Support for native head tracking is added via OpenVR.
This mod has been tested with the Oculus Rift and the HTC Vive by users on the Oculus sub-reddit and the HTC Vive sub-reddit. GTA VR is a free third-party mod for Grand Theft Auto V offline which works with VorpX and the HTC Vive or Oculus Rift to give an enhanced Virtual Reality (VR) experience.