# Sandbox.LightModulator.EdgeFeather

```csharp
float EdgeFeather { get; set; }
```

Fade inward from each rectangle edge, as a fraction of its width or height.
Zero gives a hard boundary; 0.1 fades across the outer ten percent on each axis.
Uses the physical rectangle, independent of texture tiling or scrolling.

Declared in [Sandbox.LightModulator](/api/Sandbox.LightModulator).
Assembly: `Sandbox.Engine`.