mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-12-24 12:03:48 +01:00
204 lines
4.7 KiB
HTML
204 lines
4.7 KiB
HTML
|
<!DOCTYPE html>
|
||
|
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>three.js canvas - particles - sprites</title>
|
||
|
|
<meta charset="utf-8">
|
||
|
|
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
|
||
|
|
<style>
|
||
|
|
body {
|
||
|
|
background-color: #000000;
|
||
|
|
margin: 0px;
|
||
|
|
overflow: hidden;
|
||
|
|
}
|
||
|
|
|
||
|
|
a {
|
||
|
|
color:#0078ff;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
|
||
|
|
<script src="../build/three.min.js"></script>
|
||
|
|
|
||
|
|
<script src="js/renderers/Projector.js"></script>
|
||
|
|
<script src="js/renderers/CanvasRenderer.js"></script>
|
||
|
|
|
||
|
|
<script src="js/libs/stats.min.js"></script>
|
||
|
|
<script src="js/libs/tween.min.js"></script>
|
||
|
|
|
||
|
|
<script>
|
||
|
|
|
||
|
|
var container, stats;
|
||
|
|
var camera, scene, renderer, particle;
|
||
|
|
var mouseX = 0, mouseY = 0;
|
||
|
|
|
||
|
|
var windowHalfX = window.innerWidth / 2;
|
||
|
|
var windowHalfY = window.innerHeight / 2;
|
||
|
|
|
||
|
|
init();
|
||
|
|
animate();
|
||
|
|
|
||
|
|
function init() {
|
||
|
|
|
||
|
|
container = document.createElement( 'div' );
|
||
|
|
document.body.appendChild( container );
|
||
|
|
|
||
|
|
camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 5000 );
|
||
|
|
camera.position.z = 1000;
|
||
|
|
|
||
|
|
scene = new THREE.Scene();
|
||
|
|
|
||
|
|
var material = new THREE.SpriteMaterial( {
|
||
|
|
map: new THREE.Texture( generateSprite() ),
|
||
|
|
blending: THREE.AdditiveBlending
|
||
|
|
} );
|
||
|
|
|
||
|
|
for ( var i = 0; i < 1000; i++ ) {
|
||
|
|
|
||
|
|
particle = new THREE.Sprite( material );
|
||
|
|
|
||
|
|
initParticle( particle, i * 10 );
|
||
|
|
|
||
|
|
scene.add( particle );
|
||
|
|
}
|
||
|
|
|
||
|
|
renderer = new THREE.CanvasRenderer();
|
||
|
|
renderer.setClearColor( 0x000040 );
|
||
|
|
renderer.setPixelRatio( window.devicePixelRatio );
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
container.appendChild( renderer.domElement );
|
||
|
|
|
||
|
|
stats = new Stats();
|
||
|
|
stats.domElement.style.position = 'absolute';
|
||
|
|
stats.domElement.style.top = '0px';
|
||
|
|
container.appendChild( stats.domElement );
|
||
|
|
|
||
|
|
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
|
||
|
|
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
|
||
|
|
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
window.addEventListener( 'resize', onWindowResize, false );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function onWindowResize() {
|
||
|
|
|
||
|
|
windowHalfX = window.innerWidth / 2;
|
||
|
|
windowHalfY = window.innerHeight / 2;
|
||
|
|
|
||
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
||
|
|
camera.updateProjectionMatrix();
|
||
|
|
|
||
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function generateSprite() {
|
||
|
|
|
||
|
|
var canvas = document.createElement( 'canvas' );
|
||
|
|
canvas.width = 16;
|
||
|
|
canvas.height = 16;
|
||
|
|
|
||
|
|
var context = canvas.getContext( '2d' );
|
||
|
|
var gradient = context.createRadialGradient( canvas.width / 2, canvas.height / 2, 0, canvas.width / 2, canvas.height / 2, canvas.width / 2 );
|
||
|
|
gradient.addColorStop( 0, 'rgba(255,255,255,1)' );
|
||
|
|
gradient.addColorStop( 0.2, 'rgba(0,255,255,1)' );
|
||
|
|
gradient.addColorStop( 0.4, 'rgba(0,0,64,1)' );
|
||
|
|
gradient.addColorStop( 1, 'rgba(0,0,0,1)' );
|
||
|
|
|
||
|
|
context.fillStyle = gradient;
|
||
|
|
context.fillRect( 0, 0, canvas.width, canvas.height );
|
||
|
|
|
||
|
|
return canvas;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function initParticle( particle, delay ) {
|
||
|
|
|
||
|
|
var particle = this instanceof THREE.Sprite ? this : particle;
|
||
|
|
var delay = delay !== undefined ? delay : 0;
|
||
|
|
|
||
|
|
particle.position.set( 0, 0, 0 )
|
||
|
|
particle.scale.x = particle.scale.y = Math.random() * 32 + 16;
|
||
|
|
|
||
|
|
new TWEEN.Tween( particle )
|
||
|
|
.delay( delay )
|
||
|
|
.to( {}, 10000 )
|
||
|
|
.onComplete( initParticle )
|
||
|
|
.start();
|
||
|
|
|
||
|
|
new TWEEN.Tween( particle.position )
|
||
|
|
.delay( delay )
|
||
|
|
.to( { x: Math.random() * 4000 - 2000, y: Math.random() * 1000 - 500, z: Math.random() * 4000 - 2000 }, 10000 )
|
||
|
|
.start();
|
||
|
|
|
||
|
|
new TWEEN.Tween( particle.scale )
|
||
|
|
.delay( delay )
|
||
|
|
.to( { x: 0, y: 0 }, 10000 )
|
||
|
|
.start();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
|
||
|
|
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 animate() {
|
||
|
|
|
||
|
|
requestAnimationFrame( animate );
|
||
|
|
|
||
|
|
render();
|
||
|
|
stats.update();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function render() {
|
||
|
|
|
||
|
|
TWEEN.update();
|
||
|
|
|
||
|
|
camera.position.x += ( mouseX - camera.position.x ) * 0.05;
|
||
|
|
camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
|
||
|
|
camera.lookAt( scene.position );
|
||
|
|
|
||
|
|
renderer.render( scene, camera );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
</script>
|
||
|
|
</body>
|
||
|
|
</html>
|