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misc_camera_trackball.html
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<!doctype html>
<html lang="en">
<head>
<title>three.js webgl - trackball camera</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 {
color: #000;
font-family:Monospace;
font-size:13px;
text-align:center;
font-weight: bold;
background-color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
color:#000;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a { color: red; }
</style>
</head>
<body>
<div id="container"></div>
<div id="info">
<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - trackball camera example</br>
MOVE mouse & press LEFT/A: rotate, MIDDLE/S: zoom, RIGHT/D: pan
</div>
<script src="../build/Three.js"></script>
<script src="js/Detector.js"></script>
<script src="js/RequestAnimationFrame.js"></script>
<script src="js/Stats.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, controls, scene, renderer;
var cross;
init();
animate();
function init() {
// scene and camera
scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0xffffff, 0.002 );
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.z = 500;
controls = new THREE.TrackballControls( camera );
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.noZoom = false;
controls.noPan = false;
controls.staticMoving = true;
controls.dynamicDampingFactor = 0.3;
controls.keys = [ 65, 83, 68 ];
// world
var cube = new THREE.CubeGeometry( 20, 60, 20 );
cube.vertices[ 0 ].position.multiplyScalar( 0.01 );
cube.vertices[ 1 ].position.multiplyScalar( 0.01 );
cube.vertices[ 4 ].position.multiplyScalar( 0.01 );
cube.vertices[ 5 ].position.multiplyScalar( 0.01 );
var material = new THREE.MeshLambertMaterial( { color: 0xffffff } );
for( var i = 0; i < 500; i ++ ) {
var mesh = new THREE.Mesh( cube, material );
mesh.position.set(( Math.random() - 0.5 ) * 1000,
( Math.random() - 0.5 ) * 1000,
( Math.random() - 0.5 ) * 1000 );
mesh.updateMatrix();
mesh.matrixAutoUpdate = false;
scene.add( mesh );
}
// lights
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 1, 1, 1 );
scene.add( light );
light = new THREE.DirectionalLight( 0x002288 );
light.position.set( -1, -1, -1 );
scene.add( light );
light = new THREE.AmbientLight( 0x222222 );
scene.add( light );
// renderer
renderer = new THREE.WebGLRenderer( { antialias: false } );
renderer.setClearColorHex( 0xffffff, 1 );
renderer.setSize( window.innerWidth, window.innerHeight );
container = document.getElementById( 'container' );
container.appendChild( renderer.domElement );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
}
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
controls.update();
renderer.render( scene, camera );
}
</script>
</body>
</html>