3 Ways to Improve Image Quality & Clarity of the Pimax 8KX

Thank you…I have a rtx 2080ti…can you still clarify what you mean by setting in app to 30%? You mean eg. if when running in pancake mode in the game it’s set to 4k (3840 x 2160)- you set that instead to 30% of that (around close to 1152x648) whilst making steam vr 50% of the normal 100% steam vr resolution whilst making pitool render a whopping 1.75? Is that what you mean by 30% in app? Also what is your steam vr resolution when at 100% please? My ipd is 71mm but it only comes close to being clear around the lowest setting at 60mm with the physical ipd dial… still having some trouble having both eyes perfectly clear at the same time (usually if the left eye is in the sweet spot it’s harder to get the right eye perfectly clear simultaneously…Thank you

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Forget 30%

With Pitool render at 1.75
SteamVR 50%
then under Vdeo on SteamVR settings - there is per application settings you can dial in per application settings. Default is 100%

with my RTX2080 and PiTool Render of 1.75, I use 50% on both SteramVR Video and the per app setting.

This gives me a render target with Normal FOV of 3320 x 2764 when looking at the per app setting.

do you follow?

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Ok thanks- so if I understand you correctly you don’t change the graphics resolution in game at all? (if it’s a game/sim that runs in both pancake and Vr mode like most flight sims and racing sims where you can change the in game resolution- don’t touch that at all?) and when you said change ‘in app’ resolution you were referring to the steam vr ‘per application settings’ only and not the actual in game resolution? With games that run in both pancake and VR modes (like DCS World, Xplane 11, Il-2 Sturmovik, Project Cars 2, Asseto Corsa etc that do have access to in game resolution) does it not matter what in game resolution is set to then, relative to the steam Vr resolution, in application steam vr resolution and piltool render?

May I also ask what your main specific steam vr resolution is at 100% (not the ‘in application’ steam vr resolution)? Mine changed for some reason and just want to make sure we’re on the same page resolution wise - currently my main steam VR resolution at 100% is set to 3720x3160 (not even a 16:9 aspect ratio for some reason even though the 8KX uses 3840x2160 (4K) 16:9 panels…yet on first starting it with the 8KX when first setting up the 8KX earlier this week this main steam Vr resolution was a higher value when I first set up the 8KX (can’t rember the exact values) yet I do not know how that value has since changed…

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Hello,

Through the dcs forums I been made aware of a working reshade version that works for DCS, dirt rally 2.0 and assetto corsa as far as I have tested. And it also works with elite dangerous.

The files for this can be found here: Release OpenVR support with basic VR preset · fholger/reshade · GitHub
Put the files and folders into your elite dangerous, assetto corsa, dirt rally 2.0 root install folder and for dcs put it in the bin folder. Boot up and enjoy.

Home key brings up the reshade menu. I’ve changed the sharpening to 1.500, but default is 1.000. End key turns effects on and off so you can compare.

My experience with this shader is that I don’t notice that much close up, but mid to far distances it helps very much. The sharpening is very good and from my experience it will let us lower the amount of supersampling needed while still improving the image. It also improves colors for me, but I have not tweaked in pitools. Its a cooler color scheme and it feels like it is getting rid of thin layer of fog in the image.

Please share if you find other games and simulators you get working with this.

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is this working whit fallout4 vr?

I have not tested, but the same user on GitHub released something similar for fo4vr. I’ve tried that as well and it improves clarity and sharpness. Link: Releases · fholger/f4ovr_improvements · GitHub

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No ingame resolution adjustment, Pitool / Experience and SteamVR Resolution adjustments for me.

VR a bit more complicated than a monitor but in essence 2x monitors with a big fat lens in front of them but Graphics have to go through what is called a distortion profile to match the shape of the lens and the effect it has on the image from the screens.

That is why things also look a little less detailed on the edge of the lens as the pixels displayed are more stretched out. VR uses Super Sampling to try and counter this but at the end of the day, one is tied to the native resolution of the screen in front of them. Super Sampling (SS) is a form of image anti alaising from what I gather.

Nvidia also has a sharpening setting in their Control Panel which helps, it is located at the top of the list of 3D settings.

Per Eye render target resolutions I find useful with Normal FOV
Speed = Pitool Render 1, SteamVR 50%, App 100% - 2684 x 2232
Quality = Pitool Render 1.25, SteamVR 50%, App 100% - 3356 x 2792
Quality = PiTool Render 1.75, SteamVR 50%, App 50% - 3324 x 2764

I have been using the last setting mostly but I will look again at the 1.25 setting and see what it gives. These settings work for the RTX2080. The Ti you can probably use the last 2 settings with higher visual quality in game and get a good experience.

To double the settings, I would recommend a RTX3080 and I am not shure what benefits it brings other than smoother image quality. Be that at a loss of detail over distance, I am not sure. Anti Aliasing like FXAA and MSAA I find tends to soften the image and blur it for my liking so I put up with a little shimmering instead. The 1.75 50% / 50% setting though gives a good image for me at medium settings in Il2 and DCS with minimal shimmering. SW Squadrons works well at the same setting with bells and whistles and Parallel Projections for me.

Same for Alien Isolation.

I also find with the wider FOV, I can take lower fps than if I was using a mainstream VR headset with 90 to 110 degree FOV (claustrophobic).

Hope this helps.

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I thought the Nvidia CP sharpening did not work in VR?

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Works for me, maybe tied to the rendering method a particular game uses.

Makes a nice difference to Il2

On that - back to testing PiTool Render 1.25 100% / 50% in SteamVR - not as good as the 1.75 / 50% / 50% setting which is close in per eye render target but the difference in rendered pixels lends itself to a sharper image in 1.75’s favor and less aliasing.

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with DCS World set to PiTool Render 1.75, SteamVR 50%, App 50% - 3324 x 2764 it was very stuttery for me- just made PiTool Render 1, SteamVR 74%, App (unchanged) at 100% 3084x2716 and got decent frame rates though higher density situations and maybe multiplayer requires Fixed Foveated Rendering at ‘balanced’ to have decent frame rates there (don’t really notice the low res foveated areas much anyway as the sweet spot is so smal anyway (edges out of focus I don’t notice anyway if the edges are lower resolution or not anway and tend to focus on the central sweet spot mostly anyway) - I have teh default ‘VR’ setting with a few upgrades in graphics settings- FXAA and MSAA are turned off as they are known to kill fps and with 4K panels, less needed- but DCS is a hog and notoriously hard to get decent frame rates - hope the updates coming this year do in fact finally take advantage of multi core CPUs etc

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I tried the liquid glass and though it’s nice to have peace of mind that the lenses are (apparently) somewhat protected a bit more (no way of proving they are), I can’t really say that it did anything to improve clarity any more than cleaning your lenses with a microfiber cloth does which quickly smudges up with use again after the liquid glass application (as it did before the application) requiring another cleaning anyway (to prepare the lenses for the liquid glass you have to thoroughly clean the lenses which is the same temporary effect)… can you say there is a lasting improvement in clarity after applying the liquid glass yourself? I’m not really convinced there is, unless purchasing more liquid glass or a different similar product and applying a second time will have a more noticeable effect?

Also I’m not sure how increasing the pitool render will increase the sweet spot as surely no matter how big the resolution/ rendering quality gets, surely the sweet spot is limited by the limitations of optics of the lenses regardless of the pitool render quality… and obviously if you increase the pitool render quality, the steam vr resolution/in app steam resolution needs to be radically lowered to avoid the vr experience becoming a slide show at such high resolutions so surely it is all relative…?

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