unity-vfx-graph

# Unity VFX Graph Skill Visual Effect Graph development for GPU-accelerated particle systems in Unity. ## Overview This skill provides capabilities for creating high-performance visual effects using Unity's Visual Effect Graph, leveraging GPU compute for millions of particles. ## Capabilities ### Particle Systems - Create GPU particle systems - Configure spawn, initialize, update, output contexts - Handle particle attributes - Implement particle collision ### Procedural Effects - Use noise and turbulence - Implement SDF-based effects - Create mesh sampling effects - Build camera-based interactions ### Visual Authoring - Design effects in VFX Graph editor - Create subgraphs for reuse - Implement property sheets - Build event-driven effects ### Integration - Connect to C# scripts - Handle events and parameters - Integrate with Timeline - Manage performance budgets ## Prerequisites - Unity 2021.3+ with VFX Graph package - SRP (URP or HDRP) project - Compute shader capable hardware ## Usage Patterns ### Spawning Particles from Code ```csharp public class VFXController : MonoBehaviour { [SerializeField] private VisualEffect vfx; void Start() { // Set properties vfx.SetFloat("SpawnRate", 100f); vfx.SetVector3("EmitterPosition", transform.position); } public void TriggerBurst() { // Send event vfx.SendEvent("OnBurst"); } } ``` ### Property Binding ```csharp // Expose VFX properties via C# bindings v...