---
title: beta
framework: metalperformanceshaders
role: symbol
role_heading: Instance Property
path: metalperformanceshaders/mpscnncrosschannelnormalization/beta
---

# beta

The “beta” variable of the kernel function.

## Declaration

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

## Discussion

Discussion The default value is 5.0.

## See Also

### Instance Properties

- [alpha](metalperformanceshaders/mpscnncrosschannelnormalization/alpha.md)
- [delta](metalperformanceshaders/mpscnncrosschannelnormalization/delta.md)
- [kernelSize](metalperformanceshaders/mpscnncrosschannelnormalization/kernelsize.md)