# Sandbox.Rendering.GradientFogSetup.DistanceFalloffExponent

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

The exponent controlling the distance-based falloff of the fog.

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