PDADAPTIVE can get stuck at low frame rate and flicker.
Using UE4.14.3, I'm seeing an issue where with HMD PDADAPTIVE ON, and there has been a high render requirment, the frame rate is locked to 45hz rather than 90hz, the PD range has the capacity to bring the frame rate back, but it doesn't. If I then set hmd pd to say 0.5, this appears to reset the system, allowing 90hz and then pd automatically increases as you would expect. Additionally when frame rate is low I will see flicker in one eye (right), so for example if I force a high PD to reduce frame rate then set something more rational, I will see flicker until frame rate is restored, but in the case above where frame rate fails to be restored, naturally the flicker persists. I see the flicker issue on nvidia GFX cards (980), but have not seen on AMD, while I have seen the frame rate failing to be restored by PDADAPTIVE on both.900Views0likes2Comments