---
title: MTLAttributeFormat.uchar3
framework: metal
role: symbol
role_heading: Case
path: metal/mtlattributeformat/uchar3
---

# MTLAttributeFormat.uchar3

A three-component vector with 8-bit, unsigned integer values.

## Declaration

```swift
case uchar3
```

## See Also

### 8-bit integer formats

- [MTLAttributeFormat.char](metal/mtlattributeformat/char.md)
- [MTLAttributeFormat.char2](metal/mtlattributeformat/char2.md)
- [MTLAttributeFormat.char3](metal/mtlattributeformat/char3.md)
- [MTLAttributeFormat.char4](metal/mtlattributeformat/char4.md)
- [MTLAttributeFormat.uchar](metal/mtlattributeformat/uchar.md)
- [MTLAttributeFormat.uchar2](metal/mtlattributeformat/uchar2.md)
- [MTLAttributeFormat.uchar4](metal/mtlattributeformat/uchar4.md)