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<!DOCTYPE html><html lang="en">	<head>		<title>three.js webgl - geometry - vertex colors</title>		<meta charset="utf-8">		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">		<style>			body {				color: #808080;				font-family:Monospace;				font-size:13px;				text-align:center;
				background-color: #fff;				margin: 0px;				overflow: hidden;			}
			#info {				position: absolute;				top: 0px; width: 100%;				padding: 5px;			}
			a {
				color: #0080ff;			}
		</style>	</head>	<body>
		<div id="container"></div>		<div id="info"><a href="http://threejs.org" target="_blank">three.js</a> webgl - vertex colors</div>
		<script src="js/three.min.js"></script>
		<script src="js/Detector.js"></script>		<script src="js/libs/stats.min.js"></script>
		<script>
			if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
			var container, stats;
			var camera, scene, renderer;
			var mesh, group1, group2, group3, light;
			var mouseX = 0, mouseY = 0;
			var windowHalfX = window.innerWidth / 2;			var windowHalfY = window.innerHeight / 2;
			init();			animate();
			function init() {
				container = document.getElementById( 'container' );
				camera = new THREE.PerspectiveCamera( 20, window.innerWidth / window.innerHeight, 1, 10000 );				camera.position.z = 1800;
				scene = new THREE.Scene();
				light = new THREE.DirectionalLight( 0xffffff );				light.position.set( 0, 0, 1 );				scene.add( light );
				// shadow
				var canvas = document.createElement( 'canvas' );				canvas.width = 128;				canvas.height = 128;
				var context = canvas.getContext( '2d' );				var gradient = context.createRadialGradient( canvas.width / 2, canvas.height / 2, 0, canvas.width / 2, canvas.height / 2, canvas.width / 2 );				gradient.addColorStop( 0.1, 'rgba(210,210,210,1)' );				gradient.addColorStop( 1, 'rgba(255,255,255,1)' );
				context.fillStyle = gradient;				context.fillRect( 0, 0, canvas.width, canvas.height );
				var shadowTexture = new THREE.Texture( canvas );				shadowTexture.needsUpdate = true;
				var shadowMaterial = new THREE.MeshBasicMaterial( { map: shadowTexture } );				var shadowGeo = new THREE.PlaneBufferGeometry( 300, 300, 1, 1 );
				mesh = new THREE.Mesh( shadowGeo, shadowMaterial );				mesh.position.y = - 250;				mesh.rotation.x = - Math.PI / 2;				scene.add( mesh );
				mesh = new THREE.Mesh( shadowGeo, shadowMaterial );				mesh.position.y = - 250;				mesh.position.x = - 400;				mesh.rotation.x = - Math.PI / 2;				scene.add( mesh );
				mesh = new THREE.Mesh( shadowGeo, shadowMaterial );				mesh.position.y = - 250;				mesh.position.x = 400;				mesh.rotation.x = - Math.PI / 2;				scene.add( mesh );
				var faceIndices = [ 'a', 'b', 'c' ];
				var color, f, f2, f3, p, vertexIndex,
					radius = 200,
					geometry  = new THREE.IcosahedronGeometry( radius, 1 ),					geometry2 = new THREE.IcosahedronGeometry( radius, 1 ),					geometry3 = new THREE.IcosahedronGeometry( radius, 1 );
				for ( var i = 0; i < geometry.faces.length; i ++ ) {
					f  = geometry.faces[ i ];					f2 = geometry2.faces[ i ];					f3 = geometry3.faces[ i ];
					for( var j = 0; j < 3; j++ ) {
						vertexIndex = f[ faceIndices[ j ] ];
						p = geometry.vertices[ vertexIndex ];
						color = new THREE.Color( 0xffffff );						color.setHSL( ( p.y / radius + 1 ) / 2, 1.0, 0.5 );
						f.vertexColors[ j ] = color;
						color = new THREE.Color( 0xffffff );						color.setHSL( 0.0, ( p.y / radius + 1 ) / 2, 0.5 );
						f2.vertexColors[ j ] = color;
						color = new THREE.Color( 0xffffff );						color.setHSL( 0.125 * vertexIndex/geometry.vertices.length, 1.0, 0.5 );
						f3.vertexColors[ j ] = color;
					}
				}

				var materials = [
					new THREE.MeshLambertMaterial( { color: 0xffffff, shading: THREE.FlatShading, vertexColors: THREE.VertexColors } ),					new THREE.MeshBasicMaterial( { color: 0x000000, shading: THREE.FlatShading, wireframe: true, transparent: true } )
				];
				group1 = THREE.SceneUtils.createMultiMaterialObject( geometry, materials );				group1.position.x = -400;				group1.rotation.x = -1.87;				scene.add( group1 );
				group2 = THREE.SceneUtils.createMultiMaterialObject( geometry2, materials );				group2.position.x = 400;				group2.rotation.x = 0;				scene.add( group2 );
				group3 = THREE.SceneUtils.createMultiMaterialObject( geometry3, materials );				group3.position.x = 0;				group3.rotation.x = 0;				scene.add( group3 );
				renderer = new THREE.WebGLRenderer( { antialias: true } );				renderer.setClearColor( 0xffffff );				renderer.setPixelRatio( window.devicePixelRatio );				renderer.setSize( window.innerWidth, window.innerHeight );				container.appendChild( renderer.domElement );
				stats = new Stats();				stats.domElement.style.position = 'absolute';				stats.domElement.style.top = '0px';				container.appendChild( stats.domElement );
				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				//
				window.addEventListener( 'resize', onWindowResize, false );
			}
			function onWindowResize() {
				windowHalfX = window.innerWidth / 2;				windowHalfY = window.innerHeight / 2;
				camera.aspect = window.innerWidth / window.innerHeight;				camera.updateProjectionMatrix();
				renderer.setSize( window.innerWidth, window.innerHeight );
			}
			function onDocumentMouseMove( event ) {
				mouseX = ( event.clientX - windowHalfX );				mouseY = ( event.clientY - windowHalfY );
			}
			//
			function animate() {
				requestAnimationFrame( animate );
				render();				stats.update();
			}
			function render() {
				camera.position.x += ( mouseX - camera.position.x ) * 0.05;				camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
				camera.lookAt( scene.position );
				renderer.render( scene, camera );
			}
		</script>
	</body></html>