VR MT - OpenXR - OpenVR - SteamVR

[BIGNEWY]

Currently DCS VR in multithreading only uses the openXR runtime for VR

Please let us know which runtime you use and why. 

 

[Matrix9]

OpenXR is more widely supported, and provides (for me) the best performance for WMR and Reverb G2.

[unlikely_spider]

Weird. I have a G2 and a 4080 and SteamVR gets me better performance. I can't even run MSFS that well due to its OpenXR requirement. In DCS and MSFS I get bad stuttery double vision with OpenXR, even down to 70% resolution. In Steam I can run it at 90%.

Any PMs that can help me would be appreciated, to keep this thread uncluttered!

Edited May 31, 2023 by unlikely_spider

[Scoop]

OpenXR for me to, as with every MT update it gets better and better. G2

[Sile]

Shouldn't the question be formulated "Which VR API do you like to use"?
Anyway. See what you mean.

I'm fine with OpenXR API in MT.

Edited May 31, 2023 by Sile

[desolunatic]

I like to use both OpenXR and OpenVR - OpenXR for streaming thanks to the head smoothing option, OpenVR for off-stream flying with reshade.

[mustard7550]

OpenXR as I'm a G2 user

[Greekbull]

For those that are trying to stick with OpenVR for Reshade you can get the same effect with some tweaking using 3Dmigoto with OpenXR...then you get the best of both worlds!  Best frames and visuals!

[Flyingfish]

Open VR for me. I use a quest pro and it's smoother using open VR 

[dburne]

Open XR.

Why? I can run DCS with dynamic foveated rendering/eye tracking using @mbucchia 's  wrapper for the Aero.  Please do not do anything to change this (quad view which Aero supports in Open XR). Made a big difference for me in performance allowing me to crank up graphics nicely.

Edited May 31, 2023 by dburne

[Mk1_Trebuchet]

Open XR. G2 - Better performance, and more tweaking with the toolkit.

[MoleUK]

The MT build actually still supports the Oculus runtime on VD on the Quest 2, to clarify.

Personally I've been using OpenXR via oculus link and having pretty solid performance, as I have been having problems on VD on the oculus runtime (nothing to do with DCS I don't think) for a few weeks.

Do have some odd issues where FPS gets wonky for a bit at random times and the view lag behinds (feels like vram/asw problems but not sure), and big fps drops while on the menu. These don't happen on the oculus runtime via VD however.

Edited May 31, 2023 by MoleUK

[SgtArmyGuy]

As a Vive Pro 2 user I'm stuck with SteamVR, since the obligatory Vive Console used to drive the VR goggles functions only through it.

[Greekbull]

2 minutes ago, SgtArmyGuy said:

As a Vive Pro 2 user I'm stuck with SteamVR, since the obligatory Vive Console used to drive the VR goggles functions only through it.

I’m pretty sure you can run the Vive Pro 2 through OpenXR.  

[SgtArmyGuy]

2 minutes ago, Greekbull said:

I’m pretty sure you can run the Vive Pro 2 through OpenXR.  

It cannot. They specifically say it's limited to SteamVR. https://service.viveport.com/hc/en-us/articles/4423262844813-How-to-setup-correct-OpenXR-runtime

Probably because of this, I cannot run the MT version in VR properly. The result is this: https://forum.dcs.world/topic/324309-slideshow-level-stuttering-and-frametime-oscillation-in-vr-vive-pro-2-wireless-adapter/#comment-5201954

[ironhard]

Oculus.

[mbucchia]

25 minutes ago, SgtArmyGuy said:

It cannot. They specifically say it's limited to SteamVR. https://service.viveport.com/hc/en-us/articles/4423262844813-How-to-setup-correct-OpenXR-runtime

Probably because of this, I cannot run the MT version in VR properly. The result is this: https://forum.dcs.world/topic/324309-slideshow-level-stuttering-and-frametime-oscillation-in-vr-vive-pro-2-wireless-adapter/#comment-5201954

The question in the thread is highly ambiguous because SteamVR can be used through either OpenVR or OpenXR... so anyone picking SteamVR as the answer could mean either OpenVR or OpenXR...

Cc @BIGNEWY, because I feel the question is poorly asked.

[robgraham]

OpenXR, it's natively supported by WMR and SteamVR allowing for the use of either API, it runs a lot smoother for the reverb through the WMR native interface.

Like mbucchia I think there needs to be slightly better wording on the question and or maybe an explanation as some people honestly do not understand how their VR works they just know they use SteamVR or the mixed reality portal etc.

Fairly certain though that almost all headsets now support OpenXR either natively in their own runtimes or using SteamVR.

 

[mbucchia]

12 minutes ago, robgraham said:

Fairly certain though that almost all headsets now support OpenXR either natively in their own runtimes or using SteamVR.

That's 100% correct yes.

[diamond26]

As a Quest2 user I’ve seen improvement in performance with MT and OpenXR but OpenVR at night conditions is still better.

[BIGNEWY]

55 minutes ago, mbucchia said:

The question in the thread is highly ambiguous because SteamVR can be used through either OpenVR or OpenXR... so anyone picking SteamVR as the answer could mean either OpenVR or OpenXR...

Cc @BIGNEWY, because I feel the question is poorly asked.

Added more options to the poll

[Sile]

doesn‘t make it better, I fear 

[ricktoberfest]

Oculus. I tried with openxr but it doesn’t track well or have as good performance so I forced oculus. 

4 hours ago, BIGNEWY said:

Currently DCS VR in multithreading only uses the openXR runtime for VR

Please let us know which runtime you use and why. 

 

Why no oculus option?  I’m on a rift S

[mbucchia]

31 minutes ago, ricktoberfest said:

Oculus. I tried with openxr but it doesn’t track well or have as good performance so I forced oculus. 

Why no oculus option?  I’m on a rift S

Oculus mode (OVR) is now deprecated, and even Oculus themselves don't want developers to keep using it. I would not expect anyone in 2023 to keep writing/maintaining support for Oculus mode in their app. ED is doing the right thing here.

If you have issues with OpenXR and the Oculus runtime (or perhaps Virtual Desktop), you need to report them to Oculus or to GGodin, this is the only way things can be improved. My 2c.

[Nodak]

G-2 user, OpenXR because of the complete package with the toolkit and all it's adjustments.   MT makes it rip, icing on the cake, DCS has never run this good on my system.