javascript
/
three.js
镜像来自 https://github.com/tazdij/three.js.git


			
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js - Lights test</title>
		<meta charset="utf-8">
		<style type="text/css">
			body {
				background:#fff;
                padding:0;
				margin:0;
				overflow:hidden;
                font-family:georgia;
                text-align:center;
			}
            h1 { }
            a { color:skyblue }
            canvas { pointer-events:none; z-index:10; position:relative; }
            #log { position:absolute; top:50px; text-align:left; display:block; z-index:100 }
            #d { text-align:center; margin:1em 0 -15.7em 0; z-index:0; position:relative; display:block }
            .button { background:#000; color:#fff; padding:0.2em 0.5em; cursor:pointer }
            .inactive { background:#999; color:#eee }
		</style>
	</head>
	
    <body>
        <div id="d">
            <h1>Lights test</h1>

            <span id="rcanvas" class="button inactive">2d canvas renderer</span>
            <span id="rwebgl" class="button">WebGL renderer</span>
            <br/>
            
            <p>Using a modified version of <a href="http://github.com/alteredq/three.js">Three.js</a> by mrdoob.
            
            <br/>
            <p>Best viewed in Chrome 7/8 or Firefox 4 using WebGL renderer.
            <p>Canvas renderer is very slow on anything other than Chrome.
        </div>
        
        <div id="log"></div>

		<!--
        <script type="text/javascript" src="../build/Three.js"></script> 
        -->

		<script type="text/javascript" src="../src/Three.js"></script>
		<script type="text/javascript" src="../src/core/Color.js"></script>
		<script type="text/javascript" src="../src/core/Vector2.js"></script>
		<script type="text/javascript" src="../src/core/Vector3.js"></script>
		<script type="text/javascript" src="../src/core/Vector4.js"></script>
		<script type="text/javascript" src="../src/core/Rectangle.js"></script>
		<script type="text/javascript" src="../src/core/Matrix4.js"></script>
		<script type="text/javascript" src="../src/core/Vertex.js"></script>
		<script type="text/javascript" src="../src/core/Face3.js"></script>
		<script type="text/javascript" src="../src/core/Face4.js"></script>
		<script type="text/javascript" src="../src/core/UV.js"></script>
		<script type="text/javascript" src="../src/core/Geometry.js"></script>
		<script type="text/javascript" src="../src/cameras/Camera.js"></script>
		<script type="text/javascript" src="../src/lights/Light.js"></script>
		<script type="text/javascript" src="../src/lights/AmbientLight.js"></script>
		<script type="text/javascript" src="../src/lights/DirectionalLight.js"></script>
		<script type="text/javascript" src="../src/lights/PointLight.js"></script>
		<script type="text/javascript" src="../src/objects/Object3D.js"></script>
		<script type="text/javascript" src="../src/objects/Mesh.js"></script>
		<script type="text/javascript" src="../src/objects/Particle.js"></script>
		<script type="text/javascript" src="../src/objects/Line.js"></script>
		<script type="text/javascript" src="../src/materials/LineColorMaterial.js"></script>
		<script type="text/javascript" src="../src/materials/MeshBitmapMaterial.js"></script>
		<script type="text/javascript" src="../src/materials/MeshColorFillMaterial.js"></script>
		<script type="text/javascript" src="../src/materials/MeshColorStrokeMaterial.js"></script>
		<script type="text/javascript" src="../src/materials/MeshFaceMaterial.js"></script>
		<script type="text/javascript" src="../src/materials/ParticleCircleMaterial.js"></script>
		<script type="text/javascript" src="../src/materials/ParticleBitmapMaterial.js"></script>
		<script type="text/javascript" src="../src/scenes/Scene.js"></script>
		<script type="text/javascript" src="../src/renderers/Projector.js"></script>
		<script type="text/javascript" src="../src/renderers/CanvasRenderer.js"></script>
		<script type="text/javascript" src="../src/renderers/SVGRenderer.js"></script>
		<script type="text/javascript" src="../src/renderers/WebGLRenderer.js"></script>
		<script type="text/javascript" src="../src/renderers/renderables/RenderableFace3.js"></script>
		<script type="text/javascript" src="../src/renderers/renderables/RenderableFace4.js"></script>
		<script type="text/javascript" src="../src/renderers/renderables/RenderableParticle.js"></script>
		<script type="text/javascript" src="../src/renderers/renderables/RenderableLine.js"></script>
		<!--
        -->
		
		<script type="text/javascript" src="geometry/primitives/Sphere.js"></script>
		<script type="text/javascript" src="geometry/primitives/Plane.js"></script>

		<script type="text/javascript" src="js/Stats.js"></script>

		<script type="text/javascript">

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

			var container;
			var stats;

			var camera;
			var scene;
			var canvasRenderer, webglRenderer;

			var mesh, zmesh, lightMesh, geometry;
            
            var directionalLight, pointLight;
            
			var mouseX = 0;
			var mouseY = 0;

			var windowHalfX = window.innerWidth >> 1;
			var windowHalfY = window.innerHeight >> 1;

            var render_canvas = 1, render_gl = 1;
            var has_gl = 0;
            
            var bcanvas = document.getElementById("rcanvas");
            var bwebgl = document.getElementById("rwebgl");
            
			document.addEventListener('mousemove', onDocumentMouseMove, false);

			init();
            
			loop();
            
            //render_canvas = !has_gl;
            bwebgl.style.display = has_gl ? "inline" : "none";
            bcanvas.className = render_canvas ? "button" : "button inactive";
            
			setInterval(loop, 1000/60);
            
			function init() {

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

				camera = new THREE.Camera( 75, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 100000 );
                camera.position.z = 500;
                camera.updateMatrix();

				scene = new THREE.Scene();
                
                
                // SPHERES
                
                sphere = new Sphere( 100, 16, 8, 0 );
                for (var i=0; i<30; i++) {
                    mesh = new THREE.Mesh( sphere, new THREE.MeshColorFillMaterial( 0xffffff ) );
                    mesh.position.x = 500 * (Math.random() - 0.5);
                    mesh.position.y = 500 * (Math.random() - 0.5);
                    mesh.position.z = 500 * (Math.random() - 0.5);
                    mesh.scale.x = mesh.scale.y = mesh.scale.z = 0.25 * (Math.random() + 0.5);
                    mesh.overdraw = true;
                    mesh.updateMatrix();
                    scene.add(mesh);
                }
                

				// LIGHTS

                var ambient = new THREE.AmbientLight( 0x101010 );
				scene.addLight( ambient );

                directionalLight = new THREE.DirectionalLight( 0xffffff );
                directionalLight.position.y = -70;
                directionalLight.position.z = 100;
				directionalLight.position.normalize();
				scene.addLight( directionalLight );

				pointLight = new THREE.PointLight( 0xffaa00 );
                pointLight.position.x = 0;
                pointLight.position.y = 0;
                pointLight.position.z = 0;
				scene.addLight( pointLight );


                sphere = new Sphere( 100, 16, 8, 1 );
                lightMesh = new THREE.Mesh( sphere, new THREE.MeshColorFillMaterial( 0xffaa00 ) );
                lightMesh.scale.x = lightMesh.scale.y = lightMesh.scale.z = 0.05;
                lightMesh.position = pointLight.position;
                lightMesh.overdraw = true;
                lightMesh.updateMatrix();
                scene.add(lightMesh);


                if( render_canvas ) {
                    canvasRenderer = new THREE.CanvasRenderer();
                    canvasRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
                    container.appendChild( canvasRenderer.domElement );
                }

                if ( render_gl ) {
                    try {
                        webglRenderer = new THREE.WebGLRenderer();
                        webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
                        container.appendChild( webglRenderer.domElement );
                        has_gl = 1;
                    }
                    catch (e) {
                    }
                }

				stats = new Stats();
				stats.domElement.style.position = 'absolute';
				stats.domElement.style.top = '0px';
                stats.domElement.style.zIndex = 100;
				container.appendChild( stats.domElement );
                
                bcanvas.addEventListener("click", toggleCanvas, false);
                bwebgl.addEventListener("click", toggleWebGL, false);

                function createModel() {
                    
                    // MESH
                    
                    geometry = new Torus( );
                    zmesh = new THREE.Mesh( geometry, new THREE.MeshColorFillMaterial( 0xffffff ) );
                    zmesh.position.x = 0;
                    zmesh.position.z = 0;
                    zmesh.position.y = 0;
                    zmesh.scale.x = zmesh.scale.y = zmesh.scale.z = 100;
                    zmesh.overdraw = true;
                    zmesh.updateMatrix();
                    scene.add(zmesh);
                    
                }

                loadAsync( "obj/torus/Torus.js", createModel);

			}

            function loadAsync( url, callback ) {
                
                var el = document.createElement( 'script' );
                el.type = 'text/javascript';
                el.onload = callback;
                el.src = url;
                document.getElementsByTagName("head")[0].appendChild(el);

            }

            
			function onDocumentMouseMove(event) {

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

			}

            var r = 0;
            
			function loop() {

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY - camera.position.y ) * .05;
				camera.updateMatrix();
                
                
                for(var i=0; i<scene.objects.length; ++i) {
                    if ( i%3 == 1 )
                        scene.objects[i].rotation.x += 0.05;
                    else if ( i%3 == 2 )
                        scene.objects[i].rotation.y += 0.05;
                    else if ( i%3 == 0 )
                        scene.objects[i].rotation.z += 0.05;
                        
                    scene.objects[i].updateMatrix();
                }
                
                
                lightMesh.position.x = 200*Math.cos(r);
                lightMesh.position.z = 200*Math.sin(r);
                lightMesh.updateMatrix();

                r += 0.1;
                
				if ( render_canvas ) canvasRenderer.render( scene, camera );
				if ( render_gl && has_gl ) webglRenderer.render( scene, camera );

				stats.update();

			}

            function log(text) {
            
                var e = document.getElementById("log");
                e.innerHTML = text + "<br/>" + e.innerHTML;
                
            }
            
            function toggleCanvas() {
            
                render_canvas = !render_canvas;
                bcanvas.className = render_canvas ? "button" : "button inactive";
                
                render_gl = !render_canvas;
                bwebgl.className = render_gl ? "button" : "button inactive";
                
                if( has_gl )
                    webglRenderer.domElement.style.display = render_gl ? "block" : "none";
                
                canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
                
            }
            
            function toggleWebGL() {
            
                render_gl = !render_gl;
                bwebgl.className = render_gl ? "button" : "button inactive";
                
                render_canvas = !render_gl;
                bcanvas.className = render_canvas ? "button" : "button inactive";
                
                if( has_gl )
                    webglRenderer.domElement.style.display = render_gl ? "block" : "none";
                    
                canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
                
            }
		</script>

	</body>
</html>