# GetMissShaderRayPayloadSize(RayTracingShader, int)

> Returns the ray payload size of a user-defined miss Shader from within a RayTracingShader.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor](/engine/6000.3/script-reference/unityeditor.md)
* **Assembly:** UnityEditor

```csharp
public static int GetMissShaderRayPayloadSize(RayTracingShader s, int shaderIndex)
```

### Parameters

**** (\[RayTracingShader]\(/engine/6000.3/script-reference/unityengine/rendering/raytracingshader)): The [RayTracingShader](/engine/6000.3/script-reference/unityengine/rendering/raytracingshader.md) instance.**** (\[int]\(https\://learn.microsoft.com/dotnet/api/system.int32)): The miss Shader index for which to retrieve the ray payload size.

### Returns

| Type                                                       | Description                    |
| ---------------------------------------------------------- | ------------------------------ |
| [int](https://learn.microsoft.com/dotnet/api/system.int32) | The ray payload size in bytes. |

### Remarks

Additional Resources: [ShaderUtil.GetMissShaderCount](/engine/6000.3/script-reference/unityeditor/shaderutil/getmissshadercount.md), [ShaderUtil.GetMissShaderName](/engine/6000.3/script-reference/unityeditor/shaderutil/getmissshadername.md).