mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-26 15:34:57 +01:00
346 lines
8.6 KiB
HTML
Executable File
346 lines
8.6 KiB
HTML
Executable File
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js canvas - particles with shapes</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 {
|
|
font-family: Monospace;
|
|
background-color: #f0f0f0;
|
|
margin: 0px;
|
|
overflow: hidden;
|
|
}
|
|
</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 src="js/Sparks.js"></script>
|
|
|
|
<!-- load the font file from canvas-text -->
|
|
|
|
<script src="fonts/helvetiker_regular.typeface.js"></script>
|
|
|
|
|
|
<script>
|
|
|
|
var container, stats;
|
|
|
|
var camera, scene, renderer;
|
|
|
|
var group, text, plane;
|
|
|
|
var targetRotation = 0;
|
|
var targetRotationOnMouseDown = 0;
|
|
|
|
var mouseX = 0;
|
|
var mouseXOnMouseDown = 0;
|
|
|
|
var windowHalfX = window.innerWidth / 2;
|
|
var windowHalfY = window.innerHeight / 2;
|
|
|
|
var heartShape, particleCloud, sparksEmitter, emitterPos;
|
|
var _rotation = 0;
|
|
var timeOnShapePath = 0;
|
|
|
|
init();
|
|
animate();
|
|
|
|
function init() {
|
|
|
|
container = document.createElement( 'div' );
|
|
document.body.appendChild( container );
|
|
|
|
var info = document.createElement( 'div' );
|
|
info.style.position = 'absolute';
|
|
info.style.top = '10px';
|
|
info.style.width = '100%';
|
|
info.style.textAlign = 'center';
|
|
info.innerHTML = 'Three.js with Love. Simple Particle Systems with Shapes by <a href="http://www.lab4games.net/zz85/blog">zz85</a><br>Move your mouse.';
|
|
container.appendChild( info );
|
|
|
|
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
|
|
camera.position.set( 0, 150, 700 );
|
|
|
|
scene = new THREE.Scene();
|
|
|
|
group = new THREE.Group();
|
|
scene.add( group );
|
|
|
|
// Get text from hash
|
|
|
|
var string = "THREE.JS";
|
|
var hash = document.location.hash.substr( 1 );
|
|
|
|
if ( hash.length !== 0 ) {
|
|
|
|
string = hash;
|
|
|
|
}
|
|
|
|
var text3d = new THREE.TextGeometry( string, {
|
|
|
|
size: 80,
|
|
height: 20,
|
|
curveSegments: 2,
|
|
font: "helvetiker"
|
|
|
|
});
|
|
|
|
text3d.computeBoundingBox();
|
|
var centerOffset = -0.5 * ( text3d.boundingBox.max.x - text3d.boundingBox.min.x );
|
|
|
|
var textMaterial = new THREE.MeshBasicMaterial( { color: Math.random() * 0xffffff, overdraw: 0.5 } );
|
|
|
|
text = new THREE.Mesh( text3d, textMaterial );
|
|
|
|
// Potentially, we can extract the vertices or faces of the text to generate particles too.
|
|
// Geo > Vertices > Position
|
|
|
|
text.position.x = centerOffset;
|
|
text.position.y = 100;
|
|
text.position.z = 0;
|
|
|
|
text.rotation.x = 0;
|
|
text.rotation.y = Math.PI * 2;
|
|
|
|
group.add( text );
|
|
|
|
|
|
particleCloud = new THREE.Object3D(); // Just a group
|
|
particleCloud.y = 800;
|
|
group.add( particleCloud );
|
|
|
|
// Create Particle Systems
|
|
|
|
// Heart
|
|
|
|
var x = 0, y = 0;
|
|
|
|
heartShape = new THREE.Shape();
|
|
|
|
heartShape.moveTo( x + 25, y + 25 );
|
|
heartShape.bezierCurveTo( x + 25, y + 25, x + 20, y, x, y );
|
|
heartShape.bezierCurveTo( x - 30, y, x - 30, y + 35,x - 30,y + 35 );
|
|
heartShape.bezierCurveTo( x - 30, y + 55, x - 10, y + 77, x + 25, y + 95 );
|
|
heartShape.bezierCurveTo( x + 60, y + 77, x + 80, y + 55, x + 80, y + 35 );
|
|
heartShape.bezierCurveTo( x + 80, y + 35, x + 80, y, x + 50, y );
|
|
heartShape.bezierCurveTo( x + 35, y, x + 25, y + 25, x + 25, y + 25 );
|
|
|
|
var hue = 0;
|
|
|
|
var hearts = function ( context ) {
|
|
|
|
context.globalAlpha = 0.5;
|
|
var x = 0, y = 0;
|
|
context.scale(0.05, -0.05); // Scale so canvas render can redraw within bounds
|
|
context.beginPath();
|
|
// From http://blog.burlock.org/html5/130-paths
|
|
context.bezierCurveTo( x + 2.5, y + 2.5, x + 2.0, y, x, y );
|
|
context.bezierCurveTo( x - 3.0, y, x - 3.0, y + 3.5,x - 3.0,y + 3.5 );
|
|
context.bezierCurveTo( x - 3.0, y + 5.5, x - 1.0, y + 7.7, x + 2.5, y + 9.5 );
|
|
context.bezierCurveTo( x + 6.0, y + 7.7, x + 8.0, y + 5.5, x + 8.0, y + 3.5 );
|
|
context.bezierCurveTo( x + 8.0, y + 3.5, x + 8.0, y, x + 5.0, y );
|
|
context.bezierCurveTo( x + 3.5, y, x + 2.5, y + 2.5, x + 2.5, y + 2.5 );
|
|
context.fill();
|
|
context.lineWidth = 0.5; //0.05
|
|
context.stroke();
|
|
|
|
}
|
|
|
|
var setTargetParticle = function() {
|
|
|
|
var material = new THREE.SpriteCanvasMaterial( {
|
|
program: hearts
|
|
} );
|
|
|
|
material.color.setHSL(hue, 1, 0.75);
|
|
hue += 0.001;
|
|
if (hue>1) hue-=1;
|
|
|
|
particle = new THREE.Sprite( material );
|
|
|
|
particle.scale.x = particle.scale.y = Math.random() * 40 + 40;
|
|
particleCloud.add( particle );
|
|
|
|
return particle;
|
|
|
|
};
|
|
|
|
var onParticleCreated = function( p ) {
|
|
|
|
p.target.position.copy( p.position );
|
|
|
|
};
|
|
|
|
var onParticleDead = function( particle ) {
|
|
|
|
particle.target.visible = false;
|
|
particleCloud.remove( particle.target );
|
|
|
|
};
|
|
|
|
sparksEmitter = new SPARKS.Emitter(new SPARKS.SteadyCounter(160));
|
|
|
|
emitterpos = new THREE.Vector3();
|
|
|
|
sparksEmitter.addInitializer(new SPARKS.Position( new SPARKS.PointZone( emitterpos ) ) );
|
|
sparksEmitter.addInitializer(new SPARKS.Lifetime(0,2));
|
|
sparksEmitter.addInitializer(new SPARKS.Target(null, setTargetParticle));
|
|
|
|
sparksEmitter.addInitializer(new SPARKS.Velocity(new SPARKS.PointZone(new THREE.Vector3(0,-50,10))));
|
|
|
|
// TOTRY Set velocity to move away from centroid
|
|
|
|
sparksEmitter.addAction(new SPARKS.Age());
|
|
//sparksEmitter.addAction(new SPARKS.Accelerate(0.2));
|
|
sparksEmitter.addAction(new SPARKS.Move());
|
|
sparksEmitter.addAction(new SPARKS.RandomDrift(50,50,2000));
|
|
|
|
sparksEmitter.addCallback("created", onParticleCreated);
|
|
sparksEmitter.addCallback("dead", onParticleDead);
|
|
sparksEmitter.addCallback("updated", function( particle ) {
|
|
|
|
particle.target.position.copy( particle.position );
|
|
|
|
});
|
|
|
|
sparksEmitter.start();
|
|
|
|
// End Particles
|
|
|
|
|
|
renderer = new THREE.CanvasRenderer();
|
|
renderer.setClearColor( 0xf0f0f0 );
|
|
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( 'mousedown', onDocumentMouseDown, 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 );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
|
|
|
|
function onDocumentMouseDown( event ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseXOnMouseDown = event.clientX - windowHalfX;
|
|
targetRotationOnMouseDown = targetRotation;
|
|
|
|
if ( sparksEmitter.isRunning() ) {
|
|
|
|
sparksEmitter.stop();
|
|
|
|
} else {
|
|
|
|
sparksEmitter.start();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onDocumentMouseMove( event ) {
|
|
|
|
mouseX = event.clientX - windowHalfX;
|
|
|
|
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
|
|
|
|
}
|
|
|
|
function onDocumentTouchStart( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
|
|
targetRotationOnMouseDown = targetRotation;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function onDocumentTouchMove( event ) {
|
|
|
|
if ( event.touches.length == 1 ) {
|
|
|
|
event.preventDefault();
|
|
|
|
mouseX = event.touches[ 0 ].pageX - windowHalfX;
|
|
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
requestAnimationFrame( animate );
|
|
|
|
render();
|
|
stats.update();
|
|
|
|
}
|
|
|
|
function render() {
|
|
|
|
timeOnShapePath += 0.0337;
|
|
|
|
if (timeOnShapePath > 1) timeOnShapePath -= 1;
|
|
|
|
// TODO Create a PointOnShape Action/Zone in the particle engine
|
|
var pointOnShape = heartShape.getPointAt( timeOnShapePath );
|
|
|
|
emitterpos.x = pointOnShape.x * 5 - 100;
|
|
emitterpos.y = -pointOnShape.y * 5 + 400;
|
|
|
|
// Pretty cool effect if you enable this
|
|
// particleCloud.rotation.y += 0.05;
|
|
|
|
group.rotation.y += ( targetRotation - group.rotation.y ) * 0.05;
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
</script>
|
|
|
|
</body>
|
|
</html>
|