Oasis Driver, Reverb G2 and Sturmovik

[phraktal]

I'm planning to do some flying over holidays and I'm trying to make my reverb g2 work since WMR is gone. I used OpenComposite with OpenXR stuff with great results before, getting easily 90FPS with high settings.

With the new pipeline (Oasis, SteamVR), I'm having a lot of issues and I can't figure out what's wrong. After lowering my il2 settings to minimum I barely get 80 FPS and I'm busing 11.1ms in SteamVR performance monitor all the time. 

Any g2 users that are getting good performance with Oasis ? I have RTX3070 and I7.

Any tips ?

[TCW_Brzi_Joe]

What was your settings before in OpenXR_Toolkit? Did you used scaling, FSR, NIS or CAS sharpening? Which resolution? You can achieve same or similar in OpenVR with Oasis, just tell us what you did before.

PS: it is possible that you have some issue in windows/nvidia-amd/steam/oasis settings, but it is rare case.

Edited December 12, 2025 by TCW_Brzi_Joe

[Joch]

I have a G2/OASIS and getting solid 90 fps with High settings, 2xFSAA, but with a 5070 ti.

Assuming OASIS was installed correctly, one thing you can tweak are the Steam VR settings. The standard Steam resolution of 100% is roughly 150% of the G2 native eye resolution, which means pushing out a lot of pixels and in DCS, I was having trouble maintaining a steady 90 FPS. I have my resolution set at 72% which is roughly equal to the G2 native resolution. It is still clear enough to easily read the in cockpit instruments and I was able to turn off motion smoothing/reprojection. IL2 runs butter smooth with no stutters, not even during hard maneuvering or quickly looking side to side.

[mak]

Hello, can you tell me the Oasis driver settings?

[Stout]

I'm using i5 14600K and RTX3060ti and getting a stable 90FPS in Ultra mode. Most settings on max except mirrors and shadows. Clouds on medium. Antialliasing OFF! 

I'm getting better results with WIndows 11 and Oasis than I had in Windows 10 with Open XR Tools.

Can XNRS Necksafer be used with Oasis drivers without installing OpenXR Toolkit?

[Panthercules]

On 12/20/2025 at 7:06 AM, mak said:

Hello, can you tell me the Oasis driver settings?

Is there even such a thing?  I just started using Oasis, but I haven't found any trace of a screen or place to show any settings specific to Oasis itself - just the screen for the SteamVR settings.

[Panthercules]

I'm in pretty much the same boat as the OP, just trying to get back into setting up my Reverb G2 to work with Oasis and Flying Circus/GB.  I remember doing a lot of experimenting a while back with OpenXR, VRNeckSafer and other stuff but I don't really remember what settings or combination of programs I wound up using before, and everything has changed so much since then between hardware, Windows, game and driver updates, etc. that none of that old stuff would probably be very relevant today anyway.  I basically need to start over again, so I was wondering if there is a consensus these days as to exactly how one should set up VR from scratch at this point for best results in FC/GB.  I'm using the following:

HMD:  HP Reverb G2

CPU: 12th Gen Intel(R) Core(TM) i9-12900K

GPU: NVidia GeForce RTX 3090

Windows:  11 Home 25H2

[mak]

9 часов назад, Stout сказал:

Я использую процессор i5 14600K и видеокарту RTX 3060ti, и получаю стабильные 90 FPS в режиме Ultra. Большинство настроек на максимуме, кроме зеркал и теней. Облака на среднем уровне. Сглаживание отключено! 

В Windows 11 и Oasis у меня получаются лучшие результаты, чем в Windows 10 с Open XR Tools.

Можно ли использовать XNRS Necksafer с драйверами Oasis без установки OpenXR Toolkit?

vrNeckSafer for steamvr

5 часов назад, Panthercules сказал:

А такое вообще существует? Я только начал пользоваться Oasis, но не нашел ни одного экрана или места для отображения настроек, специфичных для самого Oasis — только экран с настройками SteamVR.

I meant the settings in Steam VR

[mak]

In Steam VR, set the resolution to 70%, and leave it like that for playing in another tab. This will give you the helmet's native resolution and reverb.

Buy FPSVR on Steam, it's a very good program.

[mak]

10 часов назад, Stout сказал:

Я использую процессор i5 14600K и видеокарту RTX 3060ti, и получаю стабильные 90 FPS в режиме Ultra. Большинство настроек на максимуме, кроме зеркал и теней. Облака на среднем уровне. Сглаживание отключено! 

В Windows 11 и Oasis у меня получаются лучшие результаты, чем в Windows 10 с Open XR Tools.

Можно ли использовать XNRS Necksafer с драйверами Oasis без установки OpenXR Toolkit?

What are your settings in Steam VR? I also use Oasis

[Panthercules]

On 12/29/2025 at 2:28 PM, Stout said:

Can XNRS Necksafer be used with Oasis drivers without installing OpenXR Toolkit?

I'm not really sure what the differences are between XNRS Necksafer and VR Necksafer - I've never used XNRS Necksafer but I was using VR Necksafer before Windows got rid of WMR and it seems to be working now with my Reverb G2 and Oasis, without any additional toolkits needed.

[Panthercules]

Well, at least it was working for me.  Unfortunately, for some reason VR Necksafer stopped working for me today, and I haven't been able to figure out how to make it start working again.  I didn't make any changes to VR Necksafer since it was working, but I did tweak a few in-game graphics settings.  But since it stopped working I've messed with some of the VR Necksafer settings trying to get it working again (without success), so I've probably hosed something up.  Could someone maybe post the correct/best settings for VR Necksafer to work with the Oasis driver so maybe I can get it working again?

I've also tried to get XR Necksafer working, since I found a lot of confusing/ambiguous info via AI/Googling as to which version of Necksafer you should be using with the G2 and Oasis driver, but I couldn't get that to work either.  The game is looking awesome now and keeping a real solid 90 FPS, but now with Necksafer not working it's pretty useless because I can't really dogfight effectively without being able to check my six. So frustrating, since that part was working so well just the other day.  😡 

Anybody out there got it working and got any suggestions on what might be going wrong or how to get it working again on my rig? 

Edited January 2 by Panthercules

[Stolle]

I am currently using the oasis driver with the openxr api. I use the per game installation (not open composite)  and I have disabled the openXR toolkit. I also have XRnecksafer working with this set up.

[Panthercules]

On 1/2/2026 at 11:11 AM, Stolle said:

I am currently using the oasis driver with the openxr api. 

What does this mean?  I have not seen any reference in the Oasis driver setup (or the SteamVR settings) for using or not using the "openxr api".  Where does the "openxr api" come from, and how does one install it?  Then how do you tell the Oasis driver to use it?

  

On 1/2/2026 at 11:11 AM, Stolle said:

I use the per game installation (not open composite)

What does this mean?  I don't use (and have never used) open composite, but in what application are you using the "per game installation" and how do you get to that setting to tell it to use that?

 

On 1/2/2026 at 11:11 AM, Stolle said:

I have disabled the openXR toolkit

What does this mean?  I have never installed the openXR toolkit (and when I looked for it online I saw big warnings that it had been deprecated and should not be used at this point).  If you haven't installed it do you still need to disable it, and if so, how and where do you do that?

 

I appreciate your prompt response, but unfortunately it isn't conveying the useful info that I need.  I hope you don't mind addressing the specific questions above - but it's certainly a hopeful sign that at least someone seems to be making this work somehow.

Edited January 3 by Panthercules

[Stolle]

Sorry Panthercules I thought you were familiar with using openXR and open composite in Great Battles. Essentially I installed an alternate openvr_api.dll file into the game. To do this I use JSGME to substitute the dll file into the  bin/game directory. Using JSGME allows me to switch back to the original openvr_api.dll file if needed. The directions and the file are available here:https://gitlab.com/znixian/OpenOVR/-/tree/openxr/ scroll down to the instructions for per game installation. (use the 64bit version) The only reason I still use this is to get XRnecksafer (version beta5a) to work in game. I had XR toolkit installed previous to switching to the Oasis driver. Instead of uninstalling it I used the option in the program to disable it. 

My specs 

CPU: 11900K

GPU: 3080ti

Win 11pro 25H2

[mak]

XR Necksafer работает только в стим вр VR Necksafer в OpenXR Toolkit в обход стим вр теперь с выходом Oasis OpenXR Toolkit не нужен попрубйте удалить XR Necksafer и снова установить