Resolution setting

[Harlikwin]

So ive seen it posted that the resolution setting for the game doesnt do anything. However based on experiences in another vr flight sim I think it might. In the other sim i turned down the screen res to 1024x768 from 1080p and got a pretty large frame rate boost. Vr res was unaffected but the on screen display certainly changed. I tried the same thing with DCS and while its qualitative i think I also saw a decent boost under previously bad conditions now were running much smoother and I think the on screen res is lower (only can turn it down to 1280 something from 1080p. Anyhow anyone who is setup to do some actual benchmarking confirm this?

[Svsmokey]

Interesting ! I would like to see such a test result as well...

[dburne]

Certainly one can change the game's resolution without issue, as long as it does not effect ability to click menu buttons.

I tried some time ago and really could not see any visible difference in my performance.

[toutenglisse]

In my experience with DCS it doen't work the same than with il-2 : in il2 you can choose f.e 640x480 and the VR's mirror will be in this resolution, windowed or full screen, and it will affect the rendering load according to developpers.

 

With DCS the resolution you set ingame only affects rendering if you use your screen and not VR. The VR mirror will be the same because it's defined in relation with windows desktop's resolution.

 

So if you want to reduce VR's mirror resolution with DCS you have to change the resolution in windows for the whole desktop.

But also in my experience the savings will be only 3-4 % in gpu usage (max, meaning without any mirroring for main gpu, mirror being handled by second gpu).

[davidp57]

isn't it possible to completely disable the 2d mirror ?

[toutenglisse]

isn't it possible to completely disable the 2d mirror ?

 

I tried but no success with that. Old oculus sdk's commands to achieve that don't work anymore.

BTW the ressource for mirror + desktop is 3-4 % load of a gtx970... so 1% or so for a 1080Ti... no gain that can be sensible.

[Harlikwin]

In my experience with DCS it doen't work the same than with il-2 : in il2 you can choose f.e 640x480 and the VR's mirror will be in this resolution, windowed or full screen, and it will affect the rendering load according to developpers.

 

With DCS the resolution you set ingame only affects rendering if you use your screen and not VR. The VR mirror will be the same because it's defined in relation with windows desktop's resolution.

 

So if you want to reduce VR's mirror resolution with DCS you have to change the resolution in windows for the whole desktop.

But also in my experience the savings will be only 3-4 % in gpu usage (max, meaning without any mirroring for main gpu, mirror being handled by second gpu).

 

Yup, I saw a decent performance increase in IL2 doing this. So I figured I'd try it in DCS, it "seems" to give some sort of boost. Now mind you I'm running a 980M card... So bottom of the barrel where any FPS increase is generally noticable. I might try changing windows whole resolution to see.

[Strikeeagle345]

Yup, I saw a decent performance increase in IL2 doing this. So I figured I'd try it in DCS, it "seems" to give some sort of boost. Now mind you I'm running a 980M card... So bottom of the barrel where any FPS increase is generally noticable. I might try changing windows whole resolution to see.

 

interested to see what that does, if anything.

[Harlikwin]

interested to see what that does, if anything.

 

So in IL-2, I went from using a PD of 1.0 and 1080p res and high settings and getting mostly right around 45fps with drops into the 30's in some cases. I bumped it up to 1.2PD (1080p) (which looks much better) in the steam tool (120%). My frames nosedived into the 20's and 30's if I was lucky, juddering etc. I changed it to 1024x768 (IIRC), and now the 1.2 PD setting is actually smoother than it was with 1.0 and it looks much better, I gotta check if I can lower the monitor res further and bump up the PD more.

 

With DCS, Its harder for me to systematic as with IL2 since I fly different planes. Basically I'm running 1.2PD medium textures and most everything else either off or low. I was getting 45 frames in some/many situations, but it would drop a fair amount into the 30's or less with certain planes or situations (can't keep 45frames with the mig21 for example). By reducing the Screen res from 1920x1080 to 1280xwhatever the lowest setting is things seem to stay much more often at 45 with fewer drops under that in most situations and the mig "drops" went from the teens to the 20's and it usually runs in the 30's now...

 

I was doing harrier landing practice (MUCH easier in VR) on the tarawa and I would get solid frames until I touched down and they tanked into the 30's and 20's. By changing the screen res its a solid 45 on the deck now. My card is running at 70-80% now instead of 90-100% which I was seeing. (I think the drops might have been due to thermal throttling as well, but I can't do much about that since its a laptop).

 

Again, I've got a low end card, and for the most part its exceeded my VR expectations. Though I'm really looking forward to where pimax 5K's go, since the biggest issue that I can see is the overall low/res and SDE issues with the Rift.

Edited January 10, 2019 by Harlikwin

[Strikeeagle345]

So in IL-2, I went from using a PD of 1.0 and 1080p res and high settings and getting mostly right around 45fps with drops into the 30's in some cases. I bumped it up to 1.2PD (1080p) (which looks much better) in the steam tool (120%). My frames nosedived into the 20's and 30's if I was lucky, juddering etc. I changed it to 1024x768 (IIRC), and now the 1.2 PD setting is actually smoother than it was with 1.0 and it looks much better, I gotta check if I can lower the monitor res further and bump up the PD more.

 

With DCS, Its harder for me to systematic as with IL2 since I fly different planes. Basically I'm running 1.2PD medium textures and most everything else either off or low. I was getting 45 frames in some/many situations, but it would drop a fair amount into the 30's or less with certain planes or situations (can't keep 45frames with the mig21 for example). By reducing the Screen res from 1920x1080 to 1280xwhatever the lowest setting is things seem to stay much more often at 45 with fewer drops under that in most situations and the mig "drops" went from the teens to the 20's and it usually runs in the 30's now...

 

I was doing harrier landing practice (MUCH easier in VR) on the tarawa and I would get solid frames until I touched down and they tanked into the 30's and 20's. By changing the screen res its a solid 45 on the deck now. My card is running at 70-80% now instead of 90-100% which I was seeing. (I think the drops might have been due to thermal throttling as well, but I can't do much about that since its a laptop).

 

Again, I've got a low end card, and for the most part its exceeded my VR expectations. Though I'm really looking forward to where pimax 5K's go, since the biggest issue that I can see is the overall low/res and SDE issues with the Rift.

 

interesting. FYI, I have zero SDE in the odyssey+. Some say they do, but they are just seeing the screen resolution at this point, not SDE.

[Harlikwin]

interesting. FYI, I have zero SDE in the odyssey+. Some say they do, but they are just seeing the screen resolution at this point, not SDE.

 

How does the resoltion really look on the oddesy +? Is it sharper, im not sure I buy the 1200ppi claims.

[etherbattx]

they are just seeing the screen resolution at this point, not SDE.

 

isn’t SDE caused by screen resolution?

[Svsmokey]

How does the resoltion really look on the oddesy +? Is it sharper, im not sure I buy the 1200ppi claims.

 

https://forums.eagle.ru/showpost.php?p=3754408&postcount=102

 

These appear to be thru-the-lens pics by Strikeagle

[davidp57]

isn’t SDE caused by screen resolution?

 

It's the conjunction of low screen resolution (objectively big pixels) and short screen-eye distance (subjectively very big pixels) which makes the small gaps between pixels almost visible, giving the idea of looking through a fly net

[imacken]

Again, I've got a low end card, and for the most part its exceeded my VR expectations. Though I'm really looking forward to where pimax 5K's go, since the biggest issue that I can see is the overall low/res and SDE issues with the Rift.

Pimax 5K has no better resolution than the Vive Pro or Odyssey Plus. In fact it has a lower vertical res - 1440 compared to 1600. It only has a much wider fov.