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(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(factory((global.THREE = global.THREE || {})));
}(this, (function (exports) { 'use strict';
// Polyfills
if ( Number.EPSILON === undefined ) {
Number.EPSILON = Math.pow( 2, - 52 );
}
//
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 ( Function.prototype.name === undefined ) {
// Missing in IE9-11.
// 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 ) {
'use strict';
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() {}
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 = [], i = 0;
var length = listenerArray.length;
for ( i = 0; i < length; i ++ ) {
array[ i ] = listenerArray[ i ];
}
for ( i = 0; i < length; i ++ ) {
array[ i ].call( this, event );
}
}
}
};
var REVISION = '84';
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;
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