# layerMask

> A LayerMask that is used to selectively filter which colliders are considered when casting a ray.

## Definition

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

> **Warning:**
>
> **Deprecated.** Layer Mask is now a part of QueryParameters struct

```csharp
public int layerMask { get; set; }
```