mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-12-25 04:23:47 +01:00
133 lines
3.1 KiB
HTML
133 lines
3.1 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - trails</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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body {
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background:#000;
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padding:0;
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margin:0;
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font-weight: bold;
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overflow:hidden;
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}
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</style>
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</head>
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<body>
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<script src="../build/three.min.js"></script>
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<script src="js/libs/stats.min.js"></script>
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<script>
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var container, stats;
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var camera, scene, renderer;
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var mouseX = 0, mouseY = 0;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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init();
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animate();
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 10000 );
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camera.position.set( 100000, 0, 3200 );
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scene = new THREE.Scene();
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var colors = [ 0x000000, 0xff0080, 0x8000ff, 0xffffff ];
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var geometry = new THREE.Geometry();
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for ( var i = 0; i < 2000; i ++ ) {
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var vertex = new THREE.Vector3();
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vertex.x = Math.random() * 4000 - 2000;
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vertex.y = Math.random() * 4000 - 2000;
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vertex.z = Math.random() * 4000 - 2000;
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geometry.vertices.push( vertex );
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geometry.colors.push( new THREE.Color( colors[ Math.floor( Math.random() * colors.length ) ] ) );
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}
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var material = new THREE.PointCloudMaterial( { size: 1, vertexColors: THREE. VertexColors, depthTest: false, opacity: 0.5, sizeAttenuation: false, transparent: true } );
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var mesh = new THREE.PointCloud( geometry, material );
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scene.add( mesh );
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renderer = new THREE.WebGLRenderer( { preserveDrawingBuffer: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.sortObjects = false;
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renderer.autoClearColor = false;
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container.appendChild( renderer.domElement );
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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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stats.domElement.style.zIndex = 100;
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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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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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windowHalfX = window.innerWidth / 2;
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windowHalfY = window.innerHeight / 2;
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function onDocumentMouseMove(event) {
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mouseX = ( event.clientX - windowHalfX ) * 10;
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mouseY = ( event.clientY - windowHalfY ) * 10;
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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camera.position.x += ( mouseX - camera.position.x ) * .05;
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camera.position.y += ( - mouseY - camera.position.y ) * .05;
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camera.lookAt( scene.position );
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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