# Automatic

> Automatically populates and updates the RayTracingAccelerationStructure.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.Rendering](/engine/6000.6/script-reference/unityengine/rendering.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
Automatic = 1
```

### Remarks

If ManagementMode is Automatic, then Unity adds all supported [Renderer](/engine/6000.6/script-reference/unityengine/renderer.md)s in the Scene to the RayTracingAccelerationStructure as you create them, and removes them as you delete them. Unity updates the [RayTracingAccelerationStructure](/engine/6000.6/script-reference/unityengine/rendering/raytracingaccelerationstructure.md) and all transforms of instances within it at the beginning of rendering each frame.