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Snow2.html
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Snow2.html
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<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="js/ThreeCanvas.js"></script>
<script type="text/javascript" src="js/Snow.js"></script>
<script type="text/javascript">
var SCREEN_WIDTH = window.innerWidth;
var SCREEN_HEIGHT = window.innerHeight;
var container;
var particle;
var camera;
var scene;
var renderer;
var mouseX = 0;
var mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var particles = [];
var particleImage = new Image();//THREE.ImageUtils.loadTexture( "img/ParticleSmoke.png" );
particleImage.src = 'images/ParticleSmoke.png';
function init() {
container = document.createElement('div');
document.body.appendChild(container);
camera = new THREE.PerspectiveCamera(75, SCREEN_WIDTH / SCREEN_HEIGHT, 1, 10000);
camera.position.z = 1000;
scene = new THREE.Scene();
scene.add(camera);
renderer = new THREE.CanvasRenderer();
renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
var material = new THREE.ParticleBasicMaterial({ map: new THREE.Texture(particleImage) });
for (var i = 0; i < 500; i++) {
particle = new Particle3D(material);
particle.position.x = Math.random() * 3000 - 1000;
particle.position.y = Math.random() * 3000 - 1000;
particle.position.z = Math.random() * 2000 - 1000;
particle.scale.x = particle.scale.y = 1;
scene.add(particle);
particles.push(particle);
}
container.appendChild(renderer.domElement);
document.addEventListener('mousemove', onDocumentMouseMove, false);
document.addEventListener('touchstart', onDocumentTouchStart, false);
document.addEventListener('touchmove', onDocumentTouchMove, false);
setInterval(loop, 1500 / 60);
}
function onDocumentMouseMove(event) {
mouseX = event.clientX - windowHalfX;
mouseY = event.clientY - windowHalfY;
}
function onDocumentTouchStart(event) {
if (event.touches.length == 1) {
event.preventDefault();
mouseX = event.touches[0].pageX - windowHalfX;
mouseY = event.touches[0].pageY - windowHalfY;
}
}
function onDocumentTouchMove(event) {
if (event.touches.length == 1) {
event.preventDefault();
mouseX = event.touches[0].pageX - windowHalfX;
mouseY = event.touches[0].pageY - windowHalfY;
}
}
//
function loop() {
for (var i = 0; i < particles.length; i++) {
var particle = particles[i];
particle.updatePhysics();
with (particle.position) {
if (y < -1000) y += 2000;
if (x > 1000) x -= 2000;
else if (x < -1000) x += 2000;
if (z > 1000) z -= 2000;
else if (z < -1000) z += 2000;
}
}
camera.position.x += (mouseX - camera.position.x) * 0.01;
camera.position.y += (- mouseY - camera.position.y) * 0.01;
camera.lookAt(scene.position);
renderer.render(scene, camera);
}
</script>
</head>
</html>