mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
257 lines
6.3 KiB
HTML
257 lines
6.3 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<title>three.js misc - lights - point + directional</title>
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<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">
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<style>
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body {
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background:#fff;
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padding:0;
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margin:0;
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overflow:hidden;
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font-family:georgia;
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text-align:center;
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}
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h1 { }
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a { color:skyblue }
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canvas { pointer-events:none; z-index:10; }
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#d { text-align:center; margin:1em 0 -15.7em 0; z-index:0; position:relative; display:block }
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.button { background:#000; color:#fff; padding:0.2em 0.5em; cursor:pointer }
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.inactive { background:#999; color:#eee }
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</style>
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</head>
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<body>
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<div id="d">
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<h1>lights test</h1>
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<span id="rcanvas" class="button inactive">2d canvas renderer</span>
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<span id="rwebgl" class="button">WebGL renderer</span>
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<br/>
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<p>Best viewed in Chrome 8/9 or Firefox 4 using WebGL renderer.
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<p>Canvas renderer is very slow on anything other than Chrome.
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</div>
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<script src="../build/Three.js"></script>
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<script src="js/RequestAnimationFrame.js"></script>
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<script src="js/Stats.js"></script>
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<script>
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var SCREEN_WIDTH = window.innerWidth / 2;
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var SCREEN_HEIGHT = window.innerHeight;
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var FLOOR = -250;
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var container, stats;
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var camera, scene, target, canvasRenderer, webglRenderer;
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var mesh, zmesh, lightMesh, geometry;
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var directionalLight, pointLight;
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var mouseX = 0, mouseY = 0;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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var render_canvas = 0, render_gl = 1;
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var has_gl = 0;
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var bcanvas = document.getElementById( 'rcanvas' );
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var bwebgl = document.getElementById( 'rwebgl' );
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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init();
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animate();
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//render_canvas = !has_gl;
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bwebgl.style.display = has_gl ? 'inline' : 'none';
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bcanvas.className = render_canvas ? 'button' : 'button inactive';
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function init() {
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container = document.createElement('div');
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document.body.appendChild(container);
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camera = new THREE.PerspectiveCamera( 75, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 100000 );
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camera.position.z = 500;
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target = new THREE.Vector3( 0, 0, 0 );
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scene = new THREE.Scene();
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// Spheres
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var geometry = new THREE.SphereGeometry( 100, 16, 8 );
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var material = new THREE.MeshLambertMaterial( { color: 0xffffff, shading: THREE.FlatShading } );
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for ( var i = 0; i < 30; i ++ ) {
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mesh = new THREE.Mesh( geometry, material );
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mesh.position.x = 500 * ( Math.random() - 0.5 );
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mesh.position.y = 500 * ( Math.random() - 0.5 );
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mesh.position.z = 500 * ( Math.random() - 0.5 );
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mesh.scale.x = mesh.scale.y = mesh.scale.z = 0.25 * ( Math.random() + 0.5 );
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mesh.overdraw = true;
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scene.add( mesh );
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}
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// Torus
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mesh = new THREE.Mesh( new THREE.TorusGeometry( 100, 25, 15, 30 ), new THREE.MeshLambertMaterial( { color: 0xffffff } ) );
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mesh.overdraw = true;
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scene.add( mesh );
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// Lights
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var ambient = new THREE.AmbientLight( 0x101010 );
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scene.add( ambient );
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directionalLight = new THREE.DirectionalLight( 0xffffff );
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directionalLight.position.set( 0, -70, 100 ).normalize();
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scene.add( directionalLight );
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pointLight = new THREE.PointLight( 0xffaa00 );
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scene.add( pointLight );
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lightMesh = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { color: 0xffaa00 } ) );
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lightMesh.scale.x = lightMesh.scale.y = lightMesh.scale.z = 0.05;
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lightMesh.position = pointLight.position;
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lightMesh.overdraw = true;
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scene.add( lightMesh );
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if ( render_canvas ) {
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canvasRenderer = new THREE.CanvasRenderer();
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canvasRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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container.appendChild( canvasRenderer.domElement );
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}
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if ( render_gl ) {
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try {
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webglRenderer = new THREE.WebGLRenderer();
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webglRenderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
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webglRenderer.domElement.style.position = "relative";
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container.appendChild( webglRenderer.domElement );
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has_gl = 1;
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} catch (e) {
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}
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}
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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stats.domElement.style.zIndex = 100;
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container.appendChild( stats.domElement );
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bcanvas.addEventListener("click", toggleCanvas, false);
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bwebgl.addEventListener("click", toggleWebGL, false);
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}
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function onDocumentMouseMove( event ) {
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mouseX = ( event.clientX - windowHalfX );
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mouseY = ( event.clientY - windowHalfY );
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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();
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stats.update();
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}
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var r = 0, counter = 0;
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function render() {
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counter == 30 ? scene.remove( directionalLight ) : counter ++;
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camera.position.x += ( mouseX - camera.position.x ) * .05;
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camera.position.y += ( - mouseY - camera.position.y ) * .05;
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camera.lookAt( target );
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for ( var i = 0, l = scene.objects.length; i < l; i ++ ) {
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if ( i%3 == 1 )
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scene.objects[i].rotation.z += 0.05;
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else if ( i%3 == 2 )
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scene.objects[i].rotation.y += 0.05;
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else if ( i%3 == 0 )
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scene.objects[i].rotation.x += 0.05;
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}
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lightMesh.position.x = 200 * Math.cos( r );
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lightMesh.position.z = 200 * Math.sin( r );
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r += 0.1;
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if ( render_canvas ) canvasRenderer.render( scene, camera );
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if ( render_gl && has_gl ) webglRenderer.render( scene, camera );
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}
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function toggleCanvas() {
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render_canvas = !render_canvas;
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bcanvas.className = render_canvas ? "button" : "button inactive";
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render_gl = !render_canvas;
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bwebgl.className = render_gl ? "button" : "button inactive";
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if( has_gl )
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webglRenderer.domElement.style.display = render_gl ? "block" : "none";
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canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
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}
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function toggleWebGL() {
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render_gl = !render_gl;
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bwebgl.className = render_gl ? "button" : "button inactive";
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render_canvas = !render_gl;
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bcanvas.className = render_canvas ? "button" : "button inactive";
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if( has_gl )
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webglRenderer.domElement.style.display = render_gl ? "block" : "none";
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canvasRenderer.domElement.style.display = render_canvas ? "block" : "none";
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}
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</script>
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</body>
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</html>
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