WipeUout

Thanks mate! I did not paid attention to what was happening right before the crash, will check next time if it happens again. I will give it a try and get back to you, probably tomorrow.

Hi Pantera, great work with this script! In case you need a break from the wedding prep and all , I get a weird error whenever playing. Any idea what is causing this? I get this error playing solo or also on my server. I also attached the mission I use, I don't think there is any problem in it but you are the expert... WARZONES_MT.miz

Looks interesting but giving up on native OpenXR is too much of a compromise for me!

Well, my tests show no gain and same results on or off. And BTW, the latest version is 2.4.0.4 (march 2023) from the guy who codes it: https://github.com/Orbmu2k/nvidiaProfileInspector/releases

Tested it yesterday with newest versionof NPI and it is still not working in DCS, probably not implemented yet. The gear icon next to the rBAR option in NPI needs to turn green when enabled to confirm it is implemented in the game. For DCS, the icon remain blue.

... and using openComposite cost 1ms in GPU frametime on my system. Not only it isn't required anymore, it is less efficient.

For me it is very subtile at 60hz and I see some vibration when looking to the sides in menus and also during flight. At 90hz, there is some vibration in menus also but none in flight, everything is rock solid. I sometime also use 75hz if I absolutely need to have MSAA ''on'' but that only happens on the NTTR map away from Las Vegas... Overall, I feel less fatigue in my eyes when simming at 90hz.

Use the OXRTK FPS counter, it will give you the right picture. Does not make any sense. I have the same CPU and my CPU frametime stays around 5ms most of the time wich is way bellow 11ms (90 FPS limit). Do you use process lasso or something similar to assign core affinity? This is not required anymore with DCS MT... or you might have something running in the background that uses your CPU? You should be able to maintain 90FPS in 95% of the time. As an example, when I run the A-10A Caucasus instant action mission (close air support) my FPS drops below 90 only when CBUs explode within my filed of view. Speaking of FOV, I use normal since I wear glasses and wide FOV is completely useless for me. This will be more taxing for your system if you use the widest FOV. In any case, you should have at least 10% better performance than me with my 4080!

This is the target situation, you want your GPU to work fully and not be limited by the CPU. That is not to say that a little bit of headroom is required, I personnaly dial down some setting to ensure my GPU is running between 70 and 80% on average and can cope with flying lower or over dense/detailed terrain. But why are you still using SteamVR? OpenXR offers such better performance and quality of visuals! It is about 1.4ms GPU frametime improvement for me in my test track compared to SteamVR and the image quality with CAS also is much better.

Looks interesting, where can we find your mod?

Could be several things but share your hardware info, this will help. Before going any further, have a look at the following two posts: Clarity is first and foremost influenced by resolution. Check your Pimax client setting to ensure you are on native resolution (vs upscale) and your render quality slider is set at 1 for DCS (or global settings). Next, ensure you have also the DCS pixel density set to 1 and do not modify resolution in OpenXR toolkit. The object is to use the 8KX at 100% resolution which will give the best possible visuals. 4k per eye is a beautiful thing! Another setting that will greatly help with clarity is in OpenXR toolkit : CAS Sharpening. I set the sharpening at 100% which makes a huge difference. If you are not using OpenXR as your runtime, install a reshade mod to increase sharpening. Unfortunately, DCS by itself is blurry in VR and you need to sharpen quite a bit. Another feature that makes things a bit blurry is the atmospheric haze but that is for outside view only. If you want to reduce it, try to set the DCS gamma setting to 1.3 and have your backlit and brightness cranked up in Pimax client options. It will not eliminate all the haze but will reduce it quite a bit. This is assuming you have the horsepower to drive the 8KX at native resolution. If your hardware can't pump those 2 x 4k pixels at a sustained rate, then you will have to reduce quality settings and refresh rate if possible. Depending on your 8KX model, you may have the option of 60hz and 75hz for refresh rate which is way less demanding than 90hz. Pimax Smart smoothing also can help but then it is a compromise between "blurry smooth framerate" or "clear stutters".

The idea is good but the breath is too wide for three reasons. First, as stated above by @speed-of-heat, there are numerous mission type, scenario, terrain, airframe, etc. Second is the hardware variety and possible combinations, which is almost infinite. Thirdly, personal taste and tolerance toward details, image quality, refresh rate, etc. That is not to say it would not be possible but you would probably need a multi-dimensional matrix to cover all aspects and possibilities. I think that we have already a good set of guide for several type of HMD and VR support software. But I'm with you, the VR world need simplification and standardization, it is a mess.

Agree, same workload for both HMD. 90 FPS is achievable with the 8kX but you have to compromise on MSAA which is for me not a big problem with the resolution. Agree about the 60hz also but not everyone can sim at that refresh rate, I personaly can but not for prolong hours. The 60hz is also not available to all models of 8KX, only the first version has it. I also expect the crystal to perform better given the dynamic foveated rendering. My only worry is the trade off of FOV for clarity, is it going to be acceptable? I find that large FOV is such a critical feature to immersion. We'll see.

In my opinion, you will be disappointed with the clarity of the Pimax 5k+ compared to the G2. You will also find that the screen door effect is too much in the 5k+. If you want to switch to a Pimax HMD coming from a G2, then don't go lower than a 8k+ or even better, an 8kX if you have the horsepower to drive it. After all, the 5k+ is 2018 tech.

Ok, a little more explanation: Say your HMD is set at 90hz, this means that in order to have a smooth video, you need your system to pump more than 90 frames per seconds. If your system can't keep up and your FPS drops below 90, then you get stutters. MR or reprojection or smart smoothing, whatever it is called by your HMD maker, will insert frames to ensure the FPS never droppes below 90 using different techniques to predict how the next frame should look like if dropped because to system can't keep up. If you are a time traveler and have a 7090, then you absolutely don't need MR anyway.

It is the Pimax version of reprojection. It will kick in only if your FPS drops below your HMD's refresh rate.

Mee too.

hope you have a smooth setup! Good luck and let us know how it goes.

Sorry to hear that, I did have an issue with my 8k+ cable but it was quickly diagnosed and replaced by Pimax. My experience with them so far is very good but we all have different experience. Not sure about the Aero support. I am also keeping my 5kX for trade-in value when the 12k will be available, if ever. If you have some patience left, I will point you to this thread and you might find a solution and better performance, at least for DCS:

Here are my actual settings below. I am having the best experience so far with the 8kX, very clear and smooth visuals for the vast majority of scenarios. First the Pimax settings and then the DCS Setings. As you can notice, I use 90hz which is the maximum refresh rate on my 8kX (older model). The 75 or 60 hz is usable but a bit flickery in menus. Using 75 or 60 hz allows higher settings though if you can sim at that rate. At 90hz, you should be able to maintain at GPU frametime bellow 11ms most of the time with those setting but need at least a 4080. The CPU is no longer a limiting factor with Multi-threading(MT). For DCS settings, it is up to your personal taste but running the 8kX at native resolution, I find that MSAA is not required as the best cure for aliassing is higher resolution. If I run the HMD at 60hz, then I have the horspower to use MSAA but the quality gain is not that much. MSAA has a very high cost in terms of GPU frametime. On average, I increase my GPU frametime by 2.7ms which is huge and would force me to use re-projection and this is a no-go for me. Native resolution without reprojection is the objective! You may notice also that my gamma setting is pretty low and this is to reduce haze. It is a good and efficient way but you have to crank up your backlit and brightness to compensate. As for windows stuff, I have HAGS on with not issues and leave nvidia driver 3d setting pretty much at default except power management set to max performance. For other software such as Pimax client, PimaxXR and OXRTK versions, see my previous post. Running these exact versions is the key to have a smooth DCS MT experience. Some additional info about OXRTK: I do not overide the resolution but use Fix Foveated Rendering (FFR) at performance setting and CAS at 100%. Note that the pimax client FFR does not work with DCS-MT and OpenXR. We all have different hardware setup and this is why it is so challenging to find that sweet spot but hope this can help.

Coming from the Defense industry, NDAs are used to protect IP right and limit disclosure of company information to third parties. It is not to prevent people to do evaluation of a product. That is not to say that there can't be some bug disclosure restriction agreement made but it would not be called an NDA. Youtuber need vues and subcriptions to make money and it is entirely possible that some could be greedy and agree to omit some stuff in order to get first look privileges. When the Crystal comes in our community's simmers hand, then we will have a better picture of how good it is. For now, I based my assessment on pure specs and personnal experience with Pimax, I think the Crystal will be very good in DCS.

Wow, 8KX is absolute joy for me! And with your rig, you should be able to run it at native resolution! Talk to me dude.

I saw that in early reviews and in particular with 30 series GPUs, but seems to be resolve with the first production units. At least from youtuber MRTV it is not an issue as he tried both 30 and 40 series GPUs with positive results.

Looking at some recent reviews, I pull the trigger on a pre-order. Seems that with MSFS it is very good and even performing well with a 3080! From a spec perspective, this HMD as a similar pixel count as my 8KX but more compact, thus resulting in a much clearer image. My 4080 gives me the opportunity to run my 8KX at native resolution and even at 90hz. The resolution is so good that I don't even need MSAA, I think the Crystal will be even better with a PPD of 35. I will lose some FOV but I am already running my 8KX at normal FOV which is around 150 degrees horizontal, not a big loss as I wear glasses anyway. I also expect dynamic foveated rendering will help improve performance over fixed foveated. Can't wait to get the crystal!!

Mmm, not sure I understand this either now. Playing DCS on multiplayer or single player can be a basis for comparison but the best way to compare your setup with other is to use a track file to standardize as much as possible the testing environment. When using a track file, it does not matter where you are physically and everyone in the community can try it.