Fresh XP12 install.  Beefy PC w/ 4080 & 12900.  Using Reverb G2 which works great in other sim.  However, in XP I’m getting very choppy performance, low frames & seems to want SteamVR to even run correctly (selecting “use OpenXR” at the menu results in hang / cannot exit , etc).  Sim runs good in 2D.  
 

Help /tips appreciated.  

Can't help with G2 as I barely made My Quest 2 to work with XP12, with bunch of tweaking. Using OpenXR Toolkit to allow foveated rendering, and reducing FOV in Oculus Debug Tool helped a lot. But still, it's far from VR smoothness and general performance I get in XP11, so sadly I gave up and uninstalled XP12 last night. Will wait few months until they actually work on fixing VR performance in the sim, probably will happen after they release more important fixes.

P.S. be sure to add "-open_xr" in the command line, it should look like this:

"G:\X-Plane 12\X-Plane.exe" -open_xr

Edited October 8, 20241 yr by Pe11e

I'm running an i7-9700K with an RTX3060. With the -open_xr switch I have great performance in VR with my Reverb G2. I have to admit though that with 12.1.2 RC3 release, my performance did go down a little, haven't tested wit RC4 yet. And I'm on Windows 10.

On 10/7/2024 at 5:00 PM, joby33y said:

Help /tips appreciated.

https://forums.x-plane.org/index.php?/forums/topic/294244-my-contribution-to-the-community-after-much-tinkering-around/

"With the settings shown below, I am able to run XP12 at a rock solid 45 FPS in VR and it runs amazingly smooth with minimal shimmering and little aliasing. Sim looks as good as ever. I'm finally extremely happy and can just enjoy the sim by flying and less tinkering around"

unfortunately, and for whatever reason, x-plane does not, after years of updates etc. provide a simple separate setting (unlike the other simulator), one for 2D and one for 3D-VR. this would take even a beginner programmer only a few hours to implement. therefore you have to change these graphic settings each and every time you go from 2D to VR and back. aren't we glad they sent a developer to St.Barth to analyze ship traffic instead.

Edited October 8, 20241 yr by turbomax

6 hours ago, turbomax said:

unfortunately ...does not, after years of updates etc.... one for 2D and one for 3D-VR

I concur (?!)

 

6 hours ago, turbomax said:

aren't we glad they sent a developer to St.Barth

Now now. Keep your shirt on (get it??). He's not exactly a dev.

I'll take the opportunity to ask: What about the setting for the field of view ? Does it apply to VR mode ? I mean, if we use a VR headset which is said to have 110° of FOV, should we set the field of view setting in XPlane to 110, or is it not necessary ?

1 hour ago, Daube said:

I'll take the opportunity to ask: What about the setting for the field of view ? Does it apply to VR mode ? I mean, if we use a VR headset which is said to have 110° of FOV, should we set the field of view setting in XPlane to 110, or is it not necessary ?

fov in VR is set by the headset driver, there is no easy way to change it.

Edited October 9, 20241 yr by mSparks

Hmm I'll have to take a closer look next time. I clearly had the impression that this setting was impacting the final rendering in the headset, and that a wrong value could in fact limit my field of view, or maybe result in some unwanted zoom level. I'll give it another try asap.

Edited October 9, 20241 yr by Daube

18 hours ago, turbomax said:

https://forums.x-plane.org/index.php?/forums/topic/294244-my-contribution-to-the-community-after-much-tinkering-around/

"With the settings shown below, I am able to run XP12 at a rock solid 45 FPS in VR and it runs amazingly smooth with minimal shimmering and little aliasing. Sim looks as good as ever. I'm finally extremely happy and can just enjoy the sim by flying and less tinkering around"

I tried those settings. Those settings look terrible. And my FPS went from 40-45 to 30ish. It did seem less Suttery with fewer shimmers.

Xplane is a shimmering, stuttering mess in VR. Somebody wake me up in a year or two when there is an update.

10 hours ago, strider1 said:

Xplane is a shimmering, stuttering mess in VR. Somebody wake me up in a year or two when there is an update.

I was unable to maintain 20ish FPS in VR with 12.0.x, but somehow 12.1 cured that and now I got soiled 30~40.

19 hours ago, strider1 said:

I tried those settings. Those settings look terrible. And my FPS went from 40-45 to 30ish. It did seem less Suttery with fewer shimmers.

Xplane is a shimmering, stuttering mess in VR. Somebody wake me up in a year or two when there is an update.

VR perf is still fairly temperamental, but for the most part its now great. 

render resolution: This is a VR driver setting, defaults to like 150% most places Ive seen, but Ive found XP really doesnt like much more than 80%.

SteamVR: make sure you enable vulkanasync on Linux - dunno if windows has a similar setting, but this one makes a huge difference.

shimmering: higher render resolution and AA fixes it, but both hits frames hard, real nasty trade off there with other settings.

Settings in general: I start xplane with a script that copies in either VR settings or high quality settings for 2D (max everything..) before starting xplane (and monado for VR), decent workaround for missing ui options, possible on windows even if making it is much harder than linux (or mac, but no VR on mac so not as relevant). Ortho makes a huge difference to the settings you can run (which is a pain if you fly into an area without ortho). Settings for VR for me are much lower than I can get in 2D, but with my 5900X and RTX3070 they are still high enough to be very convincing, especially with ortho countering a reduced render distance.

Aircraft: Many aircraft - especially payware ones are completely unusable in VR due to a history of "25fps is plenty" mentality and their plugins nuking xplanes ability to render faster than that. There is no workaround to this other than pestering the dev to fix it. Get things set up satisfactorily in the default C172,  then find if other aircraft in your hanger will work in VR - if they don't, no amount of tweaking settings will get them working.

Thanks.  I am able to get decent performance now, had to turn AAliasing & render distance down.  Fair enough, but now cannot easily switch out of VR back to 2D.  Clicking ‘Disable VR ‘ is completely unresponsive.  Wish we could just assign a hotkey to switch in & out like the others.  
 

I paid $79 for this sim, thinking they’d made great strides with the product, and looking forward to their ‘better’ flight model.  What a massive disappointment.  

6 minutes ago, joby33y said:

Clicking ‘Disable VR ‘ is completely unresponsive.  

thats a bug in steamvr iirc... often steamvr would completely nuke my desktop, I don't have either problem since switching to monado.

6 minutes ago, joby33y said:

 Wish we could just assign a hotkey to switch in & out

You can,

Keyboard->Operation->VR->Toggle enabling of VR hardware.

I use insert because it's easy to find with the headset on.

Edited October 10, 20241 yr by mSparks

3 hours ago, joby33y said:

Clicking ‘Disable VR ‘ is completely unresponsive.  

Same here, clicking "Disable VR" is completely unresponsive, as mSparks said above, I had to assign a key to switch in & out.

I have a Pimax Crystal Lite and it certainly is a hot mess for VR in XP12.

My previous Reverb G2 in XP11 was far better.

Apparently Laminar has put very little effort into VR.