webgl_shadowmap.html 10.1 KB
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<!doctype html>
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<html lang="en">
	<head>
		<title>three.js webgl - shadow map</title>
		<meta charset="utf-8">
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		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
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			body {
				font-family: Monospace;
				background-color: #000;
				color: #fff;
				margin: 0px;
				overflow: hidden;
			}
			#info {
				position: absolute;
				top: 10px;
				width: 100%;
				text-align: center;
				z-index: 100;
				display:block;
			}
			#info a { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
		</style>
	</head>

	<body>

		<div id="info">
		<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - shadowmap - models by <a href="http://mirada.com/">mirada</a> from <a href="http://ro.me">rome</a></br>
		move camera with WASD / RF + mouse
		</div>

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		<script src="../build/Three.js"></script>
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		<script src="js/ShaderExtras.js"></script>
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		<script src="js/Detector.js"></script>
		<script src="js/Stats.js"></script>
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		<script src="fonts/helvetiker_bold.typeface.js"></script>
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		<script>
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			if ( ! Detector.webgl ) Detector.addGetWebGLMessage();

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			var SHADOW_MAP_WIDTH = 2048, SHADOW_MAP_HEIGHT = 1024;
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			var MARGIN = 100;

			var SCREEN_WIDTH = window.innerWidth;
			var SCREEN_HEIGHT = window.innerHeight - 2 * MARGIN;
			var FLOOR = -250;

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			var camera, controls, scene, renderer;
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			var container, stats;

			var NEAR = 5, FAR = 3000;

			var sceneHUD, cameraOrtho, hudMaterial;

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			var morph, morphs = [];
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			var light;

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			var clock = new THREE.Clock();

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			init();
			animate();


			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

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				// SCENE

				scene = new THREE.Scene();
				scene.fog = new THREE.Fog( 0xffaa55, 1000, FAR );
				THREE.ColorUtils.adjustHSV( scene.fog.color, 0.02, -0.15, -0.65 );

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				// SCENE CAMERA

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				camera = new THREE.PerspectiveCamera( 23, SCREEN_WIDTH / SCREEN_HEIGHT, NEAR, FAR );
				camera.position.set( 700, 50, 1900 );
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				scene.add( camera );
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				controls = new THREE.FirstPersonControls( camera );
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				controls.lookSpeed = 0.0125;
				controls.movementSpeed = 500;
				controls.noFly = false;
				controls.lookVertical = true;
				controls.constrainVertical = true;
				controls.verticalMin = 1.5;
				controls.verticalMax = 2.0;
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				controls.lon = -110;
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				// LIGHTS

				var ambient = new THREE.AmbientLight( 0x444444 );
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				scene.add( ambient );
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				light = new THREE.SpotLight( 0xffffff, 1, 0, Math.PI, 1 );
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				light.position.set( 0, 1500, 1000 );
				light.target.position.set( 0, 0, 0 );
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				light.castShadow = true;
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				light.shadowCameraNear = 700;
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				light.shadowCameraFar = camera.far;
				light.shadowCameraFov = 50;

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				//light.shadowCameraVisible = true;

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				light.shadowBias = 0.0001;
				light.shadowDarkness = 0.5;

				light.shadowMapWidth = SHADOW_MAP_WIDTH;
				light.shadowMapHeight = SHADOW_MAP_HEIGHT;

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				scene.add( light );
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				createHUD();
				createScene();

				// RENDERER

				renderer = new THREE.WebGLRenderer( { clearColor: 0x000000, clearAlpha: 1, antialias: false } );
				renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
				renderer.domElement.style.position = "relative";
				renderer.domElement.style.top = MARGIN + 'px';
				container.appendChild( renderer.domElement );

				renderer.setClearColor( scene.fog.color, 1 );
				renderer.autoClear = false;

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				//
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				renderer.shadowMapEnabled = true;
				renderer.shadowMapSoft = true;

				// STATS

				stats = new Stats();
				stats.domElement.style.position = 'absolute';
				stats.domElement.style.top = '0px';
				stats.domElement.style.zIndex = 100;
				//container.appendChild( stats.domElement );

			}

			function createHUD() {

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				cameraOrtho = new THREE.OrthographicCamera( SCREEN_WIDTH / - 2, SCREEN_WIDTH / 2,  SCREEN_HEIGHT / 2, SCREEN_HEIGHT / - 2, -10, 1000 );
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				cameraOrtho.position.z = 10;

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				var shader = THREE.ShaderExtras[ "unpackDepthRGBA" ];
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				var uniforms = new THREE.UniformsUtils.clone( shader.uniforms );

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				hudMaterial = new THREE.ShaderMaterial( { vertexShader: shader.vertexShader, fragmentShader: shader.fragmentShader, uniforms: uniforms } );
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				var hudGeo = new THREE.PlaneGeometry( SHADOW_MAP_WIDTH / 2, SHADOW_MAP_HEIGHT / 2 );
				var hudMesh = new THREE.Mesh( hudGeo, hudMaterial );
				hudMesh.position.x = ( SCREEN_WIDTH - SHADOW_MAP_WIDTH / 2 ) * -0.5;
				hudMesh.position.y = ( SCREEN_HEIGHT - SHADOW_MAP_HEIGHT / 2 ) * -0.5;
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				hudMesh.rotation.x = Math.PI / 2;
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				sceneHUD = new THREE.Scene();
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				sceneHUD.add( hudMesh );
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				cameraOrtho.lookAt( sceneHUD.position );

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			}

			function createScene( ) {

				// GROUND

				var geometry = new THREE.PlaneGeometry( 100, 100 );
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				var planeMaterial = new THREE.MeshPhongMaterial( { color: 0xffdd99 } );
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				THREE.ColorUtils.adjustHSV( planeMaterial.color, 0, 0, 0.9 );
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				planeMaterial.ambient = planeMaterial.color;
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				var ground = new THREE.Mesh( geometry, planeMaterial );

				ground.position.set( 0, FLOOR, 0 );
				ground.scale.set( 100, 100, 100 );

				ground.castShadow = false;
				ground.receiveShadow = true;

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				scene.add( ground );
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				// TEXT

				var textGeo = new THREE.TextGeometry( "THREE.JS", {

					size: 200,
					height: 50,
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					curveSegments: 12,
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					font: "helvetiker",
					weight: "bold",
					style: "normal",

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					bevelThickness: 2,
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					bevelSize: 5,
					bevelEnabled: true

				});

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				textGeo.computeBoundingBox();
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				var centerOffset = -0.5 * ( textGeo.boundingBox.max.x - textGeo.boundingBox.min.x );
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				var textMaterial = new THREE.MeshPhongMaterial( { color: 0xff0000, specular: 0xffffff, ambient: 0xaa0000 } );

				var mesh = new THREE.Mesh( textGeo, textMaterial );
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				mesh.position.x = centerOffset;
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				mesh.position.y = FLOOR + 67;

				mesh.castShadow = true;
				mesh.receiveShadow = true;

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				scene.add( mesh );
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				// CUBES

				var mesh = new THREE.Mesh( new THREE.CubeGeometry( 1500, 220, 150 ), planeMaterial );

				mesh.position.y = FLOOR - 50;
				mesh.position.z = 20;

				mesh.castShadow = true;
				mesh.receiveShadow = true;

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				scene.add( mesh );
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				var mesh = new THREE.Mesh( new THREE.CubeGeometry( 1600, 170, 250 ), planeMaterial );

				mesh.position.y = FLOOR - 50;
				mesh.position.z = 20;

				mesh.castShadow = true;
				mesh.receiveShadow = true;

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				scene.add( mesh );
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				// MORPHS

				function addMorph( geometry, speed, duration, x, y, z, fudgeColor ) {

					var material = new THREE.MeshLambertMaterial( { color: 0xffaa55, morphTargets: true, vertexColors: THREE.FaceColors } );

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					//geometry.materials[ 0 ] = material;

					if ( fudgeColor ) {

						THREE.ColorUtils.adjustHSV( material.color, 0, 0.5 - Math.random(), 0.5 - Math.random() );
						material.ambient = material.color;

					}
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					var meshAnim = new THREE.MorphAnimMesh( geometry, material );

					meshAnim.speed = speed;
					meshAnim.duration = duration;
					meshAnim.time = 600 * Math.random();
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					meshAnim.position.set( x, y, z );
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					meshAnim.rotation.y = Math.PI/2;
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					meshAnim.castShadow = true;
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					meshAnim.receiveShadow = true;
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					scene.add( meshAnim );
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					morphs.push( meshAnim );
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				}

				function morphColorsToFaceColors( geometry ) {

					if ( geometry.morphColors && geometry.morphColors.length ) {

						var colorMap = geometry.morphColors[ 0 ];

						for ( var i = 0; i < colorMap.colors.length; i ++ ) {

							geometry.faces[ i ].color = colorMap.colors[ i ];

						}

					}

				}

				var loader = new THREE.JSONLoader();

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				loader.load( "models/animated/horse.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );

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					addMorph( geometry, 550, 1000, 100 - Math.random() * 1000, FLOOR, 300, true );
					addMorph( geometry, 550, 1000, 100 - Math.random() * 1000, FLOOR, 450, true );
					addMorph( geometry, 550, 1000, 100 - Math.random() * 1000, FLOOR, 600, true );
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					addMorph( geometry, 550, 1000, 100 - Math.random() * 1000, FLOOR, -300, true );
					addMorph( geometry, 550, 1000, 100 - Math.random() * 1000, FLOOR, -450, true );
					addMorph( geometry, 550, 1000, 100 - Math.random() * 1000, FLOOR, -600, true );
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				} );
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				/*
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				loader.load( "obj/morphs/fox.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );
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					addMorph( geometry, 200, 1000, 100 - Math.random() * 500, FLOOR - 5, 600 );
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				} );
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				loader.load( "obj/morphs/shdw3walk.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );
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					addMorph( geometry, 40, 2000, -500, FLOOR + 60, 245 );
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				} );
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				loader.load( "obj/morphs/flamingo.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );
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					addMorph( geometry, 500, 1000, 500 - Math.random() * 500, FLOOR + 350, 40 );
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				} );
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				loader.load( "obj/morphs/stork.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );
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					addMorph( geometry, 350, 1000, 500 - Math.random() * 500, FLOOR + 350, 340 );
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				} );
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				loader.load( "obj/morphs/mountainlion.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );
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					addMorph( geometry, 400, 1000, 500 - Math.random() * 500, FLOOR - 5, 700 );
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				} );
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				loader.load( "obj/morphs/bearBrown.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );
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					addMorph( geometry, 300, 2500, -500, FLOOR - 5, -750 );
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				} );
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				loader.load( "obj/morphs/parrot.js", function( geometry ) {
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					morphColorsToFaceColors( geometry );
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					addMorph( geometry, 450, 500, 500 - Math.random() * 500, FLOOR + 300, 700 );
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				} );
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				*/

			}

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			//
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			function animate() {
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				requestAnimationFrame( animate );
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				render();
				stats.update();
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			}
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			function render() {
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				var delta = clock.getDelta();
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				for ( var i = 0; i < morphs.length; i ++ ) {
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					morph = morphs[ i ];
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					morph.updateAnimation( 1000 * delta );
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					morph.position.x += morph.speed * delta;
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					if ( morph.position.x  > 2000 )  {
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						morph.position.x = -1000 - Math.random() * 500;
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					}
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				}

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				controls.update( delta );
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				renderer.clear();
				renderer.render( scene, camera );

				// Render debug HUD with shadow map

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				//hudMaterial.uniforms.tDiffuse.texture = light.shadowMap;
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				//renderer.render( sceneHUD, cameraOrtho );

			}

		</script>

	</body>
</html>