help with low FPS on VR
-
Hi. I went through various posts and documentation regarding my low FPS with VR but i am still confused of whats going on and what actually needs to change.
Specs:
Headset: HP reverb G2
CPU: i5-13600KF
GPU: RTX2080My settings are:
steam VR Resolution Per Eye:100%set g_fVRResolution 1
set g_bEnvironmentMapping 0
set g_bWaterEnvironmentMapping 0
set g_bShadowMapping 0
set g_bVRParallelRenderThread 0Triple buffering OFF
Antialiasing 1Issue:
With almost default settings i am getting around 30-40 FPS while on Korea Theater “Ground operations” training mission. Thats on ramp. I can also tell some stuttering when i move my head.I noticed the following when using fpsVR
- Projection Ratio: 66.4% (RED)
- Some dropped frames
- Average FPS 30
I was able to get higher FPS(50-60) when reducing SteamVR RPE (resolution per eye) down to 50% but yet i still noticed some stuttering.
question:
Is this performance with an RTX2080 normal?You can observe my configuration and fpsVR in bellow images (note, one screenshot has steamVR RPE to 130% :
-
How is it without Motion Smoothing and Advanced Supersample Filtering?
-
@lemonides Hello, I had a setup very similar to yours except it was an i9 9900
same gpu.I remember that ground operation was giving very bad result too.
You will often experience terrible fps on the ground (unless you are the only plane, you can setup a TE and see by yourself)How is it going once in the air or on the landing TE?
That’s a big resolution in steamVR, I would completely disable the antialiasing and reduce the resolution in ssteamVR as low as you can tolerate.
Sadly the ground is very heavy on perfs, I guess that might be optimized at some point
-
How is it going once in the air or on the landing TE?
I havent tried that yet to be honest. So far i just get in the cockpit and observe fps. Which, as you mentioned its not the best place to test your fps …rolf
That’s a big resolution in steamVR, I would completely disable the antialiasing and reduce the resolution in ssteamVR as low as you can tolerate.
I thought that this resolution was the default for the G2. I just googled and it seems that Resolution Per Eye is “2160 x 2160” . I guess i can start from there and work my way up/down.
I was expecting i would have much better perfomance in bms since it is not very demanding in Graphics.
I noticed that when i look outside the cockpit and look at the hangar the motion is very smooth. As soon as i look at the cockpit this is when stuttering starts to happend.
I just need smooth motion with some decent resolution. I had a pixeled environment in DCS in order to fly with VR so i am hoping i will not have to do same for bms.
How is it without Motion Smoothing and Advanced Supersample Filtering?
Its the same unfortunately
I dont remeber have such perfomance when i installed bms… if i recall correcly it was pretty smooth. Only thing i change the last few days was to update GPU drivers -
@lemonides Honnestly I’ ve had bad perf on the ground in bms and then most of my flight was nice and fluid.
Question is, what are you able to trade in terms of ground fps vs visual in flight…
-
@lemonides said in help with low FPS on VR:
set g_bVRParallelRenderThread 0
Try
set g_nAdditionalWorkers -10 set g_bVRParallelRenderThread 1
-
@lemonides Honnestly I’ ve had bad perf on the ground in bms and then most of my flight was nice and fluid.
You were right! I did the following:
- Decrease RPE to ~48% to be close to the resolution of G2
- Antialiasing to 1
- new TE mission with just my aircraft
FPS was constantly at 90, but in the cockpit I could hardly read side panel labels.
I started increasing the fVRResolution and managed to reach 1.3 . Anything after that i have stuttering . Indeed in the air it stables at 90 FPS.
I noticed that when my FPS drops below 80 it is when I start see stuttering (around 70).
Question is, what are you able to trade in terms of ground fps vs visual in flight…
To be honest, I am not really interested in ground FPS. For me, it is more important to have smooth flight with stuttering and a readable good-looking cockpit
Is the fVRResolution the setting that would make the cockpit more readable/smooth?
@lemonides said in help with low FPS on VR:
set g_bVRParallelRenderThread 0
Try
set g_nAdditionalWorkers -10 set g_bVRParallelRenderThread 1
Roger, will try that now
-
@lemonides Have you tried the G2 at 60 hz?
-
14 minutes ago
@lemonides Have you tried the G
No, i dont know how to do that. in steam VR i dont have that option
-
@lemonides i’m not on pc, but if memory serve is a setting of the windows mixed reality software. At first can be a bit nauseating, but after some time this effect disappear and the fps gain remain.