VitS

30 fps can be locked in SteamVR for Index and in Oculus Tray Tool for RiftS/Quest2.

I didn't own AMD card in years, so no idea if it is general problem. All modern implementations of reprojection (Oculus/Valve/WMR) rely on GPU drivers to predict how objects move. So its most definitely drivers problem. Let's hope AMD will fix it soon.

Not me. Same as before, problems with reprojection.

On Index you might even try running with fixed throttling settings it 30 fps. With that I am able to run 150% with 4xMSAA which completely removes damn jaggies which I hate so much

This reprojection ghosting is definitely something inside DCS engine. Oculus, SteamVR and WMR all have this ghosting. Even settings supersampling to super lower value, so low that frametime is about 2ms, and forcing motion reprojection results in ghosting. So it's definitely not CPU problem. Not to say that other games don't have that.

Yes, I am using VR preset just for these tests. Overall 6900XT is a beast. For VR, though, its more or less equal to 3080. 3090 is on another level though. But 3090 is 2k euro GPU these days, while 6900XT is around 1400.

After some overclocking: Index 270% SS (3312x3680) fpsVR Report: App: DCS World OpenBeta HMD: Index (90.003 Hz, IPD 63.0) GPU: AMD Radeon RX 6900 XT (27.20.14527.2002) CPU: AMD Ryzen 5 5600X 6-Core Processor Delivered fps: 78.62 Duration: 3.9min. Headset was active: 12% GPU Frametimes: Median: 11.9 ms 99th percentile: 16.5 ms 99.9th percentile: >30 ms frametime <11.1ms(vsync): 5.9% CPU frametime: Median: 12.1 ms 99th percentile: 19.5 ms 99.9th percentile: 24.8 ms frametime <11.1ms(vsync): 41.3% Reprojection Ratio: 95.9% (for Index/Vive/VivePro headsets only) Dropped frames: 5 or 0.0% (for Index/Vive/VivePro headsets only) Max. SteamVR SS: 270% Render resolution per eye: 3312x3680(by SteamVR settings, Max.) (HMD driver recommended: 2016x2240)

Index 100% SS (2016x2240) fpsVR Report: App: DCS HMD: Index (90.003 Hz, IPD 63.0) GPU: AMD Radeon RX 6900 XT (27.20.14527.2002) CPU: AMD Ryzen 5 5600X 6-Core Processor Delivered fps: 85.44 Duration: 3.2min. Headset was active: Unknown GPU Frametimes: Median: 5.8 ms 99th percentile: 10.9 ms 99.9th percentile: >30 ms frametime <11.1ms(vsync): 99.4% CPU frametime: Median: 7 ms 99th percentile: 13.5 ms 99.9th percentile: >30 ms frametime <11.1ms(vsync): 97.1% Reprojection Ratio: 8.0% (for Index/Vive/VivePro headsets only) Dropped frames: 0 or 0.0% (for Index/Vive/VivePro headsets only) Max. SteamVR SS: 100% Render resolution per eye: 2016x2240(by SteamVR settings, Max.) (HMD driver recommended: 2016x2240) I also ran another test bumping SS to 270% to more or less match Pimax 8kx resolution from original test Index 270% SS (3312x3680) fpsVR Report: App: DCS HMD: Index (90.003 Hz, IPD 63.0) GPU: AMD Radeon RX 6900 XT (27.20.14527.2002) CPU: AMD Ryzen 5 5600X 6-Core Processor Delivered fps: 71.73 Duration: 3.2min. Headset was active: Unknown GPU Frametimes: Median: 12.1 ms 99th percentile: 15.1 ms 99.9th percentile: 15.7 ms frametime <11.1ms(vsync): 1.4% CPU frametime: Median: 11.6 ms 99th percentile: 18.5 ms 99.9th percentile: >30 ms frametime <11.1ms(vsync): 46.3% Reprojection Ratio: 23.6% (for Index/Vive/VivePro headsets only) Dropped frames: 4 or 0.0% (for Index/Vive/VivePro headsets only) Max. SteamVR SS: 270% Render resolution per eye: 3312x3680(by SteamVR settings, Max.) (HMD driver recommended: 2016x2240)

It happened to me as well, 3090's performance was garbage. Doing clean reinstall of Nvidia Drivers and also resetting MSI afterburner settings did the trick.

SteamVR supersamling affects that. Make sure that you have global 100%, per-application for dcs 100% and 1.0PD in game. See if this fixes your problem

I think its an issue with nvidia drivers. Rolling back drivers helps, but for 3080 is not an option...

Welcome to the wonderful world of AMD Drivers

I didn't believe this could happen, but the day has come. DCS runs at 90 fps in VR, doesn't have any jaggies and I can read every single thing in cockpit. These were truly wonderful times!

It was addressed multiple times that modern tools can not detect actual VRAM usage and display reserved ram instead. It is one of those misleading readings that don't actually affect performance at all.

That's quite interesting results. I tested DCS with both 3080 and 6800xt, but 3080 was consistently faster than 6800xt. Did you undervolt 3080?

Also try to measure FOV with facial interface removed. I get 20 degree better horizontal FOV with facial interface removed My only hope is that VR Cover will release some improved facial interface for g2

Great, thanks. We still have hope! I am testing Quest 2 while waiting for my G2. And to get good picture with Q2 I need to bump PD all the way to 1.7, it looks like shit otherwise.

Thanks for reply! Can you please also check, does picture look much better with high SteamVR SS (like 200% for example). I was expecting that with such high resolution HMD SS won't be needed. Just like on flat 1440p monitor. Difference between having 4xMSAA and having no MSAA at all is really minor.

Can you confirm that shimmering is really gone? It looks like despite high resolution we still need to use high levels of Super Sampling (like 150% steamvr ss) to have 1:1 pixel mapping in the center of the screen.

Legacy reprojection mode is simply locking fps to 45, without trying to predict in-between frames.

Only CPU optimization that really works is removal of shitty RGB control software. Everything else is placebo

Saying "The human eye cannot detect more than 24 fps" is same as saying "in US earning more than $7.25 per hour makes no difference" ( 7.25$ minimum wage according to wiki)

PD 2.0 with 52% SS is same as 208% SS with pd 1.0. No magic here, just leave PD at 1.0 and change SS.

Ok. But ask yourself why they even do that? Only reason for that is to show damn targeted ads in facebook. They are not selling your data to anyone, why would they do that? It's most valuable resource they have. Either way, compared to what Google does it's just nothing.

Why would anyone use Facebook in 2020 for anything anyways? You can have account in FB but just never login. Don't like any posts, don't open links. FB can try to track all they want, but they just don't get any meaningful data. This facebook login scandal is blown out of proportion