Once again thanks for all the feedback it has been very useful
Apologies in advance if this is a silly question but I’m completely new to VR so bear with me
regarding the Fixed Foveated Rendering or Dynamic Foveated Rendering and AMD is this something specific with AMD and pimax or it will not be supported also if I buy an headset from a different brand.
Also with the new eye tracking from 7invensun would VRS be natively supported or it will face the same issue for AMD gpu because it does not support FFR or DFR
That is an AMD issue, not a Pimax issue. Other headsets don’t use FFR, aside from the quest (AFAIK). The quest’s FFR is performed without the use of variable rate shading, so it does not require a specific GPU.
Eye tracking is the bigger bummer imo - I have a 2070 super which is very similar to your gpu. I can use FFR, and often do on the conservative setting which is a nice feature. However, my gtx 1080 does not support FFR, and I enjoyed the 5k+ for a solid year with that GPU. I wouldn’t let that hold you back.
VRS is the basis for fixed or dynamic foveated rendering. AMD will only support it from RDNA2 on, so is the sayin. Then it would become a Pimax issue to implement it in collab with AMD.
But in general the VR industry as a whole should use VRS in some way sooner or later. It is part of the upcoming consoles, we’ll see what PS-VR is going to do with it.
So the support for FFR, DFR or VRS is currently an AMD limitation and not something specific to Pimax and I will have that limitation even if I buy a VR from a different brand. That is good to know and thanks for clarifying this!
I’m mainly looking to play sim racing with the VR headset. Based on your experience do you think I will be able to play at 144hz or at least 120hz games like assetto corsa or dirt rally 2.0 in the max FOV or you think my gpu will struggle?
Assetto corsa is relatively easy on the gpu, not needing parallel projection. You should be able to run it at 120hz if you simplify graphics in the options. Dirt rally 2.0 is a different story. No way to get that game to spit out 120+ fps in vr (has 2.0 vr? I know there was a discussion before release that it would not support vr from the beginning). Also i would suggest to play with higher fidelity graphics but smart smoothing on @144Hz. In that case your gpu needs to supply 72fps and your headset reprojects a smooth 144fps out of it.
Also i would suggest that you wait until september when nvidia and amd will present their next generation cards. Big navi supposedly supports all for vr important features. And the price of the nvidia 2000ish generation will drop. I hope that we even can use raytracing in vr with the nvidia 3000 series. But that is probably only a wet dream of mine
Yes, you’ll be able to enjoy those games. I only use 120hz, and i definitely don’t reach 120fps in sims by preference (i like graphics). My preferred games are PC2 and automobilista 2 at the moment which are hard to run, but still very smooth on my setup with maxed out settings.
I have Dirt Rally (not 2) with my Radeon and for me it’s fine.
Also Project Cars 2. Didn’t bother too much on the framerate though, so I don’t know. But surely no 120fps. I run the 5k+ at 90 usually, never got into optimizin for those racing sims…
So the GPU- frametimes graph stays green and below 11ms always?
You can turn on/off steamVR MotionSmoothing in the steamVR video settings. Honestly i do not know if on Pimax hmds MotionSmoothing is even working at all. I always turn it off and use pimax reprojection method (SmartSmoothing) if i want to.
Try to check the MaxRecommendedResolution settings. I am pretty certain that your SS Resolution is capped by it.
The SteamVRSS resolution you reported is very high. Set the Pitools to 1.0 and try again.
EDIT: According to Sweviver the distortion algorithm needs around 50% extra vertical pixels to get the best visual quality out of the hmd. In your case that would be 1440+ 50%, roughly 2160 vertical pixels. That should be your maximum target. But as i said i doubt your gpu can provide even then steady 90fps…
I didn’t change anything in the file. I checked and the value is 4096. What is the meaning of this value ? What number of pixel, vertical, horizontal ? I’m kinda new with all these VR settings. I miss a good tutorial to learn how to set up all the things properly…
Not 100% of the time, sometimes, with 22/23 cars i can go down to 12ms or 13ms (75 fps) but rarely (when i’m in a big traffic), but it’s okay for me.
Are the GPU-frametimes and fps displayed by FPSvr considering only rendered (real ones) of reprojected also ?
Is there any way to do it for all application ? I can only turn if off for each application and i don’t have Rfactor 2 in the list, neither the right one for Assetto, so i’m afraid i can’t turn if off for my games… I hope there is a way because i would like to try Pitool smart smoothing alone.
Are you talking about SteamVR motion smoothing ? Because as i have smart smoothing off in Pitool and 90fps most of the time i think it works for me as my GPU can’t achieve 90 “real” fps with my settings.
Change it to 16384. steamvr.vrsetting in programsx86/steam/…
Also look for MotionSmoothing and set it to false.
This value represents the maximum total pixels rendered. HorXvert. So as i thought your resolution vas not around 9Million pixels but not even half of that. That is why your gpu could deliver 90fps mostly.
Afaik only real ones. Just look at the frametime numbers. If they are less than double then smartsmoothing to on will give you smooth experience.
If you just start steamvr without any application and go to the video options you can disable it generally
Yes, I do not know if Motion Smoothing even works. You had so much frames because of your 4096 limitation in your ini.
