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webgl_geometry_convex.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - convex geometry</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
font-family: Monospace;
background-color: #000;
margin: 0px;
overflow: hidden;
}
</style>
</head>
<body>
<script src="../build/three.min.js"></script>
<script src="js/Detector.js"></script>
<script src="js/libs/stats.min.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, scene, renderer;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.y = 400;
scene = new THREE.Scene();
var light, object, materials;
scene.add( new THREE.AmbientLight( 0x404040 ) );
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 0, 1, 0 );
scene.add( light );
var map = THREE.ImageUtils.loadTexture( 'textures/ash_uvgrid01.jpg' );
map.wrapS = map.wrapT = THREE.RepeatWrapping;
map.anisotropy = 16;
materials = [
new THREE.MeshLambertMaterial( { ambient: 0xbbbbbb, map: map } ),
new THREE.MeshBasicMaterial( { color: 0xffffff, wireframe: true, transparent: true, opacity: 0.1 } )
];
// tetrahedron
var points = [
new THREE.Vector3( 100, 0, 0 ),
new THREE.Vector3( 0, 100, 0 ),
new THREE.Vector3( 0, 0, 100 ),
new THREE.Vector3( 0, 0, 0 )
];
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
object.position.set( 0, 0, 0 );
scene.add( object );
// cube
var points = [
new THREE.Vector3( 50, 50, 50 ),
new THREE.Vector3( 50, 50, -50 ),
new THREE.Vector3( -50, 50, -50 ),
new THREE.Vector3( -50, 50, 50 ),
new THREE.Vector3( 50, -50, 50 ),
new THREE.Vector3( 50, -50, -50 ),
new THREE.Vector3( -50, -50, -50 ),
new THREE.Vector3( -50, -50, 50 ),
];
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
object.position.set( -200, 0, -200 );
scene.add( object );
// random convex
points = [];
for ( var i = 0; i < 30; i ++ ) {
points.push( randomPointInSphere( 50 ) );
}
object = THREE.SceneUtils.createMultiMaterialObject( new THREE.ConvexGeometry( points ), materials );
object.position.set( -200, 0, 200 );
scene.add( object );
object = new THREE.AxisHelper( 50 );
object.position.set( 200, 0, -200 );
scene.add( object );
object = new THREE.ArrowHelper( new THREE.Vector3( 0, 1, 0 ), new THREE.Vector3( 0, 0, 0 ), 50 );
object.position.set( 200, 0, 400 );
scene.add( object );
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild( stats.domElement );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function randomPointInSphere( radius ) {
return new THREE.Vector3(
( Math.random() - 0.5 ) * 2 * radius,
( Math.random() - 0.5 ) * 2 * radius,
( Math.random() - 0.5 ) * 2 * radius
);
}
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
var timer = Date.now() * 0.0001;
camera.position.x = Math.cos( timer ) * 800;
camera.position.z = Math.sin( timer ) * 800;
camera.lookAt( scene.position );
for ( var i = 0, l = scene.children.length; i < l; i ++ ) {
var object = scene.children[ i ];
object.rotation.x = timer * 5;
object.rotation.y = timer * 2.5;
}
renderer.render( scene, camera );
}
</script>
</body>
</html>