# CastRay(CastRayInput, PhysicsMask, Allocator)

> Find proxies that intersect the specified ray. The results indicate that the proxy AABB intersect the specified cast ray, in no specific order.

## Definition

* **Type:** Method
* **Namespace:** [Unity.U2D.Physics](/engine/6000.7/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public NativeArray<PhysicsSpace.ProxyResult> CastRay(PhysicsQuery.CastRayInput input, PhysicsMask categories, Allocator allocator = Allocator.Temp)
```

### Parameters

**** (\[CastRayInput]\(/engine/6000.7/script-reference/unity/u2d/physics/physicsquery/castrayinput)): The configuration of the ray to cast.**** (\[PhysicsMask]\(/engine/6000.7/script-reference/unity/u2d/physics/physicsmask)): The categories to query for.**** (\[Allocator]\(/engine/6000.7/script-reference/unity/collections/allocator)): The memory allocator to use for the results. This can only be [Allocator.Temp](/engine/6000.7/script-reference/unity/collections/allocator/temp.md), [Allocator.TempJob](/engine/6000.7/script-reference/unity/collections/allocator/tempjob.md) or [Allocator.Persistent](/engine/6000.7/script-reference/unity/collections/allocator/persistent.md).

### Returns

| Type                                                                                           | Description                                                                                                                                        |
| ---------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------- |
| [NativeArray\<ProxyResult>](/engine/6000.7/script-reference/unity/collections/nativearray1.md) | The query cast results. This NativeArray must be disposed of after use otherwise leaks will occur. The exception to this is if the array is empty. |