My DCS VR Performance Optimization | 4090 Aero

[dburne]

1 minute ago, Wali763 said:

Maybe a stupid question:

Are many with a G2 (or other 90-Hz-HMDs) running DCS in 90Hz? Especially with MT and considering 4090-owners for sure have fast CPUs, this should be easily doable.

Yet when browsing this thread it seems, many people even with 4090s are below 90fps.

Do they prefer to use higher settings instead of fluid 90fps?

In my case - yes. However since DFR with eye tracking for the Varjo Aero and DCS Multi-threading I am hitting 90 fps a lot more than I used to.

[muzica9]

1 hour ago, Wali763 said:

Do they prefer to use higher settings instead of fluid 90fps?

yes

[speed-of-heat]

39 minutes ago, muzica9 said:

yes

I currently use higher settings and a smooth 60hz ... YMMV

[some1]

2 hours ago, Wali763 said:

 

Are many with a G2 (or other 90-Hz-HMDs) running DCS in 90Hz? Especially with MT and considering 4090-owners for sure have fast CPUs, this should be easily doable.

I play relatively simple missions that I created for myself at 90 FPS. However, if I wanted to play a campaign or multiplayer, 90 FPS is hard to achieve and CPU is sometimes the limiting factor, even with MT.

[VR Flight Guy in PJ Pants]

I have a couple of them out in the User Files section. One has about 10 seconds of which is quite CPU-intensive: flying over bomb explosions.

Edited March 27, 2023 by VR Flight Guy in PJ Pants

[Wali763]

Ok, thx.

I was for some time thinking of upgrading to a 4090 or at least a 4080. But since I am already quite used to my lowish settings but 90fps in most situations I fly in on my AMD-GPU, Im not sure, if its worth paying so much for a bit more eyecandy.

Anyway, Im not in a rush and Im pretty sure, prices will come down much more. At least for the 4080.

[Ready]

4 hours ago, Wali763 said:

Maybe a stupid question:

Are many with a G2 (or other 90-Hz-HMDs) running DCS in 90Hz? Especially with MT and considering 4090-owners for sure have fast CPUs, this should be easily doable.

Yet when browsing this thread it seems, many people even with 4090s are below 90fps.

Do they prefer to use higher settings instead of fluid 90fps?

I prefer smoothness over higher visual settings. Un-smoothness (if that is even a word) breaks the immersion for me. 

Edited March 27, 2023 by Ready

[Ready]

8 hours ago, muzica9 said:

try also this mod. i got good results

 

Thanks I used to run it in the past. Stopped when I switched to MP. Will see if it will be accepted at our server.

[Baldrick33]

On 3/27/2023 at 2:19 PM, Wali763 said:

Maybe a stupid question:

Are many with a G2 (or other 90-Hz-HMDs) running DCS in 90Hz? Especially with MT and considering 4090-owners for sure have fast CPUs, this should be easily doable.

Yet when browsing this thread it seems, many people even with 4090s are below 90fps.

Do they prefer to use higher settings instead of fluid 90fps?

I think it depends what people use DCS for. For more complex single player missions and multiplayer achieving 90fps even with the most powerful hardware is still difficult maybe impossible without comprising visuals too much (too much is of course personal).

Having just upgraded to a 4080 from a 2080ti, with the benefits even a fairly old 8600k @4.9GHz gets with MT, I can comfortably achieve 90fps for the relatively lightweight stuff I play. Prior to that I needed motion reprojection. It does help I have a G1 rather than a G2 as it is optimised at a significantly lower resolution.

[WipeUout]

On 3/27/2023 at 4:19 PM, Wali763 said:

Are many with a G2 (or other 90-Hz-HMDs) running DCS in 90Hz? Especially with MT

I run my Pimax 8kX at 60hz in order to get native resolution, 90hz is not achievable without scarifying image quality too much (for me).  My 4080 is pretty good and the i9-13900KF is smoking fast but we are not there yet and I doubt very much I could drive my 8kX at 90hz even with a 4090 at the same level of details going multiplayer in Syria.

MT is not the determining factor for me, my CPU is pretty powerful.  But if you play dynamic campaign like DCS-Liberation or fly on enigma server, then MT is making a difference.

 

[lobo]

On 3/27/2023 at 11:21 AM, Ready said:

I prefer smoothness over higher visual settings. Un-smoothness (if that is even a word) breaks the immersion for me. 

 

Same for me. Smooth rules. I'm running a 5800x3d paired with a 4080 and have adjusted game settings/openxr (with MT), to achieve 90fps.  I only run the G2 at 90hz, tried 60hz once and after a few minutes wanted to gouge out my eyeballs. 

I'm also picky about which maps I run. Some are much better on FPS than others.  Again with the maps I'll take smooth all day long. If I can't run a map in VR at close to 90fps I'll not fly that map. 

Edited March 28, 2023 by lobo

[Ready]

3 hours ago, lobo said:

Same for me. Smooth rules. I'm running a 5800x3d paired with a 4080 and have adjusted game settings/openxr (with MT), to achieve 90fps.  I only run the G2 at 90hz, tried 60hz once and after a few minutes wanted to gouge out my eyeballs. 

I'm also picky about which maps I run. Some are much better on FPS than others.  Again with the maps I'll take smooth all day long. If I can't run a map in VR at close to 90fps I'll not fly that map. 

 

I can fly a couple of maps at 90FPS at 90Hz as well, if I run them in SP. The issues start on our MP server, where the CPU-impact causes stutters, mostly around our base and target ranges. So in order to stay at 90Hz I started reducing resolution and eye-candy almost until it became horrible. It still was giving me some stutters though. 

Now after MT and after downscaling to 60Hz most of the stutters have dissapeared, but the strobe has appeared.

I must honestly say that I still hate 60Hz, but I am starting to get a little bit used to it. The issue for me I think is that I have been getting used to the 90Hz for a couple of years (was always flying in 90Hz with motion reprojection on my 3080) and downscaling to 60Hz really shows a big visual impact. It sorta reminds me of going back from a 1080p monitor to an interlaced CRT screen.

My added complication is that I not only want smooth visuals inside the G2 without motion reprojection (because of artifacts, wobbly lines in the VR kneeboard and watery effects near the canopy) but I also don't want foveated rendering (because that looks bad in the videos) and I want a smooth recording in 4k. This makes it almost impossible at the moment to achieve.

 

 

Edited March 28, 2023 by Ready

[Tusk.V]

I'm sure you already do but make sure you have the sunglass filter turned on. It helps a little. I turned down exposure too.

[Ready]

2 hours ago, Tusk.V said:

I'm sure you already do but make sure you have the sunglass filter turned on. It helps a little. I turned down exposure too.

Yes I am using it. Will check reducing exposure. Thanks.

[Ready]

Stupid question alert for Aero users:

Will the Aero give me better performance than the G2? I am not talking FOV, but frequency-wise. I am running the G2 now on 60Hz without motion reprojection and without foveated rendering.

Could I get something better looking out of the Aero in maybe a bit higher frequency and have dynamic foveated rendering switched on? I saw a video online and could not tell the pixelation.

[motoadve]

46 minutes ago, Ready said:

Stupid question alert for Aero users:

Will the Aero give me better performance than the G2? I am not talking FOV, but frequency-wise. I am running the G2 now on 60Hz without motion reprojection and without foveated rendering.

Could I get something better looking out of the Aero in maybe a bit higher frequency and have dynamic foveated rendering switched on? I saw a video online and could not tell the pixelation.

Aero better performance for sure now that we have Foveated rendering track eye in MT Beta, better visuals... absolutely, totally worth it specially since you already have a powerful PC with a 4090.

[muzica9]

3 hours ago, Ready said:

Stupid question alert for Aero users:

Will the Aero give me better performance than the G2? I am not talking FOV, but frequency-wise. I am running the G2 now on 60Hz without motion reprojection and without foveated rendering.

Could I get something better looking out of the Aero in maybe a bit higher frequency and have dynamic foveated rendering switched on? I saw a video online and could not tell the pixelation.

don't think so. if you want higher PPD, resolution is even higher than G2.

[Ericcaff]

Hi to all,

Maybe someone find solution for this! Yesterday upraded to 4090, i use OpenXR Toolkit and play on MT (on ST same) really want play whit out reprojection (becasue ghosting drive me crazy) Whitout reprojection i have 75-90FPS, it is pretty good and high FPS, but i don't understand whay i have small stutterging when i look at the ground object forest, grass, houses e.t.c
 Can some one know it is possible fix this whitout killing game video settings, is the OpenXrToolkit turbo mod can help?

This is my in game settings and in signature my PC specs!

Edited May 16, 2023 by Ericcaff

[speed-of-heat]

the only way i can do this is to drop MSAA or drop to 60hz or drop your resolution 2160x2160 your specs and mine are almost identical 

though a lot varies depending on the theatre and module 

[some1]

47 minutes ago, Ericcaff said:

Whitout reprojection i have 75-90FPS, it is pretty good and high FPS, but i don't understand whay i have small stutterging when i look at the ground object forest, grass, houses e.t.c

You need stable 90 fps for the stuttering to completely go away. What you see as stuttering is the headset displaying the same game frame for two refreshes in a row. Because it works at fixed 90 hz and the game is not providing 90 frames per second. 

Edited May 16, 2023 by some1

[Ericcaff]

24 minutes ago, speed-of-heat said:

the only way i can do this is to drop MSAA or drop to 60hz or drop your resolution 2160x2160 your specs and mine are almost identical 

though a lot varies depending on the theatre and module 

I know I can drop all game settings, but this is why I upgrade to 4090 powerful GPU for smother runing,. I just dont understand why when I look at ground objectos I have 80FPS but see this micro stutterings, as well - on Airfild when I driving have 90 FPS but looking on grass have those micro stuterings. Problem is FPS is high, but have this micro stutterings on ground objects.

[speed-of-heat]

@Ericcaffas i said , i also have a 4090, and the same CPU over clocked to 5.1  you realistically will not be able to hold 90hz on all those settings.. as to why when you look at the ground, i suspect its something to do with trees , but it also (at least for me) has something to do with looking out the sides (straight ahead it's not so bad) if you check the frame times you will find little micro stutters above the acceptable frame time for gpu or cpu ...  i found that unacceptable so i dropped to 60hz, or you could get the same impact by reducing other settings... those are your choices right now... 

Edited May 16, 2023 by speed-of-heat

[some1]

A headset is like a monitor with VSync ON. If you can't maintain the rated refresh rate of the display, you get stutters. 

[Ericcaff]

Ok, thank you will try to do something with setting, at this moment im on testing with best optimal settings, but my biggest problem was ghosting wirt reprojection on my old 3090

 

[Baldrick33]

6 hours ago, Ericcaff said:

I know I can drop all game settings, but this is why I upgrade to 4090 powerful GPU for smother runing,. I just dont understand why when I look at ground objectos I have 80FPS but see this micro stutterings, as well - on Airfild when I driving have 90 FPS but looking on grass have those micro stuterings. Problem is FPS is high, but have this micro stutterings on ground objects.

Unless you have the power to run at 90fps it will always stutter at anything below in my experience. Some seem able to deal with it better than me but I have to resort to reprojection. So it very much depends on the mission. With a 4080 and a simple free flight on the Caucuses map I can get 90 but add any complexity or even go down low and it drops, even a few frames and it stutters too much for me. Unfortunately I don’t think the hardware exists to run 90fps consistently.