After updating my Pimax5k+ with a new firmware (2.1.255.269) and PiTool (1.0.1.268), I decided to do a complete update of Pimax5k+ records in HMDGDB (HMD Geometry Database | Collected geometry data from some commercially available VR headsets.), which was long overdue.
Few things worthy to mention:
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While Pimax tried to better match the hidden area masks for native and parallel projection modes it still does not match (exactly), and it seems like probably never will.
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While there are only two FOVs for 144Hz and 120Hz refreshes, labeled Normal and Small, available in PiTool, the FOVs for 120Hz refresh actually correspond to Small and Tiny (Potato in Pimax speak). I am not sure if it is a bug, or there is some particular reason why 120Hz mode is more restricted than 144Hz mode. If anyone knows, let me know.
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Even though I recorded the complete data for all configurations (including 64Hz and 72Hz refresh modes), I did not push those into the database as their geometry is identical to 90Hz mode, and I wanted to avoid having “too many Pimaxes” in there.