? this.object.currentMaterial() : undefined );
-
-				if ( this.object && typeof this.object._finalize === 'function' ) {
-
-					this.object._finalize( true );
-
-				}
-
-				this.object = {
-					name: name || '',
-					fromDeclaration: ( fromDeclaration !== false ),
-
-					geometry: {
-						vertices: [],
-						normals: [],
-						colors: [],
-						uvs: []
-					},
-					materials: [],
-					smooth: true,
-
-					startMaterial: function ( name, libraries ) {
-
-						var previous = this._finalize( false );
-
-						// New usemtl declaration overwrites an inherited material, except if faces were declared
-						// after the material, then it must be preserved for proper MultiMaterial continuation.
-						if ( previous && ( previous.inherited || previous.groupCount <= 0 ) ) {
-
-							this.materials.splice( previous.index, 1 );
-
-						}
-
-						var material = {
-							index: this.materials.length,
-							name: name || '',
-							mtllib: ( Array.isArray( libraries ) && libraries.length > 0 ? libraries[ libraries.length - 1 ] : '' ),
-							smooth: ( previous !== undefined ? previous.smooth : this.smooth ),
-							groupStart: ( previous !== undefined ? previous.groupEnd : 0 ),
-							groupEnd: - 1,
-							groupCount: - 1,
-							inherited: false,
-
-							clone: function ( index ) {
-
-								var cloned = {
-									index: ( typeof index === 'number' ? index : this.index ),
-									name: this.name,
-									mtllib: this.mtllib,
-									smooth: this.smooth,
-									groupStart: 0,
-									groupEnd: - 1,
-									groupCount: - 1,
-									inherited: false
-								};
-								cloned.clone = this.clone.bind( cloned );
-								return cloned;
-
-							}
-						};
-
-						this.materials.push( material );
-
-						return material;
-
-					},
-
-					currentMaterial: function () {
-
-						if ( this.materials.length > 0 ) {
-
-							return this.materials[ this.materials.length - 1 ];
-
-						}
-
-						return undefined;
-
-					},
-
-					_finalize: function ( end ) {
-
-						var lastMultiMaterial = this.currentMaterial();
-						if ( lastMultiMaterial && lastMultiMaterial.groupEnd === - 1 ) {
-
-							lastMultiMaterial.groupEnd = this.geometry.vertices.length / 3;
-							lastMultiMaterial.groupCount = lastMultiMaterial.groupEnd - lastMultiMaterial.groupStart;
-							lastMultiMaterial.inherited = false;
-
-						}
-
-						// Ignore objects tail materials if no face declarations followed them before a new o/g started.
-						if ( end && this.materials.length > 1 ) {
-
-							for ( var mi = this.materials.length - 1; mi >= 0; mi -- ) {
-
-								if ( this.materials[ mi ].groupCount <= 0 ) {
-
-									this.materials.splice( mi, 1 );
-
-								}
-
-							}
-
-						}
-
-						// Guarantee at least one empty material, this makes the creation later more straight forward.
-						if ( end && this.materials.length === 0 ) {
-
-							this.materials.push( {
-								name: '',
-								smooth: this.smooth
-							} );
-
-						}
-
-						return lastMultiMaterial;
-
-					}
-				};
-
-				// Inherit previous objects material.
-				// Spec tells us that a declared material must be set to all objects until a new material is declared.
-				// If a usemtl declaration is encountered while this new object is being parsed, it will
-				// overwrite the inherited material. Exception being that there was already face declarations
-				// to the inherited material, then it will be preserved for proper MultiMaterial continuation.
-
-				if ( previousMaterial && previousMaterial.name && typeof previousMaterial.clone === 'function' ) {
-
-					var declared = previousMaterial.clone( 0 );
-					declared.inherited = true;
-					this.object.materials.push( declared );
-
-				}
-
-				this.objects.push( this.object );
-
-			},
-
-			finalize: function () {
-
-				if ( this.object && typeof this.object._finalize === 'function' ) {
-
-					this.object._finalize( true );
-
-				}
-
-			},
-
-			parseVertexIndex: function ( value, len ) {
-
-				var index = parseInt( value, 10 );
-				return ( index >= 0 ? index - 1 : index + len / 3 ) * 3;
-
-			},
-
-			parseNormalIndex: function ( value, len ) {
-
-				var index = parseInt( value, 10 );
-				return ( index >= 0 ? index - 1 : index + len / 3 ) * 3;
-
-			},
-
-			parseUVIndex: function ( value, len ) {
-
-				var index = parseInt( value, 10 );
-				return ( index >= 0 ? index - 1 : index + len / 2 ) * 2;
-
-			},
-
-			addVertex: function ( a, b, c ) {
-
-				var src = this.vertices;
-				var dst = this.object.geometry.vertices;
-
-				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
-				dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
-				dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );
-
-			},
-
-			addVertexPoint: function ( a ) {
-
-				var src = this.vertices;
-				var dst = this.object.geometry.vertices;
-
-				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
-
-			},
-
-			addVertexLine: function ( a ) {
-
-				var src = this.vertices;
-				var dst = this.object.geometry.vertices;
-
-				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
-
-			},
-
-			addNormal: function ( a, b, c ) {
-
-				var src = this.normals;
-				var dst = this.object.geometry.normals;
-
-				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
-				dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
-				dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );
-
-			},
-
-			addColor: function ( a, b, c ) {
-
-				var src = this.colors;
-				var dst = this.object.geometry.colors;
-
-				dst.push( src[ a + 0 ], src[ a + 1 ], src[ a + 2 ] );
-				dst.push( src[ b + 0 ], src[ b + 1 ], src[ b + 2 ] );
-				dst.push( src[ c + 0 ], src[ c + 1 ], src[ c + 2 ] );
-
-			},
-
-			addUV: function ( a, b, c ) {
-
-				var src = this.uvs;
-				var dst = this.object.geometry.uvs;
-
-				dst.push( src[ a + 0 ], src[ a + 1 ] );
-				dst.push( src[ b + 0 ], src[ b + 1 ] );
-				dst.push( src[ c + 0 ], src[ c + 1 ] );
-
-			},
-
-			addUVLine: function ( a ) {
-
-				var src = this.uvs;
-				var dst = this.object.geometry.uvs;
-
-				dst.push( src[ a + 0 ], src[ a + 1 ] );
-
-			},
-
-			addFace: function ( a, b, c, ua, ub, uc, na, nb, nc ) {
-
-				var vLen = this.vertices.length;
-
-				var ia = this.parseVertexIndex( a, vLen );
-				var ib = this.parseVertexIndex( b, vLen );
-				var ic = this.parseVertexIndex( c, vLen );
-
-				this.addVertex( ia, ib, ic );
-
-				if ( ua !== undefined ) {
-
-					var uvLen = this.uvs.length;
-
-					ia = this.parseUVIndex( ua, uvLen );
-					ib = this.parseUVIndex( ub, uvLen );
-					ic = this.parseUVIndex( uc, uvLen );
-
-					this.addUV( ia, ib, ic );
-
-				}
-
-				if ( na !== undefined ) {
-
-					// Normals are many times the same. If so, skip function call and parseInt.
-					var nLen = this.normals.length;
-					ia = this.parseNormalIndex( na, nLen );
-
-					ib = na === nb ? ia : this.parseNormalIndex( nb, nLen );
-					ic = na === nc ? ia : this.parseNormalIndex( nc, nLen );
-
-					this.addNormal( ia, ib, ic );
-
-				}
-
-				if ( this.colors.length > 0 ) {
-
-					this.addColor( ia, ib, ic );
-
-				}
-
-			},
-
-			addPointGeometry: function ( vertices ) {
-
-				this.object.geometry.type = 'Points';
-
-				var vLen = this.vertices.length;
-
-				for ( var vi = 0, l = vertices.length; vi < l; vi ++ ) {
-
-					this.addVertexPoint( this.parseVertexIndex( vertices[ vi ], vLen ) );
-
-				}
-
-			},
-
-			addLineGeometry: function ( vertices, uvs ) {
-
-				this.object.geometry.type = 'Line';
-
-				var vLen = this.vertices.length;
-				var uvLen = this.uvs.length;
-
-				for ( var vi = 0, l = vertices.length; vi < l; vi ++ ) {
-
-					this.addVertexLine( this.parseVertexIndex( vertices[ vi ], vLen ) );
-
-				}
-
-				for ( var uvi = 0, l = uvs.length; uvi < l; uvi ++ ) {
-
-					this.addUVLine( this.parseUVIndex( uvs[ uvi ], uvLen ) );
-
-				}
-
-			}
-
-		};
-
-		state.startObject( '', false );
-
-		return state;
-
-	}
-
-	//
-
-	function OBJLoader( manager ) {
-
-		this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
-
-		this.materials = null;
-
-	}
-
-	OBJLoader.prototype = {
-
-		constructor: OBJLoader,
-
-		load: function ( url, onLoad, onProgress, onError ) {
-
-			var scope = this;
-
-			var loader = new THREE.FileLoader( scope.manager );
-			loader.setPath( this.path );
-			loader.load( url, function ( text ) {
-
-				onLoad( scope.parse( text ) );
-
-			}, onProgress, onError );
-
-		},
-
-		setPath: function ( value ) {
-
-			this.path = value;
-
-		},
-
-		setMaterials: function ( materials ) {
-
-			this.materials = materials;
-
-			return this;
-
-		},
-
-		parse: function ( text ) {
-
-			console.time( 'OBJLoader' );
-
-			var state = new ParserState();
-
-			if ( text.indexOf( '\r\n' ) !== - 1 ) {
-
-				// This is faster than String.split with regex that splits on both
-				text = text.replace( /\r\n/g, '\n' );
-
-			}
-
-			if ( text.indexOf( '\\\n' ) !== - 1 ) {
-
-				// join lines separated by a line continuation character (\)
-				text = text.replace( /\\\n/g, '' );
-
-			}
-
-			var lines = text.split( '\n' );
-			var line = '', lineFirstChar = '';
-			var lineLength = 0;
-			var result = [];
-
-			// Faster to just trim left side of the line. Use if available.
-			var trimLeft = ( typeof ''.trimLeft === 'function' );
-
-			for ( var i = 0, l = lines.length; i < l; i ++ ) {
-
-				line = lines[ i ];
-
-				line = trimLeft ? line.trimLeft() : line.trim();
-
-				lineLength = line.length;
-
-				if ( lineLength === 0 ) continue;
-
-				lineFirstChar = line.charAt( 0 );
-
-				// @todo invoke passed in handler if any
-				if ( lineFirstChar === '#' ) continue;
-
-				if ( lineFirstChar === 'v' ) {
-
-					var data = line.split( /\s+/ );
-
-					switch ( data[ 0 ] ) {
-
-						case 'v':
-							state.vertices.push(
-								parseFloat( data[ 1 ] ),
-								parseFloat( data[ 2 ] ),
-								parseFloat( data[ 3 ] )
-							);
-							if ( data.length === 8 ) {
-
-								state.colors.push(
-									parseFloat( data[ 4 ] ),
-									parseFloat( data[ 5 ] ),
-									parseFloat( data[ 6 ] )
-
-								);
-
-							}
-							break;
-						case 'vn':
-							state.normals.push(
-								parseFloat( data[ 1 ] ),
-								parseFloat( data[ 2 ] ),
-								parseFloat( data[ 3 ] )
-							);
-							break;
-						case 'vt':
-							state.uvs.push(
-								parseFloat( data[ 1 ] ),
-								parseFloat( data[ 2 ] )
-							);
-							break;
-
-					}
-
-				} else if ( lineFirstChar === 'f' ) {
-
-					var lineData = line.substr( 1 ).trim();
-					var vertexData = lineData.split( /\s+/ );
-					var faceVertices = [];
-
-					// Parse the face vertex data into an easy to work with format
-
-					for ( var j = 0, jl = vertexData.length; j < jl; j ++ ) {
-
-						var vertex = vertexData[ j ];
-
-						if ( vertex.length > 0 ) {
-
-							var vertexParts = vertex.split( '/' );
-							faceVertices.push( vertexParts );
-
-						}
-
-					}
-
-					// Draw an edge between the first vertex and all subsequent vertices to form an n-gon
-
-					var v1 = faceVertices[ 0 ];
-
-					for ( var j = 1, jl = faceVertices.length - 1; j < jl; j ++ ) {
-
-						var v2 = faceVertices[ j ];
-						var v3 = faceVertices[ j + 1 ];
-
-						state.addFace(
-							v1[ 0 ], v2[ 0 ], v3[ 0 ],
-							v1[ 1 ], v2[ 1 ], v3[ 1 ],
-							v1[ 2 ], v2[ 2 ], v3[ 2 ]
-						);
-
-					}
-
-				} else if ( lineFirstChar === 'l' ) {
-
-					var lineParts = line.substring( 1 ).trim().split( " " );
-					var lineVertices = [], lineUVs = [];
-
-					if ( line.indexOf( "/" ) === - 1 ) {
-
-						lineVertices = lineParts;
-
-					} else {
-
-						for ( var li = 0, llen = lineParts.length; li < llen; li ++ ) {
-
-							var parts = lineParts[ li ].split( "/" );
-
-							if ( parts[ 0 ] !== "" ) lineVertices.push( parts[ 0 ] );
-							if ( parts[ 1 ] !== "" ) lineUVs.push( parts[ 1 ] );
-
-						}
-
-					}
-					state.addLineGeometry( lineVertices, lineUVs );
-
-				} else if ( lineFirstChar === 'p' ) {
-
-					var lineData = line.substr( 1 ).trim();
-					var pointData = lineData.split( " " );
-
-					state.addPointGeometry( pointData );
-
-				} else if ( ( result = object_pattern.exec( line ) ) !== null ) {
-
-					// o object_name
-					// or
-					// g group_name
-
-					// WORKAROUND: https://bugs.chromium.org/p/v8/issues/detail?id=2869
-					// var name = result[ 0 ].substr( 1 ).trim();
-					var name = ( " " + result[ 0 ].substr( 1 ).trim() ).substr( 1 );
-
-					state.startObject( name );
-
-				} else if ( material_use_pattern.test( line ) ) {
-
-					// material
-
-					state.object.startMaterial( line.substring( 7 ).trim(), state.materialLibraries );
-
-				} else if ( material_library_pattern.test( line ) ) {
-
-					// mtl file
-
-					state.materialLibraries.push( line.substring( 7 ).trim() );
-
-				} else if ( lineFirstChar === 's' ) {
-
-					result = line.split( ' ' );
-
-					// smooth shading
-
-					// @todo Handle files that have varying smooth values for a set of faces inside one geometry,
-					// but does not define a usemtl for each face set.
-					// This should be detected and a dummy material created (later MultiMaterial and geometry groups).
-					// This requires some care to not create extra material on each smooth value for "normal" obj files.
-					// where explicit usemtl defines geometry groups.
-					// Example asset: examples/models/obj/cerberus/Cerberus.obj
-
-					/*
-					 * http://paulbourke.net/dataformats/obj/
-					 * or
-					 * http://www.cs.utah.edu/~boulos/cs3505/obj_spec.pdf
-					 *
-					 * From chapter "Grouping" Syntax explanation "s group_number":
-					 * "group_number is the smoothing group number. To turn off smoothing groups, use a value of 0 or off.
-					 * Polygonal elements use group numbers to put elements in different smoothing groups. For free-form
-					 * surfaces, smoothing groups are either turned on or off; there is no difference between values greater
-					 * than 0."
-					 */
-					if ( result.length > 1 ) {
-
-						var value = result[ 1 ].trim().toLowerCase();
-						state.object.smooth = ( value !== '0' && value !== 'off' );
-
-					} else {
-
-						// ZBrush can produce "s" lines #11707
-						state.object.smooth = true;
-
-					}
-					var material = state.object.currentMaterial();
-					if ( material ) material.smooth = state.object.smooth;
-
-				} else {
-
-					// Handle null terminated files without exception
-					if ( line === '\0' ) continue;
-
-					throw new Error( 'THREE.OBJLoader: Unexpected line: "' + line + '"' );
-
-				}
-
-			}
-
-			state.finalize();
-
-			var container = new THREE.Group();
-			container.materialLibraries = [].concat( state.materialLibraries );
-
-			for ( var i = 0, l = state.objects.length; i < l; i ++ ) {
-
-				var object = state.objects[ i ];
-				var geometry = object.geometry;
-				var materials = object.materials;
-				var isLine = ( geometry.type === 'Line' );
-				var isPoints = ( geometry.type === 'Points' );
-				var hasVertexColors = false;
-
-				// Skip o/g line declarations that did not follow with any faces
-				if ( geometry.vertices.length === 0 ) continue;
-
-				var buffergeometry = new THREE.BufferGeometry();
-
-				buffergeometry.addAttribute( 'position', new THREE.Float32BufferAttribute( geometry.vertices, 3 ) );
-
-				if ( geometry.normals.length > 0 ) {
-
-					buffergeometry.addAttribute( 'normal', new THREE.Float32BufferAttribute( geometry.normals, 3 ) );
-
-				} else {
-
-					buffergeometry.computeVertexNormals();
-
-				}
-
-				if ( geometry.colors.length > 0 ) {
-
-					hasVertexColors = true;
-					buffergeometry.addAttribute( 'color', new THREE.Float32BufferAttribute( geometry.colors, 3 ) );
-
-				}
-
-				if ( geometry.uvs.length > 0 ) {
-
-					buffergeometry.addAttribute( 'uv', new THREE.Float32BufferAttribute( geometry.uvs, 2 ) );
-
-				}
-
-				// Create materials
-
-				var createdMaterials = [];
-
-				for ( var mi = 0, miLen = materials.length; mi < miLen; mi ++ ) {
-
-					var sourceMaterial = materials[ mi ];
-					var material = undefined;
-
-					if ( this.materials !== null ) {
-
-						material = this.materials.create( sourceMaterial.name );
-
-						// mtl etc. loaders probably can't create line materials correctly, copy properties to a line material.
-						if ( isLine && material && ! ( material instanceof THREE.LineBasicMaterial ) ) {
-
-							var materialLine = new THREE.LineBasicMaterial();
-							materialLine.copy( material );
-							materialLine.lights = false; // TOFIX
-							material = materialLine;
-
-						} else if ( isPoints && material && ! ( material instanceof THREE.PointsMaterial ) ) {
-
-							var materialPoints = new THREE.PointsMaterial( { size: 10, sizeAttenuation: false } );
-							materialLine.copy( material );
-							material = materialPoints;
-
-						}
-
-					}
-
-					if ( ! material ) {
-
-						if ( isLine ) {
-
-							material = new THREE.LineBasicMaterial();
-
-						} else if ( isPoints ) {
-
-							material = new THREE.PointsMaterial( { size: 1, sizeAttenuation: false } );
-
-						} else {
-
-							material = new THREE.MeshPhongMaterial();
-
-						}
-
-						material.name = sourceMaterial.name;
-
-					}
-
-					material.flatShading = sourceMaterial.smooth ? false : true;
-					material.vertexColors = hasVertexColors ? THREE.VertexColors : THREE.NoColors;
-
-					createdMaterials.push( material );
-
-				}
-
-				// Create mesh
-
-				var mesh;
-
-				if ( createdMaterials.length > 1 ) {
-
-					for ( var mi = 0, miLen = materials.length; mi < miLen; mi ++ ) {
-
-						var sourceMaterial = materials[ mi ];
-						buffergeometry.addGroup( sourceMaterial.groupStart, sourceMaterial.groupCount, mi );
-
-					}
-
-					if ( isLine ) {
-
-						mesh = new THREE.LineSegments( buffergeometry, createdMaterials );
-
-					} else if ( isPoints ) {
-
-						mesh = new THREE.Points( buffergeometry, createdMaterials );
-
-					} else {
-
-						mesh = new THREE.Mesh( buffergeometry, createdMaterials );
-
-					}
-
-				} else {
-
-					if ( isLine ) {
-
-						mesh = new THREE.LineSegments( buffergeometry, createdMaterials[ 0 ] );
-
-					} else if ( isPoints ) {
-
-						mesh = new THREE.Points( buffergeometry, createdMaterials[ 0 ] );
-
-					} else {
-
-						mesh = new THREE.Mesh( buffergeometry, createdMaterials[ 0 ] );
-
-					}
-
-				}
-
-				mesh.name = object.name;
-
-				container.add( mesh );
-
-			}
-
-			console.timeEnd( 'OBJLoader' );
-
-			return container;
-
-		}
-
-	};
-
-	return OBJLoader;
-
-} )();
-
-},{}],45:[function(_dereq_,module,exports){
-
-exports = module.exports = trim;
-
-function trim(str){
-  return str.replace(/^\s*|\s*$/g, '');
-}
-
-exports.left = function(str){
-  return str.replace(/^\s*/, '');
-};
-
-exports.right = function(str){
-  return str.replace(/\s*$/, '');
-};
-
-},{}],46:[function(_dereq_,module,exports){
-module.exports={
-  "_args": [
-    [
-      "webvr-polyfill@0.9.41",
-      "C:\\Users\\Brian Peiris\\Code\\aframevr\\aframe"
-    ]
-  ],
-  "_from": "webvr-polyfill@0.9.41",
-  "_id": "webvr-polyfill@0.9.41",
-  "_inBundle": false,
-  "_integrity": "sha512-xgZPm7DXd2iUn4wh+/ubh1AzYWaHlx6VCmpxgTvoKzi1sMz9ePChQvsq1tm18aUfuzs6dtMrnNWoaQIwl81QsQ==",
-  "_location": "/webvr-polyfill",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "version",
-    "registry": true,
-    "raw": "webvr-polyfill@0.9.41",
-    "name": "webvr-polyfill",
-    "escapedName": "webvr-polyfill",
-    "rawSpec": "0.9.41",
-    "saveSpec": null,
-    "fetchSpec": "0.9.41"
-  },
-  "_requiredBy": [
-    "/"
-  ],
-  "_resolved": "https://registry.npmjs.org/webvr-polyfill/-/webvr-polyfill-0.9.41.tgz",
-  "_spec": "0.9.41",
-  "_where": "C:\\Users\\Brian Peiris\\Code\\aframevr\\aframe",
-  "authors": [
-    "Boris Smus <boris@smus.com>",
-    "Brandon Jones <tojiro@gmail.com>",
-    "Jordan Santell <jordan@jsantell.com>"
-  ],
-  "bugs": {
-    "url": "https://github.com/googlevr/webvr-polyfill/issues"
-  },
-  "description": "Use WebVR today, on mobile or desktop, without requiring a special browser build.",
-  "devDependencies": {
-    "chai": "^3.5.0",
-    "jsdom": "^9.12.0",
-    "mocha": "^3.2.0",
-    "semver": "^5.3.0",
-    "webpack": "^2.6.1",
-    "webpack-dev-server": "2.7.1"
-  },
-  "homepage": "https://github.com/googlevr/webvr-polyfill",
-  "keywords": [
-    "vr",
-    "webvr"
-  ],
-  "license": "Apache-2.0",
-  "main": "src/node-entry",
-  "name": "webvr-polyfill",
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/googlevr/webvr-polyfill.git"
-  },
-  "scripts": {
-    "build": "webpack",
-    "start": "npm run watch",
-    "test": "mocha",
-    "watch": "webpack-dev-server"
-  },
-  "version": "0.9.41"
-}
-
-},{}],47:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = _dereq_('./util.js');
-var WakeLock = _dereq_('./wakelock.js');
-
-// Start at a higher number to reduce chance of conflict.
-var nextDisplayId = 1000;
-var hasShowDeprecationWarning = false;
-
-var defaultLeftBounds = [0, 0, 0.5, 1];
-var defaultRightBounds = [0.5, 0, 0.5, 1];
-
-/**
- * The base class for all VR frame data.
- */
-
-function VRFrameData() {
-  this.leftProjectionMatrix = new Float32Array(16);
-  this.leftViewMatrix = new Float32Array(16);
-  this.rightProjectionMatrix = new Float32Array(16);
-  this.rightViewMatrix = new Float32Array(16);
-  this.pose = null;
-};
-
-/**
- * The base class for all VR displays.
- */
-function VRDisplay() {
-  this.isPolyfilled = true;
-  this.displayId = nextDisplayId++;
-  this.displayName = 'webvr-polyfill displayName';
-
-  this.depthNear = 0.01;
-  this.depthFar = 10000.0;
-
-  this.isConnected = true;
-  this.isPresenting = false;
-  this.capabilities = {
-    hasPosition: false,
-    hasOrientation: false,
-    hasExternalDisplay: false,
-    canPresent: false,
-    maxLayers: 1
-  };
-  this.stageParameters = null;
-
-  // "Private" members.
-  this.waitingForPresent_ = false;
-  this.layer_ = null;
-
-  this.fullscreenElement_ = null;
-  this.fullscreenWrapper_ = null;
-  this.fullscreenElementCachedStyle_ = null;
-
-  this.fullscreenEventTarget_ = null;
-  this.fullscreenChangeHandler_ = null;
-  this.fullscreenErrorHandler_ = null;
-
-  this.wakelock_ = new WakeLock();
-}
-
-VRDisplay.prototype.getFrameData = function(frameData) {
-  // TODO: Technically this should retain it's value for the duration of a frame
-  // but I doubt that's practical to do in javascript.
-  return Util.frameDataFromPose(frameData, this.getPose(), this);
-};
-
-VRDisplay.prototype.getPose = function() {
-  // TODO: Technically this should retain it's value for the duration of a frame
-  // but I doubt that's practical to do in javascript.
-  return this.getImmediatePose();
-};
-
-VRDisplay.prototype.requestAnimationFrame = function(callback) {
-  return window.requestAnimationFrame(callback);
-};
-
-VRDisplay.prototype.cancelAnimationFrame = function(id) {
-  return window.cancelAnimationFrame(id);
-};
-
-VRDisplay.prototype.wrapForFullscreen = function(element) {
-  // Don't wrap in iOS.
-  if (Util.isIOS()) {
-    return element;
-  }
-  if (!this.fullscreenWrapper_) {
-    this.fullscreenWrapper_ = document.createElement('div');
-    var cssProperties = [
-      'height: ' + Math.min(screen.height, screen.width) + 'px !important',
-      'top: 0 !important',
-      'left: 0 !important',
-      'right: 0 !important',
-      'border: 0',
-      'margin: 0',
-      'padding: 0',
-      'z-index: 999999 !important',
-      'position: fixed',
-    ];
-    this.fullscreenWrapper_.setAttribute('style', cssProperties.join('; ') + ';');
-    this.fullscreenWrapper_.classList.add('webvr-polyfill-fullscreen-wrapper');
-  }
-
-  if (this.fullscreenElement_ == element) {
-    return this.fullscreenWrapper_;
-  }
-
-  // Remove any previously applied wrappers
-  this.removeFullscreenWrapper();
-
-  this.fullscreenElement_ = element;
-  var parent = this.fullscreenElement_.parentElement;
-  parent.insertBefore(this.fullscreenWrapper_, this.fullscreenElement_);
-  parent.removeChild(this.fullscreenElement_);
-  this.fullscreenWrapper_.insertBefore(this.fullscreenElement_, this.fullscreenWrapper_.firstChild);
-  this.fullscreenElementCachedStyle_ = this.fullscreenElement_.getAttribute('style');
-
-  var self = this;
-  function applyFullscreenElementStyle() {
-    if (!self.fullscreenElement_) {
-      return;
-    }
-
-    var cssProperties = [
-      'position: absolute',
-      'top: 0',
-      'left: 0',
-      'width: ' + Math.max(screen.width, screen.height) + 'px',
-      'height: ' + Math.min(screen.height, screen.width) + 'px',
-      'border: 0',
-      'margin: 0',
-      'padding: 0',
-    ];
-    self.fullscreenElement_.setAttribute('style', cssProperties.join('; ') + ';');
-  }
-
-  applyFullscreenElementStyle();
-
-  return this.fullscreenWrapper_;
-};
-
-VRDisplay.prototype.removeFullscreenWrapper = function() {
-  if (!this.fullscreenElement_) {
-    return;
-  }
-
-  var element = this.fullscreenElement_;
-  if (this.fullscreenElementCachedStyle_) {
-    element.setAttribute('style', this.fullscreenElementCachedStyle_);
-  } else {
-    element.removeAttribute('style');
-  }
-  this.fullscreenElement_ = null;
-  this.fullscreenElementCachedStyle_ = null;
-
-  var parent = this.fullscreenWrapper_.parentElement;
-  this.fullscreenWrapper_.removeChild(element);
-  parent.insertBefore(element, this.fullscreenWrapper_);
-  parent.removeChild(this.fullscreenWrapper_);
-
-  return element;
-};
-
-VRDisplay.prototype.requestPresent = function(layers) {
-  var wasPresenting = this.isPresenting;
-  var self = this;
-
-  if (!(layers instanceof Array)) {
-    if (!hasShowDeprecationWarning) {
-      console.warn("Using a deprecated form of requestPresent. Should pass in an array of VRLayers.");
-      hasShowDeprecationWarning = true;
-    }
-    layers = [layers];
-  }
-
-  return new Promise(function(resolve, reject) {
-    if (!self.capabilities.canPresent) {
-      reject(new Error('VRDisplay is not capable of presenting.'));
-      return;
-    }
-
-    if (layers.length == 0 || layers.length > self.capabilities.maxLayers) {
-      reject(new Error('Invalid number of layers.'));
-      return;
-    }
-
-    var incomingLayer = layers[0];
-    if (!incomingLayer.source) {
-      /*
-      todo: figure out the correct behavior if the source is not provided.
-      see https://github.com/w3c/webvr/issues/58
-      */
-      resolve();
-      return;
-    }
-
-    var leftBounds = incomingLayer.leftBounds || defaultLeftBounds;
-    var rightBounds = incomingLayer.rightBounds || defaultRightBounds;
-    if (wasPresenting) {
-      // Already presenting, just changing configuration
-      var layer = self.layer_;
-      if (layer.source !== incomingLayer.source) {
-        layer.source = incomingLayer.source;
-      }
-
-      for (var i = 0; i < 4; i++) {
-        layer.leftBounds[i] = leftBounds[i];
-        layer.rightBounds[i] = rightBounds[i];
-      }
-
-      resolve();
-      return;
-    }
-
-    // Was not already presenting.
-    self.layer_ = {
-      predistorted: incomingLayer.predistorted,
-      source: incomingLayer.source,
-      leftBounds: leftBounds.slice(0),
-      rightBounds: rightBounds.slice(0)
-    };
-
-    self.waitingForPresent_ = false;
-    if (self.layer_ && self.layer_.source) {
-      var fullscreenElement = self.wrapForFullscreen(self.layer_.source);
-
-      var onFullscreenChange = function() {
-        var actualFullscreenElement = Util.getFullscreenElement();
-
-        self.isPresenting = (fullscreenElement === actualFullscreenElement);
-        if (self.isPresenting) {
-          if (screen.orientation && screen.orientation.lock) {
-            screen.orientation.lock('landscape-primary').catch(function(error){
-                    console.error('screen.orientation.lock() failed due to', error.message)
-            });
-          }
-          self.waitingForPresent_ = false;
-          self.beginPresent_();
-          resolve();
-        } else {
-          if (screen.orientation && screen.orientation.unlock) {
-            screen.orientation.unlock();
-          }
-          self.removeFullscreenWrapper();
-          self.wakelock_.release();
-          self.endPresent_();
-          self.removeFullscreenListeners_();
-        }
-        self.fireVRDisplayPresentChange_();
-      }
-      var onFullscreenError = function() {
-        if (!self.waitingForPresent_) {
-          return;
-        }
-
-        self.removeFullscreenWrapper();
-        self.removeFullscreenListeners_();
-
-        self.wakelock_.release();
-        self.waitingForPresent_ = false;
-        self.isPresenting = false;
-
-        reject(new Error('Unable to present.'));
-      }
-
-      self.addFullscreenListeners_(fullscreenElement,
-          onFullscreenChange, onFullscreenError);
-
-      if (Util.requestFullscreen(fullscreenElement)) {
-        self.wakelock_.request();
-        self.waitingForPresent_ = true;
-      } else if (Util.isIOS() || Util.isWebViewAndroid()) {
-        // *sigh* Just fake it.
-        self.wakelock_.request();
-        self.isPresenting = true;
-        self.beginPresent_();
-        self.fireVRDisplayPresentChange_();
-        resolve();
-      }
-    }
-
-    if (!self.waitingForPresent_ && !Util.isIOS()) {
-      Util.exitFullscreen();
-      reject(new Error('Unable to present.'));
-    }
-  });
-};
-
-VRDisplay.prototype.exitPresent = function() {
-  var wasPresenting = this.isPresenting;
-  var self = this;
-  this.isPresenting = false;
-  this.layer_ = null;
-  this.wakelock_.release();
-
-  return new Promise(function(resolve, reject) {
-    if (wasPresenting) {
-      if (!Util.exitFullscreen() && Util.isIOS()) {
-        self.endPresent_();
-        self.fireVRDisplayPresentChange_();
-      }
-
-      if (Util.isWebViewAndroid()) {
-        self.removeFullscreenWrapper();
-        self.removeFullscreenListeners_();
-        self.endPresent_();
-        self.fireVRDisplayPresentChange_();
-      }
-
-      resolve();
-    } else {
-      reject(new Error('Was not presenting to VRDisplay.'));
-    }
-  });
-};
-
-VRDisplay.prototype.getLayers = function() {
-  if (this.layer_) {
-    return [this.layer_];
-  }
-  return [];
-};
-
-VRDisplay.prototype.fireVRDisplayPresentChange_ = function() {
-  // Important: unfortunately we cannot have full spec compliance here.
-  // CustomEvent custom fields all go under e.detail (so the VRDisplay ends up
-  // being e.detail.display, instead of e.display as per WebVR spec).
-  var event = new CustomEvent('vrdisplaypresentchange', {detail: {display: this}});
-  window.dispatchEvent(event);
-};
-
-VRDisplay.prototype.fireVRDisplayConnect_ = function() {
-  // Important: unfortunately we cannot have full spec compliance here.
-  // CustomEvent custom fields all go under e.detail (so the VRDisplay ends up
-  // being e.detail.display, instead of e.display as per WebVR spec).
-  var event = new CustomEvent('vrdisplayconnect', {detail: {display: this}});
-  window.dispatchEvent(event);
-};
-
-VRDisplay.prototype.addFullscreenListeners_ = function(element, changeHandler, errorHandler) {
-  this.removeFullscreenListeners_();
-
-  this.fullscreenEventTarget_ = element;
-  this.fullscreenChangeHandler_ = changeHandler;
-  this.fullscreenErrorHandler_ = errorHandler;
-
-  if (changeHandler) {
-    if (document.fullscreenEnabled) {
-      element.addEventListener('fullscreenchange', changeHandler, false);
-    } else if (document.webkitFullscreenEnabled) {
-      element.addEventListener('webkitfullscreenchange', changeHandler, false);
-    } else if (document.mozFullScreenEnabled) {
-      document.addEventListener('mozfullscreenchange', changeHandler, false);
-    } else if (document.msFullscreenEnabled) {
-      element.addEventListener('msfullscreenchange', changeHandler, false);
-    }
-  }
-
-  if (errorHandler) {
-    if (document.fullscreenEnabled) {
-      element.addEventListener('fullscreenerror', errorHandler, false);
-    } else if (document.webkitFullscreenEnabled) {
-      element.addEventListener('webkitfullscreenerror', errorHandler, false);
-    } else if (document.mozFullScreenEnabled) {
-      document.addEventListener('mozfullscreenerror', errorHandler, false);
-    } else if (document.msFullscreenEnabled) {
-      element.addEventListener('msfullscreenerror', errorHandler, false);
-    }
-  }
-};
-
-VRDisplay.prototype.removeFullscreenListeners_ = function() {
-  if (!this.fullscreenEventTarget_)
-    return;
-
-  var element = this.fullscreenEventTarget_;
-
-  if (this.fullscreenChangeHandler_) {
-    var changeHandler = this.fullscreenChangeHandler_;
-    element.removeEventListener('fullscreenchange', changeHandler, false);
-    element.removeEventListener('webkitfullscreenchange', changeHandler, false);
-    document.removeEventListener('mozfullscreenchange', changeHandler, false);
-    element.removeEventListener('msfullscreenchange', changeHandler, false);
-  }
-
-  if (this.fullscreenErrorHandler_) {
-    var errorHandler = this.fullscreenErrorHandler_;
-    element.removeEventListener('fullscreenerror', errorHandler, false);
-    element.removeEventListener('webkitfullscreenerror', errorHandler, false);
-    document.removeEventListener('mozfullscreenerror', errorHandler, false);
-    element.removeEventListener('msfullscreenerror', errorHandler, false);
-  }
-
-  this.fullscreenEventTarget_ = null;
-  this.fullscreenChangeHandler_ = null;
-  this.fullscreenErrorHandler_ = null;
-};
-
-VRDisplay.prototype.beginPresent_ = function() {
-  // Override to add custom behavior when presentation begins.
-};
-
-VRDisplay.prototype.endPresent_ = function() {
-  // Override to add custom behavior when presentation ends.
-};
-
-VRDisplay.prototype.submitFrame = function(pose) {
-  // Override to add custom behavior for frame submission.
-};
-
-VRDisplay.prototype.getEyeParameters = function(whichEye) {
-  // Override to return accurate eye parameters if canPresent is true.
-  return null;
-};
-
-/*
- * Deprecated classes
- */
-
-/**
- * The base class for all VR devices. (Deprecated)
- */
-function VRDevice() {
-  this.isPolyfilled = true;
-  this.hardwareUnitId = 'webvr-polyfill hardwareUnitId';
-  this.deviceId = 'webvr-polyfill deviceId';
-  this.deviceName = 'webvr-polyfill deviceName';
-}
-
-/**
- * The base class for all VR HMD devices. (Deprecated)
- */
-function HMDVRDevice() {
-}
-HMDVRDevice.prototype = new VRDevice();
-
-/**
- * The base class for all VR position sensor devices. (Deprecated)
- */
-function PositionSensorVRDevice() {
-}
-PositionSensorVRDevice.prototype = new VRDevice();
-
-module.exports.VRFrameData = VRFrameData;
-module.exports.VRDisplay = VRDisplay;
-module.exports.VRDevice = VRDevice;
-module.exports.HMDVRDevice = HMDVRDevice;
-module.exports.PositionSensorVRDevice = PositionSensorVRDevice;
-
-},{"./util.js":67,"./wakelock.js":69}],48:[function(_dereq_,module,exports){
-/*
- * Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var CardboardUI = _dereq_('./cardboard-ui.js');
-var Util = _dereq_('./util.js');
-var WGLUPreserveGLState = _dereq_('./deps/wglu-preserve-state.js');
-
-var distortionVS = [
-  'attribute vec2 position;',
-  'attribute vec3 texCoord;',
-
-  'varying vec2 vTexCoord;',
-
-  'uniform vec4 viewportOffsetScale[2];',
-
-  'void main() {',
-  '  vec4 viewport = viewportOffsetScale[int(texCoord.z)];',
-  '  vTexCoord = (texCoord.xy * viewport.zw) + viewport.xy;',
-  '  gl_Position = vec4( position, 1.0, 1.0 );',
-  '}',
-].join('\n');
-
-var distortionFS = [
-  'precision mediump float;',
-  'uniform sampler2D diffuse;',
-
-  'varying vec2 vTexCoord;',
-
-  'void main() {',
-  '  gl_FragColor = texture2D(diffuse, vTexCoord);',
-  '}',
-].join('\n');
-
-/**
- * A mesh-based distorter.
- */
-function CardboardDistorter(gl) {
-  this.gl = gl;
-  this.ctxAttribs = gl.getContextAttributes();
-
-  this.meshWidth = 20;
-  this.meshHeight = 20;
-
-  this.bufferScale = window.WebVRConfig.BUFFER_SCALE;
-
-  this.bufferWidth = gl.drawingBufferWidth;
-  this.bufferHeight = gl.drawingBufferHeight;
-
-  // Patching support
-  this.realBindFramebuffer = gl.bindFramebuffer;
-  this.realEnable = gl.enable;
-  this.realDisable = gl.disable;
-  this.realColorMask = gl.colorMask;
-  this.realClearColor = gl.clearColor;
-  this.realViewport = gl.viewport;
-
-  if (!Util.isIOS()) {
-    this.realCanvasWidth = Object.getOwnPropertyDescriptor(gl.canvas.__proto__, 'width');
-    this.realCanvasHeight = Object.getOwnPropertyDescriptor(gl.canvas.__proto__, 'height');
-  }
-
-  this.isPatched = false;
-
-  // State tracking
-  this.lastBoundFramebuffer = null;
-  this.cullFace = false;
-  this.depthTest = false;
-  this.blend = false;
-  this.scissorTest = false;
-  this.stencilTest = false;
-  this.viewport = [0, 0, 0, 0];
-  this.colorMask = [true, true, true, true];
-  this.clearColor = [0, 0, 0, 0];
-
-  this.attribs = {
-    position: 0,
-    texCoord: 1
-  };
-  this.program = Util.linkProgram(gl, distortionVS, distortionFS, this.attribs);
-  this.uniforms = Util.getProgramUniforms(gl, this.program);
-
-  this.viewportOffsetScale = new Float32Array(8);
-  this.setTextureBounds();
-
-  this.vertexBuffer = gl.createBuffer();
-  this.indexBuffer = gl.createBuffer();
-  this.indexCount = 0;
-
-  this.renderTarget = gl.createTexture();
-  this.framebuffer = gl.createFramebuffer();
-
-  this.depthStencilBuffer = null;
-  this.depthBuffer = null;
-  this.stencilBuffer = null;
-
-  if (this.ctxAttribs.depth && this.ctxAttribs.stencil) {
-    this.depthStencilBuffer = gl.createRenderbuffer();
-  } else if (this.ctxAttribs.depth) {
-    this.depthBuffer = gl.createRenderbuffer();
-  } else if (this.ctxAttribs.stencil) {
-    this.stencilBuffer = gl.createRenderbuffer();
-  }
-
-  this.patch();
-
-  this.onResize();
-
-  if (!window.WebVRConfig.CARDBOARD_UI_DISABLED) {
-    this.cardboardUI = new CardboardUI(gl);
-  }
-};
-
-/**
- * Tears down all the resources created by the distorter and removes any
- * patches.
- */
-CardboardDistorter.prototype.destroy = function() {
-  var gl = this.gl;
-
-  this.unpatch();
-
-  gl.deleteProgram(this.program);
-  gl.deleteBuffer(this.vertexBuffer);
-  gl.deleteBuffer(this.indexBuffer);
-  gl.deleteTexture(this.renderTarget);
-  gl.deleteFramebuffer(this.framebuffer);
-  if (this.depthStencilBuffer) {
-    gl.deleteRenderbuffer(this.depthStencilBuffer);
-  }
-  if (this.depthBuffer) {
-    gl.deleteRenderbuffer(this.depthBuffer);
-  }
-  if (this.stencilBuffer) {
-    gl.deleteRenderbuffer(this.stencilBuffer);
-  }
-
-  if (this.cardboardUI) {
-    this.cardboardUI.destroy();
-  }
-};
-
-
-/**
- * Resizes the backbuffer to match the canvas width and height.
- */
-CardboardDistorter.prototype.onResize = function() {
-  var gl = this.gl;
-  var self = this;
-
-  var glState = [
-    gl.RENDERBUFFER_BINDING,
-    gl.TEXTURE_BINDING_2D, gl.TEXTURE0
-  ];
-
-  WGLUPreserveGLState(gl, glState, function(gl) {
-    // Bind real backbuffer and clear it once. We don't need to clear it again
-    // after that because we're overwriting the same area every frame.
-    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, null);
-
-    // Put things in a good state
-    if (self.scissorTest) { self.realDisable.call(gl, gl.SCISSOR_TEST); }
-    self.realColorMask.call(gl, true, true, true, true);
-    self.realViewport.call(gl, 0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-    self.realClearColor.call(gl, 0, 0, 0, 1);
-
-    gl.clear(gl.COLOR_BUFFER_BIT);
-
-    // Now bind and resize the fake backbuffer
-    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, self.framebuffer);
-
-    gl.bindTexture(gl.TEXTURE_2D, self.renderTarget);
-    gl.texImage2D(gl.TEXTURE_2D, 0, self.ctxAttribs.alpha ? gl.RGBA : gl.RGB,
-        self.bufferWidth, self.bufferHeight, 0,
-        self.ctxAttribs.alpha ? gl.RGBA : gl.RGB, gl.UNSIGNED_BYTE, null);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, self.renderTarget, 0);
-
-    if (self.ctxAttribs.depth && self.ctxAttribs.stencil) {
-      gl.bindRenderbuffer(gl.RENDERBUFFER, self.depthStencilBuffer);
-      gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_STENCIL,
-          self.bufferWidth, self.bufferHeight);
-      gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT,
-          gl.RENDERBUFFER, self.depthStencilBuffer);
-    } else if (self.ctxAttribs.depth) {
-      gl.bindRenderbuffer(gl.RENDERBUFFER, self.depthBuffer);
-      gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16,
-          self.bufferWidth, self.bufferHeight);
-      gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT,
-          gl.RENDERBUFFER, self.depthBuffer);
-    } else if (self.ctxAttribs.stencil) {
-      gl.bindRenderbuffer(gl.RENDERBUFFER, self.stencilBuffer);
-      gl.renderbufferStorage(gl.RENDERBUFFER, gl.STENCIL_INDEX8,
-          self.bufferWidth, self.bufferHeight);
-      gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.STENCIL_ATTACHMENT,
-          gl.RENDERBUFFER, self.stencilBuffer);
-    }
-
-    if (!gl.checkFramebufferStatus(gl.FRAMEBUFFER) === gl.FRAMEBUFFER_COMPLETE) {
-      console.error('Framebuffer incomplete!');
-    }
-
-    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, self.lastBoundFramebuffer);
-
-    if (self.scissorTest) { self.realEnable.call(gl, gl.SCISSOR_TEST); }
-
-    self.realColorMask.apply(gl, self.colorMask);
-    self.realViewport.apply(gl, self.viewport);
-    self.realClearColor.apply(gl, self.clearColor);
-  });
-
-  if (this.cardboardUI) {
-    this.cardboardUI.onResize();
-  }
-};
-
-CardboardDistorter.prototype.patch = function() {
-  if (this.isPatched) {
-    return;
-  }
-
-  var self = this;
-  var canvas = this.gl.canvas;
-  var gl = this.gl;
-
-  if (!Util.isIOS()) {
-    canvas.width = Util.getScreenWidth() * this.bufferScale;
-    canvas.height = Util.getScreenHeight() * this.bufferScale;
-
-    Object.defineProperty(canvas, 'width', {
-      configurable: true,
-      enumerable: true,
-      get: function() {
-        return self.bufferWidth;
-      },
-      set: function(value) {
-        self.bufferWidth = value;
-        self.realCanvasWidth.set.call(canvas, value);
-        self.onResize();
-      }
-    });
-
-    Object.defineProperty(canvas, 'height', {
-      configurable: true,
-      enumerable: true,
-      get: function() {
-        return self.bufferHeight;
-      },
-      set: function(value) {
-        self.bufferHeight = value;
-        self.realCanvasHeight.set.call(canvas, value);
-        self.onResize();
-      }
-    });
-  }
-
-  this.lastBoundFramebuffer = gl.getParameter(gl.FRAMEBUFFER_BINDING);
-
-  if (this.lastBoundFramebuffer == null) {
-    this.lastBoundFramebuffer = this.framebuffer;
-    this.gl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer);
-  }
-
-  this.gl.bindFramebuffer = function(target, framebuffer) {
-    self.lastBoundFramebuffer = framebuffer ? framebuffer : self.framebuffer;
-    // Silently make calls to bind the default framebuffer bind ours instead.
-    self.realBindFramebuffer.call(gl, target, self.lastBoundFramebuffer);
-  };
-
-  this.cullFace = gl.getParameter(gl.CULL_FACE);
-  this.depthTest = gl.getParameter(gl.DEPTH_TEST);
-  this.blend = gl.getParameter(gl.BLEND);
-  this.scissorTest = gl.getParameter(gl.SCISSOR_TEST);
-  this.stencilTest = gl.getParameter(gl.STENCIL_TEST);
-
-  gl.enable = function(pname) {
-    switch (pname) {
-      case gl.CULL_FACE: self.cullFace = true; break;
-      case gl.DEPTH_TEST: self.depthTest = true; break;
-      case gl.BLEND: self.blend = true; break;
-      case gl.SCISSOR_TEST: self.scissorTest = true; break;
-      case gl.STENCIL_TEST: self.stencilTest = true; break;
-    }
-    self.realEnable.call(gl, pname);
-  };
-
-  gl.disable = function(pname) {
-    switch (pname) {
-      case gl.CULL_FACE: self.cullFace = false; break;
-      case gl.DEPTH_TEST: self.depthTest = false; break;
-      case gl.BLEND: self.blend = false; break;
-      case gl.SCISSOR_TEST: self.scissorTest = false; break;
-      case gl.STENCIL_TEST: self.stencilTest = false; break;
-    }
-    self.realDisable.call(gl, pname);
-  };
-
-  this.colorMask = gl.getParameter(gl.COLOR_WRITEMASK);
-  gl.colorMask = function(r, g, b, a) {
-    self.colorMask[0] = r;
-    self.colorMask[1] = g;
-    self.colorMask[2] = b;
-    self.colorMask[3] = a;
-    self.realColorMask.call(gl, r, g, b, a);
-  };
-
-  this.clearColor = gl.getParameter(gl.COLOR_CLEAR_VALUE);
-  gl.clearColor = function(r, g, b, a) {
-    self.clearColor[0] = r;
-    self.clearColor[1] = g;
-    self.clearColor[2] = b;
-    self.clearColor[3] = a;
-    self.realClearColor.call(gl, r, g, b, a);
-  };
-
-  this.viewport = gl.getParameter(gl.VIEWPORT);
-  gl.viewport = function(x, y, w, h) {
-    self.viewport[0] = x;
-    self.viewport[1] = y;
-    self.viewport[2] = w;
-    self.viewport[3] = h;
-    self.realViewport.call(gl, x, y, w, h);
-  };
-
-  this.isPatched = true;
-  Util.safariCssSizeWorkaround(canvas);
-};
-
-CardboardDistorter.prototype.unpatch = function() {
-  if (!this.isPatched) {
-    return;
-  }
-
-  var gl = this.gl;
-  var canvas = this.gl.canvas;
-
-  if (!Util.isIOS()) {
-    Object.defineProperty(canvas, 'width', this.realCanvasWidth);
-    Object.defineProperty(canvas, 'height', this.realCanvasHeight);
-  }
-  canvas.width = this.bufferWidth;
-  canvas.height = this.bufferHeight;
-
-  gl.bindFramebuffer = this.realBindFramebuffer;
-  gl.enable = this.realEnable;
-  gl.disable = this.realDisable;
-  gl.colorMask = this.realColorMask;
-  gl.clearColor = this.realClearColor;
-  gl.viewport = this.realViewport;
-
-  // Check to see if our fake backbuffer is bound and bind the real backbuffer
-  // if that's the case.
-  if (this.lastBoundFramebuffer == this.framebuffer) {
-    gl.bindFramebuffer(gl.FRAMEBUFFER, null);
-  }
-
-  this.isPatched = false;
-
-  setTimeout(function() {
-    Util.safariCssSizeWorkaround(canvas);
-  }, 1);
-};
-
-CardboardDistorter.prototype.setTextureBounds = function(leftBounds, rightBounds) {
-  if (!leftBounds) {
-    leftBounds = [0, 0, 0.5, 1];
-  }
-
-  if (!rightBounds) {
-    rightBounds = [0.5, 0, 0.5, 1];
-  }
-
-  // Left eye
-  this.viewportOffsetScale[0] = leftBounds[0]; // X
-  this.viewportOffsetScale[1] = leftBounds[1]; // Y
-  this.viewportOffsetScale[2] = leftBounds[2]; // Width
-  this.viewportOffsetScale[3] = leftBounds[3]; // Height
-
-  // Right eye
-  this.viewportOffsetScale[4] = rightBounds[0]; // X
-  this.viewportOffsetScale[5] = rightBounds[1]; // Y
-  this.viewportOffsetScale[6] = rightBounds[2]; // Width
-  this.viewportOffsetScale[7] = rightBounds[3]; // Height
-};
-
-/**
- * Performs distortion pass on the injected backbuffer, rendering it to the real
- * backbuffer.
- */
-CardboardDistorter.prototype.submitFrame = function() {
-  var gl = this.gl;
-  var self = this;
-
-  var glState = [];
-
-  if (!window.WebVRConfig.DIRTY_SUBMIT_FRAME_BINDINGS) {
-    glState.push(
-      gl.CURRENT_PROGRAM,
-      gl.ARRAY_BUFFER_BINDING,
-      gl.ELEMENT_ARRAY_BUFFER_BINDING,
-      gl.TEXTURE_BINDING_2D, gl.TEXTURE0
-    );
-  }
-
-  WGLUPreserveGLState(gl, glState, function(gl) {
-    // Bind the real default framebuffer
-    self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, null);
-
-    // Make sure the GL state is in a good place
-    if (self.cullFace) { self.realDisable.call(gl, gl.CULL_FACE); }
-    if (self.depthTest) { self.realDisable.call(gl, gl.DEPTH_TEST); }
-    if (self.blend) { self.realDisable.call(gl, gl.BLEND); }
-    if (self.scissorTest) { self.realDisable.call(gl, gl.SCISSOR_TEST); }
-    if (self.stencilTest) { self.realDisable.call(gl, gl.STENCIL_TEST); }
-    self.realColorMask.call(gl, true, true, true, true);
-    self.realViewport.call(gl, 0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-
-    // If the backbuffer has an alpha channel clear every frame so the page
-    // doesn't show through.
-    if (self.ctxAttribs.alpha || Util.isIOS()) {
-      self.realClearColor.call(gl, 0, 0, 0, 1);
-      gl.clear(gl.COLOR_BUFFER_BIT);
-    }
-
-    // Bind distortion program and mesh
-    gl.useProgram(self.program);
-
-    gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, self.indexBuffer);
-
-    gl.bindBuffer(gl.ARRAY_BUFFER, self.vertexBuffer);
-    gl.enableVertexAttribArray(self.attribs.position);
-    gl.enableVertexAttribArray(self.attribs.texCoord);
-    gl.vertexAttribPointer(self.attribs.position, 2, gl.FLOAT, false, 20, 0);
-    gl.vertexAttribPointer(self.attribs.texCoord, 3, gl.FLOAT, false, 20, 8);
-
-    gl.activeTexture(gl.TEXTURE0);
-    gl.uniform1i(self.uniforms.diffuse, 0);
-    gl.bindTexture(gl.TEXTURE_2D, self.renderTarget);
-
-    gl.uniform4fv(self.uniforms.viewportOffsetScale, self.viewportOffsetScale);
-
-    // Draws both eyes
-    gl.drawElements(gl.TRIANGLES, self.indexCount, gl.UNSIGNED_SHORT, 0);
-
-    if (self.cardboardUI) {
-      self.cardboardUI.renderNoState();
-    }
-
-    // Bind the fake default framebuffer again
-    self.realBindFramebuffer.call(self.gl, gl.FRAMEBUFFER, self.framebuffer);
-
-    // If preserveDrawingBuffer == false clear the framebuffer
-    if (!self.ctxAttribs.preserveDrawingBuffer) {
-      self.realClearColor.call(gl, 0, 0, 0, 0);
-      gl.clear(gl.COLOR_BUFFER_BIT);
-    }
-
-    if (!window.WebVRConfig.DIRTY_SUBMIT_FRAME_BINDINGS) {
-      self.realBindFramebuffer.call(gl, gl.FRAMEBUFFER, self.lastBoundFramebuffer);
-    }
-
-    // Restore state
-    if (self.cullFace) { self.realEnable.call(gl, gl.CULL_FACE); }
-    if (self.depthTest) { self.realEnable.call(gl, gl.DEPTH_TEST); }
-    if (self.blend) { self.realEnable.call(gl, gl.BLEND); }
-    if (self.scissorTest) { self.realEnable.call(gl, gl.SCISSOR_TEST); }
-    if (self.stencilTest) { self.realEnable.call(gl, gl.STENCIL_TEST); }
-
-    self.realColorMask.apply(gl, self.colorMask);
-    self.realViewport.apply(gl, self.viewport);
-    if (self.ctxAttribs.alpha || !self.ctxAttribs.preserveDrawingBuffer) {
-      self.realClearColor.apply(gl, self.clearColor);
-    }
-  });
-
-  // Workaround for the fact that Safari doesn't allow us to patch the canvas
-  // width and height correctly. After each submit frame check to see what the
-  // real backbuffer size has been set to and resize the fake backbuffer size
-  // to match.
-  if (Util.isIOS()) {
-    var canvas = gl.canvas;
-    if (canvas.width != self.bufferWidth || canvas.height != self.bufferHeight) {
-      self.bufferWidth = canvas.width;
-      self.bufferHeight = canvas.height;
-      self.onResize();
-    }
-  }
-};
-
-/**
- * Call when the deviceInfo has changed. At this point we need
- * to re-calculate the distortion mesh.
- */
-CardboardDistorter.prototype.updateDeviceInfo = function(deviceInfo) {
-  var gl = this.gl;
-  var self = this;
-
-  var glState = [gl.ARRAY_BUFFER_BINDING, gl.ELEMENT_ARRAY_BUFFER_BINDING];
-  WGLUPreserveGLState(gl, glState, function(gl) {
-    var vertices = self.computeMeshVertices_(self.meshWidth, self.meshHeight, deviceInfo);
-    gl.bindBuffer(gl.ARRAY_BUFFER, self.vertexBuffer);
-    gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);
-
-    // Indices don't change based on device parameters, so only compute once.
-    if (!self.indexCount) {
-      var indices = self.computeMeshIndices_(self.meshWidth, self.meshHeight);
-      gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, self.indexBuffer);
-      gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW);
-      self.indexCount = indices.length;
-    }
-  });
-};
-
-/**
- * Build the distortion mesh vertices.
- * Based on code from the Unity cardboard plugin.
- */
-CardboardDistorter.prototype.computeMeshVertices_ = function(width, height, deviceInfo) {
-  var vertices = new Float32Array(2 * width * height * 5);
-
-  var lensFrustum = deviceInfo.getLeftEyeVisibleTanAngles();
-  var noLensFrustum = deviceInfo.getLeftEyeNoLensTanAngles();
-  var viewport = deviceInfo.getLeftEyeVisibleScreenRect(noLensFrustum);
-  var vidx = 0;
-  var iidx = 0;
-  for (var e = 0; e < 2; e++) {
-    for (var j = 0; j < height; j++) {
-      for (var i = 0; i < width; i++, vidx++) {
-        var u = i / (width - 1);
-        var v = j / (height - 1);
-
-        // Grid points regularly spaced in StreoScreen, and barrel distorted in
-        // the mesh.
-        var s = u;
-        var t = v;
-        var x = Util.lerp(lensFrustum[0], lensFrustum[2], u);
-        var y = Util.lerp(lensFrustum[3], lensFrustum[1], v);
-        var d = Math.sqrt(x * x + y * y);
-        var r = deviceInfo.distortion.distortInverse(d);
-        var p = x * r / d;
-        var q = y * r / d;
-        u = (p - noLensFrustum[0]) / (noLensFrustum[2] - noLensFrustum[0]);
-        v = (q - noLensFrustum[3]) / (noLensFrustum[1] - noLensFrustum[3]);
-
-        // Convert u,v to mesh screen coordinates.
-        var aspect = deviceInfo.device.widthMeters / deviceInfo.device.heightMeters;
-
-        // FIXME: The original Unity plugin multiplied U by the aspect ratio
-        // and didn't multiply either value by 2, but that seems to get it
-        // really close to correct looking for me. I hate this kind of "Don't
-        // know why it works" code though, and wold love a more logical
-        // explanation of what needs to happen here.
-        u = (viewport.x + u * viewport.width - 0.5) * 2.0; //* aspect;
-        v = (viewport.y + v * viewport.height - 0.5) * 2.0;
-
-        vertices[(vidx * 5) + 0] = u; // position.x
-        vertices[(vidx * 5) + 1] = v; // position.y
-        vertices[(vidx * 5) + 2] = s; // texCoord.x
-        vertices[(vidx * 5) + 3] = t; // texCoord.y
-        vertices[(vidx * 5) + 4] = e; // texCoord.z (viewport index)
-      }
-    }
-    var w = lensFrustum[2] - lensFrustum[0];
-    lensFrustum[0] = -(w + lensFrustum[0]);
-    lensFrustum[2] = w - lensFrustum[2];
-    w = noLensFrustum[2] - noLensFrustum[0];
-    noLensFrustum[0] = -(w + noLensFrustum[0]);
-    noLensFrustum[2] = w - noLensFrustum[2];
-    viewport.x = 1 - (viewport.x + viewport.width);
-  }
-  return vertices;
-}
-
-/**
- * Build the distortion mesh indices.
- * Based on code from the Unity cardboard plugin.
- */
-CardboardDistorter.prototype.computeMeshIndices_ = function(width, height) {
-  var indices = new Uint16Array(2 * (width - 1) * (height - 1) * 6);
-  var halfwidth = width / 2;
-  var halfheight = height / 2;
-  var vidx = 0;
-  var iidx = 0;
-  for (var e = 0; e < 2; e++) {
-    for (var j = 0; j < height; j++) {
-      for (var i = 0; i < width; i++, vidx++) {
-        if (i == 0 || j == 0)
-          continue;
-        // Build a quad.  Lower right and upper left quadrants have quads with
-        // the triangle diagonal flipped to get the vignette to interpolate
-        // correctly.
-        if ((i <= halfwidth) == (j <= halfheight)) {
-          // Quad diagonal lower left to upper right.
-          indices[iidx++] = vidx;
-          indices[iidx++] = vidx - width - 1;
-          indices[iidx++] = vidx - width;
-          indices[iidx++] = vidx - width - 1;
-          indices[iidx++] = vidx;
-          indices[iidx++] = vidx - 1;
-        } else {
-          // Quad diagonal upper left to lower right.
-          indices[iidx++] = vidx - 1;
-          indices[iidx++] = vidx - width;
-          indices[iidx++] = vidx;
-          indices[iidx++] = vidx - width;
-          indices[iidx++] = vidx - 1;
-          indices[iidx++] = vidx - width - 1;
-        }
-      }
-    }
-  }
-  return indices;
-};
-
-CardboardDistorter.prototype.getOwnPropertyDescriptor_ = function(proto, attrName) {
-  var descriptor = Object.getOwnPropertyDescriptor(proto, attrName);
-  // In some cases (ahem... Safari), the descriptor returns undefined get and
-  // set fields. In this case, we need to create a synthetic property
-  // descriptor. This works around some of the issues in
-  // https://github.com/borismus/webvr-polyfill/issues/46
-  if (descriptor.get === undefined || descriptor.set === undefined) {
-    descriptor.configurable = true;
-    descriptor.enumerable = true;
-    descriptor.get = function() {
-      return this.getAttribute(attrName);
-    };
-    descriptor.set = function(val) {
-      this.setAttribute(attrName, val);
-    };
-  }
-  return descriptor;
-};
-
-module.exports = CardboardDistorter;
-
-},{"./cardboard-ui.js":49,"./deps/wglu-preserve-state.js":51,"./util.js":67}],49:[function(_dereq_,module,exports){
-/*
- * Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = _dereq_('./util.js');
-var WGLUPreserveGLState = _dereq_('./deps/wglu-preserve-state.js');
-
-var uiVS = [
-  'attribute vec2 position;',
-
-  'uniform mat4 projectionMat;',
-
-  'void main() {',
-  '  gl_Position = projectionMat * vec4( position, -1.0, 1.0 );',
-  '}',
-].join('\n');
-
-var uiFS = [
-  'precision mediump float;',
-
-  'uniform vec4 color;',
-
-  'void main() {',
-  '  gl_FragColor = color;',
-  '}',
-].join('\n');
-
-var DEG2RAD = Math.PI/180.0;
-
-// The gear has 6 identical sections, each spanning 60 degrees.
-var kAnglePerGearSection = 60;
-
-// Half-angle of the span of the outer rim.
-var kOuterRimEndAngle = 12;
-
-// Angle between the middle of the outer rim and the start of the inner rim.
-var kInnerRimBeginAngle = 20;
-
-// Distance from center to outer rim, normalized so that the entire model
-// fits in a [-1, 1] x [-1, 1] square.
-var kOuterRadius = 1;
-
-// Distance from center to depressed rim, in model units.
-var kMiddleRadius = 0.75;
-
-// Radius of the inner hollow circle, in model units.
-var kInnerRadius = 0.3125;
-
-// Center line thickness in DP.
-var kCenterLineThicknessDp = 4;
-
-// Button width in DP.
-var kButtonWidthDp = 28;
-
-// Factor to scale the touch area that responds to the touch.
-var kTouchSlopFactor = 1.5;
-
-var Angles = [
-  0, kOuterRimEndAngle, kInnerRimBeginAngle,
-  kAnglePerGearSection - kInnerRimBeginAngle,
-  kAnglePerGearSection - kOuterRimEndAngle
-];
-
-/**
- * Renders the alignment line and "options" gear. It is assumed that the canvas
- * this is rendered into covers the entire screen (or close to it.)
- */
-function CardboardUI(gl) {
-  this.gl = gl;
-
-  this.attribs = {
-    position: 0
-  };
-  this.program = Util.linkProgram(gl, uiVS, uiFS, this.attribs);
-  this.uniforms = Util.getProgramUniforms(gl, this.program);
-
-  this.vertexBuffer = gl.createBuffer();
-  this.gearOffset = 0;
-  this.gearVertexCount = 0;
-  this.arrowOffset = 0;
-  this.arrowVertexCount = 0;
-
-  this.projMat = new Float32Array(16);
-
-  this.listener = null;
-
-  this.onResize();
-};
-
-/**
- * Tears down all the resources created by the UI renderer.
- */
-CardboardUI.prototype.destroy = function() {
-  var gl = this.gl;
-
-  if (this.listener) {
-    gl.canvas.removeEventListener('click', this.listener, false);
-  }
-
-  gl.deleteProgram(this.program);
-  gl.deleteBuffer(this.vertexBuffer);
-};
-
-/**
- * Adds a listener to clicks on the gear and back icons
- */
-CardboardUI.prototype.listen = function(optionsCallback, backCallback) {
-  var canvas = this.gl.canvas;
-  this.listener = function(event) {
-    var midline = canvas.clientWidth / 2;
-    var buttonSize = kButtonWidthDp * kTouchSlopFactor;
-    // Check to see if the user clicked on (or around) the gear icon
-    if (event.clientX > midline - buttonSize &&
-        event.clientX < midline + buttonSize &&
-        event.clientY > canvas.clientHeight - buttonSize) {
-      optionsCallback(event);
-    }
-    // Check to see if the user clicked on (or around) the back icon
-    else if (event.clientX < buttonSize && event.clientY < buttonSize) {
-      backCallback(event);
-    }
-  };
-  canvas.addEventListener('click', this.listener, false);
-};
-
-/**
- * Builds the UI mesh.
- */
-CardboardUI.prototype.onResize = function() {
-  var gl = this.gl;
-  var self = this;
-
-  var glState = [
-    gl.ARRAY_BUFFER_BINDING
-  ];
-
-  WGLUPreserveGLState(gl, glState, function(gl) {
-    var vertices = [];
-
-    var midline = gl.drawingBufferWidth / 2;
-
-    // The gl buffer size will likely be smaller than the physical pixel count.
-    // So we need to scale the dps down based on the actual buffer size vs physical pixel count.
-    // This will properly size the ui elements no matter what the gl buffer resolution is
-    var physicalPixels = Math.max(screen.width, screen.height) * window.devicePixelRatio;
-    var scalingRatio = gl.drawingBufferWidth / physicalPixels;
-    var dps = scalingRatio *  window.devicePixelRatio;
-
-    var lineWidth = kCenterLineThicknessDp * dps / 2;
-    var buttonSize = kButtonWidthDp * kTouchSlopFactor * dps;
-    var buttonScale = kButtonWidthDp * dps / 2;
-    var buttonBorder = ((kButtonWidthDp * kTouchSlopFactor) - kButtonWidthDp) * dps;
-
-    // Build centerline
-    vertices.push(midline - lineWidth, buttonSize);
-    vertices.push(midline - lineWidth, gl.drawingBufferHeight);
-    vertices.push(midline + lineWidth, buttonSize);
-    vertices.push(midline + lineWidth, gl.drawingBufferHeight);
-
-    // Build gear
-    self.gearOffset = (vertices.length / 2);
-
-    function addGearSegment(theta, r) {
-      var angle = (90 - theta) * DEG2RAD;
-      var x = Math.cos(angle);
-      var y = Math.sin(angle);
-      vertices.push(kInnerRadius * x * buttonScale + midline, kInnerRadius * y * buttonScale + buttonScale);
-      vertices.push(r * x * buttonScale + midline, r * y * buttonScale + buttonScale);
-    }
-
-    for (var i = 0; i <= 6; i++) {
-      var segmentTheta = i * kAnglePerGearSection;
-
-      addGearSegment(segmentTheta, kOuterRadius);
-      addGearSegment(segmentTheta + kOuterRimEndAngle, kOuterRadius);
-      addGearSegment(segmentTheta + kInnerRimBeginAngle, kMiddleRadius);
-      addGearSegment(segmentTheta + (kAnglePerGearSection - kInnerRimBeginAngle), kMiddleRadius);
-      addGearSegment(segmentTheta + (kAnglePerGearSection - kOuterRimEndAngle), kOuterRadius);
-    }
-
-    self.gearVertexCount = (vertices.length / 2) - self.gearOffset;
-
-    // Build back arrow
-    self.arrowOffset = (vertices.length / 2);
-
-    function addArrowVertex(x, y) {
-      vertices.push(buttonBorder + x, gl.drawingBufferHeight - buttonBorder - y);
-    }
-
-    var angledLineWidth = lineWidth / Math.sin(45 * DEG2RAD);
-
-    addArrowVertex(0, buttonScale);
-    addArrowVertex(buttonScale, 0);
-    addArrowVertex(buttonScale + angledLineWidth, angledLineWidth);
-    addArrowVertex(angledLineWidth, buttonScale + angledLineWidth);
-
-    addArrowVertex(angledLineWidth, buttonScale - angledLineWidth);
-    addArrowVertex(0, buttonScale);
-    addArrowVertex(buttonScale, buttonScale * 2);
-    addArrowVertex(buttonScale + angledLineWidth, (buttonScale * 2) - angledLineWidth);
-
-    addArrowVertex(angledLineWidth, buttonScale - angledLineWidth);
-    addArrowVertex(0, buttonScale);
-
-    addArrowVertex(angledLineWidth, buttonScale - lineWidth);
-    addArrowVertex(kButtonWidthDp * dps, buttonScale - lineWidth);
-    addArrowVertex(angledLineWidth, buttonScale + lineWidth);
-    addArrowVertex(kButtonWidthDp * dps, buttonScale + lineWidth);
-
-    self.arrowVertexCount = (vertices.length / 2) - self.arrowOffset;
-
-    // Buffer data
-    gl.bindBuffer(gl.ARRAY_BUFFER, self.vertexBuffer);
-    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertices), gl.STATIC_DRAW);
-  });
-};
-
-/**
- * Performs distortion pass on the injected backbuffer, rendering it to the real
- * backbuffer.
- */
-CardboardUI.prototype.render = function() {
-  var gl = this.gl;
-  var self = this;
-
-  var glState = [
-    gl.CULL_FACE,
-    gl.DEPTH_TEST,
-    gl.BLEND,
-    gl.SCISSOR_TEST,
-    gl.STENCIL_TEST,
-    gl.COLOR_WRITEMASK,
-    gl.VIEWPORT,
-
-    gl.CURRENT_PROGRAM,
-    gl.ARRAY_BUFFER_BINDING
-  ];
-
-  WGLUPreserveGLState(gl, glState, function(gl) {
-    // Make sure the GL state is in a good place
-    gl.disable(gl.CULL_FACE);
-    gl.disable(gl.DEPTH_TEST);
-    gl.disable(gl.BLEND);
-    gl.disable(gl.SCISSOR_TEST);
-    gl.disable(gl.STENCIL_TEST);
-    gl.colorMask(true, true, true, true);
-    gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-
-    self.renderNoState();
-  });
-};
-
-CardboardUI.prototype.renderNoState = function() {
-  var gl = this.gl;
-
-  // Bind distortion program and mesh
-  gl.useProgram(this.program);
-
-  gl.bindBuffer(gl.ARRAY_BUFFER, this.vertexBuffer);
-  gl.enableVertexAttribArray(this.attribs.position);
-  gl.vertexAttribPointer(this.attribs.position, 2, gl.FLOAT, false, 8, 0);
-
-  gl.uniform4f(this.uniforms.color, 1.0, 1.0, 1.0, 1.0);
-
-  Util.orthoMatrix(this.projMat, 0, gl.drawingBufferWidth, 0, gl.drawingBufferHeight, 0.1, 1024.0);
-  gl.uniformMatrix4fv(this.uniforms.projectionMat, false, this.projMat);
-
-  // Draws UI element
-  gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
-  gl.drawArrays(gl.TRIANGLE_STRIP, this.gearOffset, this.gearVertexCount);
-  gl.drawArrays(gl.TRIANGLE_STRIP, this.arrowOffset, this.arrowVertexCount);
-};
-
-module.exports = CardboardUI;
-
-},{"./deps/wglu-preserve-state.js":51,"./util.js":67}],50:[function(_dereq_,module,exports){
-/*
- * Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var CardboardDistorter = _dereq_('./cardboard-distorter.js');
-var CardboardUI = _dereq_('./cardboard-ui.js');
-var DeviceInfo = _dereq_('./device-info.js');
-var Dpdb = _dereq_('./dpdb/dpdb.js');
-var FusionPoseSensor = _dereq_('./sensor-fusion/fusion-pose-sensor.js');
-var RotateInstructions = _dereq_('./rotate-instructions.js');
-var ViewerSelector = _dereq_('./viewer-selector.js');
-var VRDisplay = _dereq_('./base.js').VRDisplay;
-var Util = _dereq_('./util.js');
-
-var Eye = {
-  LEFT: 'left',
-  RIGHT: 'right'
-};
-
-/**
- * VRDisplay based on mobile device parameters and DeviceMotion APIs.
- */
-function CardboardVRDisplay() {
-  this.displayName = 'Cardboard VRDisplay (webvr-polyfill)';
-
-  this.capabilities.hasOrientation = true;
-  this.capabilities.canPresent = true;
-
-  // "Private" members.
-  this.bufferScale_ = window.WebVRConfig.BUFFER_SCALE;
-  this.poseSensor_ = new FusionPoseSensor();
-  this.distorter_ = null;
-  this.cardboardUI_ = null;
-
-  this.dpdb_ = new Dpdb(true, this.onDeviceParamsUpdated_.bind(this));
-  this.deviceInfo_ = new DeviceInfo(this.dpdb_.getDeviceParams());
-
-  this.viewerSelector_ = new ViewerSelector();
-  this.viewerSelector_.onChange(this.onViewerChanged_.bind(this));
-
-  // Set the correct initial viewer.
-  this.deviceInfo_.setViewer(this.viewerSelector_.getCurrentViewer());
-
-  if (!window.WebVRConfig.ROTATE_INSTRUCTIONS_DISABLED) {
-    this.rotateInstructions_ = new RotateInstructions();
-  }
-
-  if (Util.isIOS()) {
-    // Listen for resize events to workaround this awful Safari bug.
-    window.addEventListener('resize', this.onResize_.bind(this));
-  }
-}
-CardboardVRDisplay.prototype = new VRDisplay();
-
-CardboardVRDisplay.prototype.getImmediatePose = function() {
-  return {
-    position: this.poseSensor_.getPosition(),
-    orientation: this.poseSensor_.getOrientation(),
-    linearVelocity: null,
-    linearAcceleration: null,
-    angularVelocity: null,
-    angularAcceleration: null
-  };
-};
-
-CardboardVRDisplay.prototype.resetPose = function() {
-  this.poseSensor_.resetPose();
-};
-
-CardboardVRDisplay.prototype.getEyeParameters = function(whichEye) {
-  var offset = [this.deviceInfo_.viewer.interLensDistance * 0.5, 0.0, 0.0];
-  var fieldOfView;
-
-  // TODO: FoV can be a little expensive to compute. Cache when device params change.
-  if (whichEye == Eye.LEFT) {
-    offset[0] *= -1.0;
-    fieldOfView = this.deviceInfo_.getFieldOfViewLeftEye();
-  } else if (whichEye == Eye.RIGHT) {
-    fieldOfView = this.deviceInfo_.getFieldOfViewRightEye();
-  } else {
-    console.error('Invalid eye provided: %s', whichEye);
-    return null;
-  }
-
-  return {
-    fieldOfView: fieldOfView,
-    offset: offset,
-    // TODO: Should be able to provide better values than these.
-    renderWidth: this.deviceInfo_.device.width * 0.5 * this.bufferScale_,
-    renderHeight: this.deviceInfo_.device.height * this.bufferScale_,
-  };
-};
-
-CardboardVRDisplay.prototype.onDeviceParamsUpdated_ = function(newParams) {
-  if (Util.isDebug()) {
-    console.log('DPDB reported that device params were updated.');
-  }
-  this.deviceInfo_.updateDeviceParams(newParams);
-
-  if (this.distorter_) {
-    this.distorter_.updateDeviceInfo(this.deviceInfo_);
-  }
-};
-
-CardboardVRDisplay.prototype.updateBounds_ = function () {
-  if (this.layer_ && this.distorter_ && (this.layer_.leftBounds || this.layer_.rightBounds)) {
-    this.distorter_.setTextureBounds(this.layer_.leftBounds, this.layer_.rightBounds);
-  }
-};
-
-CardboardVRDisplay.prototype.beginPresent_ = function() {
-  var gl = this.layer_.source.getContext('webgl');
-  if (!gl)
-    gl = this.layer_.source.getContext('experimental-webgl');
-  if (!gl)
-    gl = this.layer_.source.getContext('webgl2');
-
-  if (!gl)
-    return; // Can't do distortion without a WebGL context.
-
-  // Provides a way to opt out of distortion
-  if (this.layer_.predistorted) {
-    if (!window.WebVRConfig.CARDBOARD_UI_DISABLED) {
-      gl.canvas.width = Util.getScreenWidth() * this.bufferScale_;
-      gl.canvas.height = Util.getScreenHeight() * this.bufferScale_;
-      this.cardboardUI_ = new CardboardUI(gl);
-    }
-  } else {
-    // Create a new distorter for the target context
-    this.distorter_ = new CardboardDistorter(gl);
-    this.distorter_.updateDeviceInfo(this.deviceInfo_);
-    this.cardboardUI_ = this.distorter_.cardboardUI;
-  }
-
-  if (this.cardboardUI_) {
-    this.cardboardUI_.listen(function(e) {
-      // Options clicked.
-      this.viewerSelector_.show(this.layer_.source.parentElement);
-      e.stopPropagation();
-      e.preventDefault();
-    }.bind(this), function(e) {
-      // Back clicked.
-      this.exitPresent();
-      e.stopPropagation();
-      e.preventDefault();
-    }.bind(this));
-  }
-
-  if (this.rotateInstructions_) {
-    if (Util.isLandscapeMode() && Util.isMobile()) {
-      // In landscape mode, temporarily show the "put into Cardboard"
-      // interstitial. Otherwise, do the default thing.
-      this.rotateInstructions_.showTemporarily(3000, this.layer_.source.parentElement);
-    } else {
-      this.rotateInstructions_.update();
-    }
-  }
-
-  // Listen for orientation change events in order to show interstitial.
-  this.orientationHandler = this.onOrientationChange_.bind(this);
-  window.addEventListener('orientationchange', this.orientationHandler);
-
-  // Listen for present display change events in order to update distorter dimensions
-  this.vrdisplaypresentchangeHandler = this.updateBounds_.bind(this);
-  window.addEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);
-
-  // Fire this event initially, to give geometry-distortion clients the chance
-  // to do something custom.
-  this.fireVRDisplayDeviceParamsChange_();
-};
-
-CardboardVRDisplay.prototype.endPresent_ = function() {
-  if (this.distorter_) {
-    this.distorter_.destroy();
-    this.distorter_ = null;
-  }
-  if (this.cardboardUI_) {
-    this.cardboardUI_.destroy();
-    this.cardboardUI_ = null;
-  }
-
-  if (this.rotateInstructions_) {
-    this.rotateInstructions_.hide();
-  }
-  this.viewerSelector_.hide();
-
-  window.removeEventListener('orientationchange', this.orientationHandler);
-  window.removeEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);
-};
-
-CardboardVRDisplay.prototype.submitFrame = function(pose) {
-  if (this.distorter_) {
-    this.updateBounds_();
-    this.distorter_.submitFrame();
-  } else if (this.cardboardUI_ && this.layer_) {
-    // Hack for predistorted: true.
-    var canvas = this.layer_.source.getContext('webgl').canvas;
-    if (canvas.width != this.lastWidth || canvas.height != this.lastHeight) {
-      this.cardboardUI_.onResize();
-    }
-    this.lastWidth = canvas.width;
-    this.lastHeight = canvas.height;
-
-    // Render the Cardboard UI.
-    this.cardboardUI_.render();
-  }
-};
-
-CardboardVRDisplay.prototype.onOrientationChange_ = function(e) {
-  // Hide the viewer selector.
-  this.viewerSelector_.hide();
-
-  // Update the rotate instructions.
-  if (this.rotateInstructions_) {
-    this.rotateInstructions_.update();
-  }
-
-  this.onResize_();
-};
-
-CardboardVRDisplay.prototype.onResize_ = function(e) {
-  if (this.layer_) {
-    var gl = this.layer_.source.getContext('webgl');
-    // Size the CSS canvas.
-    // Added padding on right and bottom because iPhone 5 will not
-    // hide the URL bar unless content is bigger than the screen.
-    // This will not be visible as long as the container element (e.g. body)
-    // is set to 'overflow: hidden'.
-    // Additionally, 'box-sizing: content-box' ensures renderWidth = width + padding.
-    // This is required when 'box-sizing: border-box' is used elsewhere in the page.
-    var cssProperties = [
-      'position: absolute',
-      'top: 0',
-      'left: 0',
-      // Use vw/vh to handle implicitly devicePixelRatio; issue #282
-      'width: 100vw',
-      'height: 100vh',
-      'border: 0',
-      'margin: 0',
-      // Set no padding in the case where you don't have control over
-      // the content injection, like in Unity WebGL; issue #282
-      'padding: 0px',
-      'box-sizing: content-box',
-    ];
-    gl.canvas.setAttribute('style', cssProperties.join('; ') + ';');
-
-    Util.safariCssSizeWorkaround(gl.canvas);
-  }
-};
-
-CardboardVRDisplay.prototype.onViewerChanged_ = function(viewer) {
-  this.deviceInfo_.setViewer(viewer);
-
-  if (this.distorter_) {
-    // Update the distortion appropriately.
-    this.distorter_.updateDeviceInfo(this.deviceInfo_);
-  }
-
-  // Fire a new event containing viewer and device parameters for clients that
-  // want to implement their own geometry-based distortion.
-  this.fireVRDisplayDeviceParamsChange_();
-};
-
-CardboardVRDisplay.prototype.fireVRDisplayDeviceParamsChange_ = function() {
-  var event = new CustomEvent('vrdisplaydeviceparamschange', {
-    detail: {
-      vrdisplay: this,
-      deviceInfo: this.deviceInfo_,
-    }
-  });
-  window.dispatchEvent(event);
-};
-
-module.exports = CardboardVRDisplay;
-
-},{"./base.js":47,"./cardboard-distorter.js":48,"./cardboard-ui.js":49,"./device-info.js":52,"./dpdb/dpdb.js":56,"./rotate-instructions.js":61,"./sensor-fusion/fusion-pose-sensor.js":63,"./util.js":67,"./viewer-selector.js":68}],51:[function(_dereq_,module,exports){
-/**
- * Copyright (c) 2016, Brandon Jones.
- * https://github.com/toji/webgl-utils/blob/master/src/wglu-preserve-state.js
- * LICENSE: https://github.com/toji/webgl-utils/blob/master/LICENSE.md
- */
-
-function WGLUPreserveGLState(gl, bindings, callback) {
-  if (!bindings) {
-    callback(gl);
-    return;
-  }
-
-  var boundValues = [];
-
-  var activeTexture = null;
-  for (var i = 0; i < bindings.length; ++i) {
-    var binding = bindings[i];
-    switch (binding) {
-      case gl.TEXTURE_BINDING_2D:
-      case gl.TEXTURE_BINDING_CUBE_MAP:
-        var textureUnit = bindings[++i];
-        if (textureUnit < gl.TEXTURE0 || textureUnit > gl.TEXTURE31) {
-          console.error("TEXTURE_BINDING_2D or TEXTURE_BINDING_CUBE_MAP must be followed by a valid texture unit");
-          boundValues.push(null, null);
-          break;
-        }
-        if (!activeTexture) {
-          activeTexture = gl.getParameter(gl.ACTIVE_TEXTURE);
-        }
-        gl.activeTexture(textureUnit);
-        boundValues.push(gl.getParameter(binding), null);
-        break;
-      case gl.ACTIVE_TEXTURE:
-        activeTexture = gl.getParameter(gl.ACTIVE_TEXTURE);
-        boundValues.push(null);
-        break;
-      default:
-        boundValues.push(gl.getParameter(binding));
-        break;
-    }
-  }
-
-  callback(gl);
-
-  for (var i = 0; i < bindings.length; ++i) {
-    var binding = bindings[i];
-    var boundValue = boundValues[i];
-    switch (binding) {
-      case gl.ACTIVE_TEXTURE:
-        break; // Ignore this binding, since we special-case it to happen last.
-      case gl.ARRAY_BUFFER_BINDING:
-        gl.bindBuffer(gl.ARRAY_BUFFER, boundValue);
-        break;
-      case gl.COLOR_CLEAR_VALUE:
-        gl.clearColor(boundValue[0], boundValue[1], boundValue[2], boundValue[3]);
-        break;
-      case gl.COLOR_WRITEMASK:
-        gl.colorMask(boundValue[0], boundValue[1], boundValue[2], boundValue[3]);
-        break;
-      case gl.CURRENT_PROGRAM:
-        gl.useProgram(boundValue);
-        break;
-      case gl.ELEMENT_ARRAY_BUFFER_BINDING:
-        gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, boundValue);
-        break;
-      case gl.FRAMEBUFFER_BINDING:
-        gl.bindFramebuffer(gl.FRAMEBUFFER, boundValue);
-        break;
-      case gl.RENDERBUFFER_BINDING:
-        gl.bindRenderbuffer(gl.RENDERBUFFER, boundValue);
-        break;
-      case gl.TEXTURE_BINDING_2D:
-        var textureUnit = bindings[++i];
-        if (textureUnit < gl.TEXTURE0 || textureUnit > gl.TEXTURE31)
-          break;
-        gl.activeTexture(textureUnit);
-        gl.bindTexture(gl.TEXTURE_2D, boundValue);
-        break;
-      case gl.TEXTURE_BINDING_CUBE_MAP:
-        var textureUnit = bindings[++i];
-        if (textureUnit < gl.TEXTURE0 || textureUnit > gl.TEXTURE31)
-          break;
-        gl.activeTexture(textureUnit);
-        gl.bindTexture(gl.TEXTURE_CUBE_MAP, boundValue);
-        break;
-      case gl.VIEWPORT:
-        gl.viewport(boundValue[0], boundValue[1], boundValue[2], boundValue[3]);
-        break;
-      case gl.BLEND:
-      case gl.CULL_FACE:
-      case gl.DEPTH_TEST:
-      case gl.SCISSOR_TEST:
-      case gl.STENCIL_TEST:
-        if (boundValue) {
-          gl.enable(binding);
-        } else {
-          gl.disable(binding);
-        }
-        break;
-      default:
-        console.log("No GL restore behavior for 0x" + binding.toString(16));
-        break;
-    }
-
-    if (activeTexture) {
-      gl.activeTexture(activeTexture);
-    }
-  }
-}
-
-module.exports = WGLUPreserveGLState;
-
-},{}],52:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Distortion = _dereq_('./distortion/distortion.js');
-var MathUtil = _dereq_('./math-util.js');
-var Util = _dereq_('./util.js');
-
-function Device(params) {
-  this.width = params.width || Util.getScreenWidth();
-  this.height = params.height || Util.getScreenHeight();
-  this.widthMeters = params.widthMeters;
-  this.heightMeters = params.heightMeters;
-  this.bevelMeters = params.bevelMeters;
-}
-
-
-// Fallback Android device (based on Nexus 5 measurements) for use when
-// we can't recognize an Android device.
-var DEFAULT_ANDROID = new Device({
-  widthMeters: 0.110,
-  heightMeters: 0.062,
-  bevelMeters: 0.004
-});
-
-// Fallback iOS device (based on iPhone6) for use when
-// we can't recognize an Android device.
-var DEFAULT_IOS = new Device({
-  widthMeters: 0.1038,
-  heightMeters: 0.0584,
-  bevelMeters: 0.004
-});
-
-
-var Viewers = {
-  CardboardV1: new CardboardViewer({
-    id: 'CardboardV1',
-    label: 'Cardboard I/O 2014',
-    fov: 40,
-    interLensDistance: 0.060,
-    baselineLensDistance: 0.035,
-    screenLensDistance: 0.042,
-    distortionCoefficients: [0.441, 0.156],
-    inverseCoefficients: [-0.4410035, 0.42756155, -0.4804439, 0.5460139,
-      -0.58821183, 0.5733938, -0.48303202, 0.33299083, -0.17573841,
-      0.0651772, -0.01488963, 0.001559834]
-  }),
-  CardboardV2: new CardboardViewer({
-    id: 'CardboardV2',
-    label: 'Cardboard I/O 2015',
-    fov: 60,
-    interLensDistance: 0.064,
-    baselineLensDistance: 0.035,
-    screenLensDistance: 0.039,
-    distortionCoefficients: [0.34, 0.55],
-    inverseCoefficients: [-0.33836704, -0.18162185, 0.862655, -1.2462051,
-      1.0560602, -0.58208317, 0.21609078, -0.05444823, 0.009177956,
-      -9.904169E-4, 6.183535E-5, -1.6981803E-6]
-  })
-};
-
-
-var DEFAULT_LEFT_CENTER = {x: 0.5, y: 0.5};
-var DEFAULT_RIGHT_CENTER = {x: 0.5, y: 0.5};
-
-/**
- * Manages information about the device and the viewer.
- *
- * deviceParams indicates the parameters of the device to use (generally
- * obtained from dpdb.getDeviceParams()). Can be null to mean no device
- * params were found.
- */
-function DeviceInfo(deviceParams) {
-  this.viewer = Viewers.CardboardV2;
-  this.updateDeviceParams(deviceParams);
-  this.distortion = new Distortion(this.viewer.distortionCoefficients);
-}
-
-DeviceInfo.prototype.updateDeviceParams = function(deviceParams) {
-  this.device = this.determineDevice_(deviceParams) || this.device;
-};
-
-DeviceInfo.prototype.getDevice = function() {
-  return this.device;
-};
-
-DeviceInfo.prototype.setViewer = function(viewer) {
-  this.viewer = viewer;
-  this.distortion = new Distortion(this.viewer.distortionCoefficients);
-};
-
-DeviceInfo.prototype.determineDevice_ = function(deviceParams) {
-  if (!deviceParams) {
-    // No parameters, so use a default.
-    if (Util.isIOS()) {
-      console.warn('Using fallback iOS device measurements.');
-      return DEFAULT_IOS;
-    } else {
-      console.warn('Using fallback Android device measurements.');
-      return DEFAULT_ANDROID;
-    }
-  }
-
-  // Compute device screen dimensions based on deviceParams.
-  var METERS_PER_INCH = 0.0254;
-  var metersPerPixelX = METERS_PER_INCH / deviceParams.xdpi;
-  var metersPerPixelY = METERS_PER_INCH / deviceParams.ydpi;
-  var width = Util.getScreenWidth();
-  var height = Util.getScreenHeight();
-  return new Device({
-    widthMeters: metersPerPixelX * width,
-    heightMeters: metersPerPixelY * height,
-    bevelMeters: deviceParams.bevelMm * 0.001,
-  });
-};
-
-/**
- * Calculates field of view for the left eye.
- */
-DeviceInfo.prototype.getDistortedFieldOfViewLeftEye = function() {
-  var viewer = this.viewer;
-  var device = this.device;
-  var distortion = this.distortion;
-
-  // Device.height and device.width for device in portrait mode, so transpose.
-  var eyeToScreenDistance = viewer.screenLensDistance;
-
-  var outerDist = (device.widthMeters - viewer.interLensDistance) / 2;
-  var innerDist = viewer.interLensDistance / 2;
-  var bottomDist = viewer.baselineLensDistance - device.bevelMeters;
-  var topDist = device.heightMeters - bottomDist;
-
-  var outerAngle = MathUtil.radToDeg * Math.atan(
-      distortion.distort(outerDist / eyeToScreenDistance));
-  var innerAngle = MathUtil.radToDeg * Math.atan(
-      distortion.distort(innerDist / eyeToScreenDistance));
-  var bottomAngle = MathUtil.radToDeg * Math.atan(
-      distortion.distort(bottomDist / eyeToScreenDistance));
-  var topAngle = MathUtil.radToDeg * Math.atan(
-      distortion.distort(topDist / eyeToScreenDistance));
-
-  return {
-    leftDegrees: Math.min(outerAngle, viewer.fov),
-    rightDegrees: Math.min(innerAngle, viewer.fov),
-    downDegrees: Math.min(bottomAngle, viewer.fov),
-    upDegrees: Math.min(topAngle, viewer.fov)
-  };
-};
-
-/**
- * Calculates the tan-angles from the maximum FOV for the left eye for the
- * current device and screen parameters.
- */
-DeviceInfo.prototype.getLeftEyeVisibleTanAngles = function() {
-  var viewer = this.viewer;
-  var device = this.device;
-  var distortion = this.distortion;
-
-  // Tan-angles from the max FOV.
-  var fovLeft = Math.tan(-MathUtil.degToRad * viewer.fov);
-  var fovTop = Math.tan(MathUtil.degToRad * viewer.fov);
-  var fovRight = Math.tan(MathUtil.degToRad * viewer.fov);
-  var fovBottom = Math.tan(-MathUtil.degToRad * viewer.fov);
-  // Viewport size.
-  var halfWidth = device.widthMeters / 4;
-  var halfHeight = device.heightMeters / 2;
-  // Viewport center, measured from left lens position.
-  var verticalLensOffset = (viewer.baselineLensDistance - device.bevelMeters - halfHeight);
-  var centerX = viewer.interLensDistance / 2 - halfWidth;
-  var centerY = -verticalLensOffset;
-  var centerZ = viewer.screenLensDistance;
-  // Tan-angles of the viewport edges, as seen through the lens.
-  var screenLeft = distortion.distort((centerX - halfWidth) / centerZ);
-  var screenTop = distortion.distort((centerY + halfHeight) / centerZ);
-  var screenRight = distortion.distort((centerX + halfWidth) / centerZ);
-  var screenBottom = distortion.distort((centerY - halfHeight) / centerZ);
-  // Compare the two sets of tan-angles and take the value closer to zero on each side.
-  var result = new Float32Array(4);
-  result[0] = Math.max(fovLeft, screenLeft);
-  result[1] = Math.min(fovTop, screenTop);
-  result[2] = Math.min(fovRight, screenRight);
-  result[3] = Math.max(fovBottom, screenBottom);
-  return result;
-};
-
-/**
- * Calculates the tan-angles from the maximum FOV for the left eye for the
- * current device and screen parameters, assuming no lenses.
- */
-DeviceInfo.prototype.getLeftEyeNoLensTanAngles = function() {
-  var viewer = this.viewer;
-  var device = this.device;
-  var distortion = this.distortion;
-
-  var result = new Float32Array(4);
-  // Tan-angles from the max FOV.
-  var fovLeft = distortion.distortInverse(Math.tan(-MathUtil.degToRad * viewer.fov));
-  var fovTop = distortion.distortInverse(Math.tan(MathUtil.degToRad * viewer.fov));
-  var fovRight = distortion.distortInverse(Math.tan(MathUtil.degToRad * viewer.fov));
-  var fovBottom = distortion.distortInverse(Math.tan(-MathUtil.degToRad * viewer.fov));
-  // Viewport size.
-  var halfWidth = device.widthMeters / 4;
-  var halfHeight = device.heightMeters / 2;
-  // Viewport center, measured from left lens position.
-  var verticalLensOffset = (viewer.baselineLensDistance - device.bevelMeters - halfHeight);
-  var centerX = viewer.interLensDistance / 2 - halfWidth;
-  var centerY = -verticalLensOffset;
-  var centerZ = viewer.screenLensDistance;
-  // Tan-angles of the viewport edges, as seen through the lens.
-  var screenLeft = (centerX - halfWidth) / centerZ;
-  var screenTop = (centerY + halfHeight) / centerZ;
-  var screenRight = (centerX + halfWidth) / centerZ;
-  var screenBottom = (centerY - halfHeight) / centerZ;
-  // Compare the two sets of tan-angles and take the value closer to zero on each side.
-  result[0] = Math.max(fovLeft, screenLeft);
-  result[1] = Math.min(fovTop, screenTop);
-  result[2] = Math.min(fovRight, screenRight);
-  result[3] = Math.max(fovBottom, screenBottom);
-  return result;
-};
-
-/**
- * Calculates the screen rectangle visible from the left eye for the
- * current device and screen parameters.
- */
-DeviceInfo.prototype.getLeftEyeVisibleScreenRect = function(undistortedFrustum) {
-  var viewer = this.viewer;
-  var device = this.device;
-
-  var dist = viewer.screenLensDistance;
-  var eyeX = (device.widthMeters - viewer.interLensDistance) / 2;
-  var eyeY = viewer.baselineLensDistance - device.bevelMeters;
-  var left = (undistortedFrustum[0] * dist + eyeX) / device.widthMeters;
-  var top = (undistortedFrustum[1] * dist + eyeY) / device.heightMeters;
-  var right = (undistortedFrustum[2] * dist + eyeX) / device.widthMeters;
-  var bottom = (undistortedFrustum[3] * dist + eyeY) / device.heightMeters;
-  return {
-    x: left,
-    y: bottom,
-    width: right - left,
-    height: top - bottom
-  };
-};
-
-DeviceInfo.prototype.getFieldOfViewLeftEye = function(opt_isUndistorted) {
-  return opt_isUndistorted ? this.getUndistortedFieldOfViewLeftEye() :
-      this.getDistortedFieldOfViewLeftEye();
-};
-
-DeviceInfo.prototype.getFieldOfViewRightEye = function(opt_isUndistorted) {
-  var fov = this.getFieldOfViewLeftEye(opt_isUndistorted);
-  return {
-    leftDegrees: fov.rightDegrees,
-    rightDegrees: fov.leftDegrees,
-    upDegrees: fov.upDegrees,
-    downDegrees: fov.downDegrees
-  };
-};
-
-/**
- * Calculates undistorted field of view for the left eye.
- */
-DeviceInfo.prototype.getUndistortedFieldOfViewLeftEye = function() {
-  var p = this.getUndistortedParams_();
-
-  return {
-    leftDegrees: MathUtil.radToDeg * Math.atan(p.outerDist),
-    rightDegrees: MathUtil.radToDeg * Math.atan(p.innerDist),
-    downDegrees: MathUtil.radToDeg * Math.atan(p.bottomDist),
-    upDegrees: MathUtil.radToDeg * Math.atan(p.topDist)
-  };
-};
-
-DeviceInfo.prototype.getUndistortedViewportLeftEye = function() {
-  var p = this.getUndistortedParams_();
-  var viewer = this.viewer;
-  var device = this.device;
-
-  // Distances stored in local variables are in tan-angle units unless otherwise
-  // noted.
-  var eyeToScreenDistance = viewer.screenLensDistance;
-  var screenWidth = device.widthMeters / eyeToScreenDistance;
-  var screenHeight = device.heightMeters / eyeToScreenDistance;
-  var xPxPerTanAngle = device.width / screenWidth;
-  var yPxPerTanAngle = device.height / screenHeight;
-
-  var x = Math.round((p.eyePosX - p.outerDist) * xPxPerTanAngle);
-  var y = Math.round((p.eyePosY - p.bottomDist) * yPxPerTanAngle);
-  return {
-    x: x,
-    y: y,
-    width: Math.round((p.eyePosX + p.innerDist) * xPxPerTanAngle) - x,
-    height: Math.round((p.eyePosY + p.topDist) * yPxPerTanAngle) - y
-  };
-};
-
-DeviceInfo.prototype.getUndistortedParams_ = function() {
-  var viewer = this.viewer;
-  var device = this.device;
-  var distortion = this.distortion;
-
-  // Most of these variables in tan-angle units.
-  var eyeToScreenDistance = viewer.screenLensDistance;
-  var halfLensDistance = viewer.interLensDistance / 2 / eyeToScreenDistance;
-  var screenWidth = device.widthMeters / eyeToScreenDistance;
-  var screenHeight = device.heightMeters / eyeToScreenDistance;
-
-  var eyePosX = screenWidth / 2 - halfLensDistance;
-  var eyePosY = (viewer.baselineLensDistance - device.bevelMeters) / eyeToScreenDistance;
-
-  var maxFov = viewer.fov;
-  var viewerMax = distortion.distortInverse(Math.tan(MathUtil.degToRad * maxFov));
-  var outerDist = Math.min(eyePosX, viewerMax);
-  var innerDist = Math.min(halfLensDistance, viewerMax);
-  var bottomDist = Math.min(eyePosY, viewerMax);
-  var topDist = Math.min(screenHeight - eyePosY, viewerMax);
-
-  return {
-    outerDist: outerDist,
-    innerDist: innerDist,
-    topDist: topDist,
-    bottomDist: bottomDist,
-    eyePosX: eyePosX,
-    eyePosY: eyePosY
-  };
-};
-
-
-function CardboardViewer(params) {
-  // A machine readable ID.
-  this.id = params.id;
-  // A human readable label.
-  this.label = params.label;
-
-  // Field of view in degrees (per side).
-  this.fov = params.fov;
-
-  // Distance between lens centers in meters.
-  this.interLensDistance = params.interLensDistance;
-  // Distance between viewer baseline and lens center in meters.
-  this.baselineLensDistance = params.baselineLensDistance;
-  // Screen-to-lens distance in meters.
-  this.screenLensDistance = params.screenLensDistance;
-
-  // Distortion coefficients.
-  this.distortionCoefficients = params.distortionCoefficients;
-  // Inverse distortion coefficients.
-  // TODO: Calculate these from distortionCoefficients in the future.
-  this.inverseCoefficients = params.inverseCoefficients;
-}
-
-// Export viewer information.
-DeviceInfo.Viewers = Viewers;
-module.exports = DeviceInfo;
-
-},{"./distortion/distortion.js":54,"./math-util.js":58,"./util.js":67}],53:[function(_dereq_,module,exports){
-/*
- * Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-var VRDisplay = _dereq_('./base.js').VRDisplay;
-var HMDVRDevice = _dereq_('./base.js').HMDVRDevice;
-var PositionSensorVRDevice = _dereq_('./base.js').PositionSensorVRDevice;
-
-/**
- * Wraps a VRDisplay and exposes it as a HMDVRDevice
- */
-function VRDisplayHMDDevice(display) {
-  this.display = display;
-
-  this.hardwareUnitId = display.displayId;
-  this.deviceId = 'webvr-polyfill:HMD:' + display.displayId;
-  this.deviceName = display.displayName + ' (HMD)';
-}
-VRDisplayHMDDevice.prototype = new HMDVRDevice();
-
-VRDisplayHMDDevice.prototype.getEyeParameters = function(whichEye) {
-  var eyeParameters = this.display.getEyeParameters(whichEye);
-
-  return {
-    currentFieldOfView: eyeParameters.fieldOfView,
-    maximumFieldOfView: eyeParameters.fieldOfView,
-    minimumFieldOfView: eyeParameters.fieldOfView,
-    recommendedFieldOfView: eyeParameters.fieldOfView,
-    eyeTranslation: { x: eyeParameters.offset[0], y: eyeParameters.offset[1], z: eyeParameters.offset[2] },
-    renderRect: {
-      x: (whichEye == 'right') ? eyeParameters.renderWidth : 0,
-      y: 0,
-      width: eyeParameters.renderWidth,
-      height: eyeParameters.renderHeight
-    }
-  };
-};
-
-VRDisplayHMDDevice.prototype.setFieldOfView =
-    function(opt_fovLeft, opt_fovRight, opt_zNear, opt_zFar) {
-  // Not supported. getEyeParameters reports that the min, max, and recommended
-  // FoV is all the same, so no adjustment can be made.
-};
-
-// TODO: Need to hook requestFullscreen to see if a wrapped VRDisplay was passed
-// in as an option. If so we should prevent the default fullscreen behavior and
-// call VRDisplay.requestPresent instead.
-
-/**
- * Wraps a VRDisplay and exposes it as a PositionSensorVRDevice
- */
-function VRDisplayPositionSensorDevice(display) {
-  this.display = display;
-
-  this.hardwareUnitId = display.displayId;
-  this.deviceId = 'webvr-polyfill:PositionSensor: ' + display.displayId;
-  this.deviceName = display.displayName + ' (PositionSensor)';
-}
-VRDisplayPositionSensorDevice.prototype = new PositionSensorVRDevice();
-
-VRDisplayPositionSensorDevice.prototype.getState = function() {
-  var pose = this.display.getPose();
-  return {
-    position: pose.position ? { x: pose.position[0], y: pose.position[1], z: pose.position[2] } : null,
-    orientation: pose.orientation ? { x: pose.orientation[0], y: pose.orientation[1], z: pose.orientation[2], w: pose.orientation[3] } : null,
-    linearVelocity: null,
-    linearAcceleration: null,
-    angularVelocity: null,
-    angularAcceleration: null
-  };
-};
-
-VRDisplayPositionSensorDevice.prototype.resetState = function() {
-  return this.positionDevice.resetPose();
-};
-
-
-module.exports.VRDisplayHMDDevice = VRDisplayHMDDevice;
-module.exports.VRDisplayPositionSensorDevice = VRDisplayPositionSensorDevice;
-
-
-},{"./base.js":47}],54:[function(_dereq_,module,exports){
-/**
- * TODO(smus): Implement coefficient inversion.
- */
-function Distortion(coefficients) {
-  this.coefficients = coefficients;
-}
-
-/**
- * Calculates the inverse distortion for a radius.
- * </p><p>
- * Allows to compute the original undistorted radius from a distorted one.
- * See also getApproximateInverseDistortion() for a faster but potentially
- * less accurate method.
- *
- * @param {Number} radius Distorted radius from the lens center in tan-angle units.
- * @return {Number} The undistorted radius in tan-angle units.
- */
-Distortion.prototype.distortInverse = function(radius) {
-  // Secant method.
-  var r0 = 0;
-  var r1 = 1;
-  var dr0 = radius - this.distort(r0);
-  while (Math.abs(r1 - r0) > 0.0001 /** 0.1mm */) {
-    var dr1 = radius - this.distort(r1);
-    var r2 = r1 - dr1 * ((r1 - r0) / (dr1 - dr0));
-    r0 = r1;
-    r1 = r2;
-    dr0 = dr1;
-  }
-  return r1;
-};
-
-/**
- * Distorts a radius by its distortion factor from the center of the lenses.
- *
- * @param {Number} radius Radius from the lens center in tan-angle units.
- * @return {Number} The distorted radius in tan-angle units.
- */
-Distortion.prototype.distort = function(radius) {
-  var r2 = radius * radius;
-  var ret = 0;
-  for (var i = 0; i < this.coefficients.length; i++) {
-    ret = r2 * (ret + this.coefficients[i]);
-  }
-  return (ret + 1) * radius;
-};
-
-module.exports = Distortion;
-
-},{}],55:[function(_dereq_,module,exports){
-module.exports={
-  "format": 1,
-  "last_updated": "2017-08-27T14:39:31Z",
-  "devices": [
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "asus/*/Nexus 7/*"
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-        }
-      ],
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-        403,
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-      ],
-      "bw": 3,
-      "ac": 1000
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-        }
-      ],
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-        533
-      ],
-      "bw": 3,
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-        }
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-        }
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-        422,
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-      ],
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-        422,
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-      ],
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-    },
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-      "type": "android",
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-      ],
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-        {
-          "mdmh": "LGE/*/VS985 4G/*"
-        },
-        {
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-        }
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-        537.9,
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-      ],
-      "bw": 3,
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-        {
-          "mdmh": "LGE/*/Nexus 5/*"
-        },
-        {
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-        }
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-      "rules": [
-        {
-          "mdmh": "motorola/*/XT1092/*"
-        },
-        {
-          "ua": "XT1092"
-        }
-      ],
-      "dpi": [
-        422,
-        424.1
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "motorola/*/XT1095/*"
-        },
-        {
-          "ua": "XT1095"
-        }
-      ],
-      "dpi": [
-        422,
-        423.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "motorola/*/G4/*"
-        },
-        {
-          "ua": "Moto G (4)"
-        }
-      ],
-      "dpi": 401,
-      "bw": 4,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "OnePlus/*/A0001/*"
-        },
-        {
-          "ua": "A0001"
-        }
-      ],
-      "dpi": [
-        403.4,
-        401
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "OnePlus/*/ONE E1005/*"
-        },
-        {
-          "ua": "ONE E1005"
-        }
-      ],
-      "dpi": [
-        442.4,
-        441.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "OnePlus/*/ONE A2005/*"
-        },
-        {
-          "ua": "ONE A2005"
-        }
-      ],
-      "dpi": [
-        391.9,
-        405.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "OPPO/*/X909/*"
-        },
-        {
-          "ua": "X909"
-        }
-      ],
-      "dpi": [
-        442.4,
-        444.1
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-I9082/*"
-        },
-        {
-          "ua": "GT-I9082"
-        }
-      ],
-      "dpi": [
-        184.7,
-        185.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G360P/*"
-        },
-        {
-          "ua": "SM-G360P"
-        }
-      ],
-      "dpi": [
-        196.7,
-        205.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/Nexus S/*"
-        },
-        {
-          "ua": "Nexus S"
-        }
-      ],
-      "dpi": [
-        234.5,
-        229.8
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-I9300/*"
-        },
-        {
-          "ua": "GT-I9300"
-        }
-      ],
-      "dpi": [
-        304.8,
-        303.9
-      ],
-      "bw": 5,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-T230NU/*"
-        },
-        {
-          "ua": "SM-T230NU"
-        }
-      ],
-      "dpi": 216,
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SGH-T399/*"
-        },
-        {
-          "ua": "SGH-T399"
-        }
-      ],
-      "dpi": [
-        217.7,
-        231.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SGH-M919/*"
-        },
-        {
-          "ua": "SGH-M919"
-        }
-      ],
-      "dpi": [
-        440.8,
-        437.7
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-N9005/*"
-        },
-        {
-          "ua": "SM-N9005"
-        }
-      ],
-      "dpi": [
-        386.4,
-        387
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SAMSUNG-SM-N900A/*"
-        },
-        {
-          "ua": "SAMSUNG-SM-N900A"
-        }
-      ],
-      "dpi": [
-        386.4,
-        387.7
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-I9500/*"
-        },
-        {
-          "ua": "GT-I9500"
-        }
-      ],
-      "dpi": [
-        442.5,
-        443.3
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-I9505/*"
-        },
-        {
-          "ua": "GT-I9505"
-        }
-      ],
-      "dpi": 439.4,
-      "bw": 4,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G900F/*"
-        },
-        {
-          "ua": "SM-G900F"
-        }
-      ],
-      "dpi": [
-        415.6,
-        431.6
-      ],
-      "bw": 5,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G900M/*"
-        },
-        {
-          "ua": "SM-G900M"
-        }
-      ],
-      "dpi": [
-        415.6,
-        431.6
-      ],
-      "bw": 5,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G800F/*"
-        },
-        {
-          "ua": "SM-G800F"
-        }
-      ],
-      "dpi": 326.8,
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G906S/*"
-        },
-        {
-          "ua": "SM-G906S"
-        }
-      ],
-      "dpi": [
-        562.7,
-        572.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-I9300/*"
-        },
-        {
-          "ua": "GT-I9300"
-        }
-      ],
-      "dpi": [
-        306.7,
-        304.8
-      ],
-      "bw": 5,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-T535/*"
-        },
-        {
-          "ua": "SM-T535"
-        }
-      ],
-      "dpi": [
-        142.6,
-        136.4
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-N920C/*"
-        },
-        {
-          "ua": "SM-N920C"
-        }
-      ],
-      "dpi": [
-        515.1,
-        518.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-N920W8/*"
-        },
-        {
-          "ua": "SM-N920W8"
-        }
-      ],
-      "dpi": [
-        515.1,
-        518.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-I9300I/*"
-        },
-        {
-          "ua": "GT-I9300I"
-        }
-      ],
-      "dpi": [
-        304.8,
-        305.8
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-I9195/*"
-        },
-        {
-          "ua": "GT-I9195"
-        }
-      ],
-      "dpi": [
-        249.4,
-        256.7
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SPH-L520/*"
-        },
-        {
-          "ua": "SPH-L520"
-        }
-      ],
-      "dpi": [
-        249.4,
-        255.9
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SAMSUNG-SGH-I717/*"
-        },
-        {
-          "ua": "SAMSUNG-SGH-I717"
-        }
-      ],
-      "dpi": 285.8,
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SPH-D710/*"
-        },
-        {
-          "ua": "SPH-D710"
-        }
-      ],
-      "dpi": [
-        217.7,
-        204.2
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/GT-N7100/*"
-        },
-        {
-          "ua": "GT-N7100"
-        }
-      ],
-      "dpi": 265.1,
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SCH-I605/*"
-        },
-        {
-          "ua": "SCH-I605"
-        }
-      ],
-      "dpi": 265.1,
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/Galaxy Nexus/*"
-        },
-        {
-          "ua": "Galaxy Nexus"
-        }
-      ],
-      "dpi": [
-        315.3,
-        314.2
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-N910H/*"
-        },
-        {
-          "ua": "SM-N910H"
-        }
-      ],
-      "dpi": [
-        515.1,
-        518
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-N910C/*"
-        },
-        {
-          "ua": "SM-N910C"
-        }
-      ],
-      "dpi": [
-        515.2,
-        520.2
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G130M/*"
-        },
-        {
-          "ua": "SM-G130M"
-        }
-      ],
-      "dpi": [
-        165.9,
-        164.8
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G928I/*"
-        },
-        {
-          "ua": "SM-G928I"
-        }
-      ],
-      "dpi": [
-        515.1,
-        518.4
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G920F/*"
-        },
-        {
-          "ua": "SM-G920F"
-        }
-      ],
-      "dpi": 580.6,
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G920P/*"
-        },
-        {
-          "ua": "SM-G920P"
-        }
-      ],
-      "dpi": [
-        522.5,
-        577
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G925F/*"
-        },
-        {
-          "ua": "SM-G925F"
-        }
-      ],
-      "dpi": 580.6,
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G925V/*"
-        },
-        {
-          "ua": "SM-G925V"
-        }
-      ],
-      "dpi": [
-        522.5,
-        576.6
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G930F/*"
-        },
-        {
-          "ua": "SM-G930F"
-        }
-      ],
-      "dpi": 576.6,
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G935F/*"
-        },
-        {
-          "ua": "SM-G935F"
-        }
-      ],
-      "dpi": 533,
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G950F/*"
-        },
-        {
-          "ua": "SM-G950F"
-        }
-      ],
-      "dpi": [
-        562.707,
-        565.293
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "samsung/*/SM-G955U/*"
-        },
-        {
-          "ua": "SM-G955U"
-        }
-      ],
-      "dpi": [
-        522.514,
-        525.762
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "Sony/*/C6903/*"
-        },
-        {
-          "ua": "C6903"
-        }
-      ],
-      "dpi": [
-        442.5,
-        443.3
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "Sony/*/D6653/*"
-        },
-        {
-          "ua": "D6653"
-        }
-      ],
-      "dpi": [
-        428.6,
-        427.6
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "Sony/*/E6653/*"
-        },
-        {
-          "ua": "E6653"
-        }
-      ],
-      "dpi": [
-        428.6,
-        425.7
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "Sony/*/E6853/*"
-        },
-        {
-          "ua": "E6853"
-        }
-      ],
-      "dpi": [
-        403.4,
-        401.9
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "Sony/*/SGP321/*"
-        },
-        {
-          "ua": "SGP321"
-        }
-      ],
-      "dpi": [
-        224.7,
-        224.1
-      ],
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "TCT/*/ALCATEL ONE TOUCH Fierce/*"
-        },
-        {
-          "ua": "ALCATEL ONE TOUCH Fierce"
-        }
-      ],
-      "dpi": [
-        240,
-        247.5
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "THL/*/thl 5000/*"
-        },
-        {
-          "ua": "thl 5000"
-        }
-      ],
-      "dpi": [
-        480,
-        443.3
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "android",
-      "rules": [
-        {
-          "mdmh": "ZTE/*/ZTE Blade L2/*"
-        },
-        {
-          "ua": "ZTE Blade L2"
-        }
-      ],
-      "dpi": 240,
-      "bw": 3,
-      "ac": 500
-    },
-    {
-      "type": "ios",
-      "rules": [
-        {
-          "res": [
-            640,
-            960
-          ]
-        }
-      ],
-      "dpi": [
-        325.1,
-        328.4
-      ],
-      "bw": 4,
-      "ac": 1000
-    },
-    {
-      "type": "ios",
-      "rules": [
-        {
-          "res": [
-            640,
-            1136
-          ]
-        }
-      ],
-      "dpi": [
-        317.1,
-        320.2
-      ],
-      "bw": 3,
-      "ac": 1000
-    },
-    {
-      "type": "ios",
-      "rules": [
-        {
-          "res": [
-            750,
-            1334
-          ]
-        }
-      ],
-      "dpi": 326.4,
-      "bw": 4,
-      "ac": 1000
-    },
-    {
-      "type": "ios",
-      "rules": [
-        {
-          "res": [
-            1242,
-            2208
-          ]
-        }
-      ],
-      "dpi": [
-        453.6,
-        458.4
-      ],
-      "bw": 4,
-      "ac": 1000
-    },
-    {
-      "type": "ios",
-      "rules": [
-        {
-          "res": [
-            1125,
-            2001
-          ]
-        }
-      ],
-      "dpi": [
-        410.9,
-        415.4
-      ],
-      "bw": 4,
-      "ac": 1000
-    }
-  ]
-}
-},{}],56:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// Offline cache of the DPDB, to be used until we load the online one (and
-// as a fallback in case we can't load the online one).
-var DPDB_CACHE = _dereq_('./dpdb.json');
-var Util = _dereq_('../util.js');
-
-// Online DPDB URL.
-var ONLINE_DPDB_URL =
-  'https://dpdb.webvr.rocks/dpdb.json';
-
-/**
- * Calculates device parameters based on the DPDB (Device Parameter Database).
- * Initially, uses the cached DPDB values.
- *
- * If fetchOnline == true, then this object tries to fetch the online version
- * of the DPDB and updates the device info if a better match is found.
- * Calls the onDeviceParamsUpdated callback when there is an update to the
- * device information.
- */
-function Dpdb(fetchOnline, onDeviceParamsUpdated) {
-  // Start with the offline DPDB cache while we are loading the real one.
-  this.dpdb = DPDB_CACHE;
-
-  // Calculate device params based on the offline version of the DPDB.
-  this.recalculateDeviceParams_();
-
-  // XHR to fetch online DPDB file, if requested.
-  if (fetchOnline) {
-    // Set the callback.
-    this.onDeviceParamsUpdated = onDeviceParamsUpdated;
-
-    var xhr = new XMLHttpRequest();
-    var obj = this;
-    xhr.open('GET', ONLINE_DPDB_URL, true);
-    xhr.addEventListener('load', function() {
-      obj.loading = false;
-      if (xhr.status >= 200 && xhr.status <= 299) {
-        // Success.
-        obj.dpdb = JSON.parse(xhr.response);
-        obj.recalculateDeviceParams_();
-      } else {
-        // Error loading the DPDB.
-        console.error('Error loading online DPDB!');
-      }
-    });
-    xhr.send();
-  }
-}
-
-// Returns the current device parameters.
-Dpdb.prototype.getDeviceParams = function() {
-  return this.deviceParams;
-};
-
-// Recalculates this device's parameters based on the DPDB.
-Dpdb.prototype.recalculateDeviceParams_ = function() {
-  var newDeviceParams = this.calcDeviceParams_();
-  if (newDeviceParams) {
-    this.deviceParams = newDeviceParams;
-    // Invoke callback, if it is set.
-    if (this.onDeviceParamsUpdated) {
-      this.onDeviceParamsUpdated(this.deviceParams);
-    }
-  } else {
-    console.error('Failed to recalculate device parameters.');
-  }
-};
-
-// Returns a DeviceParams object that represents the best guess as to this
-// device's parameters. Can return null if the device does not match any
-// known devices.
-Dpdb.prototype.calcDeviceParams_ = function() {
-  var db = this.dpdb; // shorthand
-  if (!db) {
-    console.error('DPDB not available.');
-    return null;
-  }
-  if (db.format != 1) {
-    console.error('DPDB has unexpected format version.');
-    return null;
-  }
-  if (!db.devices || !db.devices.length) {
-    console.error('DPDB does not have a devices section.');
-    return null;
-  }
-
-  // Get the actual user agent and screen dimensions in pixels.
-  var userAgent = navigator.userAgent || navigator.vendor || window.opera;
-  var width = Util.getScreenWidth();
-  var height = Util.getScreenHeight();
-
-  if (!db.devices) {
-    console.error('DPDB has no devices section.');
-    return null;
-  }
-
-  for (var i = 0; i < db.devices.length; i++) {
-    var device = db.devices[i];
-    if (!device.rules) {
-      console.warn('Device[' + i + '] has no rules section.');
-      continue;
-    }
-
-    if (device.type != 'ios' && device.type != 'android') {
-      console.warn('Device[' + i + '] has invalid type.');
-      continue;
-    }
-
-    // See if this device is of the appropriate type.
-    if (Util.isIOS() != (device.type == 'ios')) continue;
-
-    // See if this device matches any of the rules:
-    var matched = false;
-    for (var j = 0; j < device.rules.length; j++) {
-      var rule = device.rules[j];
-      if (this.matchRule_(rule, userAgent, width, height)) {
-        matched = true;
-        break;
-      }
-    }
-    if (!matched) continue;
-
-    // device.dpi might be an array of [ xdpi, ydpi] or just a scalar.
-    var xdpi = device.dpi[0] || device.dpi;
-    var ydpi = device.dpi[1] || device.dpi;
-
-    return new DeviceParams({ xdpi: xdpi, ydpi: ydpi, bevelMm: device.bw });
-  }
-
-  console.warn('No DPDB device match.');
-  return null;
-};
-
-Dpdb.prototype.matchRule_ = function(rule, ua, screenWidth, screenHeight) {
-  // We can only match 'ua' and 'res' rules, not other types like 'mdmh'
-  // (which are meant for native platforms).
-  if (!rule.ua && !rule.res) return false;
-
-  // If our user agent string doesn't contain the indicated user agent string,
-  // the match fails.
-  if (rule.ua && ua.indexOf(rule.ua) < 0) return false;
-
-  // If the rule specifies screen dimensions that don't correspond to ours,
-  // the match fails.
-  if (rule.res) {
-    if (!rule.res[0] || !rule.res[1]) return false;
-    var resX = rule.res[0];
-    var resY = rule.res[1];
-    // Compare min and max so as to make the order not matter, i.e., it should
-    // be true that 640x480 == 480x640.
-    if (Math.min(screenWidth, screenHeight) != Math.min(resX, resY) ||
-        (Math.max(screenWidth, screenHeight) != Math.max(resX, resY))) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-function DeviceParams(params) {
-  this.xdpi = params.xdpi;
-  this.ydpi = params.ydpi;
-  this.bevelMm = params.bevelMm;
-}
-
-module.exports = Dpdb;
-
-},{"../util.js":67,"./dpdb.json":55}],57:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-var Util = _dereq_('./util.js');
-var WebVRPolyfill = _dereq_('./webvr-polyfill.js').WebVRPolyfill;
-
-// Initialize a WebVRConfig just in case.
-window.WebVRConfig = Util.extend({
-  // Forces availability of VR mode, even for non-mobile devices.
-  FORCE_ENABLE_VR: false,
-
-  // Complementary filter coefficient. 0 for accelerometer, 1 for gyro.
-  K_FILTER: 0.98,
-
-  // How far into the future to predict during fast motion (in seconds).
-  PREDICTION_TIME_S: 0.040,
-
-  // Flag to enable touch panner. In case you have your own touch controls.
-  TOUCH_PANNER_DISABLED: true,
-
-  // Flag to disabled the UI in VR Mode.
-  CARDBOARD_UI_DISABLED: false, // Default: false
-
-  // Flag to disable the instructions to rotate your device.
-  ROTATE_INSTRUCTIONS_DISABLED: false, // Default: false.
-
-  // Enable yaw panning only, disabling roll and pitch. This can be useful
-  // for panoramas with nothing interesting above or below.
-  YAW_ONLY: false,
-
-  // To disable keyboard and mouse controls, if you want to use your own
-  // implementation.
-  MOUSE_KEYBOARD_CONTROLS_DISABLED: false,
-
-  // Prevent the polyfill from initializing immediately. Requires the app
-  // to call InitializeWebVRPolyfill() before it can be used.
-  DEFER_INITIALIZATION: false,
-
-  // Enable the deprecated version of the API (navigator.getVRDevices).
-  ENABLE_DEPRECATED_API: false,
-
-  // Scales the recommended buffer size reported by WebVR, which can improve
-  // performance.
-  // UPDATE(2016-05-03): Setting this to 0.5 by default since 1.0 does not
-  // perform well on many mobile devices.
-  BUFFER_SCALE: 0.5,
-
-  // Allow VRDisplay.submitFrame to change gl bindings, which is more
-  // efficient if the application code will re-bind its resources on the
-  // next frame anyway. This has been seen to cause rendering glitches with
-  // THREE.js.
-  // Dirty bindings include: gl.FRAMEBUFFER_BINDING, gl.CURRENT_PROGRAM,
-  // gl.ARRAY_BUFFER_BINDING, gl.ELEMENT_ARRAY_BUFFER_BINDING,
-  // and gl.TEXTURE_BINDING_2D for texture unit 0.
-  DIRTY_SUBMIT_FRAME_BINDINGS: false,
-
-  // When set to true, this will cause a polyfilled VRDisplay to always be
-  // appended to the list returned by navigator.getVRDisplays(), even if that
-  // list includes a native VRDisplay.
-  ALWAYS_APPEND_POLYFILL_DISPLAY: false,
-
-  // There are versions of Chrome (M58-M60?) where the native WebVR API exists,
-  // and instead of returning 0 VR displays when none are detected,
-  // `navigator.getVRDisplays()`'s promise never resolves. This results
-  // in the polyfill hanging and not being able to provide fallback
-  // displays, so set a timeout in milliseconds to stop waiting for a response
-  // and just use polyfilled displays.
-  // https://bugs.chromium.org/p/chromium/issues/detail?id=727969
-  GET_VR_DISPLAYS_TIMEOUT: 1000,
-}, window.WebVRConfig);
-
-if (!window.WebVRConfig.DEFER_INITIALIZATION) {
-  new WebVRPolyfill();
-} else {
-  window.InitializeWebVRPolyfill = function() {
-    new WebVRPolyfill();
-  }
-}
-
-window.WebVRPolyfill = WebVRPolyfill;
-
-},{"./util.js":67,"./webvr-polyfill.js":70}],58:[function(_dereq_,module,exports){
-/*
- * Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var MathUtil = window.MathUtil || {};
-
-MathUtil.degToRad = Math.PI / 180;
-MathUtil.radToDeg = 180 / Math.PI;
-
-// Some minimal math functionality borrowed from THREE.Math and stripped down
-// for the purposes of this library.
-
-
-MathUtil.Vector2 = function ( x, y ) {
-  this.x = x || 0;
-  this.y = y || 0;
-};
-
-MathUtil.Vector2.prototype = {
-  constructor: MathUtil.Vector2,
-
-  set: function ( x, y ) {
-    this.x = x;
-    this.y = y;
-
-    return this;
-  },
-
-  copy: function ( v ) {
-    this.x = v.x;
-    this.y = v.y;
-
-    return this;
-  },
-
-  subVectors: function ( a, b ) {
-    this.x = a.x - b.x;
-    this.y = a.y - b.y;
-
-    return this;
-  },
-};
-
-MathUtil.Vector3 = function ( x, y, z ) {
-  this.x = x || 0;
-  this.y = y || 0;
-  this.z = z || 0;
-};
-
-MathUtil.Vector3.prototype = {
-  constructor: MathUtil.Vector3,
-
-  set: function ( x, y, z ) {
-    this.x = x;
-    this.y = y;
-    this.z = z;
-
-    return this;
-  },
-
-  copy: function ( v ) {
-    this.x = v.x;
-    this.y = v.y;
-    this.z = v.z;
-
-    return this;
-  },
-
-  length: function () {
-    return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );
-  },
-
-  normalize: function () {
-    var scalar = this.length();
-
-    if ( scalar !== 0 ) {
-      var invScalar = 1 / scalar;
-
-      this.multiplyScalar(invScalar);
-    } else {
-      this.x = 0;
-      this.y = 0;
-      this.z = 0;
-    }
-
-    return this;
-  },
-
-  multiplyScalar: function ( scalar ) {
-    this.x *= scalar;
-    this.y *= scalar;
-    this.z *= scalar;
-  },
-
-  applyQuaternion: function ( q ) {
-    var x = this.x;
-    var y = this.y;
-    var z = this.z;
-
-    var qx = q.x;
-    var qy = q.y;
-    var qz = q.z;
-    var qw = q.w;
-
-    // calculate quat * vector
-    var ix =  qw * x + qy * z - qz * y;
-    var iy =  qw * y + qz * x - qx * z;
-    var iz =  qw * z + qx * y - qy * x;
-    var iw = - qx * x - qy * y - qz * z;
-
-    // calculate result * inverse quat
-    this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
-    this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
-    this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;
-
-    return this;
-  },
-
-  dot: function ( v ) {
-    return this.x * v.x + this.y * v.y + this.z * v.z;
-  },
-
-  crossVectors: function ( a, b ) {
-    var ax = a.x, ay = a.y, az = a.z;
-    var bx = b.x, by = b.y, bz = b.z;
-
-    this.x = ay * bz - az * by;
-    this.y = az * bx - ax * bz;
-    this.z = ax * by - ay * bx;
-
-    return this;
-  },
-};
-
-MathUtil.Quaternion = function ( x, y, z, w ) {
-  this.x = x || 0;
-  this.y = y || 0;
-  this.z = z || 0;
-  this.w = ( w !== undefined ) ? w : 1;
-};
-
-MathUtil.Quaternion.prototype = {
-  constructor: MathUtil.Quaternion,
-
-  set: function ( x, y, z, w ) {
-    this.x = x;
-    this.y = y;
-    this.z = z;
-    this.w = w;
-
-    return this;
-  },
-
-  copy: function ( quaternion ) {
-    this.x = quaternion.x;
-    this.y = quaternion.y;
-    this.z = quaternion.z;
-    this.w = quaternion.w;
-
-    return this;
-  },
-
-  setFromEulerXYZ: function( x, y, z ) {
-    var c1 = Math.cos( x / 2 );
-    var c2 = Math.cos( y / 2 );
-    var c3 = Math.cos( z / 2 );
-    var s1 = Math.sin( x / 2 );
-    var s2 = Math.sin( y / 2 );
-    var s3 = Math.sin( z / 2 );
-
-    this.x = s1 * c2 * c3 + c1 * s2 * s3;
-    this.y = c1 * s2 * c3 - s1 * c2 * s3;
-    this.z = c1 * c2 * s3 + s1 * s2 * c3;
-    this.w = c1 * c2 * c3 - s1 * s2 * s3;
-
-    return this;
-  },
-
-  setFromEulerYXZ: function( x, y, z ) {
-    var c1 = Math.cos( x / 2 );
-    var c2 = Math.cos( y / 2 );
-    var c3 = Math.cos( z / 2 );
-    var s1 = Math.sin( x / 2 );
-    var s2 = Math.sin( y / 2 );
-    var s3 = Math.sin( z / 2 );
-
-    this.x = s1 * c2 * c3 + c1 * s2 * s3;
-    this.y = c1 * s2 * c3 - s1 * c2 * s3;
-    this.z = c1 * c2 * s3 - s1 * s2 * c3;
-    this.w = c1 * c2 * c3 + s1 * s2 * s3;
-
-    return this;
-  },
-
-  setFromAxisAngle: function ( axis, angle ) {
-    // http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
-    // assumes axis is normalized
-
-    var halfAngle = angle / 2, s = Math.sin( halfAngle );
-
-    this.x = axis.x * s;
-    this.y = axis.y * s;
-    this.z = axis.z * s;
-    this.w = Math.cos( halfAngle );
-
-    return this;
-  },
-
-  multiply: function ( q ) {
-    return this.multiplyQuaternions( this, q );
-  },
-
-  multiplyQuaternions: function ( a, b ) {
-    // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
-
-    var qax = a.x, qay = a.y, qaz = a.z, qaw = a.w;
-    var qbx = b.x, qby = b.y, qbz = b.z, qbw = b.w;
-
-    this.x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
-    this.y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
-    this.z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
-    this.w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
-
-    return this;
-  },
-
-  inverse: function () {
-    this.x *= -1;
-    this.y *= -1;
-    this.z *= -1;
-
-    this.normalize();
-
-    return this;
-  },
-
-  normalize: function () {
-    var l = Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );
-
-    if ( l === 0 ) {
-      this.x = 0;
-      this.y = 0;
-      this.z = 0;
-      this.w = 1;
-    } else {
-      l = 1 / l;
-
-      this.x = this.x * l;
-      this.y = this.y * l;
-      this.z = this.z * l;
-      this.w = this.w * l;
-    }
-
-    return this;
-  },
-
-  slerp: function ( qb, t ) {
-    if ( t === 0 ) return this;
-    if ( t === 1 ) return this.copy( qb );
-
-    var x = this.x, y = this.y, z = this.z, w = this.w;
-
-    // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
-
-    var cosHalfTheta = w * qb.w + x * qb.x + y * qb.y + z * qb.z;
-
-    if ( cosHalfTheta < 0 ) {
-      this.w = - qb.w;
-      this.x = - qb.x;
-      this.y = - qb.y;
-      this.z = - qb.z;
-
-      cosHalfTheta = - cosHalfTheta;
-    } else {
-      this.copy( qb );
-    }
-
-    if ( cosHalfTheta >= 1.0 ) {
-      this.w = w;
-      this.x = x;
-      this.y = y;
-      this.z = z;
-
-      return this;
-    }
-
-    var halfTheta = Math.acos( cosHalfTheta );
-    var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );
-
-    if ( Math.abs( sinHalfTheta ) < 0.001 ) {
-      this.w = 0.5 * ( w + this.w );
-      this.x = 0.5 * ( x + this.x );
-      this.y = 0.5 * ( y + this.y );
-      this.z = 0.5 * ( z + this.z );
-
-      return this;
-    }
-
-    var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
-    ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;
-
-    this.w = ( w * ratioA + this.w * ratioB );
-    this.x = ( x * ratioA + this.x * ratioB );
-    this.y = ( y * ratioA + this.y * ratioB );
-    this.z = ( z * ratioA + this.z * ratioB );
-
-    return this;
-  },
-
-  setFromUnitVectors: function () {
-    // http://lolengine.net/blog/2014/02/24/quaternion-from-two-vectors-final
-    // assumes direction vectors vFrom and vTo are normalized
-
-    var v1, r;
-    var EPS = 0.000001;
-
-    return function ( vFrom, vTo ) {
-      if ( v1 === undefined ) v1 = new MathUtil.Vector3();
-
-      r = vFrom.dot( vTo ) + 1;
-
-      if ( r < EPS ) {
-        r = 0;
-
-        if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {
-          v1.set( - vFrom.y, vFrom.x, 0 );
-        } else {
-          v1.set( 0, - vFrom.z, vFrom.y );
-        }
-      } else {
-        v1.crossVectors( vFrom, vTo );
-      }
-
-      this.x = v1.x;
-      this.y = v1.y;
-      this.z = v1.z;
-      this.w = r;
-
-      this.normalize();
-
-      return this;
-    }
-  }(),
-};
-
-module.exports = MathUtil;
-
-},{}],59:[function(_dereq_,module,exports){
-/*
- * Copyright 2016 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var VRDisplay = _dereq_('./base.js').VRDisplay;
-var MathUtil = _dereq_('./math-util.js');
-var Util = _dereq_('./util.js');
-
-// How much to rotate per key stroke.
-var KEY_SPEED = 0.15;
-var KEY_ANIMATION_DURATION = 80;
-
-// How much to rotate for mouse events.
-var MOUSE_SPEED_X = 0.5;
-var MOUSE_SPEED_Y = 0.3;
-
-/**
- * VRDisplay based on mouse and keyboard input. Designed for desktops/laptops
- * where orientation events aren't supported. Cannot present.
- */
-function MouseKeyboardVRDisplay() {
-  this.displayName = 'Mouse and Keyboard VRDisplay (webvr-polyfill)';
-
-  this.capabilities.hasOrientation = true;
-
-  this.onKeyDown_ = this.onKeyDown_.bind(this);
-  this.onMouseDown_ = this.onMouseDown_.bind(this);
-  this.onMouseMove_ = this.onMouseMove_.bind(this);
-  this.onMouseUp_ = this.onMouseUp_.bind(this);
-
-  // Attach to mouse and keyboard events.
-  window.addEventListener('keydown', this.onKeyDown_);
-  window.addEventListener('mousemove', this.onMouseMove_);
-  window.addEventListener('mousedown', this.onMouseDown_);
-  window.addEventListener('mouseup', this.onMouseUp_);
-
-  // "Private" members.
-  this.phi_ = 0;
-  this.theta_ = 0;
-
-  // Variables for keyboard-based rotation animation.
-  this.targetAngle_ = null;
-  this.angleAnimation_ = null;
-
-  // State variables for calculations.
-  this.orientation_ = new MathUtil.Quaternion();
-
-  // Variables for mouse-based rotation.
-  this.rotateStart_ = new MathUtil.Vector2();
-  this.rotateEnd_ = new MathUtil.Vector2();
-  this.rotateDelta_ = new MathUtil.Vector2();
-  this.isDragging_ = false;
-
-  this.orientationOut_ = new Float32Array(4);
-}
-MouseKeyboardVRDisplay.prototype = new VRDisplay();
-
-MouseKeyboardVRDisplay.prototype.getImmediatePose = function() {
-  this.orientation_.setFromEulerYXZ(this.phi_, this.theta_, 0);
-
-  this.orientationOut_[0] = this.orientation_.x;
-  this.orientationOut_[1] = this.orientation_.y;
-  this.orientationOut_[2] = this.orientation_.z;
-  this.orientationOut_[3] = this.orientation_.w;
-
-  return {
-    position: null,
-    orientation: this.orientationOut_,
-    linearVelocity: null,
-    linearAcceleration: null,
-    angularVelocity: null,
-    angularAcceleration: null
-  };
-};
-
-MouseKeyboardVRDisplay.prototype.onKeyDown_ = function(e) {
-  // Track WASD and arrow keys.
-  if (e.keyCode == 38) { // Up key.
-    this.animatePhi_(this.phi_ + KEY_SPEED);
-  } else if (e.keyCode == 39) { // Right key.
-    this.animateTheta_(this.theta_ - KEY_SPEED);
-  } else if (e.keyCode == 40) { // Down key.
-    this.animatePhi_(this.phi_ - KEY_SPEED);
-  } else if (e.keyCode == 37) { // Left key.
-    this.animateTheta_(this.theta_ + KEY_SPEED);
-  }
-};
-
-MouseKeyboardVRDisplay.prototype.animateTheta_ = function(targetAngle) {
-  this.animateKeyTransitions_('theta_', targetAngle);
-};
-
-MouseKeyboardVRDisplay.prototype.animatePhi_ = function(targetAngle) {
-  // Prevent looking too far up or down.
-  targetAngle = Util.clamp(targetAngle, -Math.PI/2, Math.PI/2);
-  this.animateKeyTransitions_('phi_', targetAngle);
-};
-
-/**
- * Start an animation to transition an angle from one value to another.
- */
-MouseKeyboardVRDisplay.prototype.animateKeyTransitions_ = function(angleName, targetAngle) {
-  // If an animation is currently running, cancel it.
-  if (this.angleAnimation_) {
-    cancelAnimationFrame(this.angleAnimation_);
-  }
-  var startAngle = this[angleName];
-  var startTime = new Date();
-  // Set up an interval timer to perform the animation.
-  this.angleAnimation_ = requestAnimationFrame(function animate() {
-    // Once we're finished the animation, we're done.
-    var elapsed = new Date() - startTime;
-    if (elapsed >= KEY_ANIMATION_DURATION) {
-      this[angleName] = targetAngle;
-      cancelAnimationFrame(this.angleAnimation_);
-      return;
-    }
-    // loop with requestAnimationFrame
-    this.angleAnimation_ = requestAnimationFrame(animate.bind(this))
-    // Linearly interpolate the angle some amount.
-    var percent = elapsed / KEY_ANIMATION_DURATION;
-    this[angleName] = startAngle + (targetAngle - startAngle) * percent;
-  }.bind(this));
-};
-
-MouseKeyboardVRDisplay.prototype.onMouseDown_ = function(e) {
-  this.rotateStart_.set(e.clientX, e.clientY);
-  this.isDragging_ = true;
-};
-
-// Very similar to https://gist.github.com/mrflix/8351020
-MouseKeyboardVRDisplay.prototype.onMouseMove_ = function(e) {
-  if (!this.isDragging_ && !this.isPointerLocked_()) {
-    return;
-  }
-  // Support pointer lock API.
-  if (this.isPointerLocked_()) {
-    var movementX = e.movementX || e.mozMovementX || 0;
-    var movementY = e.movementY || e.mozMovementY || 0;
-    this.rotateEnd_.set(this.rotateStart_.x - movementX, this.rotateStart_.y - movementY);
-  } else {
-    this.rotateEnd_.set(e.clientX, e.clientY);
-  }
-  // Calculate how much we moved in mouse space.
-  this.rotateDelta_.subVectors(this.rotateEnd_, this.rotateStart_);
-  this.rotateStart_.copy(this.rotateEnd_);
-
-  // Keep track of the cumulative euler angles.
-  this.phi_ += 2 * Math.PI * this.rotateDelta_.y / screen.height * MOUSE_SPEED_Y;
-  this.theta_ += 2 * Math.PI * this.rotateDelta_.x / screen.width * MOUSE_SPEED_X;
-
-  // Prevent looking too far up or down.
-  this.phi_ = Util.clamp(this.phi_, -Math.PI/2, Math.PI/2);
-};
-
-MouseKeyboardVRDisplay.prototype.onMouseUp_ = function(e) {
-  this.isDragging_ = false;
-};
-
-MouseKeyboardVRDisplay.prototype.isPointerLocked_ = function() {
-  var el = document.pointerLockElement || document.mozPointerLockElement ||
-      document.webkitPointerLockElement;
-  return el !== undefined;
-};
-
-MouseKeyboardVRDisplay.prototype.resetPose = function() {
-  this.phi_ = 0;
-  this.theta_ = 0;
-};
-
-module.exports = MouseKeyboardVRDisplay;
-
-},{"./base.js":47,"./math-util.js":58,"./util.js":67}],60:[function(_dereq_,module,exports){
-(function (global){
-// This is the entry point if requiring/importing via node, or
-// a build tool that uses package.json entry (like browserify, webpack).
-// If running in node with a window mock available, globalize its members
-// if needed. Otherwise, just continue to `./main`
-if (typeof global !== 'undefined' && global.window) {
-  if (!global.document) {
-    global.document = global.window.document;
-  }
-  if (!global.navigator) {
-    global.navigator = global.window.navigator;
-  }
-}
-
-_dereq_('./main');
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"./main":57}],61:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = _dereq_('./util.js');
-
-function RotateInstructions() {
-  this.loadIcon_();
-
-  var overlay = document.createElement('div');
-  var s = overlay.style;
-  s.position = 'fixed';
-  s.top = 0;
-  s.right = 0;
-  s.bottom = 0;
-  s.left = 0;
-  s.backgroundColor = 'gray';
-  s.fontFamily = 'sans-serif';
-  // Force this to be above the fullscreen canvas, which is at zIndex: 999999.
-  s.zIndex = 1000000;
-
-  var img = document.createElement('img');
-  img.src = this.icon;
-  var s = img.style;
-  s.marginLeft = '25%';
-  s.marginTop = '25%';
-  s.width = '50%';
-  overlay.appendChild(img);
-
-  var text = document.createElement('div');
-  var s = text.style;
-  s.textAlign = 'center';
-  s.fontSize = '16px';
-  s.lineHeight = '24px';
-  s.margin = '24px 25%';
-  s.width = '50%';
-  text.innerHTML = 'Place your phone into your Cardboard viewer.';
-  overlay.appendChild(text);
-
-  var snackbar = document.createElement('div');
-  var s = snackbar.style;
-  s.backgroundColor = '#CFD8DC';
-  s.position = 'fixed';
-  s.bottom = 0;
-  s.width = '100%';
-  s.height = '48px';
-  s.padding = '14px 24px';
-  s.boxSizing = 'border-box';
-  s.color = '#656A6B';
-  overlay.appendChild(snackbar);
-
-  var snackbarText = document.createElement('div');
-  snackbarText.style.float = 'left';
-  snackbarText.innerHTML = 'No Cardboard viewer?';
-
-  var snackbarButton = document.createElement('a');
-  snackbarButton.href = 'https://www.google.com/get/cardboard/get-cardboard/';
-  snackbarButton.innerHTML = 'get one';
-  snackbarButton.target = '_blank';
-  var s = snackbarButton.style;
-  s.float = 'right';
-  s.fontWeight = 600;
-  s.textTransform = 'uppercase';
-  s.borderLeft = '1px solid gray';
-  s.paddingLeft = '24px';
-  s.textDecoration = 'none';
-  s.color = '#656A6B';
-
-  snackbar.appendChild(snackbarText);
-  snackbar.appendChild(snackbarButton);
-
-  this.overlay = overlay;
-  this.text = text;
-
-  this.hide();
-}
-
-RotateInstructions.prototype.show = function(parent) {
-  if (!parent && !this.overlay.parentElement) {
-    document.body.appendChild(this.overlay);
-  } else if (parent) {
-    if (this.overlay.parentElement && this.overlay.parentElement != parent)
-      this.overlay.parentElement.removeChild(this.overlay);
-
-    parent.appendChild(this.overlay);
-  }
-
-  this.overlay.style.display = 'block';
-
-  var img = this.overlay.querySelector('img');
-  var s = img.style;
-
-  if (Util.isLandscapeMode()) {
-    s.width = '20%';
-    s.marginLeft = '40%';
-    s.marginTop = '3%';
-  } else {
-    s.width = '50%';
-    s.marginLeft = '25%';
-    s.marginTop = '25%';
-  }
-};
-
-RotateInstructions.prototype.hide = function() {
-  this.overlay.style.display = 'none';
-};
-
-RotateInstructions.prototype.showTemporarily = function(ms, parent) {
-  this.show(parent);
-  this.timer = setTimeout(this.hide.bind(this), ms);
-};
-
-RotateInstructions.prototype.disableShowTemporarily = function() {
-  clearTimeout(this.timer);
-};
-
-RotateInstructions.prototype.update = function() {
-  this.disableShowTemporarily();
-  // In portrait VR mode, tell the user to rotate to landscape. Otherwise, hide
-  // the instructions.
-  if (!Util.isLandscapeMode() && Util.isMobile()) {
-    this.show();
-  } else {
-    this.hide();
-  }
-};
-
-RotateInstructions.prototype.loadIcon_ = function() {
-  // Encoded asset_src/rotate-instructions.svg
-  this.icon = Util.base64('image/svg+xml', '<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg width="198px" height="240px" viewBox="0 0 198 240" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns">
    <!-- Generator: Sketch 3.3.3 (12081) - http://www.bohemiancoding.com/sketch -->
    <title>transition</title>
    <desc>Created with Sketch.</desc>
    <defs></defs>
    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" sketch:type="MSPage">
        <g id="transition" sketch:type="MSArtboardGroup">
            <g id="Imported-Layers-Copy-4-+-Imported-Layers-Copy-+-Imported-Layers-Copy-2-Copy" sketch:type="MSLayerGroup">
                <g id="Imported-Layers-Copy-4" transform="translate(0.000000, 107.000000)" sketch:type="MSShapeGroup">
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                    <path d="M10.083,90.375 L10.083,46.421 L10.146,46.385 L77.403,7.554 L77.403,51.508 L77.341,51.544 L10.083,90.375 L10.083,90.375 Z M10.333,46.564 L10.333,89.944 L77.154,51.365 L77.154,7.985 L10.333,46.564 L10.333,46.564 Z" id="Fill-20" fill="#607D8B"></path>
                </g>
                <path d="M125.737,88.647 L118.098,91.981 L118.098,84 L106.639,88.713 L106.639,96.982 L99,100.315 L112.369,103.961 L125.737,88.647" id="Imported-Layers-Copy-2" fill="#455A64" sketch:type="MSShapeGroup"></path>
            </g>
        </g>
    </g>
</svg>');
-};
-
-module.exports = RotateInstructions;
-
-},{"./util.js":67}],62:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var SensorSample = _dereq_('./sensor-sample.js');
-var MathUtil = _dereq_('../math-util.js');
-var Util = _dereq_('../util.js');
-
-/**
- * An implementation of a simple complementary filter, which fuses gyroscope and
- * accelerometer data from the 'devicemotion' event.
- *
- * Accelerometer data is very noisy, but stable over the long term.
- * Gyroscope data is smooth, but tends to drift over the long term.
- *
- * This fusion is relatively simple:
- * 1. Get orientation estimates from accelerometer by applying a low-pass filter
- *    on that data.
- * 2. Get orientation estimates from gyroscope by integrating over time.
- * 3. Combine the two estimates, weighing (1) in the long term, but (2) for the
- *    short term.
- */
-function ComplementaryFilter(kFilter) {
-  this.kFilter = kFilter;
-
-  // Raw sensor measurements.
-  this.currentAccelMeasurement = new SensorSample();
-  this.currentGyroMeasurement = new SensorSample();
-  this.previousGyroMeasurement = new SensorSample();
-
-  // Set default look direction to be in the correct direction.
-  if (Util.isIOS()) {
-    this.filterQ = new MathUtil.Quaternion(-1, 0, 0, 1);
-  } else {
-    this.filterQ = new MathUtil.Quaternion(1, 0, 0, 1);
-  }
-  this.previousFilterQ = new MathUtil.Quaternion();
-  this.previousFilterQ.copy(this.filterQ);
-
-  // Orientation based on the accelerometer.
-  this.accelQ = new MathUtil.Quaternion();
-  // Whether or not the orientation has been initialized.
-  this.isOrientationInitialized = false;
-  // Running estimate of gravity based on the current orientation.
-  this.estimatedGravity = new MathUtil.Vector3();
-  // Measured gravity based on accelerometer.
-  this.measuredGravity = new MathUtil.Vector3();
-
-  // Debug only quaternion of gyro-based orientation.
-  this.gyroIntegralQ = new MathUtil.Quaternion();
-}
-
-ComplementaryFilter.prototype.addAccelMeasurement = function(vector, timestampS) {
-  this.currentAccelMeasurement.set(vector, timestampS);
-};
-
-ComplementaryFilter.prototype.addGyroMeasurement = function(vector, timestampS) {
-  this.currentGyroMeasurement.set(vector, timestampS);
-
-  var deltaT = timestampS - this.previousGyroMeasurement.timestampS;
-  if (Util.isTimestampDeltaValid(deltaT)) {
-    this.run_();
-  }
-
-  this.previousGyroMeasurement.copy(this.currentGyroMeasurement);
-};
-
-ComplementaryFilter.prototype.run_ = function() {
-
-  if (!this.isOrientationInitialized) {
-    this.accelQ = this.accelToQuaternion_(this.currentAccelMeasurement.sample);
-    this.previousFilterQ.copy(this.accelQ);
-    this.isOrientationInitialized = true;
-    return;
-  }
-
-  var deltaT = this.currentGyroMeasurement.timestampS -
-      this.previousGyroMeasurement.timestampS;
-
-  // Convert gyro rotation vector to a quaternion delta.
-  var gyroDeltaQ = this.gyroToQuaternionDelta_(this.currentGyroMeasurement.sample, deltaT);
-  this.gyroIntegralQ.multiply(gyroDeltaQ);
-
-  // filter_1 = K * (filter_0 + gyro * dT) + (1 - K) * accel.
-  this.filterQ.copy(this.previousFilterQ);
-  this.filterQ.multiply(gyroDeltaQ);
-
-  // Calculate the delta between the current estimated gravity and the real
-  // gravity vector from accelerometer.
-  var invFilterQ = new MathUtil.Quaternion();
-  invFilterQ.copy(this.filterQ);
-  invFilterQ.inverse();
-
-  this.estimatedGravity.set(0, 0, -1);
-  this.estimatedGravity.applyQuaternion(invFilterQ);
-  this.estimatedGravity.normalize();
-
-  this.measuredGravity.copy(this.currentAccelMeasurement.sample);
-  this.measuredGravity.normalize();
-
-  // Compare estimated gravity with measured gravity, get the delta quaternion
-  // between the two.
-  var deltaQ = new MathUtil.Quaternion();
-  deltaQ.setFromUnitVectors(this.estimatedGravity, this.measuredGravity);
-  deltaQ.inverse();
-
-  if (Util.isDebug()) {
-    console.log('Delta: %d deg, G_est: (%s, %s, %s), G_meas: (%s, %s, %s)',
-                MathUtil.radToDeg * Util.getQuaternionAngle(deltaQ),
-                (this.estimatedGravity.x).toFixed(1),
-                (this.estimatedGravity.y).toFixed(1),
-                (this.estimatedGravity.z).toFixed(1),
-                (this.measuredGravity.x).toFixed(1),
-                (this.measuredGravity.y).toFixed(1),
-                (this.measuredGravity.z).toFixed(1));
-  }
-
-  // Calculate the SLERP target: current orientation plus the measured-estimated
-  // quaternion delta.
-  var targetQ = new MathUtil.Quaternion();
-  targetQ.copy(this.filterQ);
-  targetQ.multiply(deltaQ);
-
-  // SLERP factor: 0 is pure gyro, 1 is pure accel.
-  this.filterQ.slerp(targetQ, 1 - this.kFilter);
-
-  this.previousFilterQ.copy(this.filterQ);
-};
-
-ComplementaryFilter.prototype.getOrientation = function() {
-  return this.filterQ;
-};
-
-ComplementaryFilter.prototype.accelToQuaternion_ = function(accel) {
-  var normAccel = new MathUtil.Vector3();
-  normAccel.copy(accel);
-  normAccel.normalize();
-  var quat = new MathUtil.Quaternion();
-  quat.setFromUnitVectors(new MathUtil.Vector3(0, 0, -1), normAccel);
-  quat.inverse();
-  return quat;
-};
-
-ComplementaryFilter.prototype.gyroToQuaternionDelta_ = function(gyro, dt) {
-  // Extract axis and angle from the gyroscope data.
-  var quat = new MathUtil.Quaternion();
-  var axis = new MathUtil.Vector3();
-  axis.copy(gyro);
-  axis.normalize();
-  quat.setFromAxisAngle(axis, gyro.length() * dt);
-  return quat;
-};
-
-
-module.exports = ComplementaryFilter;
-
-},{"../math-util.js":58,"../util.js":67,"./sensor-sample.js":65}],63:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-var ComplementaryFilter = _dereq_('./complementary-filter.js');
-var PosePredictor = _dereq_('./pose-predictor.js');
-var TouchPanner = _dereq_('../touch-panner.js');
-var MathUtil = _dereq_('../math-util.js');
-var Util = _dereq_('../util.js');
-
-/**
- * The pose sensor, implemented using DeviceMotion APIs.
- */
-function FusionPoseSensor() {
-  this.deviceId = 'webvr-polyfill:fused';
-  this.deviceName = 'VR Position Device (webvr-polyfill:fused)';
-
-  this.accelerometer = new MathUtil.Vector3();
-  this.gyroscope = new MathUtil.Vector3();
-
-  this.start();
-
-  this.filter = new ComplementaryFilter(window.WebVRConfig.K_FILTER);
-  this.posePredictor = new PosePredictor(window.WebVRConfig.PREDICTION_TIME_S);
-  this.touchPanner = new TouchPanner();
-
-  this.filterToWorldQ = new MathUtil.Quaternion();
-
-  // Set the filter to world transform, depending on OS.
-  if (Util.isIOS()) {
-    this.filterToWorldQ.setFromAxisAngle(new MathUtil.Vector3(1, 0, 0), Math.PI / 2);
-  } else {
-    this.filterToWorldQ.setFromAxisAngle(new MathUtil.Vector3(1, 0, 0), -Math.PI / 2);
-  }
-
-  this.inverseWorldToScreenQ = new MathUtil.Quaternion();
-  this.worldToScreenQ = new MathUtil.Quaternion();
-  this.originalPoseAdjustQ = new MathUtil.Quaternion();
-  this.originalPoseAdjustQ.setFromAxisAngle(new MathUtil.Vector3(0, 0, 1),
-                                           -window.orientation * Math.PI / 180);
-
-  this.setScreenTransform_();
-  // Adjust this filter for being in landscape mode.
-  if (Util.isLandscapeMode()) {
-    this.filterToWorldQ.multiply(this.inverseWorldToScreenQ);
-  }
-
-  // Keep track of a reset transform for resetSensor.
-  this.resetQ = new MathUtil.Quaternion();
-
-  this.isFirefoxAndroid = Util.isFirefoxAndroid();
-  this.isIOS = Util.isIOS();
-
-  this.orientationOut_ = new Float32Array(4);
-}
-
-FusionPoseSensor.prototype.getPosition = function() {
-  // This PoseSensor doesn't support position
-  return null;
-};
-
-FusionPoseSensor.prototype.getOrientation = function() {
-  // Convert from filter space to the the same system used by the
-  // deviceorientation event.
-  var orientation = this.filter.getOrientation();
-
-  // Predict orientation.
-  this.predictedQ = this.posePredictor.getPrediction(orientation, this.gyroscope, this.previousTimestampS);
-
-  // Convert to THREE coordinate system: -Z forward, Y up, X right.
-  var out = new MathUtil.Quaternion();
-  out.copy(this.filterToWorldQ);
-  out.multiply(this.resetQ);
-  if (!window.WebVRConfig.TOUCH_PANNER_DISABLED) {
-    out.multiply(this.touchPanner.getOrientation());
-  }
-  out.multiply(this.predictedQ);
-  out.multiply(this.worldToScreenQ);
-
-  // Handle the yaw-only case.
-  if (window.WebVRConfig.YAW_ONLY) {
-    // Make a quaternion that only turns around the Y-axis.
-    out.x = 0;
-    out.z = 0;
-    out.normalize();
-  }
-
-  this.orientationOut_[0] = out.x;
-  this.orientationOut_[1] = out.y;
-  this.orientationOut_[2] = out.z;
-  this.orientationOut_[3] = out.w;
-  return this.orientationOut_;
-};
-
-FusionPoseSensor.prototype.resetPose = function() {
-  // Reduce to inverted yaw-only.
-  this.resetQ.copy(this.filter.getOrientation());
-  this.resetQ.x = 0;
-  this.resetQ.y = 0;
-  this.resetQ.z *= -1;
-  this.resetQ.normalize();
-
-  // Take into account extra transformations in landscape mode.
-  if (Util.isLandscapeMode()) {
-    this.resetQ.multiply(this.inverseWorldToScreenQ);
-  }
-
-  // Take into account original pose.
-  this.resetQ.multiply(this.originalPoseAdjustQ);
-
-  if (!window.WebVRConfig.TOUCH_PANNER_DISABLED) {
-    this.touchPanner.resetSensor();
-  }
-};
-
-FusionPoseSensor.prototype.onDeviceMotion_ = function(deviceMotion) {
-  this.updateDeviceMotion_(deviceMotion);
-};
-
-FusionPoseSensor.prototype.updateDeviceMotion_ = function(deviceMotion) {
-  var accGravity = deviceMotion.accelerationIncludingGravity;
-  var rotRate = deviceMotion.rotationRate;
-  var timestampS = deviceMotion.timeStamp / 1000;
-
-  var deltaS = timestampS - this.previousTimestampS;
-  if (deltaS <= Util.MIN_TIMESTEP || deltaS > Util.MAX_TIMESTEP) {
-    console.warn('Invalid timestamps detected. Time step between successive ' +
-                 'gyroscope sensor samples is very small or not monotonic');
-    this.previousTimestampS = timestampS;
-    return;
-  }
-
-  this.accelerometer.set(-accGravity.x, -accGravity.y, -accGravity.z);
-  if (Util.isR7()) {
-    this.gyroscope.set(-rotRate.beta, rotRate.alpha, rotRate.gamma);
-  } else {
-    this.gyroscope.set(rotRate.alpha, rotRate.beta, rotRate.gamma);
-  }
-
-  // With iOS and Firefox Android, rotationRate is reported in degrees,
-  // so we first convert to radians.
-  if (this.isIOS || this.isFirefoxAndroid) {
-    this.gyroscope.multiplyScalar(Math.PI / 180);
-  }
-
-  this.filter.addAccelMeasurement(this.accelerometer, timestampS);
-  this.filter.addGyroMeasurement(this.gyroscope, timestampS);
-
-  this.previousTimestampS = timestampS;
-};
-
-FusionPoseSensor.prototype.onOrientationChange_ = function(screenOrientation) {
-  this.setScreenTransform_();
-};
-
-/**
- * This is only needed if we are in an cross origin iframe on iOS to work around
- * this issue: https://bugs.webkit.org/show_bug.cgi?id=152299.
- */
-FusionPoseSensor.prototype.onMessage_ = function(event) {
-  var message = event.data;
-
-  // If there's no message type, ignore it.
-  if (!message || !message.type) {
-    return;
-  }
-
-  // Ignore all messages that aren't devicemotion.
-  var type = message.type.toLowerCase();
-  if (type !== 'devicemotion') {
-    return;
-  }
-
-  // Update device motion.
-  this.updateDeviceMotion_(message.deviceMotionEvent);
-};
-
-FusionPoseSensor.prototype.setScreenTransform_ = function() {
-  this.worldToScreenQ.set(0, 0, 0, 1);
-  switch (window.orientation) {
-    case 0:
-      break;
-    case 90:
-      this.worldToScreenQ.setFromAxisAngle(new MathUtil.Vector3(0, 0, 1), -Math.PI / 2);
-      break;
-    case -90:
-      this.worldToScreenQ.setFromAxisAngle(new MathUtil.Vector3(0, 0, 1), Math.PI / 2);
-      break;
-    case 180:
-      // TODO.
-      break;
-  }
-  this.inverseWorldToScreenQ.copy(this.worldToScreenQ);
-  this.inverseWorldToScreenQ.inverse();
-};
-
-FusionPoseSensor.prototype.start = function() {
-  this.onDeviceMotionCallback_ = this.onDeviceMotion_.bind(this);
-  this.onOrientationChangeCallback_ = this.onOrientationChange_.bind(this);
-  this.onMessageCallback_ = this.onMessage_.bind(this);
-
-  // Only listen for postMessages if we're in an iOS and embedded inside a cross
-  // domain IFrame. In this case, the polyfill can still work if the containing
-  // page sends synthetic devicemotion events. For an example of this, see
-  // iframe-message-sender.js in VR View: https://goo.gl/XDtvFZ
-  if (Util.isIOS() && Util.isInsideCrossDomainIFrame()) {
-    window.addEventListener('message', this.onMessageCallback_);
-  }
-  window.addEventListener('orientationchange', this.onOrientationChangeCallback_);
-  window.addEventListener('devicemotion', this.onDeviceMotionCallback_);
-};
-
-FusionPoseSensor.prototype.stop = function() {
-  window.removeEventListener('devicemotion', this.onDeviceMotionCallback_);
-  window.removeEventListener('orientationchange', this.onOrientationChangeCallback_);
-  window.removeEventListener('message', this.onMessageCallback_);
-};
-
-module.exports = FusionPoseSensor;
-
-},{"../math-util.js":58,"../touch-panner.js":66,"../util.js":67,"./complementary-filter.js":62,"./pose-predictor.js":64}],64:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-var MathUtil = _dereq_('../math-util');
-var Util = _dereq_('../util');
-
-/**
- * Given an orientation and the gyroscope data, predicts the future orientation
- * of the head. This makes rendering appear faster.
- *
- * Also see: http://msl.cs.uiuc.edu/~lavalle/papers/LavYerKatAnt14.pdf
- *
- * @param {Number} predictionTimeS time from head movement to the appearance of
- * the corresponding image.
- */
-function PosePredictor(predictionTimeS) {
-  this.predictionTimeS = predictionTimeS;
-
-  // The quaternion corresponding to the previous state.
-  this.previousQ = new MathUtil.Quaternion();
-  // Previous time a prediction occurred.
-  this.previousTimestampS = null;
-
-  // The delta quaternion that adjusts the current pose.
-  this.deltaQ = new MathUtil.Quaternion();
-  // The output quaternion.
-  this.outQ = new MathUtil.Quaternion();
-}
-
-PosePredictor.prototype.getPrediction = function(currentQ, gyro, timestampS) {
-  if (!this.previousTimestampS) {
-    this.previousQ.copy(currentQ);
-    this.previousTimestampS = timestampS;
-    return currentQ;
-  }
-
-  // Calculate axis and angle based on gyroscope rotation rate data.
-  var axis = new MathUtil.Vector3();
-  axis.copy(gyro);
-  axis.normalize();
-
-  var angularSpeed = gyro.length();
-
-  // If we're rotating slowly, don't do prediction.
-  if (angularSpeed < MathUtil.degToRad * 20) {
-    if (Util.isDebug()) {
-      console.log('Moving slowly, at %s deg/s: no prediction',
-                  (MathUtil.radToDeg * angularSpeed).toFixed(1));
-    }
-    this.outQ.copy(currentQ);
-    this.previousQ.copy(currentQ);
-    return this.outQ;
-  }
-
-  // Get the predicted angle based on the time delta and latency.
-  var deltaT = timestampS - this.previousTimestampS;
-  var predictAngle = angularSpeed * this.predictionTimeS;
-
-  this.deltaQ.setFromAxisAngle(axis, predictAngle);
-  this.outQ.copy(this.previousQ);
-  this.outQ.multiply(this.deltaQ);
-
-  this.previousQ.copy(currentQ);
-  this.previousTimestampS = timestampS;
-
-  return this.outQ;
-};
-
-
-module.exports = PosePredictor;
-
-},{"../math-util":58,"../util":67}],65:[function(_dereq_,module,exports){
-function SensorSample(sample, timestampS) {
-  this.set(sample, timestampS);
-};
-
-SensorSample.prototype.set = function(sample, timestampS) {
-  this.sample = sample;
-  this.timestampS = timestampS;
-};
-
-SensorSample.prototype.copy = function(sensorSample) {
-  this.set(sensorSample.sample, sensorSample.timestampS);
-};
-
-module.exports = SensorSample;
-
-},{}],66:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-var MathUtil = _dereq_('./math-util.js');
-var Util = _dereq_('./util.js');
-
-var ROTATE_SPEED = 0.5;
-/**
- * Provides a quaternion responsible for pre-panning the scene before further
- * transformations due to device sensors.
- */
-function TouchPanner() {
-  window.addEventListener('touchstart', this.onTouchStart_.bind(this));
-  window.addEventListener('touchmove', this.onTouchMove_.bind(this));
-  window.addEventListener('touchend', this.onTouchEnd_.bind(this));
-
-  this.isTouching = false;
-  this.rotateStart = new MathUtil.Vector2();
-  this.rotateEnd = new MathUtil.Vector2();
-  this.rotateDelta = new MathUtil.Vector2();
-
-  this.theta = 0;
-  this.orientation = new MathUtil.Quaternion();
-}
-
-TouchPanner.prototype.getOrientation = function() {
-  this.orientation.setFromEulerXYZ(0, 0, this.theta);
-  return this.orientation;
-};
-
-TouchPanner.prototype.resetSensor = function() {
-  this.theta = 0;
-};
-
-TouchPanner.prototype.onTouchStart_ = function(e) {
-  // Only respond if there is exactly one touch.
-  // Note that the Daydream controller passes in a `touchstart` event with
-  // no `touches` property, so we must check for that case too.
-  if (!e.touches || e.touches.length != 1) {
-    return;
-  }
-  this.rotateStart.set(e.touches[0].pageX, e.touches[0].pageY);
-  this.isTouching = true;
-};
-
-TouchPanner.prototype.onTouchMove_ = function(e) {
-  if (!this.isTouching) {
-    return;
-  }
-  this.rotateEnd.set(e.touches[0].pageX, e.touches[0].pageY);
-  this.rotateDelta.subVectors(this.rotateEnd, this.rotateStart);
-  this.rotateStart.copy(this.rotateEnd);
-
-  // On iOS, direction is inverted.
-  if (Util.isIOS()) {
-    this.rotateDelta.x *= -1;
-  }
-
-  var element = document.body;
-  this.theta += 2 * Math.PI * this.rotateDelta.x / element.clientWidth * ROTATE_SPEED;
-};
-
-TouchPanner.prototype.onTouchEnd_ = function(e) {
-  this.isTouching = false;
-};
-
-module.exports = TouchPanner;
-
-},{"./math-util.js":58,"./util.js":67}],67:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = window.Util || {};
-
-Util.MIN_TIMESTEP = 0.001;
-Util.MAX_TIMESTEP = 1;
-
-Util.base64 = function(mimeType, base64) {
-  return 'data:' + mimeType + ';base64,' + base64;
-};
-
-Util.clamp = function(value, min, max) {
-  return Math.min(Math.max(min, value), max);
-};
-
-Util.lerp = function(a, b, t) {
-  return a + ((b - a) * t);
-};
-
-/**
- * Light polyfill for `Promise.race`. Returns
- * a promise that resolves when the first promise
- * provided resolves.
- *
- * @param {Array<Promise>} promises
- */
-Util.race = function(promises) {
-  if (Promise.race) {
-    return Promise.race(promises);
-  }
-
-  return new Promise(function (resolve, reject) {
-    for (var i = 0; i < promises.length; i++) {
-      promises[i].then(resolve, reject);
-    }
-  });
-};
-
-Util.isIOS = (function() {
-  var isIOS = /iPad|iPhone|iPod/.test(navigator.platform);
-  return function() {
-    return isIOS;
-  };
-})();
-
-Util.isWebViewAndroid = (function() {
-  var isWebViewAndroid = navigator.userAgent.indexOf('Version') !== -1 &&
-      navigator.userAgent.indexOf('Android') !== -1 &&
-      navigator.userAgent.indexOf('Chrome') !== -1;
-  return function() {
-    return isWebViewAndroid;
-  };
-})();
-
-Util.isSafari = (function() {
-  var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
-  return function() {
-    return isSafari;
-  };
-})();
-
-Util.isFirefoxAndroid = (function() {
-  var isFirefoxAndroid = navigator.userAgent.indexOf('Firefox') !== -1 &&
-      navigator.userAgent.indexOf('Android') !== -1;
-  return function() {
-    return isFirefoxAndroid;
-  };
-})();
-
-Util.isR7 = (function() {
-  var isR7 = navigator.userAgent.indexOf('R7 Build') !== -1;
-  return function() {
-    return isR7;
-  };
-})();
-
-Util.isLandscapeMode = function() {
-  var rtn = (window.orientation == 90 || window.orientation == -90);
-  return Util.isR7() ? !rtn : rtn;
-};
-
-// Helper method to validate the time steps of sensor timestamps.
-Util.isTimestampDeltaValid = function(timestampDeltaS) {
-  if (isNaN(timestampDeltaS)) {
-    return false;
-  }
-  if (timestampDeltaS <= Util.MIN_TIMESTEP) {
-    return false;
-  }
-  if (timestampDeltaS > Util.MAX_TIMESTEP) {
-    return false;
-  }
-  return true;
-};
-
-Util.getScreenWidth = function() {
-  return Math.max(window.screen.width, window.screen.height) *
-      window.devicePixelRatio;
-};
-
-Util.getScreenHeight = function() {
-  return Math.min(window.screen.width, window.screen.height) *
-      window.devicePixelRatio;
-};
-
-Util.requestFullscreen = function(element) {
-  if (Util.isWebViewAndroid()) {
-      return false;
-  }
-  if (element.requestFullscreen) {
-    element.requestFullscreen();
-  } else if (element.webkitRequestFullscreen) {
-    element.webkitRequestFullscreen();
-  } else if (element.mozRequestFullScreen) {
-    element.mozRequestFullScreen();
-  } else if (element.msRequestFullscreen) {
-    element.msRequestFullscreen();
-  } else {
-    return false;
-  }
-
-  return true;
-};
-
-Util.exitFullscreen = function() {
-  if (document.exitFullscreen) {
-    document.exitFullscreen();
-  } else if (document.webkitExitFullscreen) {
-    document.webkitExitFullscreen();
-  } else if (document.mozCancelFullScreen) {
-    document.mozCancelFullScreen();
-  } else if (document.msExitFullscreen) {
-    document.msExitFullscreen();
-  } else {
-    return false;
-  }
-
-  return true;
-};
-
-Util.getFullscreenElement = function() {
-  return document.fullscreenElement ||
-      document.webkitFullscreenElement ||
-      document.mozFullScreenElement ||
-      document.msFullscreenElement;
-};
-
-Util.linkProgram = function(gl, vertexSource, fragmentSource, attribLocationMap) {
-  // No error checking for brevity.
-  var vertexShader = gl.createShader(gl.VERTEX_SHADER);
-  gl.shaderSource(vertexShader, vertexSource);
-  gl.compileShader(vertexShader);
-
-  var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
-  gl.shaderSource(fragmentShader, fragmentSource);
-  gl.compileShader(fragmentShader);
-
-  var program = gl.createProgram();
-  gl.attachShader(program, vertexShader);
-  gl.attachShader(program, fragmentShader);
-
-  for (var attribName in attribLocationMap)
-    gl.bindAttribLocation(program, attribLocationMap[attribName], attribName);
-
-  gl.linkProgram(program);
-
-  gl.deleteShader(vertexShader);
-  gl.deleteShader(fragmentShader);
-
-  return program;
-};
-
-Util.getProgramUniforms = function(gl, program) {
-  var uniforms = {};
-  var uniformCount = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS);
-  var uniformName = '';
-  for (var i = 0; i < uniformCount; i++) {
-    var uniformInfo = gl.getActiveUniform(program, i);
-    uniformName = uniformInfo.name.replace('[0]', '');
-    uniforms[uniformName] = gl.getUniformLocation(program, uniformName);
-  }
-  return uniforms;
-};
-
-Util.orthoMatrix = function (out, left, right, bottom, top, near, far) {
-  var lr = 1 / (left - right),
-      bt = 1 / (bottom - top),
-      nf = 1 / (near - far);
-  out[0] = -2 * lr;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
-  out[5] = -2 * bt;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
-  out[10] = 2 * nf;
-  out[11] = 0;
-  out[12] = (left + right) * lr;
-  out[13] = (top + bottom) * bt;
-  out[14] = (far + near) * nf;
-  out[15] = 1;
-  return out;
-};
-
-Util.copyArray = function (source, dest) {
-  for (var i = 0, n = source.length; i < n; i++) {
-    dest[i] = source[i];
-  }
-};
-
-Util.isMobile = function() {
-  var check = false;
-  (function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);
-  return check;
-};
-
-Util.extend = function(dest, src) {
-  for (var key in src) {
-    if (src.hasOwnProperty(key)) {
-      dest[key] = src[key];
-    }
-  }
-
-  return dest;
-}
-
-Util.safariCssSizeWorkaround = function(canvas) {
-  // TODO(smus): Remove this workaround when Safari for iOS is fixed.
-  // iOS only workaround (for https://bugs.webkit.org/show_bug.cgi?id=152556).
-  //
-  // "To the last I grapple with thee;
-  //  from hell's heart I stab at thee;
-  //  for hate's sake I spit my last breath at thee."
-  // -- Moby Dick, by Herman Melville
-  if (Util.isIOS()) {
-    var width = canvas.style.width;
-    var height = canvas.style.height;
-    canvas.style.width = (parseInt(width) + 1) + 'px';
-    canvas.style.height = (parseInt(height)) + 'px';
-    setTimeout(function() {
-      canvas.style.width = width;
-      canvas.style.height = height;
-    }, 100);
-  }
-
-  // Debug only.
-  window.Util = Util;
-  window.canvas = canvas;
-};
-
-Util.isDebug = function() {
-  return Util.getQueryParameter('debug');
-};
-
-Util.getQueryParameter = function(name) {
-  var name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
-  var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
-      results = regex.exec(location.search);
-  return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
-};
-
-Util.frameDataFromPose = (function() {
-  var piOver180 = Math.PI / 180.0;
-  var rad45 = Math.PI * 0.25;
-
-  // Borrowed from glMatrix.
-  function mat4_perspectiveFromFieldOfView(out, fov, near, far) {
-    var upTan = Math.tan(fov ? (fov.upDegrees * piOver180) : rad45),
-    downTan = Math.tan(fov ? (fov.downDegrees * piOver180) : rad45),
-    leftTan = Math.tan(fov ? (fov.leftDegrees * piOver180) : rad45),
-    rightTan = Math.tan(fov ? (fov.rightDegrees * piOver180) : rad45),
-    xScale = 2.0 / (leftTan + rightTan),
-    yScale = 2.0 / (upTan + downTan);
-
-    out[0] = xScale;
-    out[1] = 0.0;
-    out[2] = 0.0;
-    out[3] = 0.0;
-    out[4] = 0.0;
-    out[5] = yScale;
-    out[6] = 0.0;
-    out[7] = 0.0;
-    out[8] = -((leftTan - rightTan) * xScale * 0.5);
-    out[9] = ((upTan - downTan) * yScale * 0.5);
-    out[10] = far / (near - far);
-    out[11] = -1.0;
-    out[12] = 0.0;
-    out[13] = 0.0;
-    out[14] = (far * near) / (near - far);
-    out[15] = 0.0;
-    return out;
-  }
-
-  function mat4_fromRotationTranslation(out, q, v) {
-    // Quaternion math
-    var x = q[0], y = q[1], z = q[2], w = q[3],
-        x2 = x + x,
-        y2 = y + y,
-        z2 = z + z,
-
-        xx = x * x2,
-        xy = x * y2,
-        xz = x * z2,
-        yy = y * y2,
-        yz = y * z2,
-        zz = z * z2,
-        wx = w * x2,
-        wy = w * y2,
-        wz = w * z2;
-
-    out[0] = 1 - (yy + zz);
-    out[1] = xy + wz;
-    out[2] = xz - wy;
-    out[3] = 0;
-    out[4] = xy - wz;
-    out[5] = 1 - (xx + zz);
-    out[6] = yz + wx;
-    out[7] = 0;
-    out[8] = xz + wy;
-    out[9] = yz - wx;
-    out[10] = 1 - (xx + yy);
-    out[11] = 0;
-    out[12] = v[0];
-    out[13] = v[1];
-    out[14] = v[2];
-    out[15] = 1;
-
-    return out;
-  };
-
-  function mat4_translate(out, a, v) {
-    var x = v[0], y = v[1], z = v[2],
-        a00, a01, a02, a03,
-        a10, a11, a12, a13,
-        a20, a21, a22, a23;
-
-    if (a === out) {
-      out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
-      out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
-      out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
-      out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
-    } else {
-      a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
-      a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
-      a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
-
-      out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;
-      out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;
-      out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;
-
-      out[12] = a00 * x + a10 * y + a20 * z + a[12];
-      out[13] = a01 * x + a11 * y + a21 * z + a[13];
-      out[14] = a02 * x + a12 * y + a22 * z + a[14];
-      out[15] = a03 * x + a13 * y + a23 * z + a[15];
-    }
-
-    return out;
-  };
-
-  function mat4_invert(out, a) {
-    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
-        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
-        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
-        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],
-
-        b00 = a00 * a11 - a01 * a10,
-        b01 = a00 * a12 - a02 * a10,
-        b02 = a00 * a13 - a03 * a10,
-        b03 = a01 * a12 - a02 * a11,
-        b04 = a01 * a13 - a03 * a11,
-        b05 = a02 * a13 - a03 * a12,
-        b06 = a20 * a31 - a21 * a30,
-        b07 = a20 * a32 - a22 * a30,
-        b08 = a20 * a33 - a23 * a30,
-        b09 = a21 * a32 - a22 * a31,
-        b10 = a21 * a33 - a23 * a31,
-        b11 = a22 * a33 - a23 * a32,
-
-        // Calculate the determinant
-        det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
-
-    if (!det) {
-      return null;
-    }
-    det = 1.0 / det;
-
-    out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
-    out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
-    out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
-    out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
-    out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
-    out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
-    out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
-    out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
-    out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
-    out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
-    out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
-    out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
-    out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
-    out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
-    out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
-    out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;
-
-    return out;
-  };
-
-  var defaultOrientation = new Float32Array([0, 0, 0, 1]);
-  var defaultPosition = new Float32Array([0, 0, 0]);
-
-  function updateEyeMatrices(projection, view, pose, parameters, vrDisplay) {
-    mat4_perspectiveFromFieldOfView(projection, parameters ? parameters.fieldOfView : null, vrDisplay.depthNear, vrDisplay.depthFar);
-
-    var orientation = pose.orientation || defaultOrientation;
-    var position = pose.position || defaultPosition;
-
-    mat4_fromRotationTranslation(view, orientation, position);
-    if (parameters)
-      mat4_translate(view, view, parameters.offset);
-    mat4_invert(view, view);
-  }
-
-  return function(frameData, pose, vrDisplay) {
-    if (!frameData || !pose)
-      return false;
-
-    frameData.pose = pose;
-    frameData.timestamp = pose.timestamp;
-
-    updateEyeMatrices(
-        frameData.leftProjectionMatrix, frameData.leftViewMatrix,
-        pose, vrDisplay.getEyeParameters("left"), vrDisplay);
-    updateEyeMatrices(
-        frameData.rightProjectionMatrix, frameData.rightViewMatrix,
-        pose, vrDisplay.getEyeParameters("right"), vrDisplay);
-
-    return true;
-  };
-})();
-
-Util.isInsideCrossDomainIFrame = function() {
-  var isFramed = (window.self !== window.top);
-  var refDomain = Util.getDomainFromUrl(document.referrer);
-  var thisDomain = Util.getDomainFromUrl(window.location.href);
-
-  return isFramed && (refDomain !== thisDomain);
-};
-
-// From http://stackoverflow.com/a/23945027.
-Util.getDomainFromUrl = function(url) {
-  var domain;
-  // Find & remove protocol (http, ftp, etc.) and get domain.
-  if (url.indexOf("://") > -1) {
-    domain = url.split('/')[2];
-  }
-  else {
-    domain = url.split('/')[0];
-  }
-
-  //find & remove port number
-  domain = domain.split(':')[0];
-
-  return domain;
-}
-
-module.exports = Util;
-
-},{}],68:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var DeviceInfo = _dereq_('./device-info.js');
-var Util = _dereq_('./util.js');
-
-var DEFAULT_VIEWER = 'CardboardV1';
-var VIEWER_KEY = 'WEBVR_CARDBOARD_VIEWER';
-var CLASS_NAME = 'webvr-polyfill-viewer-selector';
-
-/**
- * Creates a viewer selector with the options specified. Supports being shown
- * and hidden. Generates events when viewer parameters change. Also supports
- * saving the currently selected index in localStorage.
- */
-function ViewerSelector() {
-  // Try to load the selected key from local storage.
-  try {
-    this.selectedKey = localStorage.getItem(VIEWER_KEY);
-  } catch (error) {
-    console.error('Failed to load viewer profile: %s', error);
-  }
-
-  //If none exists, or if localstorage is unavailable, use the default key.
-  if (!this.selectedKey) {
-    this.selectedKey = DEFAULT_VIEWER;
-  }
-
-  this.dialog = this.createDialog_(DeviceInfo.Viewers);
-  this.root = null;
-  this.onChangeCallbacks_ = [];
-}
-
-ViewerSelector.prototype.show = function(root) {
-  this.root = root;
-
-  root.appendChild(this.dialog);
-
-  // Ensure the currently selected item is checked.
-  var selected = this.dialog.querySelector('#' + this.selectedKey);
-  selected.checked = true;
-
-  // Show the UI.
-  this.dialog.style.display = 'block';
-};
-
-ViewerSelector.prototype.hide = function() {
-  if (this.root && this.root.contains(this.dialog)) {
-    this.root.removeChild(this.dialog);
-  }
-  this.dialog.style.display = 'none';
-};
-
-ViewerSelector.prototype.getCurrentViewer = function() {
-  return DeviceInfo.Viewers[this.selectedKey];
-};
-
-ViewerSelector.prototype.getSelectedKey_ = function() {
-  var input = this.dialog.querySelector('input[name=field]:checked');
-  if (input) {
-    return input.id;
-  }
-  return null;
-};
-
-ViewerSelector.prototype.onChange = function(cb) {
-  this.onChangeCallbacks_.push(cb);
-};
-
-ViewerSelector.prototype.fireOnChange_ = function(viewer) {
-  for (var i = 0; i < this.onChangeCallbacks_.length; i++) {
-    this.onChangeCallbacks_[i](viewer);
-  }
-};
-
-ViewerSelector.prototype.onSave_ = function() {
-  this.selectedKey = this.getSelectedKey_();
-  if (!this.selectedKey || !DeviceInfo.Viewers[this.selectedKey]) {
-    console.error('ViewerSelector.onSave_: this should never happen!');
-    return;
-  }
-
-  this.fireOnChange_(DeviceInfo.Viewers[this.selectedKey]);
-
-  // Attempt to save the viewer profile, but fails in private mode.
-  try {
-    localStorage.setItem(VIEWER_KEY, this.selectedKey);
-  } catch(error) {
-    console.error('Failed to save viewer profile: %s', error);
-  }
-  this.hide();
-};
-
-/**
- * Creates the dialog.
- */
-ViewerSelector.prototype.createDialog_ = function(options) {
-  var container = document.createElement('div');
-  container.classList.add(CLASS_NAME);
-  container.style.display = 'none';
-  // Create an overlay that dims the background, and which goes away when you
-  // tap it.
-  var overlay = document.createElement('div');
-  var s = overlay.style;
-  s.position = 'fixed';
-  s.left = 0;
-  s.top = 0;
-  s.width = '100%';
-  s.height = '100%';
-  s.background = 'rgba(0, 0, 0, 0.3)';
-  overlay.addEventListener('click', this.hide.bind(this));
-
-  var width = 280;
-  var dialog = document.createElement('div');
-  var s = dialog.style;
-  s.boxSizing = 'border-box';
-  s.position = 'fixed';
-  s.top = '24px';
-  s.left = '50%';
-  s.marginLeft = (-width/2) + 'px';
-  s.width = width + 'px';
-  s.padding = '24px';
-  s.overflow = 'hidden';
-  s.background = '#fafafa';
-  s.fontFamily = "'Roboto', sans-serif";
-  s.boxShadow = '0px 5px 20px #666';
-
-  dialog.appendChild(this.createH1_('Select your viewer'));
-  for (var id in options) {
-    dialog.appendChild(this.createChoice_(id, options[id].label));
-  }
-  dialog.appendChild(this.createButton_('Save', this.onSave_.bind(this)));
-
-  container.appendChild(overlay);
-  container.appendChild(dialog);
-
-  return container;
-};
-
-ViewerSelector.prototype.createH1_ = function(name) {
-  var h1 = document.createElement('h1');
-  var s = h1.style;
-  s.color = 'black';
-  s.fontSize = '20px';
-  s.fontWeight = 'bold';
-  s.marginTop = 0;
-  s.marginBottom = '24px';
-  h1.innerHTML = name;
-  return h1;
-};
-
-ViewerSelector.prototype.createChoice_ = function(id, name) {
-  /*
-  <div class="choice">
-  <input id="v1" type="radio" name="field" value="v1">
-  <label for="v1">Cardboard V1</label>
-  </div>
-  */
-  var div = document.createElement('div');
-  div.style.marginTop = '8px';
-  div.style.color = 'black';
-
-  var input = document.createElement('input');
-  input.style.fontSize = '30px';
-  input.setAttribute('id', id);
-  input.setAttribute('type', 'radio');
-  input.setAttribute('value', id);
-  input.setAttribute('name', 'field');
-
-  var label = document.createElement('label');
-  label.style.marginLeft = '4px';
-  label.setAttribute('for', id);
-  label.innerHTML = name;
-
-  div.appendChild(input);
-  div.appendChild(label);
-
-  return div;
-};
-
-ViewerSelector.prototype.createButton_ = function(label, onclick) {
-  var button = document.createElement('button');
-  button.innerHTML = label;
-  var s = button.style;
-  s.float = 'right';
-  s.textTransform = 'uppercase';
-  s.color = '#1094f7';
-  s.fontSize = '14px';
-  s.letterSpacing = 0;
-  s.border = 0;
-  s.background = 'none';
-  s.marginTop = '16px';
-
-  button.addEventListener('click', onclick);
-
-  return button;
-};
-
-module.exports = ViewerSelector;
-
-},{"./device-info.js":52,"./util.js":67}],69:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = _dereq_('./util.js');
-
-/**
- * Android and iOS compatible wakelock implementation.
- *
- * Refactored thanks to dkovalev@.
- */
-function AndroidWakeLock() {
-  var video = document.createElement('video');
-  video.setAttribute('loop', '');
-
-  function addSourceToVideo(element, type, dataURI) {
-    var source = document.createElement('source');
-    source.src = dataURI;
-    source.type = 'video/' + type;
-    element.appendChild(source);
-  }
-
-  addSourceToVideo(video,'webm', Util.base64('video/webm', 'GkXfo0AgQoaBAUL3gQFC8oEEQvOBCEKCQAR3ZWJtQoeBAkKFgQIYU4BnQI0VSalmQCgq17FAAw9CQE2AQAZ3aGFtbXlXQUAGd2hhbW15RIlACECPQAAAAAAAFlSua0AxrkAu14EBY8WBAZyBACK1nEADdW5khkAFVl9WUDglhohAA1ZQOIOBAeBABrCBCLqBCB9DtnVAIueBAKNAHIEAAIAwAQCdASoIAAgAAUAmJaQAA3AA/vz0AAA='));
-  addSourceToVideo(video, 'mp4', Util.base64('video/mp4', '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'));
-
-  this.request = function() {
-    if (video.paused) {
-      video.play();
-    }
-  };
-
-  this.release = function() {
-    video.pause();
-  };
-}
-
-function iOSWakeLock() {
-  var timer = null;
-
-  this.request = function() {
-    if (!timer) {
-      timer = setInterval(function() {
-        window.location = window.location;
-        setTimeout(window.stop, 0);
-      }, 30000);
-    }
-  }
-
-  this.release = function() {
-    if (timer) {
-      clearInterval(timer);
-      timer = null;
-    }
-  }
-}
-
-
-function getWakeLock() {
-  var userAgent = navigator.userAgent || navigator.vendor || window.opera;
-  if (userAgent.match(/iPhone/i) || userAgent.match(/iPod/i)) {
-    return iOSWakeLock;
-  } else {
-    return AndroidWakeLock;
-  }
-}
-
-module.exports = getWakeLock();
-},{"./util.js":67}],70:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = _dereq_('./util.js');
-var CardboardVRDisplay = _dereq_('./cardboard-vr-display.js');
-var MouseKeyboardVRDisplay = _dereq_('./mouse-keyboard-vr-display.js');
-// Uncomment to add positional tracking via webcam.
-//var WebcamPositionSensorVRDevice = require('./webcam-position-sensor-vr-device.js');
-var VRDisplay = _dereq_('./base.js').VRDisplay;
-var VRFrameData = _dereq_('./base.js').VRFrameData;
-var HMDVRDevice = _dereq_('./base.js').HMDVRDevice;
-var PositionSensorVRDevice = _dereq_('./base.js').PositionSensorVRDevice;
-var VRDisplayHMDDevice = _dereq_('./display-wrappers.js').VRDisplayHMDDevice;
-var VRDisplayPositionSensorDevice = _dereq_('./display-wrappers.js').VRDisplayPositionSensorDevice;
-var version = _dereq_('../package.json').version;
-
-function WebVRPolyfill() {
-  this.displays = [];
-  this.devices = []; // For deprecated objects
-  this.devicesPopulated = false;
-  this.nativeWebVRAvailable = this.isWebVRAvailable();
-  this.nativeLegacyWebVRAvailable = this.isDeprecatedWebVRAvailable();
-  this.nativeGetVRDisplaysFunc = this.nativeWebVRAvailable ?
-                                 navigator.getVRDisplays :
-                                 null;
-
-  if (!this.nativeLegacyWebVRAvailable && !this.nativeWebVRAvailable) {
-    this.enablePolyfill();
-    if (window.WebVRConfig.ENABLE_DEPRECATED_API) {
-      this.enableDeprecatedPolyfill();
-    }
-  }
-
-  // Put a shim in place to update the API to 1.1 if needed.
-  InstallWebVRSpecShim();
-}
-
-WebVRPolyfill.prototype.isWebVRAvailable = function() {
-  return ('getVRDisplays' in navigator);
-};
-
-WebVRPolyfill.prototype.isDeprecatedWebVRAvailable = function() {
-  return ('getVRDevices' in navigator) || ('mozGetVRDevices' in navigator);
-};
-
-WebVRPolyfill.prototype.connectDisplay = function(vrDisplay) {
-  vrDisplay.fireVRDisplayConnect_();
-  this.displays.push(vrDisplay);
-};
-
-WebVRPolyfill.prototype.populateDevices = function() {
-  if (this.devicesPopulated) {
-    return;
-  }
-
-  // Initialize our virtual VR devices.
-  var vrDisplay = null;
-
-  // Add a Cardboard VRDisplay on compatible mobile devices
-  if (this.isCardboardCompatible()) {
-    vrDisplay = new CardboardVRDisplay();
-
-    this.connectDisplay(vrDisplay);
-
-    // For backwards compatibility
-    if (window.WebVRConfig.ENABLE_DEPRECATED_API) {
-      this.devices.push(new VRDisplayHMDDevice(vrDisplay));
-      this.devices.push(new VRDisplayPositionSensorDevice(vrDisplay));
-    }
-  }
-
-  // Add a Mouse and Keyboard driven VRDisplay for desktops/laptops
-  if (!this.isMobile() && !window.WebVRConfig.MOUSE_KEYBOARD_CONTROLS_DISABLED) {
-    vrDisplay = new MouseKeyboardVRDisplay();
-    this.connectDisplay(vrDisplay);
-
-    // For backwards compatibility
-    if (window.WebVRConfig.ENABLE_DEPRECATED_API) {
-      this.devices.push(new VRDisplayHMDDevice(vrDisplay));
-      this.devices.push(new VRDisplayPositionSensorDevice(vrDisplay));
-    }
-  }
-
-  // Uncomment to add positional tracking via webcam.
-  //if (!this.isMobile() && window.WebVRConfig.ENABLE_DEPRECATED_API) {
-  //  positionDevice = new WebcamPositionSensorVRDevice();
-  //  this.devices.push(positionDevice);
-  //}
-
-  this.devicesPopulated = true;
-};
-
-WebVRPolyfill.prototype.enablePolyfill = function() {
-  // Provide navigator.getVRDisplays.
-  navigator.getVRDisplays = this.getVRDisplays.bind(this);
-
-  // Polyfill native VRDisplay.getFrameData
-  if (this.nativeWebVRAvailable && window.VRFrameData) {
-    var NativeVRFrameData = window.VRFrameData;
-    var nativeFrameData = new window.VRFrameData();
-    var nativeGetFrameData = window.VRDisplay.prototype.getFrameData;
-    window.VRFrameData = VRFrameData;
-
-    window.VRDisplay.prototype.getFrameData = function(frameData) {
-      if (frameData instanceof NativeVRFrameData) {
-        nativeGetFrameData.call(this, frameData);
-        return;
-      }
-
-      /*
-      Copy frame data from the native object into the polyfilled object.
-      */
-
-      nativeGetFrameData.call(this, nativeFrameData);
-      frameData.pose = nativeFrameData.pose;
-      Util.copyArray(nativeFrameData.leftProjectionMatrix, frameData.leftProjectionMatrix);
-      Util.copyArray(nativeFrameData.rightProjectionMatrix, frameData.rightProjectionMatrix);
-      Util.copyArray(nativeFrameData.leftViewMatrix, frameData.leftViewMatrix);
-      Util.copyArray(nativeFrameData.rightViewMatrix, frameData.rightViewMatrix);
-      //todo: copy
-    };
-  }
-
-  // Provide the `VRDisplay` object.
-  window.VRDisplay = VRDisplay;
-
-  // Provide the `navigator.vrEnabled` property.
-  if (navigator && typeof navigator.vrEnabled === 'undefined') {
-    var self = this;
-    Object.defineProperty(navigator, 'vrEnabled', {
-      get: function () {
-        return self.isCardboardCompatible() &&
-            (self.isFullScreenAvailable() || Util.isIOS());
-      }
-    });
-  }
-
-  if (!('VRFrameData' in window)) {
-    // Provide the VRFrameData object.
-    window.VRFrameData = VRFrameData;
-  }
-};
-
-WebVRPolyfill.prototype.enableDeprecatedPolyfill = function() {
-  // Provide navigator.getVRDevices.
-  navigator.getVRDevices = this.getVRDevices.bind(this);
-
-  // Provide the CardboardHMDVRDevice and PositionSensorVRDevice objects.
-  window.HMDVRDevice = HMDVRDevice;
-  window.PositionSensorVRDevice = PositionSensorVRDevice;
-};
-
-WebVRPolyfill.prototype.getVRDisplays = function() {
-  this.populateDevices();
-  var polyfillDisplays = this.displays;
-
-  if (!this.nativeWebVRAvailable) {
-    return Promise.resolve(polyfillDisplays);
-  }
-
-  // Set up a race condition if this browser has a bug where
-  // `navigator.getVRDisplays()` never resolves.
-  var timeoutId;
-  var vrDisplaysNative = this.nativeGetVRDisplaysFunc.call(navigator);
-  var timeoutPromise = new Promise(function(resolve) {
-    timeoutId = setTimeout(function() {
-      console.warn('Native WebVR implementation detected, but `getVRDisplays()` failed to resolve. Falling back to polyfill.');
-      resolve([]);
-    }, window.WebVRConfig.GET_VR_DISPLAYS_TIMEOUT);
-  });
-
-  return Util.race([
-    vrDisplaysNative,
-    timeoutPromise
-  ]).then(function(nativeDisplays) {
-    clearTimeout(timeoutId);
-    if (window.WebVRConfig.ALWAYS_APPEND_POLYFILL_DISPLAY) {
-      return nativeDisplays.concat(polyfillDisplays);
-    } else {
-      return nativeDisplays.length > 0 ? nativeDisplays : polyfillDisplays;
-    }
-  });
-};
-
-WebVRPolyfill.prototype.getVRDevices = function() {
-  console.warn('getVRDevices is deprecated. Please update your code to use getVRDisplays instead.');
-  var self = this;
-  return new Promise(function(resolve, reject) {
-    try {
-      if (!self.devicesPopulated) {
-        if (self.nativeWebVRAvailable) {
-          return navigator.getVRDisplays(function(displays) {
-            for (var i = 0; i < displays.length; ++i) {
-              self.devices.push(new VRDisplayHMDDevice(displays[i]));
-              self.devices.push(new VRDisplayPositionSensorDevice(displays[i]));
-            }
-            self.devicesPopulated = true;
-            resolve(self.devices);
-          }, reject);
-        }
-
-        if (self.nativeLegacyWebVRAvailable) {
-          return (navigator.getVRDDevices || navigator.mozGetVRDevices)(function(devices) {
-            for (var i = 0; i < devices.length; ++i) {
-              if (devices[i] instanceof HMDVRDevice) {
-                self.devices.push(devices[i]);
-              }
-              if (devices[i] instanceof PositionSensorVRDevice) {
-                self.devices.push(devices[i]);
-              }
-            }
-            self.devicesPopulated = true;
-            resolve(self.devices);
-          }, reject);
-        }
-      }
-
-      self.populateDevices();
-      resolve(self.devices);
-    } catch (e) {
-      reject(e);
-    }
-  });
-};
-
-WebVRPolyfill.prototype.NativeVRFrameData = window.VRFrameData;
-
-/**
- * Determine if a device is mobile.
- */
-WebVRPolyfill.prototype.isMobile = function() {
-  return /Android/i.test(navigator.userAgent) ||
-      /iPhone|iPad|iPod/i.test(navigator.userAgent);
-};
-
-WebVRPolyfill.prototype.isCardboardCompatible = function() {
-  // For now, support all iOS and Android devices.
-  // Also enable the WebVRConfig.FORCE_VR flag for debugging.
-  return this.isMobile() || window.WebVRConfig.FORCE_ENABLE_VR;
-};
-
-WebVRPolyfill.prototype.isFullScreenAvailable = function() {
-  return (document.fullscreenEnabled ||
-          document.mozFullScreenEnabled ||
-          document.webkitFullscreenEnabled ||
-          false);
-};
-
-// Installs a shim that updates a WebVR 1.0 spec implementation to WebVR 1.1
-function InstallWebVRSpecShim() {
-  if ('VRDisplay' in window && !('VRFrameData' in window)) {
-    // Provide the VRFrameData object.
-    window.VRFrameData = VRFrameData;
-
-    // A lot of Chrome builds don't have depthNear and depthFar, even
-    // though they're in the WebVR 1.0 spec. Patch them in if they're not present.
-    if(!('depthNear' in window.VRDisplay.prototype)) {
-      window.VRDisplay.prototype.depthNear = 0.01;
-    }
-
-    if(!('depthFar' in window.VRDisplay.prototype)) {
-      window.VRDisplay.prototype.depthFar = 10000.0;
-    }
-
-    window.VRDisplay.prototype.getFrameData = function(frameData) {
-      return Util.frameDataFromPose(frameData, this.getPose(), this);
-    }
-  }
-};
-
-WebVRPolyfill.InstallWebVRSpecShim = InstallWebVRSpecShim;
-WebVRPolyfill.version = version;
-
-module.exports.WebVRPolyfill = WebVRPolyfill;
-
-},{"../package.json":46,"./base.js":47,"./cardboard-vr-display.js":50,"./display-wrappers.js":53,"./mouse-keyboard-vr-display.js":59,"./util.js":67}],71:[function(_dereq_,module,exports){
-var newline = /\n/
-var newlineChar = '\n'
-var whitespace = /\s/
-
-module.exports = function(text, opt) {
-    var lines = module.exports.lines(text, opt)
-    return lines.map(function(line) {
-        return text.substring(line.start, line.end)
-    }).join('\n')
-}
-
-module.exports.lines = function wordwrap(text, opt) {
-    opt = opt||{}
-
-    //zero width results in nothing visible
-    if (opt.width === 0 && opt.mode !== 'nowrap') 
-        return []
-
-    text = text||''
-    var width = typeof opt.width === 'number' ? opt.width : Number.MAX_VALUE
-    var start = Math.max(0, opt.start||0)
-    var end = typeof opt.end === 'number' ? opt.end : text.length
-    var mode = opt.mode
-
-    var measure = opt.measure || monospace
-    if (mode === 'pre')
-        return pre(measure, text, start, end, width)
-    else
-        return greedy(measure, text, start, end, width, mode)
-}
-
-function idxOf(text, chr, start, end) {
-    var idx = text.indexOf(chr, start)
-    if (idx === -1 || idx > end)
-        return end
-    return idx
-}
-
-function isWhitespace(chr) {
-    return whitespace.test(chr)
-}
-
-function pre(measure, text, start, end, width) {
-    var lines = []
-    var lineStart = start
-    for (var i=start; i<end && i<text.length; i++) {
-        var chr = text.charAt(i)
-        var isNewline = newline.test(chr)
-
-        //If we've reached a newline, then step down a line
-        //Or if we've reached the EOF
-        if (isNewline || i===end-1) {
-            var lineEnd = isNewline ? i : i+1
-            var measured = measure(text, lineStart, lineEnd, width)
-            lines.push(measured)
-            
-            lineStart = i+1
-        }
-    }
-    return lines
-}
-
-function greedy(measure, text, start, end, width, mode) {
-    //A greedy word wrapper based on LibGDX algorithm
-    //https://github.com/libgdx/libgdx/blob/master/gdx/src/com/badlogic/gdx/graphics/g2d/BitmapFontCache.java
-    var lines = []
-
-    var testWidth = width
-    //if 'nowrap' is specified, we only wrap on newline chars
-    if (mode === 'nowrap')
-        testWidth = Number.MAX_VALUE
-
-    while (start < end && start < text.length) {
-        //get next newline position
-        var newLine = idxOf(text, newlineChar, start, end)
-
-        //eat whitespace at start of line
-        while (start < newLine) {
-            if (!isWhitespace( text.charAt(start) ))
-                break
-            start++
-        }
-
-        //determine visible # of glyphs for the available width
-        var measured = measure(text, start, newLine, testWidth)
-
-        var lineEnd = start + (measured.end-measured.start)
-        var nextStart = lineEnd + newlineChar.length
-
-        //if we had to cut the line before the next newline...
-        if (lineEnd < newLine) {
-            //find char to break on
-            while (lineEnd > start) {
-                if (isWhitespace(text.charAt(lineEnd)))
-                    break
-                lineEnd--
-            }
-            if (lineEnd === start) {
-                if (nextStart > start + newlineChar.length) nextStart--
-                lineEnd = nextStart // If no characters to break, show all.
-            } else {
-                nextStart = lineEnd
-                //eat whitespace at end of line
-                while (lineEnd > start) {
-                    if (!isWhitespace(text.charAt(lineEnd - newlineChar.length)))
-                        break
-                    lineEnd--
-                }
-            }
-        }
-        if (lineEnd >= start) {
-            var result = measure(text, start, lineEnd, testWidth)
-            lines.push(result)
-        }
-        start = nextStart
-    }
-    return lines
-}
-
-//determines the visible number of glyphs within a given width
-function monospace(text, start, end, width) {
-    var glyphs = Math.min(width, end-start)
-    return {
-        start: start,
-        end: start+glyphs
-    }
-}
-},{}],72:[function(_dereq_,module,exports){
-"use strict";
-var window = _dereq_("global/window")
-var isFunction = _dereq_("is-function")
-var parseHeaders = _dereq_("parse-headers")
-var xtend = _dereq_("xtend")
-
-module.exports = createXHR
-createXHR.XMLHttpRequest = window.XMLHttpRequest || noop
-createXHR.XDomainRequest = "withCredentials" in (new createXHR.XMLHttpRequest()) ? createXHR.XMLHttpRequest : window.XDomainRequest
-
-forEachArray(["get", "put", "post", "patch", "head", "delete"], function(method) {
-    createXHR[method === "delete" ? "del" : method] = function(uri, options, callback) {
-        options = initParams(uri, options, callback)
-        options.method = method.toUpperCase()
-        return _createXHR(options)
-    }
-})
-
-function forEachArray(array, iterator) {
-    for (var i = 0; i < array.length; i++) {
-        iterator(array[i])
-    }
-}
-
-function isEmpty(obj){
-    for(var i in obj){
-        if(obj.hasOwnProperty(i)) return false
-    }
-    return true
-}
-
-function initParams(uri, options, callback) {
-    var params = uri
-
-    if (isFunction(options)) {
-        callback = options
-        if (typeof uri === "string") {
-            params = {uri:uri}
-        }
-    } else {
-        params = xtend(options, {uri: uri})
-    }
-
-    params.callback = callback
-    return params
-}
-
-function createXHR(uri, options, callback) {
-    options = initParams(uri, options, callback)
-    return _createXHR(options)
-}
-
-function _createXHR(options) {
-    if(typeof options.callback === "undefined"){
-        throw new Error("callback argument missing")
-    }
-
-    var called = false
-    var callback = function cbOnce(err, response, body){
-        if(!called){
-            called = true
-            options.callback(err, response, body)
-        }
-    }
-
-    function readystatechange() {
-        if (xhr.readyState === 4) {
-            setTimeout(loadFunc, 0)
-        }
-    }
-
-    function getBody() {
-        // Chrome with requestType=blob throws errors arround when even testing access to responseText
-        var body = undefined
-
-        if (xhr.response) {
-            body = xhr.response
-        } else {
-            body = xhr.responseText || getXml(xhr)
-        }
-
-        if (isJson) {
-            try {
-                body = JSON.parse(body)
-            } catch (e) {}
-        }
-
-        return body
-    }
-
-    function errorFunc(evt) {
-        clearTimeout(timeoutTimer)
-        if(!(evt instanceof Error)){
-            evt = new Error("" + (evt || "Unknown XMLHttpRequest Error") )
-        }
-        evt.statusCode = 0
-        return callback(evt, failureResponse)
-    }
-
-    // will load the data & process the response in a special response object
-    function loadFunc() {
-        if (aborted) return
-        var status
-        clearTimeout(timeoutTimer)
-        if(options.useXDR && xhr.status===undefined) {
-            //IE8 CORS GET successful response doesn't have a status field, but body is fine
-            status = 200
-        } else {
-            status = (xhr.status === 1223 ? 204 : xhr.status)
-        }
-        var response = failureResponse
-        var err = null
-
-        if (status !== 0){
-            response = {
-                body: getBody(),
-                statusCode: status,
-                method: method,
-                headers: {},
-                url: uri,
-                rawRequest: xhr
-            }
-            if(xhr.getAllResponseHeaders){ //remember xhr can in fact be XDR for CORS in IE
-                response.headers = parseHeaders(xhr.getAllResponseHeaders())
-            }
-        } else {
-            err = new Error("Internal XMLHttpRequest Error")
-        }
-        return callback(err, response, response.body)
-    }
-
-    var xhr = options.xhr || null
-
-    if (!xhr) {
-        if (options.cors || options.useXDR) {
-            xhr = new createXHR.XDomainRequest()
-        }else{
-            xhr = new createXHR.XMLHttpRequest()
-        }
-    }
-
-    var key
-    var aborted
-    var uri = xhr.url = options.uri || options.url
-    var method = xhr.method = options.method || "GET"
-    var body = options.body || options.data
-    var headers = xhr.headers = options.headers || {}
-    var sync = !!options.sync
-    var isJson = false
-    var timeoutTimer
-    var failureResponse = {
-        body: undefined,
-        headers: {},
-        statusCode: 0,
-        method: method,
-        url: uri,
-        rawRequest: xhr
-    }
-
-    if ("json" in options && options.json !== false) {
-        isJson = true
-        headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json") //Don't override existing accept header declared by user
-        if (method !== "GET" && method !== "HEAD") {
-            headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json") //Don't override existing accept header declared by user
-            body = JSON.stringify(options.json === true ? body : options.json)
-        }
-    }
-
-    xhr.onreadystatechange = readystatechange
-    xhr.onload = loadFunc
-    xhr.onerror = errorFunc
-    // IE9 must have onprogress be set to a unique function.
-    xhr.onprogress = function () {
-        // IE must die
-    }
-    xhr.onabort = function(){
-        aborted = true;
-    }
-    xhr.ontimeout = errorFunc
-    xhr.open(method, uri, !sync, options.username, options.password)
-    //has to be after open
-    if(!sync) {
-        xhr.withCredentials = !!options.withCredentials
-    }
-    // Cannot set timeout with sync request
-    // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
-    // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
-    if (!sync && options.timeout > 0 ) {
-        timeoutTimer = setTimeout(function(){
-            if (aborted) return
-            aborted = true//IE9 may still call readystatechange
-            xhr.abort("timeout")
-            var e = new Error("XMLHttpRequest timeout")
-            e.code = "ETIMEDOUT"
-            errorFunc(e)
-        }, options.timeout )
-    }
-
-    if (xhr.setRequestHeader) {
-        for(key in headers){
-            if(headers.hasOwnProperty(key)){
-                xhr.setRequestHeader(key, headers[key])
-            }
-        }
-    } else if (options.headers && !isEmpty(options.headers)) {
-        throw new Error("Headers cannot be set on an XDomainRequest object")
-    }
-
-    if ("responseType" in options) {
-        xhr.responseType = options.responseType
-    }
-
-    if ("beforeSend" in options &&
-        typeof options.beforeSend === "function"
-    ) {
-        options.beforeSend(xhr)
-    }
-
-    // Microsoft Edge browser sends "undefined" when send is called with undefined value.
-    // XMLHttpRequest spec says to pass null as body to indicate no body
-    // See https://github.com/naugtur/xhr/issues/100.
-    xhr.send(body || null)
-
-    return xhr
-
-
-}
-
-function getXml(xhr) {
-    // xhr.responseXML will throw Exception "InvalidStateError" or "DOMException"
-    // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.
-    try {
-        if (xhr.responseType === "document") {
-            return xhr.responseXML
-        }
-        var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror"
-        if (xhr.responseType === "" && !firefoxBugTakenEffect) {
-            return xhr.responseXML
-        }
-    } catch (e) {}
-
-    return null
-}
-
-function noop() {}
-
-},{"global/window":17,"is-function":21,"parse-headers":31,"xtend":74}],73:[function(_dereq_,module,exports){
-module.exports = (function xmlparser() {
-  //common browsers
-  if (typeof self.DOMParser !== 'undefined') {
-    return function(str) {
-      var parser = new self.DOMParser()
-      return parser.parseFromString(str, 'application/xml')
-    }
-  } 
-
-  //IE8 fallback
-  if (typeof self.ActiveXObject !== 'undefined'
-      && new self.ActiveXObject('Microsoft.XMLDOM')) {
-    return function(str) {
-      var xmlDoc = new self.ActiveXObject("Microsoft.XMLDOM")
-      xmlDoc.async = "false"
-      xmlDoc.loadXML(str)
-      return xmlDoc
-    }
-  }
-
-  //last resort fallback
-  return function(str) {
-    var div = document.createElement('div')
-    div.innerHTML = str
-    return div
-  }
-})()
-
-},{}],74:[function(_dereq_,module,exports){
-module.exports = extend
-
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-
-function extend() {
-    var target = {}
-
-    for (var i = 0; i < arguments.length; i++) {
-        var source = arguments[i]
-
-        for (var key in source) {
-            if (hasOwnProperty.call(source, key)) {
-                target[key] = source[key]
-            }
-        }
-    }
-
-    return target
-}
-
-},{}],75:[function(_dereq_,module,exports){
-module.exports={
-  "name": "aframe",
-  "version": "0.7.0",
-  "description": "A web framework for building virtual reality experiences.",
-  "homepage": "https://aframe.io/",
-  "main": "dist/aframe-master.js",
-  "scripts": {
-    "browserify": "browserify src/index.js -s 'AFRAME' -p browserify-derequire",
-    "build": "shx mkdir -p build/ && npm run browserify -- --debug -t [envify --INSPECTOR_VERSION dev] -o build/aframe.js",
-    "codecov": "codecov",
-    "dev": "npm run build && cross-env INSPECTOR_VERSION=dev node ./scripts/budo -t envify",
-    "dist": "node scripts/updateVersionLog.js && npm run dist:min && npm run dist:max",
-    "dist:max": "npm run browserify -s -- --debug | exorcist dist/aframe-master.js.map > dist/aframe-master.js",
-    "dist:min": "npm run browserify -s -- --debug -p [minifyify --map aframe-master.min.js.map --output dist/aframe-master.min.js.map] -o dist/aframe-master.min.js",
-    "docs": "markserv --dir docs --port 9001",
-    "preghpages": "node ./scripts/preghpages.js",
-    "ghpages": "ghpages -p gh-pages/",
-    "lint": "semistandard -v | snazzy",
-    "lint:fix": "semistandard --fix",
-    "precommit": "npm run lint",
-    "prepush": "node scripts/testOnlyCheck.js",
-    "prerelease": "node scripts/release.js 0.6.1 0.7.0",
-    "start": "npm run dev",
-    "test": "karma start ./tests/karma.conf.js",
-    "test:docs": "node scripts/docsLint.js",
-    "test:firefox": "npm test -- --browsers Firefox",
-    "test:chrome": "npm test -- --browsers Chrome",
-    "test:node": "mocha --ui tdd tests/node"
-  },
-  "repository": "aframevr/aframe",
-  "license": "MIT",
-  "dependencies": {
-    "@tweenjs/tween.js": "^16.8.0",
-    "browserify-css": "^0.8.2",
-    "debug": "ngokevin/debug#noTimestamp",
-    "deep-assign": "^2.0.0",
-    "document-register-element": "dmarcos/document-register-element#8ccc532b7",
-    "envify": "^3.4.1",
-    "load-bmfont": "^1.2.3",
-    "object-assign": "^4.0.1",
-    "present": "0.0.6",
-    "promise-polyfill": "^3.1.0",
-    "style-attr": "^1.0.2",
-    "three": "github:brianpeiris/three.js#r90-culling-fix-built",
-    "three-bmfont-text": "^2.1.0",
-    "webvr-polyfill": "^0.9.40"
-  },
-  "devDependencies": {
-    "browserify": "^13.1.0",
-    "browserify-derequire": "^0.9.4",
-    "browserify-istanbul": "^2.0.0",
-    "budo": "^9.2.0",
-    "chai": "^3.5.0",
-    "chai-shallow-deep-equal": "^1.4.0",
-    "chalk": "^1.1.3",
-    "codecov": "^1.0.1",
-    "cross-env": "^5.0.1",
-    "exorcist": "^0.4.0",
-    "ghpages": "0.0.8",
-    "git-rev": "^0.2.1",
-    "glob": "^7.1.1",
-    "husky": "^0.11.7",
-    "istanbul": "^0.4.5",
-    "jsdom": "^9.11.0",
-    "karma": "1.4.1",
-    "karma-browserify": "^5.1.0",
-    "karma-chai-shallow-deep-equal": "0.0.4",
-    "karma-chrome-launcher": "^2.0.0",
-    "karma-coverage": "^1.1.1",
-    "karma-env-preprocessor": "^0.1.1",
-    "karma-firefox-launcher": "^1.0.0",
-    "karma-mocha": "^1.1.1",
-    "karma-mocha-reporter": "^2.1.0",
-    "karma-sinon-chai": "1.2.4",
-    "lolex": "^1.5.1",
-    "markserv": "github:sukima/markserv#feature/fix-broken-websoketio-link",
-    "minifyify": "^7.3.3",
-    "mocha": "^3.0.2",
-    "mozilla-download": "^1.1.1",
-    "replace-in-file": "^2.5.3",
-    "semistandard": "^9.0.0",
-    "shelljs": "^0.7.7",
-    "shx": "^0.2.2",
-    "sinon": "^1.17.5",
-    "sinon-chai": "2.8.0",
-    "snazzy": "^5.0.0",
-    "too-wordy": "ngokevin/too-wordy",
-    "uglifyjs": "^2.4.10",
-    "write-good": "^0.9.1"
-  },
-  "link": true,
-  "browserify": {
-    "transform": [
-      "browserify-css",
-      "envify"
-    ]
-  },
-  "semistandard": {
-    "ignore": [
-      "build/**",
-      "dist/**",
-      "examples/**/shaders/*.js",
-      "**/vendor/**"
-    ]
-  },
-  "keywords": [
-    "3d",
-    "aframe",
-    "cardboard",
-    "components",
-    "oculus",
-    "three",
-    "three.js",
-    "rift",
-    "vive",
-    "vr",
-    "web-components",
-    "webvr"
-  ],
-  "browserify-css": {
-    "minify": true
-  },
-  "engines": {
-    "node": ">= 4.6.0",
-    "npm": "^2.15.9"
-  }
-}
-
-},{}],76:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-
-/**
- * Camera component.
- * Pairs along with camera system to handle tracking the active camera.
- */
-module.exports.Component = registerComponent('camera', {
-  schema: {
-    active: {default: true},
-    far: {default: 10000},
-    fov: {default: 80, min: 0},
-    near: {default: 0.005, min: 0},
-    spectator: {default: false},
-    zoom: {default: 1, min: 0}
-  },
-
-  /**
-   * Initialize three.js camera and add it to the entity.
-   * Add reference from scene to this entity as the camera.
-   */
-  init: function () {
-    var camera;
-    var el = this.el;
-
-    // Create camera.
-    camera = this.camera = new THREE.PerspectiveCamera();
-    el.setObject3D('camera', camera);
-  },
-
-  /**
-   * Update three.js camera.
-   */
-  update: function (oldData) {
-    var data = this.data;
-    var camera = this.camera;
-
-    // Update properties.
-    camera.aspect = data.aspect || (window.innerWidth / window.innerHeight);
-    camera.far = data.far;
-    camera.fov = data.fov;
-    camera.near = data.near;
-    camera.zoom = data.zoom;
-    camera.updateProjectionMatrix();
-
-    this.updateActiveCamera(oldData);
-    this.updateSpectatorCamera(oldData);
-  },
-
-  updateActiveCamera: function (oldData) {
-    var data = this.data;
-    var el = this.el;
-    var system = this.system;
-    // Active property did not change.
-    if (oldData && oldData.active === data.active || data.spectator) { return; }
-
-    // If `active` property changes, or first update, handle active camera with system.
-    if (data.active && system.activeCameraEl !== el) {
-      // Camera enabled. Set camera to this camera.
-      system.setActiveCamera(el);
-    } else if (!data.active && system.activeCameraEl === el) {
-      // Camera disabled. Set camera to another camera.
-      system.disableActiveCamera();
-    }
-  },
-
-  updateSpectatorCamera: function (oldData) {
-    var data = this.data;
-    var el = this.el;
-    var system = this.system;
-    // spectator property did not change.
-    if (oldData && oldData.spectator === data.spectator) { return; }
-
-    // If `spectator` property changes, or first update, handle spectator camera with system.
-    if (data.spectator && system.spectatorCameraEl !== el) {
-      // Camera enabled. Set camera to this camera.
-      system.setSpectatorCamera(el);
-    } else if (!data.spectator && system.spectatorCameraEl === el) {
-      // Camera disabled. Set camera to another camera.
-      system.disableSpectatorCamera();
-    }
-  },
-
-  /**
-   * Remove camera on remove (callback).
-   */
-  remove: function () {
-    this.el.removeObject3D('camera');
-  }
-});
-
-},{"../core/component":125,"../lib/three":173}],77:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-
-module.exports.Component = registerComponent('collada-model', {
-  schema: {type: 'asset'},
-
-  init: function () {
-    this.model = null;
-    this.loader = new THREE.ColladaLoader();
-    this.loader.options.convertUpAxis = true;
-  },
-
-  update: function () {
-    var self = this;
-    var el = this.el;
-    var src = this.data;
-
-    if (!src) { return; }
-
-    this.remove();
-
-    this.loader.load(src, function (colladaModel) {
-      self.model = colladaModel.scene;
-      el.setObject3D('mesh', self.model);
-      el.emit('model-loaded', {format: 'collada', model: self.model});
-    });
-  },
-
-  remove: function () {
-    if (!this.model) { return; }
-    this.el.removeObject3D('mesh');
-  }
-});
-
-},{"../core/component":125,"../lib/three":173}],78:[function(_dereq_,module,exports){
-/* global THREE */
-var registerComponent = _dereq_('../core/component').registerComponent;
-var utils = _dereq_('../utils/');
-
-var bind = utils.bind;
-
-var EVENTS = {
-  CLICK: 'click',
-  FUSING: 'fusing',
-  MOUSEENTER: 'mouseenter',
-  MOUSEDOWN: 'mousedown',
-  MOUSELEAVE: 'mouseleave',
-  MOUSEUP: 'mouseup'
-};
-
-var STATES = {
-  FUSING: 'cursor-fusing',
-  HOVERING: 'cursor-hovering',
-  HOVERED: 'cursor-hovered'
-};
-
-var CANVAS_EVENTS = {
-  DOWN: ['mousedown', 'touchstart'],
-  UP: ['mouseup', 'touchend']
-};
-
-/**
- * Cursor component. Applies the raycaster component specifically for starting the raycaster
- * from the camera and pointing from camera's facing direction, and then only returning the
- * closest intersection. Cursor can be fine-tuned by setting raycaster properties.
- *
- * @member {object} fuseTimeout - Timeout to trigger fuse-click.
- * @member {Element} cursorDownEl - Entity that was last mousedowned during current click.
- * @member {object} intersection - Attributes of the current intersection event, including
- *         3D- and 2D-space coordinates. See: http://threejs.org/docs/api/core/Raycaster.html
- * @member {Element} intersectedEl - Currently-intersected entity. Used to keep track to
- *         emit events when unintersecting.
- */
-module.exports.Component = registerComponent('cursor', {
-  dependencies: ['raycaster'],
-
-  schema: {
-    downEvents: {default: []},
-    fuse: {default: utils.device.isMobile()},
-    fuseTimeout: {default: 1500, min: 0},
-    upEvents: {default: []},
-    rayOrigin: {default: 'entity', oneOf: ['mouse', 'entity']}
-  },
-
-  init: function () {
-    var self = this;
-
-    this.fuseTimeout = undefined;
-    this.cursorDownEl = null;
-    this.intersection = null;
-    this.intersectedEl = null;
-    this.canvasBounds = document.body.getBoundingClientRect();
-
-    // Debounce.
-    this.updateCanvasBounds = utils.debounce(function updateCanvasBounds () {
-      self.canvasBounds = self.el.sceneEl.canvas.getBoundingClientRect();
-    }, 200);
-
-    this.eventDetail = {};
-    this.intersectedEventDetail = {cursorEl: this.el};
-
-    // Bind methods.
-    this.onCursorDown = bind(this.onCursorDown, this);
-    this.onCursorUp = bind(this.onCursorUp, this);
-    this.onIntersection = bind(this.onIntersection, this);
-    this.onIntersectionCleared = bind(this.onIntersectionCleared, this);
-    this.onMouseMove = bind(this.onMouseMove, this);
-  },
-
-  update: function (oldData) {
-    if (this.data.rayOrigin === oldData.rayOrigin) { return; }
-    this.updateMouseEventListeners();
-  },
-
-  play: function () {
-    this.addEventListeners();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-  },
-
-  remove: function () {
-    var el = this.el;
-    el.removeState(STATES.HOVERING);
-    el.removeState(STATES.FUSING);
-    clearTimeout(this.fuseTimeout);
-    if (this.intersectedEl) { this.intersectedEl.removeState(STATES.HOVERED); }
-    this.removeEventListeners();
-  },
-
-  addEventListeners: function () {
-    var canvas;
-    var data = this.data;
-    var el = this.el;
-    var self = this;
-
-    function addCanvasListeners () {
-      canvas = el.sceneEl.canvas;
-      if (data.downEvents.length || data.upEvents.length) { return; }
-      CANVAS_EVENTS.DOWN.forEach(function (downEvent) {
-        canvas.addEventListener(downEvent, self.onCursorDown);
-      });
-      CANVAS_EVENTS.UP.forEach(function (upEvent) {
-        canvas.addEventListener(upEvent, self.onCursorUp);
-      });
-    }
-
-    canvas = el.sceneEl.canvas;
-    if (canvas) {
-      addCanvasListeners();
-    } else {
-      el.sceneEl.addEventListener('render-target-loaded', addCanvasListeners);
-    }
-
-    data.downEvents.forEach(function (downEvent) {
-      el.addEventListener(downEvent, self.onCursorDown);
-    });
-    data.upEvents.forEach(function (upEvent) {
-      el.addEventListener(upEvent, self.onCursorUp);
-    });
-    el.addEventListener('raycaster-intersection', this.onIntersection);
-    el.addEventListener('raycaster-intersection-cleared', this.onIntersectionCleared);
-
-    window.addEventListener('resize', this.updateCanvasBounds);
-  },
-
-  removeEventListeners: function () {
-    var canvas;
-    var data = this.data;
-    var el = this.el;
-    var self = this;
-
-    canvas = el.sceneEl.canvas;
-    if (canvas && !data.downEvents.length && !data.upEvents.length) {
-      CANVAS_EVENTS.DOWN.forEach(function (downEvent) {
-        canvas.removeEventListener(downEvent, self.onCursorDown);
-      });
-      CANVAS_EVENTS.UP.forEach(function (upEvent) {
-        canvas.removeEventListener(upEvent, self.onCursorUp);
-      });
-    }
-
-    data.downEvents.forEach(function (downEvent) {
-      el.removeEventListener(downEvent, self.onCursorDown);
-    });
-    data.upEvents.forEach(function (upEvent) {
-      el.removeEventListener(upEvent, self.onCursorUp);
-    });
-    el.removeEventListener('raycaster-intersection', this.onIntersection);
-    el.removeEventListener('raycaster-intersection-cleared', this.onIntersectionCleared);
-    canvas.removeEventListener('mousemove', this.onMouseMove);
-    canvas.removeEventListener('touchstart', this.onMouseMove);
-    canvas.removeEventListener('touchmove', this.onMouseMove);
-    canvas.removeEventListener('resize', this.updateCanvasBounds);
-  },
-
-  updateMouseEventListeners: function () {
-    var canvas;
-    var el = this.el;
-
-    canvas = el.sceneEl.canvas;
-    canvas.removeEventListener('mousemove', this.onMouseMove);
-    canvas.removeEventListener('touchmove', this.onMouseMove);
-    el.setAttribute('raycaster', 'useWorldCoordinates', false);
-    if (this.data.rayOrigin !== 'mouse') { return; }
-    canvas.addEventListener('mousemove', this.onMouseMove, false);
-    canvas.addEventListener('touchmove', this.onMouseMove, false);
-    el.setAttribute('raycaster', 'useWorldCoordinates', true);
-    this.updateCanvasBounds();
-  },
-
-  onMouseMove: (function () {
-    var direction = new THREE.Vector3();
-    var mouse = new THREE.Vector2();
-    var origin = new THREE.Vector3();
-    var rayCasterConfig = {origin: origin, direction: direction};
-
-    return function (evt) {
-      var bounds = this.canvasBounds;
-      var camera = this.el.sceneEl.camera;
-      var left;
-      var point;
-      var top;
-
-      camera.parent.updateMatrixWorld();
-      camera.updateMatrixWorld();
-
-      // Calculate mouse position based on the canvas element
-      if (evt.type === 'touchmove' || evt.type === 'touchstart') {
-        // Track the first touch for simplicity.
-        point = evt.touches.item(0);
-      } else {
-        point = evt;
-      }
-
-      left = point.clientX - bounds.left;
-      top = point.clientY - bounds.top;
-      mouse.x = (left / bounds.width) * 2 - 1;
-      mouse.y = -(top / bounds.height) * 2 + 1;
-
-      origin.setFromMatrixPosition(camera.matrixWorld);
-      direction.set(mouse.x, mouse.y, 0.5).unproject(camera).sub(origin).normalize();
-      this.el.setAttribute('raycaster', rayCasterConfig);
-      if (evt.type === 'touchmove') { evt.preventDefault(); }
-    };
-  })(),
-
-  /**
-   * Trigger mousedown and keep track of the mousedowned entity.
-   */
-  onCursorDown: function (evt) {
-    // Raycast again for touch.
-    if (this.data.rayOrigin === 'mouse' && evt.type === 'touchstart') {
-      this.onMouseMove(evt);
-      this.el.components.raycaster.checkIntersections();
-      evt.preventDefault();
-    }
-
-    this.twoWayEmit(EVENTS.MOUSEDOWN);
-    this.cursorDownEl = this.intersectedEl;
-  },
-
-  /**
-   * Trigger mouseup if:
-   * - Not fusing (mobile has no mouse).
-   * - Currently intersecting an entity.
-   * - Currently-intersected entity is the same as the one when mousedown was triggered,
-   *   in case user mousedowned one entity, dragged to another, and mouseupped.
-   */
-  onCursorUp: function (evt) {
-    this.twoWayEmit(EVENTS.MOUSEUP);
-
-    // If intersected entity has changed since the cursorDown, still emit mouseUp on the
-    // previously cursorUp entity.
-    if (this.cursorDownEl && this.cursorDownEl !== this.intersectedEl) {
-      this.intersectedEventDetail.intersection = null;
-      this.cursorDownEl.emit(EVENTS.MOUSEUP, this.intersectedEventDetail);
-    }
-
-    if (!this.data.fuse && this.intersectedEl && this.cursorDownEl === this.intersectedEl) {
-      this.twoWayEmit(EVENTS.CLICK);
-    }
-
-    this.cursorDownEl = null;
-    if (evt.type === 'touchend') { evt.preventDefault(); }
-  },
-
-  /**
-   * Handle intersection.
-   */
-  onIntersection: function (evt) {
-    var cursorEl = this.el;
-    var index;
-    var intersectedEl;
-    var intersection;
-
-    // Select closest object, excluding the cursor.
-    index = evt.detail.els[0] === cursorEl ? 1 : 0;
-    intersection = evt.detail.intersections[index];
-    intersectedEl = evt.detail.els[index];
-
-    // If cursor is the only intersected object, ignore the event.
-    if (!intersectedEl) { return; }
-
-    // Already intersecting this entity.
-    if (this.intersectedEl === intersectedEl) {
-      this.intersection = intersection;
-      return;
-    }
-
-    // Unset current intersection.
-    if (this.intersectedEl) { this.clearCurrentIntersection(); }
-
-    this.setIntersection(intersectedEl, intersection);
-  },
-
-  /**
-   * Handle intersection cleared.
-   */
-  onIntersectionCleared: function (evt) {
-    var clearedEls = evt.detail.clearedEls;
-
-    // Check if the current intersection has ended
-    if (clearedEls.indexOf(this.intersectedEl) === -1) { return; }
-    this.clearCurrentIntersection();
-  },
-
-  setIntersection: function (intersectedEl, intersection) {
-    var cursorEl = this.el;
-    var data = this.data;
-    var self = this;
-    // Set new intersection.
-    this.intersection = intersection;
-    this.intersectedEl = intersectedEl;
-
-    // Hovering.
-    cursorEl.addState(STATES.HOVERING);
-    intersectedEl.addState(STATES.HOVERED);
-    this.twoWayEmit(EVENTS.MOUSEENTER);
-
-    // Begin fuse if necessary.
-    if (data.fuseTimeout === 0 || !data.fuse) { return; }
-    cursorEl.addState(STATES.FUSING);
-    this.twoWayEmit(EVENTS.FUSING);
-    this.fuseTimeout = setTimeout(function fuse () {
-      cursorEl.removeState(STATES.FUSING);
-      self.twoWayEmit(EVENTS.CLICK);
-    }, data.fuseTimeout);
-  },
-
-  clearCurrentIntersection: function () {
-    var cursorEl = this.el;
-    var index;
-    var intersection;
-    var intersections;
-
-    // No longer hovering (or fusing).
-    this.intersectedEl.removeState(STATES.HOVERED);
-    cursorEl.removeState(STATES.HOVERING);
-    cursorEl.removeState(STATES.FUSING);
-    this.twoWayEmit(EVENTS.MOUSELEAVE);
-
-    // Unset intersected entity (after emitting the event).
-    this.intersection = null;
-    this.intersectedEl = null;
-
-    // Clear fuseTimeout.
-    clearTimeout(this.fuseTimeout);
-
-    // Set intersection to another raycasted element if any.
-    intersections = this.el.components.raycaster.intersections;
-    if (intersections.length === 0) { return; }
-    // exclude the cursor.
-    index = intersections[0].object.el === cursorEl ? 1 : 0;
-    intersection = intersections[index];
-    if (!intersection) { return; }
-    this.setIntersection(intersection.object.el, intersection);
-  },
-
-  /**
-   * Helper to emit on both the cursor and the intersected entity (if exists).
-   */
-  twoWayEmit: function (evtName) {
-    var el = this.el;
-    var intersectedEl = this.intersectedEl;
-    var intersection = this.intersection;
-
-    this.eventDetail.intersectedEl = intersectedEl;
-    this.eventDetail.intersection = intersection;
-    el.emit(evtName, this.eventDetail);
-
-    if (!intersectedEl) { return; }
-
-    this.intersectedEventDetail.intersection = intersection;
-    intersectedEl.emit(evtName, this.intersectedEventDetail);
-  }
-});
-
-},{"../core/component":125,"../utils/":195}],79:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var bind = _dereq_('../utils/bind');
-var checkControllerPresentAndSetup = _dereq_('../utils/tracked-controls').checkControllerPresentAndSetup;
-var trackedControlsUtils = _dereq_('../utils/tracked-controls');
-var emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;
-var onButtonEvent = trackedControlsUtils.onButtonEvent;
-
-var DAYDREAM_CONTROLLER_MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/google/';
-var DAYDREAM_CONTROLLER_MODEL_OBJ_URL = DAYDREAM_CONTROLLER_MODEL_BASE_URL + 'vr_controller_daydream.obj';
-var DAYDREAM_CONTROLLER_MODEL_OBJ_MTL = DAYDREAM_CONTROLLER_MODEL_BASE_URL + 'vr_controller_daydream.mtl';
-
-var GAMEPAD_ID_PREFIX = 'Daydream Controller';
-
-/**
- * Daydream controls.
- * Interface with Daydream controller and map Gamepad events to
- * controller buttons: trackpad, menu, system
- * Load a controller model and highlight the pressed buttons.
- */
-module.exports.Component = registerComponent('daydream-controls', {
-  schema: {
-    hand: {default: ''},  // This informs the degenerate arm model.
-    buttonColor: {type: 'color', default: '#000000'},
-    buttonTouchedColor: {type: 'color', default: '#777777'},
-    buttonHighlightColor: {type: 'color', default: '#FFFFFF'},
-    model: {default: true},
-    rotationOffset: {default: 0},
-    armModel: {default: true}
-  },
-
-  /**
-   * Button IDs:
-   * 0 - trackpad
-   * 1 - menu (never dispatched on this layer)
-   * 2 - system (never dispatched on this layer)
-   */
-  mapping: {
-    axes: {trackpad: [0, 1]},
-    buttons: ['trackpad', 'menu', 'system']
-  },
-
-  bindMethods: function () {
-    this.onModelLoaded = bind(this.onModelLoaded, this);
-    this.onControllersUpdate = bind(this.onControllersUpdate, this);
-    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);
-    this.removeControllersUpdateListener = bind(this.removeControllersUpdateListener, this);
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-  },
-
-  init: function () {
-    var self = this;
-    this.animationActive = 'pointing';
-    this.onButtonChanged = bind(this.onButtonChanged, this);
-    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };
-    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };
-    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };
-    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-    this.controllerPresent = false;
-    this.lastControllerCheck = 0;
-    this.bindMethods();
-    this.checkControllerPresentAndSetup = checkControllerPresentAndSetup;  // To allow mock.
-    this.emitIfAxesChanged = emitIfAxesChanged;  // To allow mock.
-  },
-
-  addEventListeners: function () {
-    var el = this.el;
-    el.addEventListener('buttonchanged', this.onButtonChanged);
-    el.addEventListener('buttondown', this.onButtonDown);
-    el.addEventListener('buttonup', this.onButtonUp);
-    el.addEventListener('touchstart', this.onButtonTouchStart);
-    el.addEventListener('touchend', this.onButtonTouchEnd);
-    el.addEventListener('model-loaded', this.onModelLoaded);
-    el.addEventListener('axismove', this.onAxisMoved);
-    this.controllerEventsActive = true;
-  },
-
-  removeEventListeners: function () {
-    var el = this.el;
-    el.removeEventListener('buttonchanged', this.onButtonChanged);
-    el.removeEventListener('buttondown', this.onButtonDown);
-    el.removeEventListener('buttonup', this.onButtonUp);
-    el.removeEventListener('touchstart', this.onButtonTouchStart);
-    el.removeEventListener('touchend', this.onButtonTouchEnd);
-    el.removeEventListener('model-loaded', this.onModelLoaded);
-    el.removeEventListener('axismove', this.onAxisMoved);
-    this.controllerEventsActive = false;
-  },
-
-  checkIfControllerPresent: function () {
-    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {hand: this.data.hand});
-  },
-
-  play: function () {
-    this.checkIfControllerPresent();
-    this.addControllersUpdateListener();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-    this.removeControllersUpdateListener();
-  },
-
-  injectTrackedControls: function () {
-    var el = this.el;
-    var data = this.data;
-    el.setAttribute('tracked-controls', {
-      armModel: data.armModel,
-      hand: data.hand,
-      idPrefix: GAMEPAD_ID_PREFIX,
-      rotationOffset: data.rotationOffset
-    });
-    if (!this.data.model) { return; }
-    this.el.setAttribute('obj-model', {
-      obj: DAYDREAM_CONTROLLER_MODEL_OBJ_URL,
-      mtl: DAYDREAM_CONTROLLER_MODEL_OBJ_MTL
-    });
-  },
-
-  addControllersUpdateListener: function () {
-    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  removeControllersUpdateListener: function () {
-    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  onControllersUpdate: function () {
-    this.checkIfControllerPresent();
-  },
-
-  onModelLoaded: function (evt) {
-    var controllerObject3D = evt.detail.model;
-    var buttonMeshes;
-    if (!this.data.model) { return; }
-    buttonMeshes = this.buttonMeshes = {};
-    buttonMeshes.menu = controllerObject3D.getObjectByName('AppButton_AppButton_Cylinder.004');
-    buttonMeshes.system = controllerObject3D.getObjectByName('HomeButton_HomeButton_Cylinder.005');
-    buttonMeshes.trackpad = controllerObject3D.getObjectByName('TouchPad_TouchPad_Cylinder.003');
-    // Offset pivot point.
-    controllerObject3D.position.set(0, 0, -0.04);
-  },
-
-  onAxisMoved: function (evt) {
-    this.emitIfAxesChanged(this, this.mapping.axes, evt);
-  },
-
-  onButtonChanged: function (evt) {
-    var button = this.mapping.buttons[evt.detail.id];
-    if (!button) return;
-    // Pass along changed event with button state, using button mapping for convenience.
-    this.el.emit(button + 'changed', evt.detail.state);
-  },
-
-  updateModel: function (buttonName, evtName) {
-    if (!this.data.model) { return; }
-    this.updateButtonModel(buttonName, evtName);
-  },
-
-  updateButtonModel: function (buttonName, state) {
-    var buttonMeshes = this.buttonMeshes;
-    if (!buttonMeshes || !buttonMeshes[buttonName]) { return; }
-    var color;
-    switch (state) {
-      case 'down':
-        color = this.data.buttonHighlightColor;
-        break;
-      case 'touchstart':
-        color = this.data.buttonTouchedColor;
-        break;
-      default:
-        color = this.data.buttonColor;
-    }
-    buttonMeshes[buttonName].material.color.set(color);
-  }
-});
-
-},{"../core/component":125,"../utils/bind":189,"../utils/tracked-controls":200}],80:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var bind = _dereq_('../utils/bind');
-var trackedControlsUtils = _dereq_('../utils/tracked-controls');
-var checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;
-var emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;
-var onButtonEvent = trackedControlsUtils.onButtonEvent;
-
-var GEARVR_CONTROLLER_MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/samsung/';
-var GEARVR_CONTROLLER_MODEL_OBJ_URL = GEARVR_CONTROLLER_MODEL_BASE_URL + 'gear_vr_controller.obj';
-var GEARVR_CONTROLLER_MODEL_OBJ_MTL = GEARVR_CONTROLLER_MODEL_BASE_URL + 'gear_vr_controller.mtl';
-
-var GAMEPAD_ID_PREFIX = 'Gear VR';
-
-/**
- * Gear VR controls.
- * Interface with Gear VR controller and map Gamepad events to
- * controller buttons: trackpad, trigger
- * Load a controller model and highlight the pressed buttons.
- */
-module.exports.Component = registerComponent('gearvr-controls', {
-  schema: {
-    hand: {default: ''},  // This informs the degenerate arm model.
-    buttonColor: {type: 'color', default: '#000000'},
-    buttonTouchedColor: {type: 'color', default: '#777777'},
-    buttonHighlightColor: {type: 'color', default: '#FFFFFF'},
-    model: {default: true},
-    rotationOffset: {default: 0},
-    armModel: {default: true}
-  },
-
-  /**
-   * Button IDs:
-   * 0 - trackpad
-   * 1 - trigger
-   */
-  mapping: {
-    axes: {trackpad: [0, 1]},
-    buttons: ['trackpad', 'trigger']
-  },
-
-  bindMethods: function () {
-    this.onModelLoaded = bind(this.onModelLoaded, this);
-    this.onControllersUpdate = bind(this.onControllersUpdate, this);
-    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);
-    this.removeControllersUpdateListener = bind(this.removeControllersUpdateListener, this);
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-  },
-
-  init: function () {
-    var self = this;
-    this.animationActive = 'pointing';
-    this.onButtonChanged = bind(this.onButtonChanged, this);
-    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };
-    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };
-    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };
-    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-    this.controllerPresent = false;
-    this.lastControllerCheck = 0;
-    this.bindMethods();
-    this.checkControllerPresentAndSetup = checkControllerPresentAndSetup;  // To allow mock.
-    this.emitIfAxesChanged = emitIfAxesChanged;  // To allow mock.
-  },
-
-  addEventListeners: function () {
-    var el = this.el;
-    el.addEventListener('buttonchanged', this.onButtonChanged);
-    el.addEventListener('buttondown', this.onButtonDown);
-    el.addEventListener('buttonup', this.onButtonUp);
-    el.addEventListener('touchstart', this.onButtonTouchStart);
-    el.addEventListener('touchend', this.onButtonTouchEnd);
-    el.addEventListener('model-loaded', this.onModelLoaded);
-    el.addEventListener('axismove', this.onAxisMoved);
-    this.controllerEventsActive = true;
-    this.addControllersUpdateListener();
-  },
-
-  removeEventListeners: function () {
-    var el = this.el;
-    el.removeEventListener('buttonchanged', this.onButtonChanged);
-    el.removeEventListener('buttondown', this.onButtonDown);
-    el.removeEventListener('buttonup', this.onButtonUp);
-    el.removeEventListener('touchstart', this.onButtonTouchStart);
-    el.removeEventListener('touchend', this.onButtonTouchEnd);
-    el.removeEventListener('model-loaded', this.onModelLoaded);
-    el.removeEventListener('axismove', this.onAxisMoved);
-    this.controllerEventsActive = false;
-    this.removeControllersUpdateListener();
-  },
-
-  checkIfControllerPresent: function () {
-    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX,
-                                        this.data.hand ? {hand: this.data.hand} : {});
-  },
-
-  play: function () {
-    this.checkIfControllerPresent();
-    this.addControllersUpdateListener();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-    this.removeControllersUpdateListener();
-  },
-
-  injectTrackedControls: function () {
-    var el = this.el;
-    var data = this.data;
-    el.setAttribute('tracked-controls', {
-      armModel: data.armModel,
-      idPrefix: GAMEPAD_ID_PREFIX,
-      rotationOffset: data.rotationOffset
-    });
-    if (!this.data.model) { return; }
-    this.el.setAttribute('obj-model', {
-      obj: GEARVR_CONTROLLER_MODEL_OBJ_URL,
-      mtl: GEARVR_CONTROLLER_MODEL_OBJ_MTL
-    });
-  },
-
-  addControllersUpdateListener: function () {
-    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  removeControllersUpdateListener: function () {
-    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  onControllersUpdate: function () {
-    this.checkIfControllerPresent();
-  },
-
-  // No need for onButtonChanged, since Gear VR controller has no analog buttons.
-
-  onModelLoaded: function (evt) {
-    var controllerObject3D = evt.detail.model;
-    var buttonMeshes;
-    if (!this.data.model) { return; }
-    buttonMeshes = this.buttonMeshes = {};
-    buttonMeshes.trigger = controllerObject3D.children[2];
-    buttonMeshes.trackpad = controllerObject3D.children[1];
-  },
-
-  onButtonChanged: function (evt) {
-    var button = this.mapping.buttons[evt.detail.id];
-    if (!button) return;
-    // Pass along changed event with button state, using button mapping for convenience.
-    this.el.emit(button + 'changed', evt.detail.state);
-  },
-
-  onAxisMoved: function (evt) {
-    this.emitIfAxesChanged(this, this.mapping.axes, evt);
-  },
-
-  updateModel: function (buttonName, evtName) {
-    if (!this.data.model) { return; }
-    this.updateButtonModel(buttonName, evtName);
-  },
-
-  updateButtonModel: function (buttonName, state) {
-    var buttonMeshes = this.buttonMeshes;
-    if (!buttonMeshes || !buttonMeshes[buttonName]) { return; }
-    var color;
-    switch (state) {
-      case 'down':
-        color = this.data.buttonHighlightColor;
-        break;
-      case 'touchstart':
-        color = this.data.buttonTouchedColor;
-        break;
-      default:
-        color = this.data.buttonColor;
-    }
-    buttonMeshes[buttonName].material.color.set(color);
-  }
-});
-
-},{"../core/component":125,"../utils/bind":189,"../utils/tracked-controls":200}],81:[function(_dereq_,module,exports){
-var geometries = _dereq_('../core/geometry').geometries;
-var geometryNames = _dereq_('../core/geometry').geometryNames;
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-
-var dummyGeometry = new THREE.Geometry();
-
-/**
- * Geometry component. Combined with material component to make a mesh in 3D object.
- * Extended with registered geometries.
- */
-module.exports.Component = registerComponent('geometry', {
-  schema: {
-    buffer: {default: true},
-    primitive: {default: 'box', oneOf: geometryNames},
-    skipCache: {default: false}
-  },
-
-  init: function () {
-    this.geometry = null;
-  },
-
-  /**
-   * Talk to geometry system to get or create geometry.
-   */
-  update: function (previousData) {
-    var data = this.data;
-    var el = this.el;
-    var mesh;
-    var system = this.system;
-
-    // Dispose old geometry if we created one.
-    if (this.geometry) {
-      system.unuseGeometry(previousData);
-      this.geometry = null;
-    }
-
-    // Create new geometry.
-    this.geometry = system.getOrCreateGeometry(data);
-
-    // Set on mesh. If mesh does not exist, create it.
-    mesh = el.getObject3D('mesh');
-    if (mesh) {
-      mesh.geometry = this.geometry;
-    } else {
-      mesh = new THREE.Mesh();
-      mesh.geometry = this.geometry;
-      el.setObject3D('mesh', mesh);
-    }
-  },
-
-  /**
-   * Tell geometry system that entity is no longer using the geometry.
-   * Unset the geometry on the mesh
-   */
-  remove: function () {
-    this.system.unuseGeometry(this.data);
-    this.el.getObject3D('mesh').geometry = dummyGeometry;
-    this.geometry = null;
-  },
-
-  /**
-   * Update geometry component schema based on geometry type.
-   *
-   * @param {object} data - New data passed by Component.
-   */
-  updateSchema: function (data) {
-    var newGeometryType = data.primitive;
-    var currentGeometryType = this.data && this.data.primitive;
-    var schema = geometries[newGeometryType] && geometries[newGeometryType].schema;
-
-    // Geometry has no schema.
-    if (!schema) { throw new Error('Unknown geometry schema `' + newGeometryType + '`'); }
-    // Nothing has changed.
-    if (currentGeometryType && currentGeometryType === newGeometryType) { return; }
-
-    this.extendSchema(schema);
-  }
-});
-
-},{"../core/component":125,"../core/geometry":126,"../lib/three":173}],82:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-var warn = utils.debug('components:gltf-model:warn');
-
-/**
- * glTF model loader.
- */
-module.exports.Component = registerComponent('gltf-model', {
-  schema: {type: 'model'},
-
-  init: function () {
-    this.model = null;
-    this.loader = new THREE.GLTFLoader();
-  },
-
-  update: function () {
-    var self = this;
-    var el = this.el;
-    var src = this.data;
-
-    if (!src) { return; }
-
-    this.remove();
-
-    this.loader.load(src, function gltfLoaded (gltfModel) {
-      self.model = gltfModel.scene || gltfModel.scenes[0];
-      self.model.animations = gltfModel.animations;
-      el.setObject3D('mesh', self.model);
-      el.emit('model-loaded', {format: 'gltf', model: self.model});
-    }, undefined /* onProgress */, function gltfFailed (error) {
-      var message = (error && error.message) ? error.message : 'Failed to load glTF model';
-      warn(message);
-      el.emit('model-error', {format: 'gltf', src: src});
-    });
-  },
-
-  remove: function () {
-    if (!this.model) { return; }
-    this.el.removeObject3D('mesh');
-  }
-});
-
-},{"../core/component":125,"../lib/three":173,"../utils/":195}],83:[function(_dereq_,module,exports){
-/* global THREE */
-var registerComponent = _dereq_('../core/component').registerComponent;
-
-// Found at https://github.com/aframevr/assets.
-var MODEL_URLS = {
-  left: 'https://cdn.aframe.io/controllers/oculus-hands/v2/leftHand.json',
-  right: 'https://cdn.aframe.io/controllers/oculus-hands/v2/rightHand.json'
-};
-
-// Poses.
-var ANIMATIONS = {
-  open: 'Open',
-  // point: grip active, trackpad surface active, trigger inactive.
-  point: 'Point',
-  // pointThumb: grip active, trigger inactive, trackpad surface inactive.
-  pointThumb: 'Point + Thumb',
-  // fist: grip active, trigger active, trackpad surface active.
-  fist: 'Fist',
-  // hold: trigger active, grip inactive.
-  hold: 'Hold',
-  // thumbUp: grip active, trigger active, trackpad surface inactive.
-  thumbUp: 'Thumb Up'
-};
-
-// Map animation to public events for the API.
-var EVENTS = {};
-EVENTS[ANIMATIONS.fist] = 'grip';
-EVENTS[ANIMATIONS.thumbUp] = 'pistol';
-EVENTS[ANIMATIONS.point] = 'pointing';
-EVENTS[ANIMATIONS.thumb] = 'thumb';
-
-/**
- * Hand controls component that abstracts 6DoF controls:
- *   oculus-touch-controls, vive-controls, windows-motion-controls.
- *
- * Originally meant to be a sample implementation of applications-specific controls that
- * abstracts multiple types of controllers.
- *
- * Auto-detect appropriate controller.
- * Handle common events coming from the detected vendor-specific controls.
- * Translate button events to semantic hand-related event names:
- *   (gripclose, gripopen, thumbup, thumbdown, pointup, pointdown)
- * Load hand model with gestures that are applied based on the button pressed.
- *
- * @property {string} Hand mapping (`left`, `right`).
- */
-module.exports.Component = registerComponent('hand-controls', {
-  schema: {default: 'left'},
-
-  init: function () {
-    var self = this;
-    var el = this.el;
-    // Current pose.
-    this.gesture = ANIMATIONS.open;
-    // Active buttons populated by events provided by the attached controls.
-    this.pressedButtons = {};
-    this.touchedButtons = {};
-    this.loader = new THREE.ObjectLoader();
-    this.loader.setCrossOrigin('anonymous');
-
-    this.onGripDown = function () { self.handleButton('grip', 'down'); };
-    this.onGripUp = function () { self.handleButton('grip', 'up'); };
-    this.onTrackpadDown = function () { self.handleButton('trackpad', 'down'); };
-    this.onTrackpadUp = function () { self.handleButton('trackpad', 'up'); };
-    this.onTrackpadTouchStart = function () { self.handleButton('trackpad', 'touchstart'); };
-    this.onTrackpadTouchEnd = function () { self.handleButton('trackpad', 'touchend'); };
-    this.onTriggerDown = function () { self.handleButton('trigger', 'down'); };
-    this.onTriggerUp = function () { self.handleButton('trigger', 'up'); };
-    this.onTriggerTouchStart = function () { self.handleButton('trigger', 'touchstart'); };
-    this.onTriggerTouchEnd = function () { self.handleButton('trigger', 'touchend'); };
-    this.onGripTouchStart = function () { self.handleButton('grip', 'touchstart'); };
-    this.onGripTouchEnd = function () { self.handleButton('grip', 'touchend'); };
-    this.onThumbstickDown = function () { self.handleButton('thumbstick', 'down'); };
-    this.onThumbstickUp = function () { self.handleButton('thumbstick', 'up'); };
-    this.onAorXTouchStart = function () { self.handleButton('AorX', 'touchstart'); };
-    this.onAorXTouchEnd = function () { self.handleButton('AorX', 'touchend'); };
-    this.onBorYTouchStart = function () { self.handleButton('BorY', 'touchstart'); };
-    this.onBorYTouchEnd = function () { self.handleButton('BorY', 'touchend'); };
-    this.onSurfaceTouchStart = function () { self.handleButton('surface', 'touchstart'); };
-    this.onSurfaceTouchEnd = function () { self.handleButton('surface', 'touchend'); };
-    this.onControllerConnected = function () { self.setModelVisibility(true); };
-    this.onControllerDisconnected = function () { self.setModelVisibility(false); };
-
-    el.addEventListener('controllerconnected', this.onControllerConnected);
-    el.addEventListener('controllerdisconnected', this.onControllerDisconnected);
-  },
-
-  play: function () {
-    this.addEventListeners();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-  },
-
-  tick: function (time, delta) {
-    var mesh = this.el.getObject3D('mesh');
-
-    if (!mesh || !mesh.mixer) { return; }
-
-    mesh.mixer.update(delta / 1000);
-  },
-
-  addEventListeners: function () {
-    var el = this.el;
-    el.addEventListener('gripdown', this.onGripDown);
-    el.addEventListener('gripup', this.onGripUp);
-    el.addEventListener('trackpaddown', this.onTrackpadDown);
-    el.addEventListener('trackpadup', this.onTrackpadUp);
-    el.addEventListener('trackpadtouchstart', this.onTrackpadTouchStart);
-    el.addEventListener('trackpadtouchend', this.onTrackpadTouchEnd);
-    el.addEventListener('triggerdown', this.onTriggerDown);
-    el.addEventListener('triggerup', this.onTriggerUp);
-    el.addEventListener('triggertouchstart', this.onTriggerTouchStart);
-    el.addEventListener('triggertouchend', this.onTriggerTouchEnd);
-    el.addEventListener('griptouchstart', this.onGripTouchStart);
-    el.addEventListener('griptouchend', this.onGripTouchEnd);
-    el.addEventListener('thumbstickdown', this.onThumbstickDown);
-    el.addEventListener('thumbstickup', this.onThumbstickUp);
-    el.addEventListener('abuttontouchstart', this.onAorXTouchStart);
-    el.addEventListener('abuttontouchend', this.onAorXTouchEnd);
-    el.addEventListener('bbuttontouchstart', this.onBorYTouchStart);
-    el.addEventListener('bbuttontouchend', this.onBorYTouchEnd);
-    el.addEventListener('xbuttontouchstart', this.onAorXTouchStart);
-    el.addEventListener('xbuttontouchend', this.onAorXTouchEnd);
-    el.addEventListener('ybuttontouchstart', this.onBorYTouchStart);
-    el.addEventListener('ybuttontouchend', this.onBorYTouchEnd);
-    el.addEventListener('surfacetouchstart', this.onSurfaceTouchStart);
-    el.addEventListener('surfacetouchend', this.onSurfaceTouchEnd);
-  },
-
-  removeEventListeners: function () {
-    var el = this.el;
-    el.removeEventListener('gripdown', this.onGripDown);
-    el.removeEventListener('gripup', this.onGripUp);
-    el.removeEventListener('trackpaddown', this.onTrackpadDown);
-    el.removeEventListener('trackpadup', this.onTrackpadUp);
-    el.removeEventListener('trackpadtouchstart', this.onTrackpadTouchStart);
-    el.removeEventListener('trackpadtouchend', this.onTrackpadTouchEnd);
-    el.removeEventListener('triggerdown', this.onTriggerDown);
-    el.removeEventListener('triggerup', this.onTriggerUp);
-    el.removeEventListener('triggertouchstart', this.onTriggerTouchStart);
-    el.removeEventListener('triggertouchend', this.onTriggerTouchEnd);
-    el.removeEventListener('griptouchstart', this.onGripTouchStart);
-    el.removeEventListener('griptouchend', this.onGripTouchEnd);
-    el.removeEventListener('thumbstickdown', this.onThumbstickDown);
-    el.removeEventListener('thumbstickup', this.onThumbstickUp);
-    el.removeEventListener('abuttontouchstart', this.onAorXTouchStart);
-    el.removeEventListener('abuttontouchend', this.onAorXTouchEnd);
-    el.removeEventListener('bbuttontouchstart', this.onBorYTouchStart);
-    el.removeEventListener('bbuttontouchend', this.onBorYTouchEnd);
-    el.removeEventListener('xbuttontouchstart', this.onAorXTouchStart);
-    el.removeEventListener('xbuttontouchend', this.onAorXTouchEnd);
-    el.removeEventListener('ybuttontouchstart', this.onBorYTouchStart);
-    el.removeEventListener('ybuttontouchend', this.onBorYTouchEnd);
-    el.removeEventListener('surfacetouchstart', this.onSurfaceTouchStart);
-    el.removeEventListener('surfacetouchend', this.onSurfaceTouchEnd);
-  },
-
-  /**
-   * Update handler. More like the `init` handler since the only property is the hand, and
-   * that won't be changing much.
-   */
-  update: function (previousHand) {
-    var controlConfiguration;
-    var el = this.el;
-    var hand = this.data;
-
-    // Get common configuration to abstract different vendor controls.
-    controlConfiguration = {
-      hand: hand,
-      model: false,
-      rotationOffset: hand === 'left' ? 90 : -90
-    };
-
-    // Set model.
-    if (hand !== previousHand) {
-      this.loader.load(MODEL_URLS[hand], function (scene) {
-        var mesh = scene.getObjectByName('Hand');
-        mesh.material.skinning = true;
-        mesh.mixer = new THREE.AnimationMixer(mesh);
-        el.setObject3D('mesh', mesh);
-        mesh.position.set(0, 0, 0);
-        mesh.rotation.set(0, 0, 0);
-        // hidden by default
-        mesh.visible = false;
-        el.setAttribute('vive-controls', controlConfiguration);
-        el.setAttribute('oculus-touch-controls', controlConfiguration);
-        el.setAttribute('windows-motion-controls', controlConfiguration);
-      });
-    }
-  },
-
-  remove: function () {
-    this.el.removeObject3D('mesh');
-  },
-
-  /**
-   * Play model animation, based on which button was pressed and which kind of event.
-   *
-   * 1. Process buttons.
-   * 2. Determine gesture (this.determineGesture()).
-   * 3. Animation gesture (this.animationGesture()).
-   * 4. Emit gesture events (this.emitGestureEvents()).
-   *
-   * @param {string} button - Name of the button.
-   * @param {string} evt - Type of event for the button (i.e., down/up/touchstart/touchend).
-   */
-  handleButton: function (button, evt) {
-    var lastGesture;
-    var isPressed = evt === 'down';
-    var isTouched = evt === 'touchstart';
-
-    // Update objects.
-    if (evt.indexOf('touch') === 0) {
-      // Update touch object.
-      if (isTouched === this.touchedButtons[button]) { return; }
-      this.touchedButtons[button] = isTouched;
-    } else {
-      // Update button object.
-      if (isPressed === this.pressedButtons[button]) { return; }
-      this.pressedButtons[button] = isPressed;
-    }
-
-    // Determine the gesture.
-    lastGesture = this.gesture;
-    this.gesture = this.determineGesture();
-
-    // Same gesture.
-    if (this.gesture === lastGesture) { return; }
-
-    // Animate gesture.
-    this.animateGesture(this.gesture, lastGesture);
-
-    // Emit events.
-    this.emitGestureEvents(this.gesture, lastGesture);
-  },
-
-  /**
-   * Determine which pose hand should be in considering active and touched buttons.
-   */
-  determineGesture: function () {
-    var gesture;
-    var isGripActive = this.pressedButtons['grip'];
-    var isSurfaceActive = this.pressedButtons['surface'] || this.touchedButtons['surface'];
-    var isTrackpadActive = this.pressedButtons['trackpad'] || this.touchedButtons['trackpad'];
-    var isTriggerActive = this.pressedButtons['trigger'] || this.touchedButtons['trigger'];
-    var isABXYActive = this.touchedButtons['AorX'] || this.touchedButtons['BorY'];
-    var isVive = isViveController(this.el.components['tracked-controls']);
-
-    // Works well with Oculus Touch and Windows Motion Controls, but Vive needs tweaks.
-    if (isGripActive) {
-      if (isVive) {
-        gesture = ANIMATIONS.fist;
-      } else
-        if (isSurfaceActive || isABXYActive || isTrackpadActive) {
-          gesture = isTriggerActive ? ANIMATIONS.fist : ANIMATIONS.point;
-        } else {
-          gesture = isTriggerActive ? ANIMATIONS.thumbUp : ANIMATIONS.pointThumb;
-        }
-    } else {
-      if (isTriggerActive) {
-        gesture = !isVive ? ANIMATIONS.hold : ANIMATIONS.fist;
-      } else if (isVive && isTrackpadActive) {
-        gesture = ANIMATIONS.point;
-      }
-    }
-
-    return gesture;
-  },
-
-  /**
-   * Play gesture animation.
-   *
-   * @param {string} gesture - Which pose to animate to. If absent, then animate to open.
-   * @param {string} lastGesture - Previous gesture, to reverse back to open if needed.
-   */
-  animateGesture: function (gesture, lastGesture) {
-    if (gesture) {
-      this.playAnimation(gesture || ANIMATIONS.open, lastGesture, false);
-      return;
-    }
-    // If no gesture, then reverse the current gesture back to open pose.
-    this.playAnimation(lastGesture, lastGesture, true);
-  },
-
-  /**
-   * Emit `hand-controls`-specific events.
-   */
-  emitGestureEvents: function (gesture, lastGesture) {
-    var el = this.el;
-    var eventName;
-
-    if (lastGesture === gesture) { return; }
-
-    // Emit event for lastGesture not inactive.
-    eventName = getGestureEventName(lastGesture, false);
-    if (eventName) { el.emit(eventName); }
-
-    // Emit event for current gesture now active.
-    eventName = getGestureEventName(gesture, true);
-    if (eventName) { el.emit(eventName); }
-  },
-
-/**
-  * Play hand animation based on button state.
-  *
-  * @param {string} gesture - Name of the animation as specified by the model.
-  * @param {string} lastGesture - Previous pose.
-  * @param {boolean} reverse - Whether animation should play in reverse.
-  */
-  playAnimation: function (gesture, lastGesture, reverse) {
-    var fromAction;
-    var mesh = this.el.getObject3D('mesh');
-    var toAction;
-
-    if (!mesh) { return; }
-
-    // Grab clip action.
-    toAction = mesh.mixer.clipAction(gesture);
-    toAction.clampWhenFinished = true;
-    toAction.loop = THREE.PingPong;
-    toAction.repetitions = 0;
-    toAction.timeScale = reverse ? -1 : 1;
-    toAction.weight = 1;
-
-    // No gesture to gesture or gesture to no gesture.
-    if (!lastGesture || gesture === lastGesture) {
-      // Stop all current animations.
-      mesh.mixer.stopAllAction();
-
-      // Play animation.
-      toAction.play();
-      return;
-    }
-
-    // Animate or crossfade from gesture to gesture.
-    fromAction = mesh.mixer.clipAction(lastGesture);
-    mesh.mixer.stopAllAction();
-    fromAction.weight = 0.15;
-    fromAction.play();
-    toAction.play();
-    fromAction.crossFadeTo(toAction, 0.15, true);
-  },
-
-  setModelVisibility: function (visible) {
-    var model = this.el.getObject3D('mesh');
-    if (!model) { return; }
-    model.visible = visible;
-  }
-});
-
-/**
- * Suffix gestures based on toggle state (e.g., open/close, up/down, start/end).
- *
- * @param {string} gesture
- * @param {boolean} active
- */
-function getGestureEventName (gesture, active) {
-  var eventName;
-
-  if (!gesture) { return; }
-
-  eventName = EVENTS[gesture];
-  if (eventName === 'grip') {
-    return eventName + (active ? 'close' : 'open');
-  }
-  if (eventName === 'point' || eventName === 'thumb') {
-    return eventName + (active ? 'up' : 'down');
-  }
-  if (eventName === 'pointing' || eventName === 'pistol') {
-    return eventName + (active ? 'start' : 'end');
-  }
-  return;
-}
-
-function isViveController (trackedControls) {
-  var controllerId = trackedControls && trackedControls.controller &&
-                     trackedControls.controller.id;
-  return controllerId && controllerId.indexOf('OpenVR ') === 0;
-}
-
-},{"../core/component":125}],84:[function(_dereq_,module,exports){
-_dereq_('./camera');
-_dereq_('./collada-model');
-_dereq_('./cursor');
-_dereq_('./daydream-controls');
-_dereq_('./gearvr-controls');
-_dereq_('./geometry');
-_dereq_('./gltf-model');
-_dereq_('./hand-controls');
-_dereq_('./laser-controls');
-_dereq_('./light');
-_dereq_('./line');
-_dereq_('./link');
-_dereq_('./look-controls');
-_dereq_('./material');
-_dereq_('./obj-model');
-_dereq_('./oculus-touch-controls');
-_dereq_('./position');
-_dereq_('./raycaster');
-_dereq_('./rotation');
-_dereq_('./scale');
-_dereq_('./shadow');
-_dereq_('./sound');
-_dereq_('./text');
-_dereq_('./tracked-controls');
-_dereq_('./visible');
-_dereq_('./vive-controls');
-_dereq_('./wasd-controls');
-_dereq_('./windows-motion-controls');
-
-_dereq_('./scene/background');
-_dereq_('./scene/debug');
-_dereq_('./scene/embedded');
-_dereq_('./scene/inspector');
-_dereq_('./scene/fog');
-_dereq_('./scene/keyboard-shortcuts');
-_dereq_('./scene/pool');
-_dereq_('./scene/screenshot');
-_dereq_('./scene/stats');
-_dereq_('./scene/vr-mode-ui');
-
-},{"./camera":76,"./collada-model":77,"./cursor":78,"./daydream-controls":79,"./gearvr-controls":80,"./geometry":81,"./gltf-model":82,"./hand-controls":83,"./laser-controls":85,"./light":86,"./line":87,"./link":88,"./look-controls":89,"./material":90,"./obj-model":91,"./oculus-touch-controls":92,"./position":93,"./raycaster":94,"./rotation":95,"./scale":96,"./scene/background":97,"./scene/debug":98,"./scene/embedded":99,"./scene/fog":100,"./scene/inspector":101,"./scene/keyboard-shortcuts":102,"./scene/pool":103,"./scene/screenshot":104,"./scene/stats":105,"./scene/vr-mode-ui":106,"./shadow":107,"./sound":108,"./text":109,"./tracked-controls":110,"./visible":111,"./vive-controls":112,"./wasd-controls":113,"./windows-motion-controls":114}],85:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var utils = _dereq_('../utils/');
-
-registerComponent('laser-controls', {
-  schema: {
-    hand: {default: 'right'}
-  },
-
-  init: function () {
-    var config = this.config;
-    var data = this.data;
-    var el = this.el;
-    var self = this;
-
-    // Set all controller models.
-    el.setAttribute('daydream-controls', {hand: data.hand});
-    el.setAttribute('gearvr-controls', {hand: data.hand});
-    el.setAttribute('oculus-touch-controls', {hand: data.hand});
-    el.setAttribute('vive-controls', {hand: data.hand});
-    el.setAttribute('windows-motion-controls', {hand: data.hand});
-
-    // Wait for controller to connect, or have a valid pointing pose, before creating ray
-    el.addEventListener('controllerconnected', createRay);
-    el.addEventListener('controllerdisconnected', hideRay);
-    el.addEventListener('controllermodelready', function (evt) {
-      createRay(evt);
-      self.modelReady = true;
-    });
-
-    function createRay (evt) {
-      var controllerConfig = config[evt.detail.name];
-
-      if (!controllerConfig) { return; }
-
-      // Show the line unless a particular config opts to hide it, until a controllermodelready
-      // event comes through.
-      var raycasterConfig = utils.extend({
-        showLine: true
-      }, controllerConfig.raycaster || {});
-
-      // The controllermodelready event contains a rayOrigin that takes into account
-      // offsets specific to the loaded model.
-      if (evt.detail.rayOrigin) {
-        raycasterConfig.origin = evt.detail.rayOrigin.origin;
-        raycasterConfig.direction = evt.detail.rayOrigin.direction;
-        raycasterConfig.showLine = true;
-      }
-
-      // Only apply a default raycaster if it does not yet exist. This prevents it overwriting
-      // config applied from a controllermodelready event.
-      if (evt.detail.rayOrigin || !self.modelReady) {
-        el.setAttribute('raycaster', raycasterConfig);
-      } else {
-        el.setAttribute('raycaster', 'showLine', true);
-      }
-
-      el.setAttribute('cursor', utils.extend({
-        fuse: false
-      }, controllerConfig.cursor));
-    }
-
-    function hideRay () {
-      el.setAttribute('raycaster', 'showLine', false);
-    }
-  },
-
-  config: {
-    'daydream-controls': {
-      cursor: {downEvents: ['trackpaddown'], upEvents: ['trackpadup']}
-    },
-
-    'gearvr-controls': {
-      cursor: {downEvents: ['trackpaddown'], upEvents: ['trackpadup']},
-      raycaster: {origin: {x: 0, y: 0.0005, z: 0}}
-    },
-
-    'oculus-touch-controls': {
-      cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},
-      raycaster: {origin: {x: 0.001, y: 0, z: 0.065}, direction: {x: 0, y: -0.8, z: -1}}
-    },
-
-    'vive-controls': {
-      cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']}
-    },
-
-    'windows-motion-controls': {
-      cursor: {downEvents: ['triggerdown'], upEvents: ['triggerup']},
-      raycaster: {showLine: false}
-    }
-  }
-});
-
-},{"../core/component":125,"../utils/":195}],86:[function(_dereq_,module,exports){
-var bind = _dereq_('../utils/bind');
-var diff = _dereq_('../utils').diff;
-var debug = _dereq_('../utils/debug');
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-
-var degToRad = THREE.Math.degToRad;
-var warn = debug('components:light:warn');
-
-/**
- * Light component.
- */
-module.exports.Component = registerComponent('light', {
-  schema: {
-    angle: {default: 60, if: {type: ['spot']}},
-    color: {type: 'color'},
-    groundColor: {type: 'color', if: {type: ['hemisphere']}},
-    decay: {default: 1, if: {type: ['point', 'spot']}},
-    distance: {default: 0.0, min: 0, if: {type: ['point', 'spot']}},
-    intensity: {default: 1.0, min: 0, if: {type: ['ambient', 'directional', 'hemisphere', 'point', 'spot']}},
-    penumbra: {default: 0, min: 0, max: 1, if: {type: ['spot']}},
-    type: {default: 'directional', oneOf: ['ambient', 'directional', 'hemisphere', 'point', 'spot']},
-    target: {type: 'selector', if: {type: ['spot', 'directional']}},
-
-    // Shadows.
-    castShadow: {default: false, if: {type: ['point', 'spot', 'directional']}},
-    shadowBias: {default: 0, if: {castShadow: true}},
-    shadowCameraFar: {default: 500, if: {castShadow: true}},
-    shadowCameraFov: {default: 90, if: {castShadow: true}},
-    shadowCameraNear: {default: 0.5, if: {castShadow: true}},
-    shadowCameraTop: {default: 5, if: {castShadow: true}},
-    shadowCameraRight: {default: 5, if: {castShadow: true}},
-    shadowCameraBottom: {default: -5, if: {castShadow: true}},
-    shadowCameraLeft: {default: -5, if: {castShadow: true}},
-    shadowCameraVisible: {default: false, if: {castShadow: true}},
-    shadowMapHeight: {default: 512, if: {castShadow: true}},
-    shadowMapWidth: {default: 512, if: {castShadow: true}}
-  },
-
-  /**
-   * Notifies scene a light has been added to remove default lighting.
-   */
-  init: function () {
-    var el = this.el;
-    this.light = null;
-    this.defaultTarget = null;
-    this.system.registerLight(el);
-  },
-
-  /**
-   * (Re)create or update light.
-   */
-  update: function (oldData) {
-    var data = this.data;
-    var diffData = diff(data, oldData);
-    var light = this.light;
-    var self = this;
-
-    // Existing light.
-    if (light && !('type' in diffData)) {
-      var shadowsLoaded = false;
-      // Light type has not changed. Update light.
-      Object.keys(diffData).forEach(function (key) {
-        var value = data[key];
-
-        switch (key) {
-          case 'color': {
-            light.color.set(value);
-            break;
-          }
-
-          case 'groundColor': {
-            light.groundColor.set(value);
-            break;
-          }
-
-          case 'angle': {
-            light.angle = degToRad(value);
-            break;
-          }
-
-          case 'target': {
-            // Reset target if selector is null.
-            if (value === null) {
-              if (data.type === 'spot' || data.type === 'directional') {
-                light.target = self.defaultTarget;
-              }
-            } else {
-              // Target specified, set target to entity's `object3D` when it is loaded.
-              if (value.hasLoaded) {
-                self.onSetTarget(value, light);
-              } else {
-                value.addEventListener('loaded', bind(self.onSetTarget, self, value, light));
-              }
-            }
-            break;
-          }
-
-          case 'castShadow':
-          case 'shadowBias':
-          case 'shadowCameraFar':
-          case 'shadowCameraFov':
-          case 'shadowCameraNear':
-          case 'shadowCameraTop':
-          case 'shadowCameraRight':
-          case 'shadowCameraBottom':
-          case 'shadowCameraLeft':
-          case 'shadowCameraVisible':
-          case 'shadowMapHeight':
-          case 'shadowMapWidth':
-            if (!shadowsLoaded) {
-              self.updateShadow();
-              shadowsLoaded = true;
-            }
-            break;
-
-          default: {
-            light[key] = value;
-          }
-        }
-      });
-      return;
-    }
-
-    // No light yet or light type has changed. Create and add light.
-    this.setLight(this.data);
-    this.updateShadow();
-  },
-
-  setLight: function (data) {
-    var el = this.el;
-    var newLight = this.getLight(data);
-    if (newLight) {
-      if (this.light) {
-        el.removeObject3D('light');
-      }
-
-      this.light = newLight;
-      this.light.el = el;
-      el.setObject3D('light', this.light);
-
-      // HACK solution for issue #1624
-      if (data.type === 'spot' || data.type === 'directional' || data.type === 'hemisphere') {
-        el.getObject3D('light').translateY(-1);
-      }
-
-      // set and position default lighttarget as a child to enable spotlight orientation
-      if (data.type === 'spot') {
-        el.setObject3D('light-target', this.defaultTarget);
-        el.getObject3D('light-target').position.set(0, 0, -1);
-      }
-    }
-  },
-
-  /**
-   * Updates shadow-related properties on the current light.
-   */
-  updateShadow: function () {
-    var el = this.el;
-    var data = this.data;
-    var light = this.light;
-
-    light.castShadow = data.castShadow;
-
-    // Shadow camera helper.
-    var cameraHelper = el.getObject3D('cameraHelper');
-    if (data.shadowCameraVisible && !cameraHelper) {
-      el.setObject3D('cameraHelper', new THREE.CameraHelper(light.shadow.camera));
-    } else if (!data.shadowCameraVisible && cameraHelper) {
-      el.removeObject3D('cameraHelper');
-    }
-
-    if (!data.castShadow) { return light; }
-
-    // Shadow appearance.
-    light.shadow.bias = data.shadowBias;
-    light.shadow.mapSize.height = data.shadowMapHeight;
-    light.shadow.mapSize.width = data.shadowMapWidth;
-
-    // Shadow camera.
-    light.shadow.camera.near = data.shadowCameraNear;
-    light.shadow.camera.far = data.shadowCameraFar;
-    if (light.shadow.camera instanceof THREE.OrthographicCamera) {
-      light.shadow.camera.top = data.shadowCameraTop;
-      light.shadow.camera.right = data.shadowCameraRight;
-      light.shadow.camera.bottom = data.shadowCameraBottom;
-      light.shadow.camera.left = data.shadowCameraLeft;
-    } else {
-      light.shadow.camera.fov = data.shadowCameraFov;
-    }
-    light.shadow.camera.updateProjectionMatrix();
-
-    if (cameraHelper) { cameraHelper.update(); }
-  },
-
-  /**
-   * Creates a new three.js light object given data object defining the light.
-   *
-   * @param {object} data
-   */
-  getLight: function (data) {
-    var angle = data.angle;
-    var color = new THREE.Color(data.color).getHex();
-    var decay = data.decay;
-    var distance = data.distance;
-    var groundColor = new THREE.Color(data.groundColor).getHex();
-    var intensity = data.intensity;
-    var type = data.type;
-    var target = data.target;
-    var light = null;
-
-    switch (type.toLowerCase()) {
-      case 'ambient': {
-        return new THREE.AmbientLight(color, intensity);
-      }
-
-      case 'directional': {
-        light = new THREE.DirectionalLight(color, intensity);
-        this.defaultTarget = light.target;
-        if (target) {
-          if (target.hasLoaded) {
-            this.onSetTarget(target, light);
-          } else {
-            target.addEventListener('loaded', bind(this.onSetTarget, this, target, light));
-          }
-        }
-        return light;
-      }
-
-      case 'hemisphere': {
-        return new THREE.HemisphereLight(color, groundColor, intensity);
-      }
-
-      case 'point': {
-        return new THREE.PointLight(color, intensity, distance, decay);
-      }
-
-      case 'spot': {
-        light = new THREE.SpotLight(color, intensity, distance, degToRad(angle), data.penumbra, decay);
-        this.defaultTarget = light.target;
-        if (target) {
-          if (target.hasLoaded) {
-            this.onSetTarget(target, light);
-          } else {
-            target.addEventListener('loaded', bind(this.onSetTarget, this, target, light));
-          }
-        }
-        return light;
-      }
-
-      default: {
-        warn('%s is not a valid light type. ' +
-           'Choose from ambient, directional, hemisphere, point, spot.', type);
-      }
-    }
-  },
-
-  onSetTarget: function (targetEl, light) {
-    light.target = targetEl.object3D;
-  },
-
-  /**
-   * Remove light on remove (callback).
-   */
-  remove: function () {
-    var el = this.el;
-    el.removeObject3D('light');
-    if (el.getObject3D('cameraHelper')) {
-      el.removeObject3D('cameraHelper');
-    }
-  }
-});
-
-},{"../core/component":125,"../lib/three":173,"../utils":195,"../utils/bind":189,"../utils/debug":191}],87:[function(_dereq_,module,exports){
-/* global THREE */
-var registerComponent = _dereq_('../core/component').registerComponent;
-
-module.exports.Component = registerComponent('line', {
-  schema: {
-    start: {type: 'vec3', default: {x: 0, y: 0, z: 0}},
-    end: {type: 'vec3', default: {x: 0, y: 0, z: 0}},
-    color: {type: 'color', default: '#74BEC1'},
-    opacity: {type: 'number', default: 1},
-    visible: {default: true}
-  },
-
-  multiple: true,
-
-  init: function () {
-    var data = this.data;
-    var geometry;
-    var material;
-    material = this.material = new THREE.LineBasicMaterial({
-      color: data.color,
-      opacity: data.opacity,
-      transparent: data.opacity < 1,
-      visible: data.visible
-    });
-    geometry = this.geometry = new THREE.BufferGeometry();
-    geometry.addAttribute('position', new THREE.BufferAttribute(new Float32Array(2 * 3), 3));
-
-    this.line = new THREE.Line(geometry, material);
-    this.el.setObject3D(this.attrName, this.line);
-  },
-
-  update: function (oldData) {
-    var data = this.data;
-    var geometry = this.geometry;
-    var geoNeedsUpdate = false;
-    var material = this.material;
-    var positionArray = geometry.attributes.position.array;
-
-    // Update geometry.
-    if (!isEqualVec3(data.start, oldData.start)) {
-      positionArray[0] = data.start.x;
-      positionArray[1] = data.start.y;
-      positionArray[2] = data.start.z;
-      geoNeedsUpdate = true;
-    }
-
-    if (!isEqualVec3(data.end, oldData.end)) {
-      positionArray[3] = data.end.x;
-      positionArray[4] = data.end.y;
-      positionArray[5] = data.end.z;
-      geoNeedsUpdate = true;
-    }
-
-    if (geoNeedsUpdate) {
-      geometry.attributes.position.needsUpdate = true;
-      geometry.computeBoundingSphere();
-    }
-
-    material.color.setStyle(data.color);
-    material.opacity = data.opacity;
-    material.transparent = data.opacity < 1;
-    material.visible = data.visible;
-  },
-
-  remove: function () {
-    this.el.removeObject3D('line', this.line);
-  }
-});
-
-function isEqualVec3 (a, b) {
-  if (!a || !b) { return false; }
-  return (a.x === b.x && a.y === b.y && a.z === b.z);
-}
-
-},{"../core/component":125}],88:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var registerShader = _dereq_('../core/shader').registerShader;
-var THREE = _dereq_('../lib/three');
-
-/**
- * Link component. Connect experiences and traverse between them in VR
- *
- * @member {object} hiddenEls - Store the hidden elements during peek mode.
- */
-module.exports.Component = registerComponent('link', {
-  schema: {
-    backgroundColor: {default: 'red', type: 'color'},
-    borderColor: {default: 'white', type: 'color'},
-    highlighted: {default: false},
-    highlightedColor: {default: '#24CAFF', type: 'color'},
-    href: {default: ''},
-    image: {type: 'asset'},
-    on: {default: 'click'},
-    peekMode: {default: false},
-    title: {default: ''},
-    titleColor: {default: 'white', type: 'color'},
-    visualAspectEnabled: {default: true}
-  },
-
-  init: function () {
-    this.navigate = this.navigate.bind(this);
-    this.previousQuaternion = undefined;
-    this.quaternionClone = new THREE.Quaternion();
-    // Store hidden elements during peek mode so we can show them again later.
-    this.hiddenEls = [];
-    this.initVisualAspect();
-  },
-
-  update: function (oldData) {
-    var data = this.data;
-    var el = this.el;
-    var backgroundColor;
-    var strokeColor;
-
-    backgroundColor = data.highlighted ? data.highlightedColor : data.backgroundColor;
-    strokeColor = data.highlighted ? data.highlightedColor : data.borderColor;
-    el.setAttribute('material', 'backgroundColor', backgroundColor);
-    el.setAttribute('material', 'strokeColor', strokeColor);
-
-    if (data.on !== oldData.on) { this.updateEventListener(); }
-
-    if (data.visualAspectEnabled && oldData.peekMode !== undefined &&
-        data.peekMode !== oldData.peekMode) { this.updatePeekMode(); }
-
-    if (!data.image || oldData.image === data.image) { return; }
-
-    el.setAttribute('material', 'pano',
-                    typeof data.image === 'string' ? data.image : data.image.src);
-  },
-
-  /*
-   * Toggle all elements and full 360 preview of the linked page.
-   */
-  updatePeekMode: function () {
-    var el = this.el;
-    var sphereEl = this.sphereEl;
-    if (this.data.peekMode) {
-      this.hideAll();
-      el.getObject3D('mesh').visible = false;
-      sphereEl.setAttribute('visible', true);
-    } else {
-      this.showAll();
-      el.getObject3D('mesh').visible = true;
-      sphereEl.setAttribute('visible', false);
-    }
-  },
-
-  play: function () {
-    this.updateEventListener();
-  },
-
-  pause: function () {
-    this.removeEventListener();
-  },
-
-  updateEventListener: function () {
-    var el = this.el;
-    if (!el.isPlaying) { return; }
-    this.removeEventListener();
-    el.addEventListener(this.data.on, this.navigate);
-  },
-
-  removeEventListener: function () {
-    var on = this.data.on;
-    if (!on) { return; }
-    this.el.removeEventListener(on, this.navigate);
-  },
-
-  initVisualAspect: function () {
-    var el = this.el;
-    var semiSphereEl;
-    var sphereEl;
-    var textEl;
-
-    if (!this.data.visualAspectEnabled) { return; }
-
-    textEl = this.textEl = this.textEl || document.createElement('a-entity');
-    sphereEl = this.sphereEl = this.sphereEl || document.createElement('a-entity');
-    semiSphereEl = this.semiSphereEl = this.semiSphereEl || document.createElement('a-entity');
-
-    // Set portal.
-    el.setAttribute('geometry', {primitive: 'circle', radius: 1.0, segments: 64});
-    el.setAttribute('material', {shader: 'portal', pano: this.data.image, side: 'double'});
-
-    // Set text that displays the link title and URL.
-    textEl.setAttribute('text', {
-      color: this.data.titleColor,
-      align: 'center',
-      font: 'kelsonsans',
-      value: this.data.title || this.data.href,
-      width: 4
-    });
-    textEl.setAttribute('position', '0 1.5 0');
-    el.appendChild(textEl);
-
-    // Set sphere rendered when camera is close to portal to allow user to peek inside.
-    semiSphereEl.setAttribute('geometry', {
-      primitive: 'sphere',
-      radius: 1.0,
-      phiStart: 0,
-      segmentsWidth: 64,
-      segmentsHeight: 64,
-      phiLength: 180,
-      thetaStart: 0,
-      thetaLength: 360
-    });
-    semiSphereEl.setAttribute('material', {
-      shader: 'portal',
-      borderEnabled: 0.0,
-      pano: this.data.image,
-      side: 'back'
-    });
-    semiSphereEl.setAttribute('rotation', '0 180 0');
-    semiSphereEl.setAttribute('position', '0 0 0');
-    semiSphereEl.setAttribute('visible', false);
-    el.appendChild(semiSphereEl);
-
-    // Set sphere rendered when camera is close to portal to allow user to peek inside.
-    sphereEl.setAttribute('geometry', {
-      primitive: 'sphere',
-      radius: 10,
-      segmentsWidth: 64,
-      segmentsHeight: 64
-    });
-    sphereEl.setAttribute('material', {
-      shader: 'portal',
-      borderEnabled: 0.0,
-      pano: this.data.image,
-      side: 'back'
-    });
-    sphereEl.setAttribute('visible', false);
-    el.appendChild(sphereEl);
-  },
-
-  navigate: function () {
-    window.location = this.data.href;
-  },
-
-  /**
-   * 1. Swap plane that represents portal with sphere with a hole when the camera is close
-   * so user can peek inside portal. Sphere is rendered on oposite side of portal
-   * from where user enters.
-   * 2. Place the url/title above or inside portal depending on distance to camera.
-   * 3. Face portal to camera when far away from user.
-   */
-  tick: (function () {
-    var cameraWorldPosition = new THREE.Vector3();
-    var elWorldPosition = new THREE.Vector3();
-    var quaternion = new THREE.Quaternion();
-    var scale = new THREE.Vector3();
-
-    return function () {
-      var el = this.el;
-      var object3D = el.object3D;
-      var camera = el.sceneEl.camera;
-      var cameraPortalOrientation;
-      var distance;
-      var textEl = this.textEl;
-
-      if (!this.data.visualAspectEnabled) { return; }
-
-      // Update matrices
-      object3D.updateMatrixWorld();
-      camera.parent.updateMatrixWorld();
-      camera.updateMatrixWorld();
-
-      object3D.matrix.decompose(elWorldPosition, quaternion, scale);
-      elWorldPosition.setFromMatrixPosition(object3D.matrixWorld);
-      cameraWorldPosition.setFromMatrixPosition(camera.matrixWorld);
-      distance = elWorldPosition.distanceTo(cameraWorldPosition);
-
-      if (distance > 20) {
-        // Store original orientation to be restored when the portal stops facing the camera.
-        if (!this.previousQuaternion) {
-          this.quaternionClone.copy(quaternion);
-          this.previousQuaternion = this.quaternionClone;
-        }
-        // If the portal is far away from the user, face portal to camera.
-        object3D.lookAt(cameraWorldPosition);
-      } else {
-        // When portal is close to the user/camera.
-        cameraPortalOrientation = this.calculateCameraPortalOrientation();
-        // If user gets very close to portal, replace with holed sphere they can peek in.
-        if (distance < 0.5) {
-          // Configure text size and sphere orientation depending side user approaches portal.
-          if (this.semiSphereEl.getAttribute('visible') === true) { return; }
-          textEl.setAttribute('text', 'width', 1.5);
-          if (cameraPortalOrientation <= 0.0) {
-            textEl.setAttribute('position', '0 0 0.75');
-            textEl.setAttribute('rotation', '0 180 0');
-            this.semiSphereEl.setAttribute('rotation', '0 0 0');
-          } else {
-            textEl.setAttribute('position', '0 0 -0.75');
-            textEl.setAttribute('rotation', '0 0 0');
-            this.semiSphereEl.setAttribute('rotation', '0 180 0');
-          }
-          el.getObject3D('mesh').visible = false;
-          this.semiSphereEl.setAttribute('visible', true);
-          this.peekCameraPortalOrientation = cameraPortalOrientation;
-        } else {
-          // Calculate wich side the camera is approaching the camera (back / front).
-          // Adjust text orientation based on camera position.
-          if (cameraPortalOrientation <= 0.0) {
-            textEl.setAttribute('rotation', '0 180 0');
-          } else {
-            textEl.setAttribute('rotation', '0 0 0');
-          }
-          textEl.setAttribute('text', 'width', 5);
-          textEl.setAttribute('position', '0 1.5 0');
-          el.getObject3D('mesh').visible = true;
-          this.semiSphereEl.setAttribute('visible', false);
-          this.peekCameraPortalOrientation = undefined;
-        }
-        if (this.previousQuaternion) {
-          object3D.quaternion.copy(this.previousQuaternion);
-          this.previousQuaternion = undefined;
-        }
-      }
-    };
-  })(),
-
-  hideAll: function () {
-    var el = this.el;
-    var hiddenEls = this.hiddenEls;
-    var self = this;
-    if (hiddenEls.length > 0) { return; }
-    el.sceneEl.object3D.traverse(function (object) {
-      if (object && object.el && object.el.hasAttribute('link-controls')) { return; }
-      if (!object.el || object === el.sceneEl.object3D || object.el === el ||
-          object.el === self.sphereEl || object.el === el.sceneEl.cameraEl ||
-          object.el.getAttribute('visible') === false || object.el === self.textEl ||
-          object.el === self.semiSphereEl) {
-        return;
-      }
-      object.el.setAttribute('visible', false);
-      hiddenEls.push(object.el);
-    });
-  },
-
-  showAll: function () {
-    this.hiddenEls.forEach(function (el) { el.setAttribute('visible', true); });
-    this.hiddenEls = [];
-  },
-
-  /**
-   * Calculate whether the camera faces the front or back face of the portal.
-   * @returns {number} > 0 if camera faces front of portal, < 0 if it faces back of portal.
-   */
-  calculateCameraPortalOrientation: (function () {
-    var mat4 = new THREE.Matrix4();
-    var cameraPosition = new THREE.Vector3();
-    var portalNormal = new THREE.Vector3(0, 0, 1);
-    var portalPosition = new THREE.Vector3(0, 0, 0);
-
-    return function () {
-      var el = this.el;
-      var camera = el.sceneEl.camera;
-
-      // Reset tmp variables.
-      cameraPosition.set(0, 0, 0);
-      portalNormal.set(0, 0, 1);
-      portalPosition.set(0, 0, 0);
-
-      // Apply portal orientation to the normal.
-      el.object3D.matrixWorld.extractRotation(mat4);
-      portalNormal.applyMatrix4(mat4);
-
-      // Calculate portal world position.
-      el.object3D.updateMatrixWorld();
-      el.object3D.localToWorld(portalPosition);
-
-      // Calculate camera world position.
-      camera.parent.parent.updateMatrixWorld();
-      camera.parent.updateMatrixWorld();
-      camera.updateMatrixWorld();
-      camera.localToWorld(cameraPosition);
-
-      // Calculate vector from portal to camera.
-      // (portal) -------> (camera)
-      cameraPosition.sub(portalPosition).normalize();
-      portalNormal.normalize();
-
-      // Side where camera approaches portal is given by sign of dot product of portal normal
-      // and portal to camera vectors.
-      return Math.sign(portalNormal.dot(cameraPosition));
-    };
-  })(),
-
-  remove: function () {
-    this.removeEventListener();
-  }
-});
-
-/* eslint-disable */
-registerShader('portal', {
-  schema: {
-    borderEnabled: {default: 1.0, type: 'int', is: 'uniform'},
-    backgroundColor: {default: 'red', type: 'color', is: 'uniform'},
-    pano: {type: 'map', is: 'uniform'},
-    strokeColor: {default: 'white', type: 'color', is: 'uniform'}
-  },
-
-  vertexShader: [
-    'vec3 portalPosition;',
-    'varying vec3 vWorldPosition;',
-    'varying float vDistanceToCenter;',
-    'varying float vDistance;',
-    'void main() {',
-    'vDistanceToCenter = clamp(length(position - vec3(0.0, 0.0, 0.0)), 0.0, 1.0);',
-    'portalPosition = (modelMatrix * vec4(0.0, 0.0, 0.0, 1.0)).xyz;',
-    'vDistance = length(portalPosition - cameraPosition);',
-    'vWorldPosition = (modelMatrix * vec4(position, 1.0)).xyz;',
-    'gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',
-    '}'
-  ].join('\n'),
-
-  fragmentShader: [
-    '#define RECIPROCAL_PI2 0.15915494',
-    'uniform sampler2D pano;',
-    'uniform vec3 strokeColor;',
-    'uniform vec3 backgroundColor;',
-    'uniform float borderEnabled;',
-    'varying float vDistanceToCenter;',
-    'varying float vDistance;',
-    'varying vec3 vWorldPosition;',
-    'void main() {',
-    'vec3 direction = normalize(vWorldPosition - cameraPosition);',
-    'vec2 sampleUV;',
-    'float borderThickness = clamp(exp(-vDistance / 50.0), 0.6, 0.95);',
-    'sampleUV.y = saturate(direction.y * 0.5  + 0.5);',
-    'sampleUV.x = atan(direction.z, -direction.x) * -RECIPROCAL_PI2 + 0.5;',
-    'if (vDistanceToCenter > borderThickness && borderEnabled == 1.0) {',
-    'gl_FragColor = vec4(strokeColor, 1.0);',
-    '} else {',
-    'gl_FragColor = mix(texture2D(pano, sampleUV), vec4(backgroundColor, 1.0), clamp(pow((vDistance / 15.0), 2.0), 0.0, 1.0));',
-    '}',
-    '}'
-  ].join('\n')
-});
-/* eslint-enable */
-
-},{"../core/component":125,"../core/shader":134,"../lib/three":173}],89:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-var bind = utils.bind;
-var PolyfillControls = _dereq_('../utils').device.PolyfillControls;
-
-// To avoid recalculation at every mouse movement tick
-var GRABBING_CLASS = 'a-grabbing';
-var PI_2 = Math.PI / 2;
-var radToDeg = THREE.Math.radToDeg;
-
-var checkHasPositionalTracking = utils.device.checkHasPositionalTracking;
-
-/**
- * look-controls. Update entity pose, factoring mouse, touch, and WebVR API data.
- */
-module.exports.Component = registerComponent('look-controls', {
-  dependencies: ['position', 'rotation'],
-
-  schema: {
-    enabled: {default: true},
-    touchEnabled: {default: true},
-    hmdEnabled: {default: true},
-    pointerLockEnabled: {default: false},
-    reverseMouseDrag: {default: false}
-  },
-
-  init: function () {
-    this.previousHMDPosition = new THREE.Vector3();
-    this.hmdQuaternion = new THREE.Quaternion();
-    this.hmdEuler = new THREE.Euler();
-    this.position = new THREE.Vector3();
-    // To save / restore camera pose
-    this.savedRotation = new THREE.Vector3();
-    this.savedPosition = new THREE.Vector3();
-    this.polyfillObject = new THREE.Object3D();
-    this.polyfillControls = new PolyfillControls(this.polyfillObject);
-    this.rotation = {};
-    this.deltaRotation = {};
-    this.savedPose = null;
-    this.pointerLocked = false;
-    this.setupMouseControls();
-    this.bindMethods();
-
-    // Call enter VR handler if the scene has entered VR before the event listeners attached.
-    if (this.el.sceneEl.is('vr-mode')) { this.onEnterVR(); }
-  },
-
-  update: function (oldData) {
-    var data = this.data;
-
-    // Disable grab cursor classes if no longer enabled.
-    if (data.enabled !== oldData.enabled) {
-      this.updateGrabCursor(data.enabled);
-    }
-
-    // Reset pitch and yaw if disabling HMD.
-    if (oldData && !data.hmdEnabled && !oldData.hmdEnabled) {
-      this.pitchObject.rotation.set(0, 0, 0);
-      this.yawObject.rotation.set(0, 0, 0);
-    }
-
-    if (oldData && !data.pointerLockEnabled !== oldData.pointerLockEnabled) {
-      this.removeEventListeners();
-      this.addEventListeners();
-      if (this.pointerLocked) { document.exitPointerLock(); }
-    }
-  },
-
-  tick: function (t) {
-    var data = this.data;
-    if (!data.enabled) { return; }
-    this.updateOrientation();
-  },
-
-  play: function () {
-    this.addEventListeners();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-  },
-
-  remove: function () {
-    this.removeEventListeners();
-  },
-
-  bindMethods: function () {
-    this.onMouseDown = bind(this.onMouseDown, this);
-    this.onMouseMove = bind(this.onMouseMove, this);
-    this.onMouseUp = bind(this.onMouseUp, this);
-    this.onTouchStart = bind(this.onTouchStart, this);
-    this.onTouchMove = bind(this.onTouchMove, this);
-    this.onTouchEnd = bind(this.onTouchEnd, this);
-    this.onEnterVR = bind(this.onEnterVR, this);
-    this.onExitVR = bind(this.onExitVR, this);
-    this.onPointerLockChange = bind(this.onPointerLockChange, this);
-    this.onPointerLockError = bind(this.onPointerLockError, this);
-  },
-
- /**
-  * Set up states and Object3Ds needed to store rotation data.
-  */
-  setupMouseControls: function () {
-    this.mouseDown = false;
-    this.pitchObject = new THREE.Object3D();
-    this.yawObject = new THREE.Object3D();
-    this.yawObject.position.y = 10;
-    this.yawObject.add(this.pitchObject);
-  },
-
-  /**
-   * Add mouse and touch event listeners to canvas.
-   */
-  addEventListeners: function () {
-    var sceneEl = this.el.sceneEl;
-    var canvasEl = sceneEl.canvas;
-
-    // Wait for canvas to load.
-    if (!canvasEl) {
-      sceneEl.addEventListener('render-target-loaded', bind(this.addEventListeners, this));
-      return;
-    }
-
-    // Mouse events.
-    canvasEl.addEventListener('mousedown', this.onMouseDown, false);
-    window.addEventListener('mousemove', this.onMouseMove, false);
-    window.addEventListener('mouseup', this.onMouseUp, false);
-
-    // Touch events.
-    canvasEl.addEventListener('touchstart', this.onTouchStart);
-    window.addEventListener('touchmove', this.onTouchMove);
-    window.addEventListener('touchend', this.onTouchEnd);
-
-    // sceneEl events.
-    sceneEl.addEventListener('enter-vr', this.onEnterVR);
-    sceneEl.addEventListener('exit-vr', this.onExitVR);
-
-    // Pointer Lock events.
-    if (this.data.pointerLockEnabled) {
-      document.addEventListener('pointerlockchange', this.onPointerLockChange, false);
-      document.addEventListener('mozpointerlockchange', this.onPointerLockChange, false);
-      document.addEventListener('pointerlockerror', this.onPointerLockError, false);
-    }
-  },
-
-  /**
-   * Remove mouse and touch event listeners from canvas.
-   */
-  removeEventListeners: function () {
-    var sceneEl = this.el.sceneEl;
-    var canvasEl = sceneEl && sceneEl.canvas;
-
-    if (!canvasEl) { return; }
-
-    // Mouse events.
-    canvasEl.removeEventListener('mousedown', this.onMouseDown);
-    window.removeEventListener('mousemove', this.onMouseMove);
-    window.removeEventListener('mouseup', this.onMouseUp);
-
-    // Touch events.
-    canvasEl.removeEventListener('touchstart', this.onTouchStart);
-    window.removeEventListener('touchmove', this.onTouchMove);
-    window.removeEventListener('touchend', this.onTouchEnd);
-
-    // sceneEl events.
-    sceneEl.removeEventListener('enter-vr', this.onEnterVR);
-    sceneEl.removeEventListener('exit-vr', this.onExitVR);
-
-    // Pointer Lock events.
-    document.removeEventListener('pointerlockchange', this.onPointerLockChange, false);
-    document.removeEventListener('mozpointerlockchange', this.onPointerLockChange, false);
-    document.removeEventListener('pointerlockerror', this.onPointerLockError, false);
-  },
-
-  /**
-   * Update orientation for mobile, mouse drag, and headset.
-   * Mouse-drag only enabled if HMD is not active.
-   */
-  updateOrientation: function () {
-    var hmdEuler = this.hmdEuler;
-    var pitchObject = this.pitchObject;
-    var yawObject = this.yawObject;
-    var sceneEl = this.el.sceneEl;
-    var rotation = this.rotation;
-
-    // In VR mode, THREE is in charge of updating the camera rotation.
-    if (sceneEl.is('vr-mode') && sceneEl.checkHeadsetConnected()) { return; }
-
-    // Calculate polyfilled HMD quaternion.
-    this.polyfillControls.update();
-    hmdEuler.setFromQuaternion(this.polyfillObject.quaternion, 'YXZ');
-    // On mobile, do camera rotation with touch events and sensors.
-    rotation.x = radToDeg(hmdEuler.x) + radToDeg(pitchObject.rotation.x);
-    rotation.y = radToDeg(hmdEuler.y) + radToDeg(yawObject.rotation.y);
-    rotation.z = 0;
-
-    this.el.setAttribute('rotation', rotation);
-  },
-
-  /**
-   * Translate mouse drag into rotation.
-   *
-   * Dragging up and down rotates the camera around the X-axis (yaw).
-   * Dragging left and right rotates the camera around the Y-axis (pitch).
-   */
-  onMouseMove: function (event) {
-    var pitchObject = this.pitchObject;
-    var yawObject = this.yawObject;
-    var previousMouseEvent = this.previousMouseEvent;
-    var movementX;
-    var movementY;
-
-    // Not dragging or not enabled.
-    if (!this.data.enabled || (!this.mouseDown && !this.pointerLocked)) { return; }
-
-     // Calculate delta.
-    movementX = event.movementX || event.mozMovementX;
-    movementY = event.movementY || event.mozMovementY;
-    if (movementX === undefined || movementY === undefined) {
-      movementX = event.screenX - previousMouseEvent.screenX;
-      movementY = event.screenY - previousMouseEvent.screenY;
-    }
-    this.previousMouseEvent = event;
-
-    // Calculate rotation.
-    yawObject.rotation.y -= movementX * 0.002;
-    pitchObject.rotation.x -= movementY * 0.002;
-    pitchObject.rotation.x = Math.max(-PI_2, Math.min(PI_2, pitchObject.rotation.x));
-  },
-
-  /**
-   * Register mouse down to detect mouse drag.
-   */
-  onMouseDown: function (evt) {
-    if (!this.data.enabled) { return; }
-    // Handle only primary button.
-    if (evt.button !== 0) { return; }
-
-    var sceneEl = this.el.sceneEl;
-    var canvasEl = sceneEl && sceneEl.canvas;
-
-    this.mouseDown = true;
-    this.previousMouseEvent = evt;
-    document.body.classList.add(GRABBING_CLASS);
-
-    if (this.data.pointerLockEnabled && !this.pointerLocked) {
-      if (canvasEl.requestPointerLock) {
-        canvasEl.requestPointerLock();
-      } else if (canvasEl.mozRequestPointerLock) {
-        canvasEl.mozRequestPointerLock();
-      }
-    }
-  },
-
-  /**
-   * Register mouse up to detect release of mouse drag.
-   */
-  onMouseUp: function () {
-    this.mouseDown = false;
-    document.body.classList.remove(GRABBING_CLASS);
-  },
-
-  /**
-   * Register touch down to detect touch drag.
-   */
-  onTouchStart: function (evt) {
-    if (evt.touches.length !== 1 || !this.data.touchEnabled) { return; }
-    this.touchStart = {
-      x: evt.touches[0].pageX,
-      y: evt.touches[0].pageY
-    };
-    this.touchStarted = true;
-  },
-
-  /**
-   * Translate touch move to Y-axis rotation.
-   */
-  onTouchMove: function (evt) {
-    var canvas = this.el.sceneEl.canvas;
-    var deltaY;
-    var yawObject = this.yawObject;
-
-    if (!this.touchStarted || !this.data.touchEnabled) { return; }
-
-    deltaY = 2 * Math.PI * (evt.touches[0].pageX - this.touchStart.x) / canvas.clientWidth;
-
-    // Limit touch orientaion to to yaw (y axis).
-    yawObject.rotation.y -= deltaY * 0.5;
-    this.touchStart = {
-      x: evt.touches[0].pageX,
-      y: evt.touches[0].pageY
-    };
-  },
-
-  /**
-   * Register touch end to detect release of touch drag.
-   */
-  onTouchEnd: function () {
-    this.touchStarted = false;
-  },
-
-  /**
-   * Save pose.
-   */
-  onEnterVR: function () {
-    this.saveCameraPose();
-  },
-
-  /**
-   * Restore the pose.
-   */
-  onExitVR: function () {
-    this.restoreCameraPose();
-    this.previousHMDPosition.set(0, 0, 0);
-  },
-
-  /**
-   * Update Pointer Lock state.
-   */
-  onPointerLockChange: function () {
-    this.pointerLocked = !!(document.pointerLockElement || document.mozPointerLockElement);
-  },
-
-  /**
-   * Recover from Pointer Lock error.
-   */
-  onPointerLockError: function () {
-    this.pointerLocked = false;
-  },
-
-  /**
-   * Toggle the feature of showing/hiding the grab cursor.
-   */
-  updateGrabCursor: function (enabled) {
-    var sceneEl = this.el.sceneEl;
-
-    function enableGrabCursor () { sceneEl.canvas.classList.add('a-grab-cursor'); }
-    function disableGrabCursor () { sceneEl.canvas.classList.remove('a-grab-cursor'); }
-
-    if (!sceneEl.canvas) {
-      if (enabled) {
-        sceneEl.addEventListener('render-target-loaded', enableGrabCursor);
-      } else {
-        sceneEl.addEventListener('render-target-loaded', disableGrabCursor);
-      }
-      return;
-    }
-
-    if (enabled) {
-      enableGrabCursor();
-      return;
-    }
-    disableGrabCursor();
-  },
-
-  /**
-   * Save camera pose before entering VR to restore later if exiting.
-   */
-  saveCameraPose: function () {
-    var el = this.el;
-    var position = el.getAttribute('position');
-    var rotation = el.getAttribute('rotation');
-    var hasPositionalTracking = this.hasPositionalTracking !== undefined ? this.hasPositionalTracking : checkHasPositionalTracking();
-
-    if (this.savedPose || !hasPositionalTracking) { return; }
-    this.savedPose = {
-      position: this.savedPosition.copy(position),
-      rotation: this.savedRotation.copy(rotation)
-    };
-  },
-
-  /**
-   * Reset camera pose to before entering VR.
-   */
-  restoreCameraPose: function () {
-    var el = this.el;
-    var savedPose = this.savedPose;
-    var hasPositionalTracking = this.hasPositionalTracking !== undefined ? this.hasPositionalTracking : checkHasPositionalTracking();
-
-    if (!savedPose || !hasPositionalTracking) { return; }
-
-    // Reset camera orientation.
-    el.setAttribute('position', savedPose.position);
-    el.setAttribute('rotation', savedPose.rotation);
-    this.savedPose = null;
-  }
-});
-
-},{"../core/component":125,"../lib/three":173,"../utils":195,"../utils/":195}],90:[function(_dereq_,module,exports){
-/* global Promise */
-var utils = _dereq_('../utils/');
-var component = _dereq_('../core/component');
-var THREE = _dereq_('../lib/three');
-var shader = _dereq_('../core/shader');
-
-var error = utils.debug('components:material:error');
-var registerComponent = component.registerComponent;
-var shaders = shader.shaders;
-var shaderNames = shader.shaderNames;
-
-/**
- * Material component.
- *
- * @member {object} shader - Determines how material is shaded. Defaults to `standard`,
- *         three.js's implementation of PBR. Another standard shading model is `flat` which
- *         uses MeshBasicMaterial.
- */
-module.exports.Component = registerComponent('material', {
-  schema: {
-    alphaTest: {default: 0.0, min: 0.0, max: 1.0},
-    depthTest: {default: true},
-    depthWrite: {default: true},
-    flatShading: {default: false},
-    npot: {default: false},
-    offset: {type: 'vec2', default: {x: 0, y: 0}},
-    opacity: {default: 1.0, min: 0.0, max: 1.0},
-    repeat: {type: 'vec2', default: {x: 1, y: 1}},
-    shader: {default: 'standard', oneOf: shaderNames},
-    side: {default: 'front', oneOf: ['front', 'back', 'double']},
-    transparent: {default: false},
-    vertexColors: {type: 'string', default: 'none', oneOf: ['face', 'vertex']},
-    visible: {default: true}
-  },
-
-  init: function () {
-    this.material = null;
-  },
-
-  /**
-   * Update or create material.
-   *
-   * @param {object|null} oldData
-   */
-  update: function (oldData) {
-    var data = this.data;
-    if (!this.shader || data.shader !== oldData.shader) {
-      this.updateShader(data.shader);
-    }
-    this.shader.update(this.data);
-    this.updateMaterial(oldData);
-  },
-
-  updateSchema: function (data) {
-    var newShader = data.shader;
-    var currentShader = this.data && this.data.shader;
-    var shader = newShader || currentShader;
-    var schema = shaders[shader] && shaders[shader].schema;
-    if (!schema) { error('Unknown shader schema ' + shader); }
-    if (currentShader && newShader === currentShader) { return; }
-    this.extendSchema(schema);
-    this.updateBehavior();
-  },
-
-  updateBehavior: function () {
-    var schema = this.schema;
-    var self = this;
-    var sceneEl = this.el.sceneEl;
-    var tickProperties = {};
-    var tick = function (time, delta) {
-      Object.keys(tickProperties).forEach(function update (key) {
-        tickProperties[key] = time;
-      });
-      self.shader.update(tickProperties);
-    };
-    this.tick = undefined;
-    Object.keys(schema).forEach(function (key) {
-      if (schema[key].type === 'time') {
-        self.tick = tick;
-        tickProperties[key] = true;
-      }
-    });
-    if (!sceneEl) { return; }
-    if (!this.tick) {
-      sceneEl.removeBehavior(this);
-    } else {
-      sceneEl.addBehavior(this);
-    }
-  },
-
-  updateShader: function (shaderName) {
-    var data = this.data;
-    var Shader = shaders[shaderName] && shaders[shaderName].Shader;
-    var shaderInstance;
-
-    if (!Shader) { throw new Error('Unknown shader ' + shaderName); }
-
-    // Get material from A-Frame shader.
-    shaderInstance = this.shader = new Shader();
-    shaderInstance.el = this.el;
-    shaderInstance.init(data);
-    this.setMaterial(shaderInstance.material);
-    this.updateSchema(data);
-  },
-
-  /**
-   * Set and update base material properties.
-   * Set `needsUpdate` when needed.
-   */
-  updateMaterial: function (oldData) {
-    var data = this.data;
-    var material = this.material;
-
-    // Base material properties.
-    material.alphaTest = data.alphaTest;
-    material.depthTest = data.depthTest !== false;
-    material.depthWrite = data.depthWrite !== false;
-    material.opacity = data.opacity;
-    material.flatShading = data.flatShading;
-    material.side = parseSide(data.side);
-    material.transparent = data.transparent !== false || data.opacity < 1.0;
-    material.vertexColors = parseVertexColors(data.vertexColors);
-    material.visible = data.visible;
-
-    // Check if material needs update.
-    if (Object.keys(oldData).length &&
-        (oldData.alphaTest !== data.alphaTest ||
-         oldData.side !== data.side ||
-         oldData.vertexColors !== data.vertexColors)) {
-      material.needsUpdate = true;
-    }
-  },
-
-  /**
-   * Remove material on remove (callback).
-   * Dispose of it from memory and unsubscribe from scene updates.
-   */
-  remove: function () {
-    var defaultMaterial = new THREE.MeshBasicMaterial();
-    var material = this.material;
-    var object3D = this.el.getObject3D('mesh');
-    if (object3D) { object3D.material = defaultMaterial; }
-    disposeMaterial(material, this.system);
-  },
-
-  /**
-   * (Re)create new material. Has side-effects of setting `this.material` and updating
-   * material registration in scene.
-   *
-   * @param {object} data - Material component data.
-   * @param {object} type - Material type to create.
-   * @returns {object} Material.
-   */
-  setMaterial: function (material) {
-    var el = this.el;
-    var mesh;
-    var system = this.system;
-
-    if (this.material) { disposeMaterial(this.material, system); }
-
-    this.material = material;
-    system.registerMaterial(material);
-
-    // Set on mesh. If mesh does not exist, wait for it.
-    mesh = el.getObject3D('mesh');
-    if (mesh) {
-      mesh.material = material;
-    } else {
-      el.addEventListener('object3dset', function waitForMesh (evt) {
-        if (evt.detail.type !== 'mesh' || evt.target !== el) { return; }
-        el.getObject3D('mesh').material = material;
-        el.removeEventListener('object3dset', waitForMesh);
-      });
-    }
-  }
-});
-
-/**
- * Return a three.js constant determining which material face sides to render
- * based on the side parameter (passed as a component property).
- *
- * @param {string} [side=front] - `front`, `back`, or `double`.
- * @returns {number} THREE.FrontSide, THREE.BackSide, or THREE.DoubleSide.
- */
-function parseSide (side) {
-  switch (side) {
-    case 'back': {
-      return THREE.BackSide;
-    }
-    case 'double': {
-      return THREE.DoubleSide;
-    }
-    default: {
-      // Including case `front`.
-      return THREE.FrontSide;
-    }
-  }
-}
-
-/**
- * Return a three.js constant determining vertex coloring.
- */
-function parseVertexColors (coloring) {
-  switch (coloring) {
-    case 'face': {
-      return THREE.FaceColors;
-    }
-    case 'vertex': {
-      return THREE.VertexColors;
-    }
-    default: {
-      return THREE.NoColors;
-    }
-  }
-}
-
-/**
- * Dispose of material from memory and unsubscribe material from scene updates like fog.
- */
-function disposeMaterial (material, system) {
-  material.dispose();
-  system.unregisterMaterial(material);
-}
-
-},{"../core/component":125,"../core/shader":134,"../lib/three":173,"../utils/":195}],91:[function(_dereq_,module,exports){
-var debug = _dereq_('../utils/debug');
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-
-var warn = debug('components:obj-model:warn');
-
-module.exports.Component = registerComponent('obj-model', {
-  schema: {
-    mtl: {type: 'model'},
-    obj: {type: 'model'}
-  },
-
-  init: function () {
-    this.model = null;
-    this.objLoader = new THREE.OBJLoader();
-    this.mtlLoader = new THREE.MTLLoader(this.objLoader.manager);
-    // Allow cross-origin images to be loaded.
-    this.mtlLoader.crossOrigin = '';
-  },
-
-  update: function () {
-    var data = this.data;
-    if (!data.obj) { return; }
-    this.remove();
-    this.loadObj(data.obj, data.mtl);
-  },
-
-  remove: function () {
-    if (!this.model) { return; }
-    this.el.removeObject3D('mesh');
-  },
-
-  loadObj: function (objUrl, mtlUrl) {
-    var self = this;
-    var el = this.el;
-    var mtlLoader = this.mtlLoader;
-    var objLoader = this.objLoader;
-
-    if (mtlUrl) {
-      // .OBJ with an .MTL.
-      if (el.hasAttribute('material')) {
-        warn('Material component properties are ignored when a .MTL is provided');
-      }
-      mtlLoader.setTexturePath(mtlUrl.substr(0, mtlUrl.lastIndexOf('/') + 1));
-      mtlLoader.load(mtlUrl, function (materials) {
-        materials.preload();
-        objLoader.setMaterials(materials);
-        objLoader.load(objUrl, function (objModel) {
-          self.model = objModel;
-          el.setObject3D('mesh', objModel);
-          el.emit('model-loaded', {format: 'obj', model: objModel});
-        });
-      });
-      return;
-    }
-
-    // .OBJ only.
-    objLoader.load(objUrl, function loadObjOnly (objModel) {
-      // Apply material.
-      var material = el.components.material;
-      if (material) {
-        objModel.traverse(function (child) {
-          if (child instanceof THREE.Mesh) {
-            child.material = material.material;
-          }
-        });
-      }
-
-      self.model = objModel;
-      el.setObject3D('mesh', objModel);
-      el.emit('model-loaded', {format: 'obj', model: objModel});
-    });
-  }
-});
-
-},{"../core/component":125,"../lib/three":173,"../utils/debug":191}],92:[function(_dereq_,module,exports){
-var bind = _dereq_('../utils/bind');
-var registerComponent = _dereq_('../core/component').registerComponent;
-var trackedControlsUtils = _dereq_('../utils/tracked-controls');
-var onButtonEvent = trackedControlsUtils.onButtonEvent;
-
-var TOUCH_CONTROLLER_MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/oculus/oculus-touch-controller-';
-var TOUCH_CONTROLLER_MODEL_OBJ_URL_L = TOUCH_CONTROLLER_MODEL_BASE_URL + 'left.obj';
-var TOUCH_CONTROLLER_MODEL_OBJ_MTL_L = TOUCH_CONTROLLER_MODEL_BASE_URL + 'left.mtl';
-var TOUCH_CONTROLLER_MODEL_OBJ_URL_R = TOUCH_CONTROLLER_MODEL_BASE_URL + 'right.obj';
-var TOUCH_CONTROLLER_MODEL_OBJ_MTL_R = TOUCH_CONTROLLER_MODEL_BASE_URL + 'right.mtl';
-
-var GAMEPAD_ID_PREFIX = 'Oculus Touch';
-
-var PIVOT_OFFSET = {x: 0, y: -0.015, z: 0.04};
-
-/**
- * Oculus Touch controls.
- * Interface with Oculus Touch controllers and map Gamepad events to
- * controller buttons: thumbstick, trigger, grip, xbutton, ybutton, surface
- * Load a controller model and highlight the pressed buttons.
- */
-module.exports.Component = registerComponent('oculus-touch-controls', {
-  schema: {
-    hand: {default: 'left'},
-    buttonColor: {type: 'color', default: '#999'},  // Off-white.
-    buttonTouchColor: {type: 'color', default: '#8AB'},
-    buttonHighlightColor: {type: 'color', default: '#2DF'},  // Light blue.
-    model: {default: true},
-    rotationOffset: {default: 0}
-  },
-
-  /**
-   * Button IDs:
-   * 0 - thumbstick (which has separate axismove / thumbstickmoved events)
-   * 1 - trigger (with analog value, which goes up to 1)
-   * 2 - grip (with analog value, which goes up to 1)
-   * 3 - X (left) or A (right)
-   * 4 - Y (left) or B (right)
-   * 5 - surface (touch only)
-   */
-  mapping: {
-    left: {
-      axes: {thumbstick: [0, 1]},
-      buttons: ['thumbstick', 'trigger', 'grip', 'xbutton', 'ybutton', 'surface']
-    },
-    right: {
-      axes: {thumbstick: [0, 1]},
-      buttons: ['thumbstick', 'trigger', 'grip', 'abutton', 'bbutton', 'surface']
-    }
-  },
-
-  bindMethods: function () {
-    this.onModelLoaded = bind(this.onModelLoaded, this);
-    this.onControllersUpdate = bind(this.onControllersUpdate, this);
-    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-  },
-
-  init: function () {
-    var self = this;
-    this.onButtonChanged = bind(this.onButtonChanged, this);
-    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self, self.data.hand); };
-    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self, self.data.hand); };
-    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self, self.data.hand); };
-    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self, self.data.hand); };
-    this.controllerPresent = false;
-    this.lastControllerCheck = 0;
-    this.previousButtonValues = {};
-    this.bindMethods();
-
-    // Allow mock.
-    this.emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;
-    this.checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;
-  },
-
-  addEventListeners: function () {
-    var el = this.el;
-    el.addEventListener('buttonchanged', this.onButtonChanged);
-    el.addEventListener('buttondown', this.onButtonDown);
-    el.addEventListener('buttonup', this.onButtonUp);
-    el.addEventListener('touchstart', this.onButtonTouchStart);
-    el.addEventListener('touchend', this.onButtonTouchEnd);
-    el.addEventListener('axismove', this.onAxisMoved);
-    el.addEventListener('model-loaded', this.onModelLoaded);
-    this.controllerEventsActive = true;
-  },
-
-  removeEventListeners: function () {
-    var el = this.el;
-    el.removeEventListener('buttonchanged', this.onButtonChanged);
-    el.removeEventListener('buttondown', this.onButtonDown);
-    el.removeEventListener('buttonup', this.onButtonUp);
-    el.removeEventListener('touchstart', this.onButtonTouchStart);
-    el.removeEventListener('touchend', this.onButtonTouchEnd);
-    el.removeEventListener('axismove', this.onAxisMoved);
-    el.removeEventListener('model-loaded', this.onModelLoaded);
-    this.controllerEventsActive = false;
-  },
-
-  checkIfControllerPresent: function () {
-    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {
-      hand: this.data.hand
-    });
-  },
-
-  play: function () {
-    this.checkIfControllerPresent();
-    this.addControllersUpdateListener();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-    this.removeControllersUpdateListener();
-  },
-
-  updateControllerModel: function () {
-    var objUrl, mtlUrl;
-    if (!this.data.model) { return; }
-    if (this.data.hand === 'right') {
-      objUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_URL_R + ')';
-      mtlUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_MTL_R + ')';
-    } else {
-      objUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_URL_L + ')';
-      mtlUrl = 'url(' + TOUCH_CONTROLLER_MODEL_OBJ_MTL_L + ')';
-    }
-    this.el.setAttribute('obj-model', {obj: objUrl, mtl: mtlUrl});
-  },
-
-  injectTrackedControls: function () {
-    var data = this.data;
-    var offset = data.hand === 'right' ? -90 : 90;
-    this.el.setAttribute('tracked-controls', {
-      id: data.hand === 'right' ? 'Oculus Touch (Right)' : 'Oculus Touch (Left)',
-      controller: 0,
-      rotationOffset: data.rotationOffset !== -999 ? data.rotationOffset : offset
-    });
-    this.updateControllerModel();
-  },
-
-  addControllersUpdateListener: function () {
-    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  removeControllersUpdateListener: function () {
-    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  onControllersUpdate: function () {
-    // Note that due to gamepadconnected event propagation issues, we don't rely on events.
-    this.checkIfControllerPresent();
-  },
-
-  onButtonChanged: function (evt) {
-    var button = this.mapping[this.data.hand].buttons[evt.detail.id];
-    var buttonMeshes = this.buttonMeshes;
-    var analogValue;
-
-    if (!button) { return; }
-
-    if (button === 'trigger' || button === 'grip') { analogValue = evt.detail.state.value; }
-
-    // Update trigger and/or grip meshes, if any.
-    if (buttonMeshes) {
-      if (button === 'trigger' && buttonMeshes.trigger) {
-        buttonMeshes.trigger.rotation.x = -analogValue * (Math.PI / 24);
-      }
-      if (button === 'grip' && buttonMeshes.grip) {
-        buttonMeshes.grip.rotation.y = (this.data.hand === 'left' ? -1 : 1) * analogValue * (Math.PI / 60);
-      }
-    }
-
-    // Pass along changed event with button state, using the buttom mapping for convenience.
-    this.el.emit(button + 'changed', evt.detail.state);
-  },
-
-  onModelLoaded: function (evt) {
-    var controllerObject3D = evt.detail.model;
-    var buttonMeshes;
-    if (!this.data.model) { return; }
-
-    var leftHand = this.data.hand === 'left';
-    buttonMeshes = this.buttonMeshes = {};
-
-    buttonMeshes.grip = controllerObject3D.getObjectByName(leftHand ? 'buttonHand_oculus-touch-controller-left.004' : 'buttonHand_oculus-touch-controller-right.005');
-    buttonMeshes.thumbstick = controllerObject3D.getObjectByName(leftHand ? 'stick_oculus-touch-controller-left.007' : 'stick_oculus-touch-controller-right.004');
-    buttonMeshes.trigger = controllerObject3D.getObjectByName(leftHand ? 'buttonTrigger_oculus-touch-controller-left.005' : 'buttonTrigger_oculus-touch-controller-right.006');
-    buttonMeshes.xbutton = controllerObject3D.getObjectByName('buttonX_oculus-touch-controller-left.002');
-    buttonMeshes.abutton = controllerObject3D.getObjectByName('buttonA_oculus-touch-controller-right.002');
-    buttonMeshes.ybutton = controllerObject3D.getObjectByName('buttonY_oculus-touch-controller-left.001');
-    buttonMeshes.bbutton = controllerObject3D.getObjectByName('buttonB_oculus-touch-controller-right.003');
-
-    // Offset pivot point
-    controllerObject3D.position = PIVOT_OFFSET;
-  },
-
-  onAxisMoved: function (evt) {
-    this.emitIfAxesChanged(this, this.mapping[this.data.hand].axes, evt);
-  },
-
-  updateModel: function (buttonName, evtName) {
-    if (!this.data.model) { return; }
-    this.updateButtonModel(buttonName, evtName);
-  },
-
-  updateButtonModel: function (buttonName, state) {
-    var color = (state === 'up' || state === 'touchend') ? this.data.buttonColor : state === 'touchstart' ? this.data.buttonTouchColor : this.data.buttonHighlightColor;
-    var buttonMeshes = this.buttonMeshes;
-    if (!this.data.model) { return; }
-    if (buttonMeshes && buttonMeshes[buttonName]) {
-      buttonMeshes[buttonName].material.color.set(color);
-    }
-  }
-});
-
-},{"../core/component":125,"../utils/bind":189,"../utils/tracked-controls":200}],93:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-
-module.exports.Component = registerComponent('position', {
-  schema: {type: 'vec3'},
-
-  update: function () {
-    var object3D = this.el.object3D;
-    var data = this.data;
-    object3D.position.set(data.x, data.y, data.z);
-  }
-});
-
-},{"../core/component":125}],94:[function(_dereq_,module,exports){
-/* global MutationObserver */
-
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-
-var warn = utils.debug('components:raycaster:warn');
-
-// Defines selectors that should be 'safe' for the MutationObserver used to
-// refresh the whitelist. Matches classnames, IDs, and presence of attributes.
-// Selectors for the value of an attribute, like [position=0 2 0], cannot be
-// reliably detected and are therefore disallowed.
-var OBSERVER_SELECTOR_RE = /^[\w\s-.,[\]#]*$/;
-
-// Configuration for the MutationObserver used to refresh the whitelist.
-// Listens for addition/removal of elements and attributes within the scene.
-var OBSERVER_CONFIG = {
-  childList: true,
-  attributes: true,
-  subtree: true
-};
-
-/**
- * Raycaster component.
- *
- * Pass options to three.js Raycaster including which objects to test.
- * Poll for intersections.
- * Emit event on origin entity and on target entity on intersect.
- *
- * @member {array} intersectedEls - List of currently intersected entities.
- * @member {array} objects - Cached list of meshes to intersect.
- * @member {number} prevCheckTime - Previous time intersection was checked. To help interval.
- * @member {object} raycaster - three.js Raycaster.
- */
-module.exports.Component = registerComponent('raycaster', {
-  schema: {
-    autoRefresh: {default: true},
-    direction: {type: 'vec3', default: {x: 0, y: 0, z: -1}},
-    enabled: {default: true},
-    far: {default: 1000},
-    interval: {default: 0},
-    near: {default: 0},
-    objects: {default: ''},
-    origin: {type: 'vec3'},
-    recursive: {default: true},
-    showLine: {default: false},
-    useWorldCoordinates: {default: false}
-  },
-
-  init: function () {
-    this.clearedIntersectedEls = [];
-    this.unitLineEndVec3 = new THREE.Vector3();
-    this.intersectedEls = [];
-    this.intersections = [];
-    this.newIntersectedEls = [];
-    this.newIntersections = [];
-    this.objects = [];
-    this.prevCheckTime = undefined;
-    this.prevIntersectedEls = [];
-    this.raycaster = new THREE.Raycaster();
-    this.updateOriginDirection();
-    this.setDirty = this.setDirty.bind(this);
-    this.observer = new MutationObserver(this.setDirty);
-    this.dirty = true;
-    this.lineEndVec3 = new THREE.Vector3();
-    this.otherLineEndVec3 = new THREE.Vector3();
-    this.lineData = {end: this.lineEndVec3};
-
-    this.intersectedClearedDetail = {el: this.el};
-    this.intersectionClearedDetail = {clearedEls: this.clearedIntersectedEls};
-  },
-
-  /**
-   * Create or update raycaster object.
-   */
-  update: function (oldData) {
-    var data = this.data;
-    var el = this.el;
-    var raycaster = this.raycaster;
-
-    // Set raycaster properties.
-    raycaster.far = data.far;
-    raycaster.near = data.near;
-
-    // Draw line.
-    if (data.showLine &&
-        (data.far !== oldData.far || data.origin !== oldData.origin ||
-         data.direction !== oldData.direction || !oldData.showLine)) {
-      // Calculate unit vector for line direction. Can be multiplied via scalar to performantly
-      // adjust line length.
-      this.unitLineEndVec3.copy(data.origin).add(data.direction).normalize();
-      this.drawLine();
-    }
-
-    if (!data.showLine && oldData.showLine) {
-      el.removeAttribute('line');
-    }
-
-    if (data.objects !== oldData.objects && !OBSERVER_SELECTOR_RE.test(data.objects)) {
-      warn('Selector "' + data.objects + '" may not update automatically with DOM changes.');
-    }
-
-    if (data.autoRefresh !== oldData.autoRefresh && el.isPlaying) {
-      data.autoRefresh
-        ? this.addEventListeners()
-        : this.removeEventListeners();
-    }
-
-    this.setDirty();
-  },
-
-  play: function () {
-    this.addEventListeners();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-  },
-
-  remove: function () {
-    if (this.data.showLine) {
-      this.el.removeAttribute('line');
-    }
-  },
-
-  addEventListeners: function () {
-    if (!this.data.autoRefresh) { return; }
-    this.observer.observe(this.el.sceneEl, OBSERVER_CONFIG);
-    this.el.sceneEl.addEventListener('object3dset', this.setDirty);
-    this.el.sceneEl.addEventListener('object3dremove', this.setDirty);
-  },
-
-  removeEventListeners: function () {
-    this.observer.disconnect();
-    this.el.sceneEl.removeEventListener('object3dset', this.setDirty);
-    this.el.sceneEl.removeEventListener('object3dremove', this.setDirty);
-  },
-
-  /**
-   * Mark the object list as dirty, to be refreshed before next raycast.
-   */
-  setDirty: function () {
-    this.dirty = true;
-  },
-
-  /**
-   * Update list of objects to test for intersection.
-   */
-  refreshObjects: function () {
-    var data = this.data;
-    var els;
-
-    // If objects not defined, intersect with everything.
-    els = data.objects
-      ? this.el.sceneEl.querySelectorAll(data.objects)
-      : this.el.sceneEl.children;
-    this.objects = this.flattenChildrenShallow(els);
-    this.dirty = false;
-  },
-
-  /**
-   * Check for intersections and cleared intersections on an interval.
-   */
-  tick: function (time) {
-    var data = this.data;
-    var prevCheckTime = this.prevCheckTime;
-
-    // Only check for intersection if interval time has passed.
-    if (prevCheckTime && (time - prevCheckTime < data.interval)) { return; }
-
-    // Update check time.
-    this.prevCheckTime = time;
-    this.checkIntersections();
-  },
-
-  /**
-   * Raycast for intersections and emit events for current and cleared inersections.
-   */
-  checkIntersections: function () {
-    var clearedIntersectedEls = this.clearedIntersectedEls;
-    var el = this.el;
-    var data = this.data;
-    var i;
-    var intersectedEls = this.intersectedEls;
-    var intersection;
-    var intersections = this.intersections;
-    var lineLength;
-    var newIntersectedEls = this.newIntersectedEls;
-    var newIntersections = this.newIntersections;
-    var prevIntersectedEls = this.prevIntersectedEls;
-    var rawIntersections;
-    var self = this;
-
-    if (!this.data.enabled) { return; }
-
-    // Refresh the object whitelist if needed.
-    if (this.dirty) { this.refreshObjects(); }
-
-    // Store old previously intersected entities.
-    copyArray(this.prevIntersectedEls, this.intersectedEls);
-
-    // Raycast.
-    this.updateOriginDirection();
-    rawIntersections = this.raycaster.intersectObjects(this.objects, data.recursive);
-
-    // Only keep intersections against objects that have a reference to an entity.
-    intersections.length = 0;
-    intersectedEls.length = 0;
-    for (i = 0; i < rawIntersections.length; i++) {
-      intersection = rawIntersections[i];
-      // Don't intersect with own line.
-      if (data.showLine && intersection.object === el.getObject3D('line')) {
-        continue;
-      }
-      if (intersection.object.el) {
-        intersections.push(intersection);
-        intersectedEls.push(intersection.object.el);
-      }
-    }
-
-    // Get newly intersected entities.
-    newIntersections.length = 0;
-    newIntersectedEls.length = 0;
-    for (i = 0; i < intersections.length; i++) {
-      if (prevIntersectedEls.indexOf(intersections[i].object.el) === -1) {
-        newIntersections.push(intersections[i]);
-        newIntersectedEls.push(intersections[i].object.el);
-      }
-    }
-
-    // Emit intersection cleared on both entities per formerly intersected entity.
-    clearedIntersectedEls.length = 0;
-    for (i = 0; i < prevIntersectedEls.length; i++) {
-      if (intersectedEls.indexOf(prevIntersectedEls[i]) !== -1) { continue; }
-      prevIntersectedEls[i].emit('raycaster-intersected-cleared',
-                                 this.intersectedClearedDetail);
-      clearedIntersectedEls.push(prevIntersectedEls[i]);
-    }
-    if (clearedIntersectedEls.length) {
-      el.emit('raycaster-intersection-cleared', this.intersectionClearedDetail);
-    }
-
-    // Emit intersected on intersected entity per intersected entity.
-    for (i = 0; i < newIntersectedEls.length; i++) {
-      newIntersectedEls[i].emit('raycaster-intersected', {
-        el: el,
-        intersection: newIntersections[i]
-      });
-    }
-
-    // Emit all intersections at once on raycasting entity.
-    if (newIntersections.length) {
-      el.emit('raycaster-intersection', {
-        els: newIntersectedEls,
-        intersections: newIntersections
-      });
-    }
-
-    // Update line length.
-    setTimeout(function () {
-      if (self.data.showLine) {
-        if (intersections.length) {
-          if (intersections[0].object.el === el && intersections[1]) {
-            lineLength = intersections[1].distance;
-          } else {
-            lineLength = intersections[0].distance;
-          }
-        }
-        self.drawLine(lineLength);
-      }
-    });
-  },
-
-  /**
-   * Update origin and direction of raycaster using entity transforms and supplied origin or
-   * direction offsets.
-   */
-  updateOriginDirection: (function () {
-    var direction = new THREE.Vector3();
-    var originVec3 = new THREE.Vector3();
-
-    // Closure to make quaternion/vector3 objects private.
-    return function updateOriginDirection () {
-      var el = this.el;
-      var data = this.data;
-
-      if (data.useWorldCoordinates) {
-        this.raycaster.set(data.origin, data.direction);
-        return;
-      }
-
-      // Grab the position and rotation.
-      el.object3D.updateMatrixWorld();
-      el.object3D.getWorldPosition(originVec3);
-
-      // If non-zero origin, translate the origin into world space.
-      if (data.origin.x !== 0 || data.origin.y !== 0 || data.origin.z !== 0) {
-        originVec3 = el.object3D.localToWorld(originVec3.copy(data.origin));
-      }
-
-      // three.js raycaster direction is relative to 0, 0, 0 NOT the origin / offset we
-      // provide. Apply the offset to the direction, then rotation from the object,
-      // and normalize.
-      direction.copy(data.direction).transformDirection(el.object3D.matrixWorld).normalize();
-
-      // Apply offset and direction, in world coordinates.
-      this.raycaster.set(originVec3, direction);
-    };
-  })(),
-
-  /**
-   * Create or update line to give raycaster visual representation.
-   * Customize the line through through line component.
-   * We draw the line in the raycaster component to customize the line to the
-   * raycaster's origin, direction, and far.
-   *
-   * Unlike the raycaster, we create the line as a child of the object. The line will
-   * be affected by the transforms of the objects, so we don't have to calculate transforms
-   * like we do with the raycaster.
-   *
-   * @param {number} length - Length of line. Pass in to shorten the line to the intersection
-   *   point. If not provided, length will default to the max length, `raycaster.far`.
-   */
-  drawLine: function (length) {
-    var data = this.data;
-    var el = this.el;
-    var endVec3;
-
-    // Switch each time vector so line update triggered and to avoid unnecessary vector clone.
-    endVec3 = this.lineData.end === this.lineEndVec3
-      ? this.otherLineEndVec3
-      : this.lineEndVec3;
-
-    // Treat Infinity as 1000m for the line.
-    if (length === undefined) {
-      length = data.far === Infinity ? 1000 : data.far;
-    }
-
-    // Update the length of the line if given. `unitLineEndVec3` is the direction
-    // given by data.direction, then we apply a scalar to give it a length.
-    this.lineData.start = data.origin;
-    this.lineData.end = endVec3.copy(this.unitLineEndVec3).multiplyScalar(length);
-    el.setAttribute('line', this.lineData);
-  },
-
-  /**
-   * Return children of each element's object3D group. Children are flattened
-   * by one level, removing the THREE.Group wrapper, so that non-recursive
-   * raycasting remains useful.
-   *
-   * @param  {Array<Element>} els
-   * @return {Array<THREE.Object3D>}
-   */
-  flattenChildrenShallow: (function () {
-    var groups = [];
-
-    return function (els) {
-      var children;
-      var i;
-      var objects = this.objects;
-
-      // Push meshes onto list of objects to intersect.
-      groups.length = 0;
-      for (i = 0; i < els.length; i++) {
-        if (els[i].object3D) {
-          groups.push(els[i].object3D);
-        }
-      }
-
-      // Each entity's root is a THREE.Group. Return the group's chilrden.
-      objects.length = 0;
-      for (i = 0; i < groups.length; i++) {
-        children = groups[i].children;
-        if (children && children.length) {
-          objects.push.apply(objects, children);
-        }
-      }
-      return objects;
-    };
-  })()
-});
-
-/**
- * Copy contents of one array to another without allocating new array.
- */
-function copyArray (a, b) {
-  var i;
-  a.length = b.length;
-  for (i = 0; i < b.length; i++) {
-    a[i] = b[i];
-  }
-}
-
-},{"../core/component":125,"../lib/three":173,"../utils/":195}],95:[function(_dereq_,module,exports){
-var degToRad = _dereq_('../lib/three').Math.degToRad;
-var registerComponent = _dereq_('../core/component').registerComponent;
-
-module.exports.Component = registerComponent('rotation', {
-  schema: {type: 'vec3'},
-
-  /**
-   * Updates object3D rotation.
-   */
-  update: function () {
-    var data = this.data;
-    var object3D = this.el.object3D;
-    object3D.rotation.set(degToRad(data.x), degToRad(data.y), degToRad(data.z));
-    object3D.rotation.order = 'YXZ';
-  }
-});
-
-},{"../core/component":125,"../lib/three":173}],96:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-
-// Avoids triggering a zero-determinant which makes object3D matrix non-invertible.
-var zeroScale = 0.00001;
-
-module.exports.Component = registerComponent('scale', {
-  schema: {
-    type: 'vec3',
-    default: {x: 1, y: 1, z: 1}
-  },
-
-  update: function () {
-    var data = this.data;
-    var object3D = this.el.object3D;
-    var x = data.x === 0 ? zeroScale : data.x;
-    var y = data.y === 0 ? zeroScale : data.y;
-    var z = data.z === 0 ? zeroScale : data.z;
-    object3D.scale.set(x, y, z);
-  }
-});
-
-},{"../core/component":125}],97:[function(_dereq_,module,exports){
-/* global THREE */
-var register = _dereq_('../../core/component').registerComponent;
-
-module.exports.Component = register('background', {
-  schema: {
-    color: {type: 'color', default: 'black'},
-    transparent: {default: false}
-  },
-  update: function () {
-    var data = this.data;
-    var object3D = this.el.object3D;
-    if (data.transparent) {
-      object3D.background = null;
-      return;
-    }
-    object3D.background = new THREE.Color(data.color);
-  }
-});
-
-},{"../../core/component":125}],98:[function(_dereq_,module,exports){
-var register = _dereq_('../../core/component').registerComponent;
-
-module.exports.Component = register('debug', {
-  schema: {default: true}
-});
-
-},{"../../core/component":125}],99:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../../core/component').registerComponent;
-
-/**
- * Component to embed an a-frame scene within the layout of a 2D page.
- */
-module.exports.Component = registerComponent('embedded', {
-  dependencies: ['vr-mode-ui'],
-
-  schema: {default: true},
-
-  update: function () {
-    var sceneEl = this.el;
-    var enterVREl = sceneEl.querySelector('.a-enter-vr');
-    if (this.data === true) {
-      if (enterVREl) { enterVREl.classList.add('embedded'); }
-      sceneEl.removeFullScreenStyles();
-    } else {
-      if (enterVREl) { enterVREl.classList.remove('embedded'); }
-      sceneEl.addFullScreenStyles();
-    }
-  }
-
-});
-
-},{"../../core/component":125}],100:[function(_dereq_,module,exports){
-var register = _dereq_('../../core/component').registerComponent;
-var THREE = _dereq_('../../lib/three');
-var debug = _dereq_('../../utils/debug');
-
-var warn = debug('components:fog:warn');
-
-/**
- * Fog component.
- * Applies only to the scene entity.
- */
-module.exports.Component = register('fog', {
-  schema: {
-    color: {type: 'color', default: '#000'},
-    density: {default: 0.00025},
-    far: {default: 1000, min: 0},
-    near: {default: 1, min: 0},
-    type: {default: 'linear', oneOf: ['linear', 'exponential']}
-  },
-
-  update: function () {
-    var data = this.data;
-    var el = this.el;
-    var fog = this.el.object3D.fog;
-
-    if (!el.isScene) {
-      warn('Fog component can only be applied to <a-scene>');
-      return;
-    }
-
-    // (Re)create fog if fog doesn't exist or fog type changed.
-    if (!fog || data.type !== fog.name) {
-      el.object3D.fog = getFog(data);
-      el.systems.material.updateMaterials();
-      return;
-    }
-
-    // Fog data changed. Update fog.
-    Object.keys(this.schema).forEach(function (key) {
-      var value = data[key];
-      if (key === 'color') { value = new THREE.Color(value); }
-      fog[key] = value;
-    });
-  },
-
-  /**
-   * Remove fog on remove (callback).
-   */
-  remove: function () {
-    var fog = this.el.object3D.fog;
-    if (!fog) { return; }
-    fog.far = 0;
-    fog.near = 0.1;
-  }
-});
-
-/**
- * Creates a fog object. Sets fog.name to be able to detect fog type changes.
- *
- * @param {object} data - Fog data.
- * @returns {object} fog
- */
-function getFog (data) {
-  var fog;
-  if (data.type === 'exponential') {
-    fog = new THREE.FogExp2(data.color, data.density);
-  } else {
-    fog = new THREE.Fog(data.color, data.near, data.far);
-  }
-  fog.name = data.type;
-  return fog;
-}
-
-},{"../../core/component":125,"../../lib/three":173,"../../utils/debug":191}],101:[function(_dereq_,module,exports){
-(function (process){
-/* global AFRAME */
-var AFRAME_INJECTED = _dereq_('../../constants').AFRAME_INJECTED;
-var bind = _dereq_('../../utils/bind');
-var pkg = _dereq_('../../../package');
-var registerComponent = _dereq_('../../core/component').registerComponent;
-
-/**
- * 0.4.2 to 0.4.x
- * Will need to update this when A-Frame goes to 1.x.x.
- */
-function getFuzzyPatchVersion (version) {
-  var split = version.split('.');
-  split[2] = 'x';
-  return split.join('.');
-}
-
-var INSPECTOR_DEV_URL = 'https://aframe.io/aframe-inspector/dist/aframe-inspector.js';
-var INSPECTOR_RELEASE_URL = 'https://unpkg.com/aframe-inspector@' + getFuzzyPatchVersion(pkg.version) + '/dist/aframe-inspector.min.js';
-var INSPECTOR_URL = process.env.INSPECTOR_VERSION === 'dev' ? INSPECTOR_DEV_URL : INSPECTOR_RELEASE_URL;
-var LOADING_MESSAGE = 'Loading Inspector';
-var LOADING_ERROR_MESSAGE = 'Error loading Inspector';
-
-module.exports.Component = registerComponent('inspector', {
-  schema: {
-    url: {default: INSPECTOR_URL}
-  },
-
-  init: function () {
-    this.onKeydown = bind(this.onKeydown, this);
-    this.onMessage = bind(this.onMessage, this);
-    this.initOverlay();
-    window.addEventListener('keydown', this.onKeydown);
-    window.addEventListener('message', this.onMessage);
-  },
-
-  initOverlay: function () {
-    var dotsHTML = '<span class="dots"><span>.</span><span>.</span><span>.</span></span>';
-    this.loadingMessageEl = document.createElement('div');
-    this.loadingMessageEl.classList.add('a-inspector-loader');
-    this.loadingMessageEl.innerHTML = LOADING_MESSAGE + dotsHTML;
-  },
-
-  remove: function () {
-    this.removeEventListeners();
-  },
-
-  /**
-   * <ctrl> + <alt> + i keyboard shortcut.
-   */
-  onKeydown: function (evt) {
-    var shortcutPressed = evt.keyCode === 73 && evt.ctrlKey && evt.altKey;
-    if (!this.data || !shortcutPressed) { return; }
-    this.injectInspector();
-  },
-
-  showLoader: function () {
-    document.body.appendChild(this.loadingMessageEl);
-  },
-
-  hideLoader: function () {
-    document.body.removeChild(this.loadingMessageEl);
-  },
-
-  /**
-   * postMessage. aframe.io uses this to create a button on examples to open Inspector.
-   */
-  onMessage: function (evt) {
-    if (evt.data === 'INJECT_AFRAME_INSPECTOR') { this.injectInspector(); }
-  },
-
-  injectInspector: function () {
-    var self = this;
-    var script;
-
-    if (AFRAME.INSPECTOR || AFRAME.inspectorInjected) { return; }
-
-    this.showLoader();
-
-    // Inject.
-    script = document.createElement('script');
-    script.src = this.data.url;
-    script.setAttribute('data-name', 'aframe-inspector');
-    script.setAttribute(AFRAME_INJECTED, '');
-    script.onload = function () {
-      AFRAME.INSPECTOR.open();
-      self.hideLoader();
-      self.removeEventListeners();
-    };
-    script.onerror = function () {
-      self.loadingMessageEl.innerHTML = LOADING_ERROR_MESSAGE;
-    };
-    document.head.appendChild(script);
-    AFRAME.inspectorInjected = true;
-  },
-
-  removeEventListeners: function () {
-    window.removeEventListener('keydown', this.onKeydown);
-    window.removeEventListener('message', this.onMessage);
-  }
-});
-
-}).call(this,_dereq_('_process'))
-
-},{"../../../package":75,"../../constants":116,"../../core/component":125,"../../utils/bind":189,"_process":6}],102:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../../core/component').registerComponent;
-var shouldCaptureKeyEvent = _dereq_('../../utils/').shouldCaptureKeyEvent;
-
-module.exports.Component = registerComponent('keyboard-shortcuts', {
-  schema: {
-    enterVR: {default: true},
-    exitVR: {default: true}
-  },
-
-  init: function () {
-    var self = this;
-    var scene = this.el;
-
-    this.listener = window.addEventListener('keyup', function (event) {
-      if (!shouldCaptureKeyEvent(event)) { return; }
-      if (self.enterVREnabled && event.keyCode === 70) {  // f.
-        scene.enterVR();
-      }
-      if (self.enterVREnabled && event.keyCode === 27) {  // escape.
-        scene.exitVR();
-      }
-    }, false);
-  },
-
-  update: function (oldData) {
-    var data = this.data;
-    this.enterVREnabled = data.enterVR;
-  },
-
-  remove: function () {
-    window.removeEventListener('keyup', this.listener);
-  }
-});
-
-},{"../../core/component":125,"../../utils/":195}],103:[function(_dereq_,module,exports){
-var debug = _dereq_('../../utils/debug');
-var registerComponent = _dereq_('../../core/component').registerComponent;
-
-var warn = debug('components:pool:warn');
-
-/**
- * Pool component.
- * A pool of entities that will be reused.
- * It avoids creating and destroying the same kind of entities
- * in dynamic scenes. It will help reduce GC pauses. Useful for example
- * in a game where you want to reuse enemies entities.
- *
- * @member {array} availableEls - Available entities in the pool.
- * @member {array} usedEls - Entities of the pool in use.
- *
- */
-module.exports.Component = registerComponent('pool', {
-  schema: {
-    mixin: {default: ''},
-    size: {default: 0},
-    dynamic: {default: false}
-  },
-
-  multiple: true,
-
-  initPool: function () {
-    var i;
-    var mixin = this.data.mixin;
-    if (!mixin) { return; }
-    this.availableEls = [];
-    this.usedEls = [];
-    for (i = 0; i < this.data.size; ++i) {
-      this.createEntity();
-    }
-  },
-
-  update: function (oldData) {
-    var data = this.data;
-    if (oldData.mixin !== data.mixin || oldData.size !== data.size) {
-      this.initPool();
-    }
-  },
-
-  /**
-   * Add a new entity to the list of available entities.
-   */
-  createEntity: function () {
-    var el = document.createElement('a-entity');
-    el.play = this.wrapPlay(el.play);
-    el.setAttribute('mixin', this.data.mixin);
-    el.setAttribute('visible', false);
-    this.el.appendChild(el);
-    this.availableEls.push(el);
-  },
-
-  /**
-   * Play wrapper for pooled entities. When pausing and playing
-   * a scene we don't want to play the entities that are not in use
-   */
-  wrapPlay: function (playMethod) {
-    var usedEls = this.usedEls;
-    return function () {
-      if (usedEls.indexOf(this) === -1) { return; }
-      playMethod.call(this);
-    };
-  },
-
-  /**
-   * Used to request one of the available entities of the pool
-   */
-  requestEntity: function () {
-    var el;
-    if (this.availableEls.length === 0) {
-      if (this.data.dynamic === false) {
-        warn('Requested entity from empty pool ' + this.name);
-        return;
-      } else {
-        warn('Requested entity from empty pool. This pool is dynamic' +
-        'and will resize automatically. You might want to increase its initial size' + this.name);
-      }
-      this.createEntity();
-    }
-    el = this.availableEls.shift();
-    this.usedEls.push(el);
-    el.setAttribute('visible', true);
-    return el;
-  },
-
-  /**
-   * Used to return a used entity to the pool
-   */
-  returnEntity: function (el) {
-    var index = this.usedEls.indexOf(el);
-    if (index === -1) {
-      warn('The returned entity was not previously pooled from ' + this.name);
-      return;
-    }
-    this.usedEls.splice(index, 1);
-    this.availableEls.push(el);
-    el.setAttribute('visible', false);
-    el.pause();
-  }
-});
-
-},{"../../core/component":125,"../../utils/debug":191}],104:[function(_dereq_,module,exports){
-/* global ImageData, URL */
-var registerComponent = _dereq_('../../core/component').registerComponent;
-var THREE = _dereq_('../../lib/three');
-
-var VERTEX_SHADER = [
-  'attribute vec3 position;',
-  'attribute vec2 uv;',
-  'uniform mat4 projectionMatrix;',
-  'uniform mat4 modelViewMatrix;',
-  'varying vec2 vUv;',
-  'void main()  {',
-  '  vUv = vec2( 1.- uv.x, uv.y );',
-  '  gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
-  '}'
-].join('\n');
-
-var FRAGMENT_SHADER = [
-  'precision mediump float;',
-  'uniform samplerCube map;',
-  'varying vec2 vUv;',
-  '#define M_PI 3.141592653589793238462643383279',
-  'void main() {',
-  '  vec2 uv = vUv;',
-  '  float longitude = uv.x * 2. * M_PI - M_PI + M_PI / 2.;',
-  '  float latitude = uv.y * M_PI;',
-  '  vec3 dir = vec3(',
-  '    - sin( longitude ) * sin( latitude ),',
-  '    cos( latitude ),',
-  '    - cos( longitude ) * sin( latitude )',
-  '  );',
-  '  normalize( dir );',
-  '  gl_FragColor = vec4( textureCube( map, dir ).rgb, 1.0 );',
-  '}'
-].join('\n');
-
-/**
- * Component to take screenshots of the scene using a keboard shortcut (alt+s).
- * It can be configured to either take 360&deg; captures (`equirectangular`)
- * or regular screenshots (`projection`)
- *
- * This is based on https://github.com/spite/THREE.CubemapToEquirectangular
- * To capture an equirectangular projection of the scene a THREE.CubeCamera is used
- * The cube map produced by the CubeCamera is projected on a quad and then rendered to
- * WebGLRenderTarget with an ortographic camera.
- */
-module.exports.Component = registerComponent('screenshot', {
-  schema: {
-    width: {default: 4096},
-    height: {default: 2048},
-    camera: {type: 'selector'}
-  },
-
-  init: function () {
-    var el = this.el;
-    var self = this;
-
-    if (el.renderer) {
-      setup();
-    } else {
-      el.addEventListener('render-target-loaded', setup);
-    }
-
-    function setup () {
-      var gl = el.renderer.getContext();
-      if (!gl) { return; }
-      self.cubeMapSize = gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE);
-      self.material = new THREE.RawShaderMaterial({
-        uniforms: {map: {type: 't', value: null}},
-        vertexShader: VERTEX_SHADER,
-        fragmentShader: FRAGMENT_SHADER,
-        side: THREE.DoubleSide
-      });
-      self.quad = new THREE.Mesh(
-        new THREE.PlaneBufferGeometry(1, 1),
-        self.material
-      );
-      self.quad.visible = false;
-      self.camera = new THREE.OrthographicCamera(-1 / 2, 1 / 2, 1 / 2, -1 / 2, -10000, 10000);
-      self.canvas = document.createElement('canvas');
-      self.ctx = self.canvas.getContext('2d');
-      if (el.camera) { el.camera.add(self.quad); }
-      self.onKeyDown = self.onKeyDown.bind(self);
-      self.onCameraActive = self.onCameraActive.bind(self);
-      el.addEventListener('camera-set-active', self.onCameraActive);
-    }
-  },
-
-  getRenderTarget: function (width, height) {
-    return new THREE.WebGLRenderTarget(width, height, {
-      minFilter: THREE.LinearFilter,
-      magFilter: THREE.LinearFilter,
-      wrapS: THREE.ClampToEdgeWrapping,
-      wrapT: THREE.ClampToEdgeWrapping,
-      format: THREE.RGBAFormat,
-      type: THREE.UnsignedByteType
-    });
-  },
-
-  resize: function (width, height) {
-    // Resize quad.
-    this.quad.scale.set(width, height, 1);
-
-    // Resize camera.
-    this.camera.left = -1 * width / 2;
-    this.camera.right = width / 2;
-    this.camera.top = height / 2;
-    this.camera.bottom = -1 * height / 2;
-    this.camera.updateProjectionMatrix();
-
-    // Resize canvas.
-    this.canvas.width = width;
-    this.canvas.height = height;
-  },
-
-  play: function () {
-    window.addEventListener('keydown', this.onKeyDown);
-  },
-
-  onCameraActive: function (evt) {
-    var cameraParent = this.quad.parent;
-    if (cameraParent) { cameraParent.remove(this.quad); }
-    evt.detail.cameraEl.getObject3D('camera').add(this.quad);
-  },
-
-  /**
-   * <ctrl> + <alt> + s = Regular screenshot.
-   * <ctrl> + <alt> + <shift> + s = Equirectangular screenshot.
-  */
-  onKeyDown: function (evt) {
-    var shortcutPressed = evt.keyCode === 83 && evt.ctrlKey && evt.altKey;
-    if (!this.data || !shortcutPressed) { return; }
-    var projection = evt.shiftKey ? 'equirectangular' : 'perspective';
-    this.capture(projection);
-  },
-
-  /**
-   * Capture a screenshot of the scene.
-   *
-   * @param {string} projection - Screenshot projection (equirectangular or perspective).
-   */
-  setCapture: function (projection) {
-    var el = this.el;
-    var size;
-    var camera;
-    var cubeCamera;
-    // Configure camera.
-    if (projection === 'perspective') {
-      // Quad is only used in equirectangular mode. Hide it in this case.
-      this.quad.visible = false;
-      // Use scene camera.
-      camera = (this.data.camera && this.data.camera.components.camera.camera) || el.camera;
-      size = {width: this.data.width, height: this.data.height};
-    } else {
-      // Use ortho camera.
-      camera = this.camera;
-      // Copy position and rotation of scene camera into the ortho one.
-      camera.position.copy(el.camera.getWorldPosition());
-      camera.rotation.copy(el.camera.getWorldRotation());
-      // Create cube camera and copy position from scene camera.
-      cubeCamera = new THREE.CubeCamera(el.camera.near, el.camera.far,
-                                        Math.min(this.cubeMapSize, 2048));
-      cubeCamera.position.copy(el.camera.getWorldPosition());
-      cubeCamera.rotation.copy(el.camera.getWorldRotation());
-      // Render scene with cube camera.
-      cubeCamera.updateCubeMap(el.renderer, el.object3D);
-      this.quad.material.uniforms.map.value = cubeCamera.renderTarget.texture;
-      size = {width: this.data.width, height: this.data.height};
-      // Use quad to project image taken by the cube camera.
-      this.quad.visible = true;
-    }
-    return {
-      camera: camera,
-      size: size,
-      projection: projection
-    };
-  },
-
-  /**
-   * Maintained for backwards compatibility.
-   */
-  capture: function (projection) {
-    var params = this.setCapture(projection);
-    this.renderCapture(params.camera, params.size, params.projection);
-    // Trigger file download.
-    this.saveCapture();
-  },
-
-  /**
-   * Return canvas instead of triggering download (e.g., for uploading blob to server).
-   */
-  getCanvas: function (projection) {
-    var params = this.setCapture(projection);
-    this.renderCapture(params.camera, params.size, params.projection);
-    return this.canvas;
-  },
-
-  renderCapture: function (camera, size, projection) {
-    var autoClear = this.el.renderer.autoClear;
-    var el = this.el;
-    var imageData;
-    var output;
-    var pixels;
-    var renderer = this.el.renderer;
-    // Create rendering target and buffer to store the read pixels.
-    output = this.getRenderTarget(size.width, size.height);
-    pixels = new Uint8Array(4 * size.width * size.height);
-    // Resize quad, camera, and canvas.
-    this.resize(size.width, size.height);
-    // Render scene to render target.
-    renderer.autoClear = true;
-    renderer.render(el.object3D, camera, output, true);
-    renderer.autoClear = autoClear;
-    // Read image pizels back.
-    renderer.readRenderTargetPixels(output, 0, 0, size.width, size.height, pixels);
-    if (projection === 'perspective') {
-      pixels = this.flipPixelsVertically(pixels, size.width, size.height);
-    }
-    imageData = new ImageData(new Uint8ClampedArray(pixels), size.width, size.height);
-    // Hide quad after projecting the image.
-    this.quad.visible = false;
-    // Copy pixels into canvas.
-    this.ctx.putImageData(imageData, 0, 0);
-  },
-
-  flipPixelsVertically: function (pixels, width, height) {
-    var flippedPixels = pixels.slice(0);
-    for (var x = 0; x < width; ++x) {
-      for (var y = 0; y < height; ++y) {
-        flippedPixels[x * 4 + y * width * 4] = pixels[x * 4 + (height - y) * width * 4];
-        flippedPixels[x * 4 + 1 + y * width * 4] = pixels[x * 4 + 1 + (height - y) * width * 4];
-        flippedPixels[x * 4 + 2 + y * width * 4] = pixels[x * 4 + 2 + (height - y) * width * 4];
-        flippedPixels[x * 4 + 3 + y * width * 4] = pixels[x * 4 + 3 + (height - y) * width * 4];
-      }
-    }
-    return flippedPixels;
-  },
-
-  /**
-   * Download capture to file.
-   */
-  saveCapture: function () {
-    this.canvas.toBlob(function (blob) {
-      var fileName = 'screenshot-' + document.title.toLowerCase() + '-' + Date.now() + '.png';
-      var linkEl = document.createElement('a');
-      var url = URL.createObjectURL(blob);
-      linkEl.href = url;
-      linkEl.setAttribute('download', fileName);
-      linkEl.innerHTML = 'downloading...';
-      linkEl.style.display = 'none';
-      document.body.appendChild(linkEl);
-      setTimeout(function () {
-        linkEl.click();
-        document.body.removeChild(linkEl);
-      }, 1);
-    }, 'image/png');
-  }
-});
-
-},{"../../core/component":125,"../../lib/three":173}],105:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../../core/component').registerComponent;
-var RStats = _dereq_('../../../vendor/rStats');
-var utils = _dereq_('../../utils');
-_dereq_('../../../vendor/rStats.extras');
-_dereq_('../../lib/rStatsAframe');
-
-var AFrameStats = window.aframeStats;
-var bind = utils.bind;
-var HIDDEN_CLASS = 'a-hidden';
-var ThreeStats = window.threeStats;
-
-/**
- * Stats appended to document.body by RStats.
- */
-module.exports.Component = registerComponent('stats', {
-  schema: {default: true},
-
-  init: function () {
-    var scene = this.el;
-
-    if (utils.getUrlParameter('stats') === 'false') { return; }
-
-    this.stats = createStats(scene);
-    this.statsEl = document.querySelector('.rs-base');
-
-    this.hideBound = bind(this.hide, this);
-    this.showBound = bind(this.show, this);
-
-    scene.addEventListener('enter-vr', this.hideBound);
-    scene.addEventListener('exit-vr', this.showBound);
-  },
-
-  update: function () {
-    if (!this.stats) { return; }
-    return (!this.data) ? this.hide() : this.show();
-  },
-
-  remove: function () {
-    this.el.removeEventListener('enter-vr', this.hideBound);
-    this.el.removeEventListener('exit-vr', this.showBound);
-    if (!this.statsEl) { return; }  // Scene detached.
-    this.statsEl.parentNode.removeChild(this.statsEl);
-  },
-
-  tick: function () {
-    var stats = this.stats;
-
-    if (!stats) { return; }
-
-    stats('rAF').tick();
-    stats('FPS').frame();
-    stats().update();
-  },
-
-  hide: function () {
-    this.statsEl.classList.add(HIDDEN_CLASS);
-  },
-
-  show: function () {
-    this.statsEl.classList.remove(HIDDEN_CLASS);
-  }
-});
-
-function createStats (scene) {
-  var threeStats = new ThreeStats(scene.renderer);
-  var aframeStats = new AFrameStats(scene);
-  var plugins = scene.isMobile ? [] : [threeStats, aframeStats];
-  return new RStats({
-    css: [],  // Our stylesheet is injected from `src/index.js`.
-    values: {
-      fps: {caption: 'fps', below: 30}
-    },
-    groups: [
-      {caption: 'Framerate', values: ['fps', 'raf']}
-    ],
-    plugins: plugins
-  });
-}
-
-},{"../../../vendor/rStats":202,"../../../vendor/rStats.extras":201,"../../core/component":125,"../../lib/rStatsAframe":172,"../../utils":195}],106:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../../core/component').registerComponent;
-var constants = _dereq_('../../constants/');
-var utils = _dereq_('../../utils/');
-var bind = utils.bind;
-
-var ENTER_VR_CLASS = 'a-enter-vr';
-var ENTER_VR_BTN_CLASS = 'a-enter-vr-button';
-var HIDDEN_CLASS = 'a-hidden';
-var ORIENTATION_MODAL_CLASS = 'a-orientation-modal';
-
-/**
- * UI for entering VR mode.
- */
-module.exports.Component = registerComponent('vr-mode-ui', {
-  dependencies: ['canvas'],
-
-  schema: {
-    enabled: {default: true}
-  },
-
-  init: function () {
-    var self = this;
-    var sceneEl = this.el;
-
-    if (utils.getUrlParameter('ui') === 'false') { return; }
-
-    this.insideLoader = false;
-    this.enterVREl = null;
-    this.orientationModalEl = null;
-    this.bindMethods();
-
-    // Hide/show VR UI when entering/exiting VR mode.
-    sceneEl.addEventListener('enter-vr', this.updateEnterVRInterface);
-    sceneEl.addEventListener('exit-vr', this.updateEnterVRInterface);
-
-    window.addEventListener('message', function (event) {
-      if (event.data.type === 'loaderReady') {
-        self.insideLoader = true;
-        self.remove();
-      }
-    });
-
-    // Modal that tells the user to change orientation if in portrait.
-    window.addEventListener('orientationchange', this.toggleOrientationModalIfNeeded);
-  },
-
-  bindMethods: function () {
-    this.onEnterVRButtonClick = bind(this.onEnterVRButtonClick, this);
-    this.onModalClick = bind(this.onModalClick, this);
-    this.toggleOrientationModalIfNeeded = bind(this.toggleOrientationModalIfNeeded, this);
-    this.updateEnterVRInterface = bind(this.updateEnterVRInterface, this);
-  },
-
-  /**
-   * Exit VR when modal clicked.
-   */
-  onModalClick: function () {
-    this.el.exitVR();
-  },
-
-  /**
-   * Enter VR when modal clicked.
-   */
-  onEnterVRButtonClick: function () {
-    this.el.enterVR();
-  },
-
-  update: function () {
-    var sceneEl = this.el;
-
-    if (!this.data.enabled || this.insideLoader || utils.getUrlParameter('ui') === 'false') {
-      return this.remove();
-    }
-    if (this.enterVREl || this.orientationModalEl) { return; }
-
-    // Add UI if enabled and not already present.
-    this.enterVREl = createEnterVRButton(this.onEnterVRButtonClick);
-    sceneEl.appendChild(this.enterVREl);
-
-    this.orientationModalEl = createOrientationModal(this.onModalClick);
-    sceneEl.appendChild(this.orientationModalEl);
-
-    this.updateEnterVRInterface();
-  },
-
-  remove: function () {
-    [this.enterVREl, this.orientationModalEl].forEach(function (uiElement) {
-      if (uiElement) {
-        uiElement.parentNode.removeChild(uiElement);
-      }
-    });
-  },
-
-  updateEnterVRInterface: function () {
-    this.toggleEnterVRButtonIfNeeded();
-    this.toggleOrientationModalIfNeeded();
-  },
-
-  toggleEnterVRButtonIfNeeded: function () {
-    var sceneEl = this.el;
-    if (!this.enterVREl) { return; }
-    if (sceneEl.is('vr-mode')) {
-      this.enterVREl.classList.add(HIDDEN_CLASS);
-    } else {
-      this.enterVREl.classList.remove(HIDDEN_CLASS);
-    }
-  },
-
-  toggleOrientationModalIfNeeded: function () {
-    var sceneEl = this.el;
-    var orientationModalEl = this.orientationModalEl;
-    if (!orientationModalEl || !sceneEl.isMobile) { return; }
-    if (!utils.device.isLandscape() && sceneEl.is('vr-mode')) {
-      // Show if in VR mode on portrait.
-      orientationModalEl.classList.remove(HIDDEN_CLASS);
-    } else {
-      orientationModalEl.classList.add(HIDDEN_CLASS);
-    }
-  }
-});
-
-/**
- * Create a button that when clicked will enter into stereo-rendering mode for VR.
- *
- * Structure: <div><button></div>
- *
- * @param {function} onClick - click event handler
- * @returns {Element} Wrapper <div>.
- */
-function createEnterVRButton (onClick) {
-  var vrButton;
-  var wrapper;
-
-  // Create elements.
-  wrapper = document.createElement('div');
-  wrapper.classList.add(ENTER_VR_CLASS);
-  wrapper.setAttribute(constants.AFRAME_INJECTED, '');
-  vrButton = document.createElement('button');
-  vrButton.className = ENTER_VR_BTN_CLASS;
-  vrButton.setAttribute('title', 'Enter VR mode with a headset or fullscreen mode on a desktop. Visit https://webvr.rocks or https://webvr.info for more information.');
-  vrButton.setAttribute(constants.AFRAME_INJECTED, '');
-
-  // Insert elements.
-  wrapper.appendChild(vrButton);
-  vrButton.addEventListener('click', function (evt) {
-    onClick();
-  });
-  return wrapper;
-}
-
-/**
- * Creates a modal dialog to request the user to switch to landscape orientation.
- *
- * @param {function} onClick - click event handler
- * @returns {Element} Wrapper <div>.
- */
-function createOrientationModal (onClick) {
-  var modal = document.createElement('div');
-  modal.className = ORIENTATION_MODAL_CLASS;
-  modal.classList.add(HIDDEN_CLASS);
-  modal.setAttribute(constants.AFRAME_INJECTED, '');
-
-  var exit = document.createElement('button');
-  exit.setAttribute(constants.AFRAME_INJECTED, '');
-  exit.innerHTML = 'Exit VR';
-
-  // Exit VR on close.
-  exit.addEventListener('click', onClick);
-
-  modal.appendChild(exit);
-
-  return modal;
-}
-
-},{"../../constants/":116,"../../core/component":125,"../../utils/":195}],107:[function(_dereq_,module,exports){
-var component = _dereq_('../core/component');
-var THREE = _dereq_('../lib/three');
-var bind = _dereq_('../utils/bind');
-var registerComponent = component.registerComponent;
-
-/**
- * Shadow component.
- *
- * When applied to an entity, that entity's geometry and any descendants will cast or receive
- * shadows as specified by the `cast` and `receive` properties.
- */
-module.exports.Component = registerComponent('shadow', {
-  schema: {
-    cast: {default: true},
-    receive: {default: true}
-  },
-
-  init: function () {
-    this.onMeshChanged = bind(this.update, this);
-    this.el.addEventListener('object3dset', this.onMeshChanged);
-    this.system.setShadowMapEnabled(true);
-  },
-
-  update: function () {
-    var data = this.data;
-    this.updateDescendants(data.cast, data.receive);
-  },
-
-  remove: function () {
-    var el = this.el;
-    el.removeEventListener('object3dset', this.onMeshChanged);
-    this.updateDescendants(false, false);
-  },
-
-  updateDescendants: function (cast, receive) {
-    var sceneEl = this.el.sceneEl;
-    this.el.object3D.traverse(function (node) {
-      if (!(node instanceof THREE.Mesh)) { return; }
-
-      node.castShadow = cast;
-      node.receiveShadow = receive;
-
-      // If scene has already rendered, materials must be updated.
-      if (sceneEl.hasLoaded && node.material) {
-        var materials = Array.isArray(node.material) ? node.material : [node.material];
-        for (var i = 0; i < materials.length; i++) {
-          materials[i].needsUpdate = true;
-        }
-      }
-    });
-  }
-});
-
-},{"../core/component":125,"../lib/three":173,"../utils/bind":189}],108:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var debug = _dereq_('../utils/debug');
-var bind = _dereq_('../utils/bind');
-var THREE = _dereq_('../lib/three');
-
-var warn = debug('components:sound:warn');
-
-/**
- * Sound component.
- */
-module.exports.Component = registerComponent('sound', {
-  schema: {
-    autoplay: {default: false},
-    distanceModel: {default: 'inverse',
-      oneOf: ['linear', 'inverse', 'exponential']},
-    loop: {default: false},
-    maxDistance: {default: 10000},
-    on: {default: ''},
-    poolSize: {default: 1},
-    positional: {default: true},
-    refDistance: {default: 1},
-    rolloffFactor: {default: 1},
-    src: {type: 'audio'},
-    volume: {default: 1}
-  },
-
-  multiple: true,
-
-  init: function () {
-    this.listener = null;
-    this.audioLoader = new THREE.AudioLoader();
-    this.pool = new THREE.Group();
-    this.loaded = false;
-    this.mustPlay = false;
-    this.playSound = bind(this.playSound, this);
-  },
-
-  update: function (oldData) {
-    var data = this.data;
-    var srcChanged = data.src !== oldData.src;
-    // Create new sound if not yet created or changing `src`.
-    if (srcChanged) {
-      if (!data.src) {
-        warn('Audio source was not specified with `src`');
-        return;
-      }
-      this.setupSound();
-    }
-
-    this.pool.children.forEach(function (sound) {
-      if (data.positional) {
-        sound.setDistanceModel(data.distanceModel);
-        sound.setMaxDistance(data.maxDistance);
-        sound.setRefDistance(data.refDistance);
-        sound.setRolloffFactor(data.rolloffFactor);
-      }
-      sound.setLoop(data.loop);
-      sound.setVolume(data.volume);
-      sound.isPaused = false;
-    });
-
-    if (data.on !== oldData.on) {
-      this.updateEventListener(oldData.on);
-    }
-    // All sound values set. Load in `src`.
-    if (srcChanged) {
-      var self = this;
-
-      this.loaded = false;
-      this.audioLoader.load(data.src, function (buffer) {
-        self.pool.children.forEach(function (sound) {
-          sound.setBuffer(buffer);
-        });
-        self.loaded = true;
-
-        // Remove this key from cache, otherwise we can't play it again
-        THREE.Cache.remove(data.src);
-        if (self.data.autoplay || self.mustPlay) { self.playSound(); }
-        self.el.emit('sound-loaded');
-      });
-    }
-  },
-
-  pause: function () {
-    this.stopSound();
-    this.removeEventListener();
-  },
-
-  play: function () {
-    if (this.data.autoplay) { this.playSound(); }
-    this.updateEventListener();
-  },
-
-  remove: function () {
-    this.removeEventListener();
-    this.el.removeObject3D(this.attrName);
-    try {
-      this.pool.children.forEach(function (sound) {
-        sound.disconnect();
-      });
-    } catch (e) {
-      // disconnect() will throw if it was never connected initially.
-      warn('Audio source not properly disconnected');
-    }
-  },
-
-  /**
-  *  Update listener attached to the user defined on event.
-  */
-  updateEventListener: function (oldEvt) {
-    var el = this.el;
-    if (oldEvt) { el.removeEventListener(oldEvt, this.playSound); }
-    el.addEventListener(this.data.on, this.playSound);
-  },
-
-  removeEventListener: function () {
-    this.el.removeEventListener(this.data.on, this.playSound);
-  },
-
-  /**
-   * Removes current sound object, creates new sound object, adds to entity.
-   *
-   * @returns {object} sound
-   */
-  setupSound: function () {
-    var el = this.el;
-    var sceneEl = el.sceneEl;
-
-    if (this.pool.children.length > 0) {
-      this.stopSound();
-      el.removeObject3D('sound');
-    }
-
-    // Only want one AudioListener. Cache it on the scene.
-    var listener = this.listener = sceneEl.audioListener || new THREE.AudioListener();
-    sceneEl.audioListener = listener;
-
-    if (sceneEl.camera) {
-      sceneEl.camera.add(listener);
-    }
-
-    // Wait for camera if necessary.
-    sceneEl.addEventListener('camera-set-active', function (evt) {
-      evt.detail.cameraEl.getObject3D('camera').add(listener);
-    });
-
-    // Create [poolSize] audio instances and attach them to pool
-    this.pool = new THREE.Group();
-    for (var i = 0; i < this.data.poolSize; i++) {
-      var sound = this.data.positional ? new THREE.PositionalAudio(listener) : new THREE.Audio(listener);
-      this.pool.add(sound);
-    }
-    el.setObject3D(this.attrName, this.pool);
-
-    this.pool.children.forEach(function (sound) {
-      sound.onEnded = function () {
-        sound.isPlaying = false;
-        el.emit('sound-ended', {index: i});
-      };
-    });
-  },
-
-  /**
-   * Pause all the sounds in the pool.
-   */
-  pauseSound: function () {
-    this.isPlaying = false;
-    this.pool.children.forEach(function (sound) {
-      if (!sound.source || !sound.source.buffer || !sound.isPlaying || sound.isPaused) { return; }
-      sound.isPaused = true;
-      sound.pause();
-    });
-  },
-
-  /**
-   * Look for an unused sound in the pool and play it if found.
-   */
-  playSound: function () {
-    if (!this.loaded) {
-      warn('Sound not loaded yet. It will be played once it finished loading');
-      this.mustPlay = true;
-      return;
-    }
-
-    var found = false;
-    this.isPlaying = true;
-    this.pool.children.forEach(function (sound) {
-      if (!sound.isPlaying && sound.buffer && !found) {
-        sound.play();
-        sound.isPaused = false;
-        found = true;
-        return;
-      }
-    });
-
-    if (!found) {
-      warn('All the sounds are playing. If you need to play more sounds simultaneously ' +
-           'consider increasing the size of pool with the `poolSize` attribute.', this.el);
-      return;
-    }
-
-    this.mustPlay = false;
-  },
-
-  /**
-   * Stop all the sounds in the pool.
-   */
-  stopSound: function () {
-    this.isPlaying = false;
-    this.pool.children.forEach(function (sound) {
-      if (!sound.source || !sound.source.buffer) { return; }
-      sound.stop();
-    });
-  }
-});
-
-},{"../core/component":125,"../lib/three":173,"../utils/bind":189,"../utils/debug":191}],109:[function(_dereq_,module,exports){
-var createTextGeometry = _dereq_('three-bmfont-text');
-var loadBMFont = _dereq_('load-bmfont');
-
-var registerComponent = _dereq_('../core/component').registerComponent;
-var coreShader = _dereq_('../core/shader');
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-
-var error = utils.debug('components:text:error');
-var shaders = coreShader.shaders;
-var warn = utils.debug('components:text:warn');
-
-// 1 to match other A-Frame default widths.
-var DEFAULT_WIDTH = 1;
-
-// @bryik set anisotropy to 16. Improves look of large amounts of text when viewed from angle.
-var MAX_ANISOTROPY = 16;
-
-var FONT_BASE_URL = 'https://cdn.aframe.io/fonts/';
-var FONTS = {
-  aileronsemibold: FONT_BASE_URL + 'Aileron-Semibold.fnt',
-  dejavu: FONT_BASE_URL + 'DejaVu-sdf.fnt',
-  exo2bold: FONT_BASE_URL + 'Exo2Bold.fnt',
-  exo2semibold: FONT_BASE_URL + 'Exo2SemiBold.fnt',
-  kelsonsans: FONT_BASE_URL + 'KelsonSans.fnt',
-  monoid: FONT_BASE_URL + 'Monoid.fnt',
-  mozillavr: FONT_BASE_URL + 'mozillavr.fnt',
-  roboto: FONT_BASE_URL + 'Roboto-msdf.json',
-  sourcecodepro: FONT_BASE_URL + 'SourceCodePro.fnt'
-};
-var MSDF_FONTS = ['roboto'];
-var DEFAULT_FONT = 'roboto';
-module.exports.FONTS = FONTS;
-
-var cache = new PromiseCache();
-var fontWidthFactors = {};
-var textures = {};
-
-/**
- * SDF-based text component.
- * Based on https://github.com/Jam3/three-bmfont-text.
- *
- * All the stock fonts are for the `sdf` registered shader, an improved version of jam3's
- * original `sdf` shader.
- */
-module.exports.Component = registerComponent('text', {
-  multiple: true,
-
-  schema: {
-    align: {type: 'string', default: 'left', oneOf: ['left', 'right', 'center']},
-    alphaTest: {default: 0.5},
-    // `anchor` defaults to center to match geometries.
-    anchor: {default: 'center', oneOf: ['left', 'right', 'center', 'align']},
-    baseline: {default: 'center', oneOf: ['top', 'center', 'bottom']},
-    color: {type: 'color', default: '#FFF'},
-    font: {type: 'string', default: DEFAULT_FONT},
-    // `fontImage` defaults to the font name as a .png (e.g., mozillavr.fnt -> mozillavr.png).
-    fontImage: {type: 'string'},
-    // `height` has no default, will be populated at layout.
-    height: {type: 'number'},
-    letterSpacing: {type: 'number', default: 0},
-    // `lineHeight` defaults to font's `lineHeight` value.
-    lineHeight: {type: 'number'},
-    opacity: {type: 'number', default: 1.0},
-    shader: {default: 'sdf', oneOf: shaders},
-    side: {default: 'front', oneOf: ['front', 'back', 'double']},
-    tabSize: {default: 4},
-    transparent: {default: true},
-    value: {type: 'string'},
-    whiteSpace: {default: 'normal', oneOf: ['normal', 'pre', 'nowrap']},
-    // `width` defaults to geometry width if present, else `DEFAULT_WIDTH`.
-    width: {type: 'number'},
-    // `wrapCount` units are about one default font character. Wrap roughly at this number.
-    wrapCount: {type: 'number', default: 40},
-    // `wrapPixels` will wrap using bmfont pixel units (e.g., dejavu's is 32 pixels).
-    wrapPixels: {type: 'number'},
-    // `xOffset` to add padding.
-    xOffset: {type: 'number', default: 0},
-    // `yOffset` to adjust generated fonts from tools that may have incorrect metrics.
-    yOffset: {type: 'number', default: 0},
-    // `zOffset` will provide a small z offset to avoid z-fighting.
-    zOffset: {type: 'number', default: 0.001}
-  },
-
-  init: function () {
-    this.geometry = createTextGeometry();
-    this.createOrUpdateMaterial();
-    this.mesh = new THREE.Mesh(this.geometry, this.material);
-    this.el.setObject3D(this.attrName, this.mesh);
-  },
-
-  update: function (oldData) {
-    var data = coerceData(this.data);
-    var font = this.currentFont;
-    var fontImage = this.getFontImageSrc();
-
-    if (textures[fontImage]) {
-      this.texture = textures[fontImage];
-    } else {
-      // Create texture per font.
-      this.texture = textures[fontImage] = new THREE.Texture();
-      this.texture.anisotropy = MAX_ANISOTROPY;
-    }
-
-    // Update material.
-    this.createOrUpdateMaterial();
-
-    // New font. `updateFont` will later change data and layout.
-    if (oldData.font !== data.font) {
-      this.updateFont();
-      return;
-    }
-
-    // Update geometry and layout.
-    if (font) {
-      this.updateGeometry(this.geometry, data, font);
-      this.updateLayout(data);
-    }
-  },
-
-  /**
-   * Clean up geometry, material, texture, mesh, objects.
-   */
-  remove: function () {
-    this.geometry.dispose();
-    this.geometry = null;
-    this.el.removeObject3D(this.attrName);
-    this.material.dispose();
-    this.material = null;
-    this.texture.dispose();
-    this.texture = null;
-    if (this.shaderObject) {
-      delete this.shaderObject;
-    }
-  },
-
-  /**
-   * Update the shader of the material.
-   */
-  createOrUpdateMaterial: function () {
-    var data = this.data;
-    var hasChangedShader;
-    var material = this.material;
-    var NewShader;
-    var shaderData;
-    var shaderName;
-
-    // Infer shader if using a stock font (or from `-msdf` filename convention).
-    shaderName = data.shader;
-    if (MSDF_FONTS.indexOf(data.font) !== -1 || data.font.indexOf('-msdf.') >= 0) {
-      shaderName = 'msdf';
-    } else if (data.font in FONTS && MSDF_FONTS.indexOf(data.font) === -1) {
-      shaderName = 'sdf';
-    }
-
-    hasChangedShader = (this.shaderObject && this.shaderObject.name) !== shaderName;
-    shaderData = {
-      alphaTest: data.alphaTest,
-      color: data.color,
-      map: this.texture,
-      opacity: data.opacity,
-      side: parseSide(data.side),
-      transparent: data.transparent
-    };
-
-    // Shader has not changed, do an update.
-    if (!hasChangedShader) {
-      // Update shader material.
-      this.shaderObject.update(shaderData);
-      // Apparently, was not set on `init` nor `update`.
-      material.transparent = shaderData.transparent;
-      updateBaseMaterial(material, shaderData);
-      return;
-    }
-
-    // Shader has changed. Create a shader material.
-    NewShader = createShader(this.el, shaderName, shaderData);
-    this.material = NewShader.material;
-    this.shaderObject = NewShader.shader;
-
-    // Set new shader material.
-    updateBaseMaterial(this.material, shaderData);
-    if (this.mesh) { this.mesh.material = this.material; }
-  },
-
-  /**
-   * Load font for geometry, load font image for material, and apply.
-   */
-  updateFont: function () {
-    var data = this.data;
-    var el = this.el;
-    var fontSrc;
-    var geometry = this.geometry;
-    var self = this;
-
-    if (!data.font) { warn('No font specified. Using the default font.'); }
-
-    // Make invisible during font swap.
-    this.mesh.visible = false;
-
-    // Look up font URL to use, and perform cached load.
-    fontSrc = this.lookupFont(data.font || DEFAULT_FONT) || data.font;
-    cache.get(fontSrc, function doLoadFont () {
-      return loadFont(fontSrc, data.yOffset);
-    }).then(function setFont (font) {
-      var coercedData;
-      var fontImgSrc;
-
-      if (font.pages.length !== 1) {
-        throw new Error('Currently only single-page bitmap fonts are supported.');
-      }
-
-      if (!fontWidthFactors[fontSrc]) {
-        font.widthFactor = fontWidthFactors[font] = computeFontWidthFactor(font);
-      }
-
-      // Update geometry given font metrics.
-      coercedData = coerceData(data);
-      self.updateGeometry(geometry, self.data, font);
-
-      // Set font and update layout.
-      self.currentFont = font;
-      self.updateLayout(coercedData);
-
-      // Look up font image URL to use, and perform cached load.
-      fontImgSrc = self.getFontImageSrc();
-      cache.get(fontImgSrc, function () {
-        return loadTexture(fontImgSrc);
-      }).then(function (image) {
-        // Make mesh visible and apply font image as texture.
-        var texture = self.texture;
-        texture.image = image;
-        texture.needsUpdate = true;
-        textures[fontImgSrc] = texture;
-        self.texture = texture;
-        self.mesh.visible = true;
-        el.emit('textfontset', {font: data.font, fontObj: font});
-      }).catch(function (err) {
-        error(err);
-        throw err;
-      });
-    }).catch(function (err) {
-      error(err);
-      throw err;
-    });
-  },
-
-  getFontImageSrc: function () {
-    var fontSrc = this.lookupFont(this.data.font || DEFAULT_FONT) || this.data.font;
-    return this.data.fontImage || fontSrc.replace(/(\.fnt)|(\.json)/, '.png');
-  },
-
-  /**
-   * Update layout with anchor, alignment, baseline, and considering any meshes.
-   */
-  updateLayout: function (data) {
-    var anchor;
-    var baseline;
-    var el = this.el;
-    var geometry = this.geometry;
-    var geometryComponent = el.getAttribute('geometry');
-    var height;
-    var layout = geometry.layout;
-    var mesh = this.mesh;
-    var textRenderWidth;
-    var textScale;
-    var width;
-    var x;
-    var y;
-
-    // Determine width to use (defined width, geometry's width, or default width).
-    geometryComponent = el.getAttribute('geometry');
-    width = data.width || (geometryComponent && geometryComponent.width) || DEFAULT_WIDTH;
-
-    // Determine wrap pixel count. Either specified or by experimental fudge factor.
-    // Note that experimental factor will never be correct for variable width fonts.
-    textRenderWidth = computeWidth(data.wrapPixels, data.wrapCount,
-                                   this.currentFont.widthFactor);
-    textScale = width / textRenderWidth;
-
-    // Determine height to use.
-    height = textScale * (layout.height + layout.descender);
-
-    // Update geometry dimensions to match text layout if width and height are set to 0.
-    // For example, scales a plane to fit text.
-    if (geometryComponent) {
-      if (!geometryComponent.width) { el.setAttribute('geometry', 'width', width); }
-      if (!geometryComponent.height) { el.setAttribute('geometry', 'height', height); }
-    }
-
-    // Calculate X position to anchor text left, center, or right.
-    anchor = data.anchor === 'align' ? data.align : data.anchor;
-    if (anchor === 'left') {
-      x = 0;
-    } else if (anchor === 'right') {
-      x = -1 * layout.width;
-    } else if (anchor === 'center') {
-      x = -1 * layout.width / 2;
-    } else {
-      throw new TypeError('Invalid text.anchor property value', anchor);
-    }
-
-    // Calculate Y position to anchor text top, center, or bottom.
-    baseline = data.baseline;
-    if (baseline === 'bottom') {
-      y = 0;
-    } else if (baseline === 'top') {
-      y = -1 * layout.height + layout.ascender;
-    } else if (baseline === 'center') {
-      y = -1 * layout.height / 2;
-    } else {
-      throw new TypeError('Invalid text.baseline property value', baseline);
-    }
-
-    // Position and scale mesh to apply layout.
-    mesh.position.x = x * textScale + data.xOffset;
-    mesh.position.y = y * textScale;
-    // Place text slightly in front to avoid Z-fighting.
-    mesh.position.z = data.zOffset;
-    mesh.scale.set(textScale, -1 * textScale, textScale);
-    this.geometry.computeBoundingSphere();
-  },
-
-  /**
-   * Grab font from the constant.
-   * Set as a method for test stubbing purposes.
-   */
-  lookupFont: function (key) {
-    return FONTS[key];
-  },
-
-  /**
-   * Update the text geometry using `three-bmfont-text.update`.
-   */
-  updateGeometry: function (geometry, data, font) {
-    geometry.update(utils.extend({}, data, {
-      font: font,
-      width: computeWidth(data.wrapPixels, data.wrapCount, font.widthFactor),
-      text: data.value.toString().replace(/\\n/g, '\n').replace(/\\t/g, '\t'),
-      lineHeight: data.lineHeight || font.common.lineHeight
-    }));
-  }
-});
-
-/**
- * Due to using negative scale, we return the opposite side specified.
- * https://github.com/mrdoob/three.js/pull/12787/
- */
-function parseSide (side) {
-  switch (side) {
-    case 'back': {
-      return THREE.FrontSide;
-    }
-    case 'double': {
-      return THREE.DoubleSide;
-    }
-    default: {
-      return THREE.BackSide;
-    }
-  }
-}
-
-/**
- * Coerce some data to numbers.
- * as they will be passed directly into text creation and update
- */
-function coerceData (data) {
-  data = utils.clone(data);
-  if (data.lineHeight !== undefined) {
-    data.lineHeight = parseFloat(data.lineHeight);
-    if (!isFinite(data.lineHeight)) { data.lineHeight = undefined; }
-  }
-  if (data.width !== undefined) {
-    data.width = parseFloat(data.width);
-    if (!isFinite(data.width)) { data.width = undefined; }
-  }
-  return data;
-}
-
-/**
- * @returns {Promise}
- */
-function loadFont (src, yOffset) {
-  return new Promise(function (resolve, reject) {
-    loadBMFont(src, function (err, font) {
-      if (err) {
-        error('Error loading font', src);
-        reject(err);
-        return;
-      }
-
-      // Fix negative Y offsets for Roboto MSDF font from tool. Experimentally determined.
-      if (src.indexOf('/Roboto-msdf.json') >= 0) { yOffset = 30; }
-      if (yOffset) { font.chars.map(function doOffset (ch) { ch.yoffset += yOffset; }); }
-
-      resolve(font);
-    });
-  });
-}
-
-/**
- * @returns {Promise}
- */
-function loadTexture (src) {
-  return new Promise(function (resolve, reject) {
-    new THREE.ImageLoader().load(src, function (image) {
-      resolve(image);
-    }, undefined, function () {
-      error('Error loading font image', src);
-      reject(null);
-    });
-  });
-}
-
-function createShader (el, shaderName, data) {
-  var shader;
-  var shaderObject;
-
-  // Set up Shader.
-  shaderObject = new shaders[shaderName].Shader();
-  shaderObject.el = el;
-  shaderObject.init(data);
-  shaderObject.update(data);
-
-  // Get material.
-  shader = shaderObject.material;
-  // Apparently, was not set on `init` nor `update`.
-  shader.transparent = data.transparent;
-
-  return {
-    material: shader,
-    shader: shaderObject
-  };
-}
-
-/**
- * @todo Add more supported material properties (e.g., `visible`).
- */
-function updateBaseMaterial (material, data) {
-  material.side = data.side;
-}
-
-/**
- * Determine wrap pixel count. Either specified or by experimental fudge factor.
- * Note that experimental factor will never be correct for variable width fonts.
- */
-function computeWidth (wrapPixels, wrapCount, widthFactor) {
-  return wrapPixels || ((0.5 + wrapCount) * widthFactor);
-}
-
-/**
- * Compute default font width factor to use.
- */
-function computeFontWidthFactor (font) {
-  var sum = 0;
-  var digitsum = 0;
-  var digits = 0;
-  font.chars.map(function (ch) {
-    sum += ch.xadvance;
-    if (ch.id >= 48 && ch.id <= 57) {
-      digits++;
-      digitsum += ch.xadvance;
-    }
-  });
-  return digits ? digitsum / digits : sum / font.chars.length;
-}
-
-/**
- * Get or create a promise given a key and promise generator.
- * @todo Move to a utility and use in other parts of A-Frame.
- */
-function PromiseCache () {
-  var cache = this.cache = {};
-
-  this.get = function (key, promiseGenerator) {
-    if (key in cache) {
-      return cache[key];
-    }
-    cache[key] = promiseGenerator();
-    return cache[key];
-  };
-}
-
-},{"../core/component":125,"../core/shader":134,"../lib/three":173,"../utils/":195,"load-bmfont":24,"three-bmfont-text":36}],110:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var controllerUtils = _dereq_('../utils/tracked-controls');
-var DEFAULT_CAMERA_HEIGHT = _dereq_('../constants').DEFAULT_CAMERA_HEIGHT;
-var THREE = _dereq_('../lib/three');
-
-var DEFAULT_HANDEDNESS = _dereq_('../constants').DEFAULT_HANDEDNESS;
-// Vector from eyes to elbow (divided by user height).
-var EYES_TO_ELBOW = {x: 0.175, y: -0.3, z: -0.03};
-// Vector from eyes to elbow (divided by user height).
-var FOREARM = {x: 0, y: 0, z: -0.175};
-
-/**
- * Tracked controls component.
- * Wrap the gamepad API for pose and button states.
- * Select the appropriate controller and apply pose to the entity.
- * Observe button states and emit appropriate events.
- *
- * @property {number} controller - Index of controller in array returned by Gamepad API. Only used if hand property is not set.
- * @property {string} id - Selected controller among those returned by Gamepad API.
- * @property {number} hand - If multiple controllers found with id, choose the one with the given value for hand. If set, we ignore 'controller' property
- */
-module.exports.Component = registerComponent('tracked-controls', {
-  schema: {
-    controller: {default: 0},
-    id: {type: 'string', default: ''},
-    hand: {type: 'string', default: ''},
-    idPrefix: {type: 'string', default: ''},
-    rotationOffset: {default: 0},
-    // Arm model parameters when not 6DoF.
-    armModel: {default: true},
-    headElement: {type: 'selector'}
-  },
-
-  init: function () {
-    this.axis = [0, 0, 0];
-    this.buttonStates = {};
-    this.changedAxes = [];
-    this.targetControllerNumber = this.data.controller;
-
-    this.axisMoveEventDetail = {axis: this.axis, changed: this.changedAxes};
-    this.deltaControllerPosition = new THREE.Vector3();
-    this.controllerQuaternion = new THREE.Quaternion();
-    this.controllerEuler = new THREE.Euler();
-
-    this.updateGamepad();
-
-    // The matrix is manipulate directly in the updatePose method.
-    this.el.object3D.matrixAutoUpdate = false;
-  },
-
-  tick: function (time, delta) {
-    var mesh = this.el.getObject3D('mesh');
-    // Update mesh animations.
-    if (mesh && mesh.update) { mesh.update(delta / 1000); }
-    this.updateGamepad();
-    this.updatePose();
-    this.updateButtons();
-  },
-
-  /**
-   * Return default user height to use for non-6DOF arm model.
-   */
-  defaultUserHeight: function () {
-    return DEFAULT_CAMERA_HEIGHT;
-  },
-
-  /**
-   * Return head element to use for non-6DOF arm model.
-   */
-  getHeadElement: function () {
-    return this.data.headElement || this.el.sceneEl.camera.el;
-  },
-
-  /**
-   * Handle update controller match criteria (such as `id`, `idPrefix`, `hand`, `controller`)
-   */
-  updateGamepad: function () {
-    var data = this.data;
-    var controller = controllerUtils.findMatchingController(
-      this.system.controllers,
-      data.id,
-      data.idPrefix,
-      data.hand,
-      data.controller
-    );
-
-    this.controller = controller;
-  },
-
-  applyArmModel: function (controllerPosition) {
-    // Use controllerPosition and deltaControllerPosition to avoid creating variables.
-    var controller = this.controller;
-    var controllerEuler = this.controllerEuler;
-    var controllerQuaternion = this.controllerQuaternion;
-    var deltaControllerPosition = this.deltaControllerPosition;
-    var hand;
-    var headEl;
-    var headObject3D;
-    var pose;
-    var userHeight;
-
-    headEl = this.getHeadElement();
-    headObject3D = headEl.object3D;
-    userHeight = this.defaultUserHeight();
-
-    pose = controller.pose;
-    hand = (controller ? controller.hand : undefined) || DEFAULT_HANDEDNESS;
-
-    // Use camera position as head position.
-    controllerPosition.copy(headObject3D.position);
-    // Set offset for degenerate "arm model" to elbow.
-    deltaControllerPosition.set(
-      EYES_TO_ELBOW.x * (hand === 'left' ? -1 : hand === 'right' ? 1 : 0),
-      EYES_TO_ELBOW.y,  // Lower than our eyes.
-      EYES_TO_ELBOW.z);  // Slightly out in front.
-    // Scale offset by user height.
-    deltaControllerPosition.multiplyScalar(userHeight);
-    // Apply camera Y rotation (not X or Z, so you can look down at your hand).
-    deltaControllerPosition.applyAxisAngle(headObject3D.up, headObject3D.rotation.y);
-    // Apply rotated offset to position.
-    controllerPosition.add(deltaControllerPosition);
-
-    // Set offset for degenerate "arm model" forearm. Forearm sticking out from elbow.
-    deltaControllerPosition.set(FOREARM.x, FOREARM.y, FOREARM.z);
-    // Scale offset by user height.
-    deltaControllerPosition.multiplyScalar(userHeight);
-    // Apply controller X/Y rotation (tilting up/down/left/right is usually moving the arm).
-    if (pose.orientation) {
-      controllerQuaternion.fromArray(pose.orientation);
-    } else {
-      controllerQuaternion.copy(headObject3D.quaternion);
-    }
-    controllerEuler.setFromQuaternion(controllerQuaternion);
-    controllerEuler.set(controllerEuler.x, controllerEuler.y, 0);
-    deltaControllerPosition.applyEuler(controllerEuler);
-    // Apply rotated offset to position.
-    controllerPosition.add(deltaControllerPosition);
-  },
-
-  /**
-   * Read pose from controller (from Gamepad API), apply transforms, apply to entity.
-   */
-  updatePose: function () {
-    var controller = this.controller;
-    var object3D = this.el.object3D;
-    var pose;
-    var vrDisplay = this.system.vrDisplay;
-    var standingMatrix;
-
-    if (!controller) { return; }
-
-    // Compose pose from Gamepad.
-    pose = controller.pose;
-
-    if (pose.position !== null) {
-      object3D.position.fromArray(pose.position);
-    } else {
-      // Controller not 6DOF, apply arm model.
-      if (this.data.armModel) { this.applyArmModel(object3D.position); }
-    }
-
-    if (pose.orientation !== null) {
-      object3D.quaternion.fromArray(pose.orientation);
-    }
-
-    // Apply transforms, if 6DOF and in VR.
-    if (vrDisplay) {
-      standingMatrix = this.el.sceneEl.renderer.vr.getStandingMatrix();
-      object3D.matrixAutoUpdate = false;
-      object3D.matrix.compose(object3D.position, object3D.quaternion, object3D.scale);
-      object3D.matrix.multiplyMatrices(standingMatrix, object3D.matrix);
-      object3D.matrix.decompose(object3D.position, object3D.quaternion, object3D.scale);
-    }
-
-    object3D.rotateZ(this.data.rotationOffset * THREE.Math.DEG2RAD);
-
-    object3D.updateMatrix();
-    object3D.matrixWorldNeedsUpdate = true;
-  },
-
-  /**
-   * Handle button changes including axes, presses, touches, values.
-   */
-  updateButtons: function () {
-    var buttonState;
-    var controller = this.controller;
-    var id;
-
-    if (!controller) { return; }
-
-    // Check every button.
-    for (id = 0; id < controller.buttons.length; ++id) {
-      // Initialize button state.
-      if (!this.buttonStates[id]) {
-        this.buttonStates[id] = {pressed: false, touched: false, value: 0};
-      }
-
-      buttonState = controller.buttons[id];
-      this.handleButton(id, buttonState);
-    }
-    // Check axes.
-    this.handleAxes();
-  },
-
-  /**
-   * Handle presses and touches for a single button.
-   *
-   * @param {number} id - Index of button in Gamepad button array.
-   * @param {number} buttonState - Value of button state from 0 to 1.
-   * @returns {boolean} Whether button has changed in any way.
-   */
-  handleButton: function (id, buttonState) {
-    var changed = this.handlePress(id, buttonState) ||
-                  this.handleTouch(id, buttonState) ||
-                  this.handleValue(id, buttonState);
-    if (!changed) { return false; }
-    this.el.emit('buttonchanged', {id: id, state: buttonState});
-    return true;
-  },
-
-  /**
-   * An axis is an array of values from -1 (up, left) to 1 (down, right).
-   * Compare each component of the axis to the previous value to determine change.
-   *
-   * @returns {boolean} Whether axes changed.
-   */
-  handleAxes: function () {
-    var changed = false;
-    var controllerAxes = this.controller.axes;
-    var i;
-    var previousAxis = this.axis;
-    var changedAxes = this.changedAxes;
-
-    // Check if axis changed.
-    this.changedAxes.length = 0;
-    for (i = 0; i < controllerAxes.length; ++i) {
-      changedAxes.push(previousAxis[i] !== controllerAxes[i]);
-      if (changedAxes[i]) { changed = true; }
-    }
-    if (!changed) { return false; }
-
-    this.axis.length = 0;
-    for (i = 0; i < controllerAxes.length; i++) {
-      this.axis.push(controllerAxes[i]);
-    }
-    this.el.emit('axismove', this.axisMoveEventDetail);
-    return true;
-  },
-
-  /**
-   * Determine whether a button press has occured and emit events as appropriate.
-   *
-   * @param {string} id - ID of the button to check.
-   * @param {object} buttonState - State of the button to check.
-   * @returns {boolean} Whether button press state changed.
-   */
-  handlePress: function (id, buttonState) {
-    var evtName;
-    var previousButtonState = this.buttonStates[id];
-
-    // Not changed.
-    if (buttonState.pressed === previousButtonState.pressed) { return false; }
-
-    evtName = buttonState.pressed ? 'down' : 'up';
-    this.el.emit('button' + evtName, {id: id, state: buttonState});
-    previousButtonState.pressed = buttonState.pressed;
-    return true;
-  },
-
-  /**
-   * Determine whether a button touch has occured and emit events as appropriate.
-   *
-   * @param {string} id - ID of the button to check.
-   * @param {object} buttonState - State of the button to check.
-   * @returns {boolean} Whether button touch state changed.
-   */
-  handleTouch: function (id, buttonState) {
-    var evtName;
-    var previousButtonState = this.buttonStates[id];
-
-    // Not changed.
-    if (buttonState.touched === previousButtonState.touched) { return false; }
-
-    evtName = buttonState.touched ? 'start' : 'end';
-    // Due to unfortunate name collision, add empty touches array to avoid Daydream error.
-    this.el.emit('touch' + evtName, {id: id, state: buttonState}, true, {touches: []});
-    previousButtonState.touched = buttonState.touched;
-    return true;
-  },
-
-  /**
-   * Determine whether a button value has changed.
-   *
-   * @param {string} id - Id of the button to check.
-   * @param {object} buttonState - State of the button to check.
-   * @returns {boolean} Whether button value changed.
-   */
-  handleValue: function (id, buttonState) {
-    var previousButtonState = this.buttonStates[id];
-
-    // Not changed.
-    if (buttonState.value === previousButtonState.value) { return false; }
-
-    previousButtonState.value = buttonState.value;
-    return true;
-  }
-});
-
-},{"../constants":116,"../core/component":125,"../lib/three":173,"../utils/tracked-controls":200}],111:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-
-/**
- * Visibility component.
- */
-module.exports.Component = registerComponent('visible', {
-  schema: {default: true},
-
-  update: function () {
-    this.el.object3D.visible = this.data;
-  }
-});
-
-},{"../core/component":125}],112:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../core/component').registerComponent;
-var utils = _dereq_('../utils/');
-
-var bind = utils.bind;
-var trackedControlsUtils = _dereq_('../utils/tracked-controls');
-var checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;
-var emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;
-var onButtonEvent = trackedControlsUtils.onButtonEvent;
-
-var VIVE_CONTROLLER_MODEL_OBJ_URL = 'https://cdn.aframe.io/controllers/vive/vr_controller_vive.obj';
-var VIVE_CONTROLLER_MODEL_OBJ_MTL = 'https://cdn.aframe.io/controllers/vive/vr_controller_vive.mtl';
-
-var GAMEPAD_ID_PREFIX = 'OpenVR ';
-
-/**
- * Vive controls.
- * Interface with Vive controllers and map Gamepad events to controller buttons:
- * trackpad, trigger, grip, menu, system
- * Load a controller model and highlight the pressed buttons.
- */
-module.exports.Component = registerComponent('vive-controls', {
-  schema: {
-    hand: {default: 'left'},
-    buttonColor: {type: 'color', default: '#FAFAFA'},  // Off-white.
-    buttonHighlightColor: {type: 'color', default: '#22D1EE'},  // Light blue.
-    model: {default: true},
-    rotationOffset: {default: 0}
-  },
-
-  /**
-   * Button IDs:
-   * 0 - trackpad
-   * 1 - trigger (intensity value from 0.5 to 1)
-   * 2 - grip
-   * 3 - menu (dispatch but better for menu options)
-   * 4 - system (never dispatched on this layer)
-   */
-  mapping: {
-    axes: {trackpad: [0, 1]},
-    buttons: ['trackpad', 'trigger', 'grip', 'menu', 'system']
-  },
-
-  init: function () {
-    var self = this;
-    this.animationActive = 'pointing';
-    this.checkControllerPresentAndSetup = checkControllerPresentAndSetup;  // To allow mock.
-    this.controllerPresent = false;
-    this.emitIfAxesChanged = emitIfAxesChanged;  // To allow mock.
-    this.lastControllerCheck = 0;
-    this.onButtonChanged = bind(this.onButtonChanged, this);
-    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };
-    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };
-    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };
-    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-    this.previousButtonValues = {};
-
-    this.bindMethods();
-  },
-
-  play: function () {
-    this.checkIfControllerPresent();
-    this.addControllersUpdateListener();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-    this.removeControllersUpdateListener();
-  },
-
-  bindMethods: function () {
-    this.onModelLoaded = bind(this.onModelLoaded, this);
-    this.onControllersUpdate = bind(this.onControllersUpdate, this);
-    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);
-    this.removeControllersUpdateListener = bind(this.removeControllersUpdateListener, this);
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-  },
-
-  addEventListeners: function () {
-    var el = this.el;
-    el.addEventListener('buttonchanged', this.onButtonChanged);
-    el.addEventListener('buttondown', this.onButtonDown);
-    el.addEventListener('buttonup', this.onButtonUp);
-    el.addEventListener('touchend', this.onButtonTouchEnd);
-    el.addEventListener('touchstart', this.onButtonTouchStart);
-    el.addEventListener('model-loaded', this.onModelLoaded);
-    el.addEventListener('axismove', this.onAxisMoved);
-    this.controllerEventsActive = true;
-  },
-
-  removeEventListeners: function () {
-    var el = this.el;
-    el.removeEventListener('buttonchanged', this.onButtonChanged);
-    el.removeEventListener('buttondown', this.onButtonDown);
-    el.removeEventListener('buttonup', this.onButtonUp);
-    el.removeEventListener('touchend', this.onButtonTouchEnd);
-    el.removeEventListener('touchstart', this.onButtonTouchStart);
-    el.removeEventListener('model-loaded', this.onModelLoaded);
-    el.removeEventListener('axismove', this.onAxisMoved);
-    this.controllerEventsActive = false;
-  },
-
-  /**
-   * Once OpenVR returns correct hand data in supporting browsers, we can use hand property.
-   * var isPresent = this.checkControllerPresentAndSetup(this.el.sceneEl, GAMEPAD_ID_PREFIX,
-                                                        { hand: data.hand });
-   * Until then, use hardcoded index.
-   */
-  checkIfControllerPresent: function () {
-    var data = this.data;
-    var controllerIndex = data.hand === 'right' ? 0 : data.hand === 'left' ? 1 : 2;
-    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {index: controllerIndex});
-  },
-
-  injectTrackedControls: function () {
-    var el = this.el;
-    var data = this.data;
-
-    // If we have an OpenVR Gamepad, use the fixed mapping.
-    el.setAttribute('tracked-controls', {
-      idPrefix: GAMEPAD_ID_PREFIX,
-      // Hand IDs: 0 = right, 1 = left, 2 = anything else.
-      controller: data.hand === 'right' ? 0 : data.hand === 'left' ? 1 : 2,
-      rotationOffset: data.rotationOffset
-    });
-
-    // Load model.
-    if (!this.data.model) { return; }
-    this.el.setAttribute('obj-model', {
-      obj: VIVE_CONTROLLER_MODEL_OBJ_URL,
-      mtl: VIVE_CONTROLLER_MODEL_OBJ_MTL
-    });
-  },
-
-  addControllersUpdateListener: function () {
-    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  removeControllersUpdateListener: function () {
-    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  onControllersUpdate: function () {
-    this.checkIfControllerPresent();
-  },
-
-  /**
-   * Rotate the trigger button based on how hard the trigger is pressed.
-   */
-  onButtonChanged: function (evt) {
-    var button = this.mapping.buttons[evt.detail.id];
-    var buttonMeshes = this.buttonMeshes;
-    var analogValue;
-
-    if (!button) { return; }
-
-    if (button === 'trigger') {
-      analogValue = evt.detail.state.value;
-      // Update trigger rotation depending on button value.
-      if (buttonMeshes && buttonMeshes.trigger) {
-        buttonMeshes.trigger.rotation.x = -analogValue * (Math.PI / 12);
-      }
-    }
-
-    // Pass along changed event with button state, using button mapping for convenience.
-    this.el.emit(button + 'changed', evt.detail.state);
-  },
-
-  onModelLoaded: function (evt) {
-    var buttonMeshes;
-    var controllerObject3D = evt.detail.model;
-    var self = this;
-
-    if (!this.data.model) { return; }
-
-    // Store button meshes object to be able to change their colors.
-    buttonMeshes = this.buttonMeshes = {};
-    buttonMeshes.grip = {
-      left: controllerObject3D.getObjectByName('leftgrip'),
-      right: controllerObject3D.getObjectByName('rightgrip')
-    };
-    buttonMeshes.menu = controllerObject3D.getObjectByName('menubutton');
-    buttonMeshes.system = controllerObject3D.getObjectByName('systembutton');
-    buttonMeshes.trackpad = controllerObject3D.getObjectByName('touchpad');
-    buttonMeshes.trigger = controllerObject3D.getObjectByName('trigger');
-
-    // Set default colors.
-    Object.keys(buttonMeshes).forEach(function (buttonName) {
-      self.setButtonColor(buttonName, self.data.buttonColor);
-    });
-
-    // Offset pivot point.
-    controllerObject3D.position.set(0, -0.015, 0.04);
-  },
-
-  onAxisMoved: function (evt) {
-    this.emitIfAxesChanged(this, this.mapping.axes, evt);
-  },
-
-  updateModel: function (buttonName, evtName) {
-    var color;
-    var isTouch;
-    if (!this.data.model) { return; }
-
-    isTouch = evtName.indexOf('touch') !== -1;
-    // Don't change color for trackpad touch.
-    if (isTouch) { return; }
-
-    // Update colors.
-    color = evtName === 'up' ? this.data.buttonColor : this.data.buttonHighlightColor;
-    this.setButtonColor(buttonName, color);
-  },
-
-  setButtonColor: function (buttonName, color) {
-    var buttonMeshes = this.buttonMeshes;
-
-    if (!buttonMeshes) { return; }
-
-    // Need to do both left and right sides for grip.
-    if (buttonName === 'grip') {
-      buttonMeshes.grip.left.material.color.set(color);
-      buttonMeshes.grip.right.material.color.set(color);
-      return;
-    }
-    buttonMeshes[buttonName].material.color.set(color);
-  }
-});
-
-},{"../core/component":125,"../utils/":195,"../utils/tracked-controls":200}],113:[function(_dereq_,module,exports){
-var KEYCODE_TO_CODE = _dereq_('../constants').keyboardevent.KEYCODE_TO_CODE;
-var registerComponent = _dereq_('../core/component').registerComponent;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-
-var bind = utils.bind;
-var shouldCaptureKeyEvent = utils.shouldCaptureKeyEvent;
-
-var CLAMP_VELOCITY = 0.00001;
-var MAX_DELTA = 0.2;
-var KEYS = [
-  'KeyW', 'KeyA', 'KeyS', 'KeyD',
-  'ArrowUp', 'ArrowLeft', 'ArrowRight', 'ArrowDown'
-];
-
-/**
- * WASD component to control entities using WASD keys.
- */
-module.exports.Component = registerComponent('wasd-controls', {
-  schema: {
-    acceleration: {default: 65},
-    adAxis: {default: 'x', oneOf: ['x', 'y', 'z']},
-    adEnabled: {default: true},
-    adInverted: {default: false},
-    easing: {default: 20},
-    enabled: {default: true},
-    fly: {default: false},
-    wsAxis: {default: 'z', oneOf: ['x', 'y', 'z']},
-    wsEnabled: {default: true},
-    wsInverted: {default: false}
-  },
-
-  init: function () {
-    // To keep track of the pressed keys.
-    this.keys = {};
-
-    this.position = {};
-    this.velocity = new THREE.Vector3();
-
-    // Bind methods and add event listeners.
-    this.onBlur = bind(this.onBlur, this);
-    this.onFocus = bind(this.onFocus, this);
-    this.onKeyDown = bind(this.onKeyDown, this);
-    this.onKeyUp = bind(this.onKeyUp, this);
-    this.onVisibilityChange = bind(this.onVisibilityChange, this);
-    this.attachVisibilityEventListeners();
-  },
-
-  tick: function (time, delta) {
-    var currentPosition;
-    var data = this.data;
-    var el = this.el;
-    var movementVector;
-    var position = this.position;
-    var velocity = this.velocity;
-
-    if (!velocity[data.adAxis] && !velocity[data.wsAxis] &&
-        isEmptyObject(this.keys)) { return; }
-
-    // Update velocity.
-    delta = delta / 1000;
-    this.updateVelocity(delta);
-
-    if (!velocity[data.adAxis] && !velocity[data.wsAxis]) { return; }
-
-    // Get movement vector and translate position.
-    currentPosition = el.getAttribute('position');
-    movementVector = this.getMovementVector(delta);
-    position.x = currentPosition.x + movementVector.x;
-    position.y = currentPosition.y + movementVector.y;
-    position.z = currentPosition.z + movementVector.z;
-    el.setAttribute('position', position);
-  },
-
-  remove: function () {
-    this.removeKeyEventListeners();
-    this.removeVisibilityEventListeners();
-  },
-
-  play: function () {
-    this.attachKeyEventListeners();
-  },
-
-  pause: function () {
-    this.keys = {};
-    this.removeKeyEventListeners();
-  },
-
-  updateVelocity: function (delta) {
-    var acceleration;
-    var adAxis;
-    var adSign;
-    var data = this.data;
-    var keys = this.keys;
-    var velocity = this.velocity;
-    var wsAxis;
-    var wsSign;
-
-    adAxis = data.adAxis;
-    wsAxis = data.wsAxis;
-
-    // If FPS too low, reset velocity.
-    if (delta > MAX_DELTA) {
-      velocity[adAxis] = 0;
-      velocity[wsAxis] = 0;
-      return;
-    }
-
-    // Decay velocity.
-    if (velocity[adAxis] !== 0) {
-      velocity[adAxis] -= velocity[adAxis] * data.easing * delta;
-    }
-    if (velocity[wsAxis] !== 0) {
-      velocity[wsAxis] -= velocity[wsAxis] * data.easing * delta;
-    }
-
-    // Clamp velocity easing.
-    if (Math.abs(velocity[adAxis]) < CLAMP_VELOCITY) { velocity[adAxis] = 0; }
-    if (Math.abs(velocity[wsAxis]) < CLAMP_VELOCITY) { velocity[wsAxis] = 0; }
-
-    if (!data.enabled) { return; }
-
-    // Update velocity using keys pressed.
-    acceleration = data.acceleration;
-    if (data.adEnabled) {
-      adSign = data.adInverted ? -1 : 1;
-      if (keys.KeyA || keys.ArrowLeft) { velocity[adAxis] -= adSign * acceleration * delta; }
-      if (keys.KeyD || keys.ArrowRight) { velocity[adAxis] += adSign * acceleration * delta; }
-    }
-    if (data.wsEnabled) {
-      wsSign = data.wsInverted ? -1 : 1;
-      if (keys.KeyW || keys.ArrowUp) { velocity[wsAxis] -= wsSign * acceleration * delta; }
-      if (keys.KeyS || keys.ArrowDown) { velocity[wsAxis] += wsSign * acceleration * delta; }
-    }
-  },
-
-  getMovementVector: (function () {
-    var directionVector = new THREE.Vector3(0, 0, 0);
-    var rotationEuler = new THREE.Euler(0, 0, 0, 'YXZ');
-
-    return function (delta) {
-      var rotation = this.el.getAttribute('rotation');
-      var velocity = this.velocity;
-      var xRotation;
-
-      directionVector.copy(velocity);
-      directionVector.multiplyScalar(delta);
-
-      // Absolute.
-      if (!rotation) { return directionVector; }
-
-      xRotation = this.data.fly ? rotation.x : 0;
-
-      // Transform direction relative to heading.
-      rotationEuler.set(THREE.Math.degToRad(xRotation), THREE.Math.degToRad(rotation.y), 0);
-      directionVector.applyEuler(rotationEuler);
-      return directionVector;
-    };
-  })(),
-
-  attachVisibilityEventListeners: function () {
-    window.addEventListener('blur', this.onBlur);
-    window.addEventListener('focus', this.onFocus);
-    document.addEventListener('visibilitychange', this.onVisibilityChange);
-  },
-
-  removeVisibilityEventListeners: function () {
-    window.removeEventListener('blur', this.onBlur);
-    window.removeEventListener('focus', this.onFocus);
-    document.removeEventListener('visibilitychange', this.onVisibilityChange);
-  },
-
-  attachKeyEventListeners: function () {
-    window.addEventListener('keydown', this.onKeyDown);
-    window.addEventListener('keyup', this.onKeyUp);
-  },
-
-  removeKeyEventListeners: function () {
-    window.removeEventListener('keydown', this.onKeyDown);
-    window.removeEventListener('keyup', this.onKeyUp);
-  },
-
-  onBlur: function () {
-    this.pause();
-  },
-
-  onFocus: function () {
-    this.play();
-  },
-
-  onVisibilityChange: function () {
-    if (document.hidden) {
-      this.onBlur();
-    } else {
-      this.onFocus();
-    }
-  },
-
-  onKeyDown: function (event) {
-    var code;
-    if (!shouldCaptureKeyEvent(event)) { return; }
-    code = event.code || KEYCODE_TO_CODE[event.keyCode];
-    if (KEYS.indexOf(code) !== -1) { this.keys[code] = true; }
-  },
-
-  onKeyUp: function (event) {
-    var code;
-    code = event.code || KEYCODE_TO_CODE[event.keyCode];
-    delete this.keys[code];
-  }
-});
-
-function isEmptyObject (keys) {
-  var key;
-  for (key in keys) { return false; }
-  return true;
-}
-
-},{"../constants":116,"../core/component":125,"../lib/three":173,"../utils/":195}],114:[function(_dereq_,module,exports){
-/* global THREE */
-var bind = _dereq_('../utils/bind');
-var registerComponent = _dereq_('../core/component').registerComponent;
-var trackedControlsUtils = _dereq_('../utils/tracked-controls');
-var onButtonEvent = trackedControlsUtils.onButtonEvent;
-var utils = _dereq_('../utils/');
-
-var debug = utils.debug('components:windows-motion-controls:debug');
-var warn = utils.debug('components:windows-motion-controls:warn');
-
-var DEFAULT_HANDEDNESS = _dereq_('../constants').DEFAULT_HANDEDNESS;
-
-var MODEL_BASE_URL = 'https://cdn.aframe.io/controllers/microsoft/';
-var MODEL_FILENAMES = { left: 'left.glb', right: 'right.glb', default: 'universal.glb' };
-
-var GAMEPAD_ID_PREFIX = 'Spatial Controller (Spatial Interaction Source) ';
-var GAMEPAD_ID_PATTERN = /([0-9a-zA-Z]+-[0-9a-zA-Z]+)$/;
-
-/**
- * Windows Motion Controller controls.
- * Interface with Windows Motion Controller controllers and map Gamepad events to
- * controller buttons: trackpad, trigger, grip, menu, thumbstick
- * Load a controller model and transform the pressed buttons.
- */
-module.exports.Component = registerComponent('windows-motion-controls', {
-  schema: {
-    hand: {default: DEFAULT_HANDEDNESS},
-    // It is possible to have multiple pairs of controllers attached (a pair has both left and right).
-    // Set this to 1 to use a controller from the second pair, 2 from the third pair, etc.
-    pair: {default: 0},
-    // If true, loads the controller glTF asset.
-    model: {default: true},
-    // If true, will hide the model from the scene if no matching gamepad (based on ID & hand) is connected.
-    hideDisconnected: {default: true}
-  },
-
-  mapping: {
-    // A-Frame specific semantic axis names
-    axes: {'thumbstick': [0, 1], 'trackpad': [2, 3]},
-    // A-Frame specific semantic button names
-    buttons: ['thumbstick', 'trigger', 'grip', 'menu', 'trackpad'],
-    // A mapping of the semantic name to node name in the glTF model file,
-    // that should be transformed by axis value.
-    // This array mirrors the browser Gamepad.axes array, such that
-    // the mesh corresponding to axis 0 is in this array index 0.
-    axisMeshNames: [
-      'THUMBSTICK_X',
-      'THUMBSTICK_Y',
-      'TOUCHPAD_TOUCH_X',
-      'TOUCHPAD_TOUCH_Y'
-    ],
-    // A mapping of the semantic name to button node name in the glTF model file,
-    // that should be transformed by button value.
-    buttonMeshNames: {
-      'trigger': 'SELECT',
-      'menu': 'MENU',
-      'grip': 'GRASP',
-      'thumbstick': 'THUMBSTICK_PRESS',
-      'trackpad': 'TOUCHPAD_PRESS'
-    },
-    pointingPoseMeshName: 'POINTING_POSE'
-  },
-
-  bindMethods: function () {
-    this.onModelError = bind(this.onModelError, this);
-    this.onModelLoaded = bind(this.onModelLoaded, this);
-    this.onControllersUpdate = bind(this.onControllersUpdate, this);
-    this.checkIfControllerPresent = bind(this.checkIfControllerPresent, this);
-    this.onAxisMoved = bind(this.onAxisMoved, this);
-  },
-
-  init: function () {
-    var self = this;
-    var el = this.el;
-    this.onButtonChanged = bind(this.onButtonChanged, this);
-    this.onButtonDown = function (evt) { onButtonEvent(evt.detail.id, 'down', self); };
-    this.onButtonUp = function (evt) { onButtonEvent(evt.detail.id, 'up', self); };
-    this.onButtonTouchStart = function (evt) { onButtonEvent(evt.detail.id, 'touchstart', self); };
-    this.onButtonTouchEnd = function (evt) { onButtonEvent(evt.detail.id, 'touchend', self); };
-    this.onControllerConnected = function () { self.setModelVisibility(true); };
-    this.onControllerDisconnected = function () { self.setModelVisibility(false); };
-    this.controllerPresent = false;
-    this.lastControllerCheck = 0;
-    this.previousButtonValues = {};
-    this.bindMethods();
-
-    // Cache for submeshes that we have looked up by name.
-    this.loadedMeshInfo = {
-      buttonMeshes: null,
-      axisMeshes: null
-    };
-
-    // Pointing poses
-    this.rayOrigin = {
-      origin: new THREE.Vector3(),
-      direction: new THREE.Vector3(0, 0, -1),
-      createdFromMesh: false
-    };
-
-    // Stored on object to allow for mocking in tests
-    this.emitIfAxesChanged = trackedControlsUtils.emitIfAxesChanged;
-    this.checkControllerPresentAndSetup = trackedControlsUtils.checkControllerPresentAndSetup;
-
-    el.addEventListener('controllerconnected', this.onControllerConnected);
-    el.addEventListener('controllerdisconnected', this.onControllerDisconnected);
-  },
-
-  addEventListeners: function () {
-    var el = this.el;
-    el.addEventListener('buttonchanged', this.onButtonChanged);
-    el.addEventListener('buttondown', this.onButtonDown);
-    el.addEventListener('buttonup', this.onButtonUp);
-    el.addEventListener('touchstart', this.onButtonTouchStart);
-    el.addEventListener('touchend', this.onButtonTouchEnd);
-    el.addEventListener('axismove', this.onAxisMoved);
-    el.addEventListener('model-error', this.onModelError);
-    el.addEventListener('model-loaded', this.onModelLoaded);
-    this.controllerEventsActive = true;
-  },
-
-  removeEventListeners: function () {
-    var el = this.el;
-    el.removeEventListener('buttonchanged', this.onButtonChanged);
-    el.removeEventListener('buttondown', this.onButtonDown);
-    el.removeEventListener('buttonup', this.onButtonUp);
-    el.removeEventListener('touchstart', this.onButtonTouchStart);
-    el.removeEventListener('touchend', this.onButtonTouchEnd);
-    el.removeEventListener('axismove', this.onAxisMoved);
-    el.removeEventListener('model-error', this.onModelError);
-    el.removeEventListener('model-loaded', this.onModelLoaded);
-    this.controllerEventsActive = false;
-  },
-
-  checkIfControllerPresent: function () {
-    this.checkControllerPresentAndSetup(this, GAMEPAD_ID_PREFIX, {
-      hand: this.data.hand,
-      index: this.data.pair
-    });
-  },
-
-  play: function () {
-    this.checkIfControllerPresent();
-    this.addControllersUpdateListener();
-  },
-
-  pause: function () {
-    this.removeEventListeners();
-    this.removeControllersUpdateListener();
-  },
-
-  updateControllerModel: function () {
-    // If we do not want to load a model, or, have already loaded the model, emit the controllermodelready event.
-    if (!this.data.model || this.rayOrigin.createdFromMesh) {
-      this.modelReady();
-      return;
-    }
-
-    var sourceUrl = this.createControllerModelUrl();
-    this.loadModel(sourceUrl);
-  },
-
-  /**
-   * Helper function that constructs a URL from the controller ID suffix, for future proofed
-   * art assets.
-   */
-  createControllerModelUrl: function (forceDefault) {
-    // Determine the device specific folder based on the ID suffix
-    var trackedControlsComponent = this.el.components['tracked-controls'];
-    var controller = trackedControlsComponent ? trackedControlsComponent.controller : null;
-    var device = 'default';
-    var hand = this.data.hand;
-    var filename;
-
-    if (controller) {
-      // Read hand directly from the controller, rather than this.data, as in the case that the controller
-      // is unhanded this.data will still have 'left' or 'right' (depending on what the user inserted in to the scene).
-      // In this case, we want to load the universal model, so need to get the '' from the controller.
-      hand = controller.hand;
-
-      if (!forceDefault) {
-        var match = controller.id.match(GAMEPAD_ID_PATTERN);
-        device = ((match && match[0]) || device);
-      }
-    }
-
-    // Hand
-    filename = MODEL_FILENAMES[hand] || MODEL_FILENAMES.default;
-
-    // Final url
-    return MODEL_BASE_URL + device + '/' + filename;
-  },
-
-  injectTrackedControls: function () {
-    var data = this.data;
-    this.el.setAttribute('tracked-controls', {
-      idPrefix: GAMEPAD_ID_PREFIX,
-      controller: data.pair,
-      hand: data.hand,
-      armModel: false
-    });
-
-    this.updateControllerModel();
-  },
-
-  addControllersUpdateListener: function () {
-    this.el.sceneEl.addEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  removeControllersUpdateListener: function () {
-    this.el.sceneEl.removeEventListener('controllersupdated', this.onControllersUpdate, false);
-  },
-
-  onControllersUpdate: function () {
-    this.checkIfControllerPresent();
-  },
-
-  onModelError: function (evt) {
-    var defaultUrl = this.createControllerModelUrl(true);
-    if (evt.detail.src !== defaultUrl) {
-      warn('Failed to load controller model for device, attempting to load default.');
-      this.loadModel(defaultUrl);
-    } else {
-      warn('Failed to load default controller model.');
-    }
-  },
-
-  loadModel: function (url) {
-    // The model is loaded by the gltf-model compoent when this attribute is initially set,
-    // removed and re-loaded if the given url changes.
-    this.el.setAttribute('gltf-model', 'url(' + url + ')');
-  },
-
-  onModelLoaded: function (evt) {
-    var rootNode = this.controllerModel = evt.detail.model;
-    var loadedMeshInfo = this.loadedMeshInfo;
-    var i;
-    var meshName;
-    var mesh;
-    var meshInfo;
-
-    debug('Processing model');
-
-    // Reset the caches
-    loadedMeshInfo.buttonMeshes = {};
-    loadedMeshInfo.axisMeshes = {};
-
-    // Cache our meshes so we aren't traversing the hierarchy per frame
-    if (rootNode) {
-      // Button Meshes
-      for (i = 0; i < this.mapping.buttons.length; i++) {
-        meshName = this.mapping.buttonMeshNames[this.mapping.buttons[i]];
-        if (!meshName) {
-          debug('Skipping unknown button at index: ' + i + ' with mapped name: ' + this.mapping.buttons[i]);
-          continue;
-        }
-
-        mesh = rootNode.getObjectByName(meshName);
-        if (!mesh) {
-          warn('Missing button mesh with name: ' + meshName);
-          continue;
-        }
-
-        meshInfo = {
-          index: i,
-          value: getImmediateChildByName(mesh, 'VALUE'),
-          pressed: getImmediateChildByName(mesh, 'PRESSED'),
-          unpressed: getImmediateChildByName(mesh, 'UNPRESSED')
-        };
-        if (meshInfo.value && meshInfo.pressed && meshInfo.unpressed) {
-          loadedMeshInfo.buttonMeshes[this.mapping.buttons[i]] = meshInfo;
-        } else {
-          // If we didn't find the mesh, it simply means this button won't have transforms applied as mapped button value changes.
-          warn('Missing button submesh under mesh with name: ' + meshName +
-            '(VALUE: ' + !!meshInfo.value +
-            ', PRESSED: ' + !!meshInfo.pressed +
-            ', UNPRESSED:' + !!meshInfo.unpressed +
-            ')');
-        }
-      }
-
-      // Axis Meshes
-      for (i = 0; i < this.mapping.axisMeshNames.length; i++) {
-        meshName = this.mapping.axisMeshNames[i];
-        if (!meshName) {
-          debug('Skipping unknown axis at index: ' + i);
-          continue;
-        }
-
-        mesh = rootNode.getObjectByName(meshName);
-        if (!mesh) {
-          warn('Missing axis mesh with name: ' + meshName);
-          continue;
-        }
-
-        meshInfo = {
-          index: i,
-          value: getImmediateChildByName(mesh, 'VALUE'),
-          min: getImmediateChildByName(mesh, 'MIN'),
-          max: getImmediateChildByName(mesh, 'MAX')
-        };
-        if (meshInfo.value && meshInfo.min && meshInfo.max) {
-          loadedMeshInfo.axisMeshes[i] = meshInfo;
-        } else {
-          // If we didn't find the mesh, it simply means this axis won't have transforms applied as mapped axis values change.
-          warn('Missing axis submesh under mesh with name: ' + meshName +
-            '(VALUE: ' + !!meshInfo.value +
-            ', MIN: ' + !!meshInfo.min +
-            ', MAX:' + !!meshInfo.max +
-            ')');
-        }
-      }
-
-      this.calculateRayOriginFromMesh(rootNode);
-      // Determine if the model has to be visible or not.
-      this.setModelVisibility();
-    }
-
-    debug('Model load complete.');
-
-    // Look through only immediate children. This will return null if no mesh exists with the given name.
-    function getImmediateChildByName (object3d, value) {
-      for (var i = 0, l = object3d.children.length; i < l; i++) {
-        var obj = object3d.children[i];
-        if (obj && obj['name'] === value) {
-          return obj;
-        }
-      }
-      return undefined;
-    }
-  },
-
-  calculateRayOriginFromMesh: (function () {
-    var quaternion = new THREE.Quaternion();
-    return function (rootNode) {
-      var mesh;
-
-      // Calculate the pointer pose (used for rays), by applying the world transform of th POINTER_POSE node
-      // in the glTF (assumes that root node is at world origin)
-      this.rayOrigin.origin.set(0, 0, 0);
-      this.rayOrigin.direction.set(0, 0, -1);
-      this.rayOrigin.createdFromMesh = true;
-
-      // Try to read Pointing pose from the source model
-      mesh = rootNode.getObjectByName(this.mapping.pointingPoseMeshName);
-      if (mesh) {
-        var parent = rootNode.parent;
-
-        // We need to read pose transforms accumulated from the root of the glTF, not the scene.
-        if (parent) {
-          rootNode.parent = null;
-          rootNode.updateMatrixWorld(true);
-          rootNode.parent = parent;
-        }
-
-        mesh.getWorldPosition(this.rayOrigin.origin);
-        mesh.getWorldQuaternion(quaternion);
-        this.rayOrigin.direction.applyQuaternion(quaternion);
-
-        // Recalculate the world matrices now that the rootNode is re-attached to the parent.
-        if (parent) {
-          rootNode.updateMatrixWorld(true);
-        }
-      } else {
-        debug('Mesh does not contain pointing origin data, defaulting to none.');
-      }
-
-      // Emit event stating that our pointing ray is now accurate.
-      this.modelReady();
-    };
-  })(),
-
-  lerpAxisTransform: (function () {
-    var quaternion = new THREE.Quaternion();
-    return function (axis, axisValue) {
-      var axisMeshInfo = this.loadedMeshInfo.axisMeshes[axis];
-      if (!axisMeshInfo) return;
-
-      var min = axisMeshInfo.min;
-      var max = axisMeshInfo.max;
-      var target = axisMeshInfo.value;
-
-      // Convert from gamepad value range (-1 to +1) to lerp range (0 to 1)
-      var lerpValue = axisValue * 0.5 + 0.5;
-      target.setRotationFromQuaternion(quaternion.copy(min.quaternion).slerp(max.quaternion, lerpValue));
-      target.position.lerpVectors(min.position, max.position, lerpValue);
-    };
-  })(),
-
-  lerpButtonTransform: (function () {
-    var quaternion = new THREE.Quaternion();
-    return function (buttonName, buttonValue) {
-      var buttonMeshInfo = this.loadedMeshInfo.buttonMeshes[buttonName];
-      if (!buttonMeshInfo) return;
-
-      var min = buttonMeshInfo.unpressed;
-      var max = buttonMeshInfo.pressed;
-      var target = buttonMeshInfo.value;
-
-      target.setRotationFromQuaternion(quaternion.copy(min.quaternion).slerp(max.quaternion, buttonValue));
-      target.position.lerpVectors(min.position, max.position, buttonValue);
-    };
-  })(),
-
-  modelReady: function () {
-    this.el.emit('controllermodelready', {
-      name: 'windows-motion-controls',
-      model: this.data.model,
-      rayOrigin: this.rayOrigin
-    });
-  },
-
-  onButtonChanged: function (evt) {
-    var buttonName = this.mapping.buttons[evt.detail.id];
-
-    if (buttonName) {
-      // Update the button mesh transform
-      if (this.loadedMeshInfo && this.loadedMeshInfo.buttonMeshes) {
-        this.lerpButtonTransform(buttonName, evt.detail.state.value);
-      }
-
-      // Only emit events for buttons that we know how to map from index to name
-      this.el.emit(buttonName + 'changed', evt.detail.state);
-    }
-  },
-
-  onAxisMoved: function (evt) {
-    var numAxes = this.mapping.axisMeshNames.length;
-
-    // Only attempt to update meshes if we have valid data.
-    if (this.loadedMeshInfo && this.loadedMeshInfo.axisMeshes) {
-      for (var axis = 0; axis < numAxes; axis++) {
-        // Update the button mesh transform
-        this.lerpAxisTransform(axis, evt.detail.axis[axis] || 0.0);
-      }
-    }
-
-    this.emitIfAxesChanged(this, this.mapping.axes, evt);
-  },
-
-  setModelVisibility: function (visible) {
-    var model = this.el.getObject3D('mesh');
-    visible = visible !== undefined ? visible : this.modelVisible;
-    this.modelVisible = visible;
-    if (!model) { return; }
-    model.visible = visible;
-  }
-});
-
-},{"../constants":116,"../core/component":125,"../utils/":195,"../utils/bind":189,"../utils/tracked-controls":200}],115:[function(_dereq_,module,exports){
-/**
- * Animation configuration options for TWEEN.js animations.
- * Used by `<a-animation>`.
- */
-var TWEEN = _dereq_('@tweenjs/tween.js');
-
-var DIRECTIONS = {
-  alternate: 'alternate',
-  alternateReverse: 'alternate-reverse',
-  normal: 'normal',
-  reverse: 'reverse'
-};
-
-var EASING_FUNCTIONS = {
-  'linear': TWEEN.Easing.Linear.None,
-
-  'ease': TWEEN.Easing.Cubic.InOut,
-  'ease-in': TWEEN.Easing.Cubic.In,
-  'ease-out': TWEEN.Easing.Cubic.Out,
-  'ease-in-out': TWEEN.Easing.Cubic.InOut,
-
-  'ease-cubic': TWEEN.Easing.Cubic.In,
-  'ease-in-cubic': TWEEN.Easing.Cubic.In,
-  'ease-out-cubic': TWEEN.Easing.Cubic.Out,
-  'ease-in-out-cubic': TWEEN.Easing.Cubic.InOut,
-
-  'ease-quad': TWEEN.Easing.Quadratic.InOut,
-  'ease-in-quad': TWEEN.Easing.Quadratic.In,
-  'ease-out-quad': TWEEN.Easing.Quadratic.Out,
-  'ease-in-out-quad': TWEEN.Easing.Quadratic.InOut,
-
-  'ease-quart': TWEEN.Easing.Quartic.InOut,
-  'ease-in-quart': TWEEN.Easing.Quartic.In,
-  'ease-out-quart': TWEEN.Easing.Quartic.Out,
-  'ease-in-out-quart': TWEEN.Easing.Quartic.InOut,
-
-  'ease-quint': TWEEN.Easing.Quintic.InOut,
-  'ease-in-quint': TWEEN.Easing.Quintic.In,
-  'ease-out-quint': TWEEN.Easing.Quintic.Out,
-  'ease-in-out-quint': TWEEN.Easing.Quintic.InOut,
-
-  'ease-sine': TWEEN.Easing.Sinusoidal.InOut,
-  'ease-in-sine': TWEEN.Easing.Sinusoidal.In,
-  'ease-out-sine': TWEEN.Easing.Sinusoidal.Out,
-  'ease-in-out-sine': TWEEN.Easing.Sinusoidal.InOut,
-
-  'ease-expo': TWEEN.Easing.Exponential.InOut,
-  'ease-in-expo': TWEEN.Easing.Exponential.In,
-  'ease-out-expo': TWEEN.Easing.Exponential.Out,
-  'ease-in-out-expo': TWEEN.Easing.Exponential.InOut,
-
-  'ease-circ': TWEEN.Easing.Circular.InOut,
-  'ease-in-circ': TWEEN.Easing.Circular.In,
-  'ease-out-circ': TWEEN.Easing.Circular.Out,
-  'ease-in-out-circ': TWEEN.Easing.Circular.InOut,
-
-  'ease-elastic': TWEEN.Easing.Elastic.InOut,
-  'ease-in-elastic': TWEEN.Easing.Elastic.In,
-  'ease-out-elastic': TWEEN.Easing.Elastic.Out,
-  'ease-in-out-elastic': TWEEN.Easing.Elastic.InOut,
-
-  'ease-back': TWEEN.Easing.Back.InOut,
-  'ease-in-back': TWEEN.Easing.Back.In,
-  'ease-out-back': TWEEN.Easing.Back.Out,
-  'ease-in-out-back': TWEEN.Easing.Back.InOut,
-
-  'ease-bounce': TWEEN.Easing.Bounce.InOut,
-  'ease-in-bounce': TWEEN.Easing.Bounce.In,
-  'ease-out-bounce': TWEEN.Easing.Bounce.Out,
-  'ease-in-out-bounce': TWEEN.Easing.Bounce.InOut
-};
-
-var FILLS = {
-  backwards: 'backwards',
-  both: 'both',
-  forwards: 'forwards',
-  none: 'none'
-};
-
-var REPEATS = {
-  indefinite: 'indefinite'
-};
-
-var DEFAULTS = {
-  attribute: 'rotation',
-  begin: '',
-  end: '',
-  delay: 0,
-  dur: 1000,
-  easing: 'ease',
-  direction: DIRECTIONS.normal,
-  fill: FILLS.forwards,
-  from: undefined,
-  repeat: 0,
-  to: undefined
-};
-
-module.exports.defaults = DEFAULTS;
-module.exports.directions = DIRECTIONS;
-module.exports.easingFunctions = EASING_FUNCTIONS;
-module.exports.fills = FILLS;
-module.exports.repeats = REPEATS;
-
-},{"@tweenjs/tween.js":1}],116:[function(_dereq_,module,exports){
-module.exports = {
-  AFRAME_INJECTED: 'aframe-injected',
-  DEFAULT_CAMERA_HEIGHT: 1.6,
-  DEFAULT_HANDEDNESS: 'right',
-  animation: _dereq_('./animation'),
-  keyboardevent: _dereq_('./keyboardevent')
-};
-
-},{"./animation":115,"./keyboardevent":117}],117:[function(_dereq_,module,exports){
-module.exports = {
-  // Tiny KeyboardEvent.code polyfill.
-  KEYCODE_TO_CODE: {
-    '38': 'ArrowUp',
-    '37': 'ArrowLeft',
-    '40': 'ArrowDown',
-    '39': 'ArrowRight',
-    '87': 'KeyW',
-    '65': 'KeyA',
-    '83': 'KeyS',
-    '68': 'KeyD'
-  }
-};
-
-},{}],118:[function(_dereq_,module,exports){
-var ANode = _dereq_('./a-node');
-var animationConstants = _dereq_('../constants/animation');
-var coordinates = _dereq_('../utils/').coordinates;
-var parseProperty = _dereq_('./schema').parseProperty;
-var registerElement = _dereq_('./a-register-element').registerElement;
-var TWEEN = _dereq_('@tweenjs/tween.js');
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-var bind = utils.bind;
-
-var getComponentProperty = utils.entity.getComponentProperty;
-var DEFAULTS = animationConstants.defaults;
-var DIRECTIONS = animationConstants.directions;
-var EASING_FUNCTIONS = animationConstants.easingFunctions;
-var FILLS = animationConstants.fills;
-var REPEATS = animationConstants.repeats;
-var isCoordinates = coordinates.isCoordinates;
-
-/**
- * Animation element that applies Tween animation to parent element (entity).
- * Takes after the Web Animations spec.
- *
- * @member {number} count - Decrementing counter for how many cycles of animations left to
- *         run.
- * @member {Element} el - Entity which the animation is modifying.
- * @member initialValue - Value before animation started. Used to restore state.
- * @member {bool} isRunning - Whether animation is currently running.
- * @member {function} partialSetAttribute -
- *   setAttribute function that is agnostic to whether we are setting an attribute value
- *   or a component property value. The el and the attribute names are bundled with
- *   the function.
- * @member {object} tween - tween.js object.
- */
-module.exports.AAnimation = registerElement('a-animation', {
-  prototype: Object.create(ANode.prototype, {
-    createdCallback: {
-      value: function () {
-        this.bindMethods();
-        this.isRunning = false;
-        this.partialSetAttribute = function () { /* no-op */ };
-        this.tween = null;
-      }
-    },
-
-    attachedCallback: {
-      value: function () {
-        this.el = this.parentNode;
-        this.handleMixinUpdate();
-        this.update();
-        this.load();
-      }
-    },
-
-    attributeChangedCallback: {
-      value: function (attr, oldVal, newVal) {
-        if (!this.hasLoaded || !this.isRunning) { return; }
-        this.stop();
-        this.handleMixinUpdate();
-        this.update();
-      }
-    },
-
-    detachedCallback: {
-      value: function () {
-        if (!this.isRunning) { return; }
-        this.stop();
-      }
-    },
-
-    /**
-     * Builds a Tween object to handle animations.
-     * Uses tween.js's from, to, delay, easing, repeat, onUpdate, and onComplete.
-     * Note: tween.js takes objects for its `from` and `to` values.
-     *
-     * @returns {object}
-     */
-    getTween: {
-      value: function () {
-        var self = this;
-        var data = self.data;
-        var el = self.el;
-        var animationValues;
-        var attribute = data.attribute;
-        var delay = parseInt(data.delay, 10);
-        var currentValue = getComponentProperty(el, attribute);
-        var direction = self.getDirection(data.direction);
-        var easing = EASING_FUNCTIONS[data.easing];
-        var fill = data.fill;
-        var from;
-        var repeat = data.repeat === REPEATS.indefinite ? Infinity : 0;
-        var to;
-        var toTemp;
-        var yoyo = false;
-
-        animationValues = getAnimationValues(el, attribute, data.from || self.initialValue, data.to, currentValue);
-        from = animationValues.from;
-        to = animationValues.to;
-        self.partialSetAttribute = animationValues.partialSetAttribute;
-
-        if (self.count === undefined) {
-          self.count = repeat === Infinity ? 0 : parseInt(data.repeat, 10);
-        }
-
-        if (isNaN(delay)) { delay = 0; }
-
-        // Store initial state.
-        self.initialValue = self.initialValue || cloneValue(currentValue);
-
-        // Handle indefinite + forwards + alternate yoyo edge-case (#405).
-        if (repeat === Infinity && fill === FILLS.forwards &&
-            [DIRECTIONS.alternate,
-              DIRECTIONS.alternateReverse].indexOf(data.direction) !== -1) {
-          yoyo = true;
-        }
-
-        // If reversing, swap from and to.
-        if (direction === DIRECTIONS.reverse) {
-          toTemp = to;
-          to = cloneValue(from);
-          from = cloneValue(toTemp);
-        }
-
-        // If fill is backwards or both, start animation at the specified from.
-        if ([FILLS.backwards, FILLS.both].indexOf(fill) !== -1) {
-          self.partialSetAttribute(from);
-        }
-
-        // Create Tween.
-        return new TWEEN.Tween(cloneValue(from))
-          .to(to, data.dur)
-          .delay(delay)
-          .easing(easing)
-          .repeat(repeat)
-          .yoyo(yoyo)
-          .onUpdate(function () {
-            self.partialSetAttribute(this);
-          })
-          .onComplete(bind(self.onCompleted, self));
-      }
-    },
-
-    /**
-     * Animation parameters changed. Stop current animation, get a new one, and start it.
-     */
-    update: {
-      value: function () {
-        var data = this.data;
-        // Terminology warning if infinite used instead of indefinite
-        if (data.repeat === 'infinite') {
-          console.warn("Using 'infinite' as 'repeat' value is invalid.  Use 'indefinite' instead.");
-        }
-        // Deprecation warning for begin when used as a delay.
-        if (data.begin !== '' && !isNaN(data.begin)) {
-          console.warn("Using 'begin' to specify a delay is deprecated. Use 'delay' instead.");
-          data.delay = data.begin;
-          data.begin = '';
-        }
-        var begin = data.begin;
-        var end = data.end;
-        // Cancel previous event listeners
-        if (this.evt) { this.removeEventListeners(this.evt); }
-        // Store new event name.
-        this.evt = {begin: begin, end: end};
-        // Add new event listeners
-        this.addEventListeners(this.evt);
-        // If `begin` is not defined, start the animation right away.
-        if (begin === '') {
-          this.stop();
-          this.start();
-        }
-      },
-      writable: window.debug
-    },
-
-    /**
-     * Callback for when a cycle of an animation is complete. Handles when to completely
-     * finish the animation.
-     *
-     * If `repeat` is set to a value, this method is called after each repeat. Repeats are
-     * handled by ending the current animation and creating a new one with `count` updated.
-     * Note that this method is *not* called if repeat is set to `indefinite`.
-     */
-    onCompleted: {
-      value: function () {
-        var data = this.data;
-        this.isRunning = false;
-        if ([FILLS.backwards, FILLS.none].indexOf(data.fill) !== -1) {
-          this.partialSetAttribute(this.initialValue);
-        }
-        if (this.count === 0) {
-          this.count = undefined;
-          this.emit('animationend');
-          return;
-        }
-        this.isRunning = false;
-        this.count--;
-        this.start();
-      }
-    },
-
-    start: {
-      value: function () {
-        var self = this;
-        // Postpone animation start until the entity has loaded
-        if (!this.el.hasLoaded) {
-          this.el.addEventListener('loaded', function () { self.start(); });
-          return;
-        }
-        if (this.isRunning || !this.el.isPlaying) { return; }
-        this.tween = this.getTween();
-        this.isRunning = true;
-        this.tween.start();
-        this.emit('animationstart');
-      },
-      writable: true
-    },
-
-    stop: {
-      value: function () {
-        var tween = this.tween;
-        if (!tween) { return; }
-        tween.stop();
-        this.isRunning = false;
-        if ([FILLS.backwards, FILLS.none].indexOf(this.data.fill) !== -1) {
-          this.partialSetAttribute(this.initialValue);
-        }
-        this.emit('animationstop');
-      },
-      writable: true
-    },
-
-    /**
-     * Handle alternating directions. Given the current direction, calculate the next one,
-     * and store the current one.
-     *
-     * @param {string} direction
-     * @returns {string} Direction that the next individual cycle of the animation will go
-     *          towards.
-     */
-    getDirection: {
-      value: function (direction) {
-        if (direction === DIRECTIONS.alternate) {
-          this.prevDirection =
-            this.prevDirection === DIRECTIONS.normal ? DIRECTIONS.reverse : DIRECTIONS.normal;
-          return this.prevDirection;
-        }
-        if (direction === DIRECTIONS.alternateReverse) {
-          this.prevDirection =
-            this.prevDirection === DIRECTIONS.reverse ? DIRECTIONS.normal : DIRECTIONS.reverse;
-          return this.prevDirection;
-        }
-        return direction;
-      }
-    },
-
-    /**
-     * Preemptive binding to attach/detach event listeners (see `update`).
-     */
-    bindMethods: {
-      value: function () {
-        this.start = bind(this.start, this);
-        this.stop = bind(this.stop, this);
-        this.onStateAdded = bind(this.onStateAdded, this);
-        this.onStateRemoved = bind(this.onStateRemoved, this);
-      }
-    },
-
-    addEventListeners: {
-      value: function (evts) {
-        var el = this.el;
-        var self = this;
-        utils.splitString(evts.begin).forEach(function (evt) {
-          el.addEventListener(evt, self.start);
-        });
-        utils.splitString(evts.end).forEach(function (evt) {
-          el.addEventListener(evt, self.stop);
-        });
-        // If "begin" is an event name, wait. If it is not defined, start.
-        if (evts.begin === '') { el.addEventListener('play', this.start); }
-        el.addEventListener('pause', this.stop);
-        el.addEventListener('stateadded', this.onStateAdded);
-        el.addEventListener('stateremoved', this.onStateRemoved);
-      }
-    },
-
-    removeEventListeners: {
-      value: function (evts) {
-        var el = this.el;
-        var start = this.start;
-        var stop = this.stop;
-        utils.splitString(evts.begin).forEach(function (evt) {
-          el.removeEventListener(evt, start);
-        });
-        utils.splitString(evts.end).forEach(function (evt) {
-          el.removeEventListener(evt, stop);
-        });
-        el.removeEventListener('stateadded', this.onStateAdded);
-        el.removeEventListener('stateremoved', this.onStateRemoved);
-      }
-    },
-
-    onStateAdded: {
-      value: function (evt) {
-        if (evt.detail.state === this.data.begin) { this.start(); }
-      },
-      writable: true
-    },
-
-    onStateRemoved: {
-      value: function (evt) {
-        if (evt.detail.state === this.data.begin) { this.stop(); }
-      },
-      writable: true
-    },
-
-    /**
-     * Applies animation data from a mixin element.
-     * Works the same as component mixins but reimplemented because animations
-     * aren't components.
-     */
-    handleMixinUpdate: {
-      value: function () {
-        var data = {};
-        var elData;
-        var mixinData;
-        var mixinEl;
-
-        // Get mixin data.
-        mixinEl = document.querySelector('#' + this.getAttribute('mixin'));
-        mixinData = mixinEl ? utils.getElData(mixinEl, DEFAULTS) : {};
-
-        elData = utils.getElData(this, DEFAULTS);
-        utils.extend(data, DEFAULTS, mixinData, elData);
-        this.data = data;
-      }
-    }
-  })
-});
-
-function cloneValue (val) {
-  return utils.extend({}, val);
-}
-
-/**
- * Deduces different animation values based on whether we are:
- *   - animating an inner attribute of a component.
- *   - animating a coordinate component.
- *   - animating a boolean.
- *   - animating a number.
- *
- * @param {Element} el
- * @param {string} attribute - Tells what to animate based on whether it is dot-separated.
- * @param {string} dataFrom - Data `from` value.
- * @param {string} dataTo - Data `to` value.
- * @param currentValue
- * @returns {object}
- *   Object with keys [from, to, partialSetAttribute].
- *     `from` and `to`
- *        Objects where key is attribute being animated and value is value.
- *     `partialSetAttribute`
- *        Closured-function that tells tween how to update the component.
- */
-function getAnimationValues (el, attribute, dataFrom, dataTo, currentValue) {
-  var attributeSplit = attribute.split('.');
-  var schema;
-  var component;
-  var componentPropName;
-  var componentName;
-  var from = {};
-  var partialSetAttribute;
-  var to = {};
-  if (attributeSplit.length === 2) {
-    if (isColor()) {
-      getForColorComponent();
-    } else {
-      getForComponentAttribute();
-    }
-  } else if (dataTo && isCoordinates(dataTo)) {
-    getForCoordinateComponent();
-  } else if (['true', 'false'].indexOf(dataTo) !== -1) {
-    getForBoolean();
-  } else if (isNaN(dataTo)) {
-    getForColorComponent();
-  } else {
-    getForNumber();
-  }
-  return {
-    from: from,
-    partialSetAttribute: partialSetAttribute,
-    to: to
-  };
-
-  /**
-   * Match the schema type to color
-   * @return {bool} if the schema is of type color
-   */
-  function isColor () {
-    var componentName = attributeSplit[0];
-    var propertyName = attributeSplit[1];
-    var component = el.components[componentName];
-    var schema = component && component.schema;
-    return schema && schema[propertyName] && schema[propertyName].type === 'color';
-  }
-
-  /**
-   * Animating a component that has multiple attributes (e.g., geometry.width).
-   */
-  function getForComponentAttribute () {
-    componentName = attributeSplit[0];
-    componentPropName = attributeSplit[1];
-    component = el.components[componentName];
-    if (!component) {
-      el.setAttribute(componentName, '');
-      component = el.components[componentName];
-    }
-    schema = component.schema;
-    if (dataFrom === undefined) {  // dataFrom can be 0.
-      from[attribute] = getComponentProperty(el, attribute);
-    } else {
-      from[attribute] = dataFrom;
-    }
-    from[attribute] = parseProperty(from[attribute], schema[componentPropName]);
-    to[attribute] = parseProperty(dataTo, schema[componentPropName]);
-    partialSetAttribute = function (value) {
-      if (!(attribute in value)) { return; }
-      el.setAttribute(componentName, componentPropName, value[attribute]);
-    };
-  }
-
-  /**
-   * Animating a component that is an XYZ coordinate (e.g., position).
-   * Will be tweening {x, y, z} all at once.
-   */
-  function getForCoordinateComponent () {
-    from = dataFrom ? coordinates.parse(dataFrom) : currentValue;
-    to = coordinates.parse(dataTo);
-    partialSetAttribute = function (value) {
-      el.setAttribute(attribute, value);
-    };
-  }
-
-  /**
-   * Animation a boolean (e.g., visible).
-   * Have to convert from boolean to an integer (0 is false, > 0 is true) for tween.
-   */
-  function getForBoolean () {
-    if (dataFrom === undefined) {
-      from[attribute] = false;
-    } else {
-      from[attribute] = strToBool(dataFrom);
-    }
-    from[attribute] = boolToNum(from[attribute]);
-    to[attribute] = boolToNum(strToBool(dataTo));
-    partialSetAttribute = function (value) {
-      el.setAttribute(attribute, !!value[attribute]);
-    };
-  }
-
-  /**
-   * Animating a color component
-   *   Will convert a hex value to a THREE.Color
-   *   Then converts to hex for the setAttribute
-   */
-  function getForColorComponent () {
-    from = new THREE.Color(dataFrom || el.getAttribute(attribute));
-    to = new THREE.Color(dataTo);
-    partialSetAttribute = function (value) {
-      if (attributeSplit.length > 1) {
-        el.setAttribute(attributeSplit[0], attributeSplit[1], rgbVectorToHex(value));
-      }
-      el.setAttribute(attribute, rgbVectorToHex(value));
-    };
-  }
-
-  /**
-   * Animating a numbered attribute (e.g., opacity).
-   */
-  function getForNumber () {
-    if (dataFrom === undefined) {  // dataFrom can be 0.
-      from[attribute] = parseFloat(el.getAttribute(attribute));
-    } else {
-      from[attribute] = parseFloat(dataFrom);
-    }
-    to[attribute] = parseFloat(dataTo);
-    partialSetAttribute = function (value) {
-      el.setAttribute(attribute, value[attribute]);
-    };
-  }
-}
-module.exports.getAnimationValues = getAnimationValues;
-
-/**
- * Converts string to bool.
- *
- * @param {string} str - `true` or `false`.
- * @returns {bool}
- */
-function strToBool (str) {
-  if (str === 'true') { return true; }
-  return false;
-}
-
-/**
- * Converts boolean to number.
- *
- * @param {bool}
- * @returns {number}
- */
-function boolToNum (bool) {
-  return bool ? 1 : 0;
-}
-
-/**
- * Converts a number 0-255 to hex
- * @param {number} color number 0 - 255
- * @returns {string} hex value of number bassed
- */
-function componentToHex (color) {
-  var hex = color.toString(16);
-  return hex.length === 1 ? '0' + hex : hex;
-}
-
-/**
- * Clamps a number to 0-1
- * Then converts that number to 0-255
- * @param {number} color number 0 - 1
- * @returns {number} color number 0 - 255
- */
-function convertToIntegerColor (color) {
-  return Math.floor(Math.min(Math.abs(color), 1) * 255);
-}
-
-/**
- * Converts a rgb object into a hex string
- * @param {object} color { r: 1, g: 1, b: 1 }
- * @returns {string} hex value #ffffff
- */
-function rgbVectorToHex (color) {
-  return '#' + ['r', 'g', 'b'].map(function (prop) {
-    return componentToHex(convertToIntegerColor(color[prop]));
-  }).join('');
-}
-
-},{"../constants/animation":115,"../lib/three":173,"../utils/":195,"./a-node":123,"./a-register-element":124,"./schema":133,"@tweenjs/tween.js":1}],119:[function(_dereq_,module,exports){
-var ANode = _dereq_('./a-node');
-var bind = _dereq_('../utils/bind');
-var debug = _dereq_('../utils/debug');
-var registerElement = _dereq_('./a-register-element').registerElement;
-var THREE = _dereq_('../lib/three');
-
-var fileLoader = new THREE.FileLoader();
-var warn = debug('core:a-assets:warn');
-
-/**
- * Asset management system. Handles blocking on asset loading.
- */
-module.exports = registerElement('a-assets', {
-  prototype: Object.create(ANode.prototype, {
-    createdCallback: {
-      value: function () {
-        this.isAssets = true;
-        this.fileLoader = fileLoader;
-        this.timeout = null;
-      }
-    },
-
-    attachedCallback: {
-      value: function () {
-        var self = this;
-        var i;
-        var loaded = [];
-        var mediaEl;
-        var mediaEls;
-        var imgEl;
-        var imgEls;
-        var timeout;
-
-        if (!this.parentNode.isScene) {
-          throw new Error('<a-assets> must be a child of a <a-scene>.');
-        }
-
-        // Wait for <img>s.
-        imgEls = this.querySelectorAll('img');
-        for (i = 0; i < imgEls.length; i++) {
-          imgEl = fixUpMediaElement(imgEls[i]);
-          loaded.push(new Promise(function (resolve, reject) {
-            // Set in cache because we won't be needing to call three.js loader if we have.
-            // a loaded media element.
-            THREE.Cache.files[imgEls[i].getAttribute('src')] = imgEl;
-            imgEl.onload = resolve;
-            imgEl.onerror = reject;
-          }));
-        }
-
-        // Wait for <audio>s and <video>s.
-        mediaEls = this.querySelectorAll('audio, video');
-        for (i = 0; i < mediaEls.length; i++) {
-          mediaEl = fixUpMediaElement(mediaEls[i]);
-          if (!mediaEl.src && !mediaEl.srcObject) {
-            warn('Audio/video asset has neither `src` nor `srcObject` attributes.');
-          }
-          loaded.push(mediaElementLoaded(mediaEl));
-        }
-
-        // Trigger loaded for scene to start rendering.
-        Promise.all(loaded).then(bind(this.load, this));
-
-        // Timeout to start loading anyways.
-        timeout = parseInt(this.getAttribute('timeout'), 10) || 3000;
-        this.timeout = setTimeout(function () {
-          if (self.hasLoaded) { return; }
-          warn('Asset loading timed out in ', timeout, 'ms');
-          self.emit('timeout');
-          self.load();
-        }, timeout);
-      }
-    },
-
-    detachedCallback: {
-      value: function () {
-        if (this.timeout) { clearTimeout(this.timeout); }
-      }
-    },
-
-    load: {
-      value: function () {
-        ANode.prototype.load.call(this, null, function waitOnFilter (el) {
-          return el.isAssetItem && el.hasAttribute('src');
-        });
-      }
-    }
-  })
-});
-
-/**
- * Preload using XHRLoader for any type of asset.
- */
-registerElement('a-asset-item', {
-  prototype: Object.create(ANode.prototype, {
-    createdCallback: {
-      value: function () {
-        this.data = null;
-        this.isAssetItem = true;
-      }
-    },
-
-    attachedCallback: {
-      value: function () {
-        var self = this;
-        var src = this.getAttribute('src');
-        fileLoader.setResponseType(
-          this.getAttribute('response-type') || inferResponseType(src));
-        fileLoader.load(src, function handleOnLoad (response) {
-          self.data = response;
-          /*
-            Workaround for a Chrome bug. If another XHR is sent to the same url before the
-            previous one closes, the second request never finishes.
-            setTimeout finishes the first request and lets the logic triggered by load open
-            subsequent requests.
-            setTimeout can be removed once the fix for the bug below ships:
-            https://bugs.chromium.org/p/chromium/issues/detail?id=633696&q=component%3ABlink%3ENetwork%3EXHR%20&colspec=ID%20Pri%20M%20Stars%20ReleaseBlock%20Component%20Status%20Owner%20Summary%20OS%20Modified
-          */
-          setTimeout(function load () { ANode.prototype.load.call(self); });
-        }, function handleOnProgress (xhr) {
-          self.emit('progress', {
-            loadedBytes: xhr.loaded,
-            totalBytes: xhr.total,
-            xhr: xhr
-          });
-        }, function handleOnError (xhr) {
-          self.emit('error', {xhr: xhr});
-        });
-      }
-    }
-  })
-});
-
-/**
- * Create a Promise that resolves once the media element has finished buffering.
- *
- * @param {Element} el - HTMLMediaElement.
- * @returns {Promise}
- */
-function mediaElementLoaded (el) {
-  if (!el.hasAttribute('autoplay') && el.getAttribute('preload') !== 'auto') {
-    return;
-  }
-
-  // If media specifies autoplay or preload, wait until media is completely buffered.
-  return new Promise(function (resolve, reject) {
-    if (el.readyState === 4) { return resolve(); }  // Already loaded.
-    if (el.error) { return reject(); }  // Error.
-
-    el.addEventListener('loadeddata', checkProgress, false);
-    el.addEventListener('progress', checkProgress, false);
-    el.addEventListener('error', reject, false);
-
-    function checkProgress () {
-      // Add up the seconds buffered.
-      var secondsBuffered = 0;
-      for (var i = 0; i < el.buffered.length; i++) {
-        secondsBuffered += el.buffered.end(i) - el.buffered.start(i);
-      }
-
-      // Compare seconds buffered to media duration.
-      if (secondsBuffered >= el.duration) {
-        // Set in cache because we won't be needing to call three.js loader if we have.
-        // a loaded media element.
-        THREE.Cache.files[el.getAttribute('src')] = el;
-        resolve();
-      }
-    }
-  });
-}
-
-/**
- * Automatically add attributes to media elements where convenient.
- * crossorigin, playsinline.
- */
-function fixUpMediaElement (mediaEl) {
-  // Cross-origin.
-  var newMediaEl = setCrossOrigin(mediaEl);
-
-  // Plays inline for mobile.
-  if (newMediaEl.tagName && newMediaEl.tagName.toLowerCase() === 'video') {
-    newMediaEl.setAttribute('playsinline', '');
-    newMediaEl.setAttribute('webkit-playsinline', '');
-  }
-
-  if (newMediaEl !== mediaEl) {
-    mediaEl.parentNode.appendChild(newMediaEl);
-    mediaEl.parentNode.removeChild(mediaEl);
-  }
-  return newMediaEl;
-}
-
-/**
- * Automatically set `crossorigin` if not defined on the media element.
- * If it is not defined, we must create and re-append a new media element <img> and
- * have the browser re-request it with `crossorigin` set.
- *
- * @param {Element} Media element (e.g., <img>, <audio>, <video>).
- * @returns {Element} Media element to be used to listen to for loaded events.
- */
-function setCrossOrigin (mediaEl) {
-  var newMediaEl;
-  var src;
-
-  // Already has crossorigin set.
-  if (mediaEl.hasAttribute('crossorigin')) { return mediaEl; }
-
-  src = mediaEl.getAttribute('src');
-
-  if (src !== null) {
-    // Does not have protocol.
-    if (src.indexOf('://') === -1) { return mediaEl; }
-
-    // Determine if cross origin is actually needed.
-    if (extractDomain(src) === window.location.host) { return mediaEl; }
-  }
-
-  warn('Cross-origin element (e.g., <img>) was requested without `crossorigin` set. ' +
-       'A-Frame will re-request the asset with `crossorigin` attribute set. ' +
-       'Please set `crossorigin` on the element (e.g., <img crossorigin="anonymous">)', src);
-  mediaEl.crossOrigin = 'anonymous';
-  newMediaEl = mediaEl.cloneNode(true);
-  return newMediaEl;
-}
-
-/**
- * Extract domain out of URL.
- *
- * @param {string} url
- * @returns {string}
- */
-function extractDomain (url) {
-  // Find and remove protocol (e.g., http, ftp, etc.) to get domain.
-  var domain = url.indexOf('://') > -1 ? url.split('/')[2] : url.split('/')[0];
-
-  // Find and remove port number.
-  return domain.substring(0, domain.indexOf(':'));
-}
-
-/**
- * Infer response-type attribute from src.
- * Default is text(default XMLHttpRequest.responseType)
- * but we use arraybuffer for .gltf and .glb files
- * because of THREE.GLTFLoader specification.
- *
- * @param {string} src
- * @returns {string}
- */
-function inferResponseType (src) {
-  var dotLastIndex = src.lastIndexOf('.');
-  if (dotLastIndex >= 0) {
-    var extension = src.slice(dotLastIndex, src.length);
-    if (extension === '.gltf' || extension === '.glb') {
-      return 'arraybuffer';
-    }
-  }
-  return 'text';
-}
-module.exports.inferResponseType = inferResponseType;
-
-},{"../lib/three":173,"../utils/bind":189,"../utils/debug":191,"./a-node":123,"./a-register-element":124}],120:[function(_dereq_,module,exports){
-var debug = _dereq_('../utils/debug');
-var registerElement = _dereq_('./a-register-element').registerElement;
-
-var warn = debug('core:cubemap:warn');
-
-/**
- * Cubemap element that handles validation and exposes list of URLs.
- * Does not listen to updates.
- */
-module.exports = registerElement('a-cubemap', {
-  prototype: Object.create(window.HTMLElement.prototype, {
-    /**
-     * Calculates this.srcs.
-     */
-    attachedCallback: {
-      value: function () {
-        this.srcs = this.validate();
-      },
-      writable: window.debug
-    },
-
-    /**
-     * Checks for exactly six elements with [src].
-     * Does not check explicitly for <img>s in case user does not want
-     * prefetching.
-     *
-     * @returns {Array|null} - six URLs if valid, else null.
-     */
-    validate: {
-      value: function () {
-        var elements = this.querySelectorAll('[src]');
-        var i;
-        var srcs = [];
-        if (elements.length === 6) {
-          for (i = 0; i < elements.length; i++) {
-            srcs.push(elements[i].getAttribute('src'));
-          }
-          return srcs;
-        }
-        // Else if there are not six elements, throw a warning.
-        warn(
-          '<a-cubemap> did not contain exactly six elements each with a ' +
-          '`src` attribute.');
-      },
-      writable: window.debug
-    }
-  })
-});
-
-},{"../utils/debug":191,"./a-register-element":124}],121:[function(_dereq_,module,exports){
-var ANode = _dereq_('./a-node');
-var COMPONENTS = _dereq_('./component').components;
-var registerElement = _dereq_('./a-register-element').registerElement;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-
-var AEntity;
-var debug = utils.debug('core:a-entity:debug');
-var warn = utils.debug('core:a-entity:warn');
-
-var MULTIPLE_COMPONENT_DELIMITER = '__';
-
-/**
- * Entity is a container object that components are plugged into to comprise everything in
- * the scene. In A-Frame, they inherently have position, rotation, and scale.
- *
- * To be able to take components, the scene element inherits from the entity definition.
- *
- * @member {object} components - entity's currently initialized components.
- * @member {object} object3D - three.js object.
- * @member {array} states
- * @member {boolean} isPlaying - false if dynamic behavior of the entity is paused.
- */
-var proto = Object.create(ANode.prototype, {
-  defaultComponents: {
-    value: {
-      position: '',
-      rotation: '',
-      scale: '',
-      visible: ''
-    }
-  },
-
-  createdCallback: {
-    value: function () {
-      this.components = {};
-      // To avoid double initializations and infinite loops.
-      this.initializingComponents = {};
-      this.componentsToUpdate = {};
-      this.isEntity = true;
-      this.isPlaying = false;
-      this.object3D = new THREE.Group();
-      this.object3D.el = this;
-      this.object3DMap = {};
-      this.parentEl = null;
-      this.rotationObj = {};
-      this.states = [];
-    }
-  },
-
-  /**
-   * Handle changes coming from the browser DOM inspector.
-   */
-  attributeChangedCallback: {
-    value: function (attr, oldVal, newVal) {
-      var component = this.components[attr];
-      // If the empty string is passed by the component initialization
-      // logic we ignore the component update.
-      if (component && component.justInitialized && newVal === '') {
-        delete component.justInitialized;
-        return;
-      }
-      // When a component is removed after calling el.removeAttribute('material')
-      if (!component && newVal === null) { return; }
-      this.setEntityAttribute(attr, oldVal, newVal);
-    }
-  },
-
-  /**
-   * Add to parent, load, play.
-   */
-  attachedCallback: {
-    value: function () {
-      var assetsEl;  // Asset management system element.
-      var sceneEl = this.sceneEl;
-      var self = this;  // Component.
-
-      this.addToParent();
-
-      // Don't .load() scene on attachedCallback.
-      if (this.isScene) { return; }
-
-      // Gracefully not error when outside of <a-scene> (e.g., tests).
-      if (!sceneEl) {
-        this.load();
-        return;
-      }
-
-      // Wait for asset management system to finish before loading.
-      assetsEl = sceneEl.querySelector('a-assets');
-      if (assetsEl && !assetsEl.hasLoaded) {
-        assetsEl.addEventListener('loaded', function () { self.load(); });
-        return;
-      }
-      this.load();
-    }
-  },
-
-  /**
-   * Tell parent to remove this element's object3D from its object3D.
-   * Do not call on scene element because that will cause a call to document.body.remove().
-   */
-  detachedCallback: {
-    value: function () {
-      var componentName;
-
-      if (!this.parentEl) { return; }
-
-      // Remove components.
-      for (componentName in this.components) { this.removeComponent(componentName); }
-
-      if (this.isScene) { return; }
-
-      this.removeFromParent();
-      ANode.prototype.detachedCallback.call(this);
-
-      // Remove cyclic reference.
-      this.object3D.el = null;
-    }
-  },
-
-  /**
-   * Apply mixin to component.
-   */
-  handleMixinUpdate: {
-    value: function (attrName) {
-      if (!attrName) {
-        this.updateComponents();
-        return;
-      }
-      this.updateComponent(attrName, this.getDOMAttribute(attrName));
-    }
-  },
-
-  getObject3D: {
-    value: function (type) {
-      return this.object3DMap[type];
-    }
-  },
-
-  /**
-   * Set a THREE.Object3D into the map.
-   *
-   * @param {string} type - Developer-set name of the type of object, will be unique per type.
-   * @param {object} obj - A THREE.Object3D.
-   */
-  setObject3D: {
-    value: function (type, obj) {
-      var oldObj;
-      var self = this;
-
-      if (!(obj instanceof THREE.Object3D)) {
-        throw new Error(
-          '`Entity.setObject3D` was called with an object that was not an instance of ' +
-          'THREE.Object3D.'
-        );
-      }
-
-      // Remove existing object of the type.
-      oldObj = this.getObject3D(type);
-      if (oldObj) { this.object3D.remove(oldObj); }
-
-      // Set references to A-Frame entity.
-      obj.el = this;
-      if (obj.children.length) {
-        obj.traverse(function bindEl (child) {
-          child.el = self;
-        });
-      }
-
-      // Add.
-      this.object3D.add(obj);
-      this.object3DMap[type] = obj;
-      this.emit('object3dset', {object: obj, type: type});
-    }
-  },
-
-  /**
-   * Remove object from scene and entity object3D map.
-   */
-  removeObject3D: {
-    value: function (type) {
-      var obj = this.getObject3D(type);
-      if (!obj) {
-        warn('Tried to remove `Object3D` of type:', type, 'which was not defined.');
-        return;
-      }
-      this.object3D.remove(obj);
-      delete this.object3DMap[type];
-      this.emit('object3dremove', {type: type});
-    }
-  },
-
-  /**
-   * Gets or creates an object3D of a given type.
-   *
-   * @param {string} type - Type of the object3D.
-   * @param {string} Constructor - Constructor to use to create the object3D if needed.
-   * @returns {object}
-   */
-  getOrCreateObject3D: {
-    value: function (type, Constructor) {
-      var object3D = this.getObject3D(type);
-      if (!object3D && Constructor) {
-        object3D = new Constructor();
-        this.setObject3D(type, object3D);
-      }
-      warn('`getOrCreateObject3D` has been deprecated. Use `setObject3D()` ' +
-           'and `object3dset` event instead.');
-      return object3D;
-    }
-  },
-
-  /**
-   * Add child entity.
-   *
-   * @param {Element} el - Child entity.
-   */
-  add: {
-    value: function (el) {
-      if (!el.object3D) {
-        throw new Error("Trying to add an element that doesn't have an `object3D`");
-      }
-      this.object3D.add(el.object3D);
-      this.emit('child-attached', {el: el});
-    }
-  },
-
-  /**
-   * Tell parentNode to add this entity to itself.
-   */
-  addToParent: {
-    value: function () {
-      var parentNode = this.parentEl = this.parentNode;
-
-      // `!parentNode` check primarily for unit tests.
-      if (!parentNode || !parentNode.add || this.attachedToParent) { return; }
-
-      parentNode.add(this);
-      this.attachedToParent = true;  // To prevent multiple attachments to same parent.
-    }
-  },
-
-  /**
-   * Tell parentNode to remove this entity from itself.
-   */
-  removeFromParent: {
-    value: function () {
-      var parentEl = this.parentEl;
-      this.parentEl.remove(this);
-      this.attachedToParent = false;
-      this.parentEl = this.parentNode = null;
-      parentEl.emit('child-detached', {el: this});
-    }
-  },
-
-  load: {
-    value: function () {
-      var self = this;
-
-      if (this.hasLoaded || !this.parentEl) { return; }
-
-      ANode.prototype.load.call(this, function entityLoadCallback () {
-        // Check if entity was detached while it was waiting to load.
-        if (!self.parentEl) { return; }
-
-        self.updateComponents();
-        if (self.isScene || self.parentEl.isPlaying) { self.play(); }
-      });
-    },
-    writable: window.debug
-  },
-
-  /**
-   * Remove child entity.
-   *
-   * @param {Element} el - Child entity.
-   */
-  remove: {
-    value: function (el) {
-      this.object3D.remove(el.object3D);
-    }
-  },
-
-  /**
-   * @returns {array} Direct children that are entities.
-   */
-  getChildEntities: {
-    value: function () {
-      var children = this.children;
-      var childEntities = [];
-
-      for (var i = 0; i < children.length; i++) {
-        var child = children[i];
-        if (child instanceof AEntity) {
-          childEntities.push(child);
-        }
-      }
-
-      return childEntities;
-    }
-  },
-
-  /**
-   * Initialize component.
-   *
-   * @param {string} attrName - Attribute name asociated to the component.
-   * @param {object} data - Component data
-   * @param {boolean} isDependency - True if the component is a dependency.
-   */
-  initComponent: {
-    value: function (attrName, data, isDependency) {
-      var component;
-      var componentId;
-      var componentInfo;
-      var componentName;
-      var isComponentDefined;
-
-      componentInfo = utils.split(attrName, MULTIPLE_COMPONENT_DELIMITER);
-      componentId = componentInfo[1];
-      componentName = componentInfo[0];
-
-      // Not a registered component.
-      if (!COMPONENTS[componentName]) { return; }
-
-      // Component is not a dependency and is undefined.
-      // If a component is a dependency, then it is okay to have no data.
-      isComponentDefined = checkComponentDefined(this, attrName) ||
-                           data !== undefined;
-      if (!isComponentDefined && !isDependency) { return; }
-
-      // Component already initialized.
-      if (attrName in this.components) { return; }
-
-      // Initialize dependencies first
-      this.initComponentDependencies(componentName);
-
-      // If component name has an id we check component type multiplic
-      if (componentId && !COMPONENTS[componentName].multiple) {
-        throw new Error('Trying to initialize multiple ' +
-                        'components of type `' + componentName +
-                        '`. There can only be one component of this type per entity.');
-      }
-      component = new COMPONENTS[componentName].Component(this, data, componentId);
-      if (this.isPlaying) { component.play(); }
-
-      // Components are reflected in the DOM as attributes but the state is not shown
-      // hence we set the attribute to empty string.
-      // The flag justInitialized is for attributeChangedCallback to not overwrite
-      // the component with the empty string.
-      if (!this.hasAttribute(attrName)) {
-        component.justInitialized = true;
-        window.HTMLElement.prototype.setAttribute.call(this, attrName, '');
-      }
-
-      debug('Component initialized: %s', attrName);
-    },
-    writable: window.debug
-  },
-
-  /**
-   * Initialize dependencies of a component.
-   *
-   * @param {string} name - Root component name.
-   */
-  initComponentDependencies: {
-    value: function (name) {
-      var self = this;
-      var component = COMPONENTS[name];
-      var dependencies;
-      var i;
-
-      // Not a component.
-      if (!component) { return; }
-
-      // No dependencies.
-      dependencies = COMPONENTS[name].dependencies;
-
-      if (!dependencies) { return; }
-
-      // Initialize dependencies.
-      for (i = 0; i < dependencies.length; i++) {
-        // Call getAttribute to initialize the data from the DOM.
-        self.initComponent(
-          dependencies[i],
-          window.HTMLElement.prototype.getAttribute.call(self, dependencies[i]) || undefined,
-          true
-        );
-      }
-    }
-  },
-
-  removeComponent: {
-    value: function (name) {
-      var component;
-      var isDefault;
-
-      // Don't remove default or mixed-in components.
-      isDefault = name in this.defaultComponents;
-      if (isDefault) { return; }
-
-      component = this.components[name];
-      if (!component) { return; }
-
-      // Wait for component to initialize.
-      if (!component.initialized) {
-        this.addEventListener('componentinitialized', function tryRemoveLater (evt) {
-          if (evt.detail.name !== name) { return; }
-          this.removeComponent(name);
-          this.removeEventListener('componentinitialized', tryRemoveLater);
-        });
-        return;
-      }
-
-      component.pause();
-      component.remove();
-      delete this.components[name];
-      this.emit('componentremoved', component.evtDetail);
-    },
-    writable: window.debug
-  },
-
-  /**
-   * Initialize or update all components.
-   * Build data using initial components, defined attributes, mixins, and defaults.
-   * Update default components before the rest.
-   *
-   * @member {function} getExtraComponents - Can be implemented to include component data
-   *   from other sources (e.g., implemented by primitives).
-   */
-  updateComponents: {
-    value: function () {
-      var data;
-      var extraComponents;
-      var i;
-      var name;
-      var componentsToUpdate = this.componentsToUpdate;
-
-      if (!this.hasLoaded) { return; }
-
-      // Gather mixin-defined components.
-      for (i = 0; i < this.mixinEls.length; i++) {
-        for (name in this.mixinEls[i].componentCache) {
-          if (isComponent(name)) { componentsToUpdate[name] = true; }
-        }
-      }
-
-      // Gather from extra initial component data if defined (e.g., primitives).
-      if (this.getExtraComponents) {
-        extraComponents = this.getExtraComponents();
-        for (name in extraComponents) {
-          if (isComponent(name)) { componentsToUpdate[name] = true; }
-        }
-      }
-
-      // Gather entity-defined components.
-      for (i = 0; i < this.attributes.length; ++i) {
-        name = this.attributes[i].name;
-        if (isComponent(name)) { componentsToUpdate[name] = true; }
-      }
-
-      // Initialze or update default components first.
-      for (name in this.defaultComponents) {
-        data = mergeComponentData(this.getDOMAttribute(name),
-                                  extraComponents && extraComponents[name]);
-        this.updateComponent(name, data);
-        delete componentsToUpdate[name];
-      }
-
-      // Initialize or update rest of components.
-      for (name in componentsToUpdate) {
-        data = mergeComponentData(this.getDOMAttribute(name),
-                                  extraComponents && extraComponents[name]);
-        this.updateComponent(name, data);
-        delete componentsToUpdate[name];
-      }
-    },
-    writable: window.debug
-  },
-
-  /**
-   * Initialize, update, or remove a single component.
-   *
-   * When initializing, we set the component on `this.components`.
-   *
-   * @param {string} attr - Component name.
-   * @param {object} attrValue - Value of the DOM attribute.
-   * @param {boolean} clobber - If new attrValue completely replaces previous properties.
-   */
-  updateComponent: {
-    value: function (attr, attrValue, clobber) {
-      var component = this.components[attr];
-      var isDefault = attr in this.defaultComponents;
-      if (component) {
-        // Remove component.
-        if (attrValue === null && !isDefault) {
-          this.removeComponent(attr);
-          return;
-        }
-        // Component already initialized. Update component.
-        component.updateProperties(attrValue, clobber);
-        return;
-      }
-
-      // Component not yet initialized. Initialize component.
-      this.initComponent(attr, attrValue, false);
-    }
-  },
-
-  /**
-   * If `attr` is a component name, detach the component from the entity.
-   *
-   * If `propertyName` is given, reset the component property value to its default.
-   *
-   * @param {string} attr - Attribute name, which could also be a component name.
-   * @param {string} propertyName - Component prop name, if resetting an individual prop.
-   */
-  removeAttribute: {
-    value: function (attr, propertyName) {
-      var component = this.components[attr];
-
-      // Remove component.
-      if (component && propertyName === undefined) {
-        this.removeComponent(attr);
-        // Do not remove the component from the DOM if default component.
-        if (this.components[attr]) { return; }
-      }
-
-      // Reset component property value.
-      if (component && propertyName !== undefined) {
-        component.resetProperty(propertyName);
-        return;
-      }
-
-      // Remove mixins.
-      if (attr === 'mixin') {
-        this.mixinUpdate('');
-      }
-
-      window.HTMLElement.prototype.removeAttribute.call(this, attr);
-    }
-  },
-
-  /**
-   * Start dynamic behavior associated with entity such as dynamic components and animations.
-   * Tell all children entities to also play.
-   */
-  play: {
-    value: function () {
-      var entities;
-      var i;
-      var key;
-
-      // Already playing.
-      if (this.isPlaying || !this.hasLoaded) { return; }
-      this.isPlaying = true;
-
-      // Wake up all components.
-      for (key in this.components) { this.components[key].play(); }
-
-      // Tell all child entities to play.
-      entities = this.getChildEntities();
-      for (i = 0; i < entities.length; i++) { entities[i].play(); }
-
-      this.emit('play');
-    },
-    writable: true
-  },
-
-  /**
-   * Pause dynamic behavior associated with entity such as dynamic components and animations.
-   * Tell all children entities to also pause.
-   */
-  pause: {
-    value: function () {
-      var entities;
-      var i;
-      var key;
-
-      if (!this.isPlaying) { return; }
-      this.isPlaying = false;
-
-      // Sleep all components.
-      for (key in this.components) { this.components[key].pause(); }
-
-      // Tell all child entities to pause.
-      entities = this.getChildEntities();
-      for (i = 0; i < entities.length; i++) { entities[i].pause(); }
-
-      this.emit('pause');
-    },
-    writable: true
-  },
-
-  /**
-   * Deals with updates on entity-specific attributes (i.e., components and mixins).
-   *
-   * @param {string} attr
-   * @param {string} oldVal
-   * @param {string|object} newVal
-   */
-  setEntityAttribute: {
-    value: function (attr, oldVal, newVal) {
-      if (COMPONENTS[attr] || this.components[attr]) {
-        this.updateComponent(attr, newVal);
-        return;
-      }
-      if (attr === 'mixin') {
-        // Ignore if `<a-node>` code is just updating computed mixin in the DOM.
-        if (newVal === this.computedMixinStr) { return; }
-        this.mixinUpdate(newVal, oldVal);
-      }
-    }
-  },
-
-  mixinUpdate: {
-    value: function (newMixins, oldMixins) {
-      oldMixins = oldMixins || this.getAttribute('mixin');
-      this.updateMixins(newMixins, oldMixins);
-      this.updateComponents();
-    }
-  },
-
-  /**
-   * setAttribute can:
-   *
-   * 1. Set a single property of a multi-property component.
-   * 2. Set multiple properties of a multi-property component.
-   * 3. Replace properties of a multi-property component.
-   * 4. Set a value for a single-property component, mixin, or normal HTML attribute.
-   *
-   * @param {string} attrName - Component or attribute name.
-   * @param {*} arg1 - Can be a value, property name, CSS-style property string, or
-   *   object of properties.
-   * @param {*|bool} arg2 - If arg1 is a property name, this should be a value. Otherwise,
-   *   it is a boolean indicating whether to clobber previous values (defaults to false).
-   */
-  setAttribute: {
-    value: function (attrName, arg1, arg2) {
-      var newAttrValue;
-      var clobber;
-      var componentName;
-      var delimiterIndex;
-      var isDebugMode;
-
-      delimiterIndex = attrName.indexOf(MULTIPLE_COMPONENT_DELIMITER);
-      componentName = delimiterIndex > 0 ? attrName.substring(0, delimiterIndex) : attrName;
-
-      // Not a component. Normal set attribute.
-      if (!COMPONENTS[componentName]) {
-        if (attrName === 'mixin') { this.mixinUpdate(arg1); }
-        ANode.prototype.setAttribute.call(this, attrName, arg1);
-        return;
-      }
-
-      // Initialize component first if not yet initialized.
-      if (!this.components[attrName] && this.hasAttribute(attrName)) {
-        this.updateComponent(attrName,
-                             window.HTMLElement.prototype.getAttribute.call(this, attrName));
-      }
-
-      // Determine new attributes from the arguments
-      if (typeof arg2 !== 'undefined' &&
-          typeof arg1 === 'string' &&
-          arg1.length > 0 &&
-          typeof utils.styleParser.parse(arg1) === 'string') {
-        // Update a single property of a multi-property component
-        newAttrValue = {};
-        newAttrValue[arg1] = arg2;
-        clobber = false;
-      } else {
-        // Update with a value, object, or CSS-style property string, with the possiblity
-        // of clobbering previous values.
-        newAttrValue = arg1;
-        clobber = (arg2 === true);
-      }
-
-      // Update component
-      this.updateComponent(attrName, newAttrValue, clobber);
-
-      // In debug mode, write component data up to the DOM.
-      isDebugMode = this.sceneEl && this.sceneEl.getAttribute('debug');
-      if (isDebugMode) { this.components[attrName].flushToDOM(); }
-    },
-    writable: window.debug
-  },
-
-  /**
-   * Reflect component data in the DOM (as seen from the browser DOM Inspector).
-   *
-   * @param {bool} recursive - Also flushToDOM on the children.
-   **/
-  flushToDOM: {
-    value: function (recursive) {
-      var components = this.components;
-      var defaultComponents = this.defaultComponents;
-      var child;
-      var children = this.children;
-      var i;
-      var key;
-
-      // Flush entity's components to DOM.
-      for (key in components) {
-        components[key].flushToDOM(key in defaultComponents);
-      }
-
-      // Recurse.
-      if (!recursive) { return; }
-      for (i = 0; i < children.length; ++i) {
-        child = children[i];
-        if (!child.flushToDOM) { continue; }
-        child.flushToDOM(recursive);
-      }
-    }
-  },
-
-  /**
-   * If `attr` is a component, returns ALL component data including applied mixins and
-   * defaults.
-   *
-   * If `attr` is not a component, fall back to HTML getAttribute.
-   *
-   * @param {string} attr
-   * @returns {object|string} Object if component, else string.
-   */
-  getAttribute: {
-    value: function (attr) {
-      // If component, return component data.
-      var component;
-      if (attr === 'position') { return this.object3D.position; }
-      if (attr === 'rotation') { return getRotation(this); }
-      if (attr === 'scale') { return this.object3D.scale; }
-      if (attr === 'visible') { return this.object3D.visible; }
-      component = this.components[attr];
-      if (component) { return component.data; }
-      return window.HTMLElement.prototype.getAttribute.call(this, attr);
-    },
-    writable: window.debug
-  },
-
-  /**
-   * `getAttribute` used to be `getDOMAttribute` and `getComputedAttribute` used to be
-   * what `getAttribute` is now. Now legacy code.
-   *
-   * @param {string} attr
-   * @returns {object|string} Object if component, else string.
-   */
-  getComputedAttribute: {
-    value: function (attr) {
-      warn('`getComputedAttribute` is deprecated. Use `getAttribute` instead.');
-      return this.getAttribute(attr);
-    }
-  },
-
-  /**
-   * If `attr` is a component, returns JUST the component data defined on the entity.
-   * Like a partial version of `getComputedAttribute` as returned component data
-   * does not include applied mixins or defaults.
-   *
-   * If `attr` is not a component, fall back to HTML getAttribute.
-   *
-   * @param {string} attr
-   * @returns {object|string} Object if component, else string.
-   */
-  getDOMAttribute: {
-    value: function (attr) {
-      // If cached value exists, return partial component data.
-      var component = this.components[attr];
-      if (component) { return component.attrValue; }
-      return window.HTMLElement.prototype.getAttribute.call(this, attr);
-    },
-    writable: window.debug
-  },
-
-  addState: {
-    value: function (state) {
-      if (this.is(state)) { return; }
-      this.states.push(state);
-      this.emit('stateadded', state);
-    }
-  },
-
-  removeState: {
-    value: function (state) {
-      var stateIndex = this.states.indexOf(state);
-      if (stateIndex === -1) { return; }
-      this.states.splice(stateIndex, 1);
-      this.emit('stateremoved', state);
-    }
-  },
-
-  /**
-   * Checks if the element is in a given state. e.g. el.is('alive');
-   * @type {string} state - Name of the state we want to check
-   */
-  is: {
-    value: function (state) {
-      return this.states.indexOf(state) !== -1;
-    }
-  }
-});
-
-/**
- * Check if a component is *defined* for an entity, including defaults and mixins.
- * Does not check whether the component has been *initialized* for an entity.
- *
- * @param {string} el - Entity.
- * @param {string} name - Component name.
- * @returns {boolean}
- */
-function checkComponentDefined (el, name) {
-  // Check if default components contain the component.
-  if (el.defaultComponents[name] !== undefined) { return true; }
-
-  // Check if element contains the component.
-  if (el.components[name] && el.components[name].attrValue) { return true; }
-
-  return isComponentMixedIn(name, el.mixinEls);
-}
-
-/**
- * Check if any mixins contains a component.
- *
- * @param {string} name - Component name.
- * @param {array} mixinEls - Array of <a-mixin>s.
- */
-function isComponentMixedIn (name, mixinEls) {
-  var i;
-  var inMixin = false;
-  for (i = 0; i < mixinEls.length; ++i) {
-    inMixin = mixinEls[i].hasAttribute(name);
-    if (inMixin) { break; }
-  }
-  return inMixin;
-}
-
-/**
- * Given entity defined value, merge in extra data if necessary.
- * Handle both single and multi-property components.
- *
- * @param {string} attrValue - Entity data.
- * @param extraData - Entity data from another source to merge in.
- */
-function mergeComponentData (attrValue, extraData) {
-  // Extra data not defined, just return attrValue.
-  if (!extraData) { return attrValue; }
-
-  // Merge multi-property data.
-  if (extraData.constructor === Object) {
-    return utils.extend(extraData, utils.styleParser.parse(attrValue || {}));
-  }
-
-  // Return data, precendence to the defined value.
-  return attrValue || extraData;
-}
-
-function isComponent (componentName) {
-  if (componentName.indexOf(MULTIPLE_COMPONENT_DELIMITER) !== -1) {
-    componentName = utils.split(componentName, MULTIPLE_COMPONENT_DELIMITER)[0];
-  }
-  if (!COMPONENTS[componentName]) { return false; }
-  return true;
-}
-
-function getRotation (entityEl) {
-  var radToDeg = THREE.Math.radToDeg;
-  var rotation = entityEl.object3D.rotation;
-  var rotationObj = entityEl.rotationObj;
-  rotationObj.x = radToDeg(rotation.x);
-  rotationObj.y = radToDeg(rotation.y);
-  rotationObj.z = radToDeg(rotation.z);
-  return rotationObj;
-}
-
-AEntity = registerElement('a-entity', {prototype: proto});
-module.exports = AEntity;
-
-},{"../lib/three":173,"../utils/":195,"./a-node":123,"./a-register-element":124,"./component":125}],122:[function(_dereq_,module,exports){
-var ANode = _dereq_('./a-node');
-var registerElement = _dereq_('./a-register-element').registerElement;
-var components = _dereq_('./component').components;
-var utils = _dereq_('../utils');
-
-var MULTIPLE_COMPONENT_DELIMITER = '__';
-
-/**
- * @member {object} componentCache - Cache of pre-parsed values. An object where the keys
- *         are component names and the values are already parsed by the component.
- */
-module.exports = registerElement('a-mixin', {
-  prototype: Object.create(ANode.prototype, {
-    createdCallback: {
-      value: function () {
-        this.componentCache = {};
-        this.id = this.getAttribute('id');
-        this.isMixin = true;
-      }
-    },
-
-    attributeChangedCallback: {
-      value: function (attr, oldVal, newVal) {
-        this.cacheAttribute(attr, newVal);
-      }
-    },
-
-    attachedCallback: {
-      value: function () {
-        this.sceneEl = this.closestScene();
-        this.cacheAttributes();
-        this.updateEntities();
-        this.load();
-      }
-    },
-
-    /**
-     * setAttribute that parses and caches component values.
-     */
-    setAttribute: {
-      value: function (attr, value) {
-        window.HTMLElement.prototype.setAttribute.call(this, attr, value);
-        this.cacheAttribute(attr, value);
-      }
-    },
-
-    /**
-     * If `attr` is a component, then parse the value using the schema and store it.
-     */
-    cacheAttribute: {
-      value: function (attr, value) {
-        var component;
-        var componentName;
-
-        // Get component data.
-        componentName = utils.split(attr, MULTIPLE_COMPONENT_DELIMITER)[0];
-        component = components[componentName];
-        if (!component) { return; }
-        if (value === undefined) {
-          value = window.HTMLElement.prototype.getAttribute.call(this, attr);
-        }
-        this.componentCache[attr] = component.parseAttrValueForCache(value);
-      }
-    },
-
-    /**
-     * If `attr` is a component, then grab pre-parsed value from the cache.
-     * Else do a normal getAttribute.
-     */
-    getAttribute: {
-      value: function (attr) {
-        return this.componentCache[attr] ||
-               window.HTMLElement.prototype.getAttribute.call(this, attr);
-      }
-    },
-
-    /**
-     * Parse and cache every component defined on the mixin.
-     */
-    cacheAttributes: {
-      value: function () {
-        var attributes = this.attributes;
-        var attrName;
-        var i;
-        for (i = 0; i < attributes.length; i++) {
-          attrName = attributes[i].name;
-          this.cacheAttribute(attrName);
-        }
-      }
-    },
-
-    /**
-     * For entities that already have been loaded by the time the mixin was attached, tell
-     * those entities to register the mixin and refresh their component data.
-     */
-    updateEntities: {
-      value: function () {
-        var entity;
-        var entities;
-        var i;
-
-        if (!this.sceneEl) { return; }
-
-        entities = this.sceneEl.querySelectorAll('[mixin~=' + this.id + ']');
-        for (i = 0; i < entities.length; i++) {
-          entity = entities[i];
-          if (!entity.hasLoaded || entity.isMixin) { continue; }
-          entity.mixinUpdate(this.id);
-        }
-      }
-    }
-  })
-});
-
-},{"../utils":195,"./a-node":123,"./a-register-element":124,"./component":125}],123:[function(_dereq_,module,exports){
-/* global CustomEvent, MutationObserver */
-var registerElement = _dereq_('./a-register-element').registerElement;
-var isNode = _dereq_('./a-register-element').isNode;
-var utils = _dereq_('../utils/');
-
-var warn = utils.debug('core:a-node:warn');
-
-var MIXIN_OBSERVER_CONFIG = {attributes: true};
-
-/**
- * Base class for A-Frame that manages loading of objects.
- *
- * Nodes can be modified using mixins.
- * Nodes emit a `loaded` event when they and their children have initialized.
- */
-module.exports = registerElement('a-node', {
-  prototype: Object.create(window.HTMLElement.prototype, {
-    createdCallback: {
-      value: function () {
-        this.computedMixinStr = '';
-        this.hasLoaded = false;
-        this.isNode = true;
-        this.mixinEls = [];
-        this.mixinObservers = {};
-      },
-      writable: window.debug
-    },
-
-    attachedCallback: {
-      value: function () {
-        var mixins;
-        this.sceneEl = this.closestScene();
-
-        if (!this.sceneEl) {
-          warn('You are attempting to attach <' + this.tagName + '> outside of an A-Frame ' +
-               'scene. Append this element to `<a-scene>` instead.');
-        }
-
-        this.hasLoaded = false;
-        this.emit('nodeready', undefined, false);
-
-        if (!this.isMixin) {
-          mixins = this.getAttribute('mixin');
-          if (mixins) { this.updateMixins(mixins); }
-        }
-      },
-      writable: window.debug
-    },
-
-    /**
-     * Handle mixin.
-     */
-    attributeChangedCallback: {
-      value: function (attr, oldVal, newVal) {
-        // Ignore if `<a-node>` code is just updating computed mixin in the DOM.
-        if (newVal === this.computedMixinStr) { return; }
-
-        if (attr === 'mixin' && !this.isMixin) {
-          this.updateMixins(newVal, oldVal);
-        }
-      }
-    },
-
-   /**
-    * Returns the first scene by traversing up the tree starting from and
-    * including receiver element.
-    */
-    closestScene: {
-      value: function closest () {
-        var element = this;
-        while (element) {
-          if (element.isScene) { break; }
-          element = element.parentElement;
-        }
-        return element;
-      }
-    },
-
-    /**
-     * Returns first element matching a selector by traversing up the tree starting
-     * from and including receiver element.
-     *
-     * @param {string} selector - Selector of element to find.
-     */
-    closest: {
-      value: function closest (selector) {
-        var matches = this.matches || this.mozMatchesSelector ||
-          this.msMatchesSelector || this.oMatchesSelector || this.webkitMatchesSelector;
-        var element = this;
-        while (element) {
-          if (matches.call(element, selector)) { break; }
-          element = element.parentElement;
-        }
-        return element;
-      }
-    },
-
-    detachedCallback: {
-      value: function () {
-        this.hasLoaded = false;
-      }
-    },
-
-    /**
-     * Wait for children to load, if any.
-     * Then emit `loaded` event and set `hasLoaded`.
-     */
-    load: {
-      value: function (cb, childFilter) {
-        var children;
-        var childrenLoaded;
-        var self = this;
-
-        if (this.hasLoaded) { return; }
-
-        // Default to waiting for all nodes.
-        childFilter = childFilter || isNode;
-        // Wait for children to load (if any), then load.
-        children = this.getChildren();
-        childrenLoaded = children.filter(childFilter).map(function (child) {
-          return new Promise(function waitForLoaded (resolve) {
-            if (child.hasLoaded) { return resolve(); }
-            child.addEventListener('loaded', resolve);
-          });
-        });
-
-        Promise.all(childrenLoaded).then(function emitLoaded () {
-          self.hasLoaded = true;
-          if (cb) { cb(); }
-          self.emit('loaded', undefined, false);
-        });
-      },
-      writable: true
-    },
-
-    getChildren: {
-      value: function () {
-        return Array.prototype.slice.call(this.children, 0);
-      }
-    },
-
-    /**
-     * Unregister old mixins and listeners.
-     * Register new mixins and listeners.
-     * Registering means to update `this.mixinEls` with listeners.
-     */
-    updateMixins: {
-      value: (function () {
-        var newMixinIdArray = [];
-        var oldMixinIdArray = [];
-
-        return function (newMixins, oldMixins) {
-          var i;
-          var newMixinIds;
-          var oldMixinIds;
-
-          newMixinIdArray.length = 0;
-          oldMixinIdArray.length = 0;
-          newMixinIds = newMixins ? utils.split(newMixins.trim(), /\s+/) : newMixinIdArray;
-          oldMixinIds = oldMixins ? utils.split(oldMixins.trim(), /\s+/) : oldMixinIdArray;
-
-          // Unregister old mixins.
-          for (i = 0; i < oldMixinIds.length; i++) {
-            if (newMixinIds.indexOf(oldMixinIds[i]) === -1) {
-              this.unregisterMixin(oldMixinIds[i]);
-            }
-          }
-
-          // Register new mixins.
-          this.computedMixinStr = '';
-          this.mixinEls.length = 0;
-          for (i = 0; i < newMixinIds.length; i++) {
-            this.registerMixin(document.getElementById(newMixinIds[i]));
-          }
-
-          // Update DOM. Keep track of `computedMixinStr` to not recurse back here after
-          // update.
-          if (this.computedMixinStr) {
-            this.computedMixinStr = this.computedMixinStr.trim();
-            window.HTMLElement.prototype.setAttribute.call(this, 'mixin',
-                                                           this.computedMixinStr);
-          }
-        };
-      })()
-    },
-
-    /**
-     * From mixin ID, add mixin element to `mixinEls`.
-     *
-     * @param {Element} mixinEl
-     */
-    registerMixin: {
-      value: function (mixinEl) {
-        var compositedMixinIds;
-        var i;
-        var mixin;
-
-        if (!mixinEl) { return; }
-
-        // Register composited mixins (if mixin has mixins).
-        mixin = mixinEl.getAttribute('mixin');
-        if (mixin) {
-          compositedMixinIds = utils.split(mixin.trim(), /\s+/);
-          for (i = 0; i < compositedMixinIds.length; i++) {
-            this.registerMixin(document.getElementById(compositedMixinIds[i]));
-          }
-        }
-
-        // Register mixin.
-        this.computedMixinStr = this.computedMixinStr + ' ' + mixinEl.id;
-        this.mixinEls.push(mixinEl);
-        this.attachMixinListener(mixinEl);
-      }
-    },
-
-    setAttribute: {
-      value: function (attr, newValue) {
-        if (attr === 'mixin') { this.updateMixins(newValue); }
-        window.HTMLElement.prototype.setAttribute.call(this, attr, newValue);
-      }
-    },
-
-    unregisterMixin: {
-      value: function (mixinId) {
-        var i;
-        var mixinEls = this.mixinEls;
-        var mixinEl;
-        for (i = 0; i < mixinEls.length; ++i) {
-          mixinEl = mixinEls[i];
-          if (mixinId === mixinEl.id) {
-            mixinEls.splice(i, 1);
-            break;
-          }
-        }
-        this.removeMixinListener(mixinId);
-      }
-    },
-
-    removeMixinListener: {
-      value: function (mixinId) {
-        var observer = this.mixinObservers[mixinId];
-        if (!observer) { return; }
-        observer.disconnect();
-        this.mixinObservers[mixinId] = null;
-      }
-    },
-
-    /**
-     * Add mutation observer from entity to mixin.
-     */
-    attachMixinListener: {
-      value: function (mixinEl) {
-        var currentObserver;
-        var mixinId;
-        var observer;
-        var self = this;
-
-        if (!mixinEl) { return; }
-
-        mixinId = mixinEl.id;
-        currentObserver = this.mixinObservers[mixinId];
-        if (currentObserver) { return; }
-
-        // Add observer.
-        observer = new MutationObserver(function (mutations) {
-          self.handleMixinUpdate(mutations[0].attributeName);
-        });
-        observer.observe(mixinEl, MIXIN_OBSERVER_CONFIG);
-        this.mixinObservers[mixinId] = observer;
-      }
-    },
-
-    handleMixinUpdate: {
-      value: function () { /* no-op */ }
-    },
-
-    /**
-     * Emit a DOM event.
-     *
-     * @param {string} name - Name of event.
-     * @param {object} [detail={}] - Custom data to pass as `detail` to the event.
-     * @param {boolean} [bubbles=true] - Whether the event should bubble.
-     * @param {object} [extraData] - Extra data to pass to the event, if any.
-     */
-    emit: {
-      value: (function () {
-        var data = {};
-
-        return function (name, detail, bubbles, extraData) {
-          if (bubbles === undefined) { bubbles = true; }
-          data.bubbles = !!bubbles;
-          data.detail = detail;
-
-          // If extra data is present, we need to create a new object.
-          if (extraData) { data = utils.extend({}, extraData, data); }
-
-          this.dispatchEvent(new CustomEvent(name, data));
-        };
-      })(),
-      writable: window.debug
-    }
-  })
-});
-
-},{"../utils/":195,"./a-register-element":124}],124:[function(_dereq_,module,exports){
-/*
-  ------------------------------------------------------------
-  ------------- WARNING WARNING WARNING WARNING --------------
-  ------------------------------------------------------------
-
-  This module wraps registerElement to deal with components that inherit from
-  `ANode` and `AEntity`.  It's a pass through in any other case.
-
-  It wraps some of the prototype methods of the created element to make sure
-  that the corresponding functions in the base prototypes (`AEntity` and `ANode`)
-  are also invoked. The method in the base prototype is always called before the one
-  in the derived prototype.
-*/
-
-// Polyfill `document.registerElement`.
-_dereq_('document-register-element');
-
-var ANode;  // Must declare before AEntity. Initialized at the bottom.
-var AEntity;
-var knownTags = module.exports.knownTags = {};
-
-function addTagName (tagName) {
-  knownTags[tagName.toLowerCase()] = true;
-}
-
-/**
- * Return whether the element type is one of our known registered ones.
- *
- * @param {string} node - The name of the tag to register.
- * @returns {boolean} Whether the tag name matches that of our registered custom elements.
- */
-module.exports.isNode = function (node) {
-  return node.tagName.toLowerCase() in knownTags || node.isNode;
-};
-
-/**
- * @param {string} tagName - The name of the tag to register.
- * @param {object} obj - The prototype of the new element.
- * @returns {object} The prototype of the new element.
- */
-module.exports.registerElement = function (tagName, obj) {
-  var proto = Object.getPrototypeOf(obj.prototype);
-  var newObj = obj;
-  var isANode = ANode && proto === ANode.prototype;
-  var isAEntity = AEntity && proto === AEntity.prototype;
-
-  if (isANode || isAEntity) { addTagName(tagName); }
-
-  // Wrap if element inherits from `ANode`.
-  if (isANode) {
-    newObj = wrapANodeMethods(obj.prototype);
-    newObj = {prototype: Object.create(proto, newObj)};
-  }
-
-  // Wrap if element inherits from `AEntity`.
-  if (isAEntity) {
-    newObj = wrapAEntityMethods(obj.prototype);
-    newObj = {prototype: Object.create(proto, newObj)};
-  }
-
-  // Give all functions their proper name.
-  for (var propName of Object.getOwnPropertyNames(newObj.prototype)) {
-    var propVal = newObj.prototype[propName];
-    if (typeof propVal === 'function') {
-      propVal.displayName = propName;
-    }
-  }
-
-  return document.registerElement(tagName, newObj);
-};
-
-/**
- * Wrap some obj methods to call those on `ANode` base prototype.
- *
- * @param {object} obj - Object that contains the methods that will be wrapped.
- * @return {object} An object with the same properties as the input parameter but
- * with some of methods wrapped.
- */
-function wrapANodeMethods (obj) {
-  var newObj = {};
-  var ANodeMethods = [
-    'attachedCallback',
-    'attributeChangedCallback',
-    'createdCallback'
-  ];
-  wrapMethods(newObj, ANodeMethods, obj, ANode.prototype);
-  copyProperties(obj, newObj);
-  return newObj;
-}
-
-/**
- * This wraps some of the obj methods to call those on `AEntity` base prototype.
- *
- * @param {object} obj - The objects that contains the methods that will be wrapped.
- * @return {object} - An object with the same properties as the input parameter but
- * with some of methods wrapped.
- */
-function wrapAEntityMethods (obj) {
-  var newObj = {};
-  var ANodeMethods = [
-    'attachedCallback',
-    'attributeChangedCallback',
-    'createdCallback'
-  ];
-  var AEntityMethods = [
-    'attachedCallback',
-    'attributeChangedCallback',
-    'createdCallback',
-    'detachedCallback'
-  ];
-
-  wrapMethods(newObj, ANodeMethods, obj, ANode.prototype);
-  wrapMethods(newObj, AEntityMethods, obj, AEntity.prototype);
-  // Copies the remaining properties into the new object.
-  copyProperties(obj, newObj);
-  return newObj;
-}
-
-/**
- * Wrap a list a methods to ensure that those in the base prototype are called
- * before the derived one.
- *
- * @param {object} targetObj - Object that will contain the wrapped methods.
- * @param {array} methodList - List of methods from the derivedObj that will be wrapped.
- * @param {object} derivedObject - Object that inherits from the baseObj.
- * @param {object} baseObj - Object that derivedObj inherits from.
- */
-function wrapMethods (targetObj, methodList, derivedObj, baseObj) {
-  methodList.forEach(function (methodName) {
-    wrapMethod(targetObj, methodName, derivedObj, baseObj);
-  });
-}
-module.exports.wrapMethods = wrapMethods;
-
-/**
- * Wrap one method to ensure that the one in the base prototype is called before
- * the one in the derived one.
- *
- * @param {object} obj - Object that will contain the wrapped method.
- * @param {string} methodName - The name of the method that will be wrapped.
- * @param {object} derivedObject - Object that inherits from the baseObj.
- * @param {object} baseObj - Object that derivedObj inherits from.
- */
-function wrapMethod (obj, methodName, derivedObj, baseObj) {
-  var derivedMethod = derivedObj[methodName];
-  var baseMethod = baseObj[methodName];
-
-  // Derived prototype does not define method, no need to wrap.
-  if (!derivedMethod || !baseMethod) { return; }
-
-  // Derived prototype doesn't override the one in the base one, no need to wrap.
-  if (derivedMethod === baseMethod) { return; }
-
-  // Wrap to ensure the base method is called before the one in the derived prototype.
-  obj[methodName] = {
-    value: function wrappedMethod () {
-      baseMethod.apply(this, arguments);
-      return derivedMethod.apply(this, arguments);
-    },
-    writable: window.debug
-  };
-}
-
-/**
- * It copies the properties from source to destination object if they don't
- * exist already.
- *
- * @param {object} source - The object where properties are copied from.
- * @param {type} destination - The object where properties are copied to.
- */
-function copyProperties (source, destination) {
-  var props = Object.getOwnPropertyNames(source);
-  props.forEach(function (prop) {
-    var desc;
-    if (!destination[prop]) {
-      desc = Object.getOwnPropertyDescriptor(source, prop);
-      destination[prop] = {value: source[prop], writable: desc.writable};
-    }
-  });
-}
-
-ANode = _dereq_('./a-node');
-AEntity = _dereq_('./a-entity');
-
-},{"./a-entity":121,"./a-node":123,"document-register-element":13}],125:[function(_dereq_,module,exports){
-/* global Node */
-var schema = _dereq_('./schema');
-var scenes = _dereq_('./scene/scenes');
-var systems = _dereq_('./system');
-var utils = _dereq_('../utils/');
-
-var components = module.exports.components = {};  // Keep track of registered components.
-var parseProperties = schema.parseProperties;
-var parseProperty = schema.parseProperty;
-var processSchema = schema.process;
-var isSingleProp = schema.isSingleProperty;
-var stringifyProperties = schema.stringifyProperties;
-var stringifyProperty = schema.stringifyProperty;
-var styleParser = utils.styleParser;
-var warn = utils.debug('core:component:warn');
-
-var aframeScript = document.currentScript;
-var upperCaseRegExp = new RegExp('[A-Z]+');
-
-/**
- * Component class definition.
- *
- * Components configure appearance, modify behavior, or add functionality to
- * entities. The behavior and appearance of an entity can be changed at runtime
- * by adding, removing, or updating components. Entities do not share instances
- * of components.
- *
- * @member {object} el - Reference to the entity element.
- * @member {string} attrValue - Value of the corresponding HTML attribute.
- * @member {object} data - Component data populated by parsing the
- *         mapped attribute of the component plus applying defaults and mixins.
- */
-var Component = module.exports.Component = function (el, attrValue, id) {
-  var self = this;
-  this.el = el;
-  this.id = id;
-  this.attrName = this.name + (id ? '__' + id : '');
-  this.evtDetail = {id: this.id, name: this.name};
-  this.initialized = false;
-  this.el.components[this.attrName] = this;
-
-  // Store component data from previous update call.
-  this.oldData = undefined;
-
-  // Last value passed to updateProperties.
-  this.previousAttrValue = undefined;
-  this.throttledEmitComponentChanged = utils.throttle(function emitChange () {
-    el.emit('componentchanged', self.evtDetail, false);
-  }, 200);
-  this.updateProperties(attrValue);
-};
-
-Component.prototype = {
-  /**
-   * Contains the type schema and defaults for the data values.
-   * Data is coerced into the types of the values of the defaults.
-   */
-  schema: {},
-
-  /**
-   * Init handler. Similar to attachedCallback.
-   * Called during component initialization and is only run once.
-   * Components can use this to set initial state.
-   */
-  init: function () { /* no-op */ },
-
-  /**
-   * Update handler. Similar to attributeChangedCallback.
-   * Called whenever component's data changes.
-   * Also called on component initialization when the component receives initial data.
-   *
-   * @param {object} prevData - Previous attributes of the component.
-   */
-  update: function (prevData) { /* no-op */ },
-
-  updateSchema: undefined,
-
-  /**
-   * Tick handler.
-   * Called on each tick of the scene render loop.
-   * Affected by play and pause.
-   *
-   * @param {number} time - Scene tick time.
-   * @param {number} timeDelta - Difference in current render time and previous render time.
-   */
-  tick: undefined,
-
-  /**
-   * Tock handler.
-   * Called on each tock of the scene render loop.
-   * Affected by play and pause.
-   *
-   * @param {number} time - Scene tick time.
-   * @param {number} timeDelta - Difference in current render time and previous render time.
-   */
-  tock: undefined,
-
-  /**
-   * Called to start any dynamic behavior (e.g., animation, AI, events, physics).
-   */
-  play: function () { /* no-op */ },
-
-  /**
-   * Called to stop any dynamic behavior (e.g., animation, AI, events, physics).
-   */
-  pause: function () { /* no-op */ },
-
-  /**
-   * Remove handler. Similar to detachedCallback.
-   * Called whenever component is removed from the entity (i.e., removeAttribute).
-   * Components can use this to reset behavior on the entity.
-   */
-  remove: function () { /* no-op */ },
-
-  /**
-   * Parses each property based on property type.
-   * If component is single-property, then parses the single property value.
-   *
-   * @param {string} value - HTML attribute value.
-   * @param {boolean} silent - Suppress warning messages.
-   * @returns {object} Component data.
-   */
-  parse: function (value, silent) {
-    var schema = this.schema;
-    if (isSingleProp(schema)) { return parseProperty(value, schema); }
-    return parseProperties(styleParser.parse(value), schema, true, this.name, silent);
-  },
-
-  /**
-   * Stringify properties if necessary.
-   *
-   * Only called from `Entity.setAttribute` for properties whose parsers accept a non-string
-   * value (e.g., selector, vec3 property types).
-   *
-   * @param {object} data - Complete component data.
-   * @returns {string}
-   */
-  stringify: function (data) {
-    var schema = this.schema;
-    if (typeof data === 'string') { return data; }
-    if (isSingleProp(schema)) { return stringifyProperty(data, schema); }
-    data = stringifyProperties(data, schema);
-    return styleParser.stringify(data);
-  },
-
-  /**
-   * Update the cache of the pre-parsed attribute value.
-   *
-   * @param {string} value - New data.
-   * @param {boolean } clobber - Whether to wipe out and replace previous data.
-   */
-  updateCachedAttrValue: function (value, clobber) {
-    var attrValue = this.parseAttrValueForCache(value);
-    var isSinglePropSchema = isSingleProp(this.schema);
-    var property;
-    if (value === undefined) { return; }
-
-    // Merge new data with previous `attrValue` if updating and not clobbering.
-    if (!isSinglePropSchema && !clobber) {
-      this.attrValue = this.attrValue ? cloneData(this.attrValue) : {};
-      for (property in attrValue) {
-        this.attrValue[property] = attrValue[property];
-      }
-      return;
-    }
-
-    // If single-prop schema or clobber.
-    this.attrValue = attrValue;
-  },
-
-  /**
-   * Given an HTML attribute value parses the string
-   * based on the component schema. To avoid double parsings of
-   * strings into strings we store the original instead
-   * of the parsed one
-   *
-   * @param {string} value - HTML attribute value
-   */
-  parseAttrValueForCache: function (value) {
-    var parsedValue;
-    if (typeof value !== 'string') { return value; }
-    if (isSingleProp(this.schema)) {
-      parsedValue = this.schema.parse(value);
-      /**
-       * To avoid bogus double parsings. Cached values will be parsed when building
-       * component data. For instance when parsing a src id to its url, we want to cache
-       * original string and not the parsed one (#monster -> models/monster.dae)
-       * so when building data we parse the expected value.
-       */
-      if (typeof parsedValue === 'string') { parsedValue = value; }
-    } else {
-      // Parse using the style parser to avoid double parsing of individual properties.
-      parsedValue = styleParser.parse(value);
-    }
-    return parsedValue;
-  },
-
-  /**
-   * Write cached attribute data to the entity DOM element.
-   *
-   * @param {boolean} isDefault - Whether component is a default component. Always flush for
-   *   default components.
-   */
-  flushToDOM: function (isDefault) {
-    var attrValue = isDefault ? this.data : this.attrValue;
-    if (!attrValue) { return; }
-    window.HTMLElement.prototype.setAttribute.call(this.el, this.attrName,
-                                            this.stringify(attrValue));
-  },
-
-  /**
-   * Apply new component data if data has changed.
-   *
-   * @param {string} attrValue - HTML attribute value.
-   *        If undefined, use the cached attribute value and continue updating properties.
-   * @param {boolean} clobber - The previous component data is overwritten by the atrrValue
-   */
-  updateProperties: function (attrValue, clobber) {
-    var el = this.el;
-    var isSinglePropSchema;
-    var key;
-    var skipTypeChecking;
-    var oldData = this.oldData;
-
-    // Just cache the attribute if the entity has not loaded
-    // Components are not initialized until the entity has loaded
-    if (!el.hasLoaded) {
-      this.updateCachedAttrValue(attrValue);
-      return;
-    }
-
-    isSinglePropSchema = isSingleProp(this.schema);
-
-    // Disable type checking if the passed attribute is an object and has not changed.
-    skipTypeChecking = attrValue !== null && typeof this.previousAttrValue === 'object' &&
-                       attrValue === this.previousAttrValue;
-    if (skipTypeChecking) {
-      for (key in this.attrValue) {
-        if (!(key in attrValue)) {
-          skipTypeChecking = false;
-          break;
-        }
-      }
-      for (key in attrValue) {
-        if (!(key in this.attrValue)) {
-          skipTypeChecking = false;
-          break;
-        }
-      }
-    }
-
-    // Cache previously passed attribute to decide if we skip type checking.
-    this.previousAttrValue = attrValue;
-
-    // Cache current attrValue for future updates. Updates `this.attrValue`.
-    attrValue = this.parseAttrValueForCache(attrValue);
-    this.updateCachedAttrValue(attrValue, clobber);
-
-    if (this.updateSchema) {
-      this.updateSchema(this.buildData(this.attrValue, false, true));
-    }
-    this.data = this.buildData(this.attrValue, clobber, false, skipTypeChecking);
-
-    if (!this.initialized) {
-      // Component is being already initialized.
-      if (el.initializingComponents[this.name]) { return; }
-      // Prevent infinite loop in case of init method setting same component on the entity.
-      el.initializingComponents[this.name] = true;
-      // Initialize component.
-      this.init();
-      this.initialized = true;
-      delete el.initializingComponents[this.name];
-      // For oldData, pass empty object to multiple-prop schemas or object single-prop schema.
-      // Pass undefined to rest of types.
-      oldData = (!isSinglePropSchema ||
-                 typeof parseProperty(undefined, this.schema) === 'object') ? {} : undefined;
-      // Store current data as previous data for future updates.
-      this.oldData = extendProperties({}, this.data, isSinglePropSchema);
-      this.update(oldData);
-      // Play the component if the entity is playing.
-      if (el.isPlaying) { this.play(); }
-      el.emit('componentinitialized', this.evtDetail, false);
-    } else {
-      // Don't update if properties haven't changed
-      if (utils.deepEqual(this.oldData, this.data)) { return; }
-     // Store current data as previous data for future updates.
-      this.oldData = extendProperties({}, this.data, isSinglePropSchema);
-      // Update component.
-      this.update(oldData);
-      this.throttledEmitComponentChanged();
-    }
-  },
-
-  /**
-   * Reset value of a property to the property's default value.
-   * If single-prop component, reset value to component's default value.
-   *
-   * @param {string} propertyName - Name of property to reset.
-   */
-  resetProperty: function (propertyName) {
-    if (isSingleProp(this.schema)) {
-      this.attrValue = undefined;
-    } else {
-      if (!(propertyName in this.attrValue)) { return; }
-      delete this.attrValue[propertyName];
-    }
-    this.updateProperties(this.attrValue);
-  },
-
-  /**
-   * Extend schema of component given a partial schema.
-   *
-   * Some components might want to mutate their schema based on certain properties.
-   * e.g., Material component changes its schema based on `shader` to account for different
-   * uniforms
-   *
-   * @param {object} schemaAddon - Schema chunk that extend base schema.
-   */
-  extendSchema: function (schemaAddon) {
-    // Clone base schema.
-    var extendedSchema = utils.extend({}, components[this.name].schema);
-    // Extend base schema with new schema chunk.
-    utils.extend(extendedSchema, schemaAddon);
-    this.schema = processSchema(extendedSchema);
-    this.el.emit('schemachanged', {component: this.name});
-  },
-
-  /**
-   * Builds component data from the current state of the entity, ultimately
-   * updating this.data.
-   *
-   * If the component was detached completely, set data to null.
-   *
-   * Precedence:
-   * 1. Defaults data
-   * 2. Mixin data.
-   * 3. Attribute data.
-   *
-   * Finally coerce the data to the types of the defaults.
-   *
-   * @param {object} newData - Element new data.
-   * @param {boolean} clobber - The previous data is completely replaced by the new one.
-   * @param {boolean} silent - Suppress warning messages.
-   * @param {boolean} skipTypeChecking - Skip type checking and cohercion.
-   * @return {object} The component data
-   */
-  buildData: function (newData, clobber, silent, skipTypeChecking) {
-    var componentDefined;
-    var data;
-    var defaultValue;
-    var keys;
-    var keysLength;
-    var mixinData;
-    var schema = this.schema;
-    var i;
-    var isSinglePropSchema = isSingleProp(schema);
-    var mixinEls = this.el.mixinEls;
-    var previousData;
-
-    // Whether component has a defined value. For arrays, treat empty as not defined.
-    componentDefined = newData && newData.constructor === Array
-      ? newData.length
-      : newData !== undefined && newData !== null;
-
-    // 1. Default values (lowest precendence).
-    if (isSinglePropSchema) {
-      // Clone default value if plain object so components don't share the same object
-      // that might be modified by the user.
-      data = isObjectOrArray(schema.default) ? utils.clone(schema.default) : schema.default;
-    } else {
-      // Preserve previously set properties if clobber not enabled.
-      previousData = !clobber && this.attrValue;
-      // Clone previous data to prevent sharing references with attrValue that might be
-      // modified by the user.
-      data = typeof previousData === 'object' ? cloneData(previousData) : {};
-
-      // Apply defaults.
-      for (i = 0, keys = Object.keys(schema), keysLength = keys.length; i < keysLength; i++) {
-        defaultValue = schema[keys[i]].default;
-        if (data[keys[i]] !== undefined) { continue; }
-        // Clone default value if object so components don't share object
-        data[keys[i]] = isObjectOrArray(defaultValue) ? utils.clone(defaultValue) : defaultValue;
-      }
-    }
-
-    // 2. Mixin values.
-    for (i = 0; i < mixinEls.length; i++) {
-      mixinData = mixinEls[i].getAttribute(this.attrName);
-      if (mixinData) {
-        data = extendProperties(data, mixinData, isSinglePropSchema);
-      }
-    }
-
-    // 3. Attribute values (highest precendence).
-    if (componentDefined) {
-      if (isSinglePropSchema) {
-        if (skipTypeChecking === true) { return newData; }
-        return parseProperty(newData, schema);
-      }
-      data = extendProperties(data, newData, isSinglePropSchema);
-    } else {
-      if (skipTypeChecking === true) { return data; }
-      // Parse and coerce using the schema.
-      if (isSinglePropSchema) { return parseProperty(data, schema); }
-    }
-
-    if (skipTypeChecking === true) { return data; }
-    return parseProperties(data, schema, undefined, this.name, silent);
-  }
-};
-
-// For testing.
-if (window.debug) {
-  var registrationOrderWarnings = module.exports.registrationOrderWarnings = {};
-}
-
-/**
- * Registers a component to A-Frame.
- *
- * @param {string} name - Component name.
- * @param {object} definition - Component schema and lifecycle method handlers.
- * @returns {object} Component.
- */
-module.exports.registerComponent = function (name, definition) {
-  var NewComponent;
-  var proto = {};
-
-  // Warning if component is statically registered after the scene.
-  if (document.currentScript && document.currentScript !== aframeScript) {
-    scenes.forEach(function checkPosition (sceneEl) {
-      // Okay to register component after the scene at runtime.
-      if (sceneEl.hasLoaded) { return; }
-
-      // Check that component is declared before the scene.
-      if (document.currentScript.compareDocumentPosition(sceneEl) ===
-          Node.DOCUMENT_POSITION_FOLLOWING) { return; }
-
-      warn('The component `' + name + '` was registered in a <script> tag after the scene. ' +
-           'Component <script> tags in an HTML file should be declared *before* the scene ' +
-           'such that the component is available to entities during scene initialization.');
-
-      // For testing.
-      if (window.debug) { registrationOrderWarnings[name] = true; }
-    });
-  }
-
-  if (upperCaseRegExp.test(name) === true) {
-    warn('The component name `' + name + '` contains uppercase characters, but ' +
-         'HTML will ignore the capitalization of attribute names. ' +
-         'Change the name to be lowercase: `' + name.toLowerCase() + '`');
-  }
-
-  if (name.indexOf('__') !== -1) {
-    throw new Error('The component name `' + name + '` is not allowed. ' +
-                    'The sequence __ (double underscore) is reserved to specify an id' +
-                    ' for multiple components of the same type');
-  }
-
-  // Format definition object to prototype object.
-  Object.keys(definition).forEach(function (key) {
-    proto[key] = {
-      value: definition[key],
-      writable: true
-    };
-  });
-
-  if (components[name]) {
-    throw new Error('The component `' + name + '` has been already registered. ' +
-                    'Check that you are not loading two versions of the same component ' +
-                    'or two different components of the same name.');
-  }
-  NewComponent = function (el, attr, id) {
-    Component.call(this, el, attr, id);
-  };
-
-  NewComponent.prototype = Object.create(Component.prototype, proto);
-  NewComponent.prototype.name = name;
-  NewComponent.prototype.constructor = NewComponent;
-  NewComponent.prototype.system = systems && systems.systems[name];
-  NewComponent.prototype.play = wrapPlay(NewComponent.prototype.play);
-  NewComponent.prototype.pause = wrapPause(NewComponent.prototype.pause);
-
-  components[name] = {
-    Component: NewComponent,
-    dependencies: NewComponent.prototype.dependencies,
-    isSingleProp: isSingleProp(NewComponent.prototype.schema),
-    multiple: NewComponent.prototype.multiple,
-    parse: NewComponent.prototype.parse,
-    parseAttrValueForCache: NewComponent.prototype.parseAttrValueForCache,
-    schema: utils.extend(processSchema(NewComponent.prototype.schema, NewComponent.prototype.name)),
-    stringify: NewComponent.prototype.stringify,
-    type: NewComponent.prototype.type
-  };
-  return NewComponent;
-};
-
-/**
-* Clone component data.
-* Clone only the properties that are plain objects while keeping a reference for the rest.
-*
-* @param data - Component data to clone.
-* @returns Cloned data.
-*/
-function cloneData (data) {
-  var clone = {};
-  var parsedProperty;
-  var key;
-  for (key in data) {
-    parsedProperty = data[key];
-    clone[key] = isObjectOrArray(parsedProperty) ? utils.clone(parsedProperty) : parsedProperty;
-  }
-  return clone;
-}
-
-/**
-* Object extending with checking for single-property schema.
-*
-* @param dest - Destination object or value.
-* @param source - Source object or value
-* @param {boolean} isSinglePropSchema - Whether or not schema is only a single property.
-* @returns Overridden object or value.
-*/
-function extendProperties (dest, source, isSinglePropSchema) {
-  if (isSinglePropSchema && (source === null || typeof source !== 'object')) { return source; }
-  return utils.extend(dest, source);
-}
-
-/**
- * Checks if a component has defined a method that needs to run every frame.
- */
-function hasBehavior (component) {
-  return component.tick || component.tock;
-}
-
-/**
- * Wrapper for user defined pause method
- * Pause component by removing tick behavior and calling user's pause method.
- *
- * @param pauseMethod {function} - user defined pause method
- */
-function wrapPause (pauseMethod) {
-  return function pause () {
-    var sceneEl = this.el.sceneEl;
-    if (!this.isPlaying) { return; }
-    pauseMethod.call(this);
-    this.isPlaying = false;
-    // Remove tick behavior.
-    if (!hasBehavior(this)) { return; }
-    sceneEl.removeBehavior(this);
-  };
-}
-
-/**
- * Wrapper for user defined play method
- * Play component by adding tick behavior and calling user's play method.
- *
- * @param playMethod {function} - user defined play method
- *
- */
-function wrapPlay (playMethod) {
-  return function play () {
-    var sceneEl = this.el.sceneEl;
-    var shouldPlay = this.el.isPlaying && !this.isPlaying;
-    if (!this.initialized || !shouldPlay) { return; }
-    playMethod.call(this);
-    this.isPlaying = true;
-    // Add tick behavior.
-    if (!hasBehavior(this)) { return; }
-    sceneEl.addBehavior(this);
-  };
-}
-
-function isObjectOrArray (value) {
-  return value && (value.constructor === Object || value.constructor === Array);
-}
-
-},{"../utils/":195,"./scene/scenes":131,"./schema":133,"./system":135}],126:[function(_dereq_,module,exports){
-var schema = _dereq_('./schema');
-
-var processSchema = schema.process;
-var geometries = module.exports.geometries = {};  // Registered geometries.
-var geometryNames = module.exports.geometryNames = [];  // Names of registered geometries.
-var THREE = _dereq_('../lib/three');
-
-/**
- * Geometry class definition.
- *
- * Geometries extend the geometry component API to create and register geometry types.
- */
-var Geometry = module.exports.Geometry = function () {};
-
-Geometry.prototype = {
-  /**
-   * Contains the type schema and defaults for the data values.
-   * Data is coerced into the types of the values of the defaults.
-   */
-  schema: {},
-
-  /**
-   * Init handler. Similar to attachedCallback.
-   * Called during shader initialization and is only run once.
-   */
-  init: function (data) {
-    this.geometry = new THREE.Geometry();
-    return this.geometry;
-  },
-
-  /**
-   * Update handler. Similar to attributeChangedCallback.
-   * Called whenever the associated geometry data changes.
-   *
-   * @param {object} data - New geometry data.
-   */
-  update: function (data) { /* no-op */ }
-};
-
-/**
- * Registers a geometry to A-Frame.
- *
- * @param {string} name - Geometry name.
- * @param {object} definition - Geometry property and methods.
- * @returns {object} Geometry.
- */
-module.exports.registerGeometry = function (name, definition) {
-  var NewGeometry;
-  var proto = {};
-
-  // Format definition object to prototype object.
-  Object.keys(definition).forEach(function expandDefinition (key) {
-    proto[key] = {
-      value: definition[key],
-      writable: true
-    };
-  });
-
-  if (geometries[name]) {
-    throw new Error('The geometry `' + name + '` has been already registered');
-  }
-  NewGeometry = function () { Geometry.call(this); };
-  NewGeometry.prototype = Object.create(Geometry.prototype, proto);
-  NewGeometry.prototype.name = name;
-  NewGeometry.prototype.constructor = NewGeometry;
-  geometries[name] = {
-    Geometry: NewGeometry,
-    schema: processSchema(NewGeometry.prototype.schema)
-  };
-  geometryNames.push(name);
-  return NewGeometry;
-};
-
-},{"../lib/three":173,"./schema":133}],127:[function(_dereq_,module,exports){
-var coordinates = _dereq_('../utils/coordinates');
-var debug = _dereq_('debug');
-
-var error = debug('core:propertyTypes:warn');
-var warn = debug('core:propertyTypes:warn');
-
-var propertyTypes = module.exports.propertyTypes = {};
-var nonCharRegex = /[,> .[\]:]/;
-
-// Built-in property types.
-registerPropertyType('audio', '', assetParse);
-registerPropertyType('array', [], arrayParse, arrayStringify);
-registerPropertyType('asset', '', assetParse);
-registerPropertyType('boolean', false, boolParse);
-registerPropertyType('color', '#FFF', defaultParse, defaultStringify);
-registerPropertyType('int', 0, intParse);
-registerPropertyType('number', 0, numberParse);
-registerPropertyType('map', '', assetParse);
-registerPropertyType('model', '', assetParse);
-registerPropertyType('selector', null, selectorParse, selectorStringify);
-registerPropertyType('selectorAll', null, selectorAllParse, selectorAllStringify);
-registerPropertyType('src', '', srcParse);
-registerPropertyType('string', '', defaultParse, defaultStringify);
-registerPropertyType('time', 0, intParse);
-registerPropertyType('vec2', {x: 0, y: 0}, vecParse, coordinates.stringify);
-registerPropertyType('vec3', {x: 0, y: 0, z: 0}, vecParse, coordinates.stringify);
-registerPropertyType('vec4', {x: 0, y: 0, z: 0, w: 0}, vecParse, coordinates.stringify);
-
-/**
- * Register a parser for re-use such that when someone uses `type` in the schema,
- * `schema.process` will set the property `parse` and `stringify`.
- *
- * @param {string} type - Type name.
- * @param [defaultValue=null] -
- *   Default value to use if component does not define default value.
- * @param {function} [parse=defaultParse] - Parse string function.
- * @param {function} [stringify=defaultStringify] - Stringify to DOM function.
- */
-function registerPropertyType (type, defaultValue, parse, stringify) {
-  if ('type' in propertyTypes) {
-    error('Property type ' + type + ' is already registered.');
-    return;
-  }
-
-  propertyTypes[type] = {
-    default: defaultValue,
-    parse: parse || defaultParse,
-    stringify: stringify || defaultStringify
-  };
-}
-module.exports.registerPropertyType = registerPropertyType;
-
-function arrayParse (value) {
-  if (Array.isArray(value)) { return value; }
-  if (!value || typeof value !== 'string') { return []; }
-  return value.split(',').map(trim);
-  function trim (str) { return str.trim(); }
-}
-
-function arrayStringify (value) {
-  return value.join(', ');
-}
-
-/**
- * For general assets.
- *
- * @param {string} value - Can either be `url(<value>)`, an ID selector to an asset, or
- *   just string.
- * @returns {string} Parsed value from `url(<value>)`, src from `<someasset src>`, or
- *   just string.
- */
-function assetParse (value) {
-  var el;
-  var parsedUrl;
-
-  // If an element was provided (e.g. canvas or video), just return it.
-  if (typeof value !== 'string') { return value; }
-
-  // Wrapped `url()` in case of data URI.
-  parsedUrl = value.match(/\url\((.+)\)/);
-  if (parsedUrl) { return parsedUrl[1]; }
-
-  // ID.
-  if (value.charAt(0) === '#') {
-    el = document.getElementById(value.substring(1));
-    if (el) {
-      // Pass through media elements. If we have the elements, we don't have to call
-      // three.js loaders which would re-request the assets.
-      if (el.tagName === 'CANVAS' || el.tagName === 'VIDEO' || el.tagName === 'IMG') {
-        return el;
-      }
-      return el.getAttribute('src');
-    }
-    warn('"' + value + '" asset not found.');
-    return;
-  }
-
-  // Non-wrapped url().
-  return value;
-}
-
-function defaultParse (value) {
-  return value;
-}
-
-function defaultStringify (value) {
-  if (value === null) { return 'null'; }
-  return value.toString();
-}
-
-function boolParse (value) {
-  return value !== 'false' && value !== false;
-}
-
-function intParse (value) {
-  return parseInt(value, 10);
-}
-
-function numberParse (value) {
-  return parseFloat(value, 10);
-}
-
-function selectorParse (value) {
-  if (!value) { return null; }
-  if (typeof value !== 'string') { return value; }
-  if (value[0] === '#' && !nonCharRegex.test(value)) {
-    // When selecting element by ID only, use getElementById for better performance.
-    // Don't match like #myId .child.
-    return document.getElementById(value.substring(1));
-  }
-  return document.querySelector(value);
-}
-
-function selectorAllParse (value) {
-  if (!value) { return null; }
-  if (typeof value !== 'string') { return value; }
-  return Array.prototype.slice.call(document.querySelectorAll(value), 0);
-}
-
-function selectorStringify (value) {
-  if (value.getAttribute) {
-    return '#' + value.getAttribute('id');
-  }
-  return defaultStringify(value);
-}
-
-function selectorAllStringify (value) {
-  if (value instanceof Array) {
-    return value.map(function (element) {
-      return '#' + element.getAttribute('id');
-    }).join(', ');
-  }
-  return defaultStringify(value);
-}
-
-function srcParse (value) {
-  warn('`src` property type is deprecated. Use `asset` instead.');
-  return assetParse(value);
-}
-
-function vecParse (value) {
-  return coordinates.parse(value, this.default);
-}
-
-/**
- * Validate the default values in a schema to match their type.
- *
- * @param {string} type - Property type name.
- * @param defaultVal - Property type default value.
- * @returns {boolean} Whether default value is accurate given the type.
- */
-function isValidDefaultValue (type, defaultVal) {
-  if (type === 'audio' && typeof defaultVal !== 'string') { return false; }
-  if (type === 'array' && !Array.isArray(defaultVal)) { return false; }
-  if (type === 'asset' && typeof defaultVal !== 'string') { return false; }
-  if (type === 'boolean' && typeof defaultVal !== 'boolean') { return false; }
-  if (type === 'color' && typeof defaultVal !== 'string') { return false; }
-  if (type === 'int' && typeof defaultVal !== 'number') { return false; }
-  if (type === 'number' && typeof defaultVal !== 'number') { return false; }
-  if (type === 'map' && typeof defaultVal !== 'string') { return false; }
-  if (type === 'model' && typeof defaultVal !== 'string') { return false; }
-  if (type === 'selector' && typeof defaultVal !== 'string' &&
-      defaultVal !== null) { return false; }
-  if (type === 'selectorAll' && typeof defaultVal !== 'string' &&
-      defaultVal !== null) { return false; }
-  if (type === 'src' && typeof defaultVal !== 'string') { return false; }
-  if (type === 'string' && typeof defaultVal !== 'string') { return false; }
-  if (type === 'time' && typeof defaultVal !== 'number') { return false; }
-  if (type === 'vec2') { return isValidDefaultCoordinate(defaultVal, 2); }
-  if (type === 'vec3') { return isValidDefaultCoordinate(defaultVal, 3); }
-  if (type === 'vec4') { return isValidDefaultCoordinate(defaultVal, 4); }
-  return true;
-}
-module.exports.isValidDefaultValue = isValidDefaultValue;
-
-/**
- * Checks if default coordinates are valid.
- *
- * @param possibleCoordinates
- * @param {number} dimensions - 2 for 2D Vector, 3 for 3D vector.
- * @returns {boolean} Whether coordinates are parsed correctly.
- */
-function isValidDefaultCoordinate (possibleCoordinates, dimensions) {
-  if (possibleCoordinates === null) { return true; }
-  if (typeof possibleCoordinates !== 'object') { return false; }
-
-  if (Object.keys(possibleCoordinates).length !== dimensions) {
-    return false;
-  } else {
-    var x = possibleCoordinates.x;
-    var y = possibleCoordinates.y;
-    var z = possibleCoordinates.z;
-    var w = possibleCoordinates.w;
-
-    if (typeof x !== 'number' || typeof y !== 'number') { return false; }
-    if (dimensions > 2 && typeof z !== 'number') { return false; }
-    if (dimensions > 3 && typeof w !== 'number') { return false; }
-  }
-
-  return true;
-}
-module.exports.isValidDefaultCoordinate = isValidDefaultCoordinate;
-
-},{"../utils/coordinates":190,"debug":10}],128:[function(_dereq_,module,exports){
-/* global Promise, screen */
-var initMetaTags = _dereq_('./metaTags').inject;
-var initWakelock = _dereq_('./wakelock');
-var re = _dereq_('../a-register-element');
-var scenes = _dereq_('./scenes');
-var systems = _dereq_('../system').systems;
-var THREE = _dereq_('../../lib/three');
-var TWEEN = _dereq_('@tweenjs/tween.js');
-var utils = _dereq_('../../utils/');
-// Require after.
-var AEntity = _dereq_('../a-entity');
-var ANode = _dereq_('../a-node');
-var initPostMessageAPI = _dereq_('./postMessage');
-
-var bind = utils.bind;
-var isIOS = utils.device.isIOS();
-var isMobile = utils.device.isMobile();
-var registerElement = re.registerElement;
-var warn = utils.debug('core:a-scene:warn');
-
-/**
- * Scene element, holds all entities.
- *
- * @member {array} behaviors - Component instances that have registered themselves to be
-           updated on every tick.
- * @member {object} camera - three.js Camera object.
- * @member {object} canvas
- * @member {bool} isScene - Differentiates as scene entity as opposed to other entites.
- * @member {bool} isMobile - Whether browser is mobile (via UA detection).
- * @member {object} object3D - Root three.js Scene object.
- * @member {object} renderer
- * @member {bool} renderStarted
- * @member {object} systems - Registered instantiated systems.
- * @member {number} time
- */
-module.exports.AScene = registerElement('a-scene', {
-  prototype: Object.create(AEntity.prototype, {
-    defaultComponents: {
-      value: {
-        'inspector': '',
-        'keyboard-shortcuts': '',
-        'screenshot': '',
-        'vr-mode-ui': ''
-      }
-    },
-
-    createdCallback: {
-      value: function () {
-        this.isIOS = isIOS;
-        this.isMobile = isMobile;
-        this.isScene = true;
-        this.object3D = new THREE.Scene();
-        this.render = bind(this.render, this);
-        this.systems = {};
-        this.systemNames = [];
-        this.time = 0;
-        this.init();
-      }
-    },
-
-    init: {
-      value: function () {
-        this.behaviors = {tick: [], tock: []};
-        this.hasLoaded = false;
-        this.isPlaying = false;
-        this.originalHTML = this.innerHTML;
-        this.renderTarget = null;
-        setupCanvas(this);
-        this.setupRenderer();
-        this.resize();
-        this.addFullScreenStyles();
-        initPostMessageAPI(this);
-      },
-      writable: true
-    },
-
-    addFullScreenStyles: {
-      value: function () {
-        var htmlEl = document.documentElement;
-        htmlEl.classList.add('a-html');
-        document.body.classList.add('a-body');
-        this.classList.add('fullscreen');
-      }
-    },
-
-    removeFullScreenStyles: {
-      value: function () {
-        var htmlEl = document.documentElement;
-        htmlEl.classList.remove('a-html');
-        document.body.classList.remove('a-body');
-        this.classList.remove('fullscreen');
-      }
-    },
-
-    attachedCallback: {
-      value: function () {
-        var resize;
-        var self = this;
-
-        initMetaTags(this);
-        initWakelock(this);
-        this.initSystems();
-
-        resize = bind(this.resize, this);
-        window.addEventListener('load', resize);
-        window.addEventListener('resize', function () {
-          // Workaround for a Webkit bug (https://bugs.webkit.org/show_bug.cgi?id=170595)
-          // where the window does not contain the correct viewport size
-          // after an orientation change. The window size is correct if the operation
-          // is postponed a few milliseconds.
-          // self.resize can be called directly once the bug above is fixed.
-          if (this.isIOS) {
-            setTimeout(resize, 100);
-          } else {
-            resize();
-          }
-        });
-        this.play();
-
-        // Add to scene index.
-        scenes.push(this);
-
-        // Handler to exit VR (e.g., Oculus Browser back button).
-        this.onVRPresentChangeBound = bind(this.onVRPresentChange, this);
-        window.addEventListener('vrdisplaypresentchange', this.onVRPresentChangeBound);
-
-        // bind functions
-        this.enterVRBound = function () { self.enterVR(); };
-        this.exitVRBound = function () { self.exitVR(); };
-        this.exitVRTrueBound = function () { self.exitVR(true); };
-        this.pointerRestrictedBound = function () { self.pointerRestricted(); };
-        this.pointerUnrestrictedBound = function () { self.pointerUnrestricted(); };
-
-        // Enter VR on `vrdisplayactivate` (e.g. putting on Rift headset).
-        window.addEventListener('vrdisplayactivate', this.enterVRBound);
-
-        // Exit VR on `vrdisplaydeactivate` (e.g. taking off Rift headset).
-        window.addEventListener('vrdisplaydeactivate', this.exitVRBound);
-
-        // Exit VR on `vrdisplaydisconnect` (e.g. unplugging Rift headset).
-        window.addEventListener('vrdisplaydisconnect', this.exitVRTrueBound);
-
-        // Register for mouse restricted events while in VR
-        // (e.g. mouse no longer available on desktop 2D view)
-        window.addEventListener('vrdisplaypointerrestricted', this.pointerRestrictedBound);
-
-        // Register for mouse unrestricted events while in VR
-        // (e.g. mouse once again available on desktop 2D view)
-        window.addEventListener('vrdisplaypointerunrestricted', this.pointerUnrestrictedBound);
-      },
-      writable: window.debug
-    },
-
-    /**
-     * Initialize all systems.
-     */
-    initSystems: {
-      value: function () {
-        Object.keys(systems).forEach(bind(this.initSystem, this));
-      }
-    },
-
-    /**
-     * Initialize a system.
-     */
-    initSystem: {
-      value: function (name) {
-        if (this.systems[name]) { return; }
-        this.systems[name] = new systems[name](this);
-        this.systemNames.push(name);
-      }
-    },
-
-    /**
-     * Shut down scene on detach.
-     */
-    detachedCallback: {
-      value: function () {
-        // Remove from scene index.
-        var sceneIndex = scenes.indexOf(this);
-        scenes.splice(sceneIndex, 1);
-
-        window.removeEventListener('vrdisplaypresentchange', this.onVRPresentChangeBound);
-        window.removeEventListener('vrdisplayactivate', this.enterVRBound);
-        window.removeEventListener('vrdisplaydeactivate', this.exitVRBound);
-        window.removeEventListener('vrdisplayconnect', this.enterVRBound);
-        window.removeEventListener('vrdisplaydisconnect', this.exitVRTrueBound);
-        window.removeEventListener('vrdisplaypointerrestricted', this.pointerRestrictedBound);
-        window.removeEventListener('vrdisplaypointerunrestricted', this.pointerUnrestrictedBound);
-      }
-    },
-
-    /**
-     * Add ticks and tocks.
-     *
-     * @param {object} behavior - A component.
-     */
-    addBehavior: {
-      value: function (behavior) {
-        var behaviorArr;
-        var behaviors = this.behaviors;
-        var behaviorType;
-
-        // Check if behavior has tick and/or tock and add the behavior to the appropriate list.
-        for (behaviorType in behaviors) {
-          if (!behavior[behaviorType]) { continue; }
-          behaviorArr = this.behaviors[behaviorType];
-          if (behaviorArr.indexOf(behavior) === -1) {
-            behaviorArr.push(behavior);
-          }
-        }
-      }
-    },
-
-    /**
-     * For tests.
-     */
-    getPointerLockElement: {
-      value: function () {
-        return document.pointerLockElement;
-      },
-      writable: window.debug
-    },
-
-    /**
-     * For tests.
-     */
-    checkHeadsetConnected: {
-      value: utils.device.checkHeadsetConnected,
-      writable: window.debug
-    },
-
-    /**
-     * Call `requestPresent` if WebVR or WebVR polyfill.
-     * Call `requestFullscreen` on desktop.
-     * Handle events, states, fullscreen styles.
-     *
-     * @param {bool} fromExternal - Whether exiting VR due to an external event (e.g.,
-     *   manually calling requestPresent via WebVR API directly).
-     * @returns {Promise}
-     */
-    enterVR: {
-      value: function (fromExternal) {
-        var self = this;
-        var vrDisplay;
-        var vrManager = self.renderer.vr;
-        // Don't enter VR if already in VR.
-        if (this.is('vr-mode')) { return Promise.resolve('Already in VR.'); }
-        // Enter VR via WebVR API.
-        if (!fromExternal && (this.checkHeadsetConnected() || this.isMobile)) {
-          vrDisplay = utils.device.getVRDisplay();
-          vrManager.setDevice(vrDisplay);
-          vrManager.enabled = true;
-          vrManager.setPoseTarget(this.camera.el.object3D);
-          return vrDisplay.requestPresent([{source: this.canvas}])
-                          .then(enterVRSuccess, enterVRFailure);
-        }
-        enterVRSuccess();
-        return Promise.resolve();
-
-        function enterVRSuccess () {
-          self.addState('vr-mode');
-          self.emit('enter-vr', {target: self});
-          // Lock to landscape orientation on mobile.
-          if (self.isMobile && screen.orientation && screen.orientation.lock) {
-            screen.orientation.lock('landscape');
-          }
-          self.addFullScreenStyles();
-
-          // On mobile, the polyfill handles fullscreen.
-          // TODO: 07/16 Chromium builds break when `requestFullscreen`ing on a canvas
-          // that we are also `requestPresent`ing. Until then, don't fullscreen if headset
-          // connected.
-          if (!self.isMobile && !self.checkHeadsetConnected()) {
-            requestFullscreen(self.canvas);
-          }
-          self.resize();
-        }
-
-        function enterVRFailure (err) {
-          if (err && err.message) {
-            throw new Error('Failed to enter VR mode (`requestPresent`): ' + err.message);
-          } else {
-            throw new Error('Failed to enter VR mode (`requestPresent`).');
-          }
-        }
-      },
-      writable: true
-    },
-     /**
-     * Call `exitPresent` if WebVR or WebVR polyfill.
-     * Handle events, states, fullscreen styles.
-     *
-     * @param {bool} fromExternal - Whether exiting VR due to an external event (e.g.,
-     *   Oculus Browser GearVR back button).
-     * @returns {Promise}
-     */
-    exitVR: {
-      value: function (fromExternal) {
-        var self = this;
-        var vrDisplay;
-
-        // Don't exit VR if not in VR.
-        if (!this.is('vr-mode')) { return Promise.resolve('Not in VR.'); }
-
-        exitFullscreen();
-
-        // Handle exiting VR if not yet already and in a headset or polyfill.
-        if (!fromExternal && (this.checkHeadsetConnected() || this.isMobile)) {
-          this.renderer.vr.enabled = false;
-          vrDisplay = utils.device.getVRDisplay();
-          return vrDisplay.exitPresent().then(exitVRSuccess, exitVRFailure);
-        }
-
-        // Handle exiting VR in all other cases (2D fullscreen, external exit VR event).
-        exitVRSuccess();
-
-        return Promise.resolve();
-
-        function exitVRSuccess () {
-          self.removeState('vr-mode');
-          // Lock to landscape orientation on mobile.
-          if (self.isMobile && screen.orientation && screen.orientation.unlock) {
-            screen.orientation.unlock();
-          }
-          // Exiting VR in embedded mode, no longer need fullscreen styles.
-          if (self.hasAttribute('embedded')) { self.removeFullScreenStyles(); }
-          self.resize();
-          if (self.isIOS) { utils.forceCanvasResizeSafariMobile(this.canvas); }
-          self.emit('exit-vr', {target: self});
-        }
-
-        function exitVRFailure (err) {
-          if (err && err.message) {
-            throw new Error('Failed to exit VR mode (`exitPresent`): ' + err.message);
-          } else {
-            throw new Error('Failed to exit VR mode (`exitPresent`).');
-          }
-        }
-      },
-      writable: true
-    },
-
-    pointerRestricted: {
-      value: function () {
-        if (this.canvas) {
-          var pointerLockElement = this.getPointerLockElement();
-          if (pointerLockElement && pointerLockElement !== this.canvas && document.exitPointerLock) {
-            // Recreate pointer lock on the canvas, if taken on another element.
-            document.exitPointerLock();
-          }
-
-          if (this.canvas.requestPointerLock) {
-            this.canvas.requestPointerLock();
-          }
-        }
-      }
-    },
-
-    pointerUnrestricted: {
-      value: function () {
-        var pointerLockElement = this.getPointerLockElement();
-        if (pointerLockElement && pointerLockElement === this.canvas && document.exitPointerLock) {
-          document.exitPointerLock();
-        }
-      }
-    },
-
-    /**
-     * Handle `vrdisplaypresentchange` event for exiting VR through other means than
-     * `<ESC>` key. For example, GearVR back button on Oculus Browser.
-     */
-    onVRPresentChange: {
-      value: function (evt) {
-        // Polyfill places display inside the detail property
-        var display = evt.display || evt.detail.display;
-        // Entering VR.
-        if (display.isPresenting) {
-          this.enterVR(true);
-          return;
-        }
-        // Exiting VR.
-        this.exitVR(true);
-      }
-    },
-
-    /**
-     * Wraps Entity.getAttribute to take into account for systems.
-     * If system exists, then return system data rather than possible component data.
-     */
-    getAttribute: {
-      value: function (attr) {
-        var system = this.systems[attr];
-        if (system) { return system.data; }
-        return AEntity.prototype.getAttribute.call(this, attr);
-      }
-    },
-
-    /**
-     * `getAttribute` used to be `getDOMAttribute` and `getComputedAttribute` used to be
-     * what `getAttribute` is now. Now legacy code.
-     */
-    getComputedAttribute: {
-      value: function (attr) {
-        warn('`getComputedAttribute` is deprecated. Use `getAttribute` instead.');
-        this.getAttribute(attr);
-      }
-    },
-
-    /**
-     * Wraps Entity.getDOMAttribute to take into account for systems.
-     * If system exists, then return system data rather than possible component data.
-     */
-    getDOMAttribute: {
-      value: function (attr) {
-        var system = this.systems[attr];
-        if (system) { return system.data; }
-        return AEntity.prototype.getDOMAttribute.call(this, attr);
-      }
-    },
-
-    /**
-     * Wrap Entity.setAttribute to take into account for systems.
-     * If system exists, then skip component initialization checks and do a normal
-     * setAttribute.
-     */
-    setAttribute: {
-      value: function (attr, value, componentPropValue) {
-        var system = this.systems[attr];
-        if (system) {
-          ANode.prototype.setAttribute.call(this, attr, value);
-          system.updateProperties(value);
-          return;
-        }
-        AEntity.prototype.setAttribute.call(this, attr, value, componentPropValue);
-      }
-    },
-
-    /**
-     * @param {object} behavior - A component.
-     */
-    removeBehavior: {
-      value: function (behavior) {
-        var behaviorArr;
-        var behaviorType;
-        var behaviors = this.behaviors;
-        var index;
-
-        // Check if behavior has tick and/or tock and remove the behavior from the appropriate array.
-        for (behaviorType in behaviors) {
-          if (!behavior[behaviorType]) { continue; }
-          behaviorArr = this.behaviors[behaviorType];
-          index = behaviorArr.indexOf(behavior);
-          if (index !== -1) { behaviorArr.splice(index, 1); }
-        }
-      }
-    },
-
-    resize: {
-      value: function () {
-        var camera = this.camera;
-        var canvas = this.canvas;
-        var embedded = this.getAttribute('embedded') && !this.is('vr-mode');
-        var size;
-        var vrDevice;
-        var isVRPresenting;
-        vrDevice = this.renderer.vr.getDevice();
-        isVRPresenting = this.renderer.vr.enabled && vrDevice && vrDevice.isPresenting;
-        // Do not update renderer, if a camera or a canvas have not been injected.
-        // In VR mode, three handles canvas resize based on the dimensions returned by
-        // the getEyeParameters function of the WebVR API. These dimensions are independent of
-        // the window size, therefore should not be overwritten with the window's width and height,
-        // except when in fullscreen mode.
-        if (!camera || !canvas || (this.is('vr-mode') && (this.isMobile || isVRPresenting))) { return; }
-        // Update camera.
-        size = getCanvasSize(canvas, embedded);
-        camera.aspect = size.width / size.height;
-        camera.updateProjectionMatrix();
-        // Notify renderer of size change.
-        this.renderer.setSize(size.width, size.height, false);
-      },
-      writable: true
-    },
-
-    setupRenderer: {
-      value: function () {
-        var renderer;
-        renderer = this.renderer = new THREE.WebGLRenderer({
-          canvas: this.canvas,
-          antialias: shouldAntiAlias(this),
-          alpha: true
-        });
-        renderer.setPixelRatio(window.devicePixelRatio);
-        renderer.sortObjects = false;
-      },
-      writable: window.debug
-    },
-
-    /**
-     * Handler attached to elements to help scene know when to kick off.
-     * Scene waits for all entities to load.
-     */
-    play: {
-      value: function () {
-        var self = this;
-        if (this.renderStarted) {
-          AEntity.prototype.play.call(this);
-          return;
-        }
-
-        this.addEventListener('loaded', function () {
-          AEntity.prototype.play.call(this);  // .play() *before* render.
-
-          // Wait for camera if necessary before rendering.
-          if (this.camera) {
-            startRender(this);
-            return;
-          }
-          this.addEventListener('camera-set-active', function () { startRender(this); });
-
-          function startRender (sceneEl) {
-            if (sceneEl.renderStarted) { return; }
-
-            sceneEl.resize();
-
-            // Kick off render loop.
-            if (sceneEl.renderer) {
-              if (window.performance) {
-                window.performance.mark('render-started');
-              }
-              sceneEl.clock = new THREE.Clock();
-              sceneEl.render();
-              sceneEl.renderStarted = true;
-              sceneEl.emit('renderstart');
-            }
-          }
-        });
-
-        // setTimeout to wait for all nodes to attach and run their callbacks.
-        setTimeout(function () {
-          AEntity.prototype.load.call(self);
-        });
-      }
-    },
-
-    /**
-     * Wrap `updateComponent` to not initialize the component if the component has a system
-     * (aframevr/aframe#2365).
-     */
-    updateComponent: {
-      value: function (componentName) {
-        if (componentName in systems) { return; }
-        AEntity.prototype.updateComponent.apply(this, arguments);
-      }
-    },
-
-    /**
-     * Behavior-updater meant to be called from scene render.
-     * Abstracted to a different function to facilitate unit testing (`scene.tick()`) without
-     * needing to render.
-     */
-    tick: {
-      value: function (time, timeDelta) {
-        var i;
-        var systems = this.systems;
-
-        // Animations.
-        TWEEN.update();
-
-        // Components.
-        for (i = 0; i < this.behaviors.tick.length; i++) {
-          if (!this.behaviors.tick[i].el.isPlaying) { continue; }
-          this.behaviors.tick[i].tick(time, timeDelta);
-        }
-
-        // Systems.
-        for (i = 0; i < this.systemNames.length; i++) {
-          if (!systems[this.systemNames[i]].tick) { continue; }
-          systems[this.systemNames[i]].tick(time, timeDelta);
-        }
-      }
-    },
-
-    /**
-     * Behavior-updater meant to be called after scene render for post processing purposes.
-     * Abstracted to a different function to facilitate unit testing (`scene.tock()`) without
-     * needing to render.
-     */
-    tock: {
-      value: function (time, timeDelta) {
-        var i;
-        var systems = this.systems;
-
-        // Components.
-        for (i = 0; i < this.behaviors.tock.length; i++) {
-          if (!this.behaviors.tock[i].el.isPlaying) { continue; }
-          this.behaviors.tock[i].tock(time, timeDelta);
-        }
-
-        // Systems.
-        for (i = 0; i < this.systemNames.length; i++) {
-          if (!systems[this.systemNames[i]].tock) { continue; }
-          systems[this.systemNames[i]].tock(time, timeDelta);
-        }
-      }
-    },
-
-    /**
-     * The render loop.
-     *
-     * Updates animations.
-     * Updates behaviors.
-     * Renders with request animation frame.
-     */
-    render: {
-      value: function () {
-        var delta = this.clock.getDelta() * 1000;
-        var renderer = this.renderer;
-        this.time = this.clock.elapsedTime * 1000;
-
-        if (this.isPlaying) { this.tick(this.time, delta); }
-
-        renderer.animate(this.render);
-        renderer.render(this.object3D, this.camera, this.renderTarget);
-
-        if (this.isPlaying) { this.tock(this.time, delta); }
-      },
-      writable: true
-    }
-  })
-});
-
-/**
- * Return the canvas size where the scene will be rendered
- * It will be always the window size except when the scene
- * is embedded. The parent size will be returned in that case
- *
- * @param {object} canvasEl - the canvas element
- * @param {boolean} embedded - Is the scene embedded?
- */
-function getCanvasSize (canvasEl, embedded) {
-  if (embedded) {
-    return {
-      height: canvasEl.parentElement.offsetHeight,
-      width: canvasEl.parentElement.offsetWidth
-    };
-  }
-  return {
-    height: window.innerHeight,
-    width: window.innerWidth
-  };
-}
-
-function requestFullscreen (canvas) {
-  var requestFullscreen =
-    canvas.requestFullscreen ||
-    canvas.webkitRequestFullscreen ||
-    canvas.mozRequestFullScreen ||  // The capitalized `S` is not a typo.
-    canvas.msRequestFullscreen;
-  requestFullscreen.apply(canvas);
-}
-
-function exitFullscreen () {
-  if (document.exitFullscreen) {
-    document.exitFullscreen();
-  } else if (document.mozCancelFullScreen) {
-    document.mozCancelFullScreen();
-  } else if (document.webkitExitFullscreen) {
-    document.webkitExitFullscreen();
-  }
-}
-
-/**
- * Determines if renderer anti-aliasing should be enabled.
- * Enabled by default if has native WebVR or is desktop.
- *
- * @returns {bool}
- */
-function shouldAntiAlias (sceneEl) {
-  // Explicitly set.
-  if (sceneEl.getAttribute('antialias') !== null) {
-    return sceneEl.getAttribute('antialias') === 'true';
-  }
-
-  // Default not AA for mobile.
-  return !sceneEl.isMobile;
-}
-module.exports.shouldAntiAlias = shouldAntiAlias;  // For testing.
-
-function setupCanvas (sceneEl) {
-  var canvasEl;
-
-  canvasEl = document.createElement('canvas');
-  canvasEl.classList.add('a-canvas');
-  // Mark canvas as provided/injected by A-Frame.
-  canvasEl.dataset.aframeCanvas = true;
-  sceneEl.appendChild(canvasEl);
-
-  document.addEventListener('fullscreenchange', onFullScreenChange);
-  document.addEventListener('mozfullscreenchange', onFullScreenChange);
-  document.addEventListener('webkitfullscreenchange', onFullScreenChange);
-
-  // Prevent overscroll on mobile.
-  canvasEl.addEventListener('touchmove', function (event) { event.preventDefault(); });
-
-  // Set canvas on scene.
-  sceneEl.canvas = canvasEl;
-  sceneEl.emit('render-target-loaded', {target: canvasEl});
-  // For unknown reasons a synchronous resize does not work on desktop when
-  // entering/exiting fullscreen.
-  setTimeout(bind(sceneEl.resize, sceneEl), 0);
-
-  function onFullScreenChange () {
-    var fullscreenEl =
-      document.fullscreenElement ||
-      document.mozFullScreenElement ||
-      document.webkitFullscreenElement;
-    // No fullscren element === exit fullscreen
-    if (!fullscreenEl) { sceneEl.exitVR(); }
-    document.activeElement.blur();
-    document.body.focus();
-  }
-}
-module.exports.setupCanvas = setupCanvas;  // For testing.
-
-},{"../../lib/three":173,"../../utils/":195,"../a-entity":121,"../a-node":123,"../a-register-element":124,"../system":135,"./metaTags":129,"./postMessage":130,"./scenes":131,"./wakelock":132,"@tweenjs/tween.js":1}],129:[function(_dereq_,module,exports){
-var constants = _dereq_('../../constants/');
-var extend = _dereq_('../../utils').extend;
-
-var MOBILE_HEAD_TAGS = module.exports.MOBILE_HEAD_TAGS = [
-  Meta({name: 'viewport', content: 'width=device-width,initial-scale=1,maximum-scale=1,shrink-to-fit=no,user-scalable=no,minimal-ui'}),
-
-  // W3C-standardised meta tags.
-  Meta({name: 'mobile-web-app-capable', content: 'yes'}),
-  Meta({name: 'theme-color', content: 'black'})
-];
-
-var MOBILE_IOS_HEAD_TAGS = [
-  // iOS-specific meta tags for fullscreen when pinning to homescreen.
-  Meta({name: 'apple-mobile-web-app-capable', content: 'yes'}),
-  Meta({name: 'apple-mobile-web-app-status-bar-style', content: 'black'}),
-  Link({rel: 'apple-touch-icon', href: 'https://aframe.io/images/aframe-logo-152.png'})
-];
-
-function Meta (attrs) {
-  return {
-    tagName: 'meta',
-    attributes: attrs,
-    exists: function () { return document.querySelector('meta[name="' + attrs.name + '"]'); }
-  };
-}
-
-function Link (attrs) {
-  return {
-    tagName: 'link',
-    attributes: attrs,
-    exists: function () { return document.querySelector('link[rel="' + attrs.rel + '"]'); }
-  };
-}
-
-/**
- * Injects the necessary metatags in the document for mobile support:
- * 1. Prevent the user to zoom in the document.
- * 2. Ensure that window.innerWidth and window.innerHeight have the correct
- *    values and the canvas is properly scaled.
- * 3. To allow fullscreen mode when pinning a web app on the home screen on
- *    iOS.
- * Adapted from https://www.reddit.com/r/web_design/comments/3la04p/
- *
- * @param {object} scene - Scene element
- * @returns {Array}
- */
-module.exports.inject = function injectHeadTags (scene) {
-  var headEl = document.head;
-  var headScriptEl = headEl.querySelector('script');
-  var tag;
-  var headTags = [];
-  MOBILE_HEAD_TAGS.forEach(createAndInjectTag);
-  if (scene.isIOS) {
-    MOBILE_IOS_HEAD_TAGS.forEach(createAndInjectTag);
-  }
-  return headTags;
-
-  function createAndInjectTag (tagObj) {
-    if (!tagObj || tagObj.exists()) { return; }
-
-    tag = createTag(tagObj);
-    if (!tag) { return; }
-
-    if (headScriptEl) {
-      headScriptEl.parentNode.insertBefore(tag, headScriptEl);
-    } else {
-      headEl.appendChild(tag);
-    }
-
-    headTags.push(tag);
-  }
-};
-
-function createTag (tagObj) {
-  if (!tagObj || !tagObj.tagName) { return; }
-  var meta = document.createElement(tagObj.tagName);
-  meta.setAttribute(constants.AFRAME_INJECTED, '');
-  return extend(meta, tagObj.attributes);
-}
-
-},{"../../constants/":116,"../../utils":195}],130:[function(_dereq_,module,exports){
-var bind = _dereq_('../../utils/bind');
-var isIframed = _dereq_('../../utils/').isIframed;
-
-/**
- * Provides a post message API for scenes contained
- * in an iframe.
- */
-module.exports = function initPostMessageAPI (scene) {
-  // Handles fullscreen behavior when inside an iframe.
-  if (!isIframed()) { return; }
-  // postMessage API handler
-  window.addEventListener('message', bind(postMessageAPIHandler, scene));
-};
-
-function postMessageAPIHandler (event) {
-  var scene = this;
-  if (!event.data) { return; }
-
-  switch (event.data.type) {
-    case 'vr': {
-      switch (event.data.data) {
-        case 'enter':
-          scene.enterVR();
-          break;
-        case 'exit':
-          scene.exitVR();
-          break;
-      }
-    }
-  }
-}
-
-},{"../../utils/":195,"../../utils/bind":189}],131:[function(_dereq_,module,exports){
-/*
-  Scene index for keeping track of created scenes.
-*/
-module.exports = [];
-
-},{}],132:[function(_dereq_,module,exports){
-var Wakelock = _dereq_('../../../vendor/wakelock/wakelock');
-
-module.exports = function initWakelock (scene) {
-  if (!scene.isMobile) { return; }
-
-  var wakelock = scene.wakelock = new Wakelock();
-  scene.addEventListener('enter-vr', function () { wakelock.request(); });
-  scene.addEventListener('exit-vr', function () { wakelock.release(); });
-};
-
-},{"../../../vendor/wakelock/wakelock":204}],133:[function(_dereq_,module,exports){
-var utils = _dereq_('../utils/');
-var PropertyTypes = _dereq_('./propertyTypes');
-
-var debug = utils.debug;
-var isValidDefaultValue = PropertyTypes.isValidDefaultValue;
-var propertyTypes = PropertyTypes.propertyTypes;
-
-var warn = debug('core:schema:warn');
-
-/**
- * A schema is classified as a schema for a single property if:
- * - `type` is defined on the schema as a string.
- * - OR `default` is defined on the schema, as a reserved keyword.
- * - OR schema is empty.
- */
-function isSingleProperty (schema) {
-  if ('type' in schema) {
-    return typeof schema.type === 'string';
-  }
-  return 'default' in schema;
-}
-module.exports.isSingleProperty = isSingleProperty;
-
-/**
- * Build step to schema to use `type` to inject default value, parser, and stringifier.
- *
- * @param {object} schema
- * @param {string} componentName
- * @returns {object} Schema.
- */
-module.exports.process = function (schema, componentName) {
-  var propName;
-
-  // For single property schema, run processPropDefinition over the whole schema.
-  if (isSingleProperty(schema)) {
-    return processPropertyDefinition(schema, componentName);
-  }
-
-  // For multi-property schema, run processPropDefinition over each property definition.
-  for (propName in schema) {
-    schema[propName] = processPropertyDefinition(schema[propName], componentName);
-  }
-  return schema;
-};
-
-/**
- * Inject default value, parser, stringifier for single property.
- *
- * @param {object} propDefinition
- * @param {string} componentName
- */
-function processPropertyDefinition (propDefinition, componentName) {
-  var defaultVal = propDefinition.default;
-  var isCustomType;
-  var propType;
-  var typeName = propDefinition.type;
-
-  // Type inference.
-  if (!propDefinition.type) {
-    if (defaultVal !== undefined &&
-        (typeof defaultVal === 'boolean' || typeof defaultVal === 'number')) {
-      // Type inference.
-      typeName = typeof defaultVal;
-    } else if (Array.isArray(defaultVal)) {
-      typeName = 'array';
-    } else {
-      // Fall back to string.
-      typeName = 'string';
-    }
-  } else if (propDefinition.type === 'bool') {
-    typeName = 'boolean';
-  } else if (propDefinition.type === 'float') {
-    typeName = 'number';
-  }
-
-  propType = propertyTypes[typeName];
-  if (!propType) {
-    warn('Unknown property type for component `' + componentName + '`: ' + typeName);
-  }
-
-  // Fill in parse and stringify using property types.
-  isCustomType = !!propDefinition.parse;
-  propDefinition.parse = propDefinition.parse || propType.parse;
-  propDefinition.stringify = propDefinition.stringify || propType.stringify;
-
-  // Fill in type name.
-  propDefinition.type = typeName;
-
-  // Check that default value exists.
-  if ('default' in propDefinition) {
-    // Check that default values are valid.
-    if (!isCustomType && !isValidDefaultValue(typeName, defaultVal)) {
-      warn('Default value `' + defaultVal + '` does not match type `' + typeName +
-           '` in component `' + componentName + '`');
-    }
-  } else {
-    // Fill in default value.
-    propDefinition.default = propType.default;
-  }
-
-  return propDefinition;
-}
-module.exports.processPropertyDefinition = processPropertyDefinition;
-
-/**
- * Parse propData using schema. Use default values if not existing in propData.
- *
- * @param {object} propData - Unparsed properties.
- * @param {object} schema - Property types definition.
- * @param {boolean} getPartialData - Whether to return full component data or just the data
- *        with keys in `propData`.
- * @param {string } componentName - Name of the component, used for the property warning.
- * @param {boolean} silent - Suppress warning messages.
- */
-module.exports.parseProperties = (function () {
-  var propNames = [];
-
-  return function (propData, schema, getPartialData, componentName, silent) {
-    var i;
-    var propName;
-    var propDefinition;
-    var propValue;
-
-    propNames.length = 0;
-    for (propName in (getPartialData ? propData : schema)) { propNames.push(propName); }
-
-    if (propData === null || typeof propData !== 'object') { return propData; }
-
-    // Validation errors.
-    for (propName in propData) {
-      if (!schema[propName] && !silent) {
-        warn('Unknown property `' + propName +
-             '` for component/system `' + componentName + '`.');
-      }
-    }
-
-    for (i = 0; i < propNames.length; i++) {
-      propName = propNames[i];
-      propDefinition = schema[propName];
-      propValue = propData[propName];
-      if (!(schema[propName])) { return; }
-      propData[propName] = parseProperty(propValue, propDefinition);
-    }
-
-    return propData;
-  };
-})();
-
-/**
- * Deserialize a single property.
- */
-function parseProperty (value, propDefinition) {
-  // Use default value if value is falsy.
-  if (value === undefined || value === null || value === '') {
-    value = propDefinition.default;
-    if (Array.isArray(value)) { value = value.slice(); }
-  }
-  // Invoke property type parser.
-  return propDefinition.parse(value, propDefinition.default);
-}
-module.exports.parseProperty = parseProperty;
-
-/**
- * Serialize a group of properties.
- */
-module.exports.stringifyProperties = function (propData, schema) {
-  var propName;
-  var propDefinition;
-  var propValue;
-  var stringifiedData = {};
-  var value;
-
-  for (propName in propData) {
-    propDefinition = schema[propName];
-    propValue = propData[propName];
-    value = propValue;
-    if (typeof value === 'object') {
-      value = stringifyProperty(propValue, propDefinition);
-      if (!propDefinition) { warn('Unknown component property: ' + propName); }
-    }
-    stringifiedData[propName] = value;
-  }
-  return stringifiedData;
-};
-
-/**
- * Serialize a single property.
- */
-function stringifyProperty (value, propDefinition) {
-  // This function stringifies but it's used in a context where
-  // there's always second stringification pass. By returning the original
-  // value when it's not an object we save one unnecessary call
-  // to JSON.stringify.
-  if (typeof value !== 'object') { return value; }
-  // if there's no schema for the property we use standar JSON stringify
-  if (!propDefinition || value === null) { return JSON.stringify(value); }
-  return propDefinition.stringify(value);
-}
-module.exports.stringifyProperty = stringifyProperty;
-
-},{"../utils/":195,"./propertyTypes":127}],134:[function(_dereq_,module,exports){
-var schema = _dereq_('./schema');
-
-var processSchema = schema.process;
-var shaders = module.exports.shaders = {};  // Keep track of registered shaders.
-var shaderNames = module.exports.shaderNames = [];  // Keep track of the names of registered shaders.
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils');
-
-// A-Frame properties to three.js uniform types.
-var propertyToThreeMapping = {
-  array: 'v3',
-  color: 'v3',
-  int: 'i',
-  number: 'f',
-  map: 't',
-  time: 'f',
-  vec2: 'v2',
-  vec3: 'v3',
-  vec4: 'v4'
-};
-
-/**
- * Shader class definition.
- *
- * Shaders extend the material component API so you can create your own library
- * of customized materials
- *
- */
-var Shader = module.exports.Shader = function () {};
-
-Shader.prototype = {
-  /**
-   * Contains the type schema and defaults for the data values.
-   * Data is coerced into the types of the values of the defaults.
-   */
-  schema: {},
-
-  vertexShader:
-    'void main() {' +
-      'gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);' +
-    '}',
-
-  fragmentShader:
-    'void main() {' +
-      'gl_FragColor = vec4(1.0, 0.0, 1.0, 1.0);' +
-    '}',
-
-  /**
-   * Init handler. Similar to attachedCallback.
-   * Called during shader initialization and is only run once.
-   */
-  init: function (data) {
-    this.attributes = this.initVariables(data, 'attribute');
-    this.uniforms = this.initVariables(data, 'uniform');
-    this.material = new (this.raw ? THREE.RawShaderMaterial : THREE.ShaderMaterial)({
-      // attributes: this.attributes,
-      uniforms: this.uniforms,
-      vertexShader: this.vertexShader,
-      fragmentShader: this.fragmentShader
-    });
-    return this.material;
-  },
-
-  initVariables: function (data, type) {
-    var variables = {};
-    var schema = this.schema;
-    Object.keys(schema).forEach(function processSchema (key) {
-      if (schema[key].is !== type) { return; }
-      var varType = propertyToThreeMapping[schema[key].type];
-      variables[key] = {
-        type: varType,
-        value: undefined  // Let updateVariables handle setting these.
-      };
-    });
-    return variables;
-  },
-
-  /**
-   * Update handler. Similar to attributeChangedCallback.
-   * Called whenever the associated material data changes.
-   *
-   * @param {object} data - New material data.
-   */
-  update: function (data) {
-    this.updateVariables(data, 'attribute');
-    this.updateVariables(data, 'uniform');
-  },
-
-  updateVariables: function (data, type) {
-    var self = this;
-    var variables = type === 'uniform' ? this.uniforms : this.attributes;
-    var schema = this.schema;
-    Object.keys(data).forEach(function processData (key) {
-      var materialKey;
-      if (!schema[key] || schema[key].is !== type) { return; }
-
-      if (schema[key].type === 'map') {
-        // If data unchanged, get out early.
-        if (!variables[key] || variables[key].value === data[key]) { return; }
-
-        // Special handling is needed for textures.
-        materialKey = '_texture_' + key;
-
-        // We can't actually set the variable correctly until we've loaded the texture.
-        self.el.addEventListener('materialtextureloaded', function () {
-          variables[key].value = self.material[materialKey];
-          variables[key].needsUpdate = true;
-        });
-
-        // Kick off the texture update now that handler is added.
-        utils.material.updateMapMaterialFromData(materialKey, key, self, data);
-        return;
-      }
-      variables[key].value = self.parseValue(schema[key].type, data[key]);
-      variables[key].needsUpdate = true;
-    });
-  },
-
-  parseValue: function (type, value) {
-    var color;
-    switch (type) {
-      case 'vec2': {
-        return new THREE.Vector2(value.x, value.y);
-      }
-      case 'vec3': {
-        return new THREE.Vector3(value.x, value.y, value.z);
-      }
-      case 'vec4': {
-        return new THREE.Vector4(value.x, value.y, value.z, value.w);
-      }
-      case 'color': {
-        color = new THREE.Color(value);
-        return new THREE.Vector3(color.r, color.g, color.b);
-      }
-      case 'map': {
-        return THREE.ImageUtils.loadTexture(value);
-      }
-      default: {
-        return value;
-      }
-    }
-  }
-};
-
-/**
- * Registers a shader to A-Frame.
- *
- * @param {string} name - shader name.
- * @param {object} definition - shader property and methods.
- * @returns {object} Shader.
- */
-module.exports.registerShader = function (name, definition) {
-  var NewShader;
-  var proto = {};
-
-  // Format definition object to prototype object.
-  Object.keys(definition).forEach(function (key) {
-    proto[key] = {
-      value: definition[key],
-      writable: true
-    };
-  });
-
-  if (shaders[name]) {
-    throw new Error('The shader ' + name + ' has been already registered');
-  }
-  NewShader = function () { Shader.call(this); };
-  NewShader.prototype = Object.create(Shader.prototype, proto);
-  NewShader.prototype.name = name;
-  NewShader.prototype.constructor = NewShader;
-  shaders[name] = {
-    Shader: NewShader,
-    schema: processSchema(NewShader.prototype.schema)
-  };
-  shaderNames.push(name);
-  return NewShader;
-};
-
-},{"../lib/three":173,"../utils":195,"./schema":133}],135:[function(_dereq_,module,exports){
-var components = _dereq_('./component');
-var schema = _dereq_('./schema');
-var utils = _dereq_('../utils/');
-
-var parseProperties = schema.parseProperties;
-var parseProperty = schema.parseProperty;
-var processSchema = schema.process;
-var isSingleProp = schema.isSingleProperty;
-var styleParser = utils.styleParser;
-
-var systems = module.exports.systems = {};  // Keep track of registered systems.
-
-/**
- * System class definition.
- *
- * Systems provide global scope and services to a group of instantiated components of the
- * same class. They can also help abstract logic away from components such that components
- * only have to worry about data.
- *
- * For example, a physics component that creates a physics world that oversees
- * all entities with a physics or rigid body component.
- *
- * TODO: Have the System prototype reuse the Component prototype. Most code is copied
- * and some pieces are missing from the Component facilities (e.g., attribute caching,
- * setAttribute behavior).
- *
- * @member {string} name - Name that system is registered under.
- * @member {Element} sceneEl - Handle to the scene element where system applies to.
- */
-var System = module.exports.System = function (sceneEl) {
-  var component = components && components.components[this.name];
-
-  // Set reference to scene.
-  this.el = sceneEl;
-  this.sceneEl = sceneEl;
-
-  // Set reference to matching component (if exists).
-  if (component) { component.Component.prototype.system = this; }
-
-  // Process system configuration.
-  this.buildData();
-  this.init();
-  this.update({});
-};
-
-System.prototype = {
-  /**
-   * Schema to configure system.
-   */
-  schema: {},
-
-  /**
-   * Init handler. Called during scene initialization and is only run once.
-   * Systems can use this to set initial state.
-   */
-  init: function () { /* no-op */ },
-
-  /**
-   * Update handler. Called during scene attribute updates.
-   * Systems can use this to dynamically update their state.
-   */
-  update: function (oldData) { /* no-op */ },
-
-  /**
-   * Build data and call update handler.
-   *
-   * @private
-   */
-  updateProperties: function (rawData) {
-    var oldData = this.data;
-    if (!Object.keys(schema).length) { return; }
-    this.buildData(rawData);
-    this.update(oldData);
-  },
-
-  /**
-   * Parse data.
-   */
-  buildData: function (rawData) {
-    var schema = this.schema;
-    if (!Object.keys(schema).length) { return; }
-    rawData = rawData || window.HTMLElement.prototype.getAttribute.call(this.sceneEl, this.name);
-    if (isSingleProp(schema)) {
-      this.data = parseProperty(rawData, schema);
-    } else {
-      this.data = parseProperties(styleParser.parse(rawData) || {}, schema);
-    }
-  },
-
-  /**
-   * Tick handler.
-   * Called on each tick of the scene render loop.
-   * Affected by play and pause.
-   *
-   * @param {number} time - Scene tick time.
-   * @param {number} timeDelta - Difference in current render time and previous render time.
-   */
-  tick: undefined,
-
-  /**
-   * Tock handler.
-   * Called on each tock of the scene render loop.
-   * Affected by play and pause.
-   *
-   * @param {number} time - Scene tick time.
-   * @param {number} timeDelta - Difference in current render time and previous render time.
-   */
-  tock: undefined,
-
-  /**
-   * Called to start any dynamic behavior (e.g., animation, AI, events, physics).
-   */
-  play: function () { /* no-op */ },
-
-  /**
-   * Called to stop any dynamic behavior (e.g., animation, AI, events, physics).
-   */
-  pause: function () { /* no-op */ }
-};
-
-/**
- * Registers a system to A-Frame.
- *
- * @param {string} name - Component name.
- * @param {object} definition - Component property and methods.
- * @returns {object} Component.
- */
-module.exports.registerSystem = function (name, definition) {
-  var i;
-  var NewSystem;
-  var proto = {};
-  var scenes = utils.findAllScenes(document);
-
-  // Format definition object to prototype object.
-  Object.keys(definition).forEach(function (key) {
-    proto[key] = {
-      value: definition[key],
-      writable: true
-    };
-  });
-
-  if (systems[name]) {
-    throw new Error('The system `' + name + '` has been already registered. ' +
-                    'Check that you are not loading two versions of the same system ' +
-                    'or two different systems of the same name.');
-  }
-  NewSystem = function (sceneEl) { System.call(this, sceneEl); };
-  NewSystem.prototype = Object.create(System.prototype, proto);
-  NewSystem.prototype.name = name;
-  NewSystem.prototype.constructor = NewSystem;
-  NewSystem.prototype.schema = utils.extend(processSchema(NewSystem.prototype.schema));
-  systems[name] = NewSystem;
-
-  // Initialize systems for existing scenes
-  for (i = 0; i < scenes.length; i++) { scenes[i].initSystem(name); }
-};
-
-},{"../utils/":195,"./component":125,"./schema":133}],136:[function(_dereq_,module,exports){
-_dereq_('./pivot');
-
-},{"./pivot":137}],137:[function(_dereq_,module,exports){
-var registerComponent = _dereq_('../../core/component').registerComponent;
-var THREE = _dereq_('../../lib/three');
-
-var originalPosition = new THREE.Vector3();
-var originalRotation = new THREE.Vector3();
-
-/**
- * Wrap el.object3D within an outer group. Apply pivot to el.object3D as position.
- */
-registerComponent('pivot', {
-  dependencies: ['position'],
-
-  schema: {type: 'vec3'},
-
-  init: function () {
-    var data = this.data;
-    var el = this.el;
-    var originalParent = el.object3D.parent;
-    var originalGroup = el.object3D;
-    var outerGroup = new THREE.Group();
-
-    originalPosition.copy(originalGroup.position);
-    originalRotation.copy(originalGroup.rotation);
-
-    // Detach current group from parent.
-    originalParent.remove(originalGroup);
-    outerGroup.add(originalGroup);
-
-    // Set new group as the outer group.
-    originalParent.add(outerGroup);
-
-    // Set outer group as new object3D.
-    el.object3D = outerGroup;
-
-    // Apply pivot to original group.
-    originalGroup.position.set(-1 * data.x, -1 * data.y, -1 * data.z);
-
-    // Offset the pivot so that world position not affected.
-    // And restore position onto outer group.
-    outerGroup.position.set(data.x + originalPosition.x, data.y + originalPosition.y,
-                            data.z + originalPosition.z);
-
-    // Transfer rotation to outer group.
-    outerGroup.rotation.copy(originalGroup.rotation);
-    originalGroup.rotation.set(0, 0, 0);
-  }
-});
-
-},{"../../core/component":125,"../../lib/three":173}],138:[function(_dereq_,module,exports){
-/**
- * Common mesh defaults, mappings, and transforms.
- */
-var components = _dereq_('../../core/component').components;
-var shaders = _dereq_('../../core/shader').shaders;
-var utils = _dereq_('../../utils/');
-
-var materialMappings = {};
-Object.keys(components.material.schema).forEach(addMapping);
-Object.keys(shaders.standard.schema).forEach(addMapping);
-
-function addMapping (prop) {
-  // To hyphenated.
-  var htmlAttrName = prop.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
-  if (prop === 'fog') { htmlAttrName = 'material-fog'; }
-  if (prop === 'visible') { htmlAttrName = 'material-visible'; }
-  materialMappings[htmlAttrName] = 'material.' + prop;
-}
-
-module.exports = function getMeshMixin () {
-  return {
-    defaultComponents: {material: {}},
-    mappings: utils.extend({}, materialMappings)
-  };
-};
-
-},{"../../core/component":125,"../../core/shader":134,"../../utils/":195}],139:[function(_dereq_,module,exports){
-_dereq_('./primitives/a-camera');
-_dereq_('./primitives/a-collada-model');
-_dereq_('./primitives/a-cursor');
-_dereq_('./primitives/a-curvedimage');
-_dereq_('./primitives/a-gltf-model');
-_dereq_('./primitives/a-image');
-_dereq_('./primitives/a-light');
-_dereq_('./primitives/a-link');
-_dereq_('./primitives/a-obj-model');
-_dereq_('./primitives/a-sky');
-_dereq_('./primitives/a-sound');
-_dereq_('./primitives/a-text');
-_dereq_('./primitives/a-video');
-_dereq_('./primitives/a-videosphere');
-_dereq_('./primitives/meshPrimitives');
-
-},{"./primitives/a-camera":141,"./primitives/a-collada-model":142,"./primitives/a-cursor":143,"./primitives/a-curvedimage":144,"./primitives/a-gltf-model":145,"./primitives/a-image":146,"./primitives/a-light":147,"./primitives/a-link":148,"./primitives/a-obj-model":149,"./primitives/a-sky":150,"./primitives/a-sound":151,"./primitives/a-text":152,"./primitives/a-video":153,"./primitives/a-videosphere":154,"./primitives/meshPrimitives":155}],140:[function(_dereq_,module,exports){
-var AEntity = _dereq_('../../core/a-entity');
-var components = _dereq_('../../core/component').components;
-var registerElement = _dereq_('../../core/a-register-element').registerElement;
-var utils = _dereq_('../../utils/');
-
-var debug = utils.debug;
-var setComponentProperty = utils.entity.setComponentProperty;
-var log = debug('extras:primitives:debug');
-var warn = debug('extras:primitives:warn');
-
-var primitives = module.exports.primitives = {};
-
-module.exports.registerPrimitive = function registerPrimitive (name, definition) {
-  name = name.toLowerCase();
-  log('Registering <%s>', name);
-
-  // Deprecation warning for defaultAttributes usage.
-  if (definition.defaultAttributes) {
-    warn("The 'defaultAttributes' object is deprecated. Use 'defaultComponents' instead.");
-  }
-
-  var primitive = registerElement(name, {
-    prototype: Object.create(AEntity.prototype, {
-      defaultComponentsFromPrimitive: {
-        value: definition.defaultComponents || definition.defaultAttributes || {}
-      },
-      deprecated: {value: definition.deprecated || null},
-      deprecatedMappings: {value: definition.deprecatedMappings || {}},
-      mappings: {value: definition.mappings || {}},
-
-      createdCallback: {
-        value: function () {
-          if (definition.deprecated) { console.warn(definition.deprecated); }
-          this.resolveMappingCollisions();
-        }
-      },
-
-      /**
-       * If a mapping collides with a registered component name
-       * it renames the mapping to componentname-property
-       */
-      resolveMappingCollisions: {
-        value: function () {
-          var mappings = this.mappings;
-          var self = this;
-          Object.keys(mappings).forEach(function resolveCollision (key) {
-            var newAttribute;
-            if (key !== key.toLowerCase()) { warn('Mapping keys should be specified in lower case. The mapping key ' + key + ' may not be recognized'); }
-            if (components[key]) {
-              newAttribute = mappings[key].replace('.', '-');
-              mappings[newAttribute] = mappings[key];
-              delete mappings[key];
-              console.warn('The primitive ' + self.tagName.toLowerCase() + ' has a mapping collision. ' +
-                           'The attribute ' + key + ' has the same name as a registered component and' +
-                           ' has been renamed to ' + newAttribute);
-            }
-          });
-        }
-      },
-
-      getExtraComponents: {
-        value: function () {
-          var attr;
-          var data;
-          var i;
-          var mapping;
-          var mixins;
-          var path;
-          var self = this;
-
-          // Gather component data from default components.
-          data = utils.clone(this.defaultComponentsFromPrimitive);
-
-          // Factor in mixins to overwrite default components.
-          mixins = this.getAttribute('mixin');
-          if (mixins) {
-            mixins = mixins.trim().split(' ');
-            mixins.forEach(function applyMixin (mixinId) {
-              var mixinComponents = self.sceneEl.querySelector('#' + mixinId).componentCache;
-              Object.keys(mixinComponents).forEach(function setComponent (name) {
-                data[name] = extend(data[name], mixinComponents[name]);
-              });
-            });
-          }
-
-          // Gather component data from mappings.
-          for (i = 0; i < this.attributes.length; i++) {
-            attr = this.attributes[i];
-            mapping = this.mappings[attr.name];
-            if (mapping) {
-              path = utils.entity.getComponentPropertyPath(mapping);
-              if (path.constructor === Array) {
-                data[path[0]] = data[path[0]] || {};
-                data[path[0]][path[1]] = attr.value.trim();
-              } else {
-                data[path] = attr.value.trim();
-              }
-              continue;
-            }
-          }
-
-          return data;
-
-          /**
-           * For the base to be extensible, both objects must be pure JavaScript objects.
-           * The function assumes that base is undefined, or null or a pure object.
-           */
-          function extend (base, extension) {
-            if (isUndefined(base)) {
-              return copy(extension);
-            }
-            if (isUndefined(extension)) {
-              return copy(base);
-            }
-            if (isPureObject(base) && isPureObject(extension)) {
-              return utils.extendDeep(base, extension);
-            }
-            return copy(extension);
-          }
-
-          function isUndefined (value) {
-            return typeof value === 'undefined';
-          }
-
-          function copy (value) {
-            if (isPureObject(value)) {
-              return utils.extendDeep({}, value);
-            }
-            return value;
-          }
-
-          function isPureObject (value) {
-            return value !== null && value.constructor === Object;
-          }
-        }
-      },
-
-      /**
-       * Sync to attribute to component property whenever mapped attribute changes.
-       * If attribute is mapped to a component property, set the component property using
-       * the attribute value.
-       */
-      attributeChangedCallback: {
-        value: function (attr, oldVal, value) {
-          var componentName = this.mappings[attr];
-
-          if (attr in this.deprecatedMappings) {
-            console.warn(this.deprecatedMappings[attr]);
-          }
-
-          if (!attr || !componentName) { return; }
-
-          // Set value.
-          setComponentProperty(this, componentName, value);
-        }
-      }
-    })
-  });
-
-  // Store.
-  primitives[name] = primitive;
-  return primitive;
-};
-
-/**
- * Add component mappings using schema.
- */
-function addComponentMapping (componentName, mappings) {
-  var schema = components[componentName].schema;
-  Object.keys(schema).map(function (prop) {
-    // Hyphenate where there is camelCase.
-    var attrName = prop.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
-    // If there is a mapping collision, prefix with component name and hyphen.
-    if (mappings[attrName] !== undefined) { attrName = componentName + '-' + prop; }
-    mappings[attrName] = componentName + '.' + prop;
-  });
-}
-
-/**
- * Helper to define a primitive, building mappings using a component schema.
- */
-function definePrimitive (tagName, defaultComponents, mappings) {
-  // If no initial mappings provided, start from empty map.
-  mappings = mappings || {};
-
-  // From the default components, add mapping automagically.
-  Object.keys(defaultComponents).map(function buildMappings (componentName) {
-    addComponentMapping(componentName, mappings);
-  });
-
-  // Register the primitive.
-  module.exports.registerPrimitive(tagName, utils.extendDeep({}, null, {
-    defaultComponents: defaultComponents,
-    mappings: mappings
-  }));
-}
-module.exports.definePrimitive = definePrimitive;
-
-},{"../../core/a-entity":121,"../../core/a-register-element":124,"../../core/component":125,"../../utils/":195}],141:[function(_dereq_,module,exports){
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-
-registerPrimitive('a-camera', {
-  defaultComponents: {
-    'camera': {},
-    'look-controls': {},
-    'wasd-controls': {}
-  },
-
-  mappings: {
-    active: 'camera.active',
-    far: 'camera.far',
-    fov: 'camera.fov',
-    'look-controls-enabled': 'look-controls.enabled',
-    near: 'camera.near',
-    'wasd-controls-enabled': 'wasd-controls.enabled',
-    'reverse-mouse-drag': 'look-controls.reverseMouseDrag',
-    zoom: 'camera.zoom'
-  }
-});
-
-},{"../primitives":140}],142:[function(_dereq_,module,exports){
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-
-registerPrimitive('a-collada-model', {
-  mappings: {
-    src: 'collada-model'
-  }
-});
-
-},{"../primitives":140}],143:[function(_dereq_,module,exports){
-var getMeshMixin = _dereq_('../getMeshMixin');
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-
-registerPrimitive('a-cursor', utils.extendDeep({}, getMeshMixin(), {
-  defaultComponents: {
-    cursor: {},
-    geometry: {
-      primitive: 'ring',
-      radiusOuter: 0.016,
-      radiusInner: 0.01,
-      segmentsTheta: 32
-    },
-    material: {
-      color: '#000',
-      shader: 'flat',
-      opacity: 0.8
-    },
-    position: {
-      x: 0,
-      y: 0,
-      z: -1
-    }
-  },
-
-  mappings: {
-    far: 'raycaster.far',
-    fuse: 'cursor.fuse',
-    'fuse-timeout': 'cursor.fuseTimeout',
-    interval: 'raycaster.interval',
-    objects: 'raycaster.objects'
-  }
-}));
-
-},{"../../../utils/":195,"../getMeshMixin":138,"../primitives":140}],144:[function(_dereq_,module,exports){
-var getMeshMixin = _dereq_('../getMeshMixin');
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-
-registerPrimitive('a-curvedimage', utils.extendDeep({}, getMeshMixin(), {
-  defaultComponents: {
-    geometry: {
-      height: 1,
-      primitive: 'cylinder',
-      radius: 2,
-      segmentsRadial: 48,
-      thetaLength: 270,
-      openEnded: true,
-      thetaStart: 0
-    },
-    material: {
-      color: '#FFF',
-      shader: 'flat',
-      side: 'double',
-      transparent: true,
-      repeat: '-1 1'
-    }
-  },
-
-  mappings: {
-    height: 'geometry.height',
-    'open-ended': 'geometry.openEnded',
-    radius: 'geometry.radius',
-    segments: 'geometry.segmentsRadial',
-    start: 'geometry.thetaStart',
-    'theta-length': 'geometry.thetaLength',
-    'theta-start': 'geometry.thetaStart',
-    'width': 'geometry.thetaLength'
-  }
-}));
-
-},{"../../../utils/":195,"../getMeshMixin":138,"../primitives":140}],145:[function(_dereq_,module,exports){
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-
-registerPrimitive('a-gltf-model', {
-  mappings: {
-    src: 'gltf-model'
-  }
-});
-
-},{"../primitives":140}],146:[function(_dereq_,module,exports){
-var getMeshMixin = _dereq_('../getMeshMixin');
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-
-registerPrimitive('a-image', utils.extendDeep({}, getMeshMixin(), {
-  defaultComponents: {
-    geometry: {
-      primitive: 'plane'
-    },
-    material: {
-      color: '#FFF',
-      shader: 'flat',
-      side: 'double',
-      transparent: true
-    }
-  },
-
-  mappings: {
-    height: 'geometry.height',
-    width: 'geometry.width'
-  }
-}));
-
-},{"../../../utils/":195,"../getMeshMixin":138,"../primitives":140}],147:[function(_dereq_,module,exports){
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-
-registerPrimitive('a-light', {
-  defaultComponents: {
-    light: {}
-  },
-
-  mappings: {
-    angle: 'light.angle',
-    color: 'light.color',
-    'ground-color': 'light.groundColor',
-    decay: 'light.decay',
-    distance: 'light.distance',
-    intensity: 'light.intensity',
-    penumbra: 'light.penumbra',
-    type: 'light.type',
-    target: 'light.target'
-  }
-});
-
-},{"../primitives":140}],148:[function(_dereq_,module,exports){
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-
-registerPrimitive('a-link', {
-  defaultComponents: {},
-
-  mappings: {
-    href: 'link.href',
-    image: 'link.image',
-    title: 'link.title'
-  }
-});
-
-},{"../primitives":140}],149:[function(_dereq_,module,exports){
-var meshMixin = _dereq_('../getMeshMixin')();
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-
-registerPrimitive('a-obj-model', utils.extendDeep({}, meshMixin, {
-  defaultComponents: {
-    'obj-model': {}
-  },
-
-  mappings: {
-    src: 'obj-model.obj',
-    mtl: 'obj-model.mtl'
-  }
-}));
-
-},{"../../../utils/":195,"../getMeshMixin":138,"../primitives":140}],150:[function(_dereq_,module,exports){
-var getMeshMixin = _dereq_('../getMeshMixin');
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-var meshPrimitives = _dereq_('./meshPrimitives');
-
-registerPrimitive('a-sky', utils.extendDeep({}, getMeshMixin(), {
-  defaultComponents: {
-    geometry: {
-      primitive: 'sphere',
-      radius: 5000,
-      segmentsWidth: 64,
-      segmentsHeight: 32
-    },
-    material: {
-      color: '#FFF',
-      shader: 'flat',
-      side: 'back',
-      npot: true
-    },
-    scale: '-1 1 1'
-  },
-
-  mappings: utils.extendDeep({}, meshPrimitives['a-sphere'].prototype.mappings)
-}));
-
-},{"../../../utils/":195,"../getMeshMixin":138,"../primitives":140,"./meshPrimitives":155}],151:[function(_dereq_,module,exports){
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-
-registerPrimitive('a-sound', {
-  defaultComponents: {
-    sound: {}
-  },
-
-  mappings: {
-    src: 'sound.src',
-    on: 'sound.on',
-    autoplay: 'sound.autoplay',
-    loop: 'sound.loop',
-    volume: 'sound.volume'
-  }
-});
-
-},{"../primitives":140}],152:[function(_dereq_,module,exports){
-// <a-text> using `definePrimitive` helper.
-var definePrimitive = _dereq_('../primitives').definePrimitive;
-definePrimitive('a-text', {text: {anchor: 'align', width: 5}});
-
-},{"../primitives":140}],153:[function(_dereq_,module,exports){
-var getMeshMixin = _dereq_('../getMeshMixin');
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-
-registerPrimitive('a-video', utils.extendDeep({}, getMeshMixin(), {
-  defaultComponents: {
-    geometry: {
-      primitive: 'plane'
-    },
-    material: {
-      color: '#FFF',
-      shader: 'flat',
-      side: 'double',
-      transparent: true
-    }
-  },
-
-  mappings: {
-    height: 'geometry.height',
-    width: 'geometry.width'
-  }
-}));
-
-},{"../../../utils/":195,"../getMeshMixin":138,"../primitives":140}],154:[function(_dereq_,module,exports){
-var getMeshMixin = _dereq_('../getMeshMixin');
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-
-registerPrimitive('a-videosphere', utils.extendDeep({}, getMeshMixin(), {
-  defaultComponents: {
-    geometry: {
-      primitive: 'sphere',
-      radius: 5000,
-      segmentsWidth: 64,
-      segmentsHeight: 32
-    },
-    material: {
-      color: '#FFF',
-      shader: 'flat',
-      side: 'back',
-      npot: true
-    },
-    scale: '-1 1 1'
-  },
-
-  mappings: {
-    radius: 'geometry.radius',
-    'segments-height': 'geometry.segmentsHeight',
-    'segments-width': 'geometry.segmentsWidth'
-  }
-}));
-
-},{"../../../utils/":195,"../getMeshMixin":138,"../primitives":140}],155:[function(_dereq_,module,exports){
-/**
- * Automated mesh primitive registration.
- */
-var getMeshMixin = _dereq_('../getMeshMixin');
-var geometries = _dereq_('../../../core/geometry').geometries;
-var geometryNames = _dereq_('../../../core/geometry').geometryNames;
-var registerPrimitive = _dereq_('../primitives').registerPrimitive;
-var utils = _dereq_('../../../utils/');
-
-// For testing.
-var meshPrimitives = module.exports = {};
-
-// Generate primitive for each geometry type.
-geometryNames.forEach(function registerMeshPrimitive (geometryName) {
-  var geometry = geometries[geometryName];
-  var geometryHyphened = unCamelCase(geometryName);
-
-  // Generate mappings.
-  var mappings = {};
-  Object.keys(geometry.schema).forEach(function createMapping (property) {
-    mappings[unCamelCase(property)] = 'geometry.' + property;
-  });
-
-  // Register.
-  var tagName = 'a-' + geometryHyphened;
-  var primitive = registerPrimitive(tagName, utils.extendDeep({}, getMeshMixin(), {
-    defaultComponents: {geometry: {primitive: geometryName}},
-    mappings: mappings
-  }));
-  meshPrimitives[tagName] = primitive;
-});
-
-/**
- * camelCase to hyphened-string.
- */
-function unCamelCase (str) {
-  return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
-}
-
-},{"../../../core/geometry":126,"../../../utils/":195,"../getMeshMixin":138,"../primitives":140}],156:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-registerGeometry('box', {
-  schema: {
-    depth: {default: 1, min: 0},
-    height: {default: 1, min: 0},
-    width: {default: 1, min: 0},
-    segmentsHeight: {default: 1, min: 1, max: 20, type: 'int'},
-    segmentsWidth: {default: 1, min: 1, max: 20, type: 'int'},
-    segmentsDepth: {default: 1, min: 1, max: 20, type: 'int'}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.BoxGeometry(
-      data.width, data.height, data.depth,
-      data.segmentsWidth, data.segmentsHeight, data.segmentsDepth);
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],157:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-var degToRad = THREE.Math.degToRad;
-
-registerGeometry('circle', {
-  schema: {
-    radius: {default: 1, min: 0},
-    segments: {default: 32, min: 3, type: 'int'},
-    thetaLength: {default: 360, min: 0},
-    thetaStart: {default: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.CircleGeometry(
-      data.radius, data.segments, degToRad(data.thetaStart), degToRad(data.thetaLength));
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],158:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-var degToRad = THREE.Math.degToRad;
-
-registerGeometry('cone', {
-  schema: {
-    height: {default: 1, min: 0},
-    openEnded: {default: false},
-    radiusBottom: {default: 1, min: 0},
-    radiusTop: {default: 0.01, min: 0},
-    segmentsHeight: {default: 18, min: 1, type: 'int'},
-    segmentsRadial: {default: 36, min: 3, type: 'int'},
-    thetaLength: {default: 360, min: 0},
-    thetaStart: {default: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.CylinderGeometry(
-        data.radiusTop, data.radiusBottom, data.height, data.segmentsRadial,
-        data.segmentsHeight, data.openEnded, degToRad(data.thetaStart),
-        degToRad(data.thetaLength));
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],159:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-var degToRad = THREE.Math.degToRad;
-
-registerGeometry('cylinder', {
-  schema: {
-    height: {default: 1, min: 0},
-    openEnded: {default: false},
-    radius: {default: 1, min: 0},
-    segmentsHeight: {default: 18, min: 1, type: 'int'},
-    segmentsRadial: {default: 36, min: 3, type: 'int'},
-    thetaLength: {default: 360, min: 0},
-    thetaStart: {default: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.CylinderGeometry(
-        data.radius, data.radius, data.height, data.segmentsRadial, data.segmentsHeight,
-        data.openEnded, degToRad(data.thetaStart), degToRad(data.thetaLength));
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],160:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-registerGeometry('dodecahedron', {
-  schema: {
-    detail: {default: 0, min: 0, max: 5, type: 'int'},
-    radius: {default: 1, min: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.DodecahedronGeometry(data.radius, data.detail);
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],161:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-registerGeometry('icosahedron', {
-  schema: {
-    detail: {default: 0, min: 0, max: 5, type: 'int'},
-    radius: {default: 1, min: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.IcosahedronGeometry(data.radius, data.detail);
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],162:[function(_dereq_,module,exports){
-_dereq_('./box.js');
-_dereq_('./circle.js');
-_dereq_('./cone.js');
-_dereq_('./cylinder.js');
-_dereq_('./dodecahedron.js');
-_dereq_('./icosahedron.js');
-_dereq_('./octahedron.js');
-_dereq_('./plane.js');
-_dereq_('./ring.js');
-_dereq_('./sphere.js');
-_dereq_('./tetrahedron.js');
-_dereq_('./torus.js');
-_dereq_('./torusKnot.js');
-_dereq_('./triangle.js');
-
-},{"./box.js":156,"./circle.js":157,"./cone.js":158,"./cylinder.js":159,"./dodecahedron.js":160,"./icosahedron.js":161,"./octahedron.js":163,"./plane.js":164,"./ring.js":165,"./sphere.js":166,"./tetrahedron.js":167,"./torus.js":168,"./torusKnot.js":169,"./triangle.js":170}],163:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-registerGeometry('octahedron', {
-  schema: {
-    detail: {default: 0, min: 0, max: 5, type: 'int'},
-    radius: {default: 1, min: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.OctahedronGeometry(data.radius, data.detail);
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],164:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-registerGeometry('plane', {
-  schema: {
-    height: {default: 1, min: 0},
-    width: {default: 1, min: 0},
-    segmentsHeight: {default: 1, min: 1, max: 20, type: 'int'},
-    segmentsWidth: {default: 1, min: 1, max: 20, type: 'int'}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.PlaneGeometry(data.width, data.height, data.segmentsWidth, data.segmentsHeight);
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],165:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-var degToRad = THREE.Math.degToRad;
-
-registerGeometry('ring', {
-  schema: {
-    radiusInner: {default: 0.8, min: 0},
-    radiusOuter: {default: 1.2, min: 0},
-    segmentsPhi: {default: 10, min: 1, type: 'int'},
-    segmentsTheta: {default: 32, min: 3, type: 'int'},
-    thetaLength: {default: 360, min: 0},
-    thetaStart: {default: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.RingGeometry(
-        data.radiusInner, data.radiusOuter, data.segmentsTheta, data.segmentsPhi,
-        degToRad(data.thetaStart), degToRad(data.thetaLength));
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],166:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-var degToRad = THREE.Math.degToRad;
-
-registerGeometry('sphere', {
-  schema: {
-    radius: {default: 1, min: 0},
-    phiLength: {default: 360},
-    phiStart: {default: 0, min: 0},
-    thetaLength: {default: 180, min: 0},
-    thetaStart: {default: 0},
-    segmentsHeight: {default: 18, min: 2, type: 'int'},
-    segmentsWidth: {default: 36, min: 3, type: 'int'}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.SphereGeometry(
-      data.radius, data.segmentsWidth, data.segmentsHeight, degToRad(data.phiStart),
-      degToRad(data.phiLength), degToRad(data.thetaStart), degToRad(data.thetaLength));
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],167:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-registerGeometry('tetrahedron', {
-  schema: {
-    detail: {default: 0, min: 0, max: 5, type: 'int'},
-    radius: {default: 1, min: 0}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.TetrahedronGeometry(data.radius, data.detail);
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],168:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-var degToRad = THREE.Math.degToRad;
-
-registerGeometry('torus', {
-  schema: {
-    arc: {default: 360},
-    radius: {default: 1, min: 0},
-    radiusTubular: {default: 0.2, min: 0},
-    segmentsRadial: {default: 36, min: 2, type: 'int'},
-    segmentsTubular: {default: 32, min: 3, type: 'int'}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.TorusGeometry(
-      data.radius, data.radiusTubular * 2, data.segmentsRadial, data.segmentsTubular,
-      degToRad(data.arc));
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],169:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-registerGeometry('torusKnot', {
-  schema: {
-    p: {default: 2, min: 1},
-    q: {default: 3, min: 1},
-    radius: {default: 1, min: 0},
-    radiusTubular: {default: 0.2, min: 0},
-    segmentsRadial: {default: 8, min: 3, type: 'int'},
-    segmentsTubular: {default: 100, min: 3, type: 'int'}
-  },
-
-  init: function (data) {
-    this.geometry = new THREE.TorusKnotGeometry(
-      data.radius, data.radiusTubular * 2, data.segmentsTubular, data.segmentsRadial,
-      data.p, data.q);
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],170:[function(_dereq_,module,exports){
-var registerGeometry = _dereq_('../core/geometry').registerGeometry;
-var THREE = _dereq_('../lib/three');
-
-var quaternion = new THREE.Quaternion();
-var rotateVector = new THREE.Vector3(0, 0, 1);
-var uvMinVector = new THREE.Vector2();
-var uvMaxVector = new THREE.Vector2();
-var uvScaleVector = new THREE.Vector2();
-
-registerGeometry('triangle', {
-  schema: {
-    vertexA: {type: 'vec3', default: {x: 0, y: 0.5, z: 0}},
-    vertexB: {type: 'vec3', default: {x: -0.5, y: -0.5, z: 0}},
-    vertexC: {type: 'vec3', default: {x: 0.5, y: -0.5, z: 0}}
-  },
-
-  init: function (data) {
-    var geometry;
-    var normal;
-    var triangle;
-    var uvA;
-    var uvB;
-    var uvC;
-
-    triangle = new THREE.Triangle();
-    triangle.a.set(data.vertexA.x, data.vertexA.y, data.vertexA.z);
-    triangle.b.set(data.vertexB.x, data.vertexB.y, data.vertexB.z);
-    triangle.c.set(data.vertexC.x, data.vertexC.y, data.vertexC.z);
-    normal = triangle.normal();
-
-    // Rotate the 3D triangle to be parallel to XY plane.
-    quaternion.setFromUnitVectors(normal, rotateVector);
-    uvA = triangle.a.clone().applyQuaternion(quaternion);
-    uvB = triangle.b.clone().applyQuaternion(quaternion);
-    uvC = triangle.c.clone().applyQuaternion(quaternion);
-
-    // Compute UVs.
-    // Normalize x/y values of UV so they are within 0 to 1.
-    uvMinVector.set(Math.min(uvA.x, uvB.x, uvC.x), Math.min(uvA.y, uvB.y, uvC.y));
-    uvMaxVector.set(Math.max(uvA.x, uvB.x, uvC.x), Math.max(uvA.y, uvB.y, uvC.y));
-    uvScaleVector.set(0, 0).subVectors(uvMaxVector, uvMinVector);
-    uvA = new THREE.Vector2().subVectors(uvA, uvMinVector).divide(uvScaleVector);
-    uvB = new THREE.Vector2().subVectors(uvB, uvMinVector).divide(uvScaleVector);
-    uvC = new THREE.Vector2().subVectors(uvC, uvMinVector).divide(uvScaleVector);
-
-    geometry = this.geometry = new THREE.Geometry();
-    geometry.vertices.push(triangle.a);
-    geometry.vertices.push(triangle.b);
-    geometry.vertices.push(triangle.c);
-    geometry.faces.push(new THREE.Face3(0, 1, 2, normal));
-    geometry.faceVertexUvs[0] = [[uvA, uvB, uvC]];
-  }
-});
-
-},{"../core/geometry":126,"../lib/three":173}],171:[function(_dereq_,module,exports){
-// Check before the polyfill runs.
-window.hasNativeWebVRImplementation = !!window.navigator.getVRDisplays || !!window.navigator.getVRDevices;
-
-window.WebVRConfig = window.WebVRConfig || {
-  BUFFER_SCALE: 1,
-  CARDBOARD_UI_DISABLED: true,
-  ROTATE_INSTRUCTIONS_DISABLED: true,
-  TOUCH_PANNER_DISABLED: true,
-  MOUSE_KEYBOARD_CONTROLS_DISABLED: true
-};
-
-// WebVR polyfill
-_dereq_('webvr-polyfill');
-
-var utils = _dereq_('./utils/');
-
-var debug = utils.debug;
-var error = debug('A-Frame:error');
-var warn = debug('A-Frame:warn');
-
-if (window.document.currentScript && window.document.currentScript.parentNode !==
-    window.document.head && !window.debug) {
-  warn('Put the A-Frame <script> tag in the <head> of the HTML *before* the scene to ' +
-       'ensure everything for A-Frame is properly registered before they are used from ' +
-       'HTML.');
-}
-
-// Error if not using a server.
-if (window.location.protocol === 'file:') {
-  error(
-    'This HTML file is currently being served via the file:// protocol. ' +
-    'Assets, textures, and models WILL NOT WORK due to cross-origin policy! ' +
-    'Please use a local or hosted server: ' +
-    'https://aframe.io/docs/0.5.0/introduction/getting-started.html#using-a-local-server.');
-}
-
-// Polyfill `Promise`.
-window.Promise = window.Promise || _dereq_('promise-polyfill');
-
-// Workaround for iOS Safari canvas sizing issues in stereo (webvr-polyfill/issues/102).
-// Only for iOS on versions older than 10.
-if (utils.device.isIOSOlderThan10(window.navigator.userAgent)) {
-  window.WebVRConfig.BUFFER_SCALE = 1 / window.devicePixelRatio;
-}
-
-_dereq_('present'); // Polyfill `performance.now()`.
-
-// CSS.
-if (utils.device.isBrowserEnvironment) {
-  _dereq_('./style/aframe.css');
-  _dereq_('./style/rStats.css');
-}
-
-// Required before `AEntity` so that all components are registered.
-var AScene = _dereq_('./core/scene/a-scene').AScene;
-var components = _dereq_('./core/component').components;
-var registerComponent = _dereq_('./core/component').registerComponent;
-var registerGeometry = _dereq_('./core/geometry').registerGeometry;
-var registerPrimitive = _dereq_('./extras/primitives/primitives').registerPrimitive;
-var registerShader = _dereq_('./core/shader').registerShader;
-var registerSystem = _dereq_('./core/system').registerSystem;
-var shaders = _dereq_('./core/shader').shaders;
-var systems = _dereq_('./core/system').systems;
-// Exports THREE to window so three.js can be used without alteration.
-var THREE = window.THREE = _dereq_('./lib/three');
-var TWEEN = window.TWEEN = _dereq_('@tweenjs/tween.js');
-
-var pkg = _dereq_('../package');
-
-_dereq_('./components/index'); // Register standard components.
-_dereq_('./geometries/index'); // Register standard geometries.
-_dereq_('./shaders/index'); // Register standard shaders.
-_dereq_('./systems/index'); // Register standard systems.
-var ANode = _dereq_('./core/a-node');
-var AEntity = _dereq_('./core/a-entity'); // Depends on ANode and core components.
-
-_dereq_('./core/a-animation');
-_dereq_('./core/a-assets');
-_dereq_('./core/a-cubemap');
-_dereq_('./core/a-mixin');
-
-// Extras.
-_dereq_('./extras/components/');
-_dereq_('./extras/primitives/');
-
-console.log('A-Frame Version: 0.7.0 (Date 2018-02-28, Commit #ef96295)');
-console.log('three Version:', pkg.dependencies['three']);
-console.log('WebVR Polyfill Version:', pkg.dependencies['webvr-polyfill']);
-
-module.exports = window.AFRAME = {
-  AComponent: _dereq_('./core/component').Component,
-  AEntity: AEntity,
-  ANode: ANode,
-  AScene: AScene,
-  components: components,
-  geometries: _dereq_('./core/geometry').geometries,
-  registerComponent: registerComponent,
-  registerElement: _dereq_('./core/a-register-element').registerElement,
-  registerGeometry: registerGeometry,
-  registerPrimitive: registerPrimitive,
-  registerShader: registerShader,
-  registerSystem: registerSystem,
-  primitives: {
-    getMeshMixin: _dereq_('./extras/primitives/getMeshMixin'),
-    primitives: _dereq_('./extras/primitives/primitives').primitives
-  },
-  scenes: _dereq_('./core/scene/scenes'),
-  schema: _dereq_('./core/schema'),
-  shaders: shaders,
-  systems: systems,
-  THREE: THREE,
-  TWEEN: TWEEN,
-  utils: utils,
-  version: pkg.version
-};
-
-},{"../package":75,"./components/index":84,"./core/a-animation":118,"./core/a-assets":119,"./core/a-cubemap":120,"./core/a-entity":121,"./core/a-mixin":122,"./core/a-node":123,"./core/a-register-element":124,"./core/component":125,"./core/geometry":126,"./core/scene/a-scene":128,"./core/scene/scenes":131,"./core/schema":133,"./core/shader":134,"./core/system":135,"./extras/components/":136,"./extras/primitives/":139,"./extras/primitives/getMeshMixin":138,"./extras/primitives/primitives":140,"./geometries/index":162,"./lib/three":173,"./shaders/index":175,"./style/aframe.css":180,"./style/rStats.css":181,"./systems/index":184,"./utils/":195,"@tweenjs/tween.js":1,"present":32,"promise-polyfill":33,"webvr-polyfill":60}],172:[function(_dereq_,module,exports){
-window.aframeStats = function (scene) {
-  var _rS = null;
-  var _scene = scene;
-  var _values = {
-    te: {
-      caption: 'Entities'
-    },
-    lt: {
-      caption: 'Load Time'
-    }
-  };
-  var _groups = [ {
-    caption: 'A-Frame',
-    values: [ 'te', 'lt' ]
-  } ];
-
-  function _update () {
-    _rS('te').set(getEntityCount());
-    if (window.performance.getEntriesByName) {
-      _rS('lt').set(window.performance.getEntriesByName('render-started')[0].startTime.toFixed(0));
-    }
-  }
-
-  function getEntityCount () {
-    var elements = _scene.querySelectorAll('*');
-    Array.prototype.slice.call(elements).filter(function (el) {
-      return el.isEntity;
-    });
-    return elements.length;
-  }
-
-  function _start () {}
-
-  function _end () {}
-
-  function _attach (r) {
-    _rS = r;
-  }
-
-  return {
-    update: _update,
-    start: _start,
-    end: _end,
-    attach: _attach,
-    values: _values,
-    groups: _groups,
-    fractions: []
-  };
-};
-
-if (typeof module === 'object') {
-  module.exports = {
-    aframeStats: window.aframeStats
-  };
-}
-
-},{}],173:[function(_dereq_,module,exports){
-(function (global){
-var THREE = global.THREE = _dereq_('three');
-
-// Allow cross-origin images to be loaded.
-
-// This should not be on `THREE.Loader` nor `THREE.ImageUtils`.
-// Must be on `THREE.TextureLoader`.
-if (THREE.TextureLoader) {
-  THREE.TextureLoader.prototype.crossOrigin = 'anonymous';
-}
-
-// This is for images loaded from the model loaders.
-if (THREE.ImageLoader) {
-  THREE.ImageLoader.prototype.crossOrigin = 'anonymous';
-}
-
-// In-memory caching for XHRs (for images, audio files, textures, etc.).
-if (THREE.Cache) {
-  THREE.Cache.enabled = true;
-}
-
-// TODO: Eventually include these only if they are needed by a component.
-_dereq_('three/examples/js/loaders/GLTFLoader');  // THREE.GLTFLoader
-_dereq_('three/examples/js/loaders/OBJLoader');  // THREE.OBJLoader
-_dereq_('three/examples/js/loaders/MTLLoader');  // THREE.MTLLoader
-_dereq_('three/examples/js/loaders/ColladaLoader');  // THREE.ColladaLoader
-
-THREE.ColladaLoader.prototype.crossOrigin = 'anonymous';
-THREE.GLTFLoader.prototype.crossOrigin = 'anonymous';
-THREE.MTLLoader.prototype.crossOrigin = 'anonymous';
-THREE.OBJLoader.prototype.crossOrigin = 'anonymous';
-
-module.exports = THREE;
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-
-},{"three":40,"three/examples/js/loaders/ColladaLoader":41,"three/examples/js/loaders/GLTFLoader":42,"three/examples/js/loaders/MTLLoader":43,"three/examples/js/loaders/OBJLoader":44}],174:[function(_dereq_,module,exports){
-var registerShader = _dereq_('../core/shader').registerShader;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-
-/**
- * Flat shader using THREE.MeshBasicMaterial.
- */
-module.exports.Shader = registerShader('flat', {
-  schema: {
-    color: {type: 'color'},
-    fog: {default: true},
-    height: {default: 256},
-    offset: {type: 'vec2', default: {x: 0, y: 0}},
-    repeat: {type: 'vec2', default: {x: 1, y: 1}},
-    src: {type: 'map'},
-    width: {default: 512},
-    wireframe: {default: false},
-    wireframeLinewidth: {default: 2}
-  },
-
-  /**
-   * Initializes the shader.
-   * Adds a reference from the scene to this entity as the camera.
-   */
-  init: function (data) {
-    this.textureSrc = null;
-    this.material = new THREE.MeshBasicMaterial(getMaterialData(data));
-    utils.material.updateMap(this, data);
-  },
-
-  update: function (data) {
-    this.updateMaterial(data);
-    utils.material.updateMap(this, data);
-  },
-
-  /**
-   * Updating existing material.
-   *
-   * @param {object} data - Material component data.
-   */
-  updateMaterial: function (data) {
-    var material = this.material;
-    data = getMaterialData(data);
-    Object.keys(data).forEach(function (key) {
-      material[key] = data[key];
-    });
-  }
-});
-
-/**
- * Builds and normalize material data, normalizing stuff along the way.
- *
- * @param {object} data - Material data.
- * @returns {object} data - Processed material data.
- */
-function getMaterialData (data) {
-  return {
-    fog: data.fog,
-    color: new THREE.Color(data.color),
-    wireframe: data.wireframe,
-    wireframeLinewidth: data.wireframeLinewidth
-  };
-}
-
-},{"../core/shader":134,"../lib/three":173,"../utils/":195}],175:[function(_dereq_,module,exports){
-_dereq_('./flat');
-_dereq_('./standard');
-_dereq_('./sdf');
-_dereq_('./msdf');
-_dereq_('./ios10hls');
-
-},{"./flat":174,"./ios10hls":176,"./msdf":177,"./sdf":178,"./standard":179}],176:[function(_dereq_,module,exports){
-var registerShader = _dereq_('../core/shader').registerShader;
-
-/**
- * Custom shader for iOS 10 HTTP Live Streaming (HLS).
- * For more information on HLS, see https://datatracker.ietf.org/doc/draft-pantos-http-live-streaming/
- */
-module.exports.Shader = registerShader('ios10hls', {
-  schema: {
-    src: {type: 'map', is: 'uniform'},
-    opacity: {type: 'number', is: 'uniform', default: 1}
-  },
-
-  vertexShader: [
-    'varying vec2 vUV;',
-    'void main(void) {',
-    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',
-    '  vUV = uv;',
-    '}'
-  ].join('\n'),
-
-  fragmentShader: [
-    'uniform sampler2D src;',
-    'uniform float opacity;',
-    'varying vec2 vUV;',
-    'void main() {',
-    '  vec2 offset = vec2(0, 0);',
-    '  vec2 repeat = vec2(1, 1);',
-    '  vec4 color = texture2D(src, vec2(vUV.x / repeat.x + offset.x, (1.0 - vUV.y) / repeat.y + offset.y)).bgra;',
-    '  gl_FragColor = vec4(color.rgb, opacity);',
-    '}'
-  ].join('\n')
-});
-
-
-},{"../core/shader":134}],177:[function(_dereq_,module,exports){
-var registerShader = _dereq_('../core/shader').registerShader;
-
-/**
- * Multi-channel signed distance field.
- * Used by text component.
- */
-module.exports.Shader = registerShader('msdf', {
-  schema: {
-    alphaTest: {type: 'number', is: 'uniform', default: 0.5},
-    color: {type: 'color', is: 'uniform', default: 'white'},
-    map: {type: 'map', is: 'uniform'},
-    opacity: {type: 'number', is: 'uniform', default: 1.0}
-  },
-
-  raw: true,
-
-  vertexShader: [
-    'attribute vec2 uv;',
-    'attribute vec3 position;',
-    'uniform mat4 projectionMatrix;',
-    'uniform mat4 modelViewMatrix;',
-    'varying vec2 vUV;',
-    'void main(void) {',
-    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',
-    '  vUV = uv;',
-    '}'
-  ].join('\n'),
-
-  fragmentShader: [
-    '#ifdef GL_OES_standard_derivatives',
-    '#extension GL_OES_standard_derivatives: enable',
-    '#endif',
-
-    'precision highp float;',
-    // FIXME: Experimentally determined constants.
-    '#define BIG_ENOUGH 0.001',
-    '#define MODIFIED_ALPHATEST (0.02 * isBigEnough / BIG_ENOUGH)',
-    '#define ALL_SMOOTH 0.4',
-    '#define ALL_ROUGH 0.02',
-    '#define DISCARD_ALPHA (alphaTest / (2.2 - 1.2 * ratio))',
-    'uniform sampler2D map;',
-    'uniform vec3 color;',
-    'uniform float opacity;',
-    'uniform float alphaTest;',
-    'varying vec2 vUV;',
-
-    'float median(float r, float g, float b) {',
-    '  return max(min(r, g), min(max(r, g), b));',
-    '}',
-    'void main() {',
-    '  vec3 sample = 1.0 - texture2D(map, vUV).rgb;',
-    '  float sigDist = median(sample.r, sample.g, sample.b) - 0.5;',
-    '  float alpha = clamp(sigDist/fwidth(sigDist) + 0.5, 0.0, 1.0);',
-    '  float dscale = 0.353505;',
-    '  vec2 duv = dscale * (dFdx(vUV) + dFdy(vUV));',
-    '  float isBigEnough = max(abs(duv.x), abs(duv.y));',
-    // When texel is too small, blend raw alpha value rather than supersampling.
-    // FIXME: Experimentally determined constant.
-    '  if (isBigEnough > BIG_ENOUGH) {',
-    '    float ratio = BIG_ENOUGH / isBigEnough;',
-    '    alpha = ratio * alpha + (1.0 - ratio) * (sigDist + 0.5);',
-    '  }',
-    // When texel is big enough, do standard alpha test.
-    // FIXME: Experimentally determined constant.
-    // Looks much better if we *don't* do this, but do we get Z fighting?
-    '  if (isBigEnough <= BIG_ENOUGH && alpha < alphaTest) { discard; return; }',
-    // Else, do modified alpha test.
-    // FIXME: Experimentally determined constant.
-    '  if (alpha < alphaTest * MODIFIED_ALPHATEST) { discard; return; }',
-    '  gl_FragColor = vec4(color.xyz, alpha * opacity);',
-    '}'
-  ].join('\n')
-});
-
-},{"../core/shader":134}],178:[function(_dereq_,module,exports){
-var registerShader = _dereq_('../core/shader').registerShader;
-
-/**
- * Signed distance field.
- * Used by text component.
- */
-module.exports.Shader = registerShader('sdf', {
-  schema: {
-    alphaTest: {type: 'number', is: 'uniform', default: 0.5},
-    color: {type: 'color', is: 'uniform', default: 'white'},
-    map: {type: 'map', is: 'uniform'},
-    opacity: {type: 'number', is: 'uniform', default: 1.0}
-  },
-
-  raw: true,
-
-  vertexShader: [
-    'attribute vec2 uv;',
-    'attribute vec3 position;',
-    'uniform mat4 projectionMatrix;',
-    'uniform mat4 modelViewMatrix;',
-    'varying vec2 vUV;',
-    'void main(void) {',
-    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',
-    '  vUV = uv;',
-    '}'
-  ].join('\n'),
-
-  fragmentShader: [
-    '#ifdef GL_OES_standard_derivatives',
-    '#extension GL_OES_standard_derivatives: enable',
-    '#endif',
-
-    'precision highp float;',
-    // FIXME: experimentally determined constants
-    '#define BIG_ENOUGH 0.001',
-    '#define MODIFIED_ALPHATEST (0.02 * isBigEnough / BIG_ENOUGH)',
-    '#define ALL_SMOOTH 0.4',
-    '#define ALL_ROUGH 0.02',
-    '#define DISCARD_ALPHA (alphaTest / (2.2 - 1.2 * ratio))',
-    'uniform sampler2D map;',
-    'uniform vec3 color;',
-    'uniform float opacity;',
-    'uniform float alphaTest;',
-    'varying vec2 vUV;',
-    '#ifdef GL_OES_standard_derivatives',
-    'float contour(float width, float value) {',
-    '  return smoothstep(0.5 - value, 0.5 + value, width);',
-    '}',
-    '#else',
-    'float aastep(float value, float afwidth) {',
-    '  return smoothstep(0.5 - afwidth, 0.5 + afwidth, value);',
-    '}',
-    '#endif',
-    'void main() {',
-    '#ifdef GL_OES_standard_derivatives',
-    // when we have derivatives and can get texel size etc., that allows supersampling etc.
-    '  vec2 uv = vUV;',
-    '  vec4 texColor = texture2D(map, uv);',
-    '  float dist = texColor.a;',
-    '  float width = fwidth(dist);',
-    '  float alpha = contour(dist, width);',
-    '  float dscale = 0.353505;',
-    '  vec2 duv = dscale * (dFdx(uv) + dFdy(uv));',
-    '  float isBigEnough = max(abs(duv.x), abs(duv.y));',
-    // when texel is too small, blend raw alpha value rather than supersampling etc.
-    // FIXME: experimentally determined constant
-    '  if (isBigEnough > BIG_ENOUGH) {',
-    '    float ratio = BIG_ENOUGH / isBigEnough;',
-    '    alpha = ratio * alpha + (1.0 - ratio) * dist;',
-    '  }',
-    // otherwise do weighted supersampling
-    // FIXME: why this weighting?
-    '  else if (isBigEnough <= BIG_ENOUGH) {',
-    '    vec4 box = vec4 (uv - duv, uv + duv);',
-    '    alpha = (alpha + 0.5 * (',
-    '      contour(texture2D(map, box.xy).a, width)',
-    '      + contour(texture2D(map, box.zw).a, width)',
-    '      + contour(texture2D(map, box.xw).a, width)',
-    '      + contour(texture2D(map, box.zy).a, width)',
-    '    )) / 3.0;',
-    '  }',
-    // when texel is big enough, do standard alpha test
-    // FIXME: experimentally determined constant
-    // looks much better if we DON'T do this, but do we get Z fighting etc.?
-    '  if (isBigEnough <= BIG_ENOUGH && alpha < alphaTest) { discard; return; }',
-    // else do modified alpha test
-    // FIXME: experimentally determined constant
-    '  if (alpha < alphaTest * MODIFIED_ALPHATEST) { discard; return; }',
-    '#else',
-    '  vec4 texColor = texture2D(map, vUV);',
-    '  float value = texColor.a;',
-    // when we don't have derivatives, use approximations
-    // FIXME: if we understood font pixel dimensions, this could probably be improved
-    '  float afwidth = (1.0 / 32.0) * (1.4142135623730951 / (2.0 * gl_FragCoord.w));',
-    '  float alpha = aastep(value, afwidth);',
-    // use gl_FragCoord.w to guess when we should blend
-    // FIXME: if we understood font pixel dimensions, this could probably be improved
-    '  float ratio = (gl_FragCoord.w >= ALL_SMOOTH) ? 1.0 : (gl_FragCoord.w < ALL_ROUGH) ? 0.0 : (gl_FragCoord.w - ALL_ROUGH) / (ALL_SMOOTH - ALL_ROUGH);',
-    '  if (alpha < alphaTest) { if (ratio >= 1.0) { discard; return; } alpha = 0.0; }',
-    '  alpha = alpha * ratio + (1.0 - ratio) * value;',
-    '  if (ratio < 1.0)',
-    '    if (alpha <= DISCARD_ALPHA) { discard; return; }',
-    '#endif',
-    '  gl_FragColor = vec4(color, opacity * alpha);',
-    '}'
-  ].join('\n')
-});
-
-},{"../core/shader":134}],179:[function(_dereq_,module,exports){
-var registerShader = _dereq_('../core/shader').registerShader;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-
-var CubeLoader = new THREE.CubeTextureLoader();
-var texturePromises = {};
-
-/**
- * Standard (physically-based) shader using THREE.MeshStandardMaterial.
- */
-module.exports.Shader = registerShader('standard', {
-  schema: {
-    ambientOcclusionMap: {type: 'map'},
-    ambientOcclusionMapIntensity: {default: 1},
-    ambientOcclusionTextureOffset: {type: 'vec2'},
-    ambientOcclusionTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},
-
-    color: {type: 'color'},
-
-    displacementMap: {type: 'map'},
-    displacementScale: {default: 1},
-    displacementBias: {default: 0.5},
-    displacementTextureOffset: {type: 'vec2'},
-    displacementTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},
-    emissive: {type: 'color', default: '#000'},
-    emissiveIntensity: {default: 1},
-    envMap: {default: ''},
-
-    fog: {default: true},
-    height: {default: 256},
-
-    metalness: {default: 0.0, min: 0.0, max: 1.0},
-    metalnessMap: {type: 'map'},
-    metalnessTextureOffset: {type: 'vec2'},
-    metalnessTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},
-
-    normalMap: {type: 'map'},
-    normalScale: {type: 'vec2', default: {x: 1, y: 1}},
-    normalTextureOffset: {type: 'vec2'},
-    normalTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},
-
-    offset: {type: 'vec2', default: {x: 0, y: 0}},
-    repeat: {type: 'vec2', default: {x: 1, y: 1}},
-
-    roughness: {default: 0.5, min: 0.0, max: 1.0},
-    roughnessMap: {type: 'map'},
-    roughnessTextureOffset: {type: 'vec2'},
-    roughnessTextureRepeat: {type: 'vec2', default: {x: 1, y: 1}},
-
-    sphericalEnvMap: {type: 'map'},
-    src: {type: 'map'},
-    width: {default: 512},
-    wireframe: {default: false},
-    wireframeLinewidth: {default: 2}
-  },
-
-  /**
-   * Initializes the shader.
-   * Adds a reference from the scene to this entity as the camera.
-   */
-  init: function (data) {
-    this.material = new THREE.MeshStandardMaterial(getMaterialData(data));
-    utils.material.updateMap(this, data);
-    if (data.normalMap) { utils.material.updateDistortionMap('normal', this, data); }
-    if (data.displacementMap) { utils.material.updateDistortionMap('displacement', this, data); }
-    if (data.ambientOcclusionMap) { utils.material.updateDistortionMap('ambientOcclusion', this, data); }
-    if (data.metalnessMap) { utils.material.updateDistortionMap('metalness', this, data); }
-    if (data.roughnessMap) { utils.material.updateDistortionMap('roughness', this, data); }
-    this.updateEnvMap(data);
-  },
-
-  update: function (data) {
-    this.updateMaterial(data);
-    utils.material.updateMap(this, data);
-    if (data.normalMap) { utils.material.updateDistortionMap('normal', this, data); }
-    if (data.displacementMap) { utils.material.updateDistortionMap('displacement', this, data); }
-    if (data.ambientOcclusionMap) { utils.material.updateDistortionMap('ambientOcclusion', this, data); }
-    if (data.metalnessMap) { utils.material.updateDistortionMap('metalness', this, data); }
-    if (data.roughnessMap) { utils.material.updateDistortionMap('roughness', this, data); }
-    this.updateEnvMap(data);
-  },
-
-  /**
-   * Updating existing material.
-   *
-   * @param {object} data - Material component data.
-   * @returns {object} Material.
-   */
-  updateMaterial: function (data) {
-    var material = this.material;
-    data = getMaterialData(data);
-    Object.keys(data).forEach(function (key) {
-      material[key] = data[key];
-    });
-  },
-
-  /**
-   * Handle environment cubemap. Textures are cached in texturePromises.
-   */
-  updateEnvMap: function (data) {
-    var self = this;
-    var material = this.material;
-    var envMap = data.envMap;
-    var sphericalEnvMap = data.sphericalEnvMap;
-
-    // No envMap defined or already loading.
-    if ((!envMap && !sphericalEnvMap) || this.isLoadingEnvMap) {
-      material.envMap = null;
-      material.needsUpdate = true;
-      return;
-    }
-    this.isLoadingEnvMap = true;
-
-    // if a spherical env map is defined then use it.
-    if (sphericalEnvMap) {
-      this.el.sceneEl.systems.material.loadTexture(sphericalEnvMap, {src: sphericalEnvMap}, function textureLoaded (texture) {
-        self.isLoadingEnvMap = false;
-        texture.mapping = THREE.SphericalReflectionMapping;
-        material.envMap = texture;
-        utils.material.handleTextureEvents(self.el, texture);
-        material.needsUpdate = true;
-      });
-      return;
-    }
-
-    // Another material is already loading this texture. Wait on promise.
-    if (texturePromises[envMap]) {
-      texturePromises[envMap].then(function (cube) {
-        self.isLoadingEnvMap = false;
-        material.envMap = cube;
-        utils.material.handleTextureEvents(self.el, cube);
-        material.needsUpdate = true;
-      });
-      return;
-    }
-
-    // Material is first to load this texture. Load and resolve texture.
-    texturePromises[envMap] = new Promise(function (resolve) {
-      utils.srcLoader.validateCubemapSrc(envMap, function loadEnvMap (urls) {
-        CubeLoader.load(urls, function (cube) {
-          // Texture loaded.
-          self.isLoadingEnvMap = false;
-          material.envMap = cube;
-          utils.material.handleTextureEvents(self.el, cube);
-          resolve(cube);
-        });
-      });
-    });
-  }
-});
-
-/**
- * Builds and normalize material data, normalizing stuff along the way.
- *
- * @param {object} data - Material data.
- * @returns {object} data - Processed material data.
- */
-function getMaterialData (data) {
-  var newData = {
-    color: new THREE.Color(data.color),
-    emissive: new THREE.Color(data.emissive),
-    emissiveIntensity: data.emissiveIntensity,
-    fog: data.fog,
-    metalness: data.metalness,
-    roughness: data.roughness,
-    wireframe: data.wireframe,
-    wireframeLinewidth: data.wireframeLinewidth
-  };
-
-  if (data.normalMap) { newData.normalScale = data.normalScale; }
-
-  if (data.ambientOcclusionMap) { newData.aoMapIntensity = data.ambientOcclusionMapIntensity; }
-
-  if (data.displacementMap) {
-    newData.displacementScale = data.displacementScale;
-    newData.displacementBias = data.displacementBias;
-  }
-
-  return newData;
-}
-
-},{"../core/shader":134,"../lib/three":173,"../utils/":195}],180:[function(_dereq_,module,exports){
-var css = ".a-html{bottom:0;left:0;position:fixed;right:0;top:0;--caca:0}.a-body{height:100%;margin:0;overflow:hidden;padding:0;width:100%}:-webkit-full-screen{background-color:transparent}.a-hidden{display:none!important}.a-canvas{height:100%;left:0;position:absolute;top:0;width:100%}.a-canvas.a-grab-cursor:hover{cursor:grab;cursor:-moz-grab;cursor:-webkit-grab}.a-canvas.a-grab-cursor:active,.a-grabbing{cursor:grabbing;cursor:-moz-grabbing;cursor:-webkit-grabbing}// Class is removed when doing <a-scene embedded>. a-scene.fullscreen .a-canvas{width:100%!important;height:100%!important;top:0!important;left:0!important;right:0!important;bottom:0!important;z-index:999999!important;position:fixed!important}.a-inspector-loader{background-color:#ed3160;position:fixed;left:3px;top:3px;padding:6px 10px;color:#fff;text-decoration:none;font-size:12px;font-family:Roboto,sans-serif;text-align:center;z-index:99999;width:204px}@keyframes dots-1{from{opacity:0}25%{opacity:1}}@keyframes dots-2{from{opacity:0}50%{opacity:1}}@keyframes dots-3{from{opacity:0}75%{opacity:1}}@-webkit-keyframes dots-1{from{opacity:0}25%{opacity:1}}@-webkit-keyframes dots-2{from{opacity:0}50%{opacity:1}}@-webkit-keyframes dots-3{from{opacity:0}75%{opacity:1}}.a-inspector-loader .dots span{animation:dots-1 2s infinite steps(1);-webkit-animation:dots-1 2s infinite steps(1)}.a-inspector-loader .dots span:first-child+span{animation-name:dots-2;-webkit-animation-name:dots-2}.a-inspector-loader .dots span:first-child+span+span{animation-name:dots-3;-webkit-animation-name:dots-3}a-scene{display:block;position:relative;height:100%;width:100%}a-assets,a-scene audio,a-scene img,a-scene video{display:none}.a-enter-vr-modal,.a-orientation-modal{font-family:Consolas,Andale Mono,Courier New,monospace}.a-enter-vr-modal a{border-bottom:1px solid #fff;padding:2px 0;text-decoration:none;transition:.1s color ease-in}.a-enter-vr-modal a:hover{background-color:#fff;color:#111;padding:2px 4px;position:relative;left:-4px}.a-enter-vr{font-family:sans-serif,monospace;font-size:13px;width:100%;font-weight:200;line-height:16px;position:absolute;right:20px;bottom:20px}.a-enter-vr.embedded{right:5px;bottom:5px}.a-enter-vr-button,.a-enter-vr-modal,.a-enter-vr-modal a{color:#fff}.a-enter-vr-button{background:url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20245.82%20141.73%22%3E%3Cdefs%3E%3Cstyle%3E.a%7Bfill%3A%23fff%3Bfill-rule%3Aevenodd%3B%7D%3C%2Fstyle%3E%3C%2Fdefs%3E%3Ctitle%3Emask%3C%2Ftitle%3E%3Cpath%20class%3D%22a%22%20d%3D%22M175.56%2C111.37c-22.52%2C0-40.77-18.84-40.77-42.07S153%2C27.24%2C175.56%2C27.24s40.77%2C18.84%2C40.77%2C42.07S198.08%2C111.37%2C175.56%2C111.37ZM26.84%2C69.31c0-23.23%2C18.25-42.07%2C40.77-42.07s40.77%2C18.84%2C40.77%2C42.07-18.26%2C42.07-40.77%2C42.07S26.84%2C92.54%2C26.84%2C69.31ZM27.27%2C0C11.54%2C0%2C0%2C12.34%2C0%2C28.58V110.9c0%2C16.24%2C11.54%2C30.83%2C27.27%2C30.83H99.57c2.17%2C0%2C4.19-1.83%2C5.4-3.7L116.47%2C118a8%2C8%2C0%2C0%2C1%2C12.52-.18l11.51%2C20.34c1.2%2C1.86%2C3.22%2C3.61%2C5.39%2C3.61h72.29c15.74%2C0%2C27.63-14.6%2C27.63-30.83V28.58C245.82%2C12.34%2C233.93%2C0%2C218.19%2C0H27.27Z%22%2F%3E%3C%2Fsvg%3E) 50% 50%/70% 70% no-repeat rgba(0,0,0,.35);border:0;bottom:0;cursor:pointer;min-width:50px;min-height:30px;padding-right:5%;padding-top:4%;position:absolute;right:0;transition:background-color .05s ease;-webkit-transition:background-color .05s ease;z-index:9999}.a-enter-vr-button:active,.a-enter-vr-button:hover{background-color:#666}[data-a-enter-vr-no-webvr] .a-enter-vr-button{border-color:#666;opacity:.65}[data-a-enter-vr-no-webvr] .a-enter-vr-button:active,[data-a-enter-vr-no-webvr] .a-enter-vr-button:hover{background-color:rgba(0,0,0,.35);cursor:not-allowed}.a-enter-vr-modal{background-color:#666;border-radius:0;display:none;min-height:32px;margin-right:70px;padding:9px;width:280px;right:2%;position:absolute}.a-enter-vr-modal:after{border-bottom:10px solid transparent;border-left:10px solid #666;border-top:10px solid transparent;display:inline-block;content:'';position:absolute;right:-5px;top:5px;width:0;height:0}.a-enter-vr-modal a,.a-enter-vr-modal p{display:inline}.a-enter-vr-modal p{margin:0}.a-enter-vr-modal p:after{content:' '}[data-a-enter-vr-no-headset].a-enter-vr:hover .a-enter-vr-modal,[data-a-enter-vr-no-webvr].a-enter-vr:hover .a-enter-vr-modal{display:block}.a-orientation-modal{background:url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%20version%3D%221.1%22%20x%3D%220px%22%20y%3D%220px%22%20viewBox%3D%220%200%2090%2090%22%20enable-background%3D%22new%200%200%2090%2090%22%20xml%3Aspace%3D%22preserve%22%3E%3Cpolygon%20points%3D%220%2C0%200%2C0%200%2C0%20%22%3E%3C/polygon%3E%3Cg%3E%3Cpath%20d%3D%22M71.545%2C48.145h-31.98V20.743c0-2.627-2.138-4.765-4.765-4.765H18.456c-2.628%2C0-4.767%2C2.138-4.767%2C4.765v42.789%20%20%20c0%2C2.628%2C2.138%2C4.766%2C4.767%2C4.766h5.535v0.959c0%2C2.628%2C2.138%2C4.765%2C4.766%2C4.765h42.788c2.628%2C0%2C4.766-2.137%2C4.766-4.765V52.914%20%20%20C76.311%2C50.284%2C74.173%2C48.145%2C71.545%2C48.145z%20M18.455%2C16.935h16.344c2.1%2C0%2C3.808%2C1.708%2C3.808%2C3.808v27.401H37.25V22.636%20%20%20c0-0.264-0.215-0.478-0.479-0.478H16.482c-0.264%2C0-0.479%2C0.214-0.479%2C0.478v36.585c0%2C0.264%2C0.215%2C0.478%2C0.479%2C0.478h7.507v7.644%20%20%20h-5.534c-2.101%2C0-3.81-1.709-3.81-3.81V20.743C14.645%2C18.643%2C16.354%2C16.935%2C18.455%2C16.935z%20M16.96%2C23.116h19.331v25.031h-7.535%20%20%20c-2.628%2C0-4.766%2C2.139-4.766%2C4.768v5.828h-7.03V23.116z%20M71.545%2C73.064H28.757c-2.101%2C0-3.81-1.708-3.81-3.808V52.914%20%20%20c0-2.102%2C1.709-3.812%2C3.81-3.812h42.788c2.1%2C0%2C3.809%2C1.71%2C3.809%2C3.812v16.343C75.354%2C71.356%2C73.645%2C73.064%2C71.545%2C73.064z%22%3E%3C/path%3E%3Cpath%20d%3D%22M28.919%2C58.424c-1.466%2C0-2.659%2C1.193-2.659%2C2.66c0%2C1.466%2C1.193%2C2.658%2C2.659%2C2.658c1.468%2C0%2C2.662-1.192%2C2.662-2.658%20%20%20C31.581%2C59.617%2C30.387%2C58.424%2C28.919%2C58.424z%20M28.919%2C62.786c-0.939%2C0-1.703-0.764-1.703-1.702c0-0.939%2C0.764-1.704%2C1.703-1.704%20%20%20c0.94%2C0%2C1.705%2C0.765%2C1.705%2C1.704C30.623%2C62.022%2C29.858%2C62.786%2C28.919%2C62.786z%22%3E%3C/path%3E%3Cpath%20d%3D%22M69.654%2C50.461H33.069c-0.264%2C0-0.479%2C0.215-0.479%2C0.479v20.288c0%2C0.264%2C0.215%2C0.478%2C0.479%2C0.478h36.585%20%20%20c0.263%2C0%2C0.477-0.214%2C0.477-0.478V50.939C70.131%2C50.676%2C69.917%2C50.461%2C69.654%2C50.461z%20M69.174%2C51.417V70.75H33.548V51.417H69.174z%22%3E%3C/path%3E%3Cpath%20d%3D%22M45.201%2C30.296c6.651%2C0%2C12.233%2C5.351%2C12.551%2C11.977l-3.033-2.638c-0.193-0.165-0.507-0.142-0.675%2C0.048%20%20%20c-0.174%2C0.198-0.153%2C0.501%2C0.045%2C0.676l3.883%2C3.375c0.09%2C0.075%2C0.198%2C0.115%2C0.312%2C0.115c0.141%2C0%2C0.273-0.061%2C0.362-0.166%20%20%20l3.371-3.877c0.173-0.2%2C0.151-0.502-0.047-0.675c-0.194-0.166-0.508-0.144-0.676%2C0.048l-2.592%2C2.979%20%20%20c-0.18-3.417-1.629-6.605-4.099-9.001c-2.538-2.461-5.877-3.817-9.404-3.817c-0.264%2C0-0.479%2C0.215-0.479%2C0.479%20%20%20C44.72%2C30.083%2C44.936%2C30.296%2C45.201%2C30.296z%22%3E%3C/path%3E%3C/g%3E%3C/svg%3E) center/50% 50% no-repeat rgba(244,244,244,1);bottom:0;font-size:14px;font-weight:600;left:0;line-height:20px;right:0;position:fixed;top:0;z-index:9999999}.a-orientation-modal:after{color:#666;content:\"Insert phone into Cardboard holder.\";display:block;position:absolute;text-align:center;top:70%;transform:translateY(-70%);width:100%}.a-orientation-modal button{background:url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20xmlns%3Axlink%3D%22http%3A//www.w3.org/1999/xlink%22%20version%3D%221.1%22%20x%3D%220px%22%20y%3D%220px%22%20viewBox%3D%220%200%20100%20100%22%20enable-background%3D%22new%200%200%20100%20100%22%20xml%3Aspace%3D%22preserve%22%3E%3Cpath%20fill%3D%22%23000000%22%20d%3D%22M55.209%2C50l17.803-17.803c1.416-1.416%2C1.416-3.713%2C0-5.129c-1.416-1.417-3.713-1.417-5.129%2C0L50.08%2C44.872%20%20L32.278%2C27.069c-1.416-1.417-3.714-1.417-5.129%2C0c-1.417%2C1.416-1.417%2C3.713%2C0%2C5.129L44.951%2C50L27.149%2C67.803%20%20c-1.417%2C1.416-1.417%2C3.713%2C0%2C5.129c0.708%2C0.708%2C1.636%2C1.062%2C2.564%2C1.062c0.928%2C0%2C1.856-0.354%2C2.564-1.062L50.08%2C55.13l17.803%2C17.802%20%20c0.708%2C0.708%2C1.637%2C1.062%2C2.564%2C1.062s1.856-0.354%2C2.564-1.062c1.416-1.416%2C1.416-3.713%2C0-5.129L55.209%2C50z%22%3E%3C/path%3E%3C/svg%3E) no-repeat;border:none;height:50px;text-indent:-9999px;width:50px}"; (_dereq_("browserify-css").createStyle(css, { "href": "src/style/aframe.css"})); module.exports = css;
-},{"browserify-css":5}],181:[function(_dereq_,module,exports){
-var css = ".rs-base{background-color:#333;color:#fafafa;border-radius:0;font:10px monospace;left:5px;line-height:1em;opacity:.85;overflow:hidden;padding:10px;position:fixed;top:5px;width:300px;z-index:10000}.rs-base div.hidden{display:none}.rs-base h1{color:#fff;cursor:pointer;font-size:1.4em;font-weight:300;margin:0 0 5px;padding:0}.rs-group{display:-webkit-box;display:-webkit-flex;display:flex;-webkit-flex-direction:column-reverse;flex-direction:column-reverse;margin-bottom:5px}.rs-group:last-child{margin-bottom:0}.rs-counter-base{align-items:center;display:-webkit-box;display:-webkit-flex;display:flex;height:10px;-webkit-justify-content:space-between;justify-content:space-between;margin:2px 0}.rs-counter-base.alarm{color:#b70000;text-shadow:0 0 0 #b70000,0 0 1px #fff,0 0 1px #fff,0 0 2px #fff,0 0 2px #fff,0 0 3px #fff,0 0 3px #fff,0 0 4px #fff,0 0 4px #fff}.rs-counter-id{font-weight:300;-webkit-box-ordinal-group:0;-webkit-order:0;order:0;width:54px}.rs-counter-value{font-weight:300;-webkit-box-ordinal-group:1;-webkit-order:1;order:1;text-align:right;width:35px}.rs-canvas{-webkit-box-ordinal-group:2;-webkit-order:2;order:2}@media (min-width:480px){.rs-base{left:20px;top:20px}}"; (_dereq_("browserify-css").createStyle(css, { "href": "src/style/rStats.css"})); module.exports = css;
-},{"browserify-css":5}],182:[function(_dereq_,module,exports){
-var bind = _dereq_('../utils/bind');
-var constants = _dereq_('../constants/');
-var registerSystem = _dereq_('../core/system').registerSystem;
-
-var DEFAULT_CAMERA_ATTR = 'data-aframe-default-camera';
-
-/**
- * Camera system. Manages which camera is active among multiple cameras in scene.
- *
- * @member {object} activeCameraEl - Active camera entity.
- */
-module.exports.System = registerSystem('camera', {
-  init: function () {
-    this.activeCameraEl = null;
-    // Wait for all entities to fully load before checking for existence of camera.
-    // Since entities wait for <a-assets> to load, any cameras attaching to the scene
-    // will do so asynchronously.
-    this.sceneEl.addEventListener('loaded', bind(this.setupDefaultCamera, this));
-  },
-
-  /**
-   * Create a default camera if user has not added one during the initial scene traversal.
-   *
-   * Default camera offset height is at average eye level (~1.6m).
-   */
-  setupDefaultCamera: function () {
-    var sceneEl = this.sceneEl;
-    var defaultCameraEl;
-
-    // Camera already defined or the one defined it is an spectator one.
-    if (sceneEl.camera && !sceneEl.camera.el.getAttribute('camera').spectator) {
-      sceneEl.emit('camera-ready', {cameraEl: sceneEl.camera.el});
-      return;
-    }
-
-    // Set up default camera.
-    defaultCameraEl = document.createElement('a-entity');
-    defaultCameraEl.setAttribute('camera', {active: true});
-    defaultCameraEl.setAttribute('wasd-controls', '');
-    defaultCameraEl.setAttribute('look-controls', '');
-    defaultCameraEl.setAttribute(constants.AFRAME_INJECTED, '');
-    defaultCameraEl.setAttribute('position', {
-      x: 0,
-      y: constants.DEFAULT_CAMERA_HEIGHT,
-      z: 0
-    });
-    sceneEl.appendChild(defaultCameraEl);
-    sceneEl.addEventListener('enter-vr', this.removeDefaultOffset);
-    sceneEl.addEventListener('exit-vr', this.addDefaultOffset);
-    sceneEl.emit('camera-ready', {cameraEl: defaultCameraEl});
-  },
-
-  /**
-   * Set a different active camera.
-   * When we choose a (sort of) random scene camera as the replacement, set its `active` to
-   * true. The camera component will call `setActiveCamera` and handle passing the torch to
-   * the new camera.
-   */
-  disableActiveCamera: function () {
-    var cameraEls = this.sceneEl.querySelectorAll('[camera]');
-    var newActiveCameraEl = cameraEls[cameraEls.length - 1];
-    newActiveCameraEl.setAttribute('camera', 'active', true);
-  },
-
-  /**
-   * Set active camera to be used by renderer.
-   * Removes the default camera (if present).
-   * Disables all other cameras in the scene.
-   *
-   * @param {Element} newCameraEl - Entity with camera component.
-   */
-  setActiveCamera: function (newCameraEl) {
-    var cameraEl;
-    var cameraEls;
-    var i;
-    var newCamera;
-    var previousCamera = this.activeCameraEl;
-    var sceneEl = this.sceneEl;
-
-    // Same camera.
-    newCamera = newCameraEl.getObject3D('camera');
-    if (!newCamera || newCameraEl === this.activeCameraEl) { return; }
-
-    // Grab the default camera.
-    var defaultCameraWrapper = sceneEl.querySelector('[' + DEFAULT_CAMERA_ATTR + ']');
-    var defaultCameraEl = defaultCameraWrapper &&
-                          defaultCameraWrapper.querySelector('[camera]');
-
-    // Remove default camera if new camera is not the default camera.
-    if (newCameraEl !== defaultCameraEl) { removeDefaultCamera(sceneEl); }
-
-    // Make new camera active.
-    this.activeCameraEl = newCameraEl;
-    this.activeCameraEl.play();
-    sceneEl.camera = newCamera;
-
-    // Disable current camera
-    if (previousCamera) {
-      previousCamera.setAttribute('camera', 'active', false);
-    }
-
-    // Disable other cameras in the scene
-    cameraEls = sceneEl.querySelectorAll('[camera]');
-    for (i = 0; i < cameraEls.length; i++) {
-      cameraEl = cameraEls[i];
-      if (!cameraEl.isEntity || newCameraEl === cameraEl) { continue; }
-      cameraEl.setAttribute('camera', 'active', false);
-      cameraEl.pause();
-    }
-    sceneEl.emit('camera-set-active', {cameraEl: newCameraEl});
-  },
-
-  /**
-   * Set spectator camera to render the scene on a 2D display.
-   *
-   * @param {Element} newCameraEl - Entity with camera component.
-   */
-  setSpectatorCamera: function (newCameraEl) {
-    var newCamera;
-    var previousCamera = this.spectatorCameraEl;
-    var sceneEl = this.sceneEl;
-    var spectatorCameraEl;
-
-    // Same camera.
-    newCamera = newCameraEl.getObject3D('camera');
-    if (!newCamera || newCameraEl === this.spectatorCameraEl) { return; }
-
-    // Disable current camera
-    if (previousCamera) {
-      previousCamera.setAttribute('camera', 'spectator', false);
-    }
-
-    spectatorCameraEl = this.spectatorCameraEl = newCameraEl;
-    spectatorCameraEl.setAttribute('camera', 'active', false);
-    spectatorCameraEl.play();
-
-    sceneEl.emit('camera-set-spectator', {cameraEl: newCameraEl});
-  },
-
-  /**
-   * Disables current spectator camera.
-   */
-  disableSpectatorCamera: function () {
-    this.spectatorCameraEl = undefined;
-  },
-
-  tock: function () {
-    var spectatorCamera;
-    var sceneEl = this.sceneEl;
-    var isVREnabled = sceneEl.renderer.vr.enabled;
-    if (!this.spectatorCameraEl || sceneEl.isMobile) { return; }
-    spectatorCamera = this.spectatorCameraEl.components.camera.camera;
-    sceneEl.renderer.vr.enabled = false;
-    sceneEl.renderer.render(sceneEl.object3D, spectatorCamera);
-    sceneEl.renderer.vr.enabled = isVREnabled;
-  }
-});
-
-/**
- * Remove injected default camera from scene, if present.
- *
- * @param {Element} sceneEl
- */
-function removeDefaultCamera (sceneEl) {
-  var defaultCamera;
-  var camera = sceneEl.camera;
-  if (!camera) { return; }
-
-  // Remove default camera if present.
-  defaultCamera = sceneEl.querySelector('[' + DEFAULT_CAMERA_ATTR + ']');
-  if (!defaultCamera) { return; }
-  sceneEl.removeChild(defaultCamera);
-}
-
-},{"../constants/":116,"../core/system":135,"../utils/bind":189}],183:[function(_dereq_,module,exports){
-var geometries = _dereq_('../core/geometry').geometries;
-var registerSystem = _dereq_('../core/system').registerSystem;
-var THREE = _dereq_('../lib/three');
-
-/**
- * System for geometry component.
- * Handle geometry caching.
- *
- * @member {object} cache - Mapping of stringified component data to THREE.Geometry objects.
- * @member {object} cacheCount - Keep track of number of entities using a geometry to
- *         know whether to dispose on removal.
- */
-module.exports.System = registerSystem('geometry', {
-  init: function () {
-    this.cache = {};
-    this.cacheCount = {};
-  },
-
-  /**
-   * Reset cache. Mainly for testing.
-   */
-  clearCache: function () {
-    this.cache = {};
-    this.cacheCount = {};
-  },
-
-  /**
-   * Attempt to retrieve from cache.
-   *
-   * @returns {Object|null} A geometry if it exists, else null.
-   */
-  getOrCreateGeometry: function (data) {
-    var cache = this.cache;
-    var cachedGeometry;
-    var hash;
-
-    // Skip all caching logic.
-    if (data.skipCache) { return createGeometry(data); }
-
-    // Try to retrieve from cache first.
-    hash = this.hash(data);
-    cachedGeometry = cache[hash];
-    incrementCacheCount(this.cacheCount, hash);
-
-    if (cachedGeometry) { return cachedGeometry; }
-
-    // Create geometry.
-    cachedGeometry = createGeometry(data);
-
-    // Cache and return geometry.
-    cache[hash] = cachedGeometry;
-    return cachedGeometry;
-  },
-
-  /**
-   * Let system know that an entity is no longer using a geometry.
-   */
-  unuseGeometry: function (data) {
-    var cache = this.cache;
-    var cacheCount = this.cacheCount;
-    var geometry;
-    var hash;
-
-    if (data.skipCache) { return; }
-
-    hash = this.hash(data);
-
-    if (!cache[hash]) { return; }
-
-    decrementCacheCount(cacheCount, hash);
-
-    // Another entity is still using this geometry. No need to do anything.
-    if (cacheCount[hash] > 0) { return; }
-
-    // No more entities are using this geometry. Dispose.
-    geometry = cache[hash];
-    geometry.dispose();
-    delete cache[hash];
-    delete cacheCount[hash];
-  },
-
-  /**
-   * Use JSON.stringify to turn component data into hash.
-   * Should be deterministic within a single browser engine.
-   * If not, then look into json-stable-stringify.
-   */
-  hash: function (data) {
-    return JSON.stringify(data);
-  }
-});
-
-/**
- * Create geometry using component data.
- *
- * @param {object} data - Component data.
- * @returns {object} Geometry.
- */
-function createGeometry (data) {
-  var geometryType = data.primitive;
-  var GeometryClass = geometries[geometryType] && geometries[geometryType].Geometry;
-  var geometryInstance = new GeometryClass();
-
-  if (!GeometryClass) { throw new Error('Unknown geometry `' + geometryType + '`'); }
-
-  geometryInstance.init(data);
-  return toBufferGeometry(geometryInstance.geometry, data.buffer);
-}
-
-/**
- * Decreate count of entity using a geometry.
- */
-function decrementCacheCount (cacheCount, hash) {
-  cacheCount[hash]--;
-}
-
-/**
- * Increase count of entity using a geometry.
- */
-function incrementCacheCount (cacheCount, hash) {
-  cacheCount[hash] = cacheCount[hash] === undefined ? 1 : cacheCount[hash] + 1;
-}
-
-/**
- * Transform geometry to BufferGeometry if `doBuffer`.
- *
- * @param {object} geometry
- * @param {boolean} doBuffer
- * @returns {object} Geometry.
- */
-function toBufferGeometry (geometry, doBuffer) {
-  var bufferGeometry;
-  if (!doBuffer) { return geometry; }
-
-  bufferGeometry = new THREE.BufferGeometry().fromGeometry(geometry);
-  bufferGeometry.metadata = {type: geometry.type, parameters: geometry.parameters || {}};
-  geometry.dispose();  // Dispose no longer needed non-buffer geometry.
-  return bufferGeometry;
-}
-
-},{"../core/geometry":126,"../core/system":135,"../lib/three":173}],184:[function(_dereq_,module,exports){
-_dereq_('./camera');
-_dereq_('./geometry');
-_dereq_('./light');
-_dereq_('./material');
-_dereq_('./shadow');
-_dereq_('./tracked-controls');
-
-
-},{"./camera":182,"./geometry":183,"./light":185,"./material":186,"./shadow":187,"./tracked-controls":188}],185:[function(_dereq_,module,exports){
-var registerSystem = _dereq_('../core/system').registerSystem;
-var bind = _dereq_('../utils/bind');
-var constants = _dereq_('../constants/');
-
-var DEFAULT_LIGHT_ATTR = 'data-aframe-default-light';
-
-/**
- * Light system.
- *
- * Prescribes default lighting if not specified (one ambient, one directional).
- * Removes default lighting from the scene when a new light is added.
- *
- * @param {bool} defaultLights - Whether default lighting are defined.
- * @param {bool} userDefinedLights - Whether user lighting is defined.
- */
-module.exports.System = registerSystem('light', {
-  schema: {
-    defaultLightsEnabled: {default: true}
-  },
-
-  init: function () {
-    this.defaultLights = false;
-    this.userDefinedLights = false;
-    // Wait for all entities to fully load before checking for existence of lights.
-    // Since entities wait for <a-assets> to load, any lights attaching to the scene
-    // will do so asynchronously.
-    this.sceneEl.addEventListener('loaded', bind(this.setupDefaultLights, this));
-  },
-
-  /**
-   * Notify scene that light has been added and to remove the default.
-   *
-   * @param {object} el - element holding the light component.
-   */
-  registerLight: function (el) {
-    if (!el.hasAttribute(DEFAULT_LIGHT_ATTR)) {
-      // User added a light, remove default lights through DOM.
-      this.removeDefaultLights();
-      this.userDefinedLights = true;
-    }
-  },
-
-  removeDefaultLights: function () {
-    var defaultLights;
-    var sceneEl = this.sceneEl;
-
-    if (!this.defaultLights) { return; }
-    defaultLights = document.querySelectorAll('[' + DEFAULT_LIGHT_ATTR + ']');
-    for (var i = 0; i < defaultLights.length; i++) {
-      sceneEl.removeChild(defaultLights[i]);
-    }
-    this.defaultLights = false;
-  },
-
-  /**
-   * Prescibe default lights to the scene.
-   * Does so by injecting markup such that this state is not invisible.
-   * These lights are removed if the user adds any lights.
-   */
-  setupDefaultLights: function () {
-    var sceneEl = this.sceneEl;
-    var ambientLight;
-    var directionalLight;
-
-    if (this.userDefinedLights || this.defaultLights || !this.data.defaultLightsEnabled) {
-      return;
-    }
-
-    ambientLight = document.createElement('a-entity');
-    ambientLight.setAttribute('light', {color: '#BBB', type: 'ambient'});
-    ambientLight.setAttribute(DEFAULT_LIGHT_ATTR, '');
-    ambientLight.setAttribute(constants.AFRAME_INJECTED, '');
-    sceneEl.appendChild(ambientLight);
-
-    directionalLight = document.createElement('a-entity');
-    directionalLight.setAttribute('light', {color: '#FFF', intensity: 0.6, castShadow: true});
-    directionalLight.setAttribute('position', {x: -0.5, y: 1, z: 1});
-    directionalLight.setAttribute(DEFAULT_LIGHT_ATTR, '');
-    directionalLight.setAttribute(constants.AFRAME_INJECTED, '');
-    sceneEl.appendChild(directionalLight);
-
-    this.defaultLights = true;
-  }
-});
-
-},{"../constants/":116,"../core/system":135,"../utils/bind":189}],186:[function(_dereq_,module,exports){
-var registerSystem = _dereq_('../core/system').registerSystem;
-var THREE = _dereq_('../lib/three');
-var utils = _dereq_('../utils/');
-var isHLS = _dereq_('../utils/material').isHLS;
-
-var bind = utils.bind;
-var debug = utils.debug;
-var error = debug('components:texture:error');
-var TextureLoader = new THREE.TextureLoader();
-var warn = debug('components:texture:warn');
-
-TextureLoader.setCrossOrigin('anonymous');
-
-/**
- * System for material component.
- * Handle material registration, updates (for fog), and texture caching.
- *
- * @member {object} materials - Registered materials.
- * @member {object} textureCounts - Number of times each texture is used. Tracked
- *         separately from textureCache, because the cache (1) is populated in
- *         multiple places, and (2) may be cleared at any time.
- * @member {object} textureCache - Texture cache for:
- *   - Images: textureCache has mapping of src -> repeat -> cached three.js texture.
- *   - Videos: textureCache has mapping of videoElement -> cached three.js texture.
- */
-module.exports.System = registerSystem('material', {
-  init: function () {
-    this.materials = {};
-    this.textureCounts = {};
-    this.textureCache = {};
-
-    this.sceneEl.addEventListener(
-      'materialtextureloaded',
-      bind(this.onMaterialTextureLoaded, this)
-    );
-  },
-
-  clearTextureCache: function () {
-    this.textureCache = {};
-  },
-
-  /**
-   * Determine whether `src` is a image or video. Then try to load the asset, then call back.
-   *
-   * @param {string, or element} src - Texture URL or element.
-   * @param {string} data - Relevant texture data used for caching.
-   * @param {function} cb - Callback to pass texture to.
-   */
-  loadTexture: function (src, data, cb) {
-    var self = this;
-
-    // Canvas.
-    if (src.tagName === 'CANVAS') {
-      this.loadCanvas(src, data, cb);
-      return;
-    }
-
-    // Video element.
-    if (src.tagName === 'VIDEO') {
-      if (!src.src && !src.srcObject && !src.childElementCount) {
-        warn('Video element was defined with neither `source` elements nor `src` / `srcObject` attributes.');
-      }
-      this.loadVideo(src, data, cb);
-      return;
-    }
-
-    utils.srcLoader.validateSrc(src, loadImageCb, loadVideoCb);
-    function loadImageCb (src) { self.loadImage(src, data, cb); }
-    function loadVideoCb (src) { self.loadVideo(src, data, cb); }
-  },
-
-  /**
-   * High-level function for loading image textures (THREE.Texture).
-   *
-   * @param {Element|string} src - Texture source.
-   * @param {object} data - Texture data.
-   * @param {function} cb - Callback to pass texture to.
-   */
-  loadImage: function (src, data, handleImageTextureLoaded) {
-    var hash = this.hash(data);
-    var textureCache = this.textureCache;
-
-    // Texture already being loaded or already loaded. Wait on promise.
-    if (textureCache[hash]) {
-      textureCache[hash].then(handleImageTextureLoaded);
-      return;
-    }
-
-    // Texture not yet being loaded. Start loading it.
-    textureCache[hash] = loadImageTexture(src, data);
-    textureCache[hash].then(handleImageTextureLoaded);
-  },
-
-  /**
-   * High-level function for loading canvas textures (THREE.Texture).
-   *
-   * @param {Element|string} src - Texture source.
-   * @param {object} data - Texture data.
-   * @param {function} cb - Callback to pass texture to.
-   */
-  loadCanvas: function (src, data, cb) {
-    // Hack readyState and HAVE_CURRENT_DATA on canvas to work with THREE.VideoTexture
-    src.readyState = 2;
-    src.HAVE_CURRENT_DATA = 2;
-    this.loadVideo(src, data, cb);
-  },
-
-    /**
-   * Load video texture (THREE.VideoTexture).
-   * Which is just an image texture that RAFs + needsUpdate.
-   * Note that creating a video texture is synchronous unlike loading an image texture.
-   * Made asynchronous to be consistent with image textures.
-   *
-   * @param {Element|string} src - Texture source.
-   * @param {object} data - Texture data.
-   * @param {function} cb - Callback to pass texture to.
-   */
-  loadVideo: function (src, data, cb) {
-    var hash;
-    var texture;
-    var textureCache = this.textureCache;
-    var videoEl;
-    var videoTextureResult;
-
-    function handleVideoTextureLoaded (result) {
-      result.texture.needsUpdate = true;
-      cb(result.texture, result.videoEl);
-    }
-
-    // Video element provided.
-    if (typeof src !== 'string') {
-      // Check cache before creating texture.
-      videoEl = src;
-      hash = this.hashVideo(data, videoEl);
-      if (textureCache[hash]) {
-        textureCache[hash].then(handleVideoTextureLoaded);
-        return;
-      }
-      // If not in cache, fix up the attributes then start to create the texture.
-      fixVideoAttributes(videoEl);
-    }
-
-    // Only URL provided. Use video element to create texture.
-    videoEl = videoEl || createVideoEl(src, data.width, data.height);
-
-    // Generated video element already cached. Use that.
-    hash = this.hashVideo(data, videoEl);
-    if (textureCache[hash]) {
-      textureCache[hash].then(handleVideoTextureLoaded);
-      return;
-    }
-
-    // Create new video texture.
-    texture = new THREE.VideoTexture(videoEl);
-    texture.minFilter = THREE.LinearFilter;
-    setTextureProperties(texture, data);
-
-    // If iOS and video is HLS, do some hacks.
-    if (this.sceneEl.isIOS &&
-        isHLS(videoEl.src || videoEl.getAttribute('src'),
-              videoEl.type || videoEl.getAttribute('type'))) {
-      // Actually BGRA. Tell shader to correct later.
-      texture.format = THREE.RGBAFormat;
-      texture.needsCorrectionBGRA = true;
-      // Apparently needed for HLS. Tell shader to correct later.
-      texture.flipY = false;
-      texture.needsCorrectionFlipY = true;
-    }
-
-    // Cache as promise to be consistent with image texture caching.
-    videoTextureResult = {texture: texture, videoEl: videoEl};
-    textureCache[hash] = Promise.resolve(videoTextureResult);
-    handleVideoTextureLoaded(videoTextureResult);
-  },
-
-  /**
-   * Create a hash of the material properties for texture cache key.
-   */
-  hash: function (data) {
-    if (data.src.tagName) {
-      // Since `data.src` can be an element, parse out the string if necessary for the hash.
-      data = utils.extendDeep({}, data);
-      data.src = data.src.src;
-    }
-    return JSON.stringify(data);
-  },
-
-  hashVideo: function (data, videoEl) {
-    return calculateVideoCacheHash(data, videoEl);
-  },
-
-  /**
-   * Keep track of material in case an update trigger is needed (e.g., fog).
-   *
-   * @param {object} material
-   */
-  registerMaterial: function (material) {
-    this.materials[material.uuid] = material;
-  },
-
-  /**
-   * Stop tracking material, and dispose of any textures not being used by
-   * another material component.
-   *
-   * @param {object} material
-   */
-  unregisterMaterial: function (material) {
-    delete this.materials[material.uuid];
-
-    // If any textures on this material are no longer in use, dispose of them.
-    var textureCounts = this.textureCounts;
-    Object.keys(material)
-      .filter(function (propName) {
-        return material[propName] && material[propName].isTexture;
-      })
-      .forEach(function (mapName) {
-        textureCounts[material[mapName].uuid]--;
-        if (textureCounts[material[mapName].uuid] <= 0) {
-          material[mapName].dispose();
-        }
-      });
-  },
-
-  /**
-   * Trigger update to all registered materials.
-   */
-  updateMaterials: function (material) {
-    var materials = this.materials;
-    Object.keys(materials).forEach(function (uuid) {
-      materials[uuid].needsUpdate = true;
-    });
-  },
-
-  /**
-   * Track textures used by material components, so that they can be safely
-   * disposed when no longer in use. Textures must be registered here, and not
-   * through registerMaterial(), because textures may not be attached at the
-   * time the material is registered.
-   *
-   * @param {Event} e
-   */
-  onMaterialTextureLoaded: function (e) {
-    if (!this.textureCounts[e.detail.texture.uuid]) {
-      this.textureCounts[e.detail.texture.uuid] = 0;
-    }
-    this.textureCounts[e.detail.texture.uuid]++;
-  }
-});
-
-/**
- * Calculates consistent hash from a video element using its attributes.
- * If the video element has an ID, use that.
- * Else build a hash that looks like `src:myvideo.mp4;height:200;width:400;`.
- *
- * @param data {object} - Texture data such as repeat.
- * @param videoEl {Element} - Video element.
- * @returns {string}
- */
-function calculateVideoCacheHash (data, videoEl) {
-  var i;
-  var id = videoEl.getAttribute('id');
-  var hash;
-  var videoAttributes;
-
-  if (id) { return id; }
-
-  // Calculate hash using sorted video attributes.
-  hash = '';
-  videoAttributes = data || {};
-  for (i = 0; i < videoEl.attributes.length; i++) {
-    videoAttributes[videoEl.attributes[i].name] = videoEl.attributes[i].value;
-  }
-  Object.keys(videoAttributes).sort().forEach(function (name) {
-    hash += name + ':' + videoAttributes[name] + ';';
-  });
-
-  return hash;
-}
-
-/**
- * Load image texture.
- *
- * @private
- * @param {string|object} src - An <img> element or url to an image file.
- * @param {object} data - Data to set texture properties like `repeat`.
- * @returns {Promise} Resolves once texture is loaded.
- */
-function loadImageTexture (src, data) {
-  return new Promise(doLoadImageTexture);
-
-  function doLoadImageTexture (resolve, reject) {
-    var isEl = typeof src !== 'string';
-
-    function resolveTexture (texture) {
-      setTextureProperties(texture, data);
-      texture.needsUpdate = true;
-      resolve(texture);
-    }
-
-    // Create texture from an element.
-    if (isEl) {
-      resolveTexture(new THREE.Texture(src));
-      return;
-    }
-
-    // Request and load texture from src string. THREE will create underlying element.
-    // Use THREE.TextureLoader (src, onLoad, onProgress, onError) to load texture.
-    TextureLoader.load(
-      src,
-      resolveTexture,
-      function () { /* no-op */ },
-      function (xhr) {
-        error('`$s` could not be fetched (Error code: %s; Response: %s)', xhr.status,
-              xhr.statusText);
-      }
-    );
-  }
-}
-
-/**
- * Set texture properties such as repeat and offset.
- *
- * @param {object} data - With keys like `repeat`.
- */
-function setTextureProperties (texture, data) {
-  var offset = data.offset || {x: 0, y: 0};
-  var repeat = data.repeat || {x: 1, y: 1};
-  var npot = data.npot || false;
-
-  // To support NPOT textures, wrap must be ClampToEdge (not Repeat),
-  // and filters must not use mipmaps (i.e. Nearest or Linear).
-  if (npot) {
-    texture.wrapS = THREE.ClampToEdgeWrapping;
-    texture.wrapT = THREE.ClampToEdgeWrapping;
-    texture.magFilter = THREE.LinearFilter;
-    texture.minFilter = THREE.LinearFilter;
-  }
-
-  // Don't bother setting repeat if it is 1/1. Power-of-two is required to repeat.
-  if (repeat.x !== 1 || repeat.y !== 1) {
-    texture.wrapS = THREE.RepeatWrapping;
-    texture.wrapT = THREE.RepeatWrapping;
-    texture.repeat.set(repeat.x, repeat.y);
-  }
-  // Don't bother setting offset if it is 0/0.
-  if (offset.x !== 0 || offset.y !== 0) {
-    texture.offset.set(offset.x, offset.y);
-  }
-}
-
-/**
- * Create video element to be used as a texture.
- *
- * @param {string} src - Url to a video file.
- * @param {number} width - Width of the video.
- * @param {number} height - Height of the video.
- * @returns {Element} Video element.
- */
-function createVideoEl (src, width, height) {
-  var videoEl = document.createElement('video');
-  videoEl.width = width;
-  videoEl.height = height;
-  // Support inline videos for iOS webviews.
-  videoEl.setAttribute('playsinline', '');
-  videoEl.setAttribute('webkit-playsinline', '');
-  videoEl.autoplay = true;
-  videoEl.loop = true;
-  videoEl.crossOrigin = 'anonymous';
-  videoEl.addEventListener('error', function () {
-    warn('`$s` is not a valid video', src);
-  }, true);
-  videoEl.src = src;
-  return videoEl;
-}
-
-/**
- * Fixes a video element's attributes to prevent developers from accidentally passing the
- * wrong attribute values to commonly misused video attributes.
- *
- * <video> does not treat `autoplay`, `controls`, `crossorigin`, `loop`, and `preload` as
- * as booleans. Existence of those attributes will mean truthy.
- *
- * For example, translates <video loop="false"> to <video>.
- *
- * @see https://developer.mozilla.org/docs/Web/HTML/Element/video#Attributes
- * @param {Element} videoEl - Video element.
- * @returns {Element} Video element with the correct properties updated.
- */
-function fixVideoAttributes (videoEl) {
-  videoEl.autoplay = videoEl.hasAttribute('autoplay') && videoEl.getAttribute('autoplay') !== 'false';
-  videoEl.controls = videoEl.hasAttribute('controls') && videoEl.getAttribute('controls') !== 'false';
-  if (videoEl.getAttribute('loop') === 'false') {
-    videoEl.removeAttribute('loop');
-  }
-  if (videoEl.getAttribute('preload') === 'false') {
-    videoEl.preload = 'none';
-  }
-  videoEl.crossOrigin = videoEl.crossOrigin || 'anonymous';
-  // To support inline videos in iOS webviews.
-  videoEl.setAttribute('playsinline', '');
-  videoEl.setAttribute('webkit-playsinline', '');
-  return videoEl;
-}
-
-},{"../core/system":135,"../lib/three":173,"../utils/":195,"../utils/material":196}],187:[function(_dereq_,module,exports){
-var registerSystem = _dereq_('../core/system').registerSystem;
-var THREE = _dereq_('../lib/three');
-
-var SHADOW_MAP_TYPE_MAP = {
-  basic: THREE.BasicShadowMap,
-  pcf: THREE.PCFShadowMap,
-  pcfsoft: THREE.PCFSoftShadowMap
-};
-
-/**
- * Shadow system.
- *
- * Enabled automatically when one or more shadow components are added to the scene, the system sets
- * options on the WebGLRenderer for configuring shadow appearance.
- */
-module.exports.System = registerSystem('shadow', {
-  schema: {
-    autoUpdate: {default: true},
-    renderReverseSided: {default: true},
-    renderSingleSided: {default: true},
-    type: {default: 'pcf', oneOf: ['basic', 'pcf', 'pcfsoft']}
-  },
-
-  init: function () {
-    var sceneEl = this.sceneEl;
-    var data = this.data;
-
-    this.shadowMapEnabled = false;
-
-    if (!sceneEl.renderer) { return; }  // For tests.
-
-    sceneEl.renderer.shadowMap.type = SHADOW_MAP_TYPE_MAP[data.type];
-    sceneEl.renderer.shadowMap.renderReverseSided = data.renderReverseSided;
-    sceneEl.renderer.shadowMap.renderSingleSided = data.renderSingleSided;
-    sceneEl.renderer.shadowMap.autoUpdate = data.autoUpdate;
-    this.setShadowMapEnabled(this.shadowMapEnabled);
-  },
-
-  /**
-   * Enables/disables the renderer shadow map.
-   * @param {boolean} enabled
-   */
-  setShadowMapEnabled: function (enabled) {
-    var renderer = this.sceneEl.renderer;
-    this.shadowMapEnabled = enabled;
-    if (renderer) {
-      renderer.shadowMap.enabled = enabled;
-    }
-  }
-});
-
-},{"../core/system":135,"../lib/three":173}],188:[function(_dereq_,module,exports){
-var registerSystem = _dereq_('../core/system').registerSystem;
-var utils = _dereq_('../utils');
-
-/**
- * Tracked controls system.
- * Maintain list with available tracked controllers.
- */
-module.exports.System = registerSystem('tracked-controls', {
-  init: function () {
-    var self = this;
-
-    this.controllers = [];
-
-    this.updateControllerList(navigator.getGamepads && navigator.getGamepads());
-    this.throttledUpdateControllerList = utils.throttle(this.updateControllerList, 500, this);
-
-    if (!navigator.getVRDisplays) { return; }
-
-    this.sceneEl.addEventListener('enter-vr', function () {
-      navigator.getVRDisplays().then(function (displays) {
-        if (displays.length) { self.vrDisplay = displays[0]; }
-      });
-    });
-  },
-
-  tick: function () {
-    var gamepads;
-    // Call getGamepads for Chrome.
-    gamepads = navigator.getGamepads && navigator.getGamepads();
-    this.throttledUpdateControllerList(gamepads);
-  },
-
-  /**
-   * Update controller list.
-   */
-  updateControllerList: function (gamepads) {
-    var controllers = this.controllers;
-    var gamepad;
-    var i;
-    var prevCount;
-
-    if (!gamepads) { return; }
-
-    prevCount = controllers.length;
-    controllers.length = 0;
-    for (i = 0; i < gamepads.length; ++i) {
-      gamepad = gamepads[i];
-      if (gamepad && gamepad.pose) {
-        controllers.push(gamepad);
-      }
-    }
-
-    if (controllers.length !== prevCount) {
-      this.el.emit('controllersupdated', undefined, false);
-    }
-  }
-});
-
-},{"../core/system":135,"../utils":195}],189:[function(_dereq_,module,exports){
-/**
- * Faster version of Function.prototype.bind
- * @param {Function} fn - Function to wrap.
- * @param {Object} ctx - What to bind as context.
- * @param {...*} arguments - Arguments to pass through.
- */
-module.exports = function bind (fn, ctx/* , arg1, arg2 */) {
-  return (function (prependedArgs) {
-    return function bound () {
-      // Concat the bound function arguments with those passed to original bind
-      var args = prependedArgs.concat(Array.prototype.slice.call(arguments, 0));
-      return fn.apply(ctx, args);
-    };
-  })(Array.prototype.slice.call(arguments, 2));
-};
-
-},{}],190:[function(_dereq_,module,exports){
-/* global THREE */
-var debug = _dereq_('./debug');
-var extend = _dereq_('object-assign');
-
-var warn = debug('utils:coordinates:warn');
-
-// Coordinate string regex. Handles negative, positive, and decimals.
-var regex = /^\s*((-?\d*\.{0,1}\d+(e-?\d+)?)\s+){2,3}(-?\d*\.{0,1}\d+(e-?\d+)?)\s*$/;
-module.exports.regex = regex;
-
-/**
- * Parses coordinates from an "x y z" string.
- * Example: "3 10 -5" to {x: 3, y: 10, z: -5}.
- *
- * @param {string} val - An "x y z" string.
- * @param {string} defaults - fallback value.
- * @returns {object} An object with keys [x, y, z].
- */
-function parse (value, defaultVec) {
-  var coordinate;
-  var vec;
-
-  if (value && value instanceof Object) {
-    if (defaultVec) {
-      value.x = value.x === undefined ? defaultVec.x : value.x;
-      value.y = value.y === undefined ? defaultVec.y : value.y;
-      value.z = value.z === undefined ? defaultVec.z : value.z;
-      value.w = value.w === undefined ? defaultVec.w : value.w;
-    }
-    return vecParseFloat(value);
-  }
-
-  if (value === null || value === undefined) {
-    return typeof defaultVec === 'object' ? extend({}, defaultVec) : defaultVec;
-  }
-
-  coordinate = value.trim().replace(/\s+/g, ' ').split(' ');
-  vec = {};
-  vec.x = coordinate[0] || defaultVec && defaultVec.x;
-  vec.y = coordinate[1] || defaultVec && defaultVec.y;
-  vec.z = coordinate[2] || defaultVec && defaultVec.z;
-  vec.w = coordinate[3] || defaultVec && defaultVec.w;
-  return vecParseFloat(vec);
-}
-module.exports.parse = parse;
-
-/**
- * Stringify coordinates from an object with keys [x y z].
- * Example: {x: 3, y: 10, z: -5} to "3 10 -5".
- *
- * @param {object|string} data - An object with keys [x y z].
- * @returns {string} An "x y z" string.
- */
-function stringify (data) {
-  if (typeof data !== 'object') { return data; }
-  return [data.x, data.y, data.z, data.w].join(' ').trim();
-}
-module.exports.stringify = stringify;
-
-/**
- * @returns {bool}
- */
-function isCoordinates (value) {
-  return regex.test(value);
-}
-module.exports.isCoordinates = isCoordinates;
-
-module.exports.isCoordinate = function (value) {
-  warn('`AFRAME.utils.isCoordinate` has been renamed to `AFRAME.utils.isCoordinates`');
-  return isCoordinates(value);
-};
-
-function vecParseFloat (vec) {
-  var key;
-  for (key in vec) {
-    if (vec[key] === undefined) {
-      delete vec[key];
-      continue;
-    }
-    if (vec[key].constructor === String) {
-      vec[key] = parseFloat(vec[key], 10);
-    }
-  }
-  return vec;
-}
-
-/**
- * Convert {x, y, z} object to three.js Vector3.
- */
-module.exports.toVector3 = function (vec3) {
-  return new THREE.Vector3(vec3.x, vec3.y, vec3.z);
-};
-
-},{"./debug":191,"object-assign":26}],191:[function(_dereq_,module,exports){
-(function (process){
-var debugLib = _dereq_('debug');
-var extend = _dereq_('object-assign');
-
-var settings = {
-  colors: {
-    debug: 'gray',
-    error: 'red',
-    info: 'gray',
-    warn: 'orange'
-  }
-};
-
-/**
- * Monkeypatches `debug` so we can colorize error/warning messages.
- *
- * (See issue: https://github.com/visionmedia/debug/issues/137)
- */
-var debug = function (namespace) {
-  var d = debugLib(namespace);
-
-  d.color = getDebugNamespaceColor(namespace);
-
-  return d;
-};
-extend(debug, debugLib);
-
-/**
- * Returns the type of the namespace (e.g., `error`, `warn`).
- *
- * @param {String} namespace
- *   The debug logger's namespace (e.g., `components:geometry:warn`).
- * @returns {String} The type of the namespace (e.g., `warn`).
- * @api private
- */
-function getDebugNamespaceType (namespace) {
-  var chunks = namespace.split(':');
-
-  return chunks[chunks.length - 1];  // Return the last one
-}
-
-/**
- * Returns the color of the namespace (e.g., `orange`).
- *
- * @param {String} namespace
- *   The debug logger's namespace (e.g., `components:geometry:warn`).
- * @returns {String} The color of the namespace (e.g., `orange`).
- * @api private
- */
-function getDebugNamespaceColor (namespace) {
-  var type = getDebugNamespaceType(namespace);
-
-  var color = settings.colors && settings.colors[type];
-
-  return color || null;
-}
-
-/**
- * Returns `localStorage` if possible.
- *
- * This is necessary because Safari throws when a user disables
- * cookies or `localStorage` and you attempt to access it.
- *
- * @returns {localStorage}
- * @api private
- */
-function storage () {
-  try {
-    return window.localStorage;
-  } catch (e) {
-  }
-}
-
-/**
- * To enable console logging, type this in the Console of your Dev Tools:
- *
- *   localStorage.logs = 1
- *
- * To disable console logging:
- *
- *   localStorage.logs = 0
- *
- */
-var ls = storage();
-if (ls && (parseInt(ls.logs, 10) || ls.logs === 'true')) {
-  debug.enable('*');
-} else {
-  debug.enable('*:error,*:info,*:warn');
-}
-
-if (process.browser) { window.logs = debug; }
-
-module.exports = debug;
-
-}).call(this,_dereq_('_process'))
-
-},{"_process":6,"debug":10,"object-assign":26}],192:[function(_dereq_,module,exports){
-(function (process){
-var vrDisplay;
-var polyfilledVRDisplay;
-var POLYFILL_VRDISPLAY_ID = 'Cardboard VRDisplay (webvr-polyfill)';
-
-if (navigator.getVRDisplays) {
-  navigator.getVRDisplays().then(function (displays) {
-    vrDisplay = displays.length && displays[0];
-    polyfilledVRDisplay = vrDisplay.displayName === POLYFILL_VRDISPLAY_ID;
-  });
-}
-
-function getVRDisplay () { return vrDisplay; }
-module.exports.getVRDisplay = getVRDisplay;
-
-/**
- * Determine if a headset is connected by checking if a vrDisplay is available.
- */
-function checkHeadsetConnected () { return !!getVRDisplay(); }
-module.exports.checkHeadsetConnected = checkHeadsetConnected;
-
-/**
- * Check for positional tracking.
- */
-function checkHasPositionalTracking () {
-  var vrDisplay = getVRDisplay();
-  if (isMobile() || isGearVR()) { return false; }
-  return vrDisplay && vrDisplay.capabilities.hasPosition;
-}
-module.exports.checkHasPositionalTracking = checkHasPositionalTracking;
-
-/**
- * Checks if browser is mobile.
- * @return {Boolean} True if mobile browser detected.
- */
-var isMobile = (function () {
-  var _isMobile = false;
-  (function (a) {
-    // eslint-disable-next-line no-useless-escape
-    if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) {
-      _isMobile = true;
-    }
-    if (isIOS() || isTablet() || isR7()) {
-      _isMobile = true;
-    }
-  })(window.navigator.userAgent || window.navigator.vendor || window.opera);
-
-  return function () { return _isMobile; };
-})();
-module.exports.isMobile = isMobile;
-
-/**
- *  Detect tablet devices.
- *  @param {string} mockUserAgent - Allow passing a mock user agent for testing.
- */
-function isTablet (mockUserAgent) {
-  var userAgent = mockUserAgent || window.navigator.userAgent;
-  return /ipad|Nexus (7|9)|xoom|sch-i800|playbook|tablet|kindle/i.test(userAgent);
-}
-module.exports.isTablet = isTablet;
-
-function isIOS () {
-  return /iPad|iPhone|iPod/.test(window.navigator.platform);
-}
-module.exports.isIOS = isIOS;
-
-function isGearVR () {
-  return /SamsungBrowser.+Mobile VR/i.test(window.navigator.userAgent);
-}
-module.exports.isGearVR = isGearVR;
-
-function isR7 () {
-  return /R7 Build/.test(window.navigator.userAgent);
-}
-module.exports.isR7 = isR7;
-
-/**
- * Checks mobile device orientation.
- * @return {Boolean} True if landscape orientation.
- */
-module.exports.isLandscape = function () {
-  var orientation = window.orientation;
-  if (isR7()) { orientation += 90; }
-  return orientation === 90 || orientation === -90;
-};
-
-/**
- * Check if device is iOS and older than version 10.
- */
-module.exports.isIOSOlderThan10 = function (userAgent) {
-  return /(iphone|ipod|ipad).*os.(7|8|9)/i.test(userAgent);
-};
-
-/**
- * Check if running in a browser or spoofed browser (bundler).
- * We need to check a node api that isn't mocked on either side.
- * `require` and `module.exports` are mocked in browser by bundlers.
- * `window` is mocked in node.
- * `process` is also mocked by browserify, but has custom properties.
- */
-module.exports.isBrowserEnvironment = !!(!process || process.browser);
-
-/**
- * Check if running in node on the server.
- */
-module.exports.isNodeEnvironment = !module.exports.isBrowserEnvironment;
-
-/**
- * Update an Object3D pose if a polyfilled vrDisplay is present.
- */
-module.exports.PolyfillControls = function PolyfillControls (object) {
-  var frameData;
-  if (window.VRFrameData) { frameData = new window.VRFrameData(); }
-  this.update = function () {
-    var pose;
-    if (!vrDisplay || !polyfilledVRDisplay) { return; }
-    vrDisplay.getFrameData(frameData);
-    pose = frameData.pose;
-    if (pose.orientation !== null) {
-      object.quaternion.fromArray(pose.orientation);
-    }
-    if (pose.position !== null) {
-      object.position.fromArray(pose.position);
-    } else {
-      object.position.set(0, 0, 0);
-    }
-  };
-};
-
-
-}).call(this,_dereq_('_process'))
-
-},{"_process":6}],193:[function(_dereq_,module,exports){
-/**
- * Split a delimited component property string (e.g., `material.color`) to an object
- * containing `component` name and `property` name. If there is no delimiter, just return the
- * string back.
- *
- * Cache arrays from splitting strings via delimiter to save on memory.
- *
- * @param {string} str - e.g., `material.opacity`.
- * @param {string} delimiter - e.g., `.`.
- * @returns {array} e.g., `['material', 'opacity']`.
- */
-var propertyPathCache = {};
-function getComponentPropertyPath (str, delimiter) {
-  delimiter = delimiter || '.';
-  if (!propertyPathCache[delimiter]) { propertyPathCache[delimiter] = {}; }
-  if (str.indexOf(delimiter) !== -1) {
-    propertyPathCache[delimiter][str] = str.split(delimiter);
-  } else {
-    propertyPathCache[delimiter][str] = str;
-  }
-  return propertyPathCache[delimiter][str];
-}
-module.exports.getComponentPropertyPath = getComponentPropertyPath;
-module.exports.propertyPathCache = propertyPathCache;
-
-/**
- * Get component property using encoded component name + component property name with a
- * delimiter.
- */
-module.exports.getComponentProperty = function (el, name, delimiter) {
-  var splitName;
-  delimiter = delimiter || '.';
-  if (name.indexOf(delimiter) !== -1) {
-    splitName = getComponentPropertyPath(name, delimiter);
-    if (splitName.constructor === String) {
-      return el.getAttribute(splitName);
-    }
-    return el.getAttribute(splitName[0])[splitName[1]];
-  }
-  return el.getAttribute(name);
-};
-
-/**
- * Set component property using encoded component name + component property name with a
- * delimiter.
- */
-module.exports.setComponentProperty = function (el, name, value, delimiter) {
-  var splitName;
-  delimiter = delimiter || '.';
-  if (name.indexOf(delimiter) !== -1) {
-    splitName = getComponentPropertyPath(name, delimiter);
-    if (splitName.constructor === String) {
-      el.setAttribute(splitName, value);
-    } else {
-      el.setAttribute(splitName[0], splitName[1], value);
-    }
-    return;
-  }
-  el.setAttribute(name, value);
-};
-
-},{}],194:[function(_dereq_,module,exports){
-module.exports = function forceCanvasResizeSafariMobile (canvasEl) {
-  var width = canvasEl.style.width;
-  var height = canvasEl.style.height;
-  // Taken from webvr-polyfill (https://github.com/borismus/webvr-polyfill/blob/85f657cd502ec9417bf26b87c3cb2afa6a70e079/src/util.js#L200)
-  // iOS only workaround for https://bugs.webkit.org/show_bug.cgi?id=152556
-  // By changing the size 1 pixel and restoring the previous value
-  // we trigger a size recalculation cycle.
-  canvasEl.style.width = (parseInt(width, 10) + 1) + 'px';
-  canvasEl.style.height = (parseInt(height, 10) + 1) + 'px';
-  setTimeout(function () {
-    canvasEl.style.width = width;
-    canvasEl.style.height = height;
-  }, 200);
-};
-
-},{}],195:[function(_dereq_,module,exports){
-/* global location */
-
-/* Centralized place to reference utilities since utils is exposed to the user. */
-var debug = _dereq_('./debug');
-var deepAssign = _dereq_('deep-assign');
-var device = _dereq_('./device');
-var objectAssign = _dereq_('object-assign');
-var objectPool = _dereq_('./object-pool');
-
-var warn = debug('utils:warn');
-
-module.exports.bind = _dereq_('./bind');
-module.exports.coordinates = _dereq_('./coordinates');
-module.exports.debug = debug;
-module.exports.device = device;
-module.exports.entity = _dereq_('./entity');
-module.exports.forceCanvasResizeSafariMobile = _dereq_('./forceCanvasResizeSafariMobile');
-module.exports.material = _dereq_('./material');
-module.exports.objectPool = objectPool;
-module.exports.styleParser = _dereq_('./styleParser');
-module.exports.trackedControls = _dereq_('./tracked-controls');
-
-module.exports.checkHeadsetConnected = function () {
-  warn('`utils.checkHeadsetConnected` has moved to `utils.device.checkHeadsetConnected`');
-  return device.checkHeadsetConnected(arguments);
-};
-module.exports.isGearVR = function () {
-  warn('`utils.isGearVR` has moved to `utils.device.isGearVR`');
-  return device.isGearVR(arguments);
-};
-module.exports.isIOS = function () {
-  warn('`utils.isIOS` has moved to `utils.device.isIOS`');
-  return device.isIOS(arguments);
-};
-module.exports.isMobile = function () {
-  warn('`utils.isMobile has moved to `utils.device.isMobile`');
-  return device.isMobile(arguments);
-};
-
-/**
- * Returns throttle function that gets called at most once every interval.
- *
- * @param {function} functionToThrottle
- * @param {number} minimumInterval - Minimal interval between calls (milliseconds).
- * @param {object} optionalContext - If given, bind function to throttle to this context.
- * @returns {function} Throttled function.
- */
-module.exports.throttle = function (functionToThrottle, minimumInterval, optionalContext) {
-  var lastTime;
-  if (optionalContext) {
-    functionToThrottle = module.exports.bind(functionToThrottle, optionalContext);
-  }
-  return function () {
-    var time = Date.now();
-    var sinceLastTime = typeof lastTime === 'undefined' ? minimumInterval : time - lastTime;
-    if (typeof lastTime === 'undefined' || (sinceLastTime >= minimumInterval)) {
-      lastTime = time;
-      functionToThrottle.apply(null, arguments);
-    }
-  };
-};
-
-/**
- * Returns throttle function that gets called at most once every interval.
- * Uses the time/timeDelta timestamps provided by the global render loop for better perf.
- *
- * @param {function} functionToThrottle
- * @param {number} minimumInterval - Minimal interval between calls (milliseconds).
- * @param {object} optionalContext - If given, bind function to throttle to this context.
- * @returns {function} Throttled function.
- */
-module.exports.throttleTick = function (functionToThrottle, minimumInterval, optionalContext) {
-  var lastTime;
-  if (optionalContext) {
-    functionToThrottle = module.exports.bind(functionToThrottle, optionalContext);
-  }
-  return function (time, delta) {
-    var sinceLastTime = typeof lastTime === 'undefined' ? delta : time - lastTime;
-    if (typeof lastTime === 'undefined' || (sinceLastTime >= minimumInterval)) {
-      lastTime = time;
-      functionToThrottle(time, sinceLastTime);
-    }
-  };
-};
-
-/**
- * Returns debounce function that gets called only once after a set of repeated calls.
- *
- * @param {function} functionToDebounce
- * @param {number} wait - Time to wait for repeated function calls (milliseconds).
- * @param {boolean} immediate - Calls the function immediately regardless of if it should be waiting.
- * @returns {function} Debounced function.
- */
-module.exports.debounce = function (func, wait, immediate) {
-  var timeout;
-  return function () {
-    var context = this;
-    var args = arguments;
-    var later = function () {
-      timeout = null;
-      if (!immediate) func.apply(context, args);
-    };
-    var callNow = immediate && !timeout;
-    clearTimeout(timeout);
-    timeout = setTimeout(later, wait);
-    if (callNow) func.apply(context, args);
-  };
-};
-
-/**
- * Mix the properties of source object(s) into a destination object.
- *
- * @param  {object} dest - The object to which properties will be copied.
- * @param  {...object} source - The object(s) from which properties will be copied.
- */
-module.exports.extend = objectAssign;
-module.exports.extendDeep = deepAssign;
-
-module.exports.clone = function (obj) {
-  return JSON.parse(JSON.stringify(obj));
-};
-
-/**
- * Checks if two values are equal.
- * Includes objects and arrays and nested objects and arrays.
- * Try to keep this function performant as it will be called often to see if a component
- * should be updated.
- *
- * @param {object} a - First object.
- * @param {object} b - Second object.
- * @returns {boolean} Whether two objects are deeply equal.
- */
-var deepEqual = (function () {
-  var arrayPool = objectPool.createPool(function () { return []; });
-
-  return function (a, b) {
-    var key;
-    var keysA;
-    var keysB;
-    var i;
-    var valA;
-    var valB;
-
-    // If not objects or arrays, compare as values.
-    if (a === undefined || b === undefined || a === null || b === null ||
-        !(a && b && (a.constructor === Object && b.constructor === Object) ||
-                    (a.constructor === Array && b.constructor === Array))) {
-      return a === b;
-    }
-
-    // Different number of keys, not equal.
-    keysA = arrayPool.use();
-    keysB = arrayPool.use();
-    keysA.length = 0;
-    keysB.length = 0;
-    for (key in a) { keysA.push(key); }
-    for (key in b) { keysB.push(key); }
-    if (keysA.length !== keysB.length) {
-      arrayPool.recycle(keysA);
-      arrayPool.recycle(keysB);
-      return false;
-    }
-
-    // Return `false` at the first sign of inequality.
-    for (i = 0; i < keysA.length; ++i) {
-      valA = a[keysA[i]];
-      valB = b[keysA[i]];
-      // Check nested array and object.
-      if ((typeof valA === 'object' || typeof valB === 'object') ||
-          (Array.isArray(valA) && Array.isArray(valB))) {
-        if (valA === valB) { continue; }
-        if (!deepEqual(valA, valB)) {
-          arrayPool.recycle(keysA);
-          arrayPool.recycle(keysB);
-          return false;
-        }
-      } else if (valA !== valB) {
-        arrayPool.recycle(keysA);
-        arrayPool.recycle(keysB);
-        return false;
-      }
-    }
-
-    arrayPool.recycle(keysA);
-    arrayPool.recycle(keysB);
-    return true;
-  };
-})();
-module.exports.deepEqual = deepEqual;
-
-/**
- * Computes the difference between two objects.
- *
- * @param {object} a - First object to compare (e.g., oldData).
- * @param {object} b - Second object to compare (e.g., newData).
- * @returns {object}
- *   Difference object where set of keys note which values were not equal, and values are
- *   `b`'s values.
- */
-module.exports.diff = (function () {
-  var keys = [];
-
-  return function (a, b, targetObject) {
-    var aVal;
-    var bVal;
-    var bKey;
-    var diff;
-    var key;
-    var i;
-    var isComparingObjects;
-
-    diff = targetObject || {};
-
-    // Collect A keys.
-    keys.length = 0;
-    for (key in a) { keys.push(key); }
-
-    if (!b) { return diff; }
-
-    // Collect B keys.
-    for (bKey in b) {
-      if (keys.indexOf(bKey) === -1) {
-        keys.push(bKey);
-      }
-    }
-
-    for (i = 0; i < keys.length; i++) {
-      key = keys[i];
-      aVal = a[key];
-      bVal = b[key];
-      isComparingObjects = aVal && bVal &&
-                          aVal.constructor === Object && bVal.constructor === Object;
-      if ((isComparingObjects && !deepEqual(aVal, bVal)) ||
-          (!isComparingObjects && aVal !== bVal)) {
-        diff[key] = bVal;
-      }
-    }
-    return diff;
-  };
-})();
-
-/**
- * Returns whether we should capture this keyboard event for keyboard shortcuts.
- * @param {Event} event Event object.
- * @returns {Boolean} Whether the key event should be captured.
- */
-module.exports.shouldCaptureKeyEvent = function (event) {
-  if (event.metaKey) { return false; }
-  return document.activeElement === document.body;
-};
-
-/**
- * Splits a string into an array based on a delimiter.
- *
- * @param   {string=} [str='']        Source string
- * @param   {string=} [delimiter=' '] Delimiter to use
- * @returns {array}                   Array of delimited strings
- */
-module.exports.splitString = function (str, delimiter) {
-  if (typeof delimiter === 'undefined') { delimiter = ' '; }
-  // First collapse the whitespace (or whatever the delimiter is).
-  var regex = new RegExp(delimiter, 'g');
-  str = (str || '').replace(regex, delimiter);
-  // Then split.
-  return str.split(delimiter);
-};
-
-/**
- * Extracts data from the element given an object that contains expected keys.
- *
- * @param {Element} Source element.
- * @param {Object} [defaults={}] Object of default key-value pairs.
- * @returns {Object}
- */
-module.exports.getElData = function (el, defaults) {
-  defaults = defaults || {};
-  var data = {};
-  Object.keys(defaults).forEach(copyAttribute);
-  function copyAttribute (key) {
-    if (el.hasAttribute(key)) {
-      data[key] = el.getAttribute(key);
-    }
-  }
-  return data;
-};
-
-/**
- * Retrieves querystring value.
- * @param  {String} name Name of querystring key.
- * @return {String}      Value
- */
-module.exports.getUrlParameter = function (name) {
-  // eslint-disable-next-line no-useless-escape
-  name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
-  var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
-  var results = regex.exec(location.search);
-  return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
-};
-
-/**
- * Detects whether context is within iframe.
- */
-module.exports.isIframed = function () {
-  return window.top !== window.self;
-};
-
-/**
- * Finds all elements under the element that have the isScene
- * property set to true
- */
-module.exports.findAllScenes = function (el) {
-  var matchingElements = [];
-  var allElements = el.getElementsByTagName('*');
-  for (var i = 0, n = allElements.length; i < n; i++) {
-    if (allElements[i].isScene) {
-      // Element exists with isScene set.
-      matchingElements.push(allElements[i]);
-    }
-  }
-  return matchingElements;
-};
-
-// Must be at bottom to avoid circular dependency.
-module.exports.srcLoader = _dereq_('./src-loader');
-
-/**
- * String split with cached result.
- */
-module.exports.split = (function () {
-  var splitCache = {};
-
-  return function (str, delimiter) {
-    if (!(delimiter in splitCache)) { splitCache[delimiter] = {}; }
-
-    if (str in splitCache[delimiter]) { return splitCache[delimiter][str]; }
-
-    splitCache[delimiter][str] = str.split(delimiter);
-    return splitCache[delimiter][str];
-  };
-})();
-
-},{"./bind":189,"./coordinates":190,"./debug":191,"./device":192,"./entity":193,"./forceCanvasResizeSafariMobile":194,"./material":196,"./object-pool":197,"./src-loader":198,"./styleParser":199,"./tracked-controls":200,"deep-assign":12,"object-assign":26}],196:[function(_dereq_,module,exports){
-var THREE = _dereq_('../lib/three');
-
-var HLS_MIMETYPES = ['application/x-mpegurl', 'application/vnd.apple.mpegurl'];
-
-/**
- * Update `material` texture property (usually but not always `map`)
- * from `data` property (usually but not always `src`)
- *
- * @param {object} shader - A-Frame shader instance.
- * @param {object} data
- */
-module.exports.updateMapMaterialFromData = function (materialName, dataName, shader, data) {
-  var el = shader.el;
-  var material = shader.material;
-  var src = data[dataName];
-
-  // Because a single material / shader may have multiple textures,
-  // we need to remember the source value for this data property
-  // to avoid redundant operations which can be expensive otherwise
-  // (e.g. video texture loads).
-  if (!shader.materialSrcs) { shader.materialSrcs = {}; }
-
-  if (!src) {
-    // Forget the prior material src.
-    delete shader.materialSrcs[materialName];
-    // Remove the texture.
-    setMap(null);
-    return;
-  }
-
-  // Don't process if material src hasn't changed.
-  if (src === shader.materialSrcs[materialName]) { return; }
-
-  // Remember the new src for this texture (there may be multiple).
-  shader.materialSrcs[materialName] = src;
-
-  // If the new material src is already a texture, just use it.
-  if (src instanceof THREE.Texture) { setMap(src); } else {
-    // Load texture for the new material src.
-    // (And check if we should still use it once available in callback.)
-    el.sceneEl.systems.material.loadTexture(src,
-      {src: src, repeat: data.repeat, offset: data.offset, npot: data.npot},
-      checkSetMap);
-  }
-
-  function checkSetMap (texture) {
-    // If the source has been changed, don't use loaded texture.
-    if (shader.materialSrcs[materialName] !== src) { return; }
-    setMap(texture);
-  }
-
-  function setMap (texture) {
-    material[materialName] = texture;
-    material.needsUpdate = true;
-    handleTextureEvents(el, texture);
-  }
-};
-
-/**
- * Update `material.map` given `data.src`. For standard and flat shaders.
- *
- * @param {object} shader - A-Frame shader instance.
- * @param {object} data
- */
-module.exports.updateMap = function (shader, data) {
-  return module.exports.updateMapMaterialFromData('map', 'src', shader, data);
-};
-
-/**
- * Updates the material's maps which give the illusion of extra geometry.
- *
- * @param {string} longType - The friendly name of the map from the component e.g. ambientOcclusionMap becomes aoMap in THREE.js
- * @param {object} shader - A-Frame shader instance
- * @param {object} data
- */
-module.exports.updateDistortionMap = function (longType, shader, data) {
-  var shortType = longType;
-  if (longType === 'ambientOcclusion') { shortType = 'ao'; }
-  var el = shader.el;
-  var material = shader.material;
-  var src = data[longType + 'Map'];
-  var info = {};
-  info.src = src;
-
-  // Pass through the repeat and offset to be handled by the material loader.
-  info.offset = data[longType + 'TextureOffset'];
-  info.repeat = data[longType + 'TextureRepeat'];
-  info.wrap = data[longType + 'TextureWrap'];
-
-  if (src) {
-    if (src === shader[longType + 'TextureSrc']) { return; }
-
-    // Texture added or changed.
-    shader[longType + 'TextureSrc'] = src;
-    el.sceneEl.systems.material.loadTexture(src, info, setMap);
-    return;
-  }
-
-  // Texture removed.
-  if (!material.map) { return; }
-  setMap(null);
-
-  function setMap (texture) {
-    material[shortType + 'Map'] = texture;
-    material.needsUpdate = true;
-    handleTextureEvents(el, texture);
-  }
-};
-
-/**
- * Emit event on entities on texture-related events.
- *
- * @param {Element} el - Entity.
- * @param {object} texture - three.js Texture.
- */
-function handleTextureEvents (el, texture) {
-  if (!texture) { return; }
-
-  el.emit('materialtextureloaded', {src: texture.image, texture: texture});
-
-  // Video events.
-  if (!texture.image || texture.image.tagName !== 'VIDEO') { return; }
-
-  texture.image.addEventListener('loadeddata', function emitVideoTextureLoadedDataAll () {
-    // Check to see if we need to use iOS 10 HLS shader.
-    // Only override the shader if it is stock shader that we know doesn't correct.
-    if (!el.components || !el.components.material) { return; }
-
-    if (texture.needsCorrectionBGRA && texture.needsCorrectionFlipY &&
-        ['standard', 'flat'].indexOf(el.components.material.data.shader) !== -1) {
-      el.setAttribute('material', 'shader', 'ios10hls');
-    }
-
-    el.emit('materialvideoloadeddata', {src: texture.image, texture: texture});
-  });
-  texture.image.addEventListener('ended', function emitVideoTextureEndedAll () {
-    // Works for non-looping videos only.
-    el.emit('materialvideoended', {src: texture.image, texture: texture});
-  });
-}
-module.exports.handleTextureEvents = handleTextureEvents;
-
-/**
- * Given video element src and type, guess whether stream is HLS.
- *
- * @param {string} src - src from video element (generally URL to content).
- * @param {string} type - type from video element (generally MIME type if present).
- */
-module.exports.isHLS = function (src, type) {
-  if (type && HLS_MIMETYPES.includes(type.toLowerCase())) { return true; }
-  if (src && src.toLowerCase().indexOf('.m3u8') > 0) { return true; }
-  return false;
-};
-
-},{"../lib/three":173}],197:[function(_dereq_,module,exports){
-/*
-  Adapted deePool by Kyle Simpson.
-  MIT License: http://getify.mit-license.org
-*/
-var EMPTY_SLOT = Object.freeze(Object.create(null));
-
-// Default object factory.
-function defaultObjectFactory () { return {}; }
-
-/**
- * Create a new pool.
- */
-module.exports.createPool = function createPool (objectFactory) {
-  var objPool = [];
-  var nextFreeSlot = null;  // Pool location to look for a free object to use.
-
-  objectFactory = objectFactory || defaultObjectFactory;
-
-  function use () {
-    var objToUse;
-    if (nextFreeSlot === null || nextFreeSlot === objPool.length) {
-      grow(objPool.length || 5);
-    }
-    objToUse = objPool[nextFreeSlot];
-    objPool[nextFreeSlot++] = EMPTY_SLOT;
-    clearObject(objToUse);
-    return objToUse;
-  }
-
-  function recycle (obj) {
-    if (!(obj instanceof Object)) { return; }
-    if (nextFreeSlot === null || nextFreeSlot === -1) {
-      objPool[objPool.length] = obj;
-      return;
-    }
-    objPool[--nextFreeSlot] = obj;
-  }
-
-  function grow (count) {
-    var currentLength;
-    var i;
-
-    count = count === undefined ? objPool.length : count;
-    if (count > 0 && nextFreeSlot == null) {
-      nextFreeSlot = 0;
-    }
-
-    if (count > 0) {
-      currentLength = objPool.length;
-      objPool.length += Number(count);
-      for (i = currentLength; i < objPool.length; i++) {
-        // Add new obj to pool.
-        objPool[i] = objectFactory();
-      }
-    }
-
-    return objPool.length;
-  }
-
-  function size () {
-    return objPool.length;
-  }
-
-  return {
-    grow: grow,
-    pool: objPool,
-    recycle: recycle,
-    size: size,
-    use: use
-  };
-};
-
-function clearObject (obj) {
-  var key;
-  if (!(obj.constructor === Object)) { return; }
-  for (key in obj) { obj[key] = undefined; }
-}
-module.exports.clearObject = clearObject;
-
-},{}],198:[function(_dereq_,module,exports){
-/* global Image, XMLHttpRequest */
-var debug = _dereq_('./debug');
-
-var warn = debug('utils:src-loader:warn');
-
-/**
- * Validate a texture, either as a selector or as a URL.
- * Detects whether `src` is pointing to an image or video and invokes the appropriate
- * callback.
- *
- * `src` will be passed into the callback
- *
- * @params {string|Element} src - URL or media element.
- * @params {function} isImageCb - callback if texture is an image.
- * @params {function} isVideoCb - callback if texture is a video.
- */
-function validateSrc (src, isImageCb, isVideoCb) {
-  checkIsImage(src, function isAnImageUrl (isImage) {
-    if (isImage) {
-      isImageCb(src);
-      return;
-    }
-    isVideoCb(src);
-  });
-}
-
-/**
- * Validates six images as a cubemap, either as selector or comma-separated
- * URLs.
- *
- * @param {string} src - A selector or comma-separated image URLs. Image URLs
-          must be wrapped by `url()`.
- * @param {string} src - A selector or comma-separated image URLs. Image URLs
-          must be wrapped by `url()`.
- */
-function validateCubemapSrc (src, cb) {
-  var aCubemap;
-  var cubemapSrcRegex = '';
-  var i;
-  var urls;
-  var validatedUrls = [];
-
-  for (i = 0; i < 5; i++) {
-    cubemapSrcRegex += '(url\\((?:[^\\)]+)\\),\\s*)';
-  }
-  cubemapSrcRegex += '(url\\((?:[^\\)]+)\\)\\s*)';
-  urls = src.match(new RegExp(cubemapSrcRegex));
-
-  // `src` is a comma-separated list of URLs.
-  // In this case, re-use validateSrc for each side of the cube.
-  function isImageCb (url) {
-    validatedUrls.push(url);
-    if (validatedUrls.length === 6) {
-      cb(validatedUrls);
-    }
-  }
-  if (urls) {
-    for (i = 1; i < 7; i++) {
-      validateSrc(parseUrl(urls[i]), isImageCb);
-    }
-    return;
-  }
-
-  // `src` is a query selector to <a-cubemap> containing six $([src])s.
-  aCubemap = validateAndGetQuerySelector(src);
-  if (!aCubemap) { return; }
-  if (aCubemap.tagName === 'A-CUBEMAP' && aCubemap.srcs) {
-    return cb(aCubemap.srcs);
-  }
-  // Else if aCubeMap is not a <a-cubemap>.
-  warn('Selector "%s" does not point to <a-cubemap>', src);
-}
-
-/**
- * Parses src from `url(src)`.
- * @param  {string} src - String to parse.
- * @return {string} The parsed src, if parseable.
- */
-function parseUrl (src) {
-  var parsedSrc = src.match(/\url\((.+)\)/);
-  if (!parsedSrc) { return; }
-  return parsedSrc[1];
-}
-
-/**
- * Call back whether `src` is an image.
- *
- * @param {string|Element} src - URL or element that will be tested.
- * @param {function} onResult - Callback with whether `src` is an image.
- */
-function checkIsImage (src, onResult) {
-  var request;
-
-  if (src.tagName) {
-    onResult(src.tagName === 'IMG');
-    return;
-  }
-  request = new XMLHttpRequest();
-
-  // Try to send HEAD request to check if image first.
-  request.open('HEAD', src);
-  request.addEventListener('load', function (event) {
-    var contentType;
-    if (request.status >= 200 && request.status < 300) {
-      contentType = request.getResponseHeader('Content-Type');
-      if (contentType == null) {
-        checkIsImageFallback(src, onResult);
-      } else {
-        if (contentType.startsWith('image')) {
-          onResult(true);
-        } else {
-          onResult(false);
-        }
-      }
-    } else {
-      checkIsImageFallback(src, onResult);
-    }
-    request.abort();
-  });
-  request.send();
-}
-
-function checkIsImageFallback (src, onResult) {
-  var tester = new Image();
-  tester.addEventListener('load', onLoad);
-  function onLoad () { onResult(true); }
-  tester.addEventListener('error', onError);
-  function onError () { onResult(false); }
-  tester.src = src;
-}
-
-/**
- * Query and validate a query selector,
- *
- * @param  {string} selector - DOM selector.
- * @return {object|null|undefined} Selected DOM element if exists.
-           null if query yields no results.
-           undefined if `selector` is not a valid selector.
- */
-function validateAndGetQuerySelector (selector) {
-  try {
-    var el = document.querySelector(selector);
-    if (!el) {
-      warn('No element was found matching the selector: "%s"', selector);
-    }
-    return el;
-  } catch (e) {  // Capture exception if it's not a valid selector.
-    warn('"%s" is not a valid selector', selector);
-    return undefined;
-  }
-}
-
-module.exports = {
-  parseUrl: parseUrl,
-  validateSrc: validateSrc,
-  validateCubemapSrc: validateCubemapSrc
-};
-
-},{"./debug":191}],199:[function(_dereq_,module,exports){
-/* Utils for parsing style-like strings (e.g., "primitive: box; width: 5; height: 4.5"). */
-var styleParser = _dereq_('style-attr');
-
-/**
- * Deserializes style-like string into an object of properties.
- *
- * @param {string} value - HTML attribute value.
- * @returns {object} Property data.
- */
-module.exports.parse = function (value) {
-  var parsedData;
-  if (typeof value !== 'string') { return value; }
-  parsedData = styleParser.parse(value);
-  // The style parser returns an object { "" : "test"} when fed a string
-  if (parsedData['']) { return value; }
-  return transformKeysToCamelCase(parsedData);
-};
-
-/**
- * Serialize an object of properties into a style-like string.
- *
- * @param {object} data - Property data.
- * @returns {string}
- */
-module.exports.stringify = function (data) {
-  if (typeof data === 'string') { return data; }
-  return styleParser.stringify(data);
-};
-
-/**
- * Converts string from hyphen to camelCase.
- *
- * @param {string} str - String to camelCase.
- * @return {string} CamelCased string.
- */
-function toCamelCase (str) {
-  return str.replace(/-([a-z])/g, camelCase);
-  function camelCase (g) { return g[1].toUpperCase(); }
-}
-module.exports.toCamelCase = toCamelCase;
-
-/**
- * Converts object's keys from hyphens to camelCase (e.g., `max-value` to
- * `maxValue`).
- *
- * @param {object} obj - The object to camelCase keys.
- * @return {object} The object with keys camelCased.
- */
-function transformKeysToCamelCase (obj) {
-  var keys = Object.keys(obj);
-  var camelCaseObj = {};
-  keys.forEach(function (key) {
-    var camelCaseKey = toCamelCase(key);
-    camelCaseObj[camelCaseKey] = obj[key];
-  });
-  return camelCaseObj;
-}
-module.exports.transformKeysToCamelCase = transformKeysToCamelCase;
-
-},{"style-attr":35}],200:[function(_dereq_,module,exports){
-var DEFAULT_HANDEDNESS = _dereq_('../constants').DEFAULT_HANDEDNESS;
-var AXIS_LABELS = ['x', 'y', 'z', 'w'];
-var NUM_HANDS = 2; // Number of hands in a pair. Should always be 2.
-
-/**
- * Called on controller component `.play` handlers.
- * Check if controller matches parameters and inject tracked-controls component.
- * Handle event listeners.
- * Generate controllerconnected or controllerdisconnected events.
- *
- * @param {object} component - Tracked controls component.
- * @param {object} idPrefix - Prefix to match in gamepad id if any.
- * @param {object} queryObject - Map of values to match.
- */
-module.exports.checkControllerPresentAndSetup = function (component, idPrefix, queryObject) {
-  var el = component.el;
-  var isPresent = isControllerPresent(component, idPrefix, queryObject);
-
-  // If component was previously paused and now playing, re-add event listeners.
-  // Handle the event listeners here since this helper method is control of calling
-  // `.addEventListeners` and `.removeEventListeners`.
-  if (component.controllerPresent && !component.controllerEventsActive) {
-    component.addEventListeners();
-  }
-
-  // Nothing changed, no need to do anything.
-  if (isPresent === component.controllerPresent) { return isPresent; }
-
-  component.controllerPresent = isPresent;
-
-  // Update controller presence.
-  if (isPresent) {
-    component.injectTrackedControls();
-    component.addEventListeners();
-    el.emit('controllerconnected', {name: component.name, component: component});
-  } else {
-    component.removeEventListeners();
-    el.emit('controllerdisconnected', {name: component.name, component: component});
-  }
-};
-
-/**
- * Enumerate controller (that have pose) and check if they match parameters.
- *
- * @param {object} component - Tracked controls component.
- * @param {object} idPrefix - Prefix to match in gamepad id if any.
- * @param {object} queryObject - Map of values to match.
- */
-function isControllerPresent (component, idPrefix, queryObject) {
-  var gamepads;
-  var sceneEl = component.el.sceneEl;
-  var trackedControlsSystem;
-  var filterControllerIndex = queryObject.index || 0;
-
-  if (!idPrefix) { return false; }
-
-  trackedControlsSystem = sceneEl && sceneEl.systems['tracked-controls'];
-  if (!trackedControlsSystem) { return false; }
-
-  gamepads = trackedControlsSystem.controllers;
-  if (!gamepads.length) { return false; }
-
-  return !!findMatchingController(gamepads, null, idPrefix, queryObject.hand, filterControllerIndex);
-}
-
-module.exports.isControllerPresent = isControllerPresent;
-
-/**
- * Walk through the given controllers to find any where the device ID equals filterIdExact, or startWith filterIdPrefix.
- * A controller where this considered true is considered a 'match'.
- *
- * For each matching controller:
- *   If filterHand is set, and the controller:
- *     is handed, we further verify that controller.hand equals filterHand.
- *     is unhanded (controller.hand is ''), we skip until we have found a number of matching controllers that equals filterControllerIndex
- *   If filterHand is not set, we skip until we have found the nth matching controller, where n equals filterControllerIndex
- *
- * The method should be called with one of: [filterIdExact, filterIdPrefix] AND one or both of: [filterHand, filterControllerIndex]
- *
- * @param {object} controllers - Array of gamepads to search
- * @param {string} filterIdExact - If set, used to find controllers with id === this value
- * @param {string} filterIdPrefix - If set, used to find controllers with id startsWith this value
- * @param {object} filterHand - If set, further filters controllers with matching 'hand' property
- * @param {object} filterControllerIndex - Find the nth matching controller, where n equals filterControllerIndex. defaults to 0.
- */
-function findMatchingController (controllers, filterIdExact, filterIdPrefix, filterHand, filterControllerIndex) {
-  var controller;
-  var i;
-  var matchingControllerOccurence = 0;
-  var targetControllerMatch = filterControllerIndex || 0;
-
-  for (i = 0; i < controllers.length; i++) {
-    controller = controllers[i];
-    // Determine if the controller ID matches our criteria
-    if (filterIdPrefix && controller.id.indexOf(filterIdPrefix) === -1) { continue; }
-    if (!filterIdPrefix && controller.id !== filterIdExact) { continue; }
-
-    // If the hand filter and controller handedness are defined we compare them.
-    if (filterHand && controller.hand && filterHand !== controller.hand) { continue; }
-
-    // If we have detected an unhanded controller and the component was asking for a particular hand,
-    // we need to treat the controllers in the array as pairs of controllers. This effectively means that we
-    // need to skip NUM_HANDS matches for each controller number, instead of 1.
-    if (filterHand && !controller.hand) {
-      targetControllerMatch = NUM_HANDS * filterControllerIndex + ((filterHand === DEFAULT_HANDEDNESS) ? 0 : 1);
-    }
-
-    // We are looking for the nth occurence of a matching controller (n equals targetControllerMatch).
-    if (matchingControllerOccurence === targetControllerMatch) {
-      return controller;
-    }
-    ++matchingControllerOccurence;
-  }
-  return undefined;
-}
-
-module.exports.findMatchingController = findMatchingController;
-
-/**
- * Emit specific `moved` event(s) if axes changed based on original axismoved event.
- *
- * @param {object} component - Controller component in use.
- * @param {array} axesMapping - For example `{thumbstick: [0, 1]}`.
- * @param {object} evt - Event to process.
- */
-module.exports.emitIfAxesChanged = function (component, axesMapping, evt) {
-  var axes;
-  var buttonTypes;
-  var changed;
-  var detail;
-  var i;
-  var j;
-
-  buttonTypes = Object.keys(axesMapping);
-  for (i = 0; i < buttonTypes.length; i++) {
-    axes = axesMapping[buttonTypes[i]];
-
-    changed = false;
-    for (j = 0; j < axes.length; j++) {
-      if (evt.detail.changed[axes[j]]) { changed = true; }
-    }
-
-    if (!changed) { continue; }
-
-    // Axis has changed. Emit the specific moved event with axis values in detail.
-    detail = {};
-    for (j = 0; j < axes.length; j++) {
-      detail[AXIS_LABELS[j]] = evt.detail.axis[axes[j]];
-    }
-    component.el.emit(buttonTypes[i] + 'moved', detail);
-  }
-};
-
-/**
- * Handle a button event and reemits the events.
- *
- * @param {string} id - id of the button.
- * @param {string} evtName - name of the reemitted event
- * @param {object} component - reference to the component
- * @param {string} hand - handedness of the controller: left or right.
- */
-module.exports.onButtonEvent = function (id, evtName, component, hand) {
-  var mapping = hand ? component.mapping[hand] : component.mapping;
-  var buttonName = mapping.buttons[id];
-  component.el.emit(buttonName + evtName);
-  if (component.updateModel) {
-    component.updateModel(buttonName, evtName);
-  }
-};
-
-},{"../constants":116}],201:[function(_dereq_,module,exports){
-window.glStats = function () {
-
-    var _rS = null;
-
-    var _totalDrawArraysCalls = 0,
-        _totalDrawElementsCalls = 0,
-        _totalUseProgramCalls = 0,
-        _totalFaces = 0,
-        _totalVertices = 0,
-        _totalPoints = 0,
-        _totalBindTexures = 0;
-
-    function _h ( f, c ) {
-        return function () {
-            c.apply( this, arguments );
-            f.apply( this, arguments );
-        };
-    }
-
-    WebGLRenderingContext.prototype.drawArrays = _h( WebGLRenderingContext.prototype.drawArrays, function () {
-        _totalDrawArraysCalls++;
-        if ( arguments[ 0 ] == this.POINTS ) _totalPoints += arguments[ 2 ];
-        else _totalVertices += arguments[ 2 ];
-    } );
-
-    WebGLRenderingContext.prototype.drawElements = _h( WebGLRenderingContext.prototype.drawElements, function () {
-        _totalDrawElementsCalls++;
-        _totalFaces += arguments[ 1 ] / 3;
-        _totalVertices += arguments[ 1 ];
-    } );
-
-    WebGLRenderingContext.prototype.useProgram = _h( WebGLRenderingContext.prototype.useProgram, function () {
-        _totalUseProgramCalls++;
-    } );
-
-    WebGLRenderingContext.prototype.bindTexture = _h( WebGLRenderingContext.prototype.bindTexture, function () {
-        _totalBindTexures++;
-    } );
-
-    var _values = {
-        allcalls: {
-            over: 3000,
-            caption: 'Calls (hook)'
-        },
-        drawelements: {
-            caption: 'drawElements (hook)'
-        },
-        drawarrays: {
-            caption: 'drawArrays (hook)'
-        }
-    };
-
-    var _groups = [ {
-        caption: 'WebGL',
-        values: [ 'allcalls', 'drawelements', 'drawarrays', 'useprogram', 'bindtexture', 'glfaces', 'glvertices', 'glpoints' ]
-    } ];
-
-    var _fractions = [ {
-        base: 'allcalls',
-        steps: [ 'drawelements', 'drawarrays' ]
-    } ];
-
-    function _update () {
-        _rS( 'allcalls' ).set( _totalDrawArraysCalls + _totalDrawElementsCalls );
-        _rS( 'drawElements' ).set( _totalDrawElementsCalls );
-        _rS( 'drawArrays' ).set( _totalDrawArraysCalls );
-        _rS( 'bindTexture' ).set( _totalBindTexures );
-        _rS( 'useProgram' ).set( _totalUseProgramCalls );
-        _rS( 'glfaces' ).set( _totalFaces );
-        _rS( 'glvertices' ).set( _totalVertices );
-        _rS( 'glpoints' ).set( _totalPoints );
-    }
-
-    function _start () {
-        _totalDrawArraysCalls = 0;
-        _totalDrawElementsCalls = 0;
-        _totalUseProgramCalls = 0;
-        _totalFaces = 0;
-        _totalVertices = 0;
-        _totalPoints = 0;
-        _totalBindTexures = 0;
-    }
-
-    function _end () {}
-
-    function _attach ( r ) {
-        _rS = r;
-    }
-
-    return {
-        update: _update,
-        start: _start,
-        end: _end,
-        attach: _attach,
-        values: _values,
-        groups: _groups,
-        fractions: _fractions
-    };
-
-};
-
-window.threeStats = function ( renderer ) {
-
-    var _rS = null;
-
-    var _values = {
-        'renderer.info.memory.geometries': {
-            caption: 'Geometries'
-        },
-        'renderer.info.memory.textures': {
-            caption: 'Textures'
-        },
-        'renderer.info.programs': {
-            caption: 'Programs'
-        },
-        'renderer.info.render.calls': {
-            caption: 'Calls'
-        },
-        'renderer.info.render.faces': {
-            caption: 'Faces',
-            over: 1000
-        },
-        'renderer.info.render.points': {
-            caption: 'Points'
-        },
-        'renderer.info.render.vertices': {
-            caption: 'Vertices'
-        }
-    };
-
-    var _groups = [ {
-        caption: 'Three.js - Memory',
-        values: [ 'renderer.info.memory.geometries', 'renderer.info.programs', 'renderer.info.memory.textures' ]
-    }, {
-        caption: 'Three.js - Render',
-        values: [ 'renderer.info.render.calls', 'renderer.info.render.faces', 'renderer.info.render.points', 'renderer.info.render.vertices' ]
-    } ];
-
-    var _fractions = [];
-
-    function _update () {
-
-        _rS( 'renderer.info.memory.geometries' ).set( renderer.info.memory.geometries );
-        _rS( 'renderer.info.programs' ).set( renderer.info.programs.length );
-        _rS( 'renderer.info.memory.textures' ).set( renderer.info.memory.textures );
-        _rS( 'renderer.info.render.calls' ).set( renderer.info.render.calls );
-        _rS( 'renderer.info.render.faces' ).set( renderer.info.render.faces );
-        _rS( 'renderer.info.render.points' ).set( renderer.info.render.points );
-        _rS( 'renderer.info.render.vertices' ).set( renderer.info.render.vertices );
-
-    }
-
-    function _start () {}
-
-    function _end () {}
-
-    function _attach ( r ) {
-        _rS = r;
-    }
-
-    return {
-        update: _update,
-        start: _start,
-        end: _end,
-        attach: _attach,
-        values: _values,
-        groups: _groups,
-        fractions: _fractions
-    };
-
-};
-
-/*
- *   From https://github.com/paulirish/memory-stats.js
- */
-
-window.BrowserStats = function () {
-
-    var _rS = null;
-
-    var _usedJSHeapSize = 0,
-        _totalJSHeapSize = 0;
-
-    if ( window.performance && !performance.memory ) {
-        performance.memory = {
-            usedJSHeapSize: 0,
-            totalJSHeapSize: 0
-        };
-    }
-
-    if ( performance.memory.totalJSHeapSize === 0 ) {
-        console.warn( 'totalJSHeapSize === 0... performance.memory is only available in Chrome .' );
-    }
-
-    var _values = {
-        memory: {
-            caption: 'Used Memory',
-            average: true,
-            avgMs: 1000,
-            over: 22
-        },
-        total: {
-            caption: 'Total Memory'
-        }
-    };
-
-    var _groups = [ {
-        caption: 'Browser',
-        values: [ 'memory', 'total' ]
-    } ];
-
-    var _fractions = [ {
-        base: 'total',
-        steps: [ 'memory' ]
-    } ];
-
-    var log1024 = Math.log( 1024 );
-
-    function _size ( v ) {
-
-        var precision = 100; //Math.pow(10, 2);
-        var i = Math.floor( Math.log( v ) / log1024 );
-        return Math.round( v * precision / Math.pow( 1024, i ) ) / precision; // + ' ' + sizes[i];
-
-    }
-
-    function _update () {
-        _usedJSHeapSize = _size( performance.memory.usedJSHeapSize );
-        _totalJSHeapSize = _size( performance.memory.totalJSHeapSize );
-
-        _rS( 'memory' ).set( _usedJSHeapSize );
-        _rS( 'total' ).set( _totalJSHeapSize );
-    }
-
-    function _start () {
-        _usedJSHeapSize = 0;
-    }
-
-    function _end () {}
-
-    function _attach ( r ) {
-        _rS = r;
-    }
-
-    return {
-        update: _update,
-        start: _start,
-        end: _end,
-        attach: _attach,
-        values: _values,
-        groups: _groups,
-        fractions: _fractions
-    };
-
-};
-
-if (typeof module === 'object') {
-  module.exports = {
-    glStats: window.glStats,
-    threeStats: window.threeStats,
-    BrowserStats: window.BrowserStats
-  };
-}
-
-},{}],202:[function(_dereq_,module,exports){
-// performance.now() polyfill from https://gist.github.com/paulirish/5438650
-'use strict';
-
-( function () {
-
-    if ( 'performance' in window == false ) {
-        window.performance = {};
-    }
-
-    var performance = window.performance;
-
-    if ( 'now' in performance == false ) {
-
-        var nowOffset = Date.now();
-
-        if ( performance.timing && performance.timing.navigationStart ) {
-            nowOffset = performance.timing.navigationStart;
-        }
-
-        performance.now = function now () {
-            return Date.now() - nowOffset;
-        };
-
-    }
-
-    if( !performance.mark ) {
-        performance.mark = function(){}
-    }
-
-    if( !performance.measure ) {
-        performance.measure = function(){}
-    }
-
-} )();
-
-window.rStats = function rStats ( settings ) {
-
-    function iterateKeys ( array, callback ) {
-        var keys = Object.keys( array );
-        for ( var j = 0, l = keys.length; j < l; j++ ) {
-            callback( keys[ j ] );
-        }
-    }
-
-    function importCSS ( url ) {
-
-        var element = document.createElement( 'link' );
-        element.href = url;
-        element.rel = 'stylesheet';
-        element.type = 'text/css';
-        document.getElementsByTagName( 'head' )[ 0 ].appendChild( element );
-
-    }
-
-    var _settings = settings || {};
-    var _colours = _settings.colours || [ '#850700', '#c74900', '#fcb300', '#284280', '#4c7c0c' ];
-
-    var _cssFont = 'https://fonts.googleapis.com/css?family=Roboto+Condensed:400,700,300';
-    var _cssRStats = ( _settings.CSSPath ? _settings.CSSPath : '' ) + 'rStats.css';
-
-    var _css = _settings.css || [ _cssFont, _cssRStats ];
-    _css.forEach(function (uri) {
-        importCSS( uri );
-    });
-
-    if ( !_settings.values ) _settings.values = {};
-
-    var _base, _div, _elHeight = 10, _elWidth = 200;
-    var _perfCounters = {};
-
-
-    function Graph ( _dom, _id, _defArg ) {
-
-        var _def = _defArg || {};
-        var _canvas = document.createElement( 'canvas' ),
-            _ctx = _canvas.getContext( '2d' ),
-            _max = 0,
-            _current = 0;
-
-        var c = _def.color ? _def.color : '#666666';
-
-        var _dotCanvas = document.createElement( 'canvas' ),
-            _dotCtx = _dotCanvas.getContext( '2d' );
-        _dotCanvas.width = 1;
-        _dotCanvas.height = 2 * _elHeight;
-        _dotCtx.fillStyle = '#444444';
-        _dotCtx.fillRect( 0, 0, 1, 2 * _elHeight );
-        _dotCtx.fillStyle = c;
-        _dotCtx.fillRect( 0, _elHeight, 1, _elHeight );
-        _dotCtx.fillStyle = '#ffffff';
-        _dotCtx.globalAlpha = 0.5;
-        _dotCtx.fillRect( 0, _elHeight, 1, 1 );
-        _dotCtx.globalAlpha = 1;
-
-        var _alarmCanvas = document.createElement( 'canvas' ),
-            _alarmCtx = _alarmCanvas.getContext( '2d' );
-        _alarmCanvas.width = 1;
-        _alarmCanvas.height = 2 * _elHeight;
-        _alarmCtx.fillStyle = '#444444';
-        _alarmCtx.fillRect( 0, 0, 1, 2 * _elHeight );
-        _alarmCtx.fillStyle = '#b70000';
-        _alarmCtx.fillRect( 0, _elHeight, 1, _elHeight );
-        _alarmCtx.globalAlpha = 0.5;
-        _alarmCtx.fillStyle = '#ffffff';
-        _alarmCtx.fillRect( 0, _elHeight, 1, 1 );
-        _alarmCtx.globalAlpha = 1;
-
-        function _init () {
-
-            _canvas.width = _elWidth;
-            _canvas.height = _elHeight;
-            _canvas.style.width = _canvas.width + 'px';
-            _canvas.style.height = _canvas.height + 'px';
-            _canvas.className = 'rs-canvas';
-            _dom.appendChild( _canvas );
-
-            _ctx.fillStyle = '#444444';
-            _ctx.fillRect( 0, 0, _canvas.width, _canvas.height );
-
-        }
-
-        function _draw ( v, alarm ) {
-            _current += ( v - _current ) * 0.1;
-            _max *= 0.99;
-            if ( _current > _max ) _max = _current;
-            _ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );
-            if ( alarm ) {
-                _ctx.drawImage( _alarmCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );
-            } else {
-                _ctx.drawImage( _dotCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );
-            }
-        }
-
-        _init();
-
-        return {
-            draw: _draw
-        };
-
-    }
-
-    function StackGraph ( _dom, _num ) {
-
-        var _canvas = document.createElement( 'canvas' ),
-            _ctx = _canvas.getContext( '2d' );
-
-        function _init () {
-
-            _canvas.width = _elWidth;
-            _canvas.height = _elHeight * _num;
-            _canvas.style.width = _canvas.width + 'px';
-            _canvas.style.height = _canvas.height + 'px';
-            _canvas.className = 'rs-canvas';
-            _dom.appendChild( _canvas );
-
-            _ctx.fillStyle = '#444444';
-            _ctx.fillRect( 0, 0, _canvas.width, _canvas.height );
-
-        }
-
-        function _draw ( v ) {
-            _ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );
-            var th = 0;
-            iterateKeys( v, function ( j ) {
-                var h = v[ j ] * _canvas.height;
-                _ctx.fillStyle = _colours[ j ];
-                _ctx.fillRect( _canvas.width - 1, th, 1, h );
-                th += h;
-            } );
-        }
-
-        _init();
-
-        return {
-            draw: _draw
-        };
-
-    }
-
-    function PerfCounter ( id, group ) {
-
-        var _id = id,
-            _time,
-            _value = 0,
-            _total = 0,
-            _averageValue = 0,
-            _accumValue = 0,
-            _accumStart = performance.now(),
-            _accumSamples = 0,
-            _dom = document.createElement( 'div' ),
-            _spanId = document.createElement( 'span' ),
-            _spanValue = document.createElement( 'div' ),
-            _spanValueText = document.createTextNode( '' ),
-            _def = _settings ? _settings.values[ _id.toLowerCase() ] : null,
-            _graph = new Graph( _dom, _id, _def ),
-            _started = false;
-
-        _spanId.className = 'rs-counter-id';
-        _spanId.textContent = ( _def && _def.caption ) ? _def.caption : _id;
-
-        _spanValue.className = 'rs-counter-value';
-        _spanValue.appendChild( _spanValueText );
-
-        _dom.appendChild( _spanId );
-        _dom.appendChild( _spanValue );
-        if ( group ) group.div.appendChild( _dom );
-        else _div.appendChild( _dom );
-
-        _time = performance.now();
-
-        function _average ( v ) {
-            if ( _def && _def.average ) {
-                _accumValue += v;
-                _accumSamples++;
-                var t = performance.now();
-                if ( t - _accumStart >= ( _def.avgMs || 1000 ) ) {
-                    _averageValue = _accumValue / _accumSamples;
-                    _accumValue = 0;
-                    _accumStart = t;
-                    _accumSamples = 0;
-                }
-            }
-        }
-
-        function _start () {
-            _time = performance.now();
-            if( _settings.userTimingAPI ) performance.mark( _id + '-start' );
-            _started = true;
-        }
-
-        function _end () {
-            _value = performance.now() - _time;
-            if( _settings.userTimingAPI ) {
-                performance.mark( _id + '-end' );
-                if( _started ) {
-                    performance.measure( _id, _id + '-start', _id + '-end' );
-                }
-            }
-            _average( _value );
-        }
-
-        function _tick () {
-            _end();
-            _start();
-        }
-
-        function _draw () {
-            var v = ( _def && _def.average ) ? _averageValue : _value;
-            _spanValueText.nodeValue = Math.round( v * 100 ) / 100;
-            var a = ( _def && ( ( _def.below && _value < _def.below ) || ( _def.over && _value > _def.over ) ) );
-            _graph.draw( _value, a );
-            _dom.className = a ? 'rs-counter-base alarm' : 'rs-counter-base';
-
-        }
-
-        function _frame () {
-            var t = performance.now();
-            var e = t - _time;
-            _total++;
-            if ( e > 1000 ) {
-                if ( _def && _def.interpolate === false ) {
-                    _value = _total;
-                } else {
-                    _value = _total * 1000 / e;
-                }
-                _total = 0;
-                _time = t;
-                _average( _value );
-            }
-        }
-
-        function _set ( v ) {
-            _value = v;
-            _average( _value );
-        }
-
-        return {
-            set: _set,
-            start: _start,
-            tick: _tick,
-            end: _end,
-            frame: _frame,
-            value: function () {
-                return _value;
-            },
-            draw: _draw
-        };
-
-    }
-
-    function sample () {
-
-        var _value = 0;
-
-        function _set ( v ) {
-            _value = v;
-        }
-
-        return {
-            set: _set,
-            value: function () {
-                return _value;
-            }
-        };
-
-    }
-
-    function _perf ( idArg ) {
-
-        var id = idArg.toLowerCase();
-        if ( id === undefined ) id = 'default';
-        if ( _perfCounters[ id ] ) return _perfCounters[ id ];
-
-        var group = null;
-        if ( _settings && _settings.groups ) {
-            iterateKeys( _settings.groups, function ( j ) {
-                var g = _settings.groups[ parseInt( j, 10 ) ];
-                if ( !group && g.values.indexOf( id.toLowerCase() ) !== -1 ) {
-                    group = g;
-                }
-            } );
-        }
-
-        var p = new PerfCounter( id, group );
-        _perfCounters[ id ] = p;
-        return p;
-
-    }
-
-    function _init () {
-
-        if ( _settings.plugins ) {
-            if ( !_settings.values ) _settings.values = {};
-            if ( !_settings.groups ) _settings.groups = [];
-            if ( !_settings.fractions ) _settings.fractions = [];
-            for ( var j = 0; j < _settings.plugins.length; j++ ) {
-                _settings.plugins[ j ].attach( _perf );
-                iterateKeys( _settings.plugins[ j ].values, function ( k ) {
-                    _settings.values[ k ] = _settings.plugins[ j ].values[ k ];
-                } );
-                _settings.groups = _settings.groups.concat( _settings.plugins[ j ].groups );
-                _settings.fractions = _settings.fractions.concat( _settings.plugins[ j ].fractions );
-            }
-        } else {
-            _settings.plugins = {};
-        }
-
-        _base = document.createElement( 'div' );
-        _base.className = 'rs-base';
-        _div = document.createElement( 'div' );
-        _div.className = 'rs-container';
-        _div.style.height = 'auto';
-        _base.appendChild( _div );
-        document.body.appendChild( _base );
-
-        if ( !_settings ) return;
-
-        if ( _settings.groups ) {
-            iterateKeys( _settings.groups, function ( j ) {
-                var g = _settings.groups[ parseInt( j, 10 ) ];
-                var div = document.createElement( 'div' );
-                div.className = 'rs-group';
-                g.div = div;
-                var h1 = document.createElement( 'h1' );
-                h1.textContent = g.caption;
-                h1.addEventListener( 'click', function ( e ) {
-                    this.classList.toggle( 'hidden' );
-                    e.preventDefault();
-                }.bind( div ) );
-                _div.appendChild( h1 );
-                _div.appendChild( div );
-            } );
-        }
-
-        if ( _settings.fractions ) {
-            iterateKeys( _settings.fractions, function ( j ) {
-                var f = _settings.fractions[ parseInt( j, 10 ) ];
-                var div = document.createElement( 'div' );
-                div.className = 'rs-fraction';
-                var legend = document.createElement( 'div' );
-                legend.className = 'rs-legend';
-
-                var h = 0;
-                iterateKeys( _settings.fractions[ j ].steps, function ( k ) {
-                    var p = document.createElement( 'p' );
-                    p.textContent = _settings.fractions[ j ].steps[ k ];
-                    p.style.color = _colours[ h ];
-                    legend.appendChild( p );
-                    h++;
-                } );
-                div.appendChild( legend );
-                div.style.height = h * _elHeight + 'px';
-                f.div = div;
-                var graph = new StackGraph( div, h );
-                f.graph = graph;
-                _div.appendChild( div );
-            } );
-        }
-
-    }
-
-    function _update () {
-
-        iterateKeys( _settings.plugins, function ( j ) {
-            _settings.plugins[ j ].update();
-        } );
-
-        iterateKeys( _perfCounters, function ( j ) {
-            _perfCounters[ j ].draw();
-        } );
-
-        if ( _settings && _settings.fractions ) {
-            iterateKeys( _settings.fractions, function ( j ) {
-                var f = _settings.fractions[ parseInt( j, 10 ) ];
-                var v = [];
-                var base = _perfCounters[ f.base.toLowerCase() ];
-                if ( base ) {
-                    base = base.value();
-                    iterateKeys( _settings.fractions[ j ].steps, function ( k ) {
-                        var s = _settings.fractions[ j ].steps[ parseInt( k, 10 ) ].toLowerCase();
-                        var val = _perfCounters[ s ];
-                        if ( val ) {
-                            v.push( val.value() / base );
-                        }
-                    } );
-                }
-                f.graph.draw( v );
-            } );
-        }
-
-        /*if( _height != _div.clientHeight ) {
-            _height = _div.clientHeight;
-            _base.style.height = _height + 2 * _elHeight + 'px';
-        console.log( _base.clientHeight );
-        }*/
-
-    }
-
-    _init();
-
-    return function ( id ) {
-        if ( id ) return _perf( id );
-        return {
-            element: _base,
-            update: _update
-        };
-    };
-
-}
-
-if (typeof module === 'object') {
-  module.exports = window.rStats;
-}
-
-},{}],203:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = {};
-
-Util.base64 = function(mimeType, base64) {
-  return 'data:' + mimeType + ';base64,' + base64;
-};
-
-Util.isMobile = function() {
-  var check = false;
-  (function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);
-  return check;
-};
-
-Util.isIOS = function() {
-  return /(iPad|iPhone|iPod)/g.test(navigator.userAgent);
-};
-
-Util.isIFrame = function() {
-  try {
-    return window.self !== window.top;
-  } catch (e) {
-    return true;
-  }
-};
-
-Util.appendQueryParameter = function(url, key, value) {
-  // Determine delimiter based on if the URL already GET parameters in it.
-  var delimiter = (url.indexOf('?') < 0 ? '?' : '&');
-  url += delimiter + key + '=' + value;
-  return url;
-};
-
-// From http://goo.gl/4WX3tg
-Util.getQueryParameter = function(name) {
-  name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
-  var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
-      results = regex.exec(location.search);
-  return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
-};
-
-Util.isLandscapeMode = function() {
-  return (window.orientation == 90 || window.orientation == -90);
-};
-
-
-module.exports = Util;
-
-},{}],204:[function(_dereq_,module,exports){
-/*
- * Copyright 2015 Google Inc. All Rights Reserved.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-var Util = _dereq_('./util.js');
-
-/**
- * Android and iOS compatible wakelock implementation.
- *
- * Refactored thanks to dkovalev@.
- */
-function AndroidWakeLock() {
-  var video = document.createElement('video');
-
-  video.addEventListener('ended', function() {
-    video.play();
-  });
-
-  this.request = function() {
-    if (video.paused) {
-      // Base64 version of videos_src/no-sleep-60s.webm.
-      video.src = Util.base64('video/webm', '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');
-      video.play();
-    }
-  };
-
-  this.release = function() {
-    video.pause();
-    video.src = '';
-  };
-}
-
-function iOSWakeLock() {
-  var timer = null;
-
-  this.request = function() {
-    if (!timer) {
-      timer = setInterval(function() {
-        window.location.href = '/';
-        setTimeout(window.stop, 0);
-      }, 15000);
-    }
-  }
-
-  this.release = function() {
-    if (timer) {
-      clearInterval(timer);
-      timer = null;
-    }
-  }
-}
-
-
-function getWakeLock() {
-  var userAgent = navigator.userAgent || navigator.vendor || window.opera;
-  if (userAgent.match(/iPhone/i) || userAgent.match(/iPod/i)) {
-    return iOSWakeLock;
-  } else {
-    return AndroidWakeLock;
-  }
-}
-
-module.exports = getWakeLock();
-
-},{"./util.js":203}]},{},[171])(171)
-});
-//# sourceMappingURL=aframe-master.js.map
diff --git a/templates/index.hbs b/src/lobby.html
similarity index 54%
rename from templates/index.hbs
rename to src/lobby.html
index a0e99d981..3fd52acf4 100644
--- a/templates/index.hbs
+++ b/src/lobby.html
@@ -7,14 +7,8 @@
     <meta name="viewport" content="width=device-width, initial-scale=1">
 
     <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
-    <link rel="stylesheet" href="{{asset "lobby-vendor.css"}}">
-    <link rel="stylesheet" href="{{asset "lobby.css"}}">
-    <script src="{{asset "manifest.js"}}"></script>
-    <script src="{{asset "lobby-vendor.js"}}"></script>
   </head>
   <body>
       <div id="root"></div>
-      <script>window.CONFIG = {{toJSON config.global}};</script>
-      <script src="{{asset "lobby.js"}}"></script>
   </body>
 </html>
diff --git a/src/lobby.js b/src/lobby.js
index f6e77536f..c3c9a6bae 100644
--- a/src/lobby.js
+++ b/src/lobby.js
@@ -9,6 +9,8 @@ import "webrtc-adapter";
 
 import registerTelemetry from "./telemetry";
 
+const publicRooms = [1, 2, 3, 4, 5];
+
 registerTelemetry();
 
 class Lobby extends React.Component {
@@ -22,7 +24,7 @@ class Lobby extends React.Component {
   }
 
   componentDidMount() {
-    this.ws = new WebSocket(window.CONFIG.janus_server_url, "janus-protocol");
+    this.ws = new WebSocket(process.env.JANUS_SERVER, "janus-protocol");
     this.session = new JanusSession(this.ws.send.bind(this.ws));
     this.ws.addEventListener("open", this.onWebsocketOpen);
     this.ws.addEventListener("message", this.onWebsocketMessage);
@@ -53,7 +55,7 @@ class Lobby extends React.Component {
   fetchRooms() {
     return this.handle.sendMessage({ kind: "listusers" }).then(signal => {
       const usersByRoom = signal.plugindata.data.response.users;
-      return window.CONFIG.public_rooms.map(id => ({
+      return publicRooms.map(id => ({
         id,
         limit: 12,
         users: usersByRoom[id] || []
@@ -91,16 +93,12 @@ const RoomListItem = ({ room }) => {
 };
 
 const RoomList = ({ rooms }) => {
-  const publicRooms = window.CONFIG.public_rooms.length + 1;
   const roomId =
-    publicRooms +
-    Math.floor(Math.random() * (Number.MAX_SAFE_INTEGER - publicRooms));
+    publicRooms.length + 1 + Math.floor(Math.random() * (Number.MAX_SAFE_INTEGER - publicRooms.length + 1));
 
   return (
     <div className="mdl-card mdl-shadow--2dp panel">
-      <ul className="mdl-list scroll">
-        {rooms.map(room => <RoomListItem key={room.id} room={room} />)}
-      </ul>
+      <ul className="mdl-list scroll">{rooms.map(room => <RoomListItem key={room.id} room={room} />)}</ul>
       <ul className="mdl-list">
         <li className="mdl-list__item room-item">
           <a href={`room.html?room=${roomId}`}>
diff --git a/src/onboarding.css b/src/onboarding.css
new file mode 100644
index 000000000..c3332df40
--- /dev/null
+++ b/src/onboarding.css
@@ -0,0 +1,15 @@
+* {
+  box-sizing: border-box;
+}
+
+body {
+  margin: 0;
+  padding: 0;
+}
+
+:local(.onboarding) {
+  display: flex;
+  flex: 1;
+  margin: 20px;
+  flex-direction: column;
+}
diff --git a/src/onboarding.html b/src/onboarding.html
new file mode 100644
index 000000000..cda90ad3c
--- /dev/null
+++ b/src/onboarding.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Mozilla Mixed Reality Social Client Lobby</title>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+  </head>
+  <body>
+      <div id="root"></div>
+  </body>
+</html>
diff --git a/src/onboarding.js b/src/onboarding.js
new file mode 100644
index 000000000..a3d25c27b
--- /dev/null
+++ b/src/onboarding.js
@@ -0,0 +1,51 @@
+import ReactDOM from "react-dom";
+import React from "react";
+import { HashRouter as Router, Route, Link } from "react-router-dom";
+import styles from "./onboarding.css";
+
+const Onboarding = () => (
+  <Router basename="">
+    <div className={styles.onboarding}>
+      <Link to="/">Start Over</Link>
+
+      <hr />
+
+      <Route exact path="/" component={Landing} />
+      <Route path="/step1" component={Step1} />
+      <Route path="/step2" component={Step2} />
+      <Route path="/step3" component={Step3} />
+    </div>
+  </Router>
+);
+
+const Landing = () => (
+  <div>
+    <h2>Landing</h2>
+    <Link to="/step1">Get Started</Link>
+  </div>
+);
+
+const Step1 = () => (
+  <div>
+    <h2>Step 1</h2>
+    <Link to="/step2">Next</Link>
+  </div>
+);
+
+const Step2 = () => (
+  <div>
+    <h2>Step 2</h2>
+    <Link to="/step1">Back</Link>
+    <Link to="/step3">Next</Link>
+  </div>
+);
+
+const Step3 = () => (
+  <div>
+    <h2>Step 3</h2>
+    <Link to="/step2">Back</Link>
+    <a href="/room.html?room=1">Create Room</a>
+  </div>
+);
+
+ReactDOM.render(<Onboarding />, document.getElementById("root"));
diff --git a/src/room.css b/src/room.css
new file mode 100644
index 000000000..6f2d31b19
--- /dev/null
+++ b/src/room.css
@@ -0,0 +1,13 @@
+.a-enter-vr {
+  top: 90px;
+  bottom: auto;
+}
+
+#loader {
+  position: fixed;
+  width: 100vw;
+  height: 100vh;
+  z-index: 10001;
+  background: #eaeaea no-repeat url("./assets/loading.gif") center center;
+  opacity: 0.9;
+}
diff --git a/templates/room.hbs b/src/room.html
similarity index 81%
rename from templates/room.hbs
rename to src/room.html
index f71454174..3893f8676 100644
--- a/templates/room.hbs
+++ b/src/room.html
@@ -1,35 +1,16 @@
+<!DOCTYPE html>
 <html>
 
 <head>
     <meta charset="utf-8">
     <title>Mozilla Mixed Reality Social Client</title>
 
-    {{#if config.originTrialToken }}
-    <meta http-equiv="origin-trial" data-feature="WebVR (For Chrome M62+)" data-expires="{{ config.originTrialExpires }}" content="{{{ config.originTrialToken }}}">
-    {{/if}}
-
-    <link rel="stylesheet" href="{{asset "room.css"}}">
-
-    <script>window.CONFIG = {{toJSON config.global}};</script>
-    <script src="{{asset "assets/aframe.js" }}"></script>
-    <script src="{{asset "manifest.js" }}"></script>
-    <script src="{{asset "room-vendor.js" }}"></script>
-    <script src="{{asset "room.js" }}"></script>
-    <meta charset="UTF-8">
-    <style>
-        .a-enter-vr {
-            top: 90px;
-            bottom: auto;
-        }
-        #loader {
-            position: fixed;
-            width: 100vw;
-            height: 100vh;
-            z-index: 10001;
-            background: #eaeaea no-repeat url({{asset "assets/loading.gif" }}) center center;
-            opacity: 0.9;
-        }
-    </style>
+    <meta http-equiv="origin-trial" data-feature="WebVR (For Chrome M62+)" data-expires="<%= ORIGIN_TRIAL_EXPIRES %>" content="<%= ORIGIN_TRIAL_TOKEN %>">
+    <% if(NODE_ENV === "production") { %>
+        <script src="https://cdn.rawgit.com/brianpeiris/aframe/r90-tracked-controls-fix/dist/aframe-master.min.js"></script>
+    <% } else { %>
+        <script src="https://rawgit.com/brianpeiris/aframe/r90-tracked-controls-fix/dist/aframe-master.js"></script>
+    <% } %>
 </head>
 
 <body>
@@ -45,15 +26,15 @@
         light="defaultLightsEnabled: false">
 
         <a-assets>
-            <a-asset-item id="bot-skinned-mesh" response-type="arraybuffer" src="{{asset "assets/avatars/Bot_SkinnedWithAnim.glb" }}"></a-asset-item>
-            <a-asset-item id="watch-model" response-type="arraybuffer" src="{{asset "assets/hud/watch.glb"}}"></a-asset-item>
+            <a-asset-item id="bot-skinned-mesh" response-type="arraybuffer" src="./assets/avatars/Bot_SkinnedWithAnim.glb"></a-asset-item>
+            <a-asset-item id="watch-model" response-type="arraybuffer" src="./assets/hud/watch.glb"></a-asset-item>
 
-            <a-asset-item id="meeting-space1-mesh" response-type="arraybuffer" src="{{asset "assets/environments/MeetingSpace1_mesh.glb"}}"></a-asset-item>
-            <a-asset-item id="outdoor-facade-mesh" response-type="arraybuffer" src="{{asset "assets/environments/OutdoorFacade_mesh.glb"}}"></a-asset-item>
-            <a-asset-item id="floor-nav-mesh" response-type="arraybuffer" src="{{asset "assets/environments/FloorNav_mesh.glb"}}"></a-asset-item>
-            <a-asset-item id="cliff-vista-mesh" response-type="arraybuffer" src="{{asset "assets/environments/CliffVista_mesh.glb"}}"></a-asset-item>
+            <a-asset-item id="meeting-space1-mesh" response-type="arraybuffer" src="./assets/environments/MeetingSpace1_mesh.glb"></a-asset-item>
+            <a-asset-item id="outdoor-facade-mesh" response-type="arraybuffer" src="./assets/environments/OutdoorFacade_mesh.glb"></a-asset-item>
+            <a-asset-item id="floor-nav-mesh" response-type="arraybuffer" src="./assets/environments/FloorNav_mesh.glb"></a-asset-item>
+            <a-asset-item id="cliff-vista-mesh" response-type="arraybuffer" src="./assets/environments/CliffVista_mesh.glb"></a-asset-item>
 
-            <img id="water-normal-map" src="{{asset "assets/waternormals.jpg"}}"></a-asset-item>
+            <img id="water-normal-map" src="./assets/waternormals.jpg"></a-asset-item>
 
             <!-- Templates -->
 
@@ -215,10 +196,6 @@
             xr="ar: false"
         ></a-entity>
     </a-scene>
-
-    <script>
-        document.querySelector('a-scene').addEventListener('loaded', App.onSceneLoad)
-    </script>
 </body>
 
 </html>
diff --git a/src/room.js b/src/room.js
index 0983b48ce..c3ed3d28e 100644
--- a/src/room.js
+++ b/src/room.js
@@ -1,3 +1,4 @@
+import "./room.css";
 import queryString from "query-string";
 
 import { patchWebGLRenderingContext } from "./utils/webgl";
@@ -83,67 +84,68 @@ async function shareMedia(audio, video) {
   }
 }
 
-window.App = {
-  async onSceneLoad() {
-    const qs = queryString.parse(location.search);
-    const scene = document.querySelector("a-scene");
+async function onSceneLoad() {
+  const qs = queryString.parse(location.search);
+  const scene = document.querySelector("a-scene");
 
-    scene.setAttribute("networked-scene", {
-      room: qs.room && !isNaN(parseInt(qs.room)) ? parseInt(qs.room) : window.CONFIG.default_room,
-      serverURL: window.CONFIG.janus_server_url
-    });
+  scene.setAttribute("networked-scene", {
+    room: qs.room && !isNaN(parseInt(qs.room)) ? parseInt(qs.room) : 1,
+    serverURL: process.env.JANUS_SERVER
+  });
 
-    if (!qs.stats || !/off|false|0/.test(qs.stats)) {
-      scene.setAttribute("stats", true);
-    }
+  if (!qs.stats || !/off|false|0/.test(qs.stats)) {
+    scene.setAttribute("stats", true);
+  }
 
+  if (AFRAME.utils.device.isMobile() || qs.gamepad) {
     const playerRig = document.querySelector("#player-rig");
+    playerRig.setAttribute("virtual-gamepad-controls", {});
+  }
 
-    if (AFRAME.utils.device.isMobile() || qs.gamepad) {
-      playerRig.setAttribute("virtual-gamepad-controls", {});
-    }
-
-    let username;
-    const jwt = getCookie("jwt");
-    if (jwt) {
-      //grab name from jwt
-      const data = parseJwt(jwt);
-      username = data.typ.name;
-    }
-
-    if (qs.name) {
-      username = qs.name; //always override with name from querystring if available
-    } else {
-      username = promptForName(username); // promptForName is blocking
-    }
-
-    const myNametag = playerRig.querySelector(".nametag");
-    myNametag.setAttribute("text", "value", username);
-
-    const avatarScale = parseInt(qs.avatarScale, 10);
-
-    if (avatarScale) {
-      playerRig.setAttribute("scale", { x: avatarScale, y: avatarScale, z: avatarScale });
-    }
-
-    let sharingScreen = false;
-    scene.addEventListener("action_share_screen", () => {
-      sharingScreen = !sharingScreen;
-      shareMedia(true, sharingScreen);
-    });
+  let username;
+  const jwt = getCookie("jwt");
+  if (jwt) {
+    //grab name from jwt
+    const data = parseJwt(jwt);
+    username = data.typ.name;
+  }
 
-    if (qs.offline) {
-      App.onConnect();
-    } else {
-      document.body.addEventListener("connected", App.onConnect);
+  if (qs.name) {
+    username = qs.name; //always override with name from querystring if available
+  } else {
+    username = promptForName(username); // promptForName is blocking
+  }
 
-      scene.components["networked-scene"].connect();
+  const myNametag = document.querySelector("#player-rig .nametag");
+  myNametag.setAttribute("text", "value", username);
 
-      await shareMedia(true, sharingScreen);
-    }
-  },
+  const avatarScale = parseInt(qs.avatarScale, 10);
 
-  onConnect() {
-    document.getElementById("loader").style.display = "none";
+  if (avatarScale) {
+    playerRig.setAttribute("scale", { x: avatarScale, y: avatarScale, z: avatarScale });
   }
-};
+
+  let sharingScreen = false;
+  scene.addEventListener("action_share_screen", () => {
+    sharingScreen = !sharingScreen;
+    shareMedia(true, sharingScreen);
+  });
+
+  if (qs.offline) {
+    onConnect();
+  } else {
+    document.body.addEventListener("connected", onConnect);
+
+    scene.components["networked-scene"].connect();
+
+    await shareMedia(true, sharingScreen);
+  }
+}
+
+function onConnect() {
+  document.getElementById("loader").style.display = "none";
+}
+
+document.addEventListener("DOMContentLoaded", () => {
+  document.querySelector("a-scene").addEventListener("loaded", onSceneLoad);
+});
diff --git a/templates/HandlebarsTemplatePlugin.js b/templates/HandlebarsTemplatePlugin.js
deleted file mode 100644
index 5f63f9903..000000000
--- a/templates/HandlebarsTemplatePlugin.js
+++ /dev/null
@@ -1,83 +0,0 @@
-const Handlebars = require("handlebars");
-const fs = require("fs-extra");
-const path = require("path");
-const chokidar = require("chokidar");
-
-function filterUniqueTemplatePaths(pages) {
-  return pages
-    .map(page => page.templatePath)
-    .filter((fileName, index, arr) => arr.indexOf(fileName) === index);
-}
-
-class HandlebarsTemplatePlugin {
-  constructor(options) {
-    this.pages = options.pages;
-
-    if (options.helpers) {
-      // Accepts an object where the key is the helper name and the value is the helper function
-      Handlebars.registerHelper(options.helpers);
-    }
-  }
-
-  apply(compiler) {
-    // Trigger a webpack compilation whenerver the templates change
-    compiler.plugin("watch-run", (compilation, callback) => {
-      const uniqueFiles = filterUniqueTemplatePaths(this.pages);
-
-      chokidar.watch(uniqueFiles).on("change", () => {
-        compiler.run(err => {
-          if (err) {
-            throw err;
-          }
-        });
-      });
-
-      callback();
-    });
-
-    // Compile templates on each webpack compilation
-    compiler.plugin("emit", (compilation, callback) => {
-      this.compileTemplates(compiler, compilation)
-        .then(callback)
-        .catch(err => {
-          compilation.errors.push(err);
-        });
-    });
-  }
-
-  // Compile all handlebars templates in the template directory and place them in the output directory
-  async compileTemplates(compiler, compilation) {
-    const outputPath = compiler.options.output.path;
-    const uniqueTemplatePaths = filterUniqueTemplatePaths(this.pages);
-    const templatePromises = {};
-
-    // Compile all unique handlebars templates
-    for (const templatePath of uniqueTemplatePaths) {
-      templatePromises[templatePath] = async () => {
-        const templateStr = await fs.readFile(templatePath);
-        return Handlebars.compile(templateStr.toString());
-      };
-    }
-
-    // Use the compiled templates to generate the pages
-    const outputPromises = this.pages.map(async page => {
-      const template = await templatePromises[page.templatePath]();
-      const compiledStr = template({ ...page.data, compiler, compilation });
-      const outputFilePath = path.join(outputPath, page.fileName);
-
-      compilation.assets[page.fileName] = {
-        source() {
-          return compiledStr;
-        },
-        size() {
-          return compiledStr.length;
-        }
-      };
-    });
-
-    // Compile templates in parallel
-    await Promise.all(outputPromises);
-  }
-}
-
-module.exports = HandlebarsTemplatePlugin;
diff --git a/templates/helpers.js b/templates/helpers.js
deleted file mode 100644
index 44b58374b..000000000
--- a/templates/helpers.js
+++ /dev/null
@@ -1,53 +0,0 @@
-const Handlebars = require("handlebars");
-const path = require("path");
-const fs = require("fs");
-const crc = require("crc");
-
-module.exports = {
-  /**
-   * Register a handlebars helper that prepends the base asset path.
-   * Useful for things like placing assets on a CDN and cache busting.
-   * Example:
-   * input: <img src="{{asset "asset.png"}}"/>
-   * output: <img src="https://cdn.mysite.com/asset.png?sha="/>
-   */
-  asset: (assetPath, options) => {
-    // In the development environment just use the original asset path.
-    if (process.env.NODE_ENV !== "production") {
-      return new Handlebars.SafeString(assetPath);
-    }
-
-    // const compilation = options.data.root.compilation;
-
-    // let asset;
-    // if (compilation.assets[assetPath]) {
-    //   asset = compilation.assets[assetPath].source();
-    // } else {
-    //   const outputPath = options.data.root.compiler.options.output.path;
-    //   const localPath = path.join(outputPath, assetPath);
-
-    //   try {
-    //     asset = fs.readFileSync(localPath);
-    //   } catch (err) {
-    //     compilation.errors.push(
-    //       err.message +
-    //         " Availible assets: " +
-    //         Object.keys(compilation.assets).jojn(", ")
-    //     );
-    //   }
-    // }
-
-    // const hash = crc.crc32(asset).toString(16);
-    // const cacheBustQueryString = "?crc=" + hash;
-    const cacheBustQueryString = "?d=" + Date.now();
-
-    const baseAssetsPath = options.data.root.baseAssetsPath || "";
-
-    const url = baseAssetsPath + assetPath + cacheBustQueryString;
-
-    return new Handlebars.SafeString(url);
-  },
-  toJSON: obj => {
-    return new Handlebars.SafeString(JSON.stringify(obj));
-  }
-};
diff --git a/webpack.common.js b/webpack.common.js
deleted file mode 100644
index 9bf6dfb0c..000000000
--- a/webpack.common.js
+++ /dev/null
@@ -1,134 +0,0 @@
-const path = require("path");
-const glob = require("glob");
-const webpack = require("webpack");
-const ExtractTextPlugin = require("extract-text-webpack-plugin");
-const FileManagerPlugin = require("filemanager-webpack-plugin");
-const HandlebarsTemplatePlugin = require("./templates/HandlebarsTemplatePlugin");
-const helpers = require("./templates/helpers");
-const config = require("./config");
-
-const templatePaths = glob.sync("./templates/*.hbs");
-const pages = [];
-
-for (const templatePath of templatePaths) {
-  const fileName = path.basename(templatePath, ".hbs");
-
-  // Generate html pages for each .hbs template in /templates
-  pages.push({
-    fileName: fileName + ".html",
-    templatePath,
-    data: {
-      baseAssetsPath: process.env.BASE_ASSETS_PATH,
-      config
-    }
-  });
-
-  // Generate html pages for smoke tests
-  if (process.env.GENERATE_SMOKE_TESTS) {
-    pages.push({
-      fileName: "smoke-" + fileName + ".html",
-      templatePath,
-      data: {
-        baseAssetsPath:
-          process.env.BASE_ASSETS_PATH &&
-          process.env.BASE_ASSETS_PATH.replace("https://", "https://smoke-"),
-        config: {
-          ...config,
-          global: {
-            ...config.global,
-            janus_server_url: config.global.janus_server_url.replace(
-              "wss://",
-              "wss://smoke-"
-            )
-          }
-        }
-      }
-    });
-  }
-}
-
-module.exports = {
-  entry: {
-    room: path.join(__dirname, "src", "room"),
-    lobby: path.join(__dirname, "src", "lobby")
-  },
-  output: {
-    filename: "[name].js",
-    path: path.resolve(__dirname, "public")
-  },
-  module: {
-    rules: [
-      {
-        test: /\.js$/,
-        include: [path.resolve(__dirname, "src")],
-        exclude: [path.resolve(__dirname, "node_modules")],
-        loader: "babel-loader"
-      },
-      {
-        test: /\.css$/,
-        use: ExtractTextPlugin.extract({
-          fallback: "style-loader",
-          use: "css-loader"
-        })
-      },
-      {
-        test: /\.(png|jpg|gif)$/,
-        use: {
-          loader: "file-loader",
-          options: {
-            emitFile: false,
-            outputPath(url) {
-              // Rewrite the url to correctly reference the copied assets directory.
-              return url.replace("src/assets/", "assets/");
-            },
-            name(file) {
-              if (process.env.NODE_ENV === "production") {
-                return "[path][name].[ext]?md5=[hash]";
-              }
-
-              return "[path][name].[ext]";
-            }
-          }
-        }
-      }
-    ]
-  },
-  plugins: [
-    new FileManagerPlugin({
-      onStart: {
-        delete: [path.join(__dirname, "public")],
-        copy: [
-          {
-            source: path.join(__dirname, "src", "assets"),
-            destination: path.join(__dirname, "public", "assets")
-          }
-        ]
-      }
-    }),
-    new webpack.optimize.CommonsChunkPlugin({
-      name: "lobby-vendor",
-      chunks: ["lobby"],
-      minChunks: function(module) {
-        return module.context && module.context.indexOf("node_modules") !== -1;
-      }
-    }),
-    new webpack.optimize.CommonsChunkPlugin({
-      name: "room-vendor",
-      chunks: ["room"],
-      minChunks: function(module) {
-        return module.context && module.context.indexOf("node_modules") !== -1;
-      }
-    }),
-    new webpack.optimize.CommonsChunkPlugin({
-      name: "manifest",
-      minChunks: Infinity
-    }),
-    new ExtractTextPlugin("[name].css", {
-      disable: process.env.NODE_ENV !== "production"
-    }),
-    new HandlebarsTemplatePlugin({
-      pages,
-      helpers
-    })
-  ]
-};
diff --git a/webpack.config.js b/webpack.config.js
new file mode 100644
index 000000000..c543bb4b1
--- /dev/null
+++ b/webpack.config.js
@@ -0,0 +1,196 @@
+// Variables in .env will be added to process.env
+require("dotenv").config();
+
+const fs = require("fs");
+const path = require("path");
+const selfsigned = require("selfsigned");
+const webpack = require("webpack");
+const HTMLWebpackPlugin = require("html-webpack-plugin");
+const ExtractTextPlugin = require("extract-text-webpack-plugin");
+const _ = require("lodash");
+
+function createHTTPSConfig() {
+  if (process.env.NODE_ENV === "production") {
+    return false;
+  }
+
+  let https;
+
+  // Generate certs for the local webpack-dev-server.
+  if (fs.existsSync(path.join(__dirname, "certs"))) {
+    const key = fs.readFileSync(path.join(__dirname, "certs", "key.pem"));
+    const cert = fs.readFileSync(path.join(__dirname, "certs", "cert.pem"));
+
+    return { key, cert };
+  } else {
+    const pems = selfsigned.generate(
+      [
+        {
+          name: "commonName",
+          value: "localhost"
+        }
+      ],
+      {
+        days: 365,
+        algorithm: "sha256",
+        extensions: [
+          {
+            name: "subjectAltName",
+            altNames: [
+              {
+                type: 2,
+                value: "localhost"
+              }
+            ]
+          }
+        ]
+      }
+    );
+
+    fs.mkdirSync(path.join(__dirname, "certs"));
+    fs.writeFileSync(path.join(__dirname, "certs", "cert.pem"), pems.cert);
+    fs.writeFileSync(path.join(__dirname, "certs", "key.pem"), pems.private);
+
+    return {
+      key: pems.public,
+      cert: pems.cert
+    };
+  }
+}
+
+class LodashTemplatePlugin {
+  constructor(options) {
+    this.options = options;
+  }
+
+  apply(compiler) {
+    compiler.plugin("compilation", compilation => {
+      compilation.plugin("html-webpack-plugin-before-html-processing", async data => {
+        data.html = _.template(data.html, this.options)();
+        return data;
+      });
+    });
+  }
+}
+
+module.exports = {
+  entry: {
+    lobby: path.join(__dirname, "src", "lobby.js"),
+    room: path.join(__dirname, "src", "room.js"),
+    onboarding: path.join(__dirname, "src", "onboarding.js")
+  },
+  output: {
+    path: path.join(__dirname, "public"),
+    filename: "[name]-[chunkhash].js"
+  },
+  mode: "development",
+  devtool: process.env.NODE_ENV === "production" ? "source-map" : "inline-source-map",
+  devServer: {
+    open: true,
+    https: createHTTPSConfig(),
+    port: 8080,
+    before: function(app) {
+      // networked-aframe makes HEAD requests to the server for time syncing. Respond with an empty body.
+      app.head("*", function(req, res, next) {
+        if (req.method === "HEAD") {
+          res.send("");
+        } else {
+          next();
+        }
+      });
+    }
+  },
+  performance: {
+    // Ignore media and sourcemaps when warning about file size.
+    assetFilter(assetFilename) {
+      return !/\.(map|png|jpg|gif|glb)$/.test(assetFilename);
+    }
+  },
+  module: {
+    rules: [
+      {
+        test: /\.html$/,
+        loader: "html-loader",
+        options: {
+          // <a-asset-item>'s src property is overwritten with the correct transformed asset url.
+          attrs: ["img:src", "a-asset-item:src"],
+          // You can get transformed asset urls in an html template using ${require("pathToFile.ext")}
+          interpolate: "require"
+        }
+      },
+      {
+        test: /\.js$/,
+        include: [path.resolve(__dirname, "src")],
+        // Exclude JS assets in node_modules because they are already transformed and often big.
+        exclude: [path.resolve(__dirname, "node_modules")],
+        loader: "babel-loader"
+      },
+      {
+        test: /\.css$/,
+        use: ExtractTextPlugin.extract({
+          fallback: "style-loader",
+          use: {
+            loader: "css-loader",
+            options: {
+              minimize: process.env.NODE_ENV === "production"
+            }
+          }
+        })
+      },
+      {
+        test: /\.(png|jpg|gif|glb)$/,
+        use: {
+          loader: "file-loader",
+          options: {
+            // move required assets to /public and add a hash for cache busting
+            name: "[path][name]-[hash].[ext]",
+            // Make asset paths relative to /src
+            context: path.join(__dirname, "src")
+          }
+        }
+      }
+    ]
+  },
+  plugins: [
+    // Each output page needs a HTMLWebpackPlugin entry
+    new HTMLWebpackPlugin({
+      filename: "index.html",
+      template: path.join(__dirname, "src", "lobby.html"),
+      // Chunks correspond with the entries you wish to include in your html template
+      chunks: ["lobby"]
+    }),
+    new HTMLWebpackPlugin({
+      filename: "room.html",
+      template: path.join(__dirname, "src", "room.html"),
+      chunks: ["room"],
+      inject: "head"
+    }),
+    new HTMLWebpackPlugin({
+      filename: "onboarding.html",
+      template: path.join(__dirname, "src", "onboarding.html"),
+      chunks: ["onboarding"]
+    }),
+    // Extract required css and add a content hash.
+    new ExtractTextPlugin("[name]-[contenthash].css", {
+      disable: process.env.NODE_ENV !== "production"
+    }),
+    // Transform the output of the html-loader using _.template
+    // before passing the result to html-webpack-plugin
+    new LodashTemplatePlugin({
+      // expose these variables to the lodash template
+      // ex: <%= ORIGIN_TRIAL_TOKEN %>
+      imports: {
+        NODE_ENV: process.env.NODE_ENV,
+        ORIGIN_TRIAL_EXPIRES: process.env.ORIGIN_TRIAL_EXPIRES,
+        ORIGIN_TRIAL_TOKEN: process.env.ORIGIN_TRIAL_TOKEN
+      }
+    }),
+    // Define process.env variables in the browser context.
+    new webpack.DefinePlugin({
+      "process.env": JSON.stringify({
+        NODE_ENV: process.env.NODE_ENV,
+        JANUS_SERVER: process.env.JANUS_SERVER
+      })
+    })
+  ]
+};
diff --git a/webpack.dev.js b/webpack.dev.js
deleted file mode 100644
index c875153fd..000000000
--- a/webpack.dev.js
+++ /dev/null
@@ -1,25 +0,0 @@
-const path = require("path");
-const merge = require("webpack-merge");
-const common = require("./webpack.common");
-const WriteFilePlugin = require("write-file-webpack-plugin");
-const fs = require("fs");
-
-module.exports = merge(common, {
-  devtool: "inline-source-map",
-  devServer: {
-    contentBase: path.resolve(__dirname, "public"),
-    disableHostCheck: true,
-    before: function (app) {
-      // networked-aframe makes HEAD requests to the server for time syncing. Respond with an empty body.
-      app.head('\*', function (req, res, next) {
-        if (req.method === 'HEAD') { 
-          res.send('');
-        }
-        else {
-          next();
-        }
-      });
-    }
-  },
-  plugins: [new WriteFilePlugin()]
-});
diff --git a/webpack.prod.js b/webpack.prod.js
deleted file mode 100644
index d4cc04fb8..000000000
--- a/webpack.prod.js
+++ /dev/null
@@ -1,20 +0,0 @@
-const webpack = require("webpack");
-const merge = require("webpack-merge");
-const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
-const OptimizeCssAssetsPlugin = require("optimize-css-assets-webpack-plugin");
-const ExtractTextPlugin = require("extract-text-webpack-plugin");
-const common = require("./webpack.common");
-
-module.exports = merge(common, {
-  devtool: "source-map",
-  plugins: [
-    new OptimizeCssAssetsPlugin(),
-    new UglifyJsPlugin({
-      parallel: true,
-      sourceMap: true
-    }),
-    new webpack.DefinePlugin({
-      "process.env.NODE_ENV": "'production'"
-    })
-  ]
-});
diff --git a/yarn.lock b/yarn.lock
index e5dacaf3b..4166d1522 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -20,11 +20,11 @@ accepts@~1.3.4:
     mime-types "~2.1.16"
     negotiator "0.6.1"
 
-acorn-dynamic-import@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz#c752bd210bef679501b6c6cb7fc84f8f47158cc4"
+acorn-dynamic-import@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
   dependencies:
-    acorn "^4.0.3"
+    acorn "^5.0.0"
 
 acorn-jsx@^3.0.0:
   version "3.0.1"
@@ -36,10 +36,6 @@ acorn@^3.0.4:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
-acorn@^4.0.3:
-  version "4.0.13"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.13.tgz#105495ae5361d697bd195c825192e1ad7f253787"
-
 acorn@^5.0.0, acorn@^5.4.0:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.4.1.tgz#fdc58d9d17f4a4e98d102ded826a9b9759125102"
@@ -84,11 +80,7 @@ after@0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
 
-ajv-keywords@^2.1.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
-
-ajv-keywords@^3.1.0:
+ajv-keywords@^3.0.0, ajv-keywords@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.1.0.tgz#ac2b27939c543e95d2c06e7f7f5c27be4aa543be"
 
@@ -99,7 +91,7 @@ ajv@^4.9.1:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
-ajv@^5.0.0, ajv@^5.2.3, ajv@^5.3.0:
+ajv@^5.3.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   dependencies:
@@ -108,6 +100,14 @@ ajv@^5.0.0, ajv@^5.2.3, ajv@^5.3.0:
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
 
+ajv@^6.0.1:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.2.0.tgz#afac295bbaa0152449e522742e4547c1ae9328d2"
+  dependencies:
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+
 ajv@^6.1.0:
   version "6.1.1"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.1.1.tgz#978d597fbc2b7d0e5a5c3ddeb149a682f2abfa0e"
@@ -116,14 +116,6 @@ ajv@^6.1.0:
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
 
-align-text@^0.1.1, align-text@^0.1.3:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
-  dependencies:
-    kind-of "^3.0.2"
-    longest "^1.0.1"
-    repeat-string "^1.5.2"
-
 almost-equal@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/almost-equal/-/almost-equal-1.1.0.tgz#f851c631138757994276aa2efbe8dfa3066cccdd"
@@ -132,9 +124,9 @@ alphanum-sort@^1.0.1, alphanum-sort@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/alphanum-sort/-/alphanum-sort-1.0.2.tgz#97a1119649b211ad33691d9f9f486a8ec9fbe0a3"
 
-amdefine@>=0.0.4:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
+ansi-escapes@^1.0.0, ansi-escapes@^1.1.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
 
 ansi-escapes@^3.0.0:
   version "3.0.0"
@@ -162,6 +154,10 @@ ansi-styles@^3.2.0:
   dependencies:
     color-convert "^1.9.0"
 
+ansi-styles@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
+
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
@@ -180,30 +176,6 @@ aproba@^1.0.3, aproba@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
 
-archiver-utils@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/archiver-utils/-/archiver-utils-1.3.0.tgz#e50b4c09c70bf3d680e32ff1b7994e9f9d895174"
-  dependencies:
-    glob "^7.0.0"
-    graceful-fs "^4.1.0"
-    lazystream "^1.0.0"
-    lodash "^4.8.0"
-    normalize-path "^2.0.0"
-    readable-stream "^2.0.0"
-
-archiver@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/archiver/-/archiver-2.1.1.tgz#ff662b4a78201494a3ee544d3a33fe7496509ebc"
-  dependencies:
-    archiver-utils "^1.3.0"
-    async "^2.0.0"
-    buffer-crc32 "^0.2.1"
-    glob "^7.0.0"
-    lodash "^4.8.0"
-    readable-stream "^2.0.0"
-    tar-stream "^1.5.0"
-    zip-stream "^1.2.0"
-
 are-we-there-yet@~1.1.2:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz#bb5dca382bb94f05e15194373d16fd3ba1ca110d"
@@ -217,6 +189,10 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argv@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/argv/-/argv-0.0.2.tgz#ecbd16f8949b157183711b1bda334f37840185ab"
+
 arr-diff@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
@@ -235,9 +211,9 @@ arr-union@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
 
-array-filter@~0.0.0:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/array-filter/-/array-filter-0.0.1.tgz#7da8cf2e26628ed732803581fd21f67cacd2eeec"
+array-differ@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/array-differ/-/array-differ-1.0.0.tgz#eff52e3758249d33be402b8bb8e564bb2b5d4031"
 
 array-find-index@^1.0.1:
   version "1.0.2"
@@ -258,14 +234,6 @@ array-includes@^3.0.3:
     define-properties "^1.1.2"
     es-abstract "^1.7.0"
 
-array-map@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/array-map/-/array-map-0.0.0.tgz#88a2bab73d1cf7bcd5c1b118a003f66f665fa662"
-
-array-reduce@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/array-reduce/-/array-reduce-0.0.0.tgz#173899d3ffd1c7d9383e4479525dbe278cab5f2b"
-
 array-union@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-union/-/array-union-1.0.2.tgz#9a34410e4f4e3da23dea375be5be70f24778ec39"
@@ -326,6 +294,18 @@ assign-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
 
+ast-types@0.10.1:
+  version "0.10.1"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.10.1.tgz#f52fca9715579a14f841d67d7f8d25432ab6a3dd"
+
+ast-types@0.10.2:
+  version "0.10.2"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.10.2.tgz#aef76a04fde54634976fc94defaad1a67e2eadb0"
+
+ast-types@0.9.6:
+  version "0.9.6"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.9.6.tgz#102c9e9e9005d3e7e3829bf0c4fa24ee862ee9b9"
+
 async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
@@ -334,7 +314,7 @@ async@0.2.x:
   version "0.2.10"
   resolved "https://registry.yarnpkg.com/async/-/async-0.2.10.tgz#b6bbe0b0674b9d719708ca38de8c237cb526c3d1"
 
-async@^1.4.0, async@^1.5.2:
+async@^1.5.0, async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
@@ -416,6 +396,14 @@ babel-generator@^6.26.0:
     source-map "^0.5.7"
     trim-right "^1.0.1"
 
+babel-helper-bindify-decorators@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-bindify-decorators/-/babel-helper-bindify-decorators-6.24.1.tgz#14c19e5f142d7b47f19a52431e52b1ccbc40a330"
+  dependencies:
+    babel-runtime "^6.22.0"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
 babel-helper-builder-binary-assignment-operator-visitor@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-builder-binary-assignment-operator-visitor/-/babel-helper-builder-binary-assignment-operator-visitor-6.24.1.tgz#cce4517ada356f4220bcae8a02c2b346f9a56664"
@@ -458,6 +446,15 @@ babel-helper-explode-assignable-expression@^6.24.1:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
+babel-helper-explode-class@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-helper-explode-class/-/babel-helper-explode-class-6.24.1.tgz#7dc2a3910dee007056e1e31d640ced3d54eaa9eb"
+  dependencies:
+    babel-helper-bindify-decorators "^6.24.1"
+    babel-runtime "^6.22.0"
+    babel-traverse "^6.24.1"
+    babel-types "^6.24.1"
+
 babel-helper-function-name@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-helper-function-name/-/babel-helper-function-name-6.24.1.tgz#d3475b8c03ed98242a25b48351ab18399d3580a9"
@@ -525,9 +522,9 @@ babel-helpers@^6.24.1:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-loader@^7.1.2:
-  version "7.1.2"
-  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-7.1.2.tgz#f6cbe122710f1aa2af4d881c6d5b54358ca24126"
+babel-loader@^7.1.3:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-7.1.3.tgz#ff5b440da716e9153abb946251a9ab7670037b16"
   dependencies:
     find-cache-dir "^1.0.0"
     loader-utils "^1.0.2"
@@ -549,10 +546,34 @@ babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
 
+babel-plugin-syntax-async-generators@^6.5.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-generators/-/babel-plugin-syntax-async-generators-6.13.0.tgz#6bc963ebb16eccbae6b92b596eb7f35c342a8b9a"
+
+babel-plugin-syntax-class-constructor-call@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-class-constructor-call/-/babel-plugin-syntax-class-constructor-call-6.18.0.tgz#9cb9d39fe43c8600bec8146456ddcbd4e1a76416"
+
+babel-plugin-syntax-class-properties@^6.8.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-class-properties/-/babel-plugin-syntax-class-properties-6.13.0.tgz#d7eb23b79a317f8543962c505b827c7d6cac27de"
+
+babel-plugin-syntax-decorators@^6.13.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-decorators/-/babel-plugin-syntax-decorators-6.13.0.tgz#312563b4dbde3cc806cee3e416cceeaddd11ac0b"
+
+babel-plugin-syntax-dynamic-import@^6.18.0:
+  version "6.18.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-dynamic-import/-/babel-plugin-syntax-dynamic-import-6.18.0.tgz#8d6a26229c83745a9982a441051572caa179b1da"
+
 babel-plugin-syntax-exponentiation-operator@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz#9ee7e8337290da95288201a6a57f4170317830de"
 
+babel-plugin-syntax-export-extensions@^6.8.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-export-extensions/-/babel-plugin-syntax-export-extensions-6.13.0.tgz#70a1484f0f9089a4e84ad44bac353c95b9b12721"
+
 babel-plugin-syntax-flow@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-flow/-/babel-plugin-syntax-flow-6.18.0.tgz#4c3ab20a2af26aa20cd25995c398c4eb70310c8d"
@@ -561,11 +582,23 @@ babel-plugin-syntax-jsx@^6.3.13, babel-plugin-syntax-jsx@^6.8.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-jsx/-/babel-plugin-syntax-jsx-6.18.0.tgz#0af32a9a6e13ca7a3fd5069e62d7b0f58d0d8946"
 
+babel-plugin-syntax-object-rest-spread@^6.8.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
+
 babel-plugin-syntax-trailing-function-commas@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-trailing-function-commas/-/babel-plugin-syntax-trailing-function-commas-6.22.0.tgz#ba0360937f8d06e40180a43fe0d5616fff532cf3"
 
-babel-plugin-transform-async-to-generator@^6.22.0:
+babel-plugin-transform-async-generator-functions@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-async-generator-functions/-/babel-plugin-transform-async-generator-functions-6.24.1.tgz#f058900145fd3e9907a6ddf28da59f215258a5db"
+  dependencies:
+    babel-helper-remap-async-to-generator "^6.24.1"
+    babel-plugin-syntax-async-generators "^6.5.0"
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-async-to-generator@^6.22.0, babel-plugin-transform-async-to-generator@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-async-to-generator/-/babel-plugin-transform-async-to-generator-6.24.1.tgz#6536e378aff6cb1d5517ac0e40eb3e9fc8d08761"
   dependencies:
@@ -573,6 +606,33 @@ babel-plugin-transform-async-to-generator@^6.22.0:
     babel-plugin-syntax-async-functions "^6.8.0"
     babel-runtime "^6.22.0"
 
+babel-plugin-transform-class-constructor-call@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-class-constructor-call/-/babel-plugin-transform-class-constructor-call-6.24.1.tgz#80dc285505ac067dcb8d6c65e2f6f11ab7765ef9"
+  dependencies:
+    babel-plugin-syntax-class-constructor-call "^6.18.0"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-plugin-transform-class-properties@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-class-properties/-/babel-plugin-transform-class-properties-6.24.1.tgz#6a79763ea61d33d36f37b611aa9def81a81b46ac"
+  dependencies:
+    babel-helper-function-name "^6.24.1"
+    babel-plugin-syntax-class-properties "^6.8.0"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+
+babel-plugin-transform-decorators@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-decorators/-/babel-plugin-transform-decorators-6.24.1.tgz#788013d8f8c6b5222bdf7b344390dfd77569e24d"
+  dependencies:
+    babel-helper-explode-class "^6.24.1"
+    babel-plugin-syntax-decorators "^6.13.0"
+    babel-runtime "^6.22.0"
+    babel-template "^6.24.1"
+    babel-types "^6.24.1"
+
 babel-plugin-transform-es2015-arrow-functions@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz#452692cb711d5f79dc7f85e440ce41b9f244d221"
@@ -585,7 +645,7 @@ babel-plugin-transform-es2015-block-scoped-functions@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-block-scoping@^6.23.0:
+babel-plugin-transform-es2015-block-scoping@^6.23.0, babel-plugin-transform-es2015-block-scoping@^6.24.1:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-block-scoping/-/babel-plugin-transform-es2015-block-scoping-6.26.0.tgz#d70f5299c1308d05c12f463813b0a09e73b1895f"
   dependencies:
@@ -595,7 +655,7 @@ babel-plugin-transform-es2015-block-scoping@^6.23.0:
     babel-types "^6.26.0"
     lodash "^4.17.4"
 
-babel-plugin-transform-es2015-classes@^6.23.0:
+babel-plugin-transform-es2015-classes@^6.23.0, babel-plugin-transform-es2015-classes@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-classes/-/babel-plugin-transform-es2015-classes-6.24.1.tgz#5a4c58a50c9c9461e564b4b2a3bfabc97a2584db"
   dependencies:
@@ -609,33 +669,33 @@ babel-plugin-transform-es2015-classes@^6.23.0:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-computed-properties@^6.22.0:
+babel-plugin-transform-es2015-computed-properties@^6.22.0, babel-plugin-transform-es2015-computed-properties@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-computed-properties/-/babel-plugin-transform-es2015-computed-properties-6.24.1.tgz#6fe2a8d16895d5634f4cd999b6d3480a308159b3"
   dependencies:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-destructuring@^6.23.0:
+babel-plugin-transform-es2015-destructuring@^6.22.0, babel-plugin-transform-es2015-destructuring@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-destructuring/-/babel-plugin-transform-es2015-destructuring-6.23.0.tgz#997bb1f1ab967f682d2b0876fe358d60e765c56d"
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-duplicate-keys@^6.22.0:
+babel-plugin-transform-es2015-duplicate-keys@^6.22.0, babel-plugin-transform-es2015-duplicate-keys@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-duplicate-keys/-/babel-plugin-transform-es2015-duplicate-keys-6.24.1.tgz#73eb3d310ca969e3ef9ec91c53741a6f1576423e"
   dependencies:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-for-of@^6.23.0:
+babel-plugin-transform-es2015-for-of@^6.22.0, babel-plugin-transform-es2015-for-of@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-for-of/-/babel-plugin-transform-es2015-for-of-6.23.0.tgz#f47c95b2b613df1d3ecc2fdb7573623c75248691"
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-function-name@^6.22.0:
+babel-plugin-transform-es2015-function-name@^6.22.0, babel-plugin-transform-es2015-function-name@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-function-name/-/babel-plugin-transform-es2015-function-name-6.24.1.tgz#834c89853bc36b1af0f3a4c5dbaa94fd8eacaa8b"
   dependencies:
@@ -666,7 +726,7 @@ babel-plugin-transform-es2015-modules-commonjs@^6.23.0, babel-plugin-transform-e
     babel-template "^6.26.0"
     babel-types "^6.26.0"
 
-babel-plugin-transform-es2015-modules-systemjs@^6.23.0:
+babel-plugin-transform-es2015-modules-systemjs@^6.23.0, babel-plugin-transform-es2015-modules-systemjs@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz#ff89a142b9119a906195f5f106ecf305d9407d23"
   dependencies:
@@ -674,7 +734,7 @@ babel-plugin-transform-es2015-modules-systemjs@^6.23.0:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-modules-umd@^6.23.0:
+babel-plugin-transform-es2015-modules-umd@^6.23.0, babel-plugin-transform-es2015-modules-umd@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-umd/-/babel-plugin-transform-es2015-modules-umd-6.24.1.tgz#ac997e6285cd18ed6176adb607d602344ad38468"
   dependencies:
@@ -682,14 +742,14 @@ babel-plugin-transform-es2015-modules-umd@^6.23.0:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
-babel-plugin-transform-es2015-object-super@^6.22.0:
+babel-plugin-transform-es2015-object-super@^6.22.0, babel-plugin-transform-es2015-object-super@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-object-super/-/babel-plugin-transform-es2015-object-super-6.24.1.tgz#24cef69ae21cb83a7f8603dad021f572eb278f8d"
   dependencies:
     babel-helper-replace-supers "^6.24.1"
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-parameters@^6.23.0:
+babel-plugin-transform-es2015-parameters@^6.23.0, babel-plugin-transform-es2015-parameters@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-parameters/-/babel-plugin-transform-es2015-parameters-6.24.1.tgz#57ac351ab49caf14a97cd13b09f66fdf0a625f2b"
   dependencies:
@@ -700,7 +760,7 @@ babel-plugin-transform-es2015-parameters@^6.23.0:
     babel-traverse "^6.24.1"
     babel-types "^6.24.1"
 
-babel-plugin-transform-es2015-shorthand-properties@^6.22.0:
+babel-plugin-transform-es2015-shorthand-properties@^6.22.0, babel-plugin-transform-es2015-shorthand-properties@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-shorthand-properties/-/babel-plugin-transform-es2015-shorthand-properties-6.24.1.tgz#24f875d6721c87661bbd99a4622e51f14de38aa0"
   dependencies:
@@ -713,7 +773,7 @@ babel-plugin-transform-es2015-spread@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-sticky-regex@^6.22.0:
+babel-plugin-transform-es2015-sticky-regex@^6.22.0, babel-plugin-transform-es2015-sticky-regex@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-sticky-regex/-/babel-plugin-transform-es2015-sticky-regex-6.24.1.tgz#00c1cdb1aca71112cdf0cf6126c2ed6b457ccdbc"
   dependencies:
@@ -727,13 +787,13 @@ babel-plugin-transform-es2015-template-literals@^6.22.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-typeof-symbol@^6.23.0:
+babel-plugin-transform-es2015-typeof-symbol@^6.22.0, babel-plugin-transform-es2015-typeof-symbol@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-typeof-symbol/-/babel-plugin-transform-es2015-typeof-symbol-6.23.0.tgz#dec09f1cddff94b52ac73d505c84df59dcceb372"
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-es2015-unicode-regex@^6.22.0:
+babel-plugin-transform-es2015-unicode-regex@^6.22.0, babel-plugin-transform-es2015-unicode-regex@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-unicode-regex/-/babel-plugin-transform-es2015-unicode-regex-6.24.1.tgz#d38b12f42ea7323f729387f18a7c5ae1faeb35e9"
   dependencies:
@@ -741,7 +801,7 @@ babel-plugin-transform-es2015-unicode-regex@^6.22.0:
     babel-runtime "^6.22.0"
     regexpu-core "^2.0.0"
 
-babel-plugin-transform-exponentiation-operator@^6.22.0:
+babel-plugin-transform-exponentiation-operator@^6.22.0, babel-plugin-transform-exponentiation-operator@^6.24.1:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-exponentiation-operator/-/babel-plugin-transform-exponentiation-operator-6.24.1.tgz#2ab0c9c7f3098fa48907772bb813fe41e8de3a0e"
   dependencies:
@@ -749,13 +809,27 @@ babel-plugin-transform-exponentiation-operator@^6.22.0:
     babel-plugin-syntax-exponentiation-operator "^6.8.0"
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-flow-strip-types@^6.22.0:
+babel-plugin-transform-export-extensions@^6.22.0:
+  version "6.22.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-export-extensions/-/babel-plugin-transform-export-extensions-6.22.0.tgz#53738b47e75e8218589eea946cbbd39109bbe653"
+  dependencies:
+    babel-plugin-syntax-export-extensions "^6.8.0"
+    babel-runtime "^6.22.0"
+
+babel-plugin-transform-flow-strip-types@^6.22.0, babel-plugin-transform-flow-strip-types@^6.8.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-flow-strip-types/-/babel-plugin-transform-flow-strip-types-6.22.0.tgz#84cb672935d43714fdc32bce84568d87441cf7cf"
   dependencies:
     babel-plugin-syntax-flow "^6.18.0"
     babel-runtime "^6.22.0"
 
+babel-plugin-transform-object-rest-spread@^6.22.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-object-rest-spread/-/babel-plugin-transform-object-rest-spread-6.26.0.tgz#0f36692d50fef6b7e2d4b3ac1478137a963b7b06"
+  dependencies:
+    babel-plugin-syntax-object-rest-spread "^6.8.0"
+    babel-runtime "^6.26.0"
+
 babel-plugin-transform-react-display-name@^6.23.0:
   version "6.25.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-react-display-name/-/babel-plugin-transform-react-display-name-6.25.0.tgz#67e2bf1f1e9c93ab08db96792e05392bf2cc28d1"
@@ -784,7 +858,7 @@ babel-plugin-transform-react-jsx@^6.24.1:
     babel-plugin-syntax-jsx "^6.8.0"
     babel-runtime "^6.22.0"
 
-babel-plugin-transform-regenerator@^6.22.0:
+babel-plugin-transform-regenerator@^6.22.0, babel-plugin-transform-regenerator@^6.24.1:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz#e0703696fbde27f0a3efcacf8b4dca2f7b3a8f2f"
   dependencies:
@@ -832,6 +906,35 @@ babel-preset-env@^1.6.1:
     invariant "^2.2.2"
     semver "^5.3.0"
 
+babel-preset-es2015@^6.9.0:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-preset-es2015/-/babel-preset-es2015-6.24.1.tgz#d44050d6bc2c9feea702aaf38d727a0210538939"
+  dependencies:
+    babel-plugin-check-es2015-constants "^6.22.0"
+    babel-plugin-transform-es2015-arrow-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoped-functions "^6.22.0"
+    babel-plugin-transform-es2015-block-scoping "^6.24.1"
+    babel-plugin-transform-es2015-classes "^6.24.1"
+    babel-plugin-transform-es2015-computed-properties "^6.24.1"
+    babel-plugin-transform-es2015-destructuring "^6.22.0"
+    babel-plugin-transform-es2015-duplicate-keys "^6.24.1"
+    babel-plugin-transform-es2015-for-of "^6.22.0"
+    babel-plugin-transform-es2015-function-name "^6.24.1"
+    babel-plugin-transform-es2015-literals "^6.22.0"
+    babel-plugin-transform-es2015-modules-amd "^6.24.1"
+    babel-plugin-transform-es2015-modules-commonjs "^6.24.1"
+    babel-plugin-transform-es2015-modules-systemjs "^6.24.1"
+    babel-plugin-transform-es2015-modules-umd "^6.24.1"
+    babel-plugin-transform-es2015-object-super "^6.24.1"
+    babel-plugin-transform-es2015-parameters "^6.24.1"
+    babel-plugin-transform-es2015-shorthand-properties "^6.24.1"
+    babel-plugin-transform-es2015-spread "^6.22.0"
+    babel-plugin-transform-es2015-sticky-regex "^6.24.1"
+    babel-plugin-transform-es2015-template-literals "^6.22.0"
+    babel-plugin-transform-es2015-typeof-symbol "^6.22.0"
+    babel-plugin-transform-es2015-unicode-regex "^6.24.1"
+    babel-plugin-transform-regenerator "^6.24.1"
+
 babel-preset-flow@^6.23.0:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-preset-flow/-/babel-preset-flow-6.23.0.tgz#e71218887085ae9a24b5be4169affb599816c49d"
@@ -849,7 +952,34 @@ babel-preset-react@^6.24.1:
     babel-plugin-transform-react-jsx-source "^6.22.0"
     babel-preset-flow "^6.23.0"
 
-babel-register@^6.26.0:
+babel-preset-stage-1@^6.5.0:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-preset-stage-1/-/babel-preset-stage-1-6.24.1.tgz#7692cd7dcd6849907e6ae4a0a85589cfb9e2bfb0"
+  dependencies:
+    babel-plugin-transform-class-constructor-call "^6.24.1"
+    babel-plugin-transform-export-extensions "^6.22.0"
+    babel-preset-stage-2 "^6.24.1"
+
+babel-preset-stage-2@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-preset-stage-2/-/babel-preset-stage-2-6.24.1.tgz#d9e2960fb3d71187f0e64eec62bc07767219bdc1"
+  dependencies:
+    babel-plugin-syntax-dynamic-import "^6.18.0"
+    babel-plugin-transform-class-properties "^6.24.1"
+    babel-plugin-transform-decorators "^6.24.1"
+    babel-preset-stage-3 "^6.24.1"
+
+babel-preset-stage-3@^6.24.1:
+  version "6.24.1"
+  resolved "https://registry.yarnpkg.com/babel-preset-stage-3/-/babel-preset-stage-3-6.24.1.tgz#836ada0a9e7a7fa37cb138fb9326f87934a48395"
+  dependencies:
+    babel-plugin-syntax-trailing-function-commas "^6.22.0"
+    babel-plugin-transform-async-generator-functions "^6.24.1"
+    babel-plugin-transform-async-to-generator "^6.24.1"
+    babel-plugin-transform-exponentiation-operator "^6.24.1"
+    babel-plugin-transform-object-rest-spread "^6.22.0"
+
+babel-register@^6.26.0, babel-register@^6.9.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-register/-/babel-register-6.26.0.tgz#6ed021173e2fcb486d7acb45c6009a856f647071"
   dependencies:
@@ -861,7 +991,7 @@ babel-register@^6.26.0:
     mkdirp "^0.5.1"
     source-map-support "^0.4.15"
 
-babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0, babel-runtime@^6.9.2:
+babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
   dependencies:
@@ -901,7 +1031,7 @@ babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
     lodash "^4.17.4"
     to-fast-properties "^1.0.3"
 
-babylon@^6.18.0:
+babylon@^6.17.3, babylon@^6.18.0:
   version "6.18.0"
   resolved "https://registry.yarnpkg.com/babylon/-/babylon-6.18.0.tgz#af2f3b88fa6f5c1e4c634d1a0f8eac4f55b395e3"
 
@@ -965,11 +1095,9 @@ binary-extensions@^1.0.0:
   version "1.11.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
 
-bl@^1.0.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-1.2.1.tgz#cac328f7bee45730d404b692203fcb590e172d5e"
-  dependencies:
-    readable-stream "^2.0.5"
+binaryextensions@2:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/binaryextensions/-/binaryextensions-2.1.1.tgz#3209a51ca4a4ad541a3b8d3d6a6d5b83a2485935"
 
 blob@0.0.4:
   version "0.0.4"
@@ -981,7 +1109,7 @@ block-stream@*:
   dependencies:
     inherits "~2.0.0"
 
-bluebird@^3.5.1:
+bluebird@^3.4.7, bluebird@^3.5.1:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
 
@@ -1015,6 +1143,10 @@ bonjour@^3.5.0:
     multicast-dns "^6.0.1"
     multicast-dns-service-types "^1.1.0"
 
+boolbase@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
+
 boom@2.x.x:
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
@@ -1123,10 +1255,6 @@ browserslist@^2.1.2:
     caniuse-lite "^1.0.30000792"
     electron-to-chromium "^1.3.30"
 
-buffer-crc32@^0.2.1:
-  version "0.2.13"
-  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
-
 buffer-indexof@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-indexof/-/buffer-indexof-1.1.1.tgz#52fabcc6a606d1a00302802648ef68f639da268c"
@@ -1201,6 +1329,13 @@ callsites@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
 
+camel-case@3.0.x:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/camel-case/-/camel-case-3.0.0.tgz#ca3c3688a4e9cf3a4cda777dc4dcbc713249cf73"
+  dependencies:
+    no-case "^2.2.0"
+    upper-case "^1.1.1"
+
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
@@ -1208,18 +1343,10 @@ camelcase-keys@^2.0.0:
     camelcase "^2.0.0"
     map-obj "^1.0.0"
 
-camelcase@^1.0.2:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
-
 camelcase@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
 
-camelcase@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
-
 camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
@@ -1249,14 +1376,7 @@ caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
 
-center-align@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/center-align/-/center-align-0.1.3.tgz#aa0d32629b6ee972200411cbd4461c907bc2b7ad"
-  dependencies:
-    align-text "^0.1.3"
-    lazy-cache "^1.0.3"
-
-chalk@^1.1.1, chalk@^1.1.3:
+chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -1266,7 +1386,7 @@ chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.0.0, chalk@^2.1.0, chalk@^2.3.1:
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.1.tgz#523fe2678aec7b04e8041909292fe8b17059b796"
   dependencies:
@@ -1274,11 +1394,19 @@ chalk@^2.0.0, chalk@^2.1.0, chalk@^2.3.1:
     escape-string-regexp "^1.0.5"
     supports-color "^5.2.0"
 
+chalk@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
+  dependencies:
+    ansi-styles "~1.0.0"
+    has-color "~0.1.0"
+    strip-ansi "~0.1.0"
+
 chardet@^0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
 
-chokidar@^1.6.0, chokidar@^1.7.0:
+chokidar@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
   dependencies:
@@ -1315,6 +1443,10 @@ chownr@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.0.1.tgz#e2a75042a9551908bebd25b8523d5f9769d79181"
 
+chrome-trace-event@^0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/chrome-trace-event/-/chrome-trace-event-0.1.2.tgz#90f36885d5345a50621332f0717b595883d5d982"
+
 cipher-base@^1.0.0, cipher-base@^1.0.1, cipher-base@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/cipher-base/-/cipher-base-1.0.4.tgz#8760e4ecc272f4c363532f926d874aae2c1397de"
@@ -1341,24 +1473,45 @@ class-utils@^0.3.5:
     isobject "^3.0.0"
     static-extend "^0.1.1"
 
+clean-css@4.1.x:
+  version "4.1.9"
+  resolved "https://registry.yarnpkg.com/clean-css/-/clean-css-4.1.9.tgz#35cee8ae7687a49b98034f70de00c4edd3826301"
+  dependencies:
+    source-map "0.5.x"
+
+cli-cursor@^1.0.1, cli-cursor@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
+  dependencies:
+    restore-cursor "^1.0.1"
+
 cli-cursor@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
   dependencies:
     restore-cursor "^2.0.0"
 
+cli-spinners@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-0.1.2.tgz#bb764d88e185fb9e1e6a2a1f19772318f605e31c"
+
+cli-table@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/cli-table/-/cli-table-0.3.1.tgz#f53b05266a8b1a0b934b3d0821e6e2dc5914ae23"
+  dependencies:
+    colors "1.0.3"
+
+cli-truncate@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/cli-truncate/-/cli-truncate-0.2.1.tgz#9f15cfbb0705005369216c626ac7d05ab90dd574"
+  dependencies:
+    slice-ansi "0.0.4"
+    string-width "^1.0.1"
+
 cli-width@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
 
-cliui@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
-  dependencies:
-    center-align "^0.1.1"
-    right-align "^0.1.1"
-    wordwrap "0.0.2"
-
 cliui@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
@@ -1367,10 +1520,34 @@ cliui@^3.2.0:
     strip-ansi "^3.0.1"
     wrap-ansi "^2.0.0"
 
-clone@^1.0.2:
+clone-buffer@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/clone-buffer/-/clone-buffer-1.0.0.tgz#e3e25b207ac4e701af721e2cb5a16792cac3dc58"
+
+clone-stats@^0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/clone-stats/-/clone-stats-0.0.1.tgz#b88f94a82cf38b8791d58046ea4029ad88ca99d1"
+
+clone-stats@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/clone-stats/-/clone-stats-1.0.0.tgz#b3782dff8bb5474e18b9b6bf0fdfe782f8777680"
+
+clone@^1.0.0, clone@^1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.3.tgz#298d7e2231660f40c003c2ed3140decf3f53085f"
 
+clone@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-2.1.1.tgz#d217d1e961118e3ac9a4b8bba3285553bf647cdb"
+
+cloneable-readable@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/cloneable-readable/-/cloneable-readable-1.0.0.tgz#a6290d413f217a61232f95e458ff38418cfb0117"
+  dependencies:
+    inherits "^2.0.1"
+    process-nextick-args "^1.0.6"
+    through2 "^2.0.1"
+
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
@@ -1385,6 +1562,14 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
+codecov@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/codecov/-/codecov-3.0.0.tgz#c273b8c4f12945723e8dc9d25803d89343e5f28e"
+  dependencies:
+    argv "0.0.2"
+    request "2.81.0"
+    urlgrey "0.4.4"
+
 collection-visit@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/collection-visit/-/collection-visit-1.0.0.tgz#4bc0373c164bc3291b4d368c829cf1a80a59dca0"
@@ -1424,17 +1609,21 @@ colormin@^1.0.5:
     css-color-names "0.0.4"
     has "^1.0.1"
 
-colors@*, colors@~1.1.2:
+colors@*, colors@^1.1.2, colors@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
 
+colors@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
+
 combined-stream@^1.0.5, combined-stream@~1.0.5:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@~2.14.1:
+commander@2.14.x, commander@~2.14.1:
   version "2.14.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.14.1.tgz#2235123e37af8ca3c65df45b026dbd357b01b9aa"
 
@@ -1458,15 +1647,6 @@ component-inherit@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
 
-compress-commons@^1.2.0:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/compress-commons/-/compress-commons-1.2.2.tgz#524a9f10903f3a813389b0225d27c48bb751890f"
-  dependencies:
-    buffer-crc32 "^0.2.1"
-    crc32-stream "^2.0.0"
-    normalize-path "^2.0.0"
-    readable-stream "^2.0.0"
-
 compressible@~2.0.13:
   version "2.0.13"
   resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.13.tgz#0d1020ab924b2fdb4d6279875c7d6daba6baa7a9"
@@ -1489,7 +1669,7 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-concat-stream@^1.5.0, concat-stream@^1.6.0:
+concat-stream@^1.4.7, concat-stream@^1.5.0, concat-stream@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.0.tgz#0aac662fd52be78964d5532f694784e70110acf7"
   dependencies:
@@ -1554,7 +1734,7 @@ core-js@^1.0.0:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
 
-core-js@^2.4.0, core-js@^2.5.0:
+core-js@^2.4.0, core-js@^2.4.1, core-js@^2.5.0:
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.5.3.tgz#8acc38345824f16d8365b7c9b4259168e8ed603e"
 
@@ -1562,33 +1742,6 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
-cpx@^1.5.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/cpx/-/cpx-1.5.0.tgz#185be018511d87270dedccc293171e37655ab88f"
-  dependencies:
-    babel-runtime "^6.9.2"
-    chokidar "^1.6.0"
-    duplexer "^0.1.1"
-    glob "^7.0.5"
-    glob2base "^0.0.12"
-    minimatch "^3.0.2"
-    mkdirp "^0.5.1"
-    resolve "^1.1.7"
-    safe-buffer "^5.0.1"
-    shell-quote "^1.6.1"
-    subarg "^1.0.0"
-
-crc32-stream@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/crc32-stream/-/crc32-stream-2.0.0.tgz#e3cdd3b4df3168dd74e3de3fbbcb7b297fe908f4"
-  dependencies:
-    crc "^3.4.4"
-    readable-stream "^2.0.0"
-
-crc@^3.4.4, crc@^3.5.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/crc/-/crc-3.5.0.tgz#98b8ba7d489665ba3979f59b21381374101a1964"
-
 create-ecdh@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.0.tgz#888c723596cdf7612f6498233eebd7a35301737d"
@@ -1616,7 +1769,7 @@ create-hmac@^1.1.0, create-hmac@^1.1.2, create-hmac@^1.1.4:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
-cross-env@^5.1.1:
+cross-env@^5.1.3:
   version "5.1.3"
   resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-5.1.3.tgz#f8ae18faac87692b0a8b4d2f7000d4ec3a85dfd7"
   dependencies:
@@ -1657,7 +1810,7 @@ css-color-names@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/css-color-names/-/css-color-names-0.0.4.tgz#808adc2e79cf84738069b646cb20ec27beb629e0"
 
-css-loader@^0.28.7:
+css-loader@^0.28.10:
   version "0.28.10"
   resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-0.28.10.tgz#40282e79230f7bcb4e483efa631d670b735ebf42"
   dependencies:
@@ -1676,6 +1829,15 @@ css-loader@^0.28.7:
     postcss-value-parser "^3.3.0"
     source-list-map "^2.0.0"
 
+css-select@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/css-select/-/css-select-1.2.0.tgz#2b3a110539c5355f1cd8d314623e870b121ec858"
+  dependencies:
+    boolbase "~1.0.0"
+    css-what "2.1"
+    domutils "1.5.1"
+    nth-check "~1.0.1"
+
 css-selector-tokenizer@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/css-selector-tokenizer/-/css-selector-tokenizer-0.7.0.tgz#e6988474ae8c953477bf5e7efecfceccd9cf4c86"
@@ -1684,11 +1846,15 @@ css-selector-tokenizer@^0.7.0:
     fastparse "^1.1.1"
     regexpu-core "^1.0.0"
 
+css-what@2.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.0.tgz#9467d032c38cfaefb9f2d79501253062f87fa1bd"
+
 cssesc@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/cssesc/-/cssesc-0.1.0.tgz#c814903e45623371a0477b40109aaafbeeaddbb4"
 
-cssnano@^3.10.0, cssnano@^3.4.0:
+cssnano@^3.10.0:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-3.10.0.tgz#4f38f6cea2b9b17fa01490f23f1dc68ea65c1c38"
   dependencies:
@@ -1742,11 +1908,9 @@ cyclist@~0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-0.2.2.tgz#1b33792e11e914a2fd6d6ed6447464444e5fa640"
 
-d@1:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
-  dependencies:
-    es5-ext "^0.10.9"
+dargs@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/dargs/-/dargs-5.1.0.tgz#ec7ea50c78564cd36c9d5ec18f66329fade27829"
 
 dashdash@^1.12.0:
   version "1.14.1"
@@ -1754,10 +1918,18 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
+date-fns@^1.27.2:
+  version "1.29.0"
+  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.29.0.tgz#12e609cdcb935127311d04d33334e2960a2a54e6"
+
 date-now@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
 
+dateformat@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-2.2.0.tgz#4065e2013cf9fb916ddfd82efb506ad4c6769062"
+
 debug@2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
@@ -1770,7 +1942,7 @@ debug@2.3.3:
   dependencies:
     ms "0.7.2"
 
-debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.6, debug@^2.6.8:
+debug@2.6.9, debug@^2.0.0, debug@^2.1.0, debug@^2.2.0, debug@^2.3.3, debug@^2.6.6, debug@^2.6.8:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -1782,7 +1954,7 @@ debug@^3.1.0:
   dependencies:
     ms "2.0.0"
 
-decamelize@^1.0.0, decamelize@^1.1.1, decamelize@^1.1.2:
+decamelize@^1.1.1, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
 
@@ -1790,11 +1962,17 @@ decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
 
+decompress-response@^3.2.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-3.3.0.tgz#80a4dd323748384bfa248083622aedec982adff3"
+  dependencies:
+    mimic-response "^1.0.0"
+
 deep-equal@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.0.1.tgz#f5d260292b660e084eff4cdbc9f08ad3247448b5"
 
-deep-extend@~0.4.0:
+deep-extend@^0.4.0, deep-extend@~0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.4.2.tgz#48b699c27e334bf89f10892be432f6e4c7d34a7f"
 
@@ -1882,6 +2060,10 @@ destroy@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
 
+detect-conflict@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/detect-conflict/-/detect-conflict-1.0.1.tgz#088657a66a961c05019db7c4230883b1c6b4176e"
+
 detect-indent@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-4.0.0.tgz#f76d064352cdf43a1cb6ce619c4ee3a9475de208"
@@ -1896,6 +2078,14 @@ detect-node@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.0.3.tgz#a2033c09cc8e158d37748fbde7507832bd6ce127"
 
+diff@^2.1.2:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-2.2.3.tgz#60eafd0d28ee906e4e8ff0a52c1229521033bf99"
+
+diff@^3.3.0, diff@^3.3.1:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-3.4.0.tgz#b1d85507daf3964828de54b37d0d73ba67dda56c"
+
 diffie-hellman@^5.0.0:
   version "5.0.2"
   resolved "https://registry.yarnpkg.com/diffie-hellman/-/diffie-hellman-5.0.2.tgz#b5835739270cfe26acf632099fded2a07f209e5e"
@@ -1927,13 +2117,61 @@ doctrine@^2.1.0:
   dependencies:
     esutils "^2.0.2"
 
+dom-converter@~0.1:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/dom-converter/-/dom-converter-0.1.4.tgz#a45ef5727b890c9bffe6d7c876e7b19cb0e17f3b"
+  dependencies:
+    utila "~0.3"
+
+dom-serializer@0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
+  dependencies:
+    domelementtype "~1.1.1"
+    entities "~1.1.1"
+
+dom-walk@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/dom-walk/-/dom-walk-0.1.1.tgz#672226dc74c8f799ad35307df936aba11acd6018"
+
 domain-browser@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
 
-duplexer@^0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
+domelementtype@1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.0.tgz#b17aed82e8ab59e52dd9c19b1756e0fc187204c2"
+
+domelementtype@~1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.1.3.tgz#bd28773e2642881aec51544924299c5cd822185b"
+
+domhandler@2.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.1.0.tgz#d2646f5e57f6c3bab11cf6cb05d3c0acf7412594"
+  dependencies:
+    domelementtype "1"
+
+domutils@1.1:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.1.6.tgz#bddc3de099b9a2efacc51c623f28f416ecc57485"
+  dependencies:
+    domelementtype "1"
+
+domutils@1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.5.1.tgz#dcd8488a26f563d61079e48c9f7b7e32373682cf"
+  dependencies:
+    dom-serializer "0"
+    domelementtype "1"
+
+dotenv@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-5.0.1.tgz#a5317459bd3d79ab88cff6e44057a6a3fbb1fcef"
+
+duplexer3@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
 
 duplexify@^3.4.2, duplexify@^3.5.3:
   version "3.5.3"
@@ -1958,14 +2196,26 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
+editions@^1.3.3:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/editions/-/editions-1.3.4.tgz#3662cb592347c3168eb8e498a0ff73271d67f50b"
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 
+ejs@^2.3.1:
+  version "2.5.7"
+  resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.7.tgz#cc872c168880ae3c7189762fd5ffc00896c9518a"
+
 electron-to-chromium@^1.2.7, electron-to-chromium@^1.3.30:
   version "1.3.33"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.33.tgz#bf00703d62a7c65238136578c352d6c5c042a545"
 
+elegant-spinner@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
+
 elliptic@^6.0.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
@@ -2037,7 +2287,7 @@ engine.io@~1.8.4:
     engine.io-parser "1.3.2"
     ws "~1.1.5"
 
-enhanced-resolve@^3.4.0:
+enhanced-resolve@^3.4.1:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz#0421e339fd71419b3da13d129b3979040230476e"
   dependencies:
@@ -2046,6 +2296,18 @@ enhanced-resolve@^3.4.0:
     object-assign "^4.0.1"
     tapable "^0.2.7"
 
+enhanced-resolve@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-4.0.0.tgz#e34a6eaa790f62fccd71d93959f56b2b432db10a"
+  dependencies:
+    graceful-fs "^4.1.2"
+    memory-fs "^0.4.0"
+    tapable "^1.0.0"
+
+entities@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.1.tgz#6e5c2d0a5621b5dadaecef80b90edfb5cd7772f0"
+
 errno@^0.1.3, errno@^0.1.4:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
@@ -2058,6 +2320,13 @@ error-ex@^1.2.0:
   dependencies:
     is-arrayish "^0.2.1"
 
+error@^7.0.2:
+  version "7.0.2"
+  resolved "https://registry.yarnpkg.com/error/-/error-7.0.2.tgz#a5f75fff4d9926126ddac0ea5dc38e689153cb02"
+  dependencies:
+    string-template "~0.2.1"
+    xtend "~4.0.0"
+
 es-abstract@^1.7.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.10.0.tgz#1ecb36c197842a00d8ee4c2dfd8646bb97d60864"
@@ -2076,57 +2345,12 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
-es5-ext@^0.10.14, es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
-  version "0.10.39"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.39.tgz#fca21b67559277ca4ac1a1ed7048b107b6f76d87"
+es6-templates@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/es6-templates/-/es6-templates-0.2.3.tgz#5cb9ac9fb1ded6eb1239342b81d792bbb4078ee4"
   dependencies:
-    es6-iterator "~2.0.3"
-    es6-symbol "~3.1.1"
-
-es6-iterator@^2.0.1, es6-iterator@~2.0.1, es6-iterator@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.35"
-    es6-symbol "^3.1.1"
-
-es6-map@^0.1.3:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-map/-/es6-map-0.1.5.tgz#9136e0503dcc06a301690f0bb14ff4e364e949f0"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-set "~0.1.5"
-    es6-symbol "~3.1.1"
-    event-emitter "~0.3.5"
-
-es6-set@~0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-    es6-iterator "~2.0.1"
-    es6-symbol "3.1.1"
-    event-emitter "~0.3.5"
-
-es6-symbol@3.1.1, es6-symbol@^3.1.1, es6-symbol@~3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
-es6-weak-map@^2.0.1:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/es6-weak-map/-/es6-weak-map-2.0.2.tgz#5e3ab32251ffd1538a1f8e5ffa1357772f92d96f"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.14"
-    es6-iterator "^2.0.1"
-    es6-symbol "^3.1.1"
+    recast "~0.11.12"
+    through "~2.3.6"
 
 escape-html@~1.0.3:
   version "1.0.3"
@@ -2136,15 +2360,6 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
-escope@^3.6.0:
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
-  dependencies:
-    es6-map "^0.1.3"
-    es6-weak-map "^2.0.1"
-    esrecurse "^4.1.0"
-    estraverse "^4.1.1"
-
 eslint-config-prettier@^2.6.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/eslint-config-prettier/-/eslint-config-prettier-2.9.0.tgz#5ecd65174d486c22dff389fe036febf502d468a3"
@@ -2222,10 +2437,14 @@ esprima@^2.6.0:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
-esprima@^4.0.0:
+esprima@^4.0.0, esprima@~4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
 
+esprima@~3.1.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
 esquery@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
@@ -2233,11 +2452,10 @@ esquery@^1.0.0:
     estraverse "^4.0.0"
 
 esrecurse@^4.1.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.0.tgz#fa9568d98d3823f9a41d91e902dcab9ea6e5b163"
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
   dependencies:
     estraverse "^4.1.0"
-    object-assign "^4.0.1"
 
 estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1:
   version "4.2.0"
@@ -2251,13 +2469,6 @@ etag@~1.8.1:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
 
-event-emitter@~0.3.5:
-  version "0.3.5"
-  resolved "https://registry.yarnpkg.com/event-emitter/-/event-emitter-0.3.5.tgz#df8c69eef1647923c7157b9ce83840610b02cc39"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
 eventemitter3@1.x.x:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-1.2.0.tgz#1c86991d816ad1e504750e73874224ecf3bec508"
@@ -2291,6 +2502,10 @@ execa@^0.7.0:
     signal-exit "^3.0.0"
     strip-eof "^1.0.0"
 
+exit-hook@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
+
 expand-brackets@^0.1.4:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
@@ -2315,6 +2530,12 @@ expand-range@^1.8.1:
   dependencies:
     fill-range "^2.1.0"
 
+expand-tilde@^2.0.0, expand-tilde@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-2.0.2.tgz#97e801aa052df02454de46b02bf621642cdc8502"
+  dependencies:
+    homedir-polyfill "^1.0.1"
+
 express@^4.10.7, express@^4.16.2:
   version "4.16.2"
   resolved "https://registry.yarnpkg.com/express/-/express-4.16.2.tgz#e35c6dfe2d64b7dca0a5cd4f21781be3299e076c"
@@ -2363,10 +2584,18 @@ extend-shallow@^3.0.0, extend-shallow@^3.0.2:
     assign-symbols "^1.0.0"
     is-extendable "^1.0.1"
 
-extend@~3.0.0:
+extend@^3.0.0, extend@~3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
 
+external-editor@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-1.1.1.tgz#12d7b0db850f7ff7e7081baf4005700060c4600b"
+  dependencies:
+    extend "^3.0.0"
+    spawn-sync "^1.0.15"
+    tmp "^0.0.29"
+
 external-editor@^2.0.4:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.1.0.tgz#3d026a21b7f95b5726387d4200ac160d372c3b48"
@@ -2394,14 +2623,14 @@ extglob@^2.0.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-extract-text-webpack-plugin@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/extract-text-webpack-plugin/-/extract-text-webpack-plugin-3.0.2.tgz#5f043eaa02f9750a9258b78c0a6e0dc1408fb2f7"
+extract-text-webpack-plugin@4.0.0-alpha.0:
+  version "4.0.0-alpha.0"
+  resolved "https://registry.yarnpkg.com/extract-text-webpack-plugin/-/extract-text-webpack-plugin-4.0.0-alpha.0.tgz#38d6cfa92aef05fdeaec2043a6de9fa5eb47bec8"
   dependencies:
     async "^2.4.1"
     loader-utils "^1.1.0"
-    schema-utils "^0.3.0"
-    webpack-sources "^1.0.1"
+    schema-utils "^0.4.5"
+    webpack-sources "^1.1.0"
 
 extsprintf@1.3.0:
   version "1.3.0"
@@ -2412,8 +2641,8 @@ extsprintf@^1.2.0:
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
 
 fast-deep-equal@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
 
 fast-diff@^1.1.1:
   version "1.1.2"
@@ -2455,6 +2684,13 @@ fbjs@^0.8.16:
     setimmediate "^1.0.5"
     ua-parser-js "^0.7.9"
 
+figures@^1.3.5, figures@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+  dependencies:
+    escape-string-regexp "^1.0.5"
+    object-assign "^4.1.0"
+
 figures@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
@@ -2468,32 +2704,17 @@ file-entry-cache@^2.0.0:
     flat-cache "^1.2.1"
     object-assign "^4.0.1"
 
-file-loader@^1.1.5:
-  version "1.1.9"
-  resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.9.tgz#cf152aedbcfb3d67038d0845efb7cf11a96e53de"
+file-loader@^1.1.10:
+  version "1.1.10"
+  resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.10.tgz#77e97dfeab13da64c7085ab3e3887e29ae588aea"
   dependencies:
     loader-utils "^1.0.2"
     schema-utils "^0.4.5"
 
-filemanager-webpack-plugin@^1.0.16:
-  version "1.0.24"
-  resolved "https://registry.yarnpkg.com/filemanager-webpack-plugin/-/filemanager-webpack-plugin-1.0.24.tgz#96a16abf7b614b3971ef623ae8a0be029c84a5eb"
-  dependencies:
-    archiver "^2.1.1"
-    cpx "^1.5.0"
-    fs-extra "^5.0.0"
-    make-dir "^1.1.0"
-    mv "^2.1.1"
-    rimraf "^2.6.2"
-
 filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
 
-filesize@^3.2.1:
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/filesize/-/filesize-3.6.0.tgz#22d079615624bb6fd3c04026120628a41b3f4efa"
-
 fill-range@^2.1.0:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.3.tgz#50b77dfd7e469bc7492470963699fe7a8485a723"
@@ -2533,10 +2754,6 @@ find-cache-dir@^1.0.0:
     make-dir "^1.0.0"
     pkg-dir "^2.0.0"
 
-find-index@^0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/find-index/-/find-index-0.1.1.tgz#675d358b2ca3892d795a1ab47232f8b6e2e0dde4"
-
 find-up@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
@@ -2550,6 +2767,12 @@ find-up@^2.0.0, find-up@^2.1.0:
   dependencies:
     locate-path "^2.0.0"
 
+first-chunk-stream@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/first-chunk-stream/-/first-chunk-stream-2.0.0.tgz#1bdecdb8e083c0664b91945581577a43a9f31d70"
+  dependencies:
+    readable-stream "^2.0.2"
+
 flat-cache@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
@@ -2563,6 +2786,10 @@ flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
 
+flow-parser@^0.*:
+  version "0.66.0"
+  resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.66.0.tgz#be583fefb01192aa5164415d31a6241b35718983"
+
 flush-write-stream@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/flush-write-stream/-/flush-write-stream-1.0.2.tgz#c81b90d8746766f1a609a46809946c45dd8ae417"
@@ -2617,22 +2844,6 @@ from2@^2.1.0:
     inherits "^2.0.1"
     readable-stream "^2.0.0"
 
-fs-extra@^4.0.2:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-4.0.3.tgz#0d852122e5bc5beb453fb028e9c0c9bf36340c94"
-  dependencies:
-    graceful-fs "^4.1.2"
-    jsonfile "^4.0.0"
-    universalify "^0.1.0"
-
-fs-extra@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-5.0.0.tgz#414d0110cdd06705734d055652c5411260c31abd"
-  dependencies:
-    graceful-fs "^4.1.2"
-    jsonfile "^4.0.0"
-    universalify "^0.1.0"
-
 fs-write-stream-atomic@^1.0.8:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz#b47df53493ef911df75731e70a9ded0189db40c9"
@@ -2717,6 +2928,26 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
+gh-got@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/gh-got/-/gh-got-6.0.0.tgz#d74353004c6ec466647520a10bd46f7299d268d0"
+  dependencies:
+    got "^7.0.0"
+    is-plain-obj "^1.1.0"
+
+github-username@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/github-username/-/github-username-4.1.0.tgz#cbe280041883206da4212ae9e4b5f169c30bf417"
+  dependencies:
+    gh-got "^6.0.0"
+
+glob-all@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/glob-all/-/glob-all-3.1.0.tgz#8913ddfb5ee1ac7812656241b03d5217c64b02ab"
+  dependencies:
+    glob "^7.0.5"
+    yargs "~1.2.6"
+
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
@@ -2737,12 +2968,6 @@ glob-parent@^3.1.0:
     is-glob "^3.1.0"
     path-dirname "^1.0.0"
 
-glob2base@^0.0.12:
-  version "0.0.12"
-  resolved "https://registry.yarnpkg.com/glob2base/-/glob2base-0.0.12.tgz#9d419b3e28f12e83a362164a277055922c9c0d56"
-  dependencies:
-    find-index "^0.1.1"
-
 glob@^6.0.1:
   version "6.0.4"
   resolved "https://registry.yarnpkg.com/glob/-/glob-6.0.4.tgz#0f08860f6a155127b2fadd4f9ce24b1aab6e4d22"
@@ -2764,6 +2989,31 @@ glob@^7.0.0, glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+global-modules@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-1.0.0.tgz#6d770f0eb523ac78164d72b5e71a8877265cc3ea"
+  dependencies:
+    global-prefix "^1.0.1"
+    is-windows "^1.0.1"
+    resolve-dir "^1.0.0"
+
+global-prefix@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/global-prefix/-/global-prefix-1.0.2.tgz#dbf743c6c14992593c655568cb66ed32c0122ebe"
+  dependencies:
+    expand-tilde "^2.0.2"
+    homedir-polyfill "^1.0.1"
+    ini "^1.3.4"
+    is-windows "^1.0.1"
+    which "^1.2.14"
+
+global@^4.3.2:
+  version "4.3.2"
+  resolved "https://registry.yarnpkg.com/global/-/global-4.3.2.tgz#e76989268a6c74c38908b1305b10fc0e394e9d0f"
+  dependencies:
+    min-document "^2.19.0"
+    process "~0.5.1"
+
 globals@^11.0.1:
   version "11.3.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-11.3.0.tgz#e04fdb7b9796d8adac9c8f64c14837b2313378b0"
@@ -2772,6 +3022,17 @@ globals@^9.18.0:
   version "9.18.0"
   resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
 
+globby@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-4.1.0.tgz#080f54549ec1b82a6c60e631fc82e1211dbe95f8"
+  dependencies:
+    array-union "^1.0.1"
+    arrify "^1.0.0"
+    glob "^6.0.1"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
 globby@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-5.0.0.tgz#ebd84667ca0dbb330b99bcfc68eac2bc54370e0d"
@@ -2793,24 +3054,39 @@ globby@^6.1.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
+got@^7.0.0, got@^7.1.0:
+  version "7.1.0"
+  resolved "https://registry.yarnpkg.com/got/-/got-7.1.0.tgz#05450fd84094e6bbea56f451a43a9c289166385a"
+  dependencies:
+    decompress-response "^3.2.0"
+    duplexer3 "^0.1.4"
+    get-stream "^3.0.0"
+    is-plain-obj "^1.1.0"
+    is-retry-allowed "^1.0.0"
+    is-stream "^1.0.0"
+    isurl "^1.0.0-alpha5"
+    lowercase-keys "^1.0.0"
+    p-cancelable "^0.3.0"
+    p-timeout "^1.1.1"
+    safe-buffer "^5.0.1"
+    timed-out "^4.0.0"
+    url-parse-lax "^1.0.0"
+    url-to-options "^1.0.1"
+
+graceful-fs@^4.1.11, graceful-fs@^4.1.2:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
+grouped-queue@^0.3.0, grouped-queue@^0.3.3:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/grouped-queue/-/grouped-queue-0.3.3.tgz#c167d2a5319c5a0e0964ef6a25b7c2df8996c85c"
+  dependencies:
+    lodash "^4.17.2"
+
 handle-thing@^1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/handle-thing/-/handle-thing-1.2.5.tgz#fd7aad726bf1a5fd16dfc29b2f7a6601d27139c4"
 
-handlebars@^4.0.11:
-  version "4.0.11"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
-  dependencies:
-    async "^1.4.0"
-    optimist "^0.6.1"
-    source-map "^0.4.4"
-  optionalDependencies:
-    uglify-js "^2.6"
-
 har-schema@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-1.0.5.tgz#d263135f43307c02c602afc8fe95970c0151369e"
@@ -2834,6 +3110,10 @@ has-binary@0.1.7:
   dependencies:
     isarray "0.0.1"
 
+has-color@~0.1.0:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/has-color/-/has-color-0.1.7.tgz#67144a5260c34fc3cca677d041daf52fe7b78b2f"
+
 has-cors@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
@@ -2850,6 +3130,16 @@ has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
 
+has-symbol-support-x@^1.4.1:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/has-symbol-support-x/-/has-symbol-support-x-1.4.2.tgz#1409f98bc00247da45da67cee0a36f282ff26455"
+
+has-to-string-tag-x@^1.2.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/has-to-string-tag-x/-/has-to-string-tag-x-1.4.1.tgz#a045ab383d7b4b2012a00148ab0aa5f290044d4d"
+  dependencies:
+    has-symbol-support-x "^1.4.1"
+
 has-unicode@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
@@ -2916,6 +3206,20 @@ hawk@3.1.3, hawk@~3.1.3:
     hoek "2.x.x"
     sntp "1.x.x"
 
+he@1.1.x:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
+
+history@^4.7.2:
+  version "4.7.2"
+  resolved "https://registry.yarnpkg.com/history/-/history-4.7.2.tgz#22b5c7f31633c5b8021c7f4a8a954ac139ee8d5b"
+  dependencies:
+    invariant "^2.2.1"
+    loose-envify "^1.2.0"
+    resolve-pathname "^2.2.0"
+    value-equal "^0.4.0"
+    warning "^3.0.0"
+
 hmac-drbg@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
@@ -2928,6 +3232,10 @@ hoek@2.x.x:
   version "2.16.3"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
 
+hoist-non-react-statics@^2.3.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/hoist-non-react-statics/-/hoist-non-react-statics-2.5.0.tgz#d2ca2dfc19c5a91c5a6615ce8e564ef0347e2a40"
+
 home-or-tmp@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-2.0.0.tgz#e36c3f2d2cae7d746a857e38d18d5f32a7882db8"
@@ -2935,6 +3243,12 @@ home-or-tmp@^2.0.0:
     os-homedir "^1.0.0"
     os-tmpdir "^1.0.1"
 
+homedir-polyfill@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/homedir-polyfill/-/homedir-polyfill-1.0.1.tgz#4c2bbc8a758998feebf5ed68580f76d46768b4bc"
+  dependencies:
+    parse-passwd "^1.0.0"
+
 hosted-git-info@^2.1.4:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.5.0.tgz#6d60e34b3abbc8313062c3b798ef8d901a07af3c"
@@ -2956,6 +3270,50 @@ html-entities@^1.2.0:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-1.2.1.tgz#0df29351f0721163515dfb9e5543e5f6eed5162f"
 
+html-loader@^0.5.5:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/html-loader/-/html-loader-0.5.5.tgz#6356dbeb0c49756d8ebd5ca327f16ff06ab5faea"
+  dependencies:
+    es6-templates "^0.2.3"
+    fastparse "^1.1.1"
+    html-minifier "^3.5.8"
+    loader-utils "^1.1.0"
+    object-assign "^4.1.1"
+
+html-minifier@^3.2.3, html-minifier@^3.5.8:
+  version "3.5.9"
+  resolved "https://registry.yarnpkg.com/html-minifier/-/html-minifier-3.5.9.tgz#74424014b872598d4bb0e20ac420926ec61024b6"
+  dependencies:
+    camel-case "3.0.x"
+    clean-css "4.1.x"
+    commander "2.14.x"
+    he "1.1.x"
+    ncname "1.0.x"
+    param-case "2.1.x"
+    relateurl "0.2.x"
+    uglify-js "3.3.x"
+
+html-webpack-plugin@webpack-contrib/html-webpack-plugin:
+  version "2.30.1"
+  resolved "https://codeload.github.com/webpack-contrib/html-webpack-plugin/tar.gz/1dee37e2696fd3990fe9be0a2945e465c0bb9a64"
+  dependencies:
+    bluebird "^3.4.7"
+    html-minifier "^3.2.3"
+    loader-utils "^0.2.16"
+    lodash "^4.17.3"
+    pretty-error "^2.0.2"
+    tapable "^1.0.0"
+    toposort "^1.0.0"
+
+htmlparser2@~3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.3.0.tgz#cc70d05a59f6542e43f0e685c982e14c924a9efe"
+  dependencies:
+    domelementtype "1"
+    domhandler "2.1"
+    domutils "1.1"
+    readable-stream "1.0"
+
 http-deceiver@^1.2.7:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/http-deceiver/-/http-deceiver-1.2.7.tgz#fa7168944ab9a519d337cb0bec7284dc3e723d87"
@@ -3044,6 +3402,10 @@ indent-string@^2.1.0:
   dependencies:
     repeating "^2.0.0"
 
+indent-string@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-3.2.0.tgz#4a5fd6d27cc332f37e5419a504dbb837105c9289"
+
 indexes-of@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/indexes-of/-/indexes-of-1.0.1.tgz#f30f716c8e2bd346c7b67d3df3915566a7c05607"
@@ -3067,11 +3429,30 @@ inherits@2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
 
-ini@~1.3.0:
+ini@^1.3.4, ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
 
-inquirer@^3.0.6:
+inquirer@^1.0.2:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-1.2.3.tgz#4dec6f32f37ef7bb0b2ed3f1d1a5c3f545074918"
+  dependencies:
+    ansi-escapes "^1.1.0"
+    chalk "^1.0.0"
+    cli-cursor "^1.0.1"
+    cli-width "^2.0.0"
+    external-editor "^1.1.0"
+    figures "^1.3.5"
+    lodash "^4.3.0"
+    mute-stream "0.0.6"
+    pinkie-promise "^2.0.0"
+    run-async "^2.2.0"
+    rx "^4.1.0"
+    string-width "^1.0.1"
+    strip-ansi "^3.0.0"
+    through "^2.3.6"
+
+inquirer@^3.0.6, inquirer@^3.2.0, inquirer@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
   dependencies:
@@ -3096,11 +3477,11 @@ internal-ip@1.2.0:
   dependencies:
     meow "^3.3.0"
 
-interpret@^1.0.0:
+interpret@^1.0.0, interpret@^1.0.4:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
 
-invariant@^2.2.2:
+invariant@^2.2.1, invariant@^2.2.2:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.3.tgz#1a827dfde7dcbd7c323f0ca826be8fa7c5e9d688"
   dependencies:
@@ -3268,6 +3649,10 @@ is-number@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-4.0.0.tgz#0026e37f5454d73e356dfe6564699867c6a7f0ff"
 
+is-object@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-object/-/is-object-1.0.1.tgz#8952688c5ec2ffd6b03ecc85e769e02903083470"
+
 is-odd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
@@ -3290,7 +3675,7 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
-is-plain-obj@^1.0.0:
+is-plain-obj@^1.0.0, is-plain-obj@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
 
@@ -3322,7 +3707,17 @@ is-resolvable@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
 
-is-stream@^1.0.1, is-stream@^1.1.0:
+is-retry-allowed@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"
+
+is-scoped@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-scoped/-/is-scoped-1.0.0.tgz#449ca98299e713038256289ecb2b540dc437cb30"
+  dependencies:
+    scoped-regex "^1.0.0"
+
+is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 
@@ -3344,7 +3739,7 @@ is-utf8@^0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
 
-is-windows@^1.0.0, is-windows@^1.0.2:
+is-windows@^1.0.0, is-windows@^1.0.1, is-windows@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
 
@@ -3385,6 +3780,21 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
+istextorbinary@^2.1.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/istextorbinary/-/istextorbinary-2.2.1.tgz#a5231a08ef6dd22b268d0895084cf8d58b5bec53"
+  dependencies:
+    binaryextensions "2"
+    editions "^1.3.3"
+    textextensions "2"
+
+isurl@^1.0.0-alpha5:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/isurl/-/isurl-1.0.0.tgz#b27f4f49f3cdaa3ea44a0a5b7f3462e6edc39d67"
+  dependencies:
+    has-to-string-tag-x "^1.2.0"
+    is-object "^1.0.1"
+
 jest-docblock@^21.0.0:
   version "21.2.0"
   resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-21.2.0.tgz#51529c3b30d5fd159da60c27ceedc195faf8d414"
@@ -3415,6 +3825,26 @@ jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
 
+jscodeshift@^0.4.0:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/jscodeshift/-/jscodeshift-0.4.1.tgz#da91a1c2eccfa03a3387a21d39948e251ced444a"
+  dependencies:
+    async "^1.5.0"
+    babel-plugin-transform-flow-strip-types "^6.8.0"
+    babel-preset-es2015 "^6.9.0"
+    babel-preset-stage-1 "^6.5.0"
+    babel-register "^6.9.0"
+    babylon "^6.17.3"
+    colors "^1.1.2"
+    flow-parser "^0.*"
+    lodash "^4.13.1"
+    micromatch "^2.3.7"
+    node-dir "0.1.8"
+    nomnom "^1.8.1"
+    recast "^0.12.5"
+    temp "^0.8.1"
+    write-file-atomic "^1.2.0"
+
 jsesc@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
@@ -3423,10 +3853,6 @@ jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
 
-json-loader@^0.5.4:
-  version "0.5.7"
-  resolved "https://registry.yarnpkg.com/json-loader/-/json-loader-0.5.7.tgz#dca14a70235ff82f0ac9a3abeb60d337a365185d"
-
 json-schema-traverse@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
@@ -3457,12 +3883,6 @@ json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
-jsonfile@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
-  optionalDependencies:
-    graceful-fs "^4.1.6"
-
 jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
@@ -3500,29 +3920,12 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
 
-last-call-webpack-plugin@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/last-call-webpack-plugin/-/last-call-webpack-plugin-2.1.2.tgz#ad80c6e310998294d2ed2180a68e9589e4768c44"
-  dependencies:
-    lodash "^4.17.4"
-    webpack-sources "^1.0.1"
-
-lazy-cache@^1.0.3:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
-
 lazy-cache@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-2.0.2.tgz#b9190a4f913354694840859f8a8f7084d8822264"
   dependencies:
     set-getter "^0.1.0"
 
-lazystream@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
-  dependencies:
-    readable-stream "^2.0.5"
-
 lcid@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
@@ -3536,6 +3939,53 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+listr-silent-renderer@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz#924b5a3757153770bf1a8e3fbf74b8bbf3f9242e"
+
+listr-update-renderer@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/listr-update-renderer/-/listr-update-renderer-0.2.0.tgz#ca80e1779b4e70266807e8eed1ad6abe398550f9"
+  dependencies:
+    chalk "^1.1.3"
+    cli-truncate "^0.2.1"
+    elegant-spinner "^1.0.1"
+    figures "^1.7.0"
+    indent-string "^3.0.0"
+    log-symbols "^1.0.2"
+    log-update "^1.0.2"
+    strip-ansi "^3.0.1"
+
+listr-verbose-renderer@^0.4.0:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/listr-verbose-renderer/-/listr-verbose-renderer-0.4.1.tgz#8206f4cf6d52ddc5827e5fd14989e0e965933a35"
+  dependencies:
+    chalk "^1.1.3"
+    cli-cursor "^1.0.2"
+    date-fns "^1.27.2"
+    figures "^1.7.0"
+
+listr@^0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/listr/-/listr-0.12.0.tgz#6bce2c0f5603fa49580ea17cd6a00cc0e5fa451a"
+  dependencies:
+    chalk "^1.1.3"
+    cli-truncate "^0.2.1"
+    figures "^1.7.0"
+    indent-string "^2.1.0"
+    is-promise "^2.1.0"
+    is-stream "^1.1.0"
+    listr-silent-renderer "^1.1.1"
+    listr-update-renderer "^0.2.0"
+    listr-verbose-renderer "^0.4.0"
+    log-symbols "^1.0.2"
+    log-update "^1.0.2"
+    ora "^0.2.3"
+    p-map "^1.1.1"
+    rxjs "^5.0.0-beta.11"
+    stream-to-observable "^0.1.0"
+    strip-ansi "^3.0.1"
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -3559,6 +4009,15 @@ loader-runner@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/loader-runner/-/loader-runner-2.3.0.tgz#f482aea82d543e07921700d5a46ef26fdac6b8a2"
 
+loader-utils@^0.2.16:
+  version "0.2.17"
+  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-0.2.17.tgz#f86e6374d43205a6e6c60e9196f17c0299bfb348"
+  dependencies:
+    big.js "^3.1.3"
+    emojis-list "^2.0.0"
+    json5 "^0.5.0"
+    object-assign "^4.0.1"
+
 loader-utils@^1.0.2, loader-utils@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-1.1.0.tgz#c98aef488bcceda2ffb5e2de646d6a754429f5cd"
@@ -3602,31 +4061,64 @@ lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-lodash@^4.14.0, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.3.0, lodash@^4.5.1, lodash@^4.8.0:
+lodash@^4.11.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.2, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
 
+log-symbols@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.1.0.tgz#f35fa60e278832b538dc4dddcbb478a45d3e3be6"
+  dependencies:
+    chalk "^2.0.1"
+
+log-symbols@^1.0.1, log-symbols@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
+  dependencies:
+    chalk "^1.0.0"
+
+log-symbols@^2.1.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
+  dependencies:
+    chalk "^2.0.1"
+
+log-update@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/log-update/-/log-update-1.0.2.tgz#19929f64c4093d2d2e7075a1dad8af59c296b8d1"
+  dependencies:
+    ansi-escapes "^1.0.0"
+    cli-cursor "^1.0.2"
+
 loglevel@^1.4.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/loglevel/-/loglevel-1.6.1.tgz#e0fc95133b6ef276cdc8887cdaf24aa6f156f8fa"
 
-longest@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
+loglevelnext@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/loglevelnext/-/loglevelnext-1.0.3.tgz#0f69277e73bbbf2cd61b94d82313216bf87ac66e"
 
-loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.3.1:
+loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
   dependencies:
     js-tokens "^3.0.0"
 
-loud-rejection@^1.0.0:
+loud-rejection@^1.0.0, loud-rejection@^1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
   dependencies:
     currently-unhandled "^0.4.1"
     signal-exit "^3.0.0"
 
+lower-case@^1.1.1:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
+
+lowercase-keys@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.0.tgz#4e3366b39e7f5457e35f1324bdf6f88d0bfc7306"
+
 lru-cache@^4.0.1, lru-cache@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.1.tgz#622e32e82488b49279114a4f9ecf45e7cd6bba55"
@@ -3638,7 +4130,7 @@ macaddress@^0.2.8:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/macaddress/-/macaddress-0.2.8.tgz#5904dc537c39ec6dbefeae902327135fa8511f12"
 
-make-dir@^1.0.0, make-dir@^1.1.0:
+make-dir@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.2.0.tgz#6d6a49eead4aae296c53bbf3a1a008bd6c89469b"
   dependencies:
@@ -3677,6 +4169,29 @@ media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
 
+mem-fs-editor@^3.0.0:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/mem-fs-editor/-/mem-fs-editor-3.0.2.tgz#dd0a6eaf2bb8a6b37740067aa549eb530105af9f"
+  dependencies:
+    commondir "^1.0.1"
+    deep-extend "^0.4.0"
+    ejs "^2.3.1"
+    glob "^7.0.3"
+    globby "^6.1.0"
+    mkdirp "^0.5.0"
+    multimatch "^2.0.0"
+    rimraf "^2.2.8"
+    through2 "^2.0.0"
+    vinyl "^2.0.1"
+
+mem-fs@^1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/mem-fs/-/mem-fs-1.1.3.tgz#b8ae8d2e3fcb6f5d3f9165c12d4551a065d989cc"
+  dependencies:
+    through2 "^2.0.0"
+    vinyl "^1.1.0"
+    vinyl-file "^2.0.0"
+
 mem@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
@@ -3713,7 +4228,7 @@ methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
 
-micromatch@^2.1.5, micromatch@^2.3.11:
+micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
   version "2.3.11"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
   dependencies:
@@ -3749,6 +4264,24 @@ micromatch@^3.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
+micromatch@^3.1.8:
+  version "3.1.9"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.9.tgz#15dc93175ae39e52e93087847096effc73efcf89"
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    braces "^2.3.1"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    extglob "^2.0.4"
+    fragment-cache "^0.2.1"
+    kind-of "^6.0.2"
+    nanomatch "^1.2.9"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
 miller-rabin@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/miller-rabin/-/miller-rabin-4.0.1.tgz#f080351c865b0dc562a8462966daa53543c78a4d"
@@ -3770,14 +4303,24 @@ mime@1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
 
-mime@^1.5.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+mime@^2.1.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-2.2.0.tgz#161e541965551d3b549fa1114391e3a3d55b923b"
 
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
 
+mimic-response@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.0.tgz#df3d3652a73fded6b9b0b24146e6fd052353458e"
+
+min-document@^2.19.0:
+  version "2.19.0"
+  resolved "https://registry.yarnpkg.com/min-document/-/min-document-2.19.0.tgz#7bd282e3f5842ed295bb748cdd9f1ffa2c824685"
+  dependencies:
+    dom-walk "^0.1.0"
+
 minijanus@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/minijanus/-/minijanus-0.4.0.tgz#4d08529da795886b1aab6714ee7c9ff122c8c802"
@@ -3800,14 +4343,14 @@ minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
-minimist@^1.1.0, minimist@^1.1.3, minimist@^1.2.0:
+minimist@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.1.0.tgz#99df657a52574c21c9057497df742790b2b4c0de"
+
+minimist@^1.1.3, minimist@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
-minimist@~0.0.1:
-  version "0.0.10"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
-
 mississippi@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-2.0.0.tgz#3442a508fafc28500486feea99409676e4ee5a6f"
@@ -3830,16 +4373,12 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
+mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
     minimist "0.0.8"
 
-moment@^2.11.2:
-  version "2.20.1"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.20.1.tgz#d6eb1a46cbcc14a2b2f9434112c1ff8907f313fd"
-
 move-concurrently@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/move-concurrently/-/move-concurrently-1.0.1.tgz#be2c005fda32e0b29af1f05d7c4b33214c701f92"
@@ -3874,18 +4413,23 @@ multicast-dns@^6.0.1:
     dns-packet "^1.3.1"
     thunky "^1.0.2"
 
+multimatch@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/multimatch/-/multimatch-2.1.0.tgz#9c7906a22fb4c02919e2f5f75161b4cdbd4b2a2b"
+  dependencies:
+    array-differ "^1.0.0"
+    array-union "^1.0.1"
+    arrify "^1.0.0"
+    minimatch "^3.0.0"
+
+mute-stream@0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.6.tgz#48962b19e169fd1dfc240b3f1e7317627bbc47db"
+
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
-mv@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/mv/-/mv-2.1.1.tgz#ae6ce0d6f6d5e0a4f7d893798d03c1ea9559b6a2"
-  dependencies:
-    mkdirp "~0.5.1"
-    ncp "~2.0.0"
-    rimraf "~2.4.0"
-
 naf-janus-adapter@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/naf-janus-adapter/-/naf-janus-adapter-0.3.0.tgz#fee55fe0f4724238da5f87fbb0e7f75cd522905e"
@@ -3918,14 +4462,20 @@ natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
 
-ncp@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/ncp/-/ncp-2.0.0.tgz#195a21d6c46e361d2fb1281ba38b91e9df7bdbb3"
+ncname@1.0.x:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ncname/-/ncname-1.0.0.tgz#5b57ad18b1ca092864ef62b0b1ed8194f383b71c"
+  dependencies:
+    xml-char-classes "^1.0.0"
 
 negotiator@0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
 
+neo-async@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.0.tgz#76b1c823130cca26acfbaccc8fbaf0a2fa33b18f"
+
 "networked-aframe@https://github.com/netpro2k/networked-aframe#feature/networked-templates-refactor":
   version "0.5.1"
   resolved "https://github.com/netpro2k/networked-aframe#d9ca0e40f816931efb2bbe167242e163170aa2f3"
@@ -3941,6 +4491,16 @@ nipplejs@^0.6.7:
   version "0.6.8"
   resolved "https://registry.yarnpkg.com/nipplejs/-/nipplejs-0.6.8.tgz#5400ff464be15a6199be33b5854a19989d03fe99"
 
+no-case@^2.2.0:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/no-case/-/no-case-2.3.2.tgz#60b813396be39b3f1288a4c1ed5d1e7d28b464ac"
+  dependencies:
+    lower-case "^1.1.1"
+
+node-dir@0.1.8:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/node-dir/-/node-dir-0.1.8.tgz#55fb8deb699070707fb67f91a460f0448294c77d"
+
 node-fetch@^1.0.1:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
@@ -3996,6 +4556,13 @@ node-pre-gyp@^0.6.39:
     tar "^2.2.1"
     tar-pack "^3.4.0"
 
+nomnom@^1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/nomnom/-/nomnom-1.8.1.tgz#2151f722472ba79e50a76fc125bb8c8f2e4dc2a7"
+  dependencies:
+    chalk "~0.4.0"
+    underscore "~1.6.0"
+
 nopt@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
@@ -4046,6 +4613,12 @@ npmlog@^4.0.2:
     gauge "~2.7.3"
     set-blocking "~2.0.0"
 
+nth-check@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.1.tgz#9929acdf628fc2c41098deab82ac580cf149aae4"
+  dependencies:
+    boolbase "~1.0.0"
+
 num2fraction@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/num2fraction/-/num2fraction-1.2.2.tgz#6f682b6a027a4e9ddfa4564cd2589d1d4e669ede"
@@ -4121,6 +4694,10 @@ once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0:
   dependencies:
     wrappy "1"
 
+onetime@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+
 onetime@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
@@ -4133,20 +4710,6 @@ opn@^5.1.0:
   dependencies:
     is-wsl "^1.1.0"
 
-optimist@^0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
-  dependencies:
-    minimist "~0.0.1"
-    wordwrap "~0.0.2"
-
-optimize-css-assets-webpack-plugin@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/optimize-css-assets-webpack-plugin/-/optimize-css-assets-webpack-plugin-3.2.0.tgz#09a40c4cefde1dd0142444a873c56aa29eb18e6f"
-  dependencies:
-    cssnano "^3.4.0"
-    last-call-webpack-plugin "^2.1.2"
-
 optionator@^0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
@@ -4162,6 +4725,15 @@ options@>=0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/options/-/options-0.0.6.tgz#ec22d312806bb53e731773e7cdaefcf1c643128f"
 
+ora@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/ora/-/ora-0.2.3.tgz#37527d220adcd53c39b73571d754156d5db657a4"
+  dependencies:
+    chalk "^1.1.1"
+    cli-cursor "^1.0.2"
+    cli-spinners "^0.1.2"
+    object-assign "^4.0.1"
+
 original@>=0.0.5:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/original/-/original-1.0.0.tgz#9147f93fa1696d04be61e01bd50baeaca656bd3b"
@@ -4176,12 +4748,6 @@ os-homedir@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
 
-os-locale@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
-  dependencies:
-    lcid "^1.0.0"
-
 os-locale@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
@@ -4190,7 +4756,11 @@ os-locale@^2.0.0:
     lcid "^1.0.0"
     mem "^1.1.0"
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
+os-shim@^0.1.2:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/os-shim/-/os-shim-0.1.3.tgz#6b62c3791cf7909ea35ed46e17658bb417cb3917"
+
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1, os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
@@ -4201,10 +4771,24 @@ osenv@^0.1.4:
     os-homedir "^1.0.0"
     os-tmpdir "^1.0.0"
 
+p-cancelable@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-0.3.0.tgz#b9e123800bcebb7ac13a479be195b507b98d30fa"
+
+p-each-series@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-each-series/-/p-each-series-1.0.0.tgz#930f3d12dd1f50e7434457a22cd6f04ac6ad7f71"
+  dependencies:
+    p-reduce "^1.0.0"
+
 p-finally@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
 
+p-lazy@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-lazy/-/p-lazy-1.0.0.tgz#ec53c802f2ee3ac28f166cc82d0b2b02de27a835"
+
 p-limit@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.2.0.tgz#0e92b6bedcb59f022c13d0f1949dc82d15909f1c"
@@ -4221,6 +4805,16 @@ p-map@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
 
+p-reduce@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-reduce/-/p-reduce-1.0.0.tgz#18c2b0dd936a4690a529f8231f58a0fdb6a47dfa"
+
+p-timeout@^1.1.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/p-timeout/-/p-timeout-1.2.1.tgz#5eb3b353b7fce99f101a1038880bb054ebbea386"
+  dependencies:
+    p-finally "^1.0.0"
+
 p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
@@ -4237,6 +4831,12 @@ parallel-transform@^1.1.0:
     inherits "^2.0.3"
     readable-stream "^2.1.5"
 
+param-case@2.1.x:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/param-case/-/param-case-2.1.1.tgz#df94fd8cf6531ecf75e6bef9a0858fbc72be2247"
+  dependencies:
+    no-case "^2.2.0"
+
 parse-asn1@^5.0.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.0.tgz#37c4f9b7ed3ab65c74817b5f2480937fbf97c712"
@@ -4262,6 +4862,10 @@ parse-json@^2.2.0:
   dependencies:
     error-ex "^1.2.0"
 
+parse-passwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
+
 parsejson@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/parsejson/-/parsejson-0.0.3.tgz#ab7e3759f209ece99437973f7d0f1f64ae0e64ab"
@@ -4326,6 +4930,12 @@ path-to-regexp@0.1.7:
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
 
+path-to-regexp@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-1.7.0.tgz#59fde0f435badacba103a84e9d3bc64e96b9937d"
+  dependencies:
+    isarray "0.0.1"
+
 path-type@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
@@ -4354,7 +4964,7 @@ performance-now@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
 
-pify@^2.0.0:
+pify@^2.0.0, pify@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
 
@@ -4644,7 +5254,7 @@ prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
 
-prepend-http@^1.0.0:
+prepend-http@^1.0.0, prepend-http@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
 
@@ -4652,14 +5262,29 @@ preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
-prettier@^1.7.0:
+prettier@^1.5.3, prettier@^1.7.0:
   version "1.10.2"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.10.2.tgz#1af8356d1842276a99a5b5529c82dd9e9ad3cc93"
 
-private@^0.1.6, private@^0.1.7:
+pretty-bytes@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-4.0.2.tgz#b2bf82e7350d65c6c33aa95aaa5a4f6327f61cd9"
+
+pretty-error@^2.0.2:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/pretty-error/-/pretty-error-2.1.1.tgz#5f4f87c8f91e5ae3f3ba87ab4cf5e03b1a17f1a3"
+  dependencies:
+    renderkid "^2.0.1"
+    utila "~0.4"
+
+private@^0.1.6, private@^0.1.7, private@~0.1.5:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
 
+process-nextick-args@^1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
+
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -4668,6 +5293,10 @@ process@^0.11.10:
   version "0.11.10"
   resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
 
+process@~0.5.1:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/process/-/process-0.5.2.tgz#1638d8a8e34c2f440a91db95ab9aeb677fc185cf"
+
 progress@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.0.tgz#8a1be366bf8fc23db2bd23f10c6fe920b4389d1f"
@@ -4682,9 +5311,9 @@ promise@^7.1.1:
   dependencies:
     asap "~2.0.3"
 
-prop-types@^15.6.0:
-  version "15.6.0"
-  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.0.tgz#ceaf083022fc46b4a35f69e13ef75aed0d639856"
+prop-types@^15.5.4, prop-types@^15.6.0:
+  version "15.6.1"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.1.tgz#36644453564255ddda391191fb3a125cbdf654ca"
   dependencies:
     fbjs "^0.8.16"
     loose-envify "^1.3.1"
@@ -4836,6 +5465,29 @@ react-dom@^16.1.1:
     object-assign "^4.1.1"
     prop-types "^15.6.0"
 
+react-router-dom@^4.2.2:
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/react-router-dom/-/react-router-dom-4.2.2.tgz#c8a81df3adc58bba8a76782e946cbd4eae649b8d"
+  dependencies:
+    history "^4.7.2"
+    invariant "^2.2.2"
+    loose-envify "^1.3.1"
+    prop-types "^15.5.4"
+    react-router "^4.2.0"
+    warning "^3.0.0"
+
+react-router@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/react-router/-/react-router-4.2.0.tgz#61f7b3e3770daeb24062dae3eedef1b054155986"
+  dependencies:
+    history "^4.7.2"
+    hoist-non-react-statics "^2.3.0"
+    invariant "^2.2.2"
+    loose-envify "^1.3.1"
+    path-to-regexp "^1.7.0"
+    prop-types "^15.5.4"
+    warning "^3.0.0"
+
 react@^16.1.1:
   version "16.2.0"
   resolved "https://registry.yarnpkg.com/react/-/react-16.2.0.tgz#a31bd2dab89bff65d42134fa187f24d054c273ba"
@@ -4845,6 +5497,13 @@ react@^16.1.1:
     object-assign "^4.1.1"
     prop-types "^15.6.0"
 
+read-chunk@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/read-chunk/-/read-chunk-2.1.0.tgz#6a04c0928005ed9d42e1a6ac5600e19cbc7ff655"
+  dependencies:
+    pify "^3.0.0"
+    safe-buffer "^5.1.1"
+
 read-pkg-up@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
@@ -4875,7 +5534,7 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
-"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.9, readable-stream@^2.3.3:
+"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.4, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.9, readable-stream@^2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.4.tgz#c946c3f47fa7d8eabc0b6150f4a12f69a4574071"
   dependencies:
@@ -4887,6 +5546,15 @@ read-pkg@^2.0.0:
     string_decoder "~1.0.3"
     util-deprecate "~1.0.1"
 
+readable-stream@1.0:
+  version "1.0.34"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
 readdirp@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.1.0.tgz#4ed0ad060df3073300c48440373f72d1cc642d78"
@@ -4896,6 +5564,40 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
+recast@^0.12.5:
+  version "0.12.9"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.12.9.tgz#e8e52bdb9691af462ccbd7c15d5a5113647a15f1"
+  dependencies:
+    ast-types "0.10.1"
+    core-js "^2.4.1"
+    esprima "~4.0.0"
+    private "~0.1.5"
+    source-map "~0.6.1"
+
+recast@^0.13.0:
+  version "0.13.2"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.13.2.tgz#919e7e856d5154f13284142ed1797753c6756137"
+  dependencies:
+    ast-types "0.10.2"
+    esprima "~4.0.0"
+    private "~0.1.5"
+    source-map "~0.6.1"
+
+recast@~0.11.12:
+  version "0.11.23"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.11.23.tgz#451fd3004ab1e4df9b4e4b66376b2a21912462d3"
+  dependencies:
+    ast-types "0.9.6"
+    esprima "~3.1.0"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
+rechoir@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  dependencies:
+    resolve "^1.1.6"
+
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
@@ -4972,10 +5674,24 @@ regjsparser@^0.1.4:
   dependencies:
     jsesc "~0.5.0"
 
+relateurl@0.2.x:
+  version "0.2.7"
+  resolved "https://registry.yarnpkg.com/relateurl/-/relateurl-0.2.7.tgz#54dbf377e51440aca90a4cd274600d3ff2d888a9"
+
 remove-trailing-separator@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz#c24bce2a283adad5bc3f58e0d48249b92379d8ef"
 
+renderkid@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/renderkid/-/renderkid-2.0.1.tgz#898cabfc8bede4b7b91135a3ffd323e58c0db319"
+  dependencies:
+    css-select "^1.1.0"
+    dom-converter "~0.1"
+    htmlparser2 "~3.3.0"
+    strip-ansi "^3.0.0"
+    utila "~0.3"
+
 repeat-element@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
@@ -4990,6 +5706,14 @@ repeating@^2.0.0:
   dependencies:
     is-finite "^1.0.0"
 
+replace-ext@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-0.0.1.tgz#29bbd92078a739f0bcce2b4ee41e837953522924"
+
+replace-ext@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/replace-ext/-/replace-ext-1.0.0.tgz#de63128373fcbf7c3ccfa4de5a480c45a67958eb"
+
 request@2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
@@ -5042,6 +5766,13 @@ resolve-cwd@^2.0.0:
   dependencies:
     resolve-from "^3.0.0"
 
+resolve-dir@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/resolve-dir/-/resolve-dir-1.0.1.tgz#79a40644c362be82f26effe739c9bb5382046f43"
+  dependencies:
+    expand-tilde "^2.0.0"
+    global-modules "^1.0.0"
+
 resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
@@ -5050,16 +5781,27 @@ resolve-from@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
 
+resolve-pathname@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/resolve-pathname/-/resolve-pathname-2.2.0.tgz#7e9ae21ed815fd63ab189adeee64dc831eefa879"
+
 resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
 
-resolve@^1.1.7:
+resolve@^1.1.6:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.5.0.tgz#1f09acce796c9a762579f31b2c1cc4c3cddf9f36"
   dependencies:
     path-parse "^1.0.5"
 
+restore-cursor@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
+  dependencies:
+    exit-hook "^1.0.0"
+    onetime "^1.0.0"
+
 restore-cursor@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
@@ -5071,23 +5813,15 @@ ret@~0.1.10:
   version "0.1.15"
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
 
-right-align@^0.1.1:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
-  dependencies:
-    align-text "^0.1.1"
-
-rimraf@2, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
+rimraf@2, rimraf@^2.2.0, rimraf@^2.2.8, rimraf@^2.5.1, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
   dependencies:
     glob "^7.0.5"
 
-rimraf@~2.4.0:
-  version "2.4.5"
-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.4.5.tgz#ee710ce5d93a8fdb856fb5ea8ff0e2d75934b2da"
-  dependencies:
-    glob "^6.0.1"
+rimraf@~2.2.6:
+  version "2.2.8"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.2.8.tgz#e439be2aaee327321952730f99a8929e4fc50582"
 
 ripemd160@^2.0.0, ripemd160@^2.0.1:
   version "2.0.1"
@@ -5102,7 +5836,7 @@ rtcpeerconnection-shim@^1.1.13:
   dependencies:
     sdp "^2.6.0"
 
-run-async@^2.2.0:
+run-async@^2.0.0, run-async@^2.2.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
   dependencies:
@@ -5124,6 +5858,16 @@ rx-lite@*, rx-lite@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
 
+rx@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/rx/-/rx-4.1.0.tgz#a5f13ff79ef3b740fe30aa803fb09f98805d4782"
+
+rxjs@^5.0.0-beta.11:
+  version "5.5.6"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-5.5.6.tgz#e31fb96d6fd2ff1fd84bcea8ae9c02d007179c02"
+  dependencies:
+    symbol-observable "1.0.1"
+
 safe-buffer@5.1.1, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
@@ -5138,19 +5882,17 @@ sax@~1.2.1:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
 
-schema-utils@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.3.0.tgz#f5877222ce3e931edae039f17eb3716e7137f8cf"
-  dependencies:
-    ajv "^5.0.0"
-
-schema-utils@^0.4.2, schema-utils@^0.4.5:
+schema-utils@^0.4.2, schema-utils@^0.4.3, schema-utils@^0.4.5:
   version "0.4.5"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.5.tgz#21836f0608aac17b78f9e3e24daff14a5ca13a3e"
   dependencies:
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
 
+scoped-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/scoped-regex/-/scoped-regex-1.0.0.tgz#a346bb1acd4207ae70bd7c0c7ca9e566b6baddb8"
+
 sdp@^2.3.0, sdp@^2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/sdp/-/sdp-2.6.0.tgz#b5260be98fa55289e925a7badcb46655d868215b"
@@ -5159,7 +5901,7 @@ select-hose@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
 
-selfsigned@^1.9.1:
+selfsigned@^1.10.2, selfsigned@^1.9.1:
   version "1.10.2"
   resolved "https://registry.yarnpkg.com/selfsigned/-/selfsigned-1.10.2.tgz#b4449580d99929b65b10a48389301a6592088758"
   dependencies:
@@ -5300,14 +6042,13 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
-shell-quote@^1.6.1:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/shell-quote/-/shell-quote-1.6.1.tgz#f4781949cce402697127430ea3b3c5476f481767"
+shelljs@^0.7.0:
+  version "0.7.8"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.8.tgz#decbcf874b0d1e5fb72e14b164a9683048e9acb3"
   dependencies:
-    array-filter "~0.0.0"
-    array-map "~0.0.0"
-    array-reduce "~0.0.0"
-    jsonify "~0.0.0"
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
 
 signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
@@ -5317,12 +6058,20 @@ slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
 
+slice-ansi@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
+
 slice-ansi@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
   dependencies:
     is-fullwidth-code-point "^2.0.0"
 
+slide@^1.1.5:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/slide/-/slide-1.1.6.tgz#56eb027d65b4d2dce6cb2e2d32c4d4afc9e1d707"
+
 snapdragon-node@^2.0.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
@@ -5448,13 +6197,7 @@ source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
 
-source-map@^0.4.4:
-  version "0.4.4"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
-  dependencies:
-    amdefine ">=0.0.4"
-
-source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.1, source-map@~0.5.3:
+source-map@0.5.x, source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.0, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
@@ -5462,6 +6205,13 @@ source-map@^0.6.1, source-map@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
 
+spawn-sync@^1.0.15:
+  version "1.0.15"
+  resolved "https://registry.yarnpkg.com/spawn-sync/-/spawn-sync-1.0.15.tgz#b00799557eb7fb0c8376c29d44e8a1ea67e57476"
+  dependencies:
+    concat-stream "^1.4.7"
+    os-shim "^0.1.2"
+
 spdx-correct@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-1.0.2.tgz#4b3073d933ff51f3912f03ac5519498a4150db40"
@@ -5572,10 +6322,18 @@ stream-shift@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.0.tgz#d5c752825e5367e786f78e18e445ea223a155952"
 
+stream-to-observable@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/stream-to-observable/-/stream-to-observable-0.1.0.tgz#45bf1d9f2d7dc09bed81f1c307c430e68b84cffe"
+
 strict-uri-encode@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
 
+string-template@~0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/string-template/-/string-template-0.2.1.tgz#42932e598a352d01fc22ec3367d9d84eec6c9add"
+
 string-width@^1.0.1, string-width@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
@@ -5597,6 +6355,10 @@ string_decoder@^1.0.0, string_decoder@~1.0.3:
   dependencies:
     safe-buffer "~5.1.0"
 
+string_decoder@~0.10.x:
+  version "0.10.31"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
+
 stringstream@~0.0.4:
   version "0.0.5"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
@@ -5613,6 +6375,17 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
+strip-ansi@~0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-0.1.1.tgz#39e8a98d044d150660abe4a6808acf70bb7bc991"
+
+strip-bom-stream@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom-stream/-/strip-bom-stream-2.0.0.tgz#f87db5ef2613f6968aa545abfe1ec728b6a829ca"
+  dependencies:
+    first-chunk-stream "^2.0.0"
+    strip-bom "^2.0.0"
+
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -5637,18 +6410,12 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
-style-loader@^0.19.0:
-  version "0.19.1"
-  resolved "https://registry.yarnpkg.com/style-loader/-/style-loader-0.19.1.tgz#591ffc80bcefe268b77c5d9ebc0505d772619f85"
+style-loader@^0.20.2:
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/style-loader/-/style-loader-0.20.2.tgz#851b373c187890331776e9cde359eea9c95ecd00"
   dependencies:
-    loader-utils "^1.0.2"
-    schema-utils "^0.3.0"
-
-subarg@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/subarg/-/subarg-1.0.0.tgz#f62cf17581e996b48fc965699f54c06ae268b8d2"
-  dependencies:
-    minimist "^1.1.0"
+    loader-utils "^1.1.0"
+    schema-utils "^0.4.3"
 
 supports-color@^2.0.0:
   version "2.0.0"
@@ -5660,7 +6427,7 @@ supports-color@^3.2.3:
   dependencies:
     has-flag "^1.0.0"
 
-supports-color@^4.2.1:
+supports-color@^4.4.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
   dependencies:
@@ -5684,12 +6451,16 @@ svgo@^0.7.0:
     sax "~1.2.1"
     whet.extend "~0.9.9"
 
+symbol-observable@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.0.1.tgz#8340fc4702c3122df5d22288f88283f513d3fdd4"
+
 table@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.3.tgz#00b5e2b602f1794b9acaf9ca908a76386a7813bc"
   dependencies:
-    ajv "^5.2.3"
-    ajv-keywords "^2.1.0"
+    ajv "^6.0.1"
+    ajv-keywords "^3.0.0"
     chalk "^2.1.0"
     lodash "^4.17.4"
     slice-ansi "1.0.0"
@@ -5699,6 +6470,10 @@ tapable@^0.2.7:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.2.8.tgz#99372a5c999bf2df160afc0d74bed4f47948cd22"
 
+tapable@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.0.0.tgz#cbb639d9002eed9c6b5975eb20598d7936f1f9f2"
+
 tar-pack@^3.4.0:
   version "3.4.1"
   resolved "https://registry.yarnpkg.com/tar-pack/-/tar-pack-3.4.1.tgz#e1dbc03a9b9d3ba07e896ad027317eb679a10a1f"
@@ -5712,15 +6487,6 @@ tar-pack@^3.4.0:
     tar "^2.2.1"
     uid-number "^0.0.6"
 
-tar-stream@^1.5.0:
-  version "1.5.5"
-  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.5.5.tgz#5cad84779f45c83b1f2508d96b09d88c7218af55"
-  dependencies:
-    bl "^1.0.0"
-    end-of-stream "^1.0.0"
-    readable-stream "^2.0.0"
-    xtend "^4.0.0"
-
 tar@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
@@ -5729,10 +6495,21 @@ tar@^2.2.1:
     fstream "^1.0.2"
     inherits "2"
 
-text-table@~0.2.0:
+temp@^0.8.1:
+  version "0.8.3"
+  resolved "https://registry.yarnpkg.com/temp/-/temp-0.8.3.tgz#e0c6bc4d26b903124410e4fed81103014dfc1f59"
+  dependencies:
+    os-tmpdir "^1.0.0"
+    rimraf "~2.2.6"
+
+text-table@^0.2.0, text-table@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
 
+textextensions@2:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/textextensions/-/textextensions-2.2.0.tgz#38ac676151285b658654581987a0ce1a4490d286"
+
 three-pathfinding@^0.2.2:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/three-pathfinding/-/three-pathfinding-0.2.3.tgz#469bb26fb6b331f536c9ec88fde78e9c9219f637"
@@ -5741,14 +6518,14 @@ three-to-cannon@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/three-to-cannon/-/three-to-cannon-1.2.0.tgz#92b9a756a270851aa98c3058c51ef15891507c01"
 
-through2@^2.0.0:
+through2@^2.0.0, through2@^2.0.1:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/through2/-/through2-2.0.3.tgz#0004569b37c7c74ba39c43f3ced78d1ad94140be"
   dependencies:
     readable-stream "^2.1.5"
     xtend "~4.0.1"
 
-through@^2.3.6:
+through@^2.3.6, through@~2.3.6:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
@@ -5756,9 +6533,9 @@ thunky@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/thunky/-/thunky-1.0.2.tgz#a862e018e3fb1ea2ec3fce5d55605cf57f247371"
 
-time-stamp@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.0.0.tgz#95c6a44530e15ba8d6f4a3ecb8c3a3fac46da357"
+timed-out@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
 
 timers-browserify@^2.0.4:
   version "2.0.6"
@@ -5766,6 +6543,12 @@ timers-browserify@^2.0.4:
   dependencies:
     setimmediate "^1.0.4"
 
+tmp@^0.0.29:
+  version "0.0.29"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.29.tgz#f25125ff0dd9da3ccb0c2dd371ee1288bb9128c0"
+  dependencies:
+    os-tmpdir "~1.0.1"
+
 tmp@^0.0.33:
   version "0.0.33"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
@@ -5805,9 +6588,13 @@ to-regex@^3.0.1:
     extend-shallow "^2.0.1"
     regex-not "^1.0.0"
 
+toposort@^1.0.0:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/toposort/-/toposort-1.0.6.tgz#c31748e55d210effc00fdcdc7d6e68d7d7bb9cec"
+
 tough-cookie@~2.3.0:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.3.tgz#0b618a5565b6dea90bf3425d04d55edc475a7561"
+  version "2.3.4"
+  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
   dependencies:
     punycode "^1.4.1"
 
@@ -5861,30 +6648,16 @@ uglify-es@^3.3.4:
     commander "~2.14.1"
     source-map "~0.6.1"
 
-uglify-js@^2.6, uglify-js@^2.8.29:
-  version "2.8.29"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.29.tgz#29c5733148057bb4e1f75df35b7a9cb72e6a59dd"
-  dependencies:
-    source-map "~0.5.1"
-    yargs "~3.10.0"
-  optionalDependencies:
-    uglify-to-browserify "~1.0.0"
-
-uglify-to-browserify@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
-
-uglifyjs-webpack-plugin@^0.4.6:
-  version "0.4.6"
-  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-0.4.6.tgz#b951f4abb6bd617e66f63eb891498e391763e309"
+uglify-js@3.3.x:
+  version "3.3.12"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.3.12.tgz#efd87c16a1f4c674a8a5ede571001ef634dcc883"
   dependencies:
-    source-map "^0.5.6"
-    uglify-js "^2.8.29"
-    webpack-sources "^1.0.1"
+    commander "~2.14.1"
+    source-map "~0.6.1"
 
-uglifyjs-webpack-plugin@^1.1.2:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.0.tgz#f706fa4c655000a086b4a97c7d835ed0f6e9b0ef"
+uglifyjs-webpack-plugin@^1.1.1, uglifyjs-webpack-plugin@^1.2.2:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.2.tgz#e7516d4367afdb715c3847841eb46f94c45ca2b9"
   dependencies:
     cacache "^10.0.1"
     find-cache-dir "^1.0.0"
@@ -5907,6 +6680,10 @@ underscore@1.5.x:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.5.2.tgz#1335c5e4f5e6d33bbb4b006ba8c86a00f556de08"
 
+underscore@~1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.6.0.tgz#8b38b10cacdef63337b8b24e4ff86d45aea529a8"
+
 union-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
@@ -5942,10 +6719,6 @@ unique-slug@^2.0.0:
   dependencies:
     imurmurhash "^0.1.4"
 
-universalify@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.1.tgz#fa71badd4437af4c148841e3b3b165f9e9e590b7"
-
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
@@ -5957,6 +6730,16 @@ unset-value@^1.0.0:
     has-value "^0.3.1"
     isobject "^3.0.0"
 
+untildify@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/untildify/-/untildify-2.1.0.tgz#17eb2807987f76952e9c0485fc311d06a826a2e0"
+  dependencies:
+    os-homedir "^1.0.0"
+
+untildify@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/untildify/-/untildify-3.0.2.tgz#7f1f302055b3fea0f3e81dc78eb36766cb65e3f1"
+
 upath@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/upath/-/upath-1.0.2.tgz#80aaae5395abc5fd402933ae2f58694f0860204c"
@@ -5966,10 +6749,24 @@ upath@^1.0.0:
     lodash.isstring "^4.0.1"
     lodash.startswith "^4.2.1"
 
+upper-case@^1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/upper-case/-/upper-case-1.1.3.tgz#f6b4501c2ec4cdd26ba78be7222961de77621598"
+
 urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
 
+url-join@^2.0.2:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/url-join/-/url-join-2.0.5.tgz#5af22f18c052a000a48d7b82c5e9c2e2feeda728"
+
+url-parse-lax@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/url-parse-lax/-/url-parse-lax-1.0.0.tgz#7af8f303645e9bd79a272e7a14ac68bc0609da73"
+  dependencies:
+    prepend-http "^1.0.1"
+
 url-parse@1.0.x:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.0.5.tgz#0854860422afdcfefeb6c965c662d4800169927b"
@@ -5984,6 +6781,10 @@ url-parse@^1.1.8:
     querystringify "~1.0.0"
     requires-port "~1.0.0"
 
+url-to-options@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/url-to-options/-/url-to-options-1.0.1.tgz#1505a03a289a48cbd7a434efbaeec5055f5633a9"
+
 url@^0.11.0:
   version "0.11.0"
   resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
@@ -5991,6 +6792,10 @@ url@^0.11.0:
     punycode "1.3.2"
     querystring "0.2.0"
 
+urlgrey@0.4.4:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/urlgrey/-/urlgrey-0.4.4.tgz#892fe95960805e85519f1cd4389f2cb4cbb7652f"
+
 use@^2.0.0:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/use/-/use-2.0.2.tgz#ae28a0d72f93bf22422a18a2e379993112dec8e8"
@@ -6009,14 +6814,26 @@ util@0.10.3, util@^0.10.3:
   dependencies:
     inherits "2.0.1"
 
+utila@~0.3:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/utila/-/utila-0.3.3.tgz#d7e8e7d7e309107092b05f8d9688824d633a4226"
+
+utila@~0.4:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/utila/-/utila-0.4.0.tgz#8a16a05d445657a3aea5eecc5b12a4fa5379772c"
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
 
-uuid@^3.0.0, uuid@^3.0.1:
+uuid@^3.0.0, uuid@^3.0.1, uuid@^3.1.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
 
+v8-compile-cache@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/v8-compile-cache/-/v8-compile-cache-1.1.2.tgz#8d32e4f16974654657e676e0e467a348e89b0dc4"
+
 validate-npm-package-license@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.1.tgz#2804babe712ad3379459acfbe24746ab2c303fbc"
@@ -6024,6 +6841,10 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "~1.0.0"
     spdx-expression-parse "~1.0.0"
 
+value-equal@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/value-equal/-/value-equal-0.4.0.tgz#c5bdd2f54ee093c04839d71ce2e4758a6890abc7"
+
 vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
@@ -6040,12 +6861,48 @@ verror@1.10.0:
     core-util-is "1.0.2"
     extsprintf "^1.2.0"
 
+vinyl-file@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/vinyl-file/-/vinyl-file-2.0.0.tgz#a7ebf5ffbefda1b7d18d140fcb07b223efb6751a"
+  dependencies:
+    graceful-fs "^4.1.2"
+    pify "^2.3.0"
+    pinkie-promise "^2.0.0"
+    strip-bom "^2.0.0"
+    strip-bom-stream "^2.0.0"
+    vinyl "^1.1.0"
+
+vinyl@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-1.2.0.tgz#5c88036cf565e5df05558bfc911f8656df218884"
+  dependencies:
+    clone "^1.0.0"
+    clone-stats "^0.0.1"
+    replace-ext "0.0.1"
+
+vinyl@^2.0.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-2.1.0.tgz#021f9c2cf951d6b939943c89eb5ee5add4fd924c"
+  dependencies:
+    clone "^2.1.1"
+    clone-buffer "^1.0.0"
+    clone-stats "^1.0.0"
+    cloneable-readable "^1.0.0"
+    remove-trailing-separator "^1.0.1"
+    replace-ext "^1.0.0"
+
 vm-browserify@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
   dependencies:
     indexof "0.0.1"
 
+warning@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/warning/-/warning-3.0.0.tgz#32e5377cb572de4ab04753bdf8821c01ed605b7c"
+  dependencies:
+    loose-envify "^1.0.0"
+
 watchpack@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.4.0.tgz#4a1472bcbb952bd0a9bb4036801f954dfb39faac"
@@ -6060,19 +6917,61 @@ wbuf@^1.1.0, wbuf@^1.7.2:
   dependencies:
     minimalistic-assert "^1.0.0"
 
-webpack-dev-middleware@1.12.2:
-  version "1.12.2"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz#f8fc1120ce3b4fc5680ceecb43d777966b21105e"
+webpack-addons@^1.1.5:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/webpack-addons/-/webpack-addons-1.1.5.tgz#2b178dfe873fb6e75e40a819fa5c26e4a9bc837a"
+  dependencies:
+    jscodeshift "^0.4.0"
+
+webpack-cli@^2.0.9:
+  version "2.0.9"
+  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-2.0.9.tgz#0310fa04f4cad69714560cc0e4da5c7682eb4d9b"
+  dependencies:
+    chalk "^2.0.1"
+    codecov "^3.0.0"
+    cross-spawn "^5.1.0"
+    diff "^3.3.0"
+    enhanced-resolve "^3.4.1"
+    glob-all "^3.1.0"
+    global "^4.3.2"
+    global-modules "^1.0.0"
+    got "^7.1.0"
+    inquirer "^3.2.0"
+    interpret "^1.0.4"
+    jscodeshift "^0.4.0"
+    listr "^0.12.0"
+    loader-utils "^1.1.0"
+    lodash "^4.17.4"
+    log-symbols "2.1.0"
+    mkdirp "^0.5.1"
+    p-each-series "^1.0.0"
+    p-lazy "^1.0.0"
+    prettier "^1.5.3"
+    recast "^0.13.0"
+    resolve-cwd "^2.0.0"
+    supports-color "^4.4.0"
+    uglifyjs-webpack-plugin "^1.2.2"
+    v8-compile-cache "^1.1.0"
+    webpack-addons "^1.1.5"
+    webpack-fork-yeoman-generator "^1.1.1"
+    yargs "9.0.1"
+    yeoman-environment "^2.0.0"
+
+webpack-dev-middleware@2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-2.0.6.tgz#a51692801e8310844ef3e3790e1eacfe52326fd4"
   dependencies:
+    loud-rejection "^1.6.0"
     memory-fs "~0.4.1"
-    mime "^1.5.0"
+    mime "^2.1.0"
     path-is-absolute "^1.0.0"
     range-parser "^1.0.3"
-    time-stamp "^2.0.0"
+    url-join "^2.0.2"
+    webpack-log "^1.0.1"
 
-webpack-dev-server@^2.9.3:
-  version "2.11.1"
-  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-2.11.1.tgz#6f9358a002db8403f016e336816f4485384e5ec0"
+webpack-dev-server@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.0.0.tgz#0ca2d293dc7a7b1a94fc5fd62cfca2a9fa61bcf7"
   dependencies:
     ansi-html "0.0.7"
     array-includes "^3.0.3"
@@ -6099,14 +6998,47 @@ webpack-dev-server@^2.9.3:
     spdy "^3.4.1"
     strip-ansi "^3.0.0"
     supports-color "^5.1.0"
-    webpack-dev-middleware "1.12.2"
-    yargs "6.6.0"
+    webpack-dev-middleware "2.0.6"
+    yargs "9.0.1"
 
-webpack-merge@^4.1.0:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-4.1.1.tgz#f1197a0a973e69c6fbeeb6d658219aa8c0c13555"
+webpack-fork-yeoman-generator@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/webpack-fork-yeoman-generator/-/webpack-fork-yeoman-generator-1.1.1.tgz#c92b454aba7df9ea392669188aa0330964acf76f"
   dependencies:
-    lodash "^4.17.4"
+    async "^2.0.0"
+    chalk "^1.0.0"
+    cli-table "^0.3.1"
+    cross-spawn "^5.0.1"
+    dargs "^5.1.0"
+    dateformat "^2.0.0"
+    debug "^2.1.0"
+    detect-conflict "^1.0.0"
+    error "^7.0.2"
+    find-up "^2.1.0"
+    github-username "^4.0.0"
+    istextorbinary "^2.1.0"
+    lodash "^4.11.1"
+    mem-fs-editor "^3.0.0"
+    minimist "^1.2.0"
+    mkdirp "^0.5.0"
+    pretty-bytes "^4.0.2"
+    read-chunk "^2.0.0"
+    read-pkg-up "^2.0.0"
+    rimraf "^2.2.0"
+    run-async "^2.0.0"
+    shelljs "^0.7.0"
+    text-table "^0.2.0"
+    through2 "^2.0.0"
+    yeoman-environment "^1.1.0"
+
+webpack-log@^1.0.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/webpack-log/-/webpack-log-1.1.2.tgz#cdc76016537eed24708dc6aa3d1e52189efee107"
+  dependencies:
+    chalk "^2.1.0"
+    log-symbols "^2.1.0"
+    loglevelnext "^1.0.1"
+    uuid "^3.1.0"
 
 webpack-sources@^1.0.1:
   version "1.0.1"
@@ -6122,32 +7054,29 @@ webpack-sources@^1.1.0:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^3.6.0:
-  version "3.11.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-3.11.0.tgz#77da451b1d7b4b117adaf41a1a93b5742f24d894"
+webpack@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.0.1.tgz#768d708beeca4c5f77f6c2d38a240fb6ff50ba5d"
   dependencies:
     acorn "^5.0.0"
-    acorn-dynamic-import "^2.0.0"
+    acorn-dynamic-import "^3.0.0"
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
-    async "^2.1.2"
-    enhanced-resolve "^3.4.0"
-    escope "^3.6.0"
-    interpret "^1.0.0"
-    json-loader "^0.5.4"
-    json5 "^0.5.1"
+    chrome-trace-event "^0.1.1"
+    enhanced-resolve "^4.0.0"
+    eslint-scope "^3.7.1"
     loader-runner "^2.3.0"
     loader-utils "^1.1.0"
     memory-fs "~0.4.1"
+    micromatch "^3.1.8"
     mkdirp "~0.5.0"
+    neo-async "^2.5.0"
     node-libs-browser "^2.0.0"
-    source-map "^0.5.3"
-    supports-color "^4.2.1"
-    tapable "^0.2.7"
-    uglifyjs-webpack-plugin "^0.4.6"
+    schema-utils "^0.4.2"
+    tapable "^1.0.0"
+    uglifyjs-webpack-plugin "^1.1.1"
     watchpack "^1.4.0"
     webpack-sources "^1.0.1"
-    yargs "^8.0.2"
 
 webrtc-adapter@^6.0.2:
   version "6.1.1"
@@ -6175,15 +7104,11 @@ whet.extend@~0.9.9:
   version "0.9.9"
   resolved "https://registry.yarnpkg.com/whet.extend/-/whet.extend-0.9.9.tgz#f877d5bf648c97e5aa542fadc16d6a259b9c11a1"
 
-which-module@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
-
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
 
-which@^1.2.9:
+which@^1.2.14, which@^1.2.9:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
   dependencies:
@@ -6195,18 +7120,6 @@ wide-align@^1.1.0:
   dependencies:
     string-width "^1.0.2"
 
-window-size@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
-
-wordwrap@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
-
-wordwrap@~0.0.2:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-
 wordwrap@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
@@ -6229,16 +7142,13 @@ wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
 
-write-file-webpack-plugin@^4.2.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/write-file-webpack-plugin/-/write-file-webpack-plugin-4.2.0.tgz#7bd18547eaa0ea0b23992fb1e0322e5431d339ef"
+write-file-atomic@^1.2.0:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-1.3.4.tgz#f807a4f0b1d9e913ae7a48112e6cc3af1991b45f"
   dependencies:
-    chalk "^1.1.1"
-    debug "^2.6.8"
-    filesize "^3.2.1"
-    lodash "^4.5.1"
-    mkdirp "^0.5.1"
-    moment "^2.11.2"
+    graceful-fs "^4.1.11"
+    imurmurhash "^0.1.4"
+    slide "^1.1.5"
 
 write@^0.2.1:
   version "0.2.1"
@@ -6257,11 +7167,15 @@ wtf-8@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wtf-8/-/wtf-8-1.0.0.tgz#392d8ba2d0f1c34d1ee2d630f15d0efb68e1048a"
 
+xml-char-classes@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/xml-char-classes/-/xml-char-classes-1.0.0.tgz#64657848a20ffc5df583a42ad8a277b4512bbc4d"
+
 xmlhttprequest-ssl@1.5.3:
   version "1.5.3"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz#185a888c04eca46c3e4070d99f7b49de3528992d"
 
-xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.1:
+xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 
@@ -6277,39 +7191,15 @@ yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
-yargs-parser@^4.2.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
-  dependencies:
-    camelcase "^3.0.0"
-
 yargs-parser@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
   dependencies:
     camelcase "^4.1.0"
 
-yargs@6.6.0:
-  version "6.6.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-6.6.0.tgz#782ec21ef403345f830a808ca3d513af56065208"
-  dependencies:
-    camelcase "^3.0.0"
-    cliui "^3.2.0"
-    decamelize "^1.1.1"
-    get-caller-file "^1.0.1"
-    os-locale "^1.4.0"
-    read-pkg-up "^1.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^1.0.2"
-    which-module "^1.0.0"
-    y18n "^3.2.1"
-    yargs-parser "^4.2.0"
-
-yargs@^8.0.2:
-  version "8.0.2"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.2.tgz#6299a9055b1cefc969ff7e79c1d918dceb22c360"
+yargs@9.0.1:
+  version "9.0.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-9.0.1.tgz#52acc23feecac34042078ee78c0c007f5085db4c"
   dependencies:
     camelcase "^4.1.0"
     cliui "^3.2.0"
@@ -6325,24 +7215,47 @@ yargs@^8.0.2:
     y18n "^3.2.1"
     yargs-parser "^7.0.0"
 
-yargs@~3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
+yargs@~1.2.6:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-1.2.6.tgz#9c7b4a82fd5d595b2bf17ab6dcc43135432fe34b"
   dependencies:
-    camelcase "^1.0.2"
-    cliui "^2.1.0"
-    decamelize "^1.0.0"
-    window-size "0.1.0"
+    minimist "^0.1.0"
 
 yeast@0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
 
-zip-stream@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04"
+yeoman-environment@^1.1.0:
+  version "1.6.6"
+  resolved "https://registry.yarnpkg.com/yeoman-environment/-/yeoman-environment-1.6.6.tgz#cd85fa67d156060e440d7807d7ef7cf0d2d1d671"
   dependencies:
-    archiver-utils "^1.3.0"
-    compress-commons "^1.2.0"
-    lodash "^4.8.0"
-    readable-stream "^2.0.0"
+    chalk "^1.0.0"
+    debug "^2.0.0"
+    diff "^2.1.2"
+    escape-string-regexp "^1.0.2"
+    globby "^4.0.0"
+    grouped-queue "^0.3.0"
+    inquirer "^1.0.2"
+    lodash "^4.11.1"
+    log-symbols "^1.0.1"
+    mem-fs "^1.1.0"
+    text-table "^0.2.0"
+    untildify "^2.0.0"
+
+yeoman-environment@^2.0.0:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/yeoman-environment/-/yeoman-environment-2.0.5.tgz#84f22bafa84088971fe99ea85f654a3a3dd2b693"
+  dependencies:
+    chalk "^2.1.0"
+    debug "^3.1.0"
+    diff "^3.3.1"
+    escape-string-regexp "^1.0.2"
+    globby "^6.1.0"
+    grouped-queue "^0.3.3"
+    inquirer "^3.3.0"
+    is-scoped "^1.0.0"
+    lodash "^4.17.4"
+    log-symbols "^2.1.0"
+    mem-fs "^1.1.0"
+    text-table "^0.2.0"
+    untildify "^3.0.2"
-- 
GitLab