mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
153 lines
3.5 KiB
HTML
153 lines
3.5 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js webgl - sprites</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:#fff;
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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 type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="js/RequestAnimationFrame.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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var container, stats;
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var camera, scene, renderer;
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var group;
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var time = 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.Camera( 60, window.innerWidth / window.innerHeight, 1, 10000 );
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camera.position.z = 1500;
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scene = new THREE.Scene();
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// create sprites
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var amount = 200;
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var radius = 500;
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var mapA = THREE.ImageUtils.loadTexture( "textures/sprite0.png" );
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var mapB = THREE.ImageUtils.loadTexture( "textures/sprite1.png" );
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group = new THREE.Object3D();
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for( var a = 0; a < amount; a++ ) {
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var sprite = new THREE.Sprite( { map: mapA, useScreenCoordinates: false } );
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sprite.position.set( Math.random() - 0.5,
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Math.random() - 0.5,
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Math.random() - 0.5 );
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if( sprite.position.z < 0 ) {
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sprite.map = mapB;
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}
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sprite.position.normalize();
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sprite.position.multiplyScalar( radius );
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group.addChild( sprite );
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}
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scene.addChild( group );
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// add 2d-sprites
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sprite = new THREE.Sprite( { map: mapA, alignment:THREE.SpriteAlignment.topLeft } );
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sprite.position.set( 100, 100, 0 );
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sprite.opacity = 0.25;
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scene.addChild( sprite );
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sprite = new THREE.Sprite( { map: mapA, alignment:THREE.SpriteAlignment.topLeft } );
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sprite.position.set( 150, 150, 2 );
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sprite.opacity = 0.5;
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scene.addChild( sprite );
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sprite = new THREE.Sprite( { map: mapA, alignment:THREE.SpriteAlignment.topLeft } );
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sprite.position.set( 200, 200, 3 );
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sprite.opacity = 1;
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scene.addChild( sprite );
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// renderer
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renderer = new THREE.WebGLRenderer();
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renderer.setClearColorHex( 0x000000, 1 );
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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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stats.domElement.style.zIndex = 100;
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container.appendChild( stats.domElement );
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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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for ( var c = 0; c < group.children.length; c++ ) {
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var sprite = group.children[ c ];
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var scale = Math.sin( time + sprite.position.x * 0.01 ) * 0.3 + 1.0;
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sprite.rotation += 0.1 * ( c / group.children.length );
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sprite.scale.set( scale, scale, 1.0 );
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sprite.opacity = Math.sin( time + sprite.position.x * 0.01 ) * 0.4 + 0.6;
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}
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group.rotation.x = time * 0.5;
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group.rotation.y = time * 0.75;
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group.rotation.z = time * 1.0;
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time += 0.02;
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renderer.render( scene, camera );
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}
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function log( text ) {
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var e = document.getElementById("log");
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e.innerHTML = text + "<br/>" + e.innerHTML;
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}
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</script>
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</body>
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</html>
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