# enableHeightmapRayTracing

> When this options is enabled, Terrain heightmap geometries will be added in acceleration structures used for Ray Tracing.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.TerrainModule

```csharp
public bool enableHeightmapRayTracing { get; set; }
```

### Remarks

Use [RayTracingAccelerationStructure.CullInstances](/engine/6000.7/script-reference/unityengine/rendering/raytracingaccelerationstructure/cullinstances.md) function to add Terrain heightmap geometries to the acceleration structure.

Additional Resources: [RayTracingAccelerationStructure](/engine/6000.7/script-reference/unityengine/rendering/raytracingaccelerationstructure.md), [\_supportsRayTracing](/engine/6000.7/script-reference/unityengine/systeminfo/supportsraytracing.md)