# EnableSolidAngleCulling

> Causes RayTracingAccelerationStructure.CullInstances to perform solid-angle culling.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.Rendering](/engine/6000.5/script-reference/unityengine/rendering.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
EnableSolidAngleCulling = 32
```

### Remarks

The minimum solid angle in degrees is defined in the [RayTracingInstanceCullingConfig.minSolidAngle](/engine/6000.5/script-reference/unityengine/rendering/raytracinginstancecullingconfig/minsolidangle.md) property, and its apex is defined by the cameraPosition value from [RayTracingInstanceCullingConfig.lodParameters](/engine/6000.5/script-reference/unityengine/rendering/raytracinginstancecullingconfig/lodparameters.md).

A Renderer in the Scene is accepted to the acceleration structure if its solid angle is larger than [RayTracingInstanceCullingConfig.minSolidAngle](/engine/6000.5/script-reference/unityengine/rendering/raytracinginstancecullingconfig/minsolidangle.md).