---
title: MPSCustomKernelIndexUserDataIndex
framework: metalperformanceshaders
role: symbol
role_heading: Global Variable
path: metalperformanceshaders/mpscustomkernelindexuserdataindex
---

# MPSCustomKernelIndexUserDataIndex

## Declaration

```swift
var MPSCustomKernelIndexUserDataIndex: MPSCustomKernelIndex { get }
```