# None

> No options are specified.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.XR](/engine/6000.7/script-reference/unityengine/xr.md)
* **Assembly:** UnityEngine.XRModule

```csharp
None = 0
```

### Remarks

Used by [XRMeshSubsystem.GenerateMeshAsync](/engine/6000.7/script-reference/unityengine/xr/xrmeshsubsystem/generatemeshasync.md). If the mesh provider supplies a transform and `MeshGenerationOptions` has this value, Unity applies the supplied transform to the vertices of the mesh, and rebakes the physics mesh. If you do not need to perform these operations, you should set [MeshGenerationOptions.ConsumeTransform](/engine/6000.7/script-reference/unityengine/xr/meshgenerationoptions/consumetransform.md).

Additional Resources: [XRMeshSubsystem.GenerateMeshAsync](/engine/6000.7/script-reference/unityengine/xr/xrmeshsubsystem/generatemeshasync.md), [MeshGenerationResult](/engine/6000.7/script-reference/unityengine/xr/meshgenerationresult.md)