The status of a XRMeshSubsystem.GenerateMeshAsync.
                XRMeshSubsystem.GenerateMeshAsync will always invoke the provided delegate when the generation completes. This enum contains information about whether the generation was successful, or if an error occurred.
                Additional resources: XRMeshSubsystem.GenerateMeshAsync
            
| Description | |
|---|---|
| Success | The mesh generation was successful. | 
| InvalidMeshId | The mesh generation failed because the mesh does not exist. | 
| GenerationAlreadyInProgress | The XRMeshSubsystem was already generating the requested mesh. | 
| Canceled | The mesh generation was canceled. | 
| UnknownError | The mesh generation failed for unknown reasons. |