---
title: LowLevelDeformation.VertexSemantic.bitangent
framework: realitykit
role: symbol
role_heading: Case
path: realitykit/lowleveldeformation/vertexsemantic/bitangent
---

# LowLevelDeformation.VertexSemantic.bitangent

The semantic for surface bitangent vector data.

## Declaration

```swift
case bitangent
```

## See Also

### Identifying vertex attributes

- [LowLevelDeformation.VertexSemantic.position](realitykit/lowleveldeformation/vertexsemantic/position.md)
- [LowLevelDeformation.VertexSemantic.normal](realitykit/lowleveldeformation/vertexsemantic/normal.md)
- [LowLevelDeformation.VertexSemantic.tangent](realitykit/lowleveldeformation/vertexsemantic/tangent.md)
- [LowLevelDeformation.VertexSemantic.uv](realitykit/lowleveldeformation/vertexsemantic/uv.md)