# Sandbox.ModelDeformer.Falloff

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

Width of the smooth edge fade, relative to the shape's radius or smallest half-extent.
Zero applies full strength inside the shape; one fades across the entire interior.
Infinite shapes always apply full strength and do not use falloff.

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