---
title: "init(semantic:format:stride:)"
framework: realitykit
role: symbol
role_heading: Initializer
path: "realitykit/lowleveldeformation/vertexattribute/init(semantic:format:stride:)"
---

# init(semantic:format:stride:)

Creates a vertex attribute.

## Declaration

```swift
init(semantic: LowLevelDeformation.VertexSemantic, format: MTLVertexFormat, stride: Int)
```