javascript
/
three.js
огледало от https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - multiple renderers</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;
			}

			#container1, #container2, #container3 {
				position: absolute;
				border-style: solid;
			}

			#container1 {
				width: 400px;
				height: 200px;
				left: 150px;
			}

			#container2 {
				width: 400px;
				height: 200px;
				left: 150px;
				top: 400px;
			}

			#container3 {
				width: 300px;
				height: 300px;
				left: 75px;
				top: 300px;
  				box-shadow: 0px 0px 100px 0px #000;
			}

			a {

				color: #0080ff;
			}

		</style>
	</head>
	<body>

		<div id="container">
			<div id="container1"></div>
			<div id="container2"></div>
			<div id="container3"></div>
		</div>
		<div id="info"><a href="http://threejs.org" target="_blank">three.js</a> webgl - multiple renderers</div>

		<script src="../build/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 apps = [];

			var scene = createScene();

			init();
			animate();

			function init() {

				var container1 = document.getElementById( 'container1' );
				var container2 = document.getElementById( 'container2' );
				var container3 = document.getElementById( 'container3' );

				var WIDTH = 800;
				var HEIGHT = 600;

				apps.push( new App( container1, WIDTH, HEIGHT ) );
				apps.push( new App( container2, WIDTH, HEIGHT ) );
				apps.push( new App( container3, WIDTH, HEIGHT ) );

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );

			}

			function animate() {

				updateScene();

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

					apps[ i ].animate();

				}

				requestAnimationFrame( animate );

			}

			function onDocumentMouseMove (e) {

				var container3 = document.getElementById( 'container3' );

				container3.style.left = e.pageX - container3.clientWidth / 2 + "px";
				container3.style.top = e.pageY - container3.clientHeight / 2 + "px";

			}

			function createScene () {

				var mesh, group1, group2, group3, light;

				scene = new THREE.Scene();

				light = new THREE.DirectionalLight( 0xffffff );
				light.position.set( 0, 0, 1 ).normalize();
				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.x = - 400;
				mesh.position.y = - 250;
				mesh.rotation.x = - Math.PI / 2;
				scene.add( mesh );

				mesh = new THREE.Mesh( shadowGeo, shadowMaterial );
				mesh.position.x = 400;
				mesh.position.y = - 250;
				mesh.rotation.x = - Math.PI / 2;
				scene.add( mesh );

				var faceIndices = [ 'a', 'b', 'c' ];

				var color, f1, f2, f3, p, vertexIndex,

					radius = 200,

					geometry1 = new THREE.IcosahedronGeometry( radius, 1 ),
					geometry2 = new THREE.IcosahedronGeometry( radius, 1 ),
					geometry3 = new THREE.IcosahedronGeometry( radius, 1 );

				for ( var i = 0; i < geometry1.faces.length; i ++ ) {

					f1 = geometry1.faces[ i ];
					f2 = geometry2.faces[ i ];
					f3 = geometry3.faces[ i ];

					for( var j = 0; j < 3; j ++ ) {

						vertexIndex = f1[ faceIndices[ j ] ];

						p = geometry1.vertices[ vertexIndex ];

						color = new THREE.Color( 0xffffff );
						color.setHSL( ( p.y / radius + 1 ) / 2, 1.0, 0.5 );

						f1.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 / geometry1.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( geometry1, 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.name = 'rotating ball';
				group3.position.x = 0;
				group3.rotation.x = 0;
				scene.add( group3 );

				return scene;
			}

			function updateScene () {

				var group = scene.getObjectByName( 'rotating ball' );
				group.rotation.x += Math.PI / 600;

				var geometry = group.children[0].geometry;

				for (var i = 0; i < geometry.faces.length; i ++) {

						var f = geometry.faces[ i ];

						for( var j = 0; j < 3; j ++ ) {

							var color = f.vertexColors[ j ];
							color.setHex( ( color.getHex() + 0xfdfdfd ) % 0xffffff );

						}

					}

				geometry.colorsNeedUpdate = true;

			}

			function App( container, fullWidth, fullHeight ) {

				var stats;

				var camera, renderer;

				var mouseX = 0, mouseY = 0;

				var windowHalfX = window.innerWidth / 2;
				var windowHalfY = window.innerHeight / 2;

				init();

				function init() {

					camera = new THREE.PerspectiveCamera( 20, container.clientWidth / container.clientHeight, 1, 10000 );
					camera.setViewOffset( fullWidth, fullHeight, container.offsetLeft, container.offsetTop, container.clientWidth, container.clientHeight );
					camera.position.z = 1800;

					renderer = new THREE.WebGLRenderer( { antialias: true } );
					renderer.setClearColor( 0xffffff );
					renderer.setPixelRatio( window.devicePixelRatio );
					renderer.setSize( container.clientWidth, container.clientHeight );
					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 );

				}

				function onDocumentMouseMove( event ) {

					mouseX = ( event.clientX - windowHalfX );
					mouseY = ( event.clientY - windowHalfY );

				}

				//

				this.animate = function() {

					render();
					stats.update();

				};

				function render() {

					camera.setViewOffset( fullWidth, fullHeight, container.offsetLeft, container.offsetTop, container.clientWidth, container.clientHeight );

					camera.position.x += ( -mouseX - camera.position.x ) * 0.5;
					camera.position.y += ( - mouseY - camera.position.y ) * 0.5;

					camera.lookAt( scene.position );

					renderer.render( scene, camera );

				}
			}

		</script>

	</body>
</html>