javascript
/
three.js
miroir de https://github.com/tazdij/three.js.git


			
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							<!doctype html>
<html lang="en">
	<head>
		<title>three.js webgl - camera</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: #000;
				margin: 0px;
				overflow: hidden;
			}

			#info {
				position: absolute;
				top: 0px; width: 100%;
				padding: 5px;
				z-index: 100;
			}

			a {

				color: #0080ff;
			}

		</style>
	</head>
	<body>

		<div id="container"></div>
		<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - camera</div>

		<script src="../build/Three.js"></script>
		<script src="js/Stats.js"></script>

		<script>

			var SCREEN_WIDTH = window.innerWidth;
			var SCREEN_HEIGHT = window.innerHeight;

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

			var r = 0;

			init();
			animate();

			function init() {

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

				scene = new THREE.Scene();

				camera = new THREE.PerspectiveCamera( 50, 0.5 * SCREEN_WIDTH / SCREEN_HEIGHT, 1, 10000 );
				camera.position.z = 2500;
				scene.add( camera );

				camera2 = new THREE.PerspectiveCamera( 50, 0.5 * SCREEN_WIDTH / SCREEN_HEIGHT, 150, 1000 );
				scene.add( camera2 );

				var visibleCamera = new THREE.VisibleCamera( camera2 );
				camera2.add( visibleCamera );

				//

				mesh = new THREE.Mesh( new THREE.SphereGeometry( 100, 16, 8 ), new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true } ) );
				scene.add( mesh );

				var mesh2 = new THREE.Mesh( new THREE.SphereGeometry( 50, 16, 8 ), new THREE.MeshBasicMaterial( { color: 0x00ff00, wireframe: true } ) );
				mesh2.position.y = 150;
				mesh.add( mesh2 );

				//

				var x, y, z, geo = new THREE.Geometry();

				for ( var i = 0; i < 10000; i ++ ) {

					x = THREE.Math.randFloatSpread( 2000 );
					y = THREE.Math.randFloatSpread( 2000 );
					z = THREE.Math.randFloatSpread( 2000 );

					var p = new THREE.Vector3( x, y, z );
					geo.vertices.push( new THREE.Vertex( p ) );

				}

				var particles = new THREE.ParticleSystem( geo, new THREE.ParticleBasicMaterial( { color: 0x888888 } ) );
				scene.add( particles );

				//


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

				renderer.autoClear = false;

				//

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

				stats.domElement.children[ 0 ].children[ 0 ].style.color = "#666";
				stats.domElement.children[ 0 ].style.background = "transparent";
				stats.domElement.children[ 0 ].children[ 1 ].style.display = "none";

				container.appendChild( stats.domElement );

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize( event ) {

				SCREEN_WIDTH = window.innerWidth;
				SCREEN_HEIGHT = window.innerHeight;

				renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );

				camera.aspect = 0.5 * SCREEN_WIDTH / SCREEN_HEIGHT;
				camera.updateProjectionMatrix();

				camera2.aspect = 0.5 * SCREEN_WIDTH / SCREEN_HEIGHT;
				camera2.updateProjectionMatrix();

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}


			function render() {

				mesh.position.x = 700 * Math.cos( r );
				mesh.position.z = 700 * Math.sin( r );
				mesh.position.y = 700 * Math.sin( r );

				mesh.children[ 0 ].position.x = 70 * Math.cos( 2 * r );
				mesh.children[ 0 ].position.z = 70 * Math.sin( r );

				camera2.fov = 35 + 30 * Math.sin( 0.5 * r );
				camera2.far = mesh.position.length();
				camera2.updateProjectionMatrix();
				camera2.children[ 0 ].update( camera2 );

				camera2.lookAt( mesh.position );

				renderer.clear();

				renderer.setViewport( 0, 0, SCREEN_WIDTH/2, SCREEN_HEIGHT );
				renderer.render( scene, camera2 );

				renderer.setViewport( SCREEN_WIDTH/2, 0, SCREEN_WIDTH/2, SCREEN_HEIGHT );
				renderer.render( scene, camera );

				r += 0.01;

			}


		</script>

	</body>
</html>