# PerParticle

> Only bake each particle, instead of each vertex of each particle (i.e. 1 vertex per billboard).

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

```csharp
PerParticle = 8
```

### Remarks

This can be a useful optimization if you are not using any per-vertex data such as UV's or Positions.