---
title: MDLVertexAttributeEdgeCrease
framework: modelio
role: symbol
role_heading: Global Variable
path: modelio/mdlvertexattributeedgecrease
---

# MDLVertexAttributeEdgeCrease

The attribute data describes edges that should be left unmodified by surface subdivision operations.

## Declaration

```swift
let MDLVertexAttributeEdgeCrease: String
```

## See Also

### Constants

- [MDLVertexAttributeAnisotropy](modelio/mdlvertexattributeanisotropy.md)
- [MDLVertexAttributeBinormal](modelio/mdlvertexattributebinormal.md)
- [MDLVertexAttributeBitangent](modelio/mdlvertexattributebitangent.md)
- [MDLVertexAttributeColor](modelio/mdlvertexattributecolor.md)
- [MDLVertexAttributeJointIndices](modelio/mdlvertexattributejointindices.md)
- [MDLVertexAttributeJointWeights](modelio/mdlvertexattributejointweights.md)
- [MDLVertexAttributeNormal](modelio/mdlvertexattributenormal.md)
- [MDLVertexAttributeOcclusionValue](modelio/mdlvertexattributeocclusionvalue.md)
- [MDLVertexAttributePosition](modelio/mdlvertexattributeposition.md)
- [MDLVertexAttributeShadingBasisU](modelio/mdlvertexattributeshadingbasisu.md)
- [MDLVertexAttributeShadingBasisV](modelio/mdlvertexattributeshadingbasisv.md)
- [MDLVertexAttributeSubdivisionStencil](modelio/mdlvertexattributesubdivisionstencil.md)
- [MDLVertexAttributeTangent](modelio/mdlvertexattributetangent.md)
- [MDLVertexAttributeTextureCoordinate](modelio/mdlvertexattributetexturecoordinate.md)
- [kUTType3dObject](modelio/kuttype3dobject.md)