VR Performance Tweaks & Tips

Yes, Raceroom only utilizes one thread, so it's quite easy to be bottlenecked by your CPU, and CPU will never show 100% usage.

 

Even that one core won't be used at 100% as there is some magic going on with CPUs

Anyone using OpenComposite - did you stumble across issue that causes the game to crash if you try to switch to other app (Alt-Tabbing)? It reads "Expression is false unexpectedly". I think it started to happening after fresh Windows install and move from Win10 to Win11, but could also start happening a little bit later


This is what's in log:

Code:

15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:136    - Wolf's Open Composite (TIWM fork) version: 1.0.1.0

15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:138    - Requested configuration:
15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:139    - supersampleRatio=1.300000
15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:140    - enableLayers=true
15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:141    - enableCubemap=false
15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:142    - threePartSubmit=true
15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:143    - useViewportStencil=true
15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:144    - postInitCmd=""

15:37:16.231 TID:0x1308    TraceStatrtupMsg  Line:145    - dx10Mode=true
15:37:33.304 TID:0x1308    VR_InitInternal2  Line:319    - Runtime initialized successfully.

15:37:33.304 TID:0x1308    CVRSystem_012::CVRSystem_012  Line:300    - Created.
15:37:33.304 TID:0x1308    CVRRenderModels_005::CVRRenderModels_005  Line:1076    - Created.
15:37:33.304 TID:0x1308    CVRCompositor_016::CVRCompositor_016  Line:20    - Created.
15:37:37.040 TID:0x1308    CVROverlay_013::CVROverlay_013  Line:602    - Created.
15:37:37.040 TID:0x1308    BaseOverlay::CreateOverlay  Line:116    - New texture overlay created "overlay.Menu" "Menu"
15:37:37.040 TID:0x1308    BaseOverlay::CreateOverlay  Line:116    - New texture overlay created "overlay.HUD" "HUD"
15:37:39.270 TID:0x1308    BaseCompositor::CreateCompositorAPI  Line:362    - Creating new Hybrid DX11 Compositor
15:37:39.271 TID:0x1308    DX11HybridCompositor::Invoke  Line:74    - Generating new swap chain
15:37:39.275 TID:0x1308    BaseCompositor::CreateCompositorAPI  Line:362    - Creating new Hybrid DX11 Compositor
15:37:39.275 TID:0x1308    DX11HybridCompositor::Invoke  Line:74    - Generating new swap chain
15:37:39.283 TID:0x1308    BaseCompositor::CreateCompositorAPI  Line:362    - Creating new Hybrid DX11 Compositor for layer use
15:37:39.283 TID:0x1308    DX11HybridCompositor::Invoke  Line:74    - Generating new swap chain
15:37:52.152 TID:0x1308    oovr_abort_raw  Line:48    - Abort!
15:37:52.152 TID:0x1308    DX11HybridCompositor::Invoke  Line:67    - Expression is false unexpectedly

Besides that, it works perfectly fine, it's just annoying when I can't check anything outside the game


EDIT:
Found out what was causing it - NVIDIA G-Sync.

 

Interesting. Also, and please forgive the dumb question, but OpenComposite still only works with non-WMR headsets in Raceroom, correct? Just want to make sure I didn't miss anything.

 

Oh, I wrote "one core". It's incorrect, it's "one thread". Because that thread isn't locked to one core by default, Windows can move it between cores. That's why, as Rad said, you won't see 100% usage on one core anyway.

 

I believe so. The one listed in first post wasn't updated for 3 years and apparently the original Open Composite doesn't work with RaceRoom - at least it's listed as broken in compatibility list

 

I did some more testing last night, and it seems like I end up dropping down just a few FPS from 90FPS in those sections of Spa you mentioned despite playing with various settings. This seems to happen even if I drop to 4xAA or drop the number of cars rendered. SteamVR resolution doesn't effect it either. Granted, these are primarily GPU related settings that I changed. Is it realistic to expect a locked 90FPS in Raceroom? If so, which setting/s would you suggest changing next? Thanks!

 

I cant even get R3E too start in VR using SteamVR on my Reverb G2. It just starts to the little Raceroom screen and hangs there for as long as i can wait. Waited 10 minutes today, went got a drink , hung a piss and still that little Raceroom screen is there. What's the trick these days to start R3E?

 

you have to use your mouse, just click on the screen. btw make sure that raceroom is in the foreground / focus

 

This is what i have indefinitely.
I start Steam, click R3E, set to SteamVR and this is the only screen i get. I click it, it just says R3E isnt responding, close or wait.

 

Is it the same on a monitor? If yes, it looks like a connection routing issue. Try a VPN if you can.

 

It seems i need to use 32 bit SteamVR. It now works. Thanks for you help. But is 32 bit correct or is there another issue not allowing 64 bit to work.

 

I had same problem and much time spent looking for the cause I discovered it was likely a setting in Pimax software that forced on foveated rendering. Now is working also in 64bit. For info of Pimax users you can turn off parallel projection as well.

I tried to get a few different OpenVR/Open Composite mods working to bypass SteamVR in the hope of more fps but seems none of them will work with Raceroom. I tried the older ones that work with AMS2 & rF2.

Has anyone found any such mods to get more Frames ?

 

hello
bought a 2nd hand QUEST2 like 2 months ago and finally today decided to fire up the Game in VR

Through STEAMVR I was getting poor performances. I am running this Simracing games machine with a 5800X3D and 6800XT so pretty decent system, all set at 90Hz and High resolution that would be very smooth in my other Games like AC,ACC,AMS2 and RF2 but then I got 30fps with terrible textures flickering on top. Unplayable

Then decided to look into compatibility via Opencomposite that i use with my other SIMS and bumped into this thread.

The Game would not even start and I am getting this crash report in the attachment




I understand RRE is not compatible with system wide opencomposite so I put the openvr.dll in the right folder and even created the opencompsoite.ini file with some content found in the 1st post here

but still same crash

anyone kind enough who could guide me to how to fix this issue?

 

Yeah i haven't been able to get R3E to work properly in VR with OpenXR.

 

thanks for your reply. just to be clear, yours also crashed or can you actually launch a VR session at all?