En "perso", il te garde le dernier réglage de curseur de supersampling que tu as fait.
Si 4656 x 4656 ça fait 200%, ça veut dire que 2328 x 2328 c'est 100%
Le casque fait 2448 x 2448 par oeil, ce qui est proche des 100%, mais il a un HAM (Hidden Area Mask -> Zone non visible par les yeux) de 10%.
VP2 Panel res is 4896x2448 but HTC suggests 150% supersampling to correct for distortion, motion compensation and maintaining clarity since it’s gotta wrap that rectangular image around your visual field which is also constantly moving and shifting, so optimally the res should be 7344xx3672. Now if you think of the VR headset as a monitor then that would be the equivalent of Windows display setting. For the same reason you would want to set your 4K monitor at 3840x2160 which is the default setting.
The way Vive console works is by estimating your GPU strength from SteamVR polling and then it assigns rendering pixels to scaling numbers. Therefore, people with different GPUs will have different rendering pixels assigned at any % scale. Stronger GPU will have higher rendering pixels assigned at 100%. Because of bandwidth limit, higher refresh rate such as 120Hz will also have lowered rendering pixels assigned for the same GPU.
And this is why HTC officially recommends leaving Steam SS setting at 150% if you can since you would get optimized image quality for your particular GPU at that point. What I typically do then is reduce in-game resolution to accommodate my need since there is no PC out there that can drive 7K pixels at respectable framerate. When you do it this way, the title screens, menu, gui remain super sharp and the image quality goes down when the game session starts based on the strength of your computer. For the same reason I don’t set my 4KTV at 1440p in Windows display, but I will instead reduce in-game resolution to 1440p in some games to achieve higher fps.
Apparemment la console Vive estime la puissance de votre système et assigne un certain supersampling à SteamVR. Ca semble être le cas des différentes mesures de tout le monde :