---
title: format
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/geometrysource/format
---

# format

The vertex format for data in a geometry source’s buffer.

## Declaration

```swift
var format: MTLVertexFormat { get }
```

## See Also

### Inspecting geometry data

- [buffer](arkit/geometrysource/buffer.md)
- [count](arkit/geometrysource/count.md)
- [componentsPerVector](arkit/geometrysource/componentspervector.md)
- [offset](arkit/geometrysource/offset.md)
- [stride](arkit/geometrysource/stride.md)
- [description](arkit/geometrysource/description.md)