Ha, believe me, I’ve tried them all. I also tried every other trick out there like moving the HMD up/down/away/tilted. I see 3 possible reasons why some, like you, don’t experience distortion and why others like me do:
- We have different hardware. Pimax seems to have done several revisions, this might be a factor
- We have different physiological features. I could imagine that the specific tilted angle of the panels for example works better for some faces than for others. Also I imagine properties (like size) of the eye/iris itself could have impact.
- We experience things differently. Like some seem to notice a big difference in frequency 90/120 hz on the Index and some don’t, maybe some are more prone to perceiving distortions than others.
I tend to think it’s mostly point 3. In a scenario where the iris position changes so much (ultra wide FoV like the Pimax) I don’t really see how it’s possible to have 0 distortion with a fixed distortion profile. See also my comment here, way back before they even created the 5k/8k: 110 degrees Fov stretched to 200 degrees? EDIT: All the games render in a native wide FOV through the engine After that, StarVR revealed that they solved distortion issues exactly like that: a dynamic distortion profile based on the position of the iris (so each frame the eye tracker checks the iris position and applies a distortion profile for that frame, for that iris position). So that makes me think my theory there was correct.