mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-13 23:16:07 +10:00
167 lines
3.4 KiB
HTML
167 lines
3.4 KiB
HTML
<html>
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<head>
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<title>three.js webgl - intersection: ray with box</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<style type="text/css">
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body {
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font-family: Monospace;
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background-color: #f0f0f0;
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margin: 0px;
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overflow: hidden;
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}
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#oldie { background-color: #ddd !important }
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#info {
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position: absolute;
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top: 30px; left: 150px; width: 800px;
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color: #000000;
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padding: 5px;
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font-family: Monospace;
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font-size: 13px;
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text-align: left;
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z-index:100;
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}
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#options {
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position: absolute;
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top: 10px; left: 10px; width: 800px;
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color: #000000;
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padding: 5px;
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font-family: Monospace;
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font-size: 13px;
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text-align: left;
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z-index:100;
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}
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</style>
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<script type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
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<script type="text/javascript" src="js/Stats.js"></script>
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<script type="text/javascript">
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var scene, camera, renderer, info, mouse2d, sun, cube;
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var bounce = 0;
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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info = document.getElementById("info");
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camera = new THREE.Camera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
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camera.position.z = -500;
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mouse2d = new THREE.Vector3( 0, 0, 1 );
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scene = new THREE.Scene();
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renderer = new THREE.WebGLRenderer();
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild(renderer.domElement);
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var ambientLight = new THREE.AmbientLight( 0x606060 );
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scene.addLight( ambientLight );
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sun = new THREE.DirectionalLight( 0xffffff );
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sun.position = camera.position.clone();
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scene.addLight( sun );
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createCube( 200, new THREE.Vector3( 0,0,0 ) );
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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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container.onmousemove = onDocumentMouseMove;
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animate();
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}
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function createCube( s, p ) {
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cube = new THREE.Mesh (
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new THREE.CubeGeometry( s, s, s ),
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new THREE.MeshLambertMaterial( { color: 0x003300 } )
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);
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cube.position = p;
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scene.addObject( cube );
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THREE.Collisions.colliders.push( THREE.CollisionUtils.MeshOBB( cube ) );
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};
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function onDocumentMouseMove( event ) {
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event.preventDefault();
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mouse2d.x = ( event.clientX / window.innerWidth ) * 2 - 1;
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mouse2d.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
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mouse2d.z = 1;
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};
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function animate() {
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requestAnimationFrame( animate );
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var r = new THREE.Ray();
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r.origin.copy( mouse2d );
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var matrix = camera.matrixWorld.clone();
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matrix.multiplySelf( THREE.Matrix4.makeInvert( camera.projectionMatrix ) );
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matrix.multiplyVector3( r.origin );
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r.direction = r.origin.clone().subSelf( camera.position );
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info.innerHTML = "";
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var c = THREE.Collisions.rayCastNearest( r );
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if( c ) {
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info.innerHTML += "Found @ distance " + c.distance.toFixed(2);
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c.mesh.materials[ 0 ].color.setHex( 0xaa0000 );
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} else {
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info.innerHTML += "No intersection";
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cube.materials[0].color.setHex( 0x003300 );
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}
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cube.rotation.x += 0.01;
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cube.rotation.y += 0.02;
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cube.position.x = Math.sin(bounce) * 100;
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bounce += 0.01;
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renderer.render( scene, camera );
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stats.update();
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};
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function vts(v) {
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if(!v) return "undefined<br>";
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else return v.x + " , " + v.y + " , " + v.z + "<br>";
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};
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</script>
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</head>
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<body onload="init();">
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<div id="info"></div>
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<div id="options"></div>
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</body>
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</html>
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