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


			
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js - lines - cubes - webgl</title>
		<meta charset="utf-8">
		<style type="text/css">
			body {
				background-color: #000000;
				margin: 0px;
				overflow: hidden;
			}

			a {
				color:#0078ff;
			}
			
			#info {
				position: absolute;
				top: 10px; width: 100%;
				color: #ffffff;
				padding: 5px;
				font-family: Monospace;
				font-size: 13px;
				text-align: center;
				z-index:100;
			}

			#oldie {
				font-family:monospace;
				font-size:13px;

				text-align:center;
				background:rgb(50,0,0);
				color:#fff;
				padding:1em;

				width:475px;
				margin:5em auto 0;

				display:none;
			}
			
			a {
				color: orange;
				text-decoration: none;
			}

			a:hover {
				color: #0080ff;
			}
			
		</style>
	</head>
	<body>
	
		<div id="info">
			<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - lines WebGL demo 
			[<a href="http://en.wikipedia.org/wiki/Hilbert_curve">Hilbert curve</a> thanks to <a href="http://www.openprocessing.org/visuals/?visualID=15599">Thomas Diewald</a>]
		</div>

		<center>
		<div id="oldie">
			Sorry, your browser doesn't support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation">WebGL</a>.<br/>
			<br/>
			Please try in
			<a href="http://www.chromium.org/getting-involved/dev-channel">Chrome 9+</a> /
			<a href="http://www.mozilla.com/en-US/firefox/all-beta.html">Firefox 4+</a> /
			<a href="http://nightly.webkit.org/">Safari OSX 10.6+</a>
		</div>
		</center>


		<script type="text/javascript" src="../build/Three.js"></script>
		<script type="text/javascript" src="js/Stats.js"></script>

		<script type="text/javascript">
		
			if ( !is_browser_compatible() ) {

				document.getElementById( "oldie" ).style.display = "block";

			}

			var mouseX = 0, mouseY = 0,

			windowHalfX = window.innerWidth / 2,
			windowHalfY = window.innerHeight / 2,

			camera, scene, renderer,

			stats;

			init();
			setInterval( loop, 1000 / 60 );

			function init() {

				var i, material, container;

				container = document.createElement('div');
				document.body.appendChild(container);

				camera = new THREE.Camera( 33, window.innerWidth / window.innerHeight, 1, 10000 );
				camera.position.z = 700;

				scene = new THREE.Scene();

				renderer = new THREE.WebGLRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				var geometry = new THREE.Geometry(),
					points = hilbert3D( new THREE.Vector3( 0,0,0 ), 200.0, 4, 0, 1, 2, 3, 4, 5, 6, 7 );

				for ( i = 0; i < points.length; i ++ ) {
				
					geometry.vertices.push( new THREE.Vertex( points[i] ) );
				
				}
				

				// lines

				var line, p, scale = 0.3, d = 125, c1 = 0x553300, c2 = 0x555555, c3 = 0x992800, g1 = geometry,
					m1 = new THREE.LineBasicMaterial( { color: c1, opacity: 1, blending: THREE.AdditiveBlending } ),
					m2 = new THREE.LineBasicMaterial( { color: c2, opacity: 1, blending: THREE.AdditiveBlending } ),
					m3 = new THREE.LineBasicMaterial( { color: c3, opacity: 1, blending: THREE.AdditiveBlending } ),
					parameters = [ [ m3, scale*0.5, [0,0,0],  g1 ], [ m2, scale*0.5, [d, 0, 0],  g1 ], [ m2, scale*0.5, [-d, 0, 0],  g1 ],
								   [ m2, scale*0.5, [0,d,0],  g1 ], [ m2, scale*0.5, [d, d, 0],  g1 ], [ m2, scale*0.5, [-d, d, 0],  g1 ],
								   [ m2, scale*0.5, [0,-d,0], g1 ], [ m2, scale*0.5, [d, -d, 0], g1 ], [ m2, scale*0.5, [-d, -d, 0], g1 ],
								   
								   [ m1, scale*0.5, [2*d, 0, 0],  g1 ], [ m1, scale*0.5, [-2*d, 0, 0],  g1 ],
								   [ m1, scale*0.5, [2*d, d, 0],  g1 ], [ m1, scale*0.5, [-2*d, d, 0],  g1 ],
								   [ m1, scale*0.5, [2*d, -d, 0], g1 ], [ m1, scale*0.5, [-2*d, -d, 0], g1 ],
								   ];
				
				for ( i = 0; i < parameters.length; ++i ) {
				
					p = parameters[ i ];
					line = new THREE.Line( p[ 3 ],  p[ 0 ] );
					line.scale.x = line.scale.y = line.scale.z =  p[ 1 ];
					line.position.x = p[ 2 ][ 0 ];
					line.position.y = p[ 2 ][ 1 ];
					line.position.z = p[ 2 ][ 2 ];
					scene.addObject( line );
					
				}

				/*
				stats = new Stats();
				stats.domElement.style.position = 'absolute';
				stats.domElement.style.top = '0px';
				container.appendChild(stats.domElement);
				*/

				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'touchstart', onDocumentTouchStart, false );
				document.addEventListener( 'touchmove', onDocumentTouchMove, false );
			}

			// port of Processing Java code by Thomas Diewald
			// http://www.openprocessing.org/visuals/?visualID=15599
			
			function hilbert3D( center, side, iterations, v0, v1, v2, v3, v4, v5, v6, v7 ) {
			
				var half = side/2,
					
					vec_s = [
			  
					new THREE.Vector3( center.x - half, center.y + half, center.z - half ),
					new THREE.Vector3( center.x - half, center.y + half, center.z + half ),
					new THREE.Vector3( center.x - half, center.y - half, center.z + half ),
					new THREE.Vector3( center.x - half, center.y - half, center.z - half ),
					new THREE.Vector3( center.x + half, center.y - half, center.z - half ),
					new THREE.Vector3( center.x + half, center.y - half, center.z + half ),
					new THREE.Vector3( center.x + half, center.y + half, center.z + half ),
					new THREE.Vector3( center.x + half, center.y + half, center.z - half )
				
					],
  
					vec = [ vec_s[ v0 ], vec_s[ v1 ], vec_s[ v2 ], vec_s[ v3 ], vec_s[ v4 ], vec_s[ v5 ], vec_s[ v6 ], vec_s[ v7 ] ];

				if( --iterations >= 0 ) {
			
					var tmp = [];
					
					tmp = tmp.concat( hilbert3D ( vec[ 0 ], half, iterations, v0, v3, v4, v7, v6, v5, v2, v1 ) );
					tmp = tmp.concat( hilbert3D ( vec[ 1 ], half, iterations, v0, v7, v6, v1, v2, v5, v4, v3 ) );
					tmp = tmp.concat( hilbert3D ( vec[ 2 ], half, iterations, v0, v7, v6, v1, v2, v5, v4, v3 ) ); 
					tmp = tmp.concat( hilbert3D ( vec[ 3 ], half, iterations, v2, v3, v0, v1, v6, v7, v4, v5 ) );
					tmp = tmp.concat( hilbert3D ( vec[ 4 ], half, iterations, v2, v3, v0, v1, v6, v7, v4, v5 ) ); 
					tmp = tmp.concat( hilbert3D ( vec[ 5 ], half, iterations, v4, v3, v2, v5, v6, v1, v0, v7 ) );
					tmp = tmp.concat( hilbert3D ( vec[ 6 ], half, iterations, v4, v3, v2, v5, v6, v1, v0, v7 ) );
					tmp = tmp.concat( hilbert3D ( vec[ 7 ], half, iterations, v6, v5, v2, v1, v0, v3, v4, v7 ) );
					
					return tmp;
					
				}
			
				return vec;
			}
			
			//

			function onDocumentMouseMove(event) {

				mouseX = event.clientX - windowHalfX;
				mouseY = event.clientY - windowHalfY;
			}

			function onDocumentTouchStart( event ) {

				if ( event.touches.length > 1 ) {

					event.preventDefault();

					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;
				}
			}

			function onDocumentTouchMove( event ) {

				if ( event.touches.length == 1 ) {

					event.preventDefault();

					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;
				}
			}

			//

			function loop() {

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY + 200 - camera.position.y ) * .05;
				camera.updateMatrix();

				var time = new Date().getTime() * 0.0015;
				
				for( var i = 0; i<scene.objects.length; i++ ) {
				
					scene.objects[i].rotation.y = time * ( i % 2 ? 1 : -1);
					
				}

				renderer.render(scene, camera);

				//stats.update();
			}

			function is_browser_compatible() {

				// WebGL support

				try { var test = new Float32Array(1); } catch(e) { return false; }

				return true;

			}

		</script>
	</body>
</html>