---
title: radius
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/ciheightfieldfrommask/radius
---

# radius

The length of the height-field transition.

## Declaration

```swift
var radius: Float { get set }
```

## Discussion

Discussion Larger values make the transition smoother and more pronounced. Smaller values make the transition approximate a fillet radius.

## See Also

### Instance Properties

- [inputImage](coreimage/ciheightfieldfrommask/inputimage.md)