---
title: "init(distance:primitiveIndex:bufferIndex:instanceIndex:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpsintersectiondistanceprimitiveindexbufferindexinstanceindex/init(distance:primitiveindex:bufferindex:instanceindex:)"
---

# init(distance:primitiveIndex:bufferIndex:instanceIndex:)

## Declaration

```swift
init(distance: Float, primitiveIndex: UInt32, bufferIndex: UInt32, instanceIndex: UInt32)
```