# enableInteriorCollisions

> Allow particles to collide when inside colliders.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

> **Warning:**
>
> **Deprecated.** enableInteriorCollisions property is deprecated and is no longer required and has no effect on the particle system.

```csharp
public bool enableInteriorCollisions { get; set; }
```

### Remarks

This can be particularly useful if you move colliders around in a script, and using particles for pickups, in order to avoid missing any collision events. However, it may be necessary to disable it in other cases, where you could find particles getting trapped inside colliders.