mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 13:06:01 +10:00
217 lines
7.9 KiB
HTML
217 lines
7.9 KiB
HTML
<html>
|
|
<head>
|
|
<title>Intersection: ray with sphere/AABB/plane</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;
|
|
|
|
var theta = 0;
|
|
var camdist = 1500;
|
|
var geoms = [];
|
|
|
|
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);
|
|
mouse2d = new THREE.Vector3(0, 0, 1);
|
|
|
|
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);
|
|
scene.addLight(sun);
|
|
|
|
//makeWall(480);
|
|
//makeWall(360);
|
|
makeWall(240);
|
|
makeWall(120);
|
|
makeWall(0);
|
|
makeWall(-120);
|
|
makeWall(-240);
|
|
//makeWall(-360);
|
|
//makeWall(-480);
|
|
|
|
plane = new THREE.Mesh(new Plane(30000, 30000, 10, 10), new THREE.MeshLambertMaterial({
|
|
color: 0x003300
|
|
}));
|
|
plane.position.y = -480;
|
|
plane.rotation.x = Math.PI / -2;
|
|
scene.addObject(plane);
|
|
geoms.push(plane);
|
|
|
|
var cplane = new THREE.PlaneCollider(plane.position, new THREE.Vector3(0, 1, 0));
|
|
cplane.mesh = plane;
|
|
THREE.Collisions.colliders.push(cplane);
|
|
|
|
container.onmousemove = onDocumentMouseMove;
|
|
animate();
|
|
}
|
|
|
|
function makeWall(z){
|
|
var mx = 120 * 2;
|
|
for (var i = -mx; i <= mx; i += 120) {
|
|
for (var j = -mx; j <= mx; j += 120) {
|
|
if (Math.random() > 0.5)
|
|
createCube(100, new THREE.Vector3(j, i, z));
|
|
else
|
|
createSphere(50, new THREE.Vector3(j, i, z));
|
|
}
|
|
}
|
|
}
|
|
|
|
function createCube(s, p){
|
|
var cube = new THREE.Mesh(new Cube(s, s, s, 1, 1, 1), new THREE.MeshLambertMaterial({
|
|
color: 0x003300
|
|
}));
|
|
cube.position = p;
|
|
scene.addObject(cube);
|
|
geoms.push(cube);
|
|
THREE.Collisions.colliders.push(THREE.CollisionUtils.MeshAABB(cube, p));
|
|
}
|
|
|
|
function createSphere(rad, p){
|
|
var sphere = new THREE.Mesh(new Sphere(rad, 10, 10), new THREE.MeshLambertMaterial({
|
|
color: 0x003300
|
|
}));
|
|
sphere.position = p;
|
|
scene.addObject(sphere);
|
|
geoms.push(sphere);
|
|
|
|
var sc = new THREE.SphereCollider(p, rad);
|
|
sc.mesh = sphere;
|
|
THREE.Collisions.colliders.push(sc);
|
|
}
|
|
|
|
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);
|
|
|
|
for (var i = 0; i < geoms.length; i++) {
|
|
geoms[i].materials[0].color = new THREE.Color(0x007700);
|
|
}
|
|
|
|
if (!document.getElementById("nearest").checked) {
|
|
// Raycast all
|
|
ts = new Date().getTime();
|
|
var cs = THREE.Collisions.rayCastAll(r);
|
|
tt = new Date().getTime() - ts;
|
|
if (cs.length > 0) {
|
|
info.innerHTML = cs.length + " colliders found in " + tt;
|
|
for (var i = 0; i < cs.length; i++) {
|
|
cs[i].mesh.materials[0].color = new THREE.Color(0xaa0000);
|
|
}
|
|
}
|
|
else {
|
|
info.innerHTML = "No intersection";
|
|
}
|
|
}
|
|
else {
|
|
// Raycast nearest
|
|
ts = new Date().getTime();
|
|
var c = THREE.Collisions.rayCastNearest(r);
|
|
tt = new Date().getTime() - ts;
|
|
if (c) {
|
|
info.innerHTML = "Found in " + tt + " @ distance " + c.distance;
|
|
c.mesh.materials[0].color = new THREE.Color(0xaa0000);
|
|
}
|
|
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">
|
|
<input type="checkbox" id="nearest" checked/> Nearest collider only
|
|
<br/>
|
|
</div>
|
|
</body>
|
|
</html>
|