# SetRayTracingMatrixArrayParam

> Adds a command to set a matrix array parameter on a RayTracingShader.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine.Rendering](/engine/6000.0/script-reference/unityengine/rendering.md)
* **Assembly:** UnityEngine.CoreModule

## SetRayTracingMatrixArrayParam(RayTracingShader, string, Matrix4x4\[])

Adds a command to set a matrix array parameter on a [RayTracingShader](/engine/6000.0/script-reference/unityengine/rendering/raytracingshader.md).

```csharp
public void SetRayTracingMatrixArrayParam(RayTracingShader rayTracingShader, string name, params Matrix4x4[] values)
```

### Parameters

**** (\[RayTracingShader]\(/engine/6000.0/script-reference/unityengine/rendering/raytracingshader)): [RayTracingShader](/engine/6000.0/script-reference/unityengine/rendering/raytracingshader.md) to set parameter for.**** (\[string]\(https\://learn.microsoft.com/dotnet/api/system.string)): Name of the variable in shader code.**** (\[Matrix4x4\[]]\(/engine/6000.0/script-reference/unityengine/matrix4x4)): Value to set.

### Remarks

Only shaders defined in the .raytrace file can access the matrix array you designate as the argument for this method. To make this matrix array accessible to all ray tracing shader types (closest hit, any hit, or miss, for example), call the [CommandBuffer.SetGlobalMatrixArray](/engine/6000.0/script-reference/unityengine/rendering/commandbuffer/setglobalmatrixarray.md) method instead.

## SetRayTracingMatrixArrayParam(RayTracingShader, int, Matrix4x4\[])

Adds a command to set a matrix array parameter on a [RayTracingShader](/engine/6000.0/script-reference/unityengine/rendering/raytracingshader.md).

```csharp
public void SetRayTracingMatrixArrayParam(RayTracingShader rayTracingShader, int nameID, params Matrix4x4[] values)
```

### Parameters

**** (\[RayTracingShader]\(/engine/6000.0/script-reference/unityengine/rendering/raytracingshader)): [RayTracingShader](/engine/6000.0/script-reference/unityengine/rendering/raytracingshader.md) to set parameter for.**** (\[int]\(https\://learn.microsoft.com/dotnet/api/system.int32)): Property name ID. Use [Shader.PropertyToID](/engine/6000.0/script-reference/unityengine/shader/propertytoid.md) to get this ID.**** (\[Matrix4x4\[]]\(/engine/6000.0/script-reference/unityengine/matrix4x4)): Value to set.

### Remarks

Only shaders defined in the .raytrace file can access the matrix array you designate as the argument for this method. To make this matrix array accessible to all ray tracing shader types (closest hit, any hit, or miss, for example), call the [CommandBuffer.SetGlobalMatrixArray](/engine/6000.0/script-reference/unityengine/rendering/commandbuffer/setglobalmatrixarray.md) method instead.