20 Three.js Particle Examples

English translation of the requested list. (Add your own source links as needed.)

Hundreds of thousands of particles with BufferGeometry (PointsMaterial) — control position/color via attributes.
Sprite particles (snow) — basics of textured Sprite/Points.
Sine‑wave particles — undulating via a vertex shader.
Billboard particles — quads that always face the camera.
Interactive particles — respond to a field via mouse input.
Raycast selection for Points — detect clicks on point clouds.
Custom attributes × Points — size/color etc. via vertex attributes.
Dynamic particles + post‑processing — combine with bloom and other effects.
GPGPU flocking (boids) — update thousands of agents on the GPU.
GPGPU + glTF mesh swarms — make 3D models school/swarm.
GPGPU proto‑planet (debris particles) — reaction–diffusion / gravity vibe.
GPGPU water — surface disturbances via particles/textures.
Galaxy generator (Points) — module to sculpt spiral galaxies.
WebGPU sprites — massive sprites with the next‑gen pipeline.
WebGPU instanced sprites — ultra‑dense rendering via instancing.
three‑nebula (library) — full‑fledged particle engine with many examples.
ShaderParticleEngine (library) — a veteran GPU‑driven implementation.
THREE.GPUParticleSystem (library) — easy‑to‑use GPU particles.
GPU particles (3D noise‑driven) — control with a noise field.
Codrops: Interactive Particles (tutorial + code) — interactive massive point clouds using off‑screen textures.

Tips

In three.js official demos, click “View source” at the bottom right to open the code.
When using older libraries, mind version differences (see migration guides).

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