mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-12-23 19:43:48 +01:00
194 lines
4.2 KiB
HTML
194 lines
4.2 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 canvas - particles - waves</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-color: #000000;
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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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</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/renderers/Projector.js"></script>
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<script src="js/renderers/CanvasRenderer.js"></script>
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<script src="js/libs/stats.min.js"></script>
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<script>
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var SEPARATION = 100, AMOUNTX = 50, AMOUNTY = 50;
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var container, stats;
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var camera, scene, renderer;
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var particles, particle, count = 0;
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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( 75, window.innerWidth / window.innerHeight, 1, 10000 );
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camera.position.z = 1000;
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scene = new THREE.Scene();
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particles = new Array();
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var PI2 = Math.PI * 2;
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var material = new THREE.SpriteCanvasMaterial( {
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color: 0xffffff,
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program: function ( context ) {
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context.beginPath();
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context.arc( 0, 0, 0.5, 0, PI2, true );
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context.fill();
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}
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} );
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var i = 0;
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for ( var ix = 0; ix < AMOUNTX; ix ++ ) {
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for ( var iy = 0; iy < AMOUNTY; iy ++ ) {
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particle = particles[ i ++ ] = new THREE.Sprite( material );
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particle.position.x = ix * SEPARATION - ( ( AMOUNTX * SEPARATION ) / 2 );
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particle.position.z = iy * SEPARATION - ( ( AMOUNTY * SEPARATION ) / 2 );
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scene.add( particle );
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}
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}
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renderer = new THREE.CanvasRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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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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container.appendChild( stats.domElement );
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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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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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//
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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 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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var i = 0;
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for ( var ix = 0; ix < AMOUNTX; ix ++ ) {
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for ( var iy = 0; iy < AMOUNTY; iy ++ ) {
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particle = particles[ i++ ];
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particle.position.y = ( Math.sin( ( ix + count ) * 0.3 ) * 50 ) +
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( Math.sin( ( iy + count ) * 0.5 ) * 50 );
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particle.scale.x = particle.scale.y = ( Math.sin( ( ix + count ) * 0.3 ) + 1 ) * 4 +
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( Math.sin( ( iy + count ) * 0.5 ) + 1 ) * 4;
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}
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}
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renderer.render( scene, camera );
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count += 0.1;
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}
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</script>
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</body>
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</html>
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