"Stutter" when looking at the ground

[flyinj]

I've been tweaking my VR settings for the past few days, and one thing I can't get rid of is "stuttering" when looking at the ground passing to the left or right out of the cockpit. Every .5 seconds there is a tiny microstutter when looking at the ground.

 

I thought it might have been an artifact of ASW, but I've gotten a solid 90 fps with ASW off in a 1v1 quick battle, but the ground stuttering is still present. 

 

Is there any fix for this? It is really apparent when flying over heavy forests.

 

This is on an Oculus Rift running on a i7 7700, 16 gig of RAM and a 1070ti.

 

[HunDread]

4 minutes ago, flyinj said:

I've been tweaking my VR settings for the past few days, and one thing I can't get rid of is "stuttering" when looking at the ground passing to the left or right out of the cockpit. Every .5 seconds there is a tiny microstutter when looking at the ground.

 

I thought it might have been an artifact of ASW, but I've gotten a solid 90 fps with ASW off in a 1v1 quick battle, but the ground stuttering is still present. 

 

Is there any fix for this? It is really apparent when flying over heavy forests.

 

This is on an Oculus Rift running on a i7 7700, 16 gig of RAM and a 1070ti.

 

 

Did you try with HUD off? (Default key to turn it off is H)

 

HUD is an FPS eater on it's own, but I noticed that with HUD on I have miscrostutters even on 90 FPS. But this is in Multiplayer so not sure it's also present on 1 vs 1 quick mission.

[dburne]

You certainly should not be having any stuttering but may be hard to figure out why.

 

Is your 7700 CPU a K series (7700k) and if so are you overclocking it any?

 

First I would rule out any video driver issue.

 

Download the latest video drivers from Nvidia.

Disconnect your internet cable.

Uninstall your video drivers with Display Driver Uninstaller , choose the  safe mode option.

After reboot ( internet still unplugged), install the latest Nvidia drivers you downloaded previously.

Only install the driver itself and PhysX. Do not install any of that other stuff, especially GeForce Experience.

After installed, go in Nvidia Control Panel and set a profile for IL-2 - change power setting from default of Optimized, to Prefer Maximum Performance. Click Apply. That is the only change you need to do in Nvidia Control Panel.

Reboot the PC.

After reboot hook your internet cable back in.

 

Assuming you are on Windows 10, go in to Windows 10 and disable the game bar, make sure the game settings for Windows are off. You do not want Windows trying to optimize itself to run games, you can do that just fine.

 

Now test it again and see if any improvement on the stuttering.

 

 

 

 

 

 

[flyinj]

Yeah, I disable the HUD every time. Like I said, I'm getting a solid 90 fps when testing in a 1v1 with ASW disabled.

 

As for my driver, I already did a clean driver install, had the game bar disabled and my Nivida control panel is set to maximum performance and optimized for all applications. 

 

All other VR games work perfectly fine and smooth.

 

The ground stutter is extremely subtle, but it is definitely there. It is not noticable when I'm looking forward or back, only when looking out of the left or right.

 

Edited January 29, 2019 by flyinj

[Guest deleted@134347]

for what it's worth give the below registry changes a try. I tested them yesterday and they seem to have improved my experience somewhat noticeably.

 

 

 

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile
SystemResponsiveness = 0

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile\Tasks\Games
GPU Priority = 8
Priority = 6
Scheduling Category = High

 

[dburne]

1 hour ago, flyinj said:

Yeah, I disable the HUD every time. Like I said, I'm getting a solid 90 fps when testing in a 1v1 with ASW disabled.

 

As for my driver, I already did a clean driver install, had the game bar disabled and my Nivida control panel is set to maximum performance and optimized for all applications. 

 

All other VR games work perfectly fine and smooth.

 

The ground stutter is extremely subtle, but it is definitely there. It is not noticable when I'm looking forward or back, only when looking out of the left or right.

 

 

You might also try disabling Hyper Threading for your CPU if you have not already tried that.

[ironk79]

 

13 hours ago, dburne said:

 

You might also try disabling Hyper Threading for your CPU if you have not already tried that.

This, disableing HT made a noticable difference even for my CPU

[flyinj]

If I can't disable HT in my BIOS, there is no other way to do it, right?

 

Unfortunately my BIOS doesn't have that option.

[dburne]

2 hours ago, flyinj said:

If I can't disable HT in my BIOS, there is no other way to do it, right?

 

Unfortunately my BIOS doesn't have that option.

 

That is odd - but no not that I would be aware of.

[flyinj]

Ah, I found how to disable it, it was in an odd menu in  the BIOS.

 

Huge difference in frame rate. The stuttering is now gone!

 

It sucks that I'll need to reboot my PC to switch off hyperthreading every time I want to play... I hope that the devs can fix this issue.

 

[dburne]

8 hours ago, flyinj said:

Ah, I found how to disable it, it was in an odd menu in  the BIOS.

 

Huge difference in frame rate. The stuttering is now gone!

 

It sucks that I'll need to reboot my PC to switch off hyperthreading every time I want to play... I hope that the devs can fix this issue.

 

 

 

I just leave mine disabled.

[WB_jokkr]

Mind sharing this hidden place in bios. Ive looked and no can find (Alienware MB)

[dburne]

12 minutes ago, JG26jokkmccarthy said:

Mind sharing this hidden place in bios. Ive looked and no can find (Alienware MB)

 

Should not be hidden, if your CPU supports multithreading it should be there.

What CPU?

[WB_jokkr]

7700. Non k

 

another thread mentioned it did support multithreading

 

 

[dburne]

1 hour ago, JG26jokkmccarthy said:

7700. Non k

 

another thread mentioned it did support multithreading

 

 

 

Should be there in your bios then, what motherboard?

Edit: I see it is an Alienware, it should be in there. May just be labeled HT.

Edited February 1, 2019 by dburne

[Panzerlang]

I get it too but it's very minimal and random. My 8600k doesn't have HT, so I can't turn that off. GTX1080 and pretty solid 90fps.

[dburne]

1 minute ago, Uffz-Prien said:

I get it too but it's very minimal and random. My 8600k doesn't have HT, so I can't turn that off. GTX1080 and pretty solid 90fps.

 

If it does not have HT, then it is already off.

[Panzerlang]

It was ironical. Lol.

[Jack_Immondizia]

sorry if i reopen  this old topic, but I have the same problem: when I look to the ground i have microstuttering, also when i have 45 fps. I play in vr (oculus rift 2), I have disabled Hyperthreading from the bios and I have tried to put all to low graphic settings, but the microstutters is always here. 

I remember that this problem wasn't exist before the 4.007 patch, but i'm not sure, because I played with another joystick before the last patch, without ffb, now I play with sidewinder ffb2 (I waiting a gladiator-k). Is the joystick the problem or some of you have the same problem without this joystick? I've tried to disable also the ffb... but nothing, the stuttering is always here. 

 

my spec:

cpu: I7 4770

gpu: nvidia geforce gtx 970

ram: 8gb ddr3

hd: is not a ssd

Edited June 19, 2020 by Jack_Immondizia

[SCG_Wulfe]

On 6/18/2020 at 3:36 PM, Jack_Immondizia said:

sorry if i reopen  this old topic, but I have the same problem: when I look to the ground i have microstuttering, also when i have 45 fps. I play in vr (oculus rift 2), I have disabled Hyperthreading from the bios and I have tried to put all to low graphic settings, but the microstutters is always here. 

I remember that this problem wasn't exist before the 4.007 patch, but i'm not sure, because I played with another joystick before the last patch, without ffb, now I play with sidewinder ffb2 (I waiting a gladiator-k). Is the joystick the problem or some of you have the same problem without this joystick? I've tried to disable also the ffb... but nothing, the stuttering is always here. 

 

my spec:

cpu: I7 4770

gpu: nvidia geforce gtx 970

ram: 8gb ddr3

hd: is not a ssd

 

Had the same problem, you need to lower graphics settings and super sampling until you aren't taxing your system so much. Even if the average FPS look stable enough, it means your system can't keep up and FPS is fluctuating enough to cause micro-stutters. 

[Beaufort]

Is it still applicable to turn off hyper threading for vr? . I am using the reverb G2 with a 1080ti and have micro stuttering when looking at the ground

Edited September 1, 2021 by Beaufort

[SCG_Fenris_Wolf]

Should be turnt off.

 

Intel GPUs of this age where absolutely prone to microstutter, especially when OC'd, at least that's my experience (I had two and both did that). 

 

You could try to disable any Hardware monitoring program, especially those of GPUs (MSI Afterburner, fpsVR, etc). Only have a clean game running, and take a look if it still stutters. If it does not stutter, there you go, if not, it may really be the CPU. 

 

If you upgrade to today's CPUs, I recommend a Ryzen 5800X on an X570 board - but make sure to apply a support request for the revision 2 cable from HP first!! Link to the information you need is here 

[Beaufort]

Thanks for the reply. I have turned it off now. Do you know of the main in game graphics settings to tweak for this as it is still slightly stuttering on the ground . I am running at 50% resolution whilst using your performance config settings. I am using a powered usb 3 hub which has individual on/off switches for each usb port. A temporary fix for turning the headset on and off with the pc still running. Many thanks for the help .

[dburne]

24 minutes ago, Beaufort said:

Thanks for the reply. I have turned it off now. Do you know of the main in game graphics settings to tweak for this as it is still slightly stuttering on the ground . I am running at 50% resolution whilst using your performance config settings. I am using a powered usb 3 hub which has individual on/off switches for each usb port. A temporary fix for turning the headset on and off with the pc still running. Many thanks for the help .

 

Also make sure you have HAGS disabled in Windows 10.

https://www.tenforums.com/tutorials/150440-turn-off-hardware-accelerated-gpu-scheduling-windows-10-a.html

Edited September 2, 2021 by dburne

[SCG_Fenris_Wolf]

Hey Beaufort

Well, my settings are for competitive spotting, so they are agnostic to performance or quality, but focus solely on that part. Namely blurry ground filter, not too much supersampling, getting a static image by max or 0 shadows, avoiding traps like fxaa (which knows no depth so aircrafts merge against the forest/ground), etc.

They are also meant for RTX3070/3080 as a minimum, so for this system I'm afraid you need to find its own speed. You may have to tune down the resolution accordingly.

[Beaufort]

I have settled on 60% resolution in steamvr and am getting a steady 90 fps most of the time now. Its a massive improvement visually on the original rift I had previously been using. I have tweaked a few of your in game settings but stuck with your performance config.

[SCG_Fenris_Wolf]

Hey mate, that's good   Just remember, it's absolutely recommended to use FSR and run the G2 at 3100x3100 resolution in SteamVR, then use FSR between 0.67 to 0.77, sharpener at 0.9 and radius at 0.4

 

Don't forget to disable AA and Sharpening Filter in IL-2 itself before.

 

You will get a better picture, especially in the center, this way than with 60% naked SteamVR SS.?

[Beaufort]

Thanks for this. I had never even heard of FSR. Atfer trying to download the AMD Radeon software I get an error 173 message. I presume this is because it has detected my nvidia gpu. I only recently installed the newest Nvidia drivers for the 1080ti. Have Nvidia added something recently to stop FSR being used with there gear ? 

Here is a picture of the problem whilst the software is detecting my hardware :

 

https://gyazo.com/c809dd23e624c3dc99aae1c74f13a545

Edited September 4, 2021 by Beaufort

[firdimigdi]

You don't need AMD software for this.

 

Just use the dll from here: https://github.com/fholger/openvr_fsr

[Beaufort]

Is the correct path to replace the file in game/bin for IL2 ? Many thanks for the help.

Edited September 5, 2021 by Beaufort

[firdimigdi]

Yes, bin/game - the same directory that il-2.exe resides in.

[Beaufort]

Its definitely an improvement, thanks. Steam vr is set at 100% which is 3176 x 3100 for me.  If I was aiming for 50% res in steam vr what number would I set FSR's resolution to as its currently at 0.67 . I think Fenris has worked that out to 60% equivalent in steamvr.

Edited September 5, 2021 by Beaufort

[SCG_Fenris_Wolf]

No noo, you can see the result after the next restart in your startup.cfg

 

It shows or_height and or_width that's the resolution.

[Beaufort]

I have FSR set to .70 which reads this resolution in startup.cfg :

 

or_height = 2170

or_width = 2223

 

Thanks for pointing this out ! I have been testing offline up until now and it is very smooth with these settings. Is there anything I can tweak to improve identifying aircraft online. Had a flight on wings of liberty and found this nearly impossible.

 

[SCG_Fenris_Wolf]

Yes,

 

Landscape Detail must be Blurry (calm picture)

Keep Shadows on High or Extreme (calm picture)

Keep Sharpening in IL-2 off (use FSR's sharpen only)

Do not use IL-2's FXAA or MSAA.

 

If you break these rules, e.g. using FXAA/MSAA/sharpen from IL-2 and run the picture afterwards through the FSR Upscaler, there will be a loss of information, and you will have a harder time spotting especially at range or above forests. If you have trouble IDing, gradually increase FSR's sharpening.

 

Make sure to always keep 90Hz. Even 70Hz makes IDing much harder.?

[Beaufort]

I think my problem is online. As soon as I fly on Wings of Liberty my frame rates drop below 70 at times even with all of this setup making it difficult to ID . Would increasing the fsr help with IDing as well as increasing sharpening ?