javascript
/
three.js
mirror of https://github.com/tazdij/three.js.git


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227
							
<html> 
 
<head> 
<title>Intersection: ray with mesh (through 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: 10px; 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"> 

var scene, camera, renderer, info, mouse2d, sun, loader;
var meshes = [];

var theta = 0;
var camdist = 1500;

var totalFaces = 0;
var totalColliders = 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 = camdist;
	mouse2d = new THREE.Vector3( 0, 0, 1 );
	
	loader = new THREE.JSONLoader(  );

	scene = new THREE.Scene();

	renderer = new THREE.WebGLRenderer();
	renderer.setSize( window.innerWidth, window.innerHeight );
	container.appendChild(renderer.domElement);
	
	var ambientLight = new THREE.AmbientLight( 0x606060 );
	scene.addLight( ambientLight );

	sun = new THREE.DirectionalLight( 0xffffff );
	sun.position = camera.position.clone();
	scene.addLight( sun );
	
	loadCube();

	container.onmousemove = onDocumentMouseMove;
	animate();
}

function loadCube(p) {
	var onGeometry = function( geometry ) {		
		var sx = 300;
		var sy = 240;
		var sz = 300;
		
		addCube( new THREE.Vector3(-sx,	0,	0), geometry );
		addCube( new THREE.Vector3(	0,	0,	0), geometry );
		addCube( new THREE.Vector3( sx,	0,	0), geometry );
		
		addCube( new THREE.Vector3(-sx, sy,	0), geometry );
		addCube( new THREE.Vector3(	0,  sy,	0), geometry );
		addCube( new THREE.Vector3( sx, sy,	0), geometry );
		
		addCube( new THREE.Vector3(-sx,-sy,	0), geometry );
		addCube( new THREE.Vector3(	0, -sy,	0), geometry );
		addCube( new THREE.Vector3( sx,-sy,	0), geometry );
		
		addCube( new THREE.Vector3(-sx,	0,	sz), geometry );
		addCube( new THREE.Vector3(	0,	0,	sz), geometry );
		addCube( new THREE.Vector3( sx,	0,	sz), geometry );
		
		addCube( new THREE.Vector3(-sx, sy,	sz), geometry );
		addCube( new THREE.Vector3(	0,  sy,	sz), geometry );
		addCube( new THREE.Vector3( sx, sy,	sz), geometry );
		
		addCube( new THREE.Vector3(-sx,-sy,	sz), geometry );
		addCube( new THREE.Vector3(	0, -sy,	sz), geometry );
		addCube( new THREE.Vector3( sx,-sy,	sz), geometry );
		
		addCube( new THREE.Vector3(-sx,	0,	-sz), geometry );
		addCube( new THREE.Vector3(	0,	0,	-sz), geometry );
		addCube( new THREE.Vector3( sx,	0,	-sz), geometry );
		
		addCube( new THREE.Vector3(-sx, sy,	-sz), geometry );
		addCube( new THREE.Vector3(	0,  sy,	-sz), geometry );
		addCube( new THREE.Vector3( sx, sy,	-sz), geometry );
		
		addCube( new THREE.Vector3(-sx,-sy,	-sz), geometry );
		addCube( new THREE.Vector3(	0, -sy,	-sz), geometry );
		addCube( new THREE.Vector3( sx,-sy,	-sz), geometry );
		
		addCube( new THREE.Vector3(-sx,	0,	-sz*2), geometry );
		addCube( new THREE.Vector3(	0,	0,	-sz*2), geometry );
		addCube( new THREE.Vector3( sx,	0,	-sz*2), geometry );
		
		addCube( new THREE.Vector3(-sx, sy,	-sz*2), geometry );
		addCube( new THREE.Vector3(	0,  sy,	-sz*2), geometry );
		addCube( new THREE.Vector3( sx, sy,	-sz*2), geometry );
		
		addCube( new THREE.Vector3(-sx,-sy,	-sz*2), geometry );
		addCube( new THREE.Vector3(	0, -sy,	-sz*2), geometry );
		addCube( new THREE.Vector3( sx,-sy,	-sz*2), geometry );
		
		info.innerHTML = "Total colliders: " + totalColliders + " (Faces: " + totalFaces + ")<br>";
	
	};

	
	loader.load( { model: "obj/suzanne/suzanneHi.js", callback: onGeometry } );
}

function addCube(p, g){
	totalFaces += g.faces.length;
	totalColliders++;
	var mesh = new THREE.Mesh( g, new THREE.MeshLambertMaterial( { color: 0x003300 } ) );
	mesh.position = p;
	
	//mesh.rotation.x = Math.random() * Math.PI;
	//mesh.rotation.y = Math.random() * Math.PI;
	//mesh.rotation.z = Math.random() * Math.PI;
	
	//mesh.scale.x = Math.random() + 0.5;
	//mesh.scale.y = Math.random() + 0.5;
	//mesh.scale.z = Math.random() + 0.5;
	
	scene.addObject( mesh );
	var mc = THREE.CollisionUtils.MeshColliderWBox(mesh);
	THREE.Collisions.colliders.push( mc );
	meshes.push(mesh);
}

function onDocumentMouseMove( event ) {
	event.preventDefault();	
	mouse2d.x = ( event.clientX / window.innerWidth ) * 2 - 1;
	mouse2d.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
	mouse2d.z = 1;
}

function animate() {
	requestAnimationFrame( animate );
	
	var r = new THREE.Ray();
	r.origin = mouse2d.clone();
	var matrix = camera.matrixWorld.clone();
	matrix.multiplySelf( THREE.Matrix4.makeInvert( camera.projectionMatrix ) );
	matrix.multiplyVector3( r.origin );
	r.direction = r.origin.clone().subSelf(camera.position);
	
	if(meshes.length == 0) return;
	
	for (var i = 0; i < meshes.length; i++) {
		meshes[i].materials[0].color = new THREE.Color(0x003300);
	}
	
	info.innerHTML = "";

	var c = THREE.Collisions.rayCastNearest(r);
	
	if(c) {
		//info.innerHTML += "Found @ distance " + c.distance;
		c.mesh.materials[0].color = new THREE.Color(0xbb0000);
	} else {
		//info.innerHTML += "No intersection";
	}

	camera.position.x = camdist * Math.cos(theta);
	camera.position.z = camdist * Math.sin(theta);
	camera.position.y = camdist/2 * Math.sin(theta * 2);
	sun.position = camera.position.clone();
	sun.position.normalize();
	theta += 0.005;		

	renderer.render( scene, camera );
}

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>