13 ms·

Yes, but you need a GPU to decode 4k video anyways.

• skohan 7y ago
  Reprojection for VR is typically done on the currently rendered frame, so the difference that the additional camera movement the reprojection is trying to account for is between 1/60th and 1/120th of a second. Here you would be trying to compensate for 30+ms, so the result is going to be a lot lower in quality. Also for a moving scene, you'd need to send a depth or position buffer and a velocity buffer for each frame, meaning you'd need something like twice the bandwidth for your video. Probably more, since I can't imagine how you would compress that information: any artifacts are going to give weird results in the reprojected image.