javascript
/
three.js
zrcadlo https://github.com/tazdij/three.js.git


			
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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.js"></script>
		<script src="js/Detector.js"></script>
		<script src="js/Stats.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 );

				scene = new THREE.Scene();

				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 2000 );
				camera.position.y = 400;
				scene.add( camera );

				var light, object, materials;

				scene.add( new THREE.AmbientLight( 0x404040 ) );

				light = new THREE.DirectionalLight( 0xffffff );
				light.position.set( 0, 1, 0 );
				scene.add( light );

				materials = [
					new THREE.MeshLambertMaterial( { ambient: 0xbbbbbb, map: THREE.ImageUtils.loadTexture( 'textures/ash_uvgrid01.jpg' ) } ),
					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();
				object.position.set( 200, 0, -200 );
				object.scale.x = object.scale.y = object.scale.z = 0.5;
				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 );

			}


			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 += 0.01;
					object.rotation.y += 0.005;

				}

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>