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- <html>
- <head>
- <title>three.js webgl - intersection: ray with box</title>
- <meta http-equiv="content-type" content="text/html; charset=utf-8">
- <style type="text/css">
- body {
- font-family: Monospace;
- background-color: #f0f0f0;
- margin: 0px;
- overflow: hidden;
- }
- #oldie { background-color: #ddd !important }
- #info {
- position: absolute;
- top: 30px; left: 150px; width: 800px;
- color: #000000;
- padding: 5px;
- font-family: Monospace;
- font-size: 13px;
- text-align: left;
- z-index:100;
- }
- #options {
- position: absolute;
- top: 10px; left: 10px; width: 800px;
- color: #000000;
- padding: 5px;
- font-family: Monospace;
- font-size: 13px;
- text-align: left;
- z-index:100;
- }
- </style>
- <script type="text/javascript" src="../build/Three.js"></script>
- <script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
- <script type="text/javascript" src="js/Stats.js"></script>
- <script type="text/javascript">
- var camera, scene, projector, renderer,
- info, mouse = { x: 0, y: 0 }, sun, cube;
- var bounce = 0;
- function init() {
- container = document.createElement( 'div' );
- document.body.appendChild( container );
- info = document.getElementById("info");
- camera = new THREE.Camera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
- camera.position.z = -500;
- scene = new THREE.Scene();
- projector = new THREE.Projector();
- renderer = new THREE.WebGLRenderer();
- renderer.setSize( window.innerWidth, window.innerHeight );
- container.appendChild(renderer.domElement);
- var ambientLight = new THREE.AmbientLight( 0x606060 );
- scene.add( ambientLight );
- sun = new THREE.DirectionalLight( 0xffffff );
- sun.position = camera.position.clone();
- scene.add( sun );
- createCube( 200, new THREE.Vector3( 0,0,0 ) );
- stats = new Stats();
- stats.domElement.style.position = 'absolute';
- stats.domElement.style.top = '0px';
- container.appendChild( stats.domElement );
- container.onmousemove = onDocumentMouseMove;
- animate();
- }
- function createCube( s, p ) {
- cube = new THREE.Mesh (
- new THREE.CubeGeometry( s, s, s ),
- new THREE.MeshLambertMaterial( { color: 0x003300 } )
- );
- cube.position = p;
- scene.add( cube );
- THREE.Collisions.colliders.push( THREE.CollisionUtils.MeshOBB( cube ) );
- };
- function onDocumentMouseMove( event ) {
- event.preventDefault();
- mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
- mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
- };
- function animate() {
- requestAnimationFrame( animate );
- info.innerHTML = "";
- var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
- projector.unprojectVector( vector, camera );
- var ray = new THREE.Ray( camera.position, vector.subSelf( camera.position ).normalize() );
- var c = THREE.Collisions.rayCastNearest( ray );
- if ( c ) {
- info.innerHTML += "Found @ distance " + c.distance.toFixed(2);
- c.mesh.materials[ 0 ].color.setHex( 0xaa0000 );
- } else {
- info.innerHTML += "No intersection";
- cube.materials[0].color.setHex( 0x003300 );
- }
- cube.rotation.x += 0.01;
- cube.rotation.y += 0.02;
- cube.position.x = Math.sin(bounce) * 100;
- bounce += 0.01;
- renderer.render( scene, camera );
- stats.update();
- };
- function vts(v) {
- if(!v) return "undefined<br>";
- else return v.x + " , " + v.y + " , " + v.z + "<br>";
- };
- </script>
- </head>
- <body onload="init();">
- <div id="info"></div>
- <div id="options"></div>
- </body>
- </html>
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