---
title: "init(positions:triangleIndices:materials:)"
framework: realitykit
role: symbol
role_heading: Initializer
path: "realitykit/reverbmeshresource/init(positions:triangleindices:materials:)"
---

# init(positions:triangleIndices:materials:)

## Declaration

```swift
convenience init(positions: [SIMD3<Float>], triangleIndices: [UInt32], materials: [UInt32]) throws
```