TED

I'm a bit confused about this. Is it actually possible to install and use VDXR and bypass using steamvr in this way using only openxr or are we talking only about openxr toolkit in VD?

Ah ok. Thanks. I have already installed and use the openXR toolkit. It is a great thing! Waiting patiently for the full openXR integration in that case, so I can get rid of steamvr hopefully.

Can anyone help me with how I actually install and setup VDXR? I downloaded the github files but seems like it's a closed beta and I can't find an actual installation file.

Just pulled the trigger yesterday on a Pico 4. I’ve been using a Pimax 8kx for a few months now and there’s a lot of things I like about it but it was a love-hate relationship. The awful comfort and pain in ass setup as well as strange sweet spot and issues with some slight double vision that I could never completely solve, got me looking at the Pico again. Long story short, it looks like the 8kx will be getting a new home. Love the pancake lenses in the pico. I am really impressed with the Pico. better image than the 8kx, which is something I never would have believed if I hadn’t tried it myself. The lightweight of the pico is such a relief. im running godlike, msaa x2, no asw, 0.5:sharpening. Right now using VD but tried SA as well although it seems like the VD gives better results. Force XR. Im using a 5gz Wi-Fi and works great. id really like to work out how to use VDXR to bypass steamvr completely but doesn’t seem like this is quite ready yet although seems like it’s coming soon.

This . I'm in same boat. I have a pimax 8kx after a g2. It was definitely an upgrade but I do have a bit of a love hate relationship with the 8kx. Fov is great but it's big and heavy and visuals a pretty good but as u say the weight means u can kinda lose the sweet spot. The set up is a pain too. I'm definitely going to be following closely the real world reviews of the q3 as they come out. Alternatively I'll wait for a pico 5 as I'm not in a rush to replace the 8kx yet. It's certainly a good time now for vr development. Prices are coming down, tech is improving rapidly and lots of really interesting features are becoming mainstream.

I’m using a 7900xtx with Pimax 8kx. It’s fantastic. Previously had. 6900xt also zero issues and was very happy with that. Before that a 3080. Run Pimax at full native resolution and all high settings in dcs. Sometimes even over sample, but these days mostly playing dcs liberation/retribution campaigns and absolutely zero problems at native resolution in very busy campaigns with loads of assets and lots of things going on. It’s smooth, no stuttering runs quite cool. I’m never going back to nvidia.

Same for me. 7900xtx with 5800x3d and using Pimax 8kx on full resolution even over sampling sometimes. I had a reverb g2 before that and also worked great. It’s an amazing machine and I’ve had zero problems and great performance. No problem holding 75fps in vr with high settings and if i drop some shadows and other clutter I’ll get 90.

I tried that but it still seems to show in the Pimax play app that smart smoothing is enabled! A bit frustrating but I think I’ll have to delve into the config file and try disable there perhaps.

Anyone know how to switch off motion smoothing in the 8kx? The option does not seem to be available on my Pimax client app. However it does show motion smoothing is on in the bottom left corner, but I cannot switch it off (the closed icon is white and cannot be switched)

I'm using a 7900xtx with pimax 8kx. Performance is fantastic and all at native resolution in 8kx.

Which pimax?

5800x3d

I have 7900xtx and yep runs beautifully on all high settings. I’m only flying vr but rarely get over 15gb vram. No stutters and excellent fps.

No. I tried that but the flickering was too much for me. I'm sticking with 3100x3100 and fps at 60. Its a smooth as can be. Even moving head around and looking to the sides.

So I tested this now too and bumped res up to 3100. A noticeable improvement on image with an expected hit on performance. I was able to manage around 75 fps at this res with 60 fps on the runway. This is with all maxed setting in dcs. Jitters occur when the fps hops up and down. So if I enable throttle fps in openxr toolkit to 60fps in this case (resolution at approx 3100x3100), it is all extremely smooth even very low down and over built-up areas. Really nice combination of fantastic image and smooth performance. So my findings here are that throttling fps in openxr is a great tool to smoothen any jitters. I'm undecided if I prefer stable 90fps at around 2500×2500 or full 3100x3100 at 60fps. Both look fantastic. All of this anyway puts the 7900xtx up into 4090 territory for vr at a fraction of the price.

This is new to me. Everything I've read claims 2160x2160 and every game I've played when everything's set to 100% it shows 2160x2160. I know steamvr at 100% used to show different numbers but never with wmr or openxr. 100% had always been showing 2160.

If I'm not mistaken the g2 is 2160 x 2160 per eye. The openxr toolkit also shows per eye resolution. Add to this openxrdt is set to 110% so it should upscaling each eye by 10%.

I just had a bit of time to test further. Added all shadows to high, msaa to ×2 and openxr developer tools custom res 110%. In openxr toolkit upscaling to 100%. Results largely the same. Still 90fps and good gpu/cpu times. Slight dip to 80 during takeoff but still smooth. After that basically stays at 90 fps. It would seem to me that perhaps many of the issues are not so much amd or dcs but other firmware from hardware, in my case from simapp Pro. Possibly also the new drivers drivers helped. Either way this is absolutely amazing performance and is way beyond what I thought was possible in vr. Even on my g2 the image through thr headset is very close to that on the 2d screen. Below some images of settings and performance.

I am not using motion reprojection. At 90fps, absolutely do not need it. MR would only make the image worse. It is so smooth without it, there is absolutely nothing more to be gained using it.

Yep. Reverb g2 and cpu is 5800x3d.

Since getting my 7900xtx last week I've been testing and tuning. I started another thread and already described the significant upgrade I got over the 6900xt. However I felt it was still being held back somewhere as the gpu was not being well utilised. Today I did 2 things. 1. Updated to latest amd adrenaline driver. 2. Updated simapp Pro then closed it and disabled it whilst playing dcs. I use a winwing setup for f18 with mfd and ufc. As I'm only in vr, I don't care about the display on the ufc as all the buttons still work. Immediately I was getting a constant 90fps on my g2. This is with openxr custom res to 110%. I didn't get much time to push it more but attached are images of settings. I was absolutely blown away by this performance. I can see it can still be pushed a bit more so later will try when I have time. The only time things dip a bit are on the runway looking to the airport side where it dropped to 85. Apart from that low level in the f18 is incredible now. Totally smooth and stutter free. Later i will max all the shadows and then see how it is. After play will increasingly resolution even more and/or msaa.

Fair enough. I actually used to use mr all the time. Couldn't have envisioned not using it, especially whenninused nvidia cards. However I never liked the mushier image it produced. I liked the smoothness though. Through more tuning I found I got at least the same smoothness but with the sharper, clearer image. I tested recently mr on my amd setup in msfs and it worked as it should but locking the frames was just as good for me. I do think however in dcs there is something in wmr that just doesn't work as well as steam for mr. May well be different with the quest however. That I can now get high fps with high graphics settings and locked fps totally negates the need for mr.

Are u using openxr? If so, try without MR and use the openxr toolkit to throttle your frames to half your refresh rate. This may produce much smoother results and u won't suffer the loss from MR. Certainly always worked for me.

Correct. No motion reprojection. I never liked it on any cards, not even on my 3080. This was fine when using steamVR but in wmr generally horrible in my experience. I definitely do not need it anyway. Everything is already so smooth MR would not bring anything to the party.

Update - I managed to hit the nirvana of 90fps in a g2 by reducing shadows a bit. Silky smooth. However would drop a bit lookin out the side at very low level. I now found that just using openxr toolkit and throttling fps to 60, I can use all the shadows and the fps never drops. Latencies on gpu around 9ms. Very very nice indeed. This is far better than i was expecting.