Stuttery gameplay

Hello, it's been about a month since I've played BeamNG, and I unfortunatly am again in need of help for a performance issue.
I've already made a thread about the game running badly in it's normal launch mode, and I was suggested to run it with Vulkan. I did so, and it worked perfectly. Until today.

I launched it with Vulkan, played on WCUSA and my game was very stuttery, as you can see in the video. I am asking why, and whether it can be fixed or it's simply because Vulkan is, as said, unstable. And no, I don't use mods except for Gridmap V1. Anyways I still can't play the game without fearing a performance issue...

Usually I always think about how it could be my fault but here I literally just launched the game after a month, without modifying anything on my pc.

 

Try bringing up the performance graph (Ctrl + Shift + F). See if there's any spikes. Also check if any text at the top of the performance graph is flashing white or red (such as GPU, CPU, etc.). Also, if you don't mind, what are your specs?

 

Well no need for that, fortunately I guess, I lauched the game today and it worked fine. I guess Vulkan really decides whether it wants to work or not depending on the day lol. Also if you're interested my specs are : AMD Ryzen 7 5700X, Nvidia RTX 3080, 32 GB of DDR4 RAM @ 3600 MHZ (2 sticks of 16), the game is installed on an SSD, and I play at 1440p 75hz ultra settings.

 

Lower graphics, remove some mods, clear cache, verify file integrity and try then.

 

Did you update your graphics drivers within that time? That might have done something. Also, I remember having stuttering issues with the game too, but disabling Vsync solved the problem for me...

 

I update my graphics drivers as soon as they're out via Geforce Experience, so no issue there. I tried enabling or disabling Vsync before the recording and it didn't change anything.
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Graphics on low wouldn't change much, I already get more fps than my monitor can display (75) on ultra settings. I don't use mods, so no issue here. Clearing cache and verifying files integrity could've changed something, but as said earlier the issue somehow disappeared after a day, so I couldn't test that.
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Well nevermind my last message, I launched the game today and it lagged the same way. I tried verifying the games files and clearing the cache but that didn't change anything...
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Here's a video, it does in fact flash in white and red. As you can see it's not pleasant to try drifting with this issue.

 

Just to be clear, the game still lags when using DirectX?

 

Well it does not have the stutter issue, but it does have another one... : https://www.beamng.com/threads/a-de...ation-issue-games-default-engine-video.96202/

 

Huh, weird. I know for me that Vulkan sometimes stutters and is sometimes unstable, but usually DirectX is solid, and I don't have any spikes or unexplained fps drops... It's hard to tell from your Vulkan video what component might be causing the issue, since when it lags, they all light up...
I'm wondering if maybe it could be some other application somehow? Have you tried disabling startup programs in Task Manager and any screen recording software that records in the background?

 

I thought it said sluttery gameplay-

 

I always play in my "optimal performance" conditions, so nothing else runs in the background except Windows 10 automatically ran stuff, Steam obviously, Corsair's Icue and MSI Afterburner (not used for overclocking btw, only for a better GPU fan curve). The game is running in full screen if you were asking too.
Also it happens whether I'm recording (via Nvidia's recording software) or not. It is independant of that, I've recorded many videos in the past without issues.
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Bruh

 

I'm noticing that even though you have vsync enabled, the fps is jumping past the fps limit vsync applies (75 fps). Maybe this happens anyway despite vsync being enabled, but maybe try setting 75 as the max fps in both the game's settings and nvidia control panel, and see if the fps jumps above 75 fps. Also try turning on vsync for the game executable from nvidia control panel as well...
Also, it looks like it only happens when you're moving?

 

It does in fact override the Vsync fps limit for some reason. I saw that before starting this thread, and already tried setting both in-game Vsync and fps limit to 75, with no positive results. I did not try via Nvidia's panel before, so I ran a test today, starting the game normally first and then activating Vsync from Nvidia's control panel, but as I said earlier this bug seems to happen randomly, so both test ran fine today...
Also yes it seems like the bug happens when moving only.

 

If the stuttering starts happening again, see if it happens when moving the camera around the car, or moving around in freecam, without moving the car. If it happens when doing that, it's most likely something to do with graphics/GPU. If it only happens when the car is moving, then something else must be causing the issue...

 

Well it did happen again. It isn't random in the end, it is time-based. I played for 20 to 30 min and it came back. I tried freecam, look at the results.

I suspected an SSD related issue, as I had a message from the Epic games application, while downloading another game, that my SSD was almost full and it could slow down my current dowload. So maybe that could impact BeamNG as it is installed on the same SSD, except there's still 55 GB of free space, which I believe isn't gonna cause that much trouble.

 

Yeah, you have plenty of room on your SSD, more than enough for BeamNG to be able to cache stuff and store other things. It looks to be something CPU related from what I can tell. Does it still stutter, even if its less noticable, when you lower the graphics quality? You can try looking at Task Manager, or any other detailed performance monitoring software to see whats going on with your CPU usage and details. I use Process Explorer by Sysinternals, since it doesn't round the CPU usage, and also just gives more info than Task Manager.

 

Here's a try with normal graphics settings and RivaTuner Statistics on. Trying to drift is basically impossible because any input timing is ruined by the stutter.

 

Okay, it's got to be something to do with your CPU, since the weird stuttering appears in the CPU and Update sections of the performance graph. Do you have any hardware-accelerated options enabled? Like the one in Windows Graphics settings? I don't think hardware-accelerated GPU scheduling affects the CPU though, but either way...

 

I don't know if I have these "Windows graphics settings", I never heard about it. I've seen something like that on Windows 11, but I'm on Windows 10 so I don't think I ever touched anything like that.
Also as I said before I always try to see how it could be my fault (in that case my GPU's fault), but my PC works fine with everything else, whether it's other games, apps, ect... So I think BeamNG's at fault here.

 

The graphics settings can be found by just typing "Graphics settings" into Windows search. There, you can enable or disable hardware-accelerated GPU scheduling, but since you said you've never gone into those settings, I'd assume the setting would be off. Also, in there, you can specify which graphics (integrated or discrete) an executable uses. Other than that though, I'm not sure what else you can try to figure out the issue, sorry...