Quest Pro Passthrough lag/latency/low framerate over Oculus Link cable
The Quest Pro passthrough video feed lags considerably when entering Play mode in Unity and using the Link cable. Virtual objects render at > 72 FPS (reported in Stats window), but the video underlay from the real world feels like ~3 FPS. Additionally, the passthrough often does not work at all over the Link cable---specifically, if I remove the headset after running the scene (but leave the device plugged into the Link cable), the next time I put the headset on and run the scene results in no passthrough video (black background) or a warped still image of the passthrough video that does not change as I move/rotate my head. The tedious fix for this issue has been disconnecting and reconnecting the Link cable, and then re-enabling the Link in the headset. The same scene works fine (consistent, no passthrough lag) using a Quest 2. I am using a desktop computer with an RTX 3090 and a USB 3 connection with >2 GB/s throughput. As indicated in this post the passthrough works fine when deployed to the device as a .apk. However, I have not been able to find a solution for running it in a usable fashion over the Link cable. One of my colleagues is having the same issues in Unreal Engine.7.2KViews5likes6Comments