Help requested: apparently I should be getting better VR performance
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@tomshackell it’s definitely a “known issue” … Seifer (bms dev) writes about it here
https://forum.falcon-bms.com/topic/23978/vr-testing-and-findings/15for some folks, it seems to be related to Win11 and WMR / Virtual Desktop stuff
in general, if you can find a way to shut down anything else that’s interacting with VR or GPU … it’s going to help, not hurt. (I think you mentioned 9+ Gb of VRAM usage … that doesn’t sound like BMS alone)
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@airtex2019 Yup that does perfectly describe it. You rotate your head and the image “stutters” round: exactly what I’m experiencing.
As I say it’s early days for VR in BMS, I’m sure the devs will work it out eventually
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Copying the Reddit reply here:
Hi and thanx for your honest review!
I’m pretty much surprised to hear about performance issues with your HW. Here with a 12700K and 3090 I’m getting pretty good FPS in 4.37 with a G2. I haven’t tested 4.37 THAT much here because I’m mostly developing, but the few times I did in VR I had FPS close to 90. I can also tell you that VR with my HW is fine even on 4.38 with New terrain engine, PBR and more (Fine I mean 30-75 FPS mostly, which is flyable). BTW I’m also sensitive to jitter but here Parallel thread is OK with the headset (SteamVR I think) smoothing on as well, it’s better performance and I can handle it.
However, 2 things come to mind regarding your report:
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CPU may make a difference - I’m saying that because I have a friend in BMS team with AMD CPU and 7900 AMD GPU and he had severe issues in VR, I don’t know if the CPU or the GPU were the problem for him but that’s suspicious. I wonder how your system will work with a Intel MB/CPU instead… I have a feeling it will be much better.
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Wait for 4.37.3 that should be a performance boost for models rendering and easy some load off the CPU (Basically shift many operations done on 3D models from the CPU to the GPU, I think it will help VR, especially at many draw calls situations).
Cheers!
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@I-Hawk said in Help requested: apparently I should be getting better VR performance:
- Wait for 4.37.3 that should be a performance boost for models rendering and easy some load off the CPU (Basically shift many operations done on 3D models from the CPU to the GPU, I think it will help VR, especially at many draw calls situations).
Something is happening in my pants which I cannot ignore.
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@I-Hawk
AFAIK AMD RX 7x00 GPUs had driver-related issues with VR performance. It is supposed to be resolved with latest ones. In general RNA3 gpus are a bit disappointing, a pity because RDNA2/RX 6xx0 were darn good. -
@Flow32 said:
Something is happening in my pants which I cannot ignore.
That’s what I said the last time I shat myself.
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@Aragorn said in Help requested: apparently I should be getting better VR performance:
@Flow32 said:
Something is happening in my pants which I cannot ignore.
That’s what I said the last time I shat myself.
Pulling Gs can have surprising consequences.
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I’m on a 5900X, 32GB RAM, RTX 3080, and a Reverb G2. I’m on Win10.
On the benchmark TE, first package, sitting on the runway, I get 30-35fps on the ground.I wonder if anyone is getting any better performance?
Having said that, I don’t mind so much as obviously this is a worse-case scenario and it’s not very likely I’ll be flying in this setup very often.
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@Atlas that may not be that bad. I’m running an i5-13600KF, 32GB DDR4 3200, Reverb G2, and a 4090. I get 51-52 fps in that benchmark TE with the graphics maxed and fpsVR is telling me it’s CPU bottle necked (it gives both GPU and CPU frametimes which is honestly more intuitive than BMS’s numbers sometimes). So as @I-Hawk is saying, U3 may see more performance increases as it shifts those calls to the GPU since I’m CPU bound in the benchmark TE. The rest of the time I usually have plenty of headroom performance wise and rarely see my framerates drop below 70.
fpsVR maybe something you and @tomshackell may want to look at to hunt down the bottleneck, it’s only $4USD and is really helpful as a performance monitor, especially for VR.
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@Snake122 Yep, got that running as well, and I think it was maybe -1 or -2 fps lower than what the BMS framecounter was saying. I’ll have a better look next time to see if I’m CPU- or GPU-bound.
Would be interesting to see what U3 brings then. I may run some tests before upgrading to U3 to see if there’s any significant benefit.