three.proton
Version:
three.Proton is an easily customizable html5 particle engine for three.js
176 lines (152 loc) • 5.4 kB
HTML
<html>
<head>
<title>three.proton - helloworld</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style type="text/css">
body {
font-family: Monospace;
background-color: #fff;
margin: 0;
padding: 0;
overflow: hidden;
}
</style>
</head>
<body>
<div id="container"></div>
<script src="../lib/stats.min.js"></script>
<script src="../lib/three.min.js"></script>
<script src="../build/three.proton.min.js"></script>
<script src="./js/lib/TrackballControls.js"></script>
<script>
var proton, emitter;
var camera, scene, renderer, stats, clock, spring, controls;
init();
function init() {
addScene();
addControls();
addLights();
addStars();
addProton();
//addInteraction();
addStats();
animate();
}
function addScene() {
camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 1, 1000);
camera.position.z = 500;
scene = new THREE.Scene();
scene.fog = new THREE.Fog(0xffffff, 1, 10000);
clock = new THREE.Clock();
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
window.addEventListener('resize', onWindowResize, false);
}
function addControls() {
controls = new THREE.TrackballControls(camera);
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.noZoom = false;
controls.noPan = false;
controls.staticMoving = true;
controls.dynamicDampingFactor = 0.3;
}
function addLights() {
var ambientLight = new THREE.AmbientLight(0x101010);
scene.add(ambientLight);
var pointLight = new THREE.PointLight(0xffffff, 2, 1000, 1);
pointLight.position.set(0, 200, 200);
scene.add(pointLight);
}
function addStats() {
stats = new Stats();
stats.showPanel(0);
stats.dom.style.position = 'absolute';
stats.dom.style.left = '0px';
stats.dom.style.top = '0px';
container.appendChild(stats.dom);
}
function addStars() {
var geometry = new THREE.Geometry();
for (var i = 0; i < 10000; i++) {
var vertex = new THREE.Vector3();
vertex.x = THREE.Math.randFloatSpread(2000);
vertex.y = THREE.Math.randFloatSpread(2000);
vertex.z = THREE.Math.randFloatSpread(2000);
geometry.vertices.push(vertex);
}
var particles = new THREE.Points(geometry, new THREE.PointsMaterial({
color: 0x888888
}));
scene.add(particles);
}
function addProton() {
proton = new Proton();
proton.addEmitter(createEmitter());
proton.addRender(new Proton.SpriteRender(scene));
}
function createSprite() {
var map = new THREE.TextureLoader().load("./img/dot.png");
var material = new THREE.SpriteMaterial({
map: map,
color: 0xff0000,
blending: THREE.AdditiveBlending,
fog: true
});
return new THREE.Sprite(material);
}
function createEmitter() {
emitter = new Proton.Emitter();
emitter.rate = new Proton.Rate(new Proton.Span(10, 15), new Proton.Span(.05, .1));
emitter.addInitialize(new Proton.Body(createSprite()));
emitter.addInitialize(new Proton.Mass(1));
emitter.addInitialize(new Proton.Life(1, 3));
emitter.addInitialize(new Proton.Position(new Proton.SphereZone(20)));
emitter.addInitialize(new Proton.V(new Proton.Span(500, 800), new Proton.Vector3D(0, 1, 0), 30));
emitter.addBehaviour(new Proton.RandomDrift(10, 10, 10, .05));
//emitter.addBehaviour(new Proton.Alpha(1, 0.1));
emitter.addBehaviour(new Proton.Scale(new Proton.Span(2, 3.5), 0));
emitter.addBehaviour(new Proton.G(6));
emitter.addBehaviour(new Proton.Color('#FF0026', ['#ffff00', '#ffff11'], Infinity, Proton.easeOutSine));
emitter.p.x = 0;
emitter.p.y = -150;
emitter.emit();
return emitter;
}
function addInteraction() {
window.addEventListener('mousemove', onMouseMove, false);
var pos = {
x: 0,
y: 0
};
function onMouseMove(event) {
pos.x = event.clientX;
pos.y = event.clientY;
var target = Proton.THREEUtil.toSpacePos(pos, camera, renderer.domElement);
emitter.p.x += (target.x - emitter.p.x) / 10;
emitter.p.y += (target.y - emitter.p.y) / 10;
emitter.p.z += (target.z - emitter.p.z) / 10;
}
}
function animate() {
stats.begin();
requestAnimationFrame(animate);
render();
stats.end();
}
function render() {
proton.update(clock.getDelta());
renderer.render(scene, camera);
controls.update();
Proton.Debug.renderInfo(proton, 3);
}
function onWindowResize() {
}
</script>
</body>
</html>