I recently got a Pimax VR Headset. Coming from a Samsung Odyssey Plus VR Headset which i used for the last years i can surely say that i got quiet a good amound of experience with VR settings. From the beginning on i knew that i have to enable parallel projection (PP) mode either in the PiTool or in rF2. At first i activated it in both rF2 and PiTool until i noticed that enabling it in PiTool cost a lot of performance due to a increase in horizontal render resolution (9100x4400 with PP / 7100x4400 without PP). Disabling PP in the PiTool had no impact on the rendered image of rF2 so i kept using this settings UNTIL i saw some sparks coming up. I made some short videos which clearly shows that there is something wrong with the sparks in relation to the PP setting of rF2. The fist video show the sparks when PP is enabled in rF2 but not in PiTool. The second video show the sparks when PP is enabled in rF2 and in PiTool. It seems that the rF2 PP setting does something wierd to the sparks I hope this bug can be fixed easy.