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+<!doctype html>
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+<html lang="en">
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+ <head>
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+ <title>three.js webgl - convex geometry</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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+ font-family: Monospace;
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+ background-color: #000;
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+ margin: 0px;
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+ overflow: hidden;
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+ }
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+ </style>
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+ </head>
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+ <body>
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+
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+ <script src="../build/Three.js"></script>
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+ <script src="js/Detector.js"></script>
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+ <script src="js/Stats.js"></script>
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+
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+ <script>
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+
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+ if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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+
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+ var container, stats;
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+
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+ var camera, scene, renderer;
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+
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+ init();
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+ animate();
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+
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+ function init() {
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+
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+ container = document.createElement( 'div' );
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+ document.body.appendChild( container );
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+
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+ scene = new THREE.Scene();
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+
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+ camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
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+ camera.position.y = 400;
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+ scene.add( camera );
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+
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+ var light, object, materials;
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+
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+ scene.add( new THREE.AmbientLight( 0x404040 ) );
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+
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+ light = new THREE.DirectionalLight( 0xffffff );
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+ light.position.set( 0, 1, 0 );
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+ scene.add( light );
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+
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+ materials = [
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+ new THREE.MeshLambertMaterial( { ambient: 0xbbbbbb, map: THREE.ImageUtils.loadTexture( 'textures/ash_uvgrid01.jpg' ) } ),
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+ new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true, transparent: true, opacity: 0.1 } )
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+ ];
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+
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+
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+ // tetrahedron
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+ var points = [
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+ new THREE.Vector3( 100, 0, 0 ),
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+ new THREE.Vector3( 0, 100, 0 ),
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+ new THREE.Vector3( 0, 0, 100 ),
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+ new THREE.Vector3( 0, 0, 0 )
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+ ];
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+
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+ object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
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+ object.position.set( 0, 0, 0 );
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+ scene.add( object );
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+
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+ // cube
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+ var points = [
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+ new THREE.Vector3( 50, 50, 50 ),
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+ new THREE.Vector3( 50, 50, -50 ),
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+ new THREE.Vector3( -50, 50, -50 ),
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+ new THREE.Vector3( -50, 50, 50 ),
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+ new THREE.Vector3( 50, -50, 50 ),
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+ new THREE.Vector3( 50, -50, -50 ),
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+ new THREE.Vector3( -50, -50, -50 ),
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+ new THREE.Vector3( -50, -50, 50 ),
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+ ];
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+
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+ object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
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+ object.position.set( -200, 0, -200 );
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+ scene.add( object );
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+
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+ // random convex
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+ points = [];
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+ for ( var i = 0; i < 30; i++ ) {
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+ points.push( randomPointInSphere( 50 ) );
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+ }
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+
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+ object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
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+ object.position.set( -200, 0, 200 );
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+ scene.add( object );
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+
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+
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+ object = new THREE.AxisHelper();
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+ object.position.set( 200, 0, -200 );
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+ object.scale.x = object.scale.y = object.scale.z = 0.5;
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+ scene.add( object );
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+
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+ object = new THREE.ArrowHelper( new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 0, 0 ), 50 );
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+ object.position.set( 200, 0, 400 );
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+ scene.add( object );
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+
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+ renderer = new THREE.WebGLRenderer( { antialias: true } );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ container.appendChild( renderer.domElement );
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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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+ container.appendChild( stats.domElement );
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+
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+ }
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+
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+
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+ function randomPointInSphere( radius ) {
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+
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+ return new THREE.Vector3(
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+ ( Math.random() - 0.5 ) * 2 * radius,
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+ ( Math.random() - 0.5 ) * 2 * radius,
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+ ( Math.random() - 0.5 ) * 2 * radius
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+ );
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+
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+ }
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+
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+ function animate() {
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+
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+ requestAnimationFrame( animate );
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+
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+ render();
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+ stats.update();
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+
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+ }
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+
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+ function render() {
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+
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+ var timer = Date.now() * 0.0001;
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+
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+ camera.position.x = Math.cos( timer ) * 800;
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+ camera.position.z = Math.sin( timer ) * 800;
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+
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+ camera.lookAt( scene.position );
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+
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+ for ( var i = 0, l = scene.children.length; i < l; i ++ ) {
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+
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+ var object = scene.children[ i ];
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+
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+ object.rotation.x += 0.01;
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+ object.rotation.y += 0.005;
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+
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+ }
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+
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+ renderer.render( scene, camera );
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+</html>
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Xueqiao Xu