---
title: "sourceFeatureChannelMaxCount(at:)"
framework: metalperformanceshaders
role: symbol
role_heading: Instance Method
path: "metalperformanceshaders/mpscnnmultiarykernel/sourcefeaturechannelmaxcount(at:)"
---

# sourceFeatureChannelMaxCount(at:)

## Declaration

```swift
func sourceFeatureChannelMaxCount(at index: Int) -> Int
```