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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 - trackball camera</title>
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+ <meta charset="utf-8">
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+ <style type="text/css">
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+ body {
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+ color: #000;
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+ font-family:Monospace;
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+ font-size:13px;
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+ text-align:center;
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+ font-weight: bold;
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+
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+ background-color: #fff;
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+ margin: 0px;
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+ overflow: hidden;
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+ }
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+
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+ #info {
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+ color:#000;
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+ position: absolute;
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+ top: 0px; width: 100%;
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+ padding: 5px;
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+
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+ }
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+
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+ a { color: red; }
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+
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+ </style>
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+ </head>
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+
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+ <body>
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+ <div id="container"></div>
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+ <div id="info">
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+ <a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - trackball camera example</br>
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+ MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan
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+ </div>
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+
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+ <script type="text/javascript" src="../build/Three.js"></script>
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+ <script type="text/javascript" src="../src/extras/cameras/TrackballCamera.js"></script>
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+ <script type="text/javascript" src="js/Stats.js"></script>
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+
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+ <script type="text/javascript">
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+
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+ var statsEnabled = true;
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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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+ var cross;
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+
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+ init();
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+
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+ function init() {
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+
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+ // scene and camera
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+
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+ scene = new THREE.Scene();
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+ scene.fog = new THREE.FogExp2( 0xffffff, 0.002 );
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+
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+ camera = new THREE.TrackballCamera({
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+
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+ fov: 60,
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+ aspect: window.innerWidth / window.innerHeight,
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+ near: 1,
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+ far: 1e3,
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+
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+ rotateSpeed: 1.0,
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+ zoomSpeed: 1.2,
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+ panSpeed: 0.4,
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+
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+ noZoom: false,
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+ noPan: false,
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+
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+ staticMoving: false,
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+ dynamicDampingFactor: 0.3,
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+
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+ keys: [ 65, 83, 68 ]
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+
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+ });
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+
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+ camera.position.z = 500;
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+
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+ // world
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+
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+ var cube = new THREE.Cube( 20, 60, 20 );
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+
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+ cube.vertices[ 0 ].position.multiplyScalar( 0.01 );
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+ cube.vertices[ 1 ].position.multiplyScalar( 0.01 );
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+ cube.vertices[ 4 ].position.multiplyScalar( 0.01 );
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+ cube.vertices[ 5 ].position.multiplyScalar( 0.01 );
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+
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+ var material = new THREE.MeshLambertMaterial( { color:0xffffff } );
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+
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+ for( var i = 0; i < 500; i++ ) {
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+
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+ var mesh = new THREE.Mesh( cube, material );
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+ mesh.position.set(( Math.random() - 0.5 ) * 1000,
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+ ( Math.random() - 0.5 ) * 1000,
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+ ( Math.random() - 0.5 ) * 1000 );
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+
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+ mesh.updateMatrix();
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+ mesh.matrixAutoUpdate = false;
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+ scene.addChild( mesh );
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+
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+ }
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+
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+
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+ // create cross
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+
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+ /*
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+ cross = new THREE.Object3D();
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+ cross.scale.set( 0.5, 0.5, 0.5 );
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+ cross.matrixAutoUpdate = false;
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+
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+ var material = new THREE.MeshPhongMaterial( { color:0xff0000 } );
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+ var mesh = new THREE.Mesh( new THREE.Cube( 40, 5, 5 ), material );
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+ mesh.position.x = 20;
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+ cross.addChild( mesh );
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+
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+ var material = new THREE.MeshPhongMaterial( { color:0x00ff00 } );
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+ var mesh = new THREE.Mesh( new THREE.Cube( 5, 40, 5 ), material );
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+ mesh.position.y = 20;
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+ cross.addChild( mesh );
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+
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+ var material = new THREE.MeshPhongMaterial( { color:0x0000ff } );
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+ var mesh = new THREE.Mesh( new THREE.Cube( 5, 5, 40 ), material );
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+ mesh.position.z = 20;
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+
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+ cross.addChild( mesh );
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+ camera.addChild( cross );
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+ */
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+
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+
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+ // lights
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+
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+ light = new THREE.DirectionalLight( 0xffffff );
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+ light.position.set( 1, 1, 1 );
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+ scene.addChild( light );
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+
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+ light = new THREE.DirectionalLight( 0x002288 );
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+ light.position.set( -1, -1, -1 );
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+ scene.addChild( light );
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+
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+ light = new THREE.AmbientLight( 0x222222 );
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+ scene.addChild( light );
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+
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+
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+ // renderer
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+
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+ renderer = new THREE.WebGLRenderer( { antialias: false } );
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+ renderer.setClearColorHex( 0xffffff, 1 );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ container = document.getElementById( 'container' );
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+ container.appendChild( renderer.domElement );
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+
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+ if ( statsEnabled ) {
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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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+
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+ }
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+
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+ setInterval( loop, 1000 / 60 );
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+
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+ }
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+
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+
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+ function loop() {
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+
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+ /*
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+ cross.matrix.copy( camera.matrix );
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+ cross.matrix.n14 = 0;
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+ cross.matrix.n24 = 0;
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+ cross.matrix.n34 = -200;
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+ cross.matrixWorldNeedsUpdate = true;
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+ */
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+
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+ renderer.render( scene, camera );
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+
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+ if ( statsEnabled ) stats.update();
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+
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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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Eberhard Gräther