VR Tweaking guide for ghosting?

[tarnlicht]

Hi all, 

 

I'm quite a rookie with VR. I just start last month after years of using track ir. i have to say it's quite amazing experience. i recently upgrade my system for better performance but i still run in some problems.  here is my system info etc. 

Motherboard: Asus Strix 790-F Wifi II 

CPU: I9 14900K 

GPU: Asus 4090 TUF OC 

RAM:  Corsair Dominator 7200Mhz (2x24GB) DDR5

SSD: Samsung 990 PRO 4TB Heatsink. 

VR HMD: Meta Quest 3 with Meta Linkcable

I already did lots of research for the settings from people with a similar system, but it seems that i still run in some performance issues. 

I noticed that i maintain 90 fps (most situations) with DLAA and DLSS Quality mode but when i am merging with a enemy the jet has awful ghosting textures like its almost a 2x or triple jet. when i turn DLSS off the ghosting seems to be a lot less but it's impossible to maintain that fps. 

i already turned the HZ to 72 but with DLSS turn off it is keep struggling to maintain fps. 

in the beginning of tweaking i read on forums that people crank the bitrate to 960, i did try that out but then i have continuously audio stuttering.  

now as i said I'm very new to VR so i don't know what to expect in nowadays vr gaming. so i was hoping you guys have some tips in tweaking my current settings which i share.

 

Greetings

 

 

 

[Qcumber]

18 minutes ago, tarnlicht said:

Hi all, 

 

I'm quite a rookie with VR. I just start last month after years of using track ir. i have to say it's quite amazing experience. i recently upgrade my system for better performance but i still run in some problems.  here is my system info etc. 

Motherboard: Asus Strix 790-F Wifi II 

CPU: I9 14900K 

GPU: Asus 4090 TUF OC 

RAM:  Corsair Dominator 7200Mhz (2x24GB) DDR5

SSD: Samsung 990 PRO 4TB Heatsink. 

VR HMD: Meta Quest 3 with Meta Linkcable

I already did lots of research for the settings from people with a similar system, but it seems that i still run in some performance issues. 

I noticed that i maintain 90 fps (most situations) with DLAA and DLSS Quality mode but when i am merging with a enemy the jet has awful ghosting textures like its almost a 2x or triple jet. when i turn DLSS off the ghosting seems to be a lot less but it's impossible to maintain that fps. 

i already turned the HZ to 72 but with DLSS turn off it is keep struggling to maintain fps. 

in the beginning of tweaking i read on forums that people crank the bitrate to 960, i did try that out but then i have continuously audio stuttering.  

now as i said I'm very new to VR so i don't know what to expect in nowadays vr gaming. so i was hoping you guys have some tips in tweaking my current settings which i share.

 

Greetings

 

 

 

Try running without any AA and see how it looks. I am using that a lot these days. No ghosting or blurring at all. 

To minimize ghosting with DLSS you need to start with a high resolution. Try adding 1.3 multiplier into OTT. The other thing to try is update to the latest version of DLSS simply by downloading here and then replacing the one in the bin-mt folder. 

https://www.google.com/amp/s/www.techpowerup.com/download/nvidia-dlss-dll/%3famp

You can also use DLSStweaks to change the preset (I find F is the best) and adjust the scaling. 

https://github.com/emoose/DLSSTweaks

 

[tarnlicht]

Alright thank you!  Gonna try that out now. 

[av8orDave]

2 hours ago, tarnlicht said:

Hi all, 

 

I'm quite a rookie with VR. I just start last month after years of using track ir. i have to say it's quite amazing experience. i recently upgrade my system for better performance but i still run in some problems.  here is my system info etc. 

Motherboard: Asus Strix 790-F Wifi II 

CPU: I9 14900K 

GPU: Asus 4090 TUF OC 

RAM:  Corsair Dominator 7200Mhz (2x24GB) DDR5

SSD: Samsung 990 PRO 4TB Heatsink. 

VR HMD: Meta Quest 3 with Meta Linkcable

I already did lots of research for the settings from people with a similar system, but it seems that i still run in some performance issues. 

I noticed that i maintain 90 fps (most situations) with DLAA and DLSS Quality mode but when i am merging with a enemy the jet has awful ghosting textures like its almost a 2x or triple jet. when i turn DLSS off the ghosting seems to be a lot less but it's impossible to maintain that fps. 

i already turned the HZ to 72 but with DLSS turn off it is keep struggling to maintain fps. 

in the beginning of tweaking i read on forums that people crank the bitrate to 960, i did try that out but then i have continuously audio stuttering.  

now as i said I'm very new to VR so i don't know what to expect in nowadays vr gaming. so i was hoping you guys have some tips in tweaking my current settings which i share.

 

Greetings

 

 

 

A couple comments and a couple questions:

Questions: Are you using both Oculus Debug Tool and Oculus Tray Tool? You should only use one. I'd recommend Debug Tool.

Is your DCS pixel density set to 1.0 (in the VR options in game)?

Comments: DCS badly needs optimization and particularly in complex missions, you'll never see great performance, even with a robust system. I have a 7950x, 4090, and 64GB DDR5 and am usually pretty happy when I am getting a consistent 72 fps. The current update, even with settings turned kind of low, features a widely-reported small "micro-stutter" that seems to be impossible to tune-out of the picture, so no need driving yourself nuts looking for the perfect settings.

Regarding ghosting, I'd suggest turning the pixel density to 1.0 in the Oculus software, leave DCS pixel density at 1.0, but try turning the Oculus Debug Tool pixels per display override to 1.8 or 2.0. I run DLSS, which has a small amount of ghosting, but better than the performance I get out of MSAA or no anti-aliasing settings. I often run complex DCS Retribution missions, so I need DLSS turned on or the performance sucks. You may not need this. I'd also leave the refresh rate at 72 hz. 

Your DCS Settings look fine. You may think about turning visibility range down to medium, and maybe shadows up to high (I like the higher fidelity of the "high" shadows). You might consider turning Grass/Clutter to "0" as it looks kind of rough and hits performance, and isn't really visible from the air, where you'll spend 99% of your time. You might also consider turning the LOD switch factor to 0.5, as it gives a performance bump.

All of that to say getting rid of ghosting in DCS's current state is pretty difficult, even with a nice system. Your best bet is figuring out the right combination of anti-aliasing, upscaling (DLSS), and pixel density to give the best appearance / performance tradeoff. Don't be afraid to experiment.

Edit: One more suggestion: you might consider giving Virtual Desktop a try. It has some benefits over the Meta software, is wireless, and gives pretty good performance.

Edited August 5, 2024 by davidrbarnette

[Qcumber]

25 minutes ago, davidrbarnette said:

Are you using both Oculus Debug Tool and Oculus Tray Tool? You should only use one. I'd recommend Debug Tool.

OTT is just an interface to access ODT. You can use both. If you change a setting from OTT it will update in ODT. The advantage of OTT is you can set hotkeys and it gives you a lot more control over ASW. However, OTT does not allow you to select the "quality" sharpening setting. 

25 minutes ago, davidrbarnette said:

One more suggestion: you might consider giving Virtual Desktop a try. It has some benefits over the Meta software, is wireless, and gives pretty good performance.

I agree. I am using VD all the time these days. It takes a bit more setting up though with a dedicated router etc. I run VD without any AA and it looks pretty good. Sharp and no blurring. Jaggy is some places but not too bad. Looks better than with meta but this might be due to Meta's built in sharpening. 

Edited August 5, 2024 by Qcumber

[Phantom711]

@tarnlicht

I noticed, that you run with Asynchronous Spacewarp (ASW) turned OFF.

Is that a deliberate decision or just because the friend of a cousin told you that „ASW is bad“?

Even though any motion reprojection produces some artefacts/wobbling etc. of its own, I find ASW to be a very at what it‘s doing and it might very well solve your issues of double vision/ghost aircraft.

Edited August 5, 2024 by Phantom711

[av8orDave]

1 hour ago, Qcumber said:

OTT is just an interface to access ODT. You can use both. If you change a setting from OTT it will update in ODT. The advantage of OTT is you can set hotkeys and it gives you a lot more control over ASW. However, OTT does not allow you to select the "quality" sharpening setting. 

I agree. I am using VD all the time these days. It takes a bit more setting up though with a dedicated router etc. I run VD without any AA and it looks pretty good. Sharp and no blurring. Jaggy is some places but not too bad. Looks better than with meta but this might be due to Meta's built in sharpening. 

 

I'll have to see what kind of results I get on VD with no AA. Might be worth a try as I've never really considered it. Thanks for the suggestion!

[Qcumber]

I only thought of this a few days ago when comparing VD and meta again after the update. 

[LOW_Hitman]

Am 5.8.2024 um 19:16 schrieb Phantom711:

@tarnlicht

I noticed, that you run with Asynchronous Spacewarp (ASW) turned OFF.

Is that a deliberate decision or just because the friend of a cousin told you that „ASW is bad“?

Even though any motion reprojection produces some artefacts/wobbling etc. of its own, I find ASW to be a very at what it‘s doing and it might very well solve your issues of double vision/ghost aircraft.

 

I tried ASW on - it seems smoother but for example in external views some parts of the plane are gettin cut or tear during movement, terrible (antennas, etc.)

[tarnlicht]

On 8/5/2024 at 5:33 PM, davidrbarnette said:

A couple comments and a couple questions:

Questions: Are you using both Oculus Debug Tool and Oculus Tray Tool? You should only use one. I'd recommend Debug Tool.

Is your DCS pixel density set to 1.0 (in the VR options in game)?

Comments: DCS badly needs optimization and particularly in complex missions, you'll never see great performance, even with a robust system. I have a 7950x, 4090, and 64GB DDR5 and am usually pretty happy when I am getting a consistent 72 fps. The current update, even with settings turned kind of low, features a widely-reported small "micro-stutter" that seems to be impossible to tune-out of the picture, so no need driving yourself nuts looking for the perfect settings.

Regarding ghosting, I'd suggest turning the pixel density to 1.0 in the Oculus software, leave DCS pixel density at 1.0, but try turning the Oculus Debug Tool pixels per display override to 1.8 or 2.0. I run DLSS, which has a small amount of ghosting, but better than the performance I get out of MSAA or no anti-aliasing settings. I often run complex DCS Retribution missions, so I need DLSS turned on or the performance sucks. You may not need this. I'd also leave the refresh rate at 72 hz. 

Your DCS Settings look fine. You may think about turning visibility range down to medium, and maybe shadows up to high (I like the higher fidelity of the "high" shadows). You might consider turning Grass/Clutter to "0" as it looks kind of rough and hits performance, and isn't really visible from the air, where you'll spend 99% of your time. You might also consider turning the LOD switch factor to 0.5, as it gives a performance bump.

All of that to say getting rid of ghosting in DCS's current state is pretty difficult, even with a nice system. Your best bet is figuring out the right combination of anti-aliasing, upscaling (DLSS), and pixel density to give the best appearance / performance tradeoff. Don't be afraid to experiment.

Edit: One more suggestion: you might consider giving Virtual Desktop a try. It has some benefits over the Meta software, is wireless, and gives pretty good performance.

 

Hi there, 

 

Thanks for the reply. 

I'm yhea i both started OTT and Debug tool. i will use the debugtool then. 

Pixel Density is set to default and i don't use the super sampling in the OTT nor Debug tool. Want i do is, i override the resolution in OpenXR to the same resoliution as Virtual Desktop Godlike Settings. 3072. 

 

i did try VD but i still prefer the link cable to be honest. at the moment i think the only way is to use DLSS because the other variant giving me such a unstable FPS. 

did you also do some changes in the Nvidia controlpanel? 

 

greetings, 

On 8/5/2024 at 7:16 PM, Phantom711 said:

@tarnlicht

I noticed, that you run with Asynchronous Spacewarp (ASW) turned OFF.

Is that a deliberate decision or just because the friend of a cousin told you that „ASW is bad“?

Even though any motion reprojection produces some artefacts/wobbling etc. of its own, I find ASW to be a very at what it‘s doing and it might very well solve your issues of double vision/ghost aircraft.

 

Yhea i read that Screen tearing is a bigger issue with ASW turn on. Do you have it on auto? i will give it a try for sure. 

 

greeting, 

[sleighzy]

For DLSS ghosting have a look at this and see if it helps you at all: