---
title: MDLMaterialPropertyType.none
framework: modelio
role: symbol
role_heading: Case
path: modelio/mdlmaterialpropertytype/none
---

# MDLMaterialPropertyType.none

The material property’s value has not been initialized.

## Declaration

```swift
case none
```

## Discussion

Discussion Set one of the properties listed in Working with a Material Property’s Value to provide a value for the material property. After setting a value, the type property reflects the data type of that value.

## See Also

### Constants

- [MDLMaterialPropertyType.string](modelio/mdlmaterialpropertytype/string.md)
- [MDLMaterialPropertyType.URL](modelio/mdlmaterialpropertytype/url.md)
- [MDLMaterialPropertyType.texture](modelio/mdlmaterialpropertytype/texture.md)
- [MDLMaterialPropertyType.color](modelio/mdlmaterialpropertytype/color.md)
- [MDLMaterialPropertyType.float](modelio/mdlmaterialpropertytype/float.md)
- [MDLMaterialPropertyType.float2](modelio/mdlmaterialpropertytype/float2.md)
- [MDLMaterialPropertyType.float3](modelio/mdlmaterialpropertytype/float3.md)
- [MDLMaterialPropertyType.float4](modelio/mdlmaterialpropertytype/float4.md)
- [MDLMaterialPropertyType.matrix44](modelio/mdlmaterialpropertytype/matrix44.md)