Does anyone have any advice on optimizing Pimax for Skyrim?
I’ve done some testing and realized you can see how much of a performance hit PiTool settings have by changing them, then looking at the SteamVR->Settings->Video-> Application Resolution recommendation, which changes each time you change certain settings like parallel projection (pp). PP takes a massive performance toll on the GPU, but without it, I generally see a lot of distracting artifacts in Skyrim, mostly at the corners of the screen. Anyone get Skyrim to work without needing parallel projections?
TIP: It seems that letting SteamVR to set your application resolution (super-sampling) automatically is a good strategy as it automatically sharpens the graphics on some games based on your current PiTool settings. Change the per application resolution in SteamVR only if you have performance issues.
For those interested, here’s my observations in Pitool v132 (Skyrim TAA and dynamic resolution are off), Pitool rendering=1. Smart Smoothing is always off as it trashes performance in Skyrim, especially when using Natural locomotion. (Note: I have a very high-end 2080TI rig OC and i7-8700K CPU @4700ghz, DD4 4000hz 16GB)
PP off. Recommended Application Resolution in SteamVR jumps from 86% to 130%. Basically, parallel projections cuts performance by 1/3 when on, but if I leave it off, I get too many artifacts in Skyrim, which is a shame. Love to have a fix for this!
Pitool Rendering=1. Normal FOV. Pretty solid 72FPS in Falkreach. Leaf shimmer on trees is gone (seems to be the case when super-sampling/resolution is 130% or more. Sharpness is improved. It’s not perfect as character faces far away still blur out, but it feels much more real. HOWEVER, graphical artifacts mostly on the display edges appear without PP. This happens frequently, which is a shame.
PP OFF and Small POV resolution = 150%. So FOV from normal to small makes a pretty big difference. I still get artifacts mostly at outer 25% of the screen (flickers, flashes, brief blurred areas). Trees and sharpness was very good because of the high super-sampling (best of all the settings). Characters close up are amazingly sharp and clear.
PP ON and Small POV changes resolution to 120%. Tree shimmering was minimal (but practically gone when at 150%). No PP artifacts. Random split second CPU spikes cause a couple of stutters going thru Falkreath this time. Not sure why? Mostly 72fps, but entering Falkreath drops into 60’s. FPS is mostly 70-72.
PP OFF and Small FOV re-test. Got CPU stutters again just like with PP ON. So, don’t know why those happen? Graphics were excellent and for some reason, artifacts were minimal this time with PP OFF. Maybe I forgot to reboot the HMD and PP was actually on?
For me, running PP ON and FOV at small keeps FPS near 72 and seems the best compromise, though less than perfect. However, I’d prefer to have resolution higher than 120%, but that cuts into the FPS. Anyone get better results with other settings or with Pitool 180?