r/SteamVR • u/galuke05 • 48m ago
Frame time constantly fluctuating around the 90 Hz limit in X-Plane 12
Hi, I’m using a PSVR2 on PC through SteamVR.
When playing X- Plane 12 I’m seeing severe reprojection artifacts around cockpit instruments and other high-contrast edges. I’ve attached a through-the-lens video of the artifacts and another video showing the SteamVR performance graph.
The strange part is that the frame time constantly moves between roughly 8.6 and 12.2 ms, even while I’m completely still and the scene doesn’t appear to be changing. At 90 Hz the frame budget is 11.1 ms, so it keeps crossing the limit and triggering distortion.
Reducing the resolution eventually fixes it, but I have to lower it to around 50%, which looks terrible. The recordings were taken at approximately 90% resolution.
Other VR games run fine on this PC and don’t show the same frame-time fluctuations or reprojection artifacts. So far, this only seems to happen with X-Plane 12.
My specs:
- Intel i7-10700K
- RTX 4070
- 32 GB RAM
- PSVR2
- SteamVR at 90 Hz
The images attached show screenshots of the performance graph and what the distortion looks like through the lens.
Has anyone seen this kind of rapid frame-time fluctuation before?
I’d appreciate any suggestions.