WipeUout

Recently switched from a 6900XT to a 4080. I had a 2080Ti before the AMD card and forgot how much better it is with the green team hardware. Switching back to Nv with a 4080 was a revelation right at the start, I could not believe how better the image quality and contrast is with nvidia. The 6900xt was a powerful GPU but unfortunately AMD does not have VR as a high priority. Unless there is significant improvement in VR support from the red team, I will stick with nvidia even if it cost more. And BTW, the 4080 is gving me 31% more FPS compared to my 6900XT OC'ed at 2825 Mhz.

I came upon a post in VR that explains how changing desktop resolution can improve VR performance. I did a simple test and noticed that changing my desktop resolution from 4k to 800x600 did provide a small improvement from 16.47ms to 16.15ms. It is not much on my system but some folks report up to 75% improvement in FPS on low-end PCs. This is evidence that showing a mirror image does take resources and has a performance cost. I think that having an on/off switch for the mirror might provide some benefits.

Interesting finding going to 800x600 desktop, not much of an improvement on my system (about 1.2 FPS) but still this proves that the mirror image has a performance cost. We need a switch in DCS settings to turn the mirror on or off!

Very sad reality. I have switched back to green team, cost a lot but now better experience.

22H2 has some gaming performance issue that just got resolved, at least for me with patch KB5020044. If you go Win11, make sure it is fully up to date. From an OS perspective only, I find Win11 more efficient and slick. I did struggle at first finding some stuff but now quite happy.

Same result here, only DCS MSAA seems to work. Even increasing resolution in SVR does not reduce shimmers as well as DCS MSAA.

I Tried the quest a few months ago and coming from a Pimax, it was very "tunnel vision" and restrictive. An 8K is not cheap and you need the lighthouse (controllers are optional if only DCS) but the increase in FOV add so much to the immersion. Try a Pimax, you will never go back to potato vision.

Agree, CPU is the problem here. I upgraded from a 9900k to a 12700kf and although I did not see a vast increase in FPS, the lows were much higher resulting in a completely smooth experience. DCS is a single core game, you need a fast single thread processor to give breathing room to your GPU. The GPU is fed by the CPU because the virtual world you are flying in reside in the computer's memory, not the GPU memory. You can experiment the single thread nature of DCS by playing a heavily populated mission on your computer vs a dedicated server which effectively provide you a second thread. You will see your CPU frametime getting much flatter. Upgrade that CPU.

I see that you miss flying a lot. You are very lucky to have experienced this. Not all of us have, DCS is the closest we will ever be. You said we all want the best, you`re right, and we have the best, we have DCS! It`s not perfect and under development forever, but it is getting better and better. Save your money, buy yourself a real airplane and be happy again. You need it.

I tried OpenVR_FSR and it works but did not use toggle keys, only changed settings in the cfg file. Performance was same as in 2.7.18, which is too much compromise on image quality in favor of increased FPS.

Did test quite extensively in 2.7.18. No magic here as this will increase your FPS but will cost a lot in image resolution and quality. This mod is based AMD's FSR upscaling technique. Here are the increases I got at the same settings but different "quality" value: Sharpness : 0.9, Quality =0.77 (Delta = 13.8 FPS) Sharpness : 0, Quality =0.87 (Delta = 7.6 FPS) Sharpness : 0, Quality =0.85 (Delta = 9.0 FPS) The problem I experienced with this mod is that I did gain FPS but when trying to get better clarity and resolution, I found myself having to increase super sampling to a point where it negated the FPS gain to get an acceptable image clarity. After a short while, I went back to my old settings without this mod, and realized that my image quality is much better without it after all. There is no magic, you have to compromise on quality to get more FPS.

I am switching back to nvidia with a 3090ti that is coming in the mail in about a week. Meanwhile I sold my 6900xt and re-installed my old 2070 for now. Going back to nvidia was a revelation. The AMD card was an outstanding performer (FPS wise) but the quality of the image was not as good as what I see now even in the 2070. Blacks are more dark, lines are more straight contrast blew me away and this is especially apparent in SteamVR portal. I now understand why people were stating that AMD does not support VR very well. Also, none of their adrenaline software options work in VR.

Your CPU usage should be around 15-20% and if it is running at 36% it means you have something else running. If your windows has been installed a while ago, I would suggest saving your data and do a clean windows install following FR33TY's guide : https://www.youtube.com/watch?v=J31Q8T-1eNk&t=1121s This is a bit of work but will give you a fresh install, optimize your PC and get rid of anything impeding your performance. Other than that, what are your DCS settings? Maybe lower your textures and increase pre-load to max?

No matter which board number is typed in the ME, it is displayed as 000 on the 3D model of the F-16.

Oh but I tried, and results were just the same with 0.3 FPS apart. Use a track, it is more rigorous and credible.

Is this some kind of a joke? It not even the same video and you compare FPS? At least go through the effort of making a track and test with a minimum of rigor!! With the same settings, if pixel count is the same, performance will be the same and image quality will be the same. As it was said and demonstrated, there is no magic.

There is logic in it. Depending which software layer you use for supersampling, there are slight differences. I found that SteamVR is better for upscaling than using DCS pixel density or even ''render quality'' in PiTool. There are many ways to upscale an image and all those software do not use a universal upscaler.

I think there was a check box in settings/special but eventually I simply uninstalled it

...and the tacview FPS cost is a well known issue both in 2D and 3D. Personally, I switched off tacview a year and a half ago.

Using a dedicated server make a huge difference in some scenarios. Bellow are two screenshot I took while running the attached mission which is full of action and units shooting at each other. You can see that running local has a lot of spikes in the CPU frame time graph, while running the mission on a server is much flatter with a 3ms reduction in the CPU frame time. In these example, the GPU is heavily bottlenecked so FPS is not relevant, nevertheless things run much smoother and with less stutters. I use an i7-8700 as my server with a GTX1060 connected to my home network. You do not need a whole lot of horse power to run a dedicated server but it make a difference! plazma_torture_map_2022_flanker.miz

Well, it is a solution, but the most expensive one! We need more cheaper/accessible solutions (other than to scale down settings and resolution) like an optimized graphic engine!

@ismaeljorda: Impressive performance from the 4090. Seems though that your CPU frame time is higher with the 4090 than with the 3090. Can you explain this? I ran the mission directly and I am getting CPU frame time between 14ms and 18ms. I tend to believe that although the 5800x3D is very good, it does not reach the performance of a 12th gen i7 in DCS.

All very true. Seems that people are opting for OB in order to get early access to new features and modules forgetting that OB is a testing and bug identifying vehicle before it goes to stable. Nevertheless, the reaction to 2.8 would have been very different if there had been some warning about the performance drop in VR. Sharing information and transparency always pay off in the long run.

Yes, same here. Double vision or ghosting is breaking immersion. Find the acceptable setting that will allow you to run your GPU frame time bellow what is require to maintain your FPS higher than your refresh rate. Big performance hits are: Anisotropic Filtering: keep off, no significant visual difference and can save you several FPS. Shadows: Presently broken and a big FPS hit with 2.8, keep off until it is fixed. MSAA: Try to keep it at 2x or off. Supersample a bit instead to reduce shimmers. I find SteamVR is the most efficient to supersample vs pixel denstity in DCS Mirrors: Turn off while in flight, can save you up to 1 ms off your frame time. Textures: Medium/Low will save you 2-3 FPS over high/high. Can make the difference between staying over your refresh rate or having stutters. Use a dedicate server: You have a good CPU but it does not have a good single thread performance and DCS uses only one core. Your CPU will be less taxed by using a dedicated server to run your missions.

2.8.0.32235.1 gave me less performance than 2.8.32066 with a FPS drop of 9.4% compared to 2.7. After updating my AMD driver to 22.10.3, my performance with 2.8.0.32235.1 is equal to 2.8.0.32066 which is 7.5% loss in FPS compared to the last 2.7 version. I use flat shadows only in my test track and settings. On the positive side, the clouds are really nice now in VR! Hats off!!