three.quarks

three.quarks is a high-performance javascript particle system based visual effect library for threejs written in modern TypeScript.

Links

• Demo
• Change Log
• Sandbox Example

Background

three.quarks is a high-performance general-purpose particle system library with a WYSIWYG visual editor three.quarks-editor for it. It runs on top of the well-known WebGL library called three.js.

Features

• Group Particle System
• Batch Render Multiple Particle System (reduce draw calls) - BatchedParticleRenderer
• Emission Shape and Control
• Plugin System - Plugin
  • Customizable Behaviors
  • Customizable Emitter Shape
• 4 Type of renderer
  • BillBoard
  • Stretched BillBoard
  • Mesh Renderer
  • Trail Renderer TrailBatch
• Spawn Particle on Mesh Surface
• Configuable RenderMode and BlendMode
• 1D Bézier curve function for adjusting
• Texture Atlas Animation
• User Extension and Customization
• A realtime editor to test and create visual effects three.quarks-editor
• VFX json load and save

three.quarks computes most particles information on CPU, and it uses customized shader , instancing, batch technique to render those particles with as less draw call as possible. three.quarks supports 1 dimension piecewise Bézier curves for the customizable transform visual effect. Most importantly, developers can customize how the particle system works by adding their own Behavior.

Examples

Launch Examples

yarn example

Check examples folder

Add particle system to the scene

const clock = new THREE.Clock();
const batchSystem = new BatchedParticleRenderer();
const texture = new TextureLoader().load("atlas.png");
// Particle system configuration
const muzzle = {
 duration: 1,
 looping: false,
 startLife: new IntervalValue(0.1, 0.2),
 startSpeed: new ConstantValue(0),
 startSize: new IntervalValue(1, 5),
 startColor: new ConstantColor(new THREE.Vector4(1, 1, 1, 1)),
 worldSpace: false,

 maxParticle: 5,
 emissionOverTime: new ConstantValue(0),
 emissionBursts: [{
  time: 0,
  count: 1,
  cycle: 1,
  interval: 0.01,
  probability: 1,
 }],

 shape: new PointEmitter(),
 texture: texture,
 blending: AdditiveBlending,
 startTileIndex: 91,
 uTileCount: 10,
 vTileCount: 10,
 renderOrder: 2,
 renderMode: RenderMode.LocalSpace
};

// Create particle system based on your configuration
muzzle1 = new ParticleSystem(batchSystem, {muzzle});
// developers can customize how the particle system works by 
// using existing behavior or adding their own Behavior.
muzzle1.addBehavior(new ColorOverLife(new ColorRange(new THREE.Vector4(1, 0.3882312, 0.125, 1), new THREE.Vector4(1, 0.826827, 0.3014706, 1))));
muzzle1.addBehavior(new SizeOverLife(new PiecewiseBezier([[new Bezier(1, 0.95, 0.75, 0), 0]])));
// texture atlas animation
muzzle1.addBehavior(new FrameOverLife(new PiecewiseBezier([[new Bezier(91, 94, 97, 100), 0]])));
muzzle1.emitter.name = 'muzzle1';
muzzle1.emitter.position.x = 1;

// Add emitter to your Object3D
scene.add(muzzle1.emitter);

Add batch renderer update in your main loop

// update batched renderer
batchSystem.update(clock.getDelta());

Import VFX JSON

let loader = new QuarksLoader();
loader.setCrossOrigin("");
loader.load(jsonURL, batchSystem, (object3D: Object3D)=>{
    this.state.scene.add(object3D);
}, ()=>{}, ()=>{});

Note: the texture url reference is defined by the texture's name field. you may need to modify the texture url in json as needed.

Export VFX JSON

JSON.stringify(muzzle1.emitter.toJSON())
JSON.stringify(muzzle1.emitter.parent.toJSON())

three.quarks-editor

three.quarks-editor can help you preview a set of particle system at once. and you can also adjust all the particle system at real time and export those system as a JSON file. Your app or game can load those JSON file later. It even includes a Javascript scripting system to test those effect in a similar environment to your application.

Install

Package install

yarn install three.quarks

browser install

Tests

Check test folder

More examples will come up later.

Notes