Can I get 90 FPS with 1070 ti, SSD and i7 6700k in VR?

[cmorris975]

Hi everyone,

 

Needless to say, but this simulator is amazing.  I'd love it even more if I could get it to run smoothly on my system with VR.  I get a fair amount of what I call "plane ghosting", as in where the planes I am flying near and shooting at blur and streak as my rig tries to render frames but can't quite keep up.

 

I am using a recently bought Oculus Rift.  I've turned down all in game detail and graphics to their absolute lowest possible settings.  The only thing I have on is "sharpen" and I do not use the HUD.  I have the game installed on an SSD and have run some cmd line stuff to make sure that it is as fast as possible.

 

I've spent about 5 hours playing with settings to try and make it so the planes don't ghost when I do a 4 v 4 quick mission dogfight.  It's better but they still do it.  Is what I am after possible in IL-2 with my hardware?  If so, can anyone recommend other settings I can check?  I know there are super-sampling settings but that gets confusing as the ones I saw in SteamVR do not match the resolution of my display (not exactly at least).

 

Thank you,

 

Chris

 

 

[HunDread]

If the ghosting is what's bothering you the most, try to disable ASW. By default it's LCtrl+Num1 once you are in the game but since it has never worked for me I use Oculus Tray tool to get it disabled. The trade-off might be a bit stuttering when your FPS goes below 90. However, I feel that ASW is too much 'overprotective' in a way that it launches even if you are dipping slightly below 90 FPS for just a short time.

 

I have a GTX1070, a 4790K @ 4.7 GHz and 16 GB RAM at 2666 MHz and can achieve 90 FPS most of the time on balanced with sharpen ON, shadows and mirrors OFF and 2x AA. View distance is 100 km, distant landscape detail is on 2x.

 

I don't uise supersampling. My hardware would allow me to use some but don't want it as it impacts distant spotting. 

Edited January 16, 2019 by -[HRAF]Black_Sab

[Dutch2]

I hope then somebody can trow in the holygraal, because I’m using the 7700k/1080 and dispite overclocking, the 90hz absolute not in a dogfight or straffing mission. OK high in the air no other plane and clouds it keeps the 90. 

[cmorris975]

33 minutes ago, -[HRAF]Black_Sab said:

If the ghosting is what's bothering you the most, try to disable ASW. By default it's LCtrl+Num1 once you are in the game but since it has never worked for me I use Oculus Tray tool to get it disabled. The trade-off might be a bit stuttering when your FPS goes below 90. However, I feel that ASW is too much 'overprotective' in a way that it launches even if you are dipping slightly below 90 FPS for just a short time.

 

I have a GTX1070, a 4790K @ 4.7 GHz and 16 GB RAM at 2666 MHz and can achieve 90 FPS most of the time on balanced with sharpen ON, shadows and mirrors OFF and 2x AA. View distance is 100 km, distant landscape detail is on 2x.

 

I don't uise supersampling. My hardware would allow me to use some but don't want it as it impacts distant spotting. 

 

 

Thanks for that Black_Sab.  That tray tool eliminated the "ghosting" nicely.  I can tell it drops a frame every once in awhile but it really isn't bothersome.

 

How did you turn off the super-sampling?  In the Steam VR app I set the application resolution to manual override and 100%.  Would that turn off super-sampling?

 

Thanks again.  I think I better get a non-OEM cooling fan installed and then overclock my processor a little too, but without the ghosting it's a lot more fun to fly already.

[1PL-Husar-1Esk]

Forget about it.

[HunDread]

26 minutes ago, cmorris975 said:

 

 

Thanks for that Black_Sab.  That tray tool eliminated the "ghosting" nicely.  I can tell it drops a frame every once in awhile but it really isn't bothersome.

 

How did you turn off the super-sampling?  In the Steam VR app I set the application resolution to manual override and 100%.  Would that turn off super-sampling?

 

Thanks again.  I think I better get a non-OEM cooling fan installed and then overclock my processor a little too, but without the ghosting it's a lot more fun to fly already.

 

I don't use SteamVR any more. I use opencomposite. But as far as I remember you need to make sure SS is set to 100% in two places in SteamVR - One under specific application profiles and one under like a global setting. It's under 'developer settings' as far as I remember.

[Guest deleted@134347]

26 minutes ago, cmorris975 said:

 

 

How did you turn off the super-sampling?  In the Steam VR app I set the application resolution to manual override and 100%.  Would that turn off super-sampling?

 

so a forum member @chiliwili69   was kind enough to build a below matrix table that shows the physical resolution of the HMD's vs. SteamVR upscaling of it in terms of the %.  I don't have Rift, so I don't know what the current SteamVR %100 for Rifts means, however you will be able to clearly see the resolution numbers in SteamVR under the percentage slider. If you look at chiliwili69's table then 100% in SteamVR is actually at 1.6 SuperSampling (real 160% increase).  If you want to get the true rift resolution then you most likely need to move the slider to the left to 60% area. I would think that you don't need to go that low, try it out with 90% first, then drop it lower.. etc..

[HunDread]

2 minutes ago, moosya said:

 

so a forum member @chiliwili69   was kind enough to build a below matrix table that shows the physical resolution of the HMD's vs. SteamVR upscaling of it in terms of the %.  I don't have Rift, so I don't know what the current SteamVR %100 for Rifts means, however you will be able to clearly see the resolution numbers in SteamVR under the percentage slider. If you look at chiliwili69's table then 100% in SteamVR is actually at 1.6 SuperSampling (real 160% increase).  If you want to get the true rift resolution then you most likely need to move the slider to the left to 60% area. I would think that you don't need to go that low, try it out with 90% first, then drop it lower.. etc..

 

This is a good point. I meant 100% as 'no supersampling' even though it is still supersampling. On second thought I am not sure if opencomposite without any supersampling value set is the equivalent of SteamVR 100% or native Rift resolution. My guess is it's equals SteamVR 100% because I didn't notice any image quality drop when I moved to opencomposite.

[Alonzo]

4 hours ago, cmorris975 said:

I am using a recently bought Oculus Rift.  I've turned down all in game detail and graphics to their absolute lowest possible settings.  The only thing I have on is "sharpen" and I do not use the HUD.  I have the game installed on an SSD and have run some cmd line stuff to make sure that it is as fast as possible.

 

I've spent about 5 hours playing with settings to try and make it so the planes don't ghost when I do a 4 v 4 quick mission dogfight.  It's better but they still do it.  Is what I am after possible in IL-2 with my hardware?  If so, can anyone recommend other settings I can check?  I know there are super-sampling settings but that gets confusing as the ones I saw in SteamVR do not match the resolution of my display (not exactly at least).

 

I really really don't like SteamVR. I've had problems with the HMD pixel density (that's Oculus-speak for supersampling) not matching my intended settings. Here's what I would suggest:

1. Install OpenComposite system-wide instead of SteamVR
2. Download and install Oculus Tray Tool (OTT)
3. Use OTT to set pixel density (supersample) to 1.0
4. Load the game in VR
5. Use OTT to set Visual Hud to "Pixel Density" - this will create a HUD within the Rift lenses that gives extra information

 

Confirm that you are seeing 1.0 pixel density. Then:

1. Tweak performance settings in game to your liking.
2. Set Visual Hud to "Application Render Timing"
3. Observe game performance. If CPU render time is above 11ms you will miss 90 FPS. If GPU render time is above 11ms you will miss 90 FPS.

To improve CPU render time, drop down the overall settings level in IL2 (e.g. from 'High' to 'Balanced'). To improve GPU render time drop things like supersample, pixel density, clouds, draw distance. I don't know how strong your CPU is, but it could be the culprit. If you have GPU headroom available but not CPU headroom, you can increase supersample/pixel density to get better eye candy but hopefully without knackering your overall performance.

 

Is your 6700K overclocked? Now might be the time to do it if it's not already.

Edited January 16, 2019 by Alonzo

[cmorris975]

Ok Alonzo, so I did as you suggested and checked the pixel density in game.  OTT said I have 1.01/1.01 so hopefully that is close enough.  The game runs pretty well in balanced mode now with a 4 v 4 dogfight.  I'd say it's a big improvement and good enough for now.

 

Thank you everyone for you help getting me up and running.  I should be good to focus on enjoying learning the planes now.  In the future I'll probably end up getting an aftermarket CPU fan and overclocking, but for now I'm happy.  Took hours of working on this from all angles, but hey, I've got the new version of IL 2 working fairly well in virtual reality!  That's pretty great right there.

 

Have fun all.

Edited January 17, 2019 by cmorris975

[Alonzo]

16 hours ago, cmorris975 said:

Ok Alonzo, so I did as you suggested and checked the pixel density in game.  OTT said I have 1.01/1.01 so hopefully that is close enough.  The game runs pretty well in balanced mode now with a 4 v 4 dogfight.  I'd say it's a big improvement and good enough for now.

 

Excellent! If you have GPU breathing room available, you could try OTT pixel density 1.1, which helps smooth out the jaggies and make cockpit instruments more readable. The 1070ti ought to be able to handle it, I think I was running 1.1 on a plain old 1070.

 

You can also gently overclock the 1070ti which will get you to near 1080 performance. Overclocking the GPU is relatively straightforward and very safe -- if anything goes wrong it'll just throttle or reset itself. Despite the scary disclaimer in the following guide, overclocking a GPU is safe if you follow their guide:

 

https://www.overclockersclub.com/guides/gtx_1070ti_oc_guide/

 

 

[II./JG77_Manu*]

To get rid of ghosting (I guess you mean gunsight and alike?) disable the propeller with the 3D Migoto App.

90FPS is not possible in many situations, and not even dependent on your hardware (no processor can run this game in 90FPS in crowded situations, no matter if you run in 720p or a Pimax 8k). But it's not important, 45FPS is good and well for flying or all sims in general.

[cmorris975]

21 hours ago, Alonzo said:

 

Excellent! If you have GPU breathing room available, you could try OTT pixel density 1.1, which helps smooth out the jaggies and make cockpit instruments more readable. The 1070ti ought to be able to handle it, I think I was running 1.1 on a plain old 1070.

 

You can also gently overclock the 1070ti which will get you to near 1080 performance. Overclocking the GPU is relatively straightforward and very safe -- if anything goes wrong it'll just throttle or reset itself. Despite the scary disclaimer in the following guide, overclocking a GPU is safe if you follow their guide:

 

https://www.overclockersclub.com/guides/gtx_1070ti_oc_guide/

 

 

Very helpful.  1.1 definitely made everything clearer and the overclocking helped some more with frame rates.  I just ran an escort bomber career mission with a lot of planes that ran well enough to be fun all the way through.  I'm running low graphics settings but I really don't care as the graphics are still good and I'm just happy larger missions are now fun and playable in VR.  Cool stuff.  Thanks again.  Frame rates are 44-90.

Edited January 18, 2019 by cmorris975