mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-13 15:05:56 +10:00
alteredq
548c331519
As expected, performance of one-to-one conversion from CanvasRenderer was horrible, so I had to change a bit how lines are handled.
Line object now has "type" property:
- default type is "THREE.LineContinuous" which should behave as before: geometry represents one continuous line (v0 ... vn)
- new option is "THREE.LinePieces" which tells renderer that geometry represents collection of individual line segments (v0,v1) ... (vn-1, vn)
(one Line object corresponds to one VBO)
(same limitations as with meshes - once VBO is baked, no changes are possible except object transforms - scale / rotation / position)
233 lines
5.3 KiB
HTML
233 lines
5.3 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js - lines - spheres - webgl</title>
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<meta charset="utf-8">
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<style type="text/css">
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body {
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background-color: #000;
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margin: 0px;
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overflow: hidden;
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}
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a {
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color:#0078ff;
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}
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#info {
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position: absolute;
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top: 10px; width: 100%;
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color: #ffffff;
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padding: 5px;
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font-family: Monospace;
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font-size: 13px;
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text-align: center;
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z-index:100;
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}
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#oldie {
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font-family:monospace;
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font-size:13px;
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text-align:center;
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background:rgb(50,0,0);
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color:#fff;
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padding:1em;
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width:475px;
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margin:5em auto 0;
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display:none;
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}
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a {
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color: #ff0080;
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text-decoration: none;
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}
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a:hover {
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color: #0080ff;
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}
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</style>
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</head>
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<body>
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<div id="info">
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<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - lines WebGL demo
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</div>
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<center>
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<div id="oldie">
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Sorry, your browser doesn't support <a href="http://khronos.org/webgl/wiki/Getting_a_WebGL_Implementation">WebGL</a>.<br/>
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<br/>
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Please try in
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<a href="http://www.chromium.org/getting-involved/dev-channel">Chrome 9+</a> /
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<a href="http://www.mozilla.com/en-US/firefox/all-beta.html">Firefox 4+</a> /
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<a href="http://nightly.webkit.org/">Safari OSX 10.6+</a>
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</div>
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</center>
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<script type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="js/Stats.js"></script>
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<script type="text/javascript">
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if ( !is_browser_compatible() ) {
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document.getElementById( "oldie" ).style.display = "block";
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}
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var SCREEN_WIDTH = window.innerWidth,
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SCREEN_HEIGHT = window.innerHeight,
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r = 450,
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mouseX = 0, mouseY = 0,
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windowHalfX = window.innerWidth / 2,
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windowHalfY = window.innerHeight / 2,
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camera, scene, renderer,
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stats;
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init();
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setInterval( loop, 1000 / 60 );
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function init() {
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var container;
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container = document.createElement('div');
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document.body.appendChild(container);
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camera = new THREE.Camera( 80, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 3000 );
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camera.position.z = 1000;
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scene = new THREE.Scene();
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var i, line, vector1, vector2, material, p,
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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 ],
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[ 3.0, 0xaaaaaa, 0.75, 2 ], [ 3.5, 0xffffff, 0.5, 1 ], [ 4.5, 0xffffff, 0.25, 1 ], [ 5.5, 0xffffff, 0.125, 1 ] ],
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geometry = new THREE.Geometry();
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for ( i = 0; i < 1500; ++i ) {
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vector1 = new THREE.Vector3( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
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vector1.normalize();
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vector1.multiplyScalar( r );
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vector2 = vector1.clone();
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vector2.multiplyScalar( Math.random() * 0.09 + 1 );
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geometry.vertices.push( new THREE.Vertex( vector1 ) );
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geometry.vertices.push( new THREE.Vertex( vector2 ) );
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}
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for( i = 0; i < parameters.length; ++i ) {
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p = parameters[ i ];
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material = new THREE.LineBasicMaterial( { color: p[ 1 ], opacity: p[ 2 ], linewidth: p[ 3 ] } );
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line = new THREE.Line( geometry, material, THREE.LinePieces );
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line.scale.x = line.scale.y = line.scale.z = p[ 0 ];
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line.originalScale = p[ 0 ];
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line.rotation.y = Math.random() * Math.PI;
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line.updateMatrix();
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scene.addObject( line );
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}
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renderer = new THREE.WebGLRenderer();
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renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
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container.appendChild(renderer.domElement);
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/*
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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container.appendChild(stats.domElement);
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*/
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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}
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function onDocumentMouseMove(event) {
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mouseX = event.clientX - windowHalfX;
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mouseY = event.clientY - windowHalfY;
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}
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function onDocumentTouchStart( event ) {
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if(event.touches.length > 1) {
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event.preventDefault();
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mouseX = event.touches[ 0 ].pageX - windowHalfX;
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mouseY = event.touches[ 0 ].pageY - windowHalfY;
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}
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}
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function onDocumentTouchMove( event ) {
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if(event.touches.length == 1) {
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event.preventDefault();
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mouseX = event.touches[ 0 ].pageX - windowHalfX;
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mouseY = event.touches[ 0 ].pageY - windowHalfY;
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}
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}
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//
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function loop() {
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//camera.position.x += ( mouseX - camera.position.x ) * .05;
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camera.position.y += ( - mouseY + 200 - camera.position.y ) * .05;
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camera.updateMatrix();
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renderer.render( scene, camera );
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var time = new Date().getTime() * 0.0001;
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for( var i = 0; i<scene.objects.length; i++ ) {
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scene.objects[i].rotation.y = time * ( i < 4 ? i+1 : - (i+1) );
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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 ) );
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}
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//stats.update();
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}
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function is_browser_compatible() {
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// WebGL support
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try { var test = new Float32Array(1); } catch(e) { return false; }
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return true;
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}
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</script>
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</body>
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</html>
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