---
title: "init(device:sourceCount:sourceGradientIndex:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpsndarraymultiarygradientkernel/init(device:sourcecount:sourcegradientindex:)"
---

# init(device:sourceCount:sourceGradientIndex:)

## Declaration

```swift
init(device: any MTLDevice, sourceCount count: Int, sourceGradientIndex: Int)
```