investigating VR FPS

[Anhel]

The same hier, Apache is completely in Cockpit 10-15-FPS unplayable, suttering movement, it's really bad. All other modules are running at 80-90 FPS. Stable Mode...

 

Windows 11 64Bit | Asus ROG STRIX Z690-E |

Intel Core i9-12900KF | 32GB Corsair Vengeance schwarz DDR5-5600 DIMM CL36 Dual Kit |

Samsung SSD PRO EVO M.2 1TB - Samsung SSD M.2 EVO 1TB | ASUS ROG Strix RTX 3070 Ti OC | LG 27" 27GL850 |

VPC WarBRD Flight Stick | TWCS Throttle |

 

Edited May 25, 2022 by Anhel

[rcjonessnp175]

Turn textures to medium…..

[Hammer1-1]

yep, and/or there are cockpit textures that reduce the resolution from 4k to 2k and removes the mipmaps. i get playable 90fps in vr with that cockpit, albeit with lots of modifications AND running in vr.

[Anhel]

Thanks Hammer1-1, thats it,  i get playable 70-90fps  with that Mod in  cockpit now....

And Big Thanks to Unicode4all for this Mod.

https://www.digitalcombatsimulator.com/de/files/3321192/

Edited May 26, 2022 by Anhel

[TZeer]

@Anhel big difference in visual quality of the cockpit with that mod?

Even though I run a RX6900XT, I'm always maxed out on the VRAM usage. And when I'm flying over forest area, for some reason I get smooth frames looking straight ahead. But turning my head 90 degrees left/right I always experience stutters. Not so much in dessert areas. 

I can also see this behavior on my FPS. Having the OpenXR toolkit open I can see the reported framerate is 45 FPS. But turning my head it starts dipping down to 40-43, inducing stutter.
Toolkit also report "Target Missed" even though my frametime on the CPU and the GPU is nowhere near the limit of 22ms for 45 FPS. CPU is is usually around 10-12 ms telling me I have 60-70% pverhead while the GPU is often around 16-19 ms.

[Hammer1-1]

3 hours ago, TZeer said:

@Anhel big difference in visual quality of the cockpit with that mod?

Even though I run a RX6900XT, I'm always maxed out on the VRAM usage. And when I'm flying over forest area, for some reason I get smooth frames looking straight ahead. But turning my head 90 degrees left/right I always experience stutters. Not so much in dessert areas. 

I can also see this behavior on my FPS. Having the OpenXR toolkit open I can see the reported framerate is 45 FPS. But turning my head it starts dipping down to 40-43, inducing stutter.
Toolkit also report "Target Missed" even though my frametime on the CPU and the GPU is nowhere near the limit of 22ms for 45 FPS. CPU is is usually around 10-12 ms telling me I have 60-70% pverhead while the GPU is often around 16-19 ms.

No, not really. Unless you're expecting 4k resolution, then no. They dont downsize either when you select low/med/high textures in the options menu. I cant tell a difference either.

[Hippo]

I have randomly and ocassionally seen a sudden drop to 17 fps which makes the sim unplayable.  I have been able to recover by switching out to Oculus Home and back.  I have seen nothing obvious that could've been causing the issue; possible hunch / long shot: maybe happens when another aircraft (e.g. wingman) is near and comes into view and tips the system over.

I include the task manager screens for my spec, NOT an instance of when the issue is happening, although when it did happen I don't think it was any different - didn't screenshot it at the time - sorry.  When it happens again I will update.  I usually get an acceptable and playable 36 fps which is about as much as I can hope for with my setup, and is what I was seeing when I took the screenshots.

I am running native Oculus, non-Steam version. Oculus Quest 2.  Caucasus theatre.

(Marianas is unplayable on my system with the F-18.  Haven't even tried that theatre with the apache.)

EDIT UPDATE:  as suggsted here I have tried Medium textures instead. Problem hasn't ocurred since I did.  VRAM usage is noticably lower. As can be seen in the scrrenshot, on high tex it's almost up to limit.  Not so with medium. 

I was holding off as I was expecting the sim to look a lot worse, but, tbh, I haven't noticed any difference.

 

Edited May 30, 2022 by Hippo

[baol]

On 5/26/2022 at 10:51 AM, Anhel said:

Thanks Hammer1-1, thats it,  i get playable 70-90fps  with that Mod in  cockpit now....

And Big Thanks to Unicode4all for this Mod.

https://www.digitalcombatsimulator.com/de/files/3321192/

 

I don't have a "Liveries" folder in my saved games directory of DCS. Should I just create a folder named it?

[Hammer1-1]

1 minute ago, baol said:

I don't have a "Liveries" folder in my saved games directory of DCS. Should I just create a folder named it?

yes

[baol]

2 hours ago, Hammer1-1 said:

yes

Thanks.

I have done as you say but I do not notice any change in the fPS.

How do I know if it has been installed and is working?

[Hammer1-1]

C:\Users\you\Saved Games\DCS.openbeta\Liveries\Cockpit_AH-64D

does your directory look like this? you dont install this in the AH-64D liveries folder, you install it in its own folder.

Edited May 28, 2022 by Hammer1-1

[baol]

3 hours ago, Hammer1-1 said:

C:\Users\you\Saved Games\DCS.openbeta\Liveries\Cockpit_AH-64D

does your directory look like this? you dont install this in the AH-64D liveries folder, you install it in its own folder.

 

This is my directory:

C:\Users\me\Saved Games\DCS\Liveries\Cockpit_AH-64D

I do not have DCS.openbeta folder

[Hammer1-1]

the only other way you're going to know is if you drop the textures down to minimum. if they look identical to the maximum resolution, then that means it installed right. dont believe you can select different cockpits quite yet in the special menu yet.

[baol]

9 hours ago, Hammer1-1 said:

the only other way you're going to know is if you drop the textures down to minimum. if they look identical to the maximum resolution, then that means it installed right. dont believe you can select different cockpits quite yet in the special menu yet.

I have already verified that the mod is correctly installed but I still do not notice a change in fps between having it and not.

I don't understand how other people get such good results with this mod.

Thank you anyway.

 

[Hammer1-1]

well there could be a number of things preventing you from running good fps, and its not always tied to the cockpit textures in the AH64. likely if you are getting bad FPS in that module, you are likely getting bad FPS all over. is it strictly in VR or 2d? have you optimized your pc? My pc is heavily modified even though its a high high end pc (although a tad bit dated) and I get good FPS in the apache...but not as good as other modules. and when I mean heavily modified, I mean my drivers are modified, my VR setup is heavily modified and streamlined, I kill non essential programs like LED lighting and a lot more tweaks behind the scenes with shader mods and what-not. also some of the biggest killers in DCS as for fps is high or ultra clouds, traffic set to heavy, MSAA over 2x, and depth of field being the biggest one.

[oscar19681]

Tried today, Apache module still unplayable in VR because after some time FPS drops to slide show..

[oscar19681]

Still no solution huh? I’m back to playing the Apache on TIR, at least all the other modules run as smooth as a whistle in VR.

[jnr4817]

I’m flying the Apache on a 1070ti and getting 30fps on a rift s. I’ve noticed  after the update, kegeteys shaders don’t offer any benefit, as far as performance. But it’s very playable.