# shadowBias

> Apply a shadow bias to prevent self-shadowing artifacts. The specified value is the proportion of the particle size.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.3/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

```csharp
public float shadowBias { get; set; }
```