# MaterialRefCreateParams class

Namespace: [Rhino.DocObjects](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.docobjects.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md)

```cs
public class MaterialRefCreateParams
```

Options passed to MaterialRefs.Create

## Properties

- [BackFaceMaterialId](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.materialrefcreateparams/backfacematerialid.md): The Id of the Material used to render the back of an object.
- [BackFaceMaterialIndex](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.materialrefcreateparams/backfacematerialindex.md): The index of the material used to render the back of an object
- [FrontFaceMaterialId](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.materialrefcreateparams/frontfacematerialid.md): The Id of the Material used to render the front of an object.
- [FrontFaceMaterialIndex](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.materialrefcreateparams/frontfacematerialindex.md): The index of the material used to render the front of an object
- [MaterialSource](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.materialrefcreateparams/materialsource.md): Determines if the simple material should come from the object or from it's layer.
- [PlugInId](https://developer.rhino3d.com/api/rhinocommon/type/rhino.docobjects.materialrefcreateparams/pluginid.md): Identifies a rendering plug-in