# requiredShaderPasses

> An array of Shader Pass names used by RayTracingAccelerationStructure.CullInstances to accept Renderers or individual sub-meshes whose Shader contains at least one of these Shader Passes.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.Rendering](/engine/6000.7/script-reference/unityengine/rendering.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public string[] requiredShaderPasses
```

### Remarks

If a Shader contains at least one of the Shader Passes from the list, the acceleration structure accepts the Renderer or the sub-mesh that uses the Shader. An empty array passes the test.

[RayTracingAccelerationStructure.CullInstances](/engine/6000.7/script-reference/unityengine/rendering/raytracingaccelerationstructure/cullinstances.md).