[5.1p2] What's the official state of openxr ?

Development Programming & Scripting
1

Hi,
I’m trying to understand how vr works in a mini cpp project.
I’ve a quest 2 + virtual desktop, used through steam vr. And i’m using UE5.1 preview 2.
So i know i’m looking for trouble and i don’t expect a smooth experience, but i’m just trying (btw, this setup, with an RTX 2070, works reasonnably well with steam vr games, so i know the hardware works fine).
Now, the plugins panel says that steam VR and oculus VR plugins are deprecated and that i should use OpenXR only.
but:

  • When i enable openxr only, i get some crazy stuff: about 1 fps, flickering image/pitch black, and the image displays everytime a random angle.
  • When i enable steam&oculus vr, the image is stable and i get ~10-20 fps, which is more or less what i expect, but then the oculus controls are not recognized.

Is this (not too good) experience normal in the current state of VR within the UE Editor ?

Am i missing some key option that will magically smooth openxr ?

And more importantly, is openxr becoming the norm in a near future (5.1 stable / 5.2 ?) or will the steam&oculus vr plugins stay “deprecated” for a long time ?

Just to know where i’m going with my dev and what to expect officially in the near future.

Thanks :slight_smile:
Cedric

2

Last I knew the official word on VR was “use 4.27”. Which also recommends using OpenXR over the vendor specific plugins.

3

For anyone bumping here (still on 5.1 preview 2).
It seems that the Steam OpenXR runtime doesn’t work well with the quest 2.
I started using the OpenXR runtime from the oculus app instead and it works fine.

So in short to get a quest 2 work with openxr on 5.1 preview 2:

  • In your project, activate only the openxr plugin (steam vr and oculus vr can stay unchecked).
  • Install the oculus app, then configure and use air link.
    Since i had to relaunch and reuse the occulus app (which i tried to avoid), i stopped using virtual desktop at dev time, didn’t try to reenable it atm so i don’t know if it works or not with that setup.

Cheers
Cedric

5

It’s the same for Unreal Engine 5.1 main release