DCS VR Stutters

[MoleUK]

On 4/7/2025 at 8:23 PM, onib89 said:

i have terible stutters in game , even worse when looking to the buildings on the ground closely

Do you mean the terrain jitter as shown here?

 

 

[onib89]

43 minutes ago, MoleUK said:

Do you mean the terrain jitter as shown here?

 

 

That's exactly what is doing! Not only to the ground.. if I make a roll I see the terrain and sky jitter like this

Edited April 13 by onib89

[MoleUK]

45 minutes ago, onib89 said:

That's exactly what is doing! Not only to the ground.. if I make a roll I see the terrain and sky jitter like this

If the sky is jittering as well it might be a different issue, though perhaps I've just not noticed it before. To me it's always been the terrain/buildings that jitter while everything else remained smooth.

There is only one thing that's ever helped reduce/fix the jitter shown in the video for me and a few others, and it's simply by capping DCS' framerate externally.

Simply open up nvidia control panel (not the new nvidia app, avoid that), go to manage 3d settings, then program settings, and then find the DCS exe.

Now scroll down and set "max frame rate" to 1 less than your headsets refresh rate. If running at 90hz, 89fps. Though I would recommend setting your headsets refresh to 72hz and capping it to 71fps personally, as that helps avoid some performance edge case problems.

See if that helps or fixes it at all, if it's not the terrain jitter problem it might not. Additionally you can try also enabling vsync fast and low latency ultra in the nvidia control panel settings, though that might not be necessary.

Edited April 13 by MoleUK

[motjoo]

On 4/7/2025 at 9:23 PM, onib89 said:

Hi. I'm not the first and for sure not the last one with this problem. well i spend 7k on a new pc tobe able to enjoy dcs in vr and flat screens but with no luck...

 

i have terible stutters in game , even worse when looking to the buildings on the ground closely . i tried so many things but nothing helped.. any suggestion that i haven't though of trying yet??? pimax crystal light 90Hz ( i tried 120/ 90upscaled ..72 is awful)

specs

AMD Ryzen 9950X3D 

ROG ASTRAL 5090 OC

64Gb Trident z5 neo rgb 6000Mhz

MB ROG X870E HERO

COOLING ASUS ROG RYUIJIN 360 III EXTREME ARGB

Samsung 9100 Pro 2Tb

Samsung 990 Evo plus 4Tb

Pimax crystal light (local dimming)

Samsung g8 oled 34'' 175hz (+ 2x 8'' monitors 1920x1080 for mfd's) 

 

Windows 11 home (New install)

 

I had similar issues when switching back from the Pimax Super to the og Crystal. FPS was rock solid at 90 FPS yet still I kept having these stutters as shown in the video here in this topic. 
Nothing I did fixed the issue until I remembered I capped the FPS in DCS settings to 90 FPS (following a tip for the Pimax Super). Once I set the FPS limit to above 90 the stutters went away and it’s butter smooth again.

 

[dutchili]

Can't ED implement some kind of 'vr-sync' so we don't have to fool around with settings so much and hope Windows does not assign something else to a 'render core' causing 1 frame 'off'?

[speed-of-heat]

29 minutes ago, dutchili said:

Can't ED implement some kind of 'vr-sync' so we don't have to fool around with settings so much and hope Windows does not assign something else to a 'render core' causing 1 frame 'off'?

whilst this is a "Good idea" on the face of it the problem isn't universal and nor is the solution e.g. capping frame rates causes me problems...