# accelerationStructureBuildFlags

> The flags Unity uses when it builds the acceleration structure for the geometry referenced by this ray tracing instance configuration.

## Definition

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

```csharp
public RayTracingAccelerationStructureBuildFlags accelerationStructureBuildFlags { readonly get; set; }
```

### Remarks

If you set `accelerationStructureBuildFlagsOverride` to `true`, Unity uses these flags and overrides the default build flags specified when creating a [RayTracingAccelerationStructure](/engine/6000.5/script-reference/unityengine/rendering/raytracingaccelerationstructure.md).