# Light.Attenuation enum

Namespace: [Rhino.Geometry](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.geometry.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md) · Since v7.0

```cs
public enum Light.Attenuation
```

Types of light attenuation available.

## Values

| Name | Value | Description |
| --- | --- | --- |
| Constant | 0 | Constant light attenuation, meaning no light energy fall-off. |
| Linear | 1 | Linear light attenuation, meaning linear light energy fall-off. |
| InverseSquared | 2 | Inverse squared light attenuation, meaning light energy falls off in spherical order. |