Fully synchronized eye rendering. Game world does not advance time between frames. Looks normal but temporal effects like TAA will have ghosting/doubling effect. Motion blur will need to be turned off ...
So here’s how you can play Red Dead Redemption 2 (RDR2) in VR for free. RDR2 was initially playable in VR, thanks to Luke Ross’s REAL VR mod ... and go to Settings > Controls > Controller.