GPU Particle System

A stateless GPU particle system shader for Unity / VRChat.

Overview

GPUParticle recreates Unity Shuriken particle features entirely in the vertex shader, eliminating CPU overhead. Each frame recalculates particle state from deterministic seeds—no texture read/write required.

Most Shuriken modules supported. VR compatible.

Limitations:

• World Space only
• Constant values only
• Not supported: Collision, Triggers, Sub Emitters, Lights, Trails ...

Usage

1. Generate Mesh Tools → GPU Particle System → Generate Mesh

2. Create Material Create material with GekikaraStore/GPUParticleSystem shader

3. Setup GameObject Add MeshFilter (generated mesh) + MeshRenderer (material) or SkinnedMeshRenderer (material)

Requires Thry ShaderEditor for the inspector UI.

License

MIT License - see LICENSE for details.