Something is severely wrong in VR nowadays

[AtlasRedux]

ETS2 has always had bad performance due to the atrociously bad graphics engine, but exceptionally so in VR. But it's always been playtable with low to mid settings with some manual resolution tweaking.
But something is severely wrong now, and I see others have posted the same experience, incorrectly thinking it's a performance issue.

Current versions has insane jitter/judder which feels like the game is skipping forward in time on intervals, constantly. Everything flows fine, but everything teleports around.

This is not a performance issue, this does not change no matter what settings I use.
It doesn't change either depending on Virtual Desktop, Steam Link or Air Link. Changing the OpenXR API also doesn't change anything. It's the exact same issue.
It has nothing to do with mods, I've tried deactivating all mods (not that it would make any sense that mods skip time anyways).
I've also tried different drivers. Changes nothing.

It's with ETS2 only this happens. I've got a massive library and I've tested with several of my games and other software to triple check. Nothing is wrong on my end. Everything else works perfectly.

And as stated, ETS2 USED to run perfectly in VR. But with recent versions, these "time skips"/teleports have started to happen.
And again, not only I who have noticed this.

Basically, it's completely unplayable in VR now.
No idea on AMD GPUs though, as I don't have one.

MSI RTX 4090 Suprim X
AMD 7950X3D
64GB 6GHz RAM
12.5GBps NVMe SSD (2TB)
TP-Link AXE5400/AXE75 dedicated WiFi router (which works absolutely perfectly with all other games and software and is the recommended mid range router for VR)

[breadpain]

SCS is aware. Even people with great PC machines are experiencing this. The core engine needs major optimisation and they are working on it. At this point, the game engine is the bottle neck, so despite a beast of a PC, many know what you are dealing with. Hopefully we'll get it soon.

[AtlasRedux]

Originally posted by breadpain:

SCS is aware. Even people with great PC machines are experiencing this. The core engine needs major optimisation and they are working on it. At this point, the game engine is the bottle neck, so despite a beast of a PC, many know what you are dealing with. Hopefully we'll get it soon.

But, again, it's not a performance issue. With low settings, you get 120FPS completely fine. The FPS is stable.
But things teleport and jutter around. This did NOT happen on earlier versions a few months ago.

[Wolfgang]

Please keep in mind that VR is not officially supported by SCS. It is only worked on by one employee in their free time. If you have issues with VR you should post it to the SCS Forum.

[AtlasRedux]

Originally posted by Wolfgang:

Please keep in mind that VR is not officially supported by SCS. It is only worked on by one employee in their free time. If you have issues with VR you should post it to the SCS Forum.

I know SCS don't care about VR, that's why I'm posting here in case someone knows of an obscure fix. I mean, SCS doesn't even care about their main game, the entire engine is and always has been absolutely atrocious, VR or not.

[Wolfgang]

Originally posted by AtlasRedux:

Originally posted by Wolfgang:

Please keep in mind that VR is not officially supported by SCS. It is only worked on by one employee in their free time. If you have issues with VR you should post it to the SCS Forum.

I know SCS don't care about VR, that's why I'm posting here in case someone knows of an obscure fix. I mean, SCS doesn't even care about their main game, the entire engine is and always has been absolutely atrocious, VR or not.

In what way? Because I have a smooth experience on my end with an i7-11800H, 16GB RAM and a RTX3070 Laptop GPU with settings on high and FPS capped to 60.

[AtlasRedux]

Originally posted by Wolfgang:

Originally posted by AtlasRedux:

I know SCS don't care about VR, that's why I'm posting here in case someone knows of an obscure fix. I mean, SCS doesn't even care about their main game, the entire engine is and always has been absolutely atrocious, VR or not.

In what way? Because I have a smooth experience on my end with an i7-11800H, 16GB RAM and a RTX3070 Laptop GPU with settings on high and FPS capped to 60.

It has 20 years old graphics, and should run 120FPS in 4K at max settings without any issues. I can play Resident Evil 4 remake with every settings maxed, with overscaling and raytracing, without using DLSS upscaling and frame-generation in 120FPS stable. What are you arguing about? Do you expect Tomb Raider 1 to only run at 60FPS too? Nonsense.
60FPS is also unplayable in VR. 90FPS is absolute minimum to avoid motion sickness. 90FPS/Hz is also absolute minimum on an OLED TV/monitor, due to OLED stutter. This is 2024, soon 2025. We're not living in 2005.
You should EXPECT a game with 20 year old graphics to run okay even on a 10XX series card. Yet it doesn't. As the first reply here also pointed out.
The engine is INFAMOUS for its terrible performance. It also has severe issues with hardcoded LOD issues and culling. It's absolutely insane how bad the LOD and culling is. I have no other game that runs this atrociously bad. Well, I used to have Derail Valley, that actually ran even worse, but that's what you get for using an old version of Unity of course.

It's kind of nonsense bringing up a non-argument, when even SCS themselves have acknowledged that the engine is horrible and they're trying to figure out something to fix it.

[Wolfgang]

1) Comparing games doesn't work due to different engines. Flash games are not the same as CP2077 for example.
2) Who would have thought that the game isn't made for VR? Almost as if it isn't officially supported.

Btw. if you think the graphics are 20 years old then you either have never played games 20 years ago or your graphic settings are at the lowest possible.

And tell SCS on their forum. You won't change anything by ranting here.

[AtlasRedux]

3. Friendly reminder as well that they FIRED THE PEOPLE WHO WORKED ON THE ENGINE ORIGINALLY, so they're struggling with understanding how to optimize it, since they literally struggle to understand how it actually works themselves.

[Wolfgang]

Originally posted by AtlasRedux:

3. Friendly reminder as well that they FIRED THE PEOPLE WHO WORKED ON THE ENGINE ORIGINALLY, so they're struggling with understanding how to optimize it, since they literally struggle to understand how it actually works themselves.

And you surely got an official source for that, right? Because Pavel is still there. He literally worked on the engine.

Also, using ad hominem isn't supporting your argument.

Btw. most games today still don't have RT. But guess they are also all ancient.
Then again, at least you don't need frame gen in order to play at 30 FPS.

[AtlasRedux]

You think one man developed the entire engine? Wow. We must be back in 1996 when that was still possible! AGAIN, THIS IS STATED BY SCS THEMSELVES.
AGAIN, I only used raytracing as ONE example. There is nothing special about the graphics in this game. Outside of the AA, it uses 20 year old technologies, horrible looking flat textured environment details and God awful lighting technology (hell, Far Cry 1, which is now 20 years old had insanely better technology and graphics overall, not to mention an INFINITELY better lighting technology AND runs a helluva lot better).

https://forum.scssoft.com/viewtopic.php?f=41&t=298541

The Prism engine was and always has been utter and complete garbage.
Stop fanboying. THEY LITERALLY SAID THEMSELVES THAT IT IS GARBAGE AND THEY'RE LOOKING INTO FIXING IT.
Jesus Christ, I hate fanboys. Reported for derailing and off-topic.
Stay on topic, or get banned.
If you have no solutions to fixing my VR ISSUE WHICH IS THE ISSUE, I will keep reporting you.

I QUOTE FROM DISCUSSION RULES https://help.steampowered.com/en/faqs/view/6862-8119-C23E-EA7B :

Be constructive and avoid off-topic content
...discussion threads all have their own purpose & topic. Make sure that contributions are relevant and constructive.

Examples of off-topic content include:
Derailing a discussion or topic
Bumping threads

The topic here is FIXING A VR ISSUE.
The ISSUE BEING THAT IT USED TO WORK, UNTIL SCS REMOVED THE VERSIONS THAT WORKED, and is an ISSUE THAT SEVERAL HAS STATED RECENTLY.
Not for you to fanboy and protect an engine that everyone knows is garbage and derailing with your hardon for the game.
♥♥♥♥, I hate kids so much.
Blocking and ignore and reporting all replies, except the first.

[Wolfgang]

And you should know that expecting great VR performance from an engine that isn't made for VR is not something to be had. That is like expecting your shampoo to be a conditioner even though it was nowhere advertised.
Again, raise your points with VR on the SCS Forum and maybe the sole dev who is doing this in their free time manages to do something.

Btw. still waiting for an official source on your claim #3.

[Erlou]

Are you sure issues are not on your end? I play in vr as well
Quest 3,4090,9800x3d and 64gb of ram.
And game runs smooth without any issues, i also have dedicated router for it AXE75 6ghz. I didn't notice any stuttering lately, pretty much it's running way better than before. Weird, pretty much everyone have different expierience in vr
P.S do you have openxr toolkit by any chance? And turbo mode enabled?

[AtlasRedux]

Originally posted by Erlou:

Are you sure issues are not on your end? I play in vr as well
Quest 3,4090,9800x3d and 64gb of ram.
And game runs smooth without any issues, i also have dedicated router for it AXE75 6ghz. I didn't notice any stuttering lately, pretty much it's running way better than before. Weird, pretty much everyone have different expierience in vr :stop:
P.S do you have openxr toolkit by any chance? And turbo mode enabled?

Again, several others have the exact same issue. I did the mistake and updated the game despite knowing there are issues with the latest versions, thinking I could always go back to the previous version anyways.
But of course... they've removed the older versions. So I'm stuck with the broken ones that's left now.
No, I have no toolkits or turbo mode. I run everything vanilla.

EDIT: I also literally reinstalled Windows only 2 days ago, since I had so many different dev tools scattered around on my C I had lost track :P Better stick to Anaconda in the future, way too sloppy on my environments.
Changed nothing. Exact same issue.

And AGAIN, this is the only game I have the issue with, and it only started after I updated a few days ago and overwrote the old version that worked.

[HEAVYHITTER451]

lol try it in the rain in vr game just rubber bands every few seconds

[Kiraiya]

Originally posted by HEAVYHITTER451:

lol try it in the rain in vr game just rubber bands every few seconds

Yes, exactly, however, looking at a performance graph indicates it is not "Lag", as the frametime/fps doesn't seem to incrase/decrease. It happens on dirt tracks too.