mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
165 lines
3.6 KiB
HTML
165 lines
3.6 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<title>three.js webgl - intersection: ray with box</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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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 src="../build/Three.js"></script>
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<script src="js/RequestAnimationFrame.js"></script>
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<script src="js/Stats.js"></script>
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<script>
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var camera, scene, projector, renderer,
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info, mouse = { x: 0, y: 0 }, 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.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 10000 );
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camera.position.z = - 500;
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scene = new THREE.Scene();
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projector = new THREE.Projector();
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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.add( ambientLight );
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sun = new THREE.DirectionalLight( 0xffffff );
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sun.position = camera.position.clone();
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scene.add( 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.add( 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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mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
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mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
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};
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function animate() {
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requestAnimationFrame( animate );
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info.innerHTML = "";
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var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
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projector.unprojectVector( vector, camera );
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var ray = new THREE.Ray( camera.position, vector.subSelf( camera.position ).normalize() );
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var c = THREE.Collisions.rayCastNearest( ray );
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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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camera.lookAt( scene.position );
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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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