I wasn’t using PP early in the game as the couple of times I saw graphics issues were of little distraction. Much later in the game I found myself turning it on as those levels had many more anomalies. Not that PP cost much performance for me anyway.
The Alyx Pitool being PT 258 based is a no go for me, as well, as it cost me several fps in Dirt Rally 2 which is a deal breaker as i have it right where I like it with 249.
It couldn’t be that you are using the recent PiTool that has a settings profile specifically for Alyx? I could easily imagine that one of the settings it comprises (EDIT: presumably overriding one’s global preferrence) could be: “PP on”.
Lower refresh rate gives you better render resolution, because the game scales it up and down automatically, so that you constantly get as much quality as there is time for, between refreshes, without missing any of them (save sudden spikes), depending on how heavy the rendering load is at any given time.
Man, when I noticed that bullet hole decals have parallax mapping, my pre-existing regret that the wall textures do not, doubled.
Is there a way to correct avoid the objects from disapear far on the side view of our Pimax like it does into steam home either ? It is annoying.
EDIT : I tried PP and the problem was gone but the graphics was really not as good.
My max recommended resolution was set to 8192 into steamvr setting .txt.
Pitool 1.0 , SteamVR 150%, 5K+, 2080TI, 72HZ, high settings graphics in-game menu.