# useRadianceAmbientProbe

> If enabled, ambient trilight will be sampled using the old radiance sampling method.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.Experimental.GlobalIllumination](/engine/6000.7/script-reference/unityengine/experimental/globalillumination.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public static bool useRadianceAmbientProbe { get; set; }
```

### Remarks

This feature is here to maintain backwards compatibility for real-time ambient light when using the trilight mode. The new default behavior now uses the correct sampling behavior. Please note that the new sampling method is slower.