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


			
				
					
						
						
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							<!DOCTYPE HTML>
<html lang="en">
	<head>
		<title>three.js - lines - spheres - webgl</title>
		<meta charset="utf-8">
		<style type="text/css">
			body {
				background-color: #000;
				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;
			}
			
			a {
				color: #ff0080;
				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
		</div>

		<script type="text/javascript" src="../build/ThreeExtras.js"></script>
		<script type="text/javascript" src="js/Stats.js"></script>
		
		<script type="text/javascript">
		
			if ( ! THREE.Detector.webgl ) THREE.Detector.addGetWebGLMessage();

			window.onload = init;
			
			var SCREEN_WIDTH = window.innerWidth,
				SCREEN_HEIGHT = window.innerHeight,

			r = 450,
			
			mouseX = 0, mouseY = 0,

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

			camera, scene, renderer,

			stats;

			function init() {

				var container;

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

				camera = new THREE.Camera( 80, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 3000 );
				camera.position.z = 1000;

				scene = new THREE.Scene();
				
				var i, line, vector1, vector2, material, p,
					parameters = [ [ 0.25, 0xff7700, 1, 2 ], [ 0.5, 0xff9900, 1, 1 ], [ 0.75, 0xffaa00, 0.75, 1 ], [ 1, 0xffaa00, 0.5, 1 ], [ 1.25, 0x000833, 0.8, 1 ],
							       [ 3.0, 0xaaaaaa, 0.75, 2 ], [ 3.5, 0xffffff, 0.5, 1 ], [ 4.5, 0xffffff, 0.25, 1 ], [ 5.5, 0xffffff, 0.125, 1 ] ],
					
					geometry = new THREE.Geometry();
				
				
				for ( i = 0; i < 1500; ++i ) {

					vector1 = new THREE.Vector3( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
					vector1.normalize();
					vector1.multiplyScalar( r );

					vector2 = vector1.clone();
					vector2.multiplyScalar( Math.random() * 0.09 + 1 );

					geometry.vertices.push( new THREE.Vertex( vector1 ) );
					geometry.vertices.push( new THREE.Vertex( vector2 ) );
					
				}

				for( i = 0; i < parameters.length; ++i ) {
					
					p = parameters[ i ];
					
					material = new THREE.LineBasicMaterial( { color: p[ 1 ], opacity: p[ 2 ], linewidth: p[ 3 ] } );

					line = new THREE.Line( geometry, material, THREE.LinePieces );
					line.scale.x = line.scale.y = line.scale.z = p[ 0 ];
					line.originalScale = p[ 0 ];
					line.rotation.y = Math.random() * Math.PI;
					line.updateMatrix();
					scene.addObject( line );

				}

				renderer = new THREE.WebGLRenderer();
				renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
				container.appendChild(renderer.domElement);
				
				/*
				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 );
				
				loop();
				
			}

			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() {

				requestAnimationFrame( loop, renderer.domElement );
				
				//camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY + 200 - camera.position.y ) * .05;
				camera.updateMatrix();

				renderer.render( scene, camera );

				var time = new Date().getTime() * 0.0001;

				for( var i = 0; i<scene.objects.length; i++ ) {
				
					scene.objects[i].rotation.y = time * ( i < 4 ? i+1 : - (i+1) );

					if ( i < 5 ) scene.objects[i].scale.x = scene.objects[i].scale.y = scene.objects[i].scale.z = scene.objects[i].originalScale * (i/5+1) * (1 + 0.5 * Math.sin( 7*time ) );
					
				}
				
				//stats.update();
				 
			}
			

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