---
title: LowLevelMeshResource.VertexSemantic.normal
framework: realitykit
role: symbol
role_heading: Case
path: realitykit/lowlevelmeshresource/vertexsemantic/normal
---

# LowLevelMeshResource.VertexSemantic.normal

The semantic for surface normal data.

## Declaration

```swift
case normal
```

## See Also

### Identifying geometric attributes

- [LowLevelMeshResource.VertexSemantic.position](realitykit/lowlevelmeshresource/vertexsemantic/position.md)
- [LowLevelMeshResource.VertexSemantic.tangent](realitykit/lowlevelmeshresource/vertexsemantic/tangent.md)
- [LowLevelMeshResource.VertexSemantic.bitangent](realitykit/lowlevelmeshresource/vertexsemantic/bitangent.md)
- [LowLevelMeshResource.VertexSemantic.color](realitykit/lowlevelmeshresource/vertexsemantic/color.md)