Class providing information about XRDisplaySubsystem registration.
| disablesLegacyVr | Indicates whether legacy VR settings must be disabled for the subsystem. Set to true if the Editor must disable the legacy VR settings disabled; otherwise false. |
| GetAvailableMirrorBlitModeCount | Get current display subsystem's total number of supported mirror blit modes. |
| GetMirrorBlitModeByIndex | Get a supported mirror view blit mode from the current display subsystem descriptor. |
| id | A unique string that identifies the subsystem that this Descriptor can create. |