javascript
/
three.js
镜像来自 https://github.com/tazdij/three.js.git


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230
							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js software - lines - splines</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 {
				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;
			}

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

			a:hover {
				color: #0080ff;
			}

		</style>
	</head>
	<body>

		<div id="info">
			<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - splines Software 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>

		<script src="../build/three.js"></script>

		<script src="js/geometries/hilbert3D.js"></script>

		<script src="js/libs/stats.min.js"></script>
		<script src="js/renderers/Projector.js"></script>
		<script src="js/renderers/SoftwareRenderer.js"></script>

		<script>

			var mouseX = 0, mouseY = 0,

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

				camera, scene, renderer, material, stats;

			init();
			animate();

			function init() {

				var i, container;

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

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

				scene = new THREE.Scene();

				renderer = new THREE.SoftwareRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );

				container.appendChild( renderer.domElement );

				var geometry = new THREE.Geometry(),
					geometry2 = new THREE.Geometry(),
					geometry3 = new THREE.Geometry(),
					points = hilbert3D( new THREE.Vector3(), 200.0, 1, 0, 1, 2, 3, 4, 5, 6, 7 ),
					colors = [], colors2 = [], colors3 = [];

				var subdivisions = 6;

				var spline = new THREE.CatmullRomCurve3( points );
				var point = new THREE.Vector3();

				for ( i = 0; i < points.length * subdivisions; i ++ ) {

					var t = i / ( points.length * subdivisions );
					geometry.vertices[ i ] = spline.getPoint( t );

					colors[ i ] = new THREE.Color( 0xffffff );
					colors[ i ].setHSL( 0.6, 1.0, Math.max( 0, - point.x / 200 ) + 0.5 );

					colors2[ i ] = new THREE.Color( 0xffffff );
					colors2[ i ].setHSL( 0.9, 1.0, Math.max( 0, - point.y / 200 ) + 0.5 );

					colors3[ i ] = new THREE.Color( 0xffffff );
					colors3[ i ].setHSL( i / ( points.length * subdivisions ), 1.0, 0.5 );

				}

				geometry2.vertices = geometry3.vertices = geometry.vertices;

				geometry.colors = colors;
				geometry2.colors = colors2;
				geometry3.colors = colors3;

				// lines

				material = new THREE.LineBasicMaterial( { color: 0xffffff, opacity: 1, linewidth: 3, vertexColors: THREE.VertexColors } );

				var line, p, scale = 0.3, d = 225;
				var parameters = [
					[ material, scale * 1.5, [ - d, 0, 0 ], geometry ],
					[ material, scale * 1.5, [ 0, 0, 0 ], geometry2 ],
					[ material, scale * 1.5, [ d, 0, 0 ], geometry3 ]
				];

				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.add( line );

				}

				stats = new Stats();

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

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

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

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			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 animate() {

				requestAnimationFrame( animate );
				render();

			}

			function render() {

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

				camera.lookAt( scene.position );

				var time = Date.now() * 0.0005;

				for ( var i = 0; i < scene.children.length; i ++ ) {

					var object = scene.children[ i ];

					if ( object instanceof THREE.Line ) {

						object.rotation.y = time * ( i % 2 ? 1 : - 1 );

					}

				}

				renderer.render( scene, camera );

			}


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