--- /dev/null
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <title>three.js webgl - performance</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 {
+ background:#fff;
+ padding:0;
+ margin:0;
+ font-weight: bold;
+ overflow:hidden;
+ }
+ </style>
+ </head>
+ <body>
+
+ <script src="../build/three.js"></script>
+ <script src="js/libs/stats.min.js"></script>
+
+ <script>
+
+ var container, stats;
+
+ var camera, scene, renderer;
+
+ var objects;
+
+ var mouseX = 0, mouseY = 0;
+
+ var windowHalfX = window.innerWidth / 2;
+ var windowHalfY = window.innerHeight / 2;
+
+ document.addEventListener( 'mousemove', onDocumentMouseMove, false );
+
+ init();
+ animate();
+
+
+ function init() {
+
+ container = document.createElement( 'div' );
+ document.body.appendChild( container );
+
+ camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 10000 );
+ camera.position.z = 3200;
+
+ scene = new THREE.Scene();
+ scene.background = new THREE.Color( 0xffffff );
+
+ objects = [];
+
+ var material = new THREE.MeshNormalMaterial();
+
+ var loader = new THREE.BufferGeometryLoader();
+ loader.load( 'models/json/suzanne.json', function ( geometry ) {
+
+ geometry.computeVertexNormals();
+
+ for ( var i = 0; i < 5000; i ++ ) {
+
+ var mesh = new THREE.Mesh( geometry, material );
+
+ mesh.position.x = Math.random() * 8000 - 4000;
+ mesh.position.y = Math.random() * 8000 - 4000;
+ mesh.position.z = Math.random() * 8000 - 4000;
+ mesh.rotation.x = Math.random() * 2 * Math.PI;
+ mesh.rotation.y = Math.random() * 2 * Math.PI;
+ mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 50 + 100;
+
+ objects.push( mesh );
+
+ scene.add( mesh );
+
+ }
+
+ } );
+
+ renderer = new THREE.WebGLRenderer();
+ renderer.setPixelRatio( window.devicePixelRatio );
+ renderer.setSize( window.innerWidth, window.innerHeight );
+ container.appendChild( renderer.domElement );
+
+ stats = new Stats();
+ container.appendChild( stats.dom );
+
+ //
+
+ window.addEventListener( 'resize', onWindowResize, false );
+
+ }
+
+ function onWindowResize() {
+
+ windowHalfX = window.innerWidth / 2;
+ windowHalfY = window.innerHeight / 2;
+
+ camera.aspect = window.innerWidth / window.innerHeight;
+ camera.updateProjectionMatrix();
+
+ renderer.setSize( window.innerWidth, window.innerHeight );
+
+ }
+
+ function onDocumentMouseMove(event) {
+
+ mouseX = ( event.clientX - windowHalfX ) * 10;
+ mouseY = ( event.clientY - windowHalfY ) * 10;
+
+ }
+
+ //
+
+ function animate() {
+
+ requestAnimationFrame( animate );
+
+ render();
+ stats.update();
+
+ }
+
+ function render() {
+
+ camera.position.x += ( mouseX - camera.position.x ) * .05;
+ camera.position.y += ( - mouseY - camera.position.y ) * .05;
+ camera.lookAt( scene.position );
+
+ for ( var i = 0, il = objects.length; i < il; i ++ ) {
+
+ objects[ i ].rotation.x += 0.01;
+ objects[ i ].rotation.y += 0.02;
+
+ }
+
+ renderer.render( scene, camera );
+
+ }
+
+ </script>
+
+ </body>
+</html>
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