# filteringGaussianRadiusIndirect

> Specifies the method that the Progressive Lightmapper uses to reduce noise in lightmaps. (Editor only).

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.3/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public float filteringGaussianRadiusIndirect { get; set; }
```

### Remarks

Options are `None`, `Automatic`, or `Advanced`.

This setting affects lightmaps generated by the Baked Global Illumination system. It only applies to the the Progressive Lightmapper.

When Unity serializes this `LightingSettings` object as a [Lighting Settings Asset](/engine/6000.3/manual/lighting-overview/lighting-reference/class-lighting-settings.md), this property corresponds to the **Filtering** property in the Lighting Settings Asset Inspector.

Additional Resources: [Lighting Settings Asset](/engine/6000.3/manual/lighting-overview/lighting-reference/class-lighting-settings.md).