VR - Vive Pro 2 warping/skewing issue

[Guest deleted@134347]

hello,

 

I'm not sure if this has already been reported. We have a thread in the VR section (see below) about the new HMD from HTC the Vive Pro 2.

 

Once the game is loaded the picture in VP2 has:

1) incorrect aspect ratio. It appears horizontally stretched, i.e. imagine a 4:3 picture stretched over 16:9 screen

2) the image gets progressively skewed if one starts to tilt his/her head to the left or right.

 

This is an issue specifically with IL2.  In other simulator games VP2 does not exhibit such a problem.

 

 

 

 

[Guest deleted@134347]

here are the examples of the aspect ratio & skewing issues:

picture (credit to @Sheriff88)

normal:

 

in VP2 (vertically compressed):

 

 

 

When tilting my head to the Right the top left stretches left and bottom right stretches right (skewing):

 

Edited July 12, 2021 by 30speed

[Voyager]

As I understand it, it's an issue that every new VR headset has in Il-2 until the devs patch it. The VP2 just came out right as the devs went on vacation, so it's probably taking a bit longer than usual. 

[Guest deleted@134347]

at this point all we are trying to get is an acknowledgement from the Dev's.

 

 

hi, @Jason_Williams

 

since this topic was moved out from Bugs section (for some odd reason), can your team possibly acknowledge this bug report?

 

Sincerely,

30

[Jason_Williams]

We're aware of it. We can't fix until we have a unit in house. Will take some time. No ETA yet sorry.

 

Jason

[Guest deleted@134347]

@Jason_Williams

 

thank you, sir!

[altsakki]

I am having the same problem on my HP Reverb G2. Fresh install with IL-2. Everything looks warped and little off on my screen. It's like the game camera render IPD setting is very low, like half what it should be.

 

The issue is only on IL-2 - all other VR games look normal.

[Drum]

@altsakki check this out for your problem... 

 

[=STP=Darrylx444]

Thank you for acknowledging this @Jason_Williams.   I have the same problem as OP on my Vive Pro 2 also.

In the spirit of trying to help, I may have some useful info for your team:

 

The rendered FOV aspect ratio for the VP2 is 116.52 horiz / 96.49 vert (in degrees, see source below). So if that's the only problem, then I assume the current (wrong) ratio used by IL-2 could just be adjusted to suit in a quick hot-patch, at least until an HMD can be found by the team to fully verify/test later on.

 

Here is a very good listing of various HMD rendered FOVs: https://risa2000.github.io/hmdgdb/

The data is derived from a software test that retrieves the rendered values only, and thus is not subjective to user-reporting errors or individual facial variations.

 

It is a popular & free app, that anyone can use. With some release-day testing by the VR community, maybe this method could help the IL-2 devs avoid having to procure every new HMD that comes out? I don't know, but thought it worth mentioning here. Thanks again.

[nobuttons]

Interesting, I have a VP2 and I don't have this issue at all...

[dburne]

4 minutes ago, nobuttons said:

Interesting, I have a VP2 and I don't have this issue at all...

 

Yeah can't say I have seen that issue either.

[=STP=Darrylx444]

@nobuttons@dburneThat's odd indeed, although I'm glad you are not bothered by it. The VR experience can vary by person, I guess. The current warping is fairly bearable for me after some practice, more so than for several other folks who can't abide it. But definitely it's always quite noticeable to me in all scenarios. And solely in IL-2.

 

To make it most obvious, go into the rear gunner position of an A20, lock your eyes on the vertical stabilizer, tilt your head left-ear-down all the way towards your left shoulder, then vice-versa on the right. The straight vertical stabilizer bends into a curve, like a puppy's tail slowly wagging back and forth as you move.

 

Another test: Look at the full-screen mission map and watch how it distorts into a tilting parallelogram (rhombus?) as you do the same movement above. Grid squares become flexible tilting diamonds.

 

The vertical compression is more subtle, but related to this warping issue I believe.

[Voyager]

I can see it if I look for it, but, my prescription is strong enough that I'm always looking through some degree of distortion, so I apparently just automatically compensate for it. 

 

It is there, but the brain is able to filter it out. 

[SCG_Fenris_Wolf]

13 hours ago, dburne said:

 

Yeah can't say I have seen that issue either.

We talked about this before, you do have the issue but don't see it, because of your condition. You're sending wrong signals if you post stuff like this.

 

I also sharply doubt nobuttons would not have it - everyone has as the new headset has not been in the Devs' offices yet. Nobuttons probably just hasn't noticed it yet, because of lack of tilting the head or due to other reasons.

 

 

It's a touchy subject by now as IL-2 as a result was incompatible for 6 weeks by now. And if you guys post stuff like that, it's not helping at all, as @=STP=Darrylx444 indicated.

 

It has many factors. If you have a widescreen or ultrawidescreen monitor, the game defaults to that FOV like 21:9 in my case and the effect is much stronger. If you have a classical monitor, for example the average 4K with 16:9, the effect is more subtle. 

 

Edited July 15, 2021 by SCG_Fenris_Wolf

[dburne]

1 hour ago, SCG_Fenris_Wolf said:

We talked about this before, you do have the issue but don't see it, because of your condition. You're sending wrong signals if you post stuff like this.

 

I also sharply doubt nobuttons would not have it - everyone has as the new headset has not been in the Devs' offices yet. Nobuttons probably just hasn't noticed it yet, because of lack of tilting the head or due to other reasons.

 

 

It's a touchy subject by now as IL-2 as a result was incompatible for 6 weeks by now. And if you guys post stuff like that, it's not helping at all, as @=STP=Darrylx444 indicated.

 

It has many factors. If you have a widescreen or ultrawidescreen monitor, the game defaults to that FOV like 21:9 in my case and the effect is much stronger. If you have a classical monitor, for example the average 4K with 16:9, the effect is more subtle. 

 

 

OK I will stop posting my experience with the Vive Pro 2.

[nobuttons]

3 hours ago, SCG_Fenris_Wolf said:

I also sharply doubt nobuttons would not have it - everyone has as the new headset has not been in the Devs' offices yet. Nobuttons probably just hasn't noticed it yet, because of lack of tilting the head or due to other reasons.

[...]

It has many factors. If you have a widescreen or ultrawidescreen monitor, the game defaults to that FOV like 21:9 in my case and the effect is much stronger. If you have a classical monitor, for example the average 4K with 16:9, the effect is more subtle. 

I'm fascinated and will def check it out to see if I do have it. 

 

I did notice some distortion early on, but my VP2 is early and I assumed it was wide FOV distortion at the edges of my view and have gotten used to it. Maybe it is *this*?
I absolutely did not notice any aspect ratio squashing though...

Moving my PC into a cabinet right now or else I would have tested yesterday, but should be able to double check tonite...

[SCG_Fenris_Wolf]

Hehe no guys it's not a question, it's also not distortion, VP2 is distortion-free (fortunately).

 

I checked HTC store for the business version, it seems in Russia it wasn't for sale except the consumer version through third party channels.  

[=STP=Darrylx444]

11 hours ago, SCG_Fenris_Wolf said:

It has many factors. If you have a widescreen or ultrawidescreen monitor, the game defaults to that FOV like 21:9 in my case and the effect is much stronger. If you have a classical monitor, for example the average 4K with 16:9, the effect is more subtle.

 

Ah, I didn't realize that IL-2 uses the user's flat-screen monitor aspect ratio as the default VR HMD aspect ratio for new HMD models. That would seem to be a very weird design decision, if true. Did you test on various monitors to confirm this?

 

But if indeed that is what happens, then maybe that could be used to work around the current warping issue. In Nvidia Control Panel / Change Resolution / Customize / Enable Resolutions / Create perhaps? I am speculating quite a bit, of course.

[nobuttons]

Hecc... I went to look for it and now I can't unsee it.

 

It's there.

It's pronounced.

It's absolutely related to head tilt.

 

And now I have to pull my Pimax out of the box (which I wanted to anyways for FOV) because once seen it's too distracting!!!

 

I also can confirm a slight amount of vertical compression (however it doesn't seem as bad that the screen shot)

[SCG_Fenris_Wolf]

9 hours ago, =STP=Darrylx444 said:

 

Ah, I didn't realize that IL-2 uses the user's flat-screen monitor aspect ratio as the default VR HMD aspect ratio for new HMD models. That would seem to be a very weird design decision, if true. Did you test on various monitors to confirm this?

 

But if indeed that is what happens, then maybe that could be used to work around the current warping issue. In Nvidia Control Panel / Change Resolution / Customize / Enable Resolutions / Create perhaps? I am speculating quite a bit, of course.

It certainly looks like it, for me it uses the 102° which is the default.

What does your framecounter show, also 102° or something else?

 

We are sitting in the same boat: Speculating just like you right now, based on the history of IL-2 cooperating with new headsets. All we know for certain is that the aspect ratio is false, and that they always need new headsets locally in the offices, unfortunately.

 

There must be a reason they haven't fixed the VR integration of IL-2 in general yet so they wouldn't need to get the headsets all the time, probably some hardcoded stuff in the engine they cannot change easily. 

 

P.S. I will also try with another monitor, I currently only have a 21:9 and gave my other monitors away as presents. My brother has a 4:3 and a 16:9, I'll pay him a visit in the afternoon. Maybe find a temporary workaround to mitigate the severity of the issue - some hope is back.

Edited July 16, 2021 by SCG_Fenris_Wolf

[SvAF/F16_Goblin]

@SCG_Fenris_Wolf
Just a stupid idea that popped up, what if You create a custom monitor resolution in AMD or Nvidia control panels and use that in VR?
Will that work I wonder if it is as You say and currently it's the monitor aspect that is applied.

 

//

 

Edited July 16, 2021 by SvAF/F16_Goblin

[SCG_Fenris_Wolf]

If it is what is applied. I couldn't check that yet. May have time in around 4hrs

[TCW_Brzi_Joe]

Maybe this program can help you guys, it can force resolution and ratio of game screen: Flawless widescreen

[Guest deleted@134347]

4 minutes ago, TCW_Brzi_Joe said:

Maybe this program can help you guys, it can force resolution and ratio of game screen: Flawless widescreen

 

it needs integration with OpenVR in order to support VR, otherwise it's just for the monitors only.

[=STP=Darrylx444]

Just for fun, I did try changing to a custom resolution (with a different, non-native aspect ratio) via NVCP.

 

But it only affected the monitor, not the VR HMD aspect ratio in IL-2.

 

And my game still reports 45 FPS / 102 FOV * on screen, as mentioned before in a different thread:

* Which, btw I assume is wrong anyway. My old Pimax also reported the wrong FOV number in IL2 compared to reality. And if you watch it in the menu / hangar screen, it oddly goes way, way lower.

Edited July 19, 2021 by =STP=Darrylx444

[=STP=Darrylx444]

No fix in the latest patch, sadly. Still hoping for something soon.

[SCG_Fenris_Wolf]

Yes, it's true, we haven't heard back from the Devs yet. It can't go on like this, IL-2 has to get fixed, we have spent money on this game. Our squadron has lost half a dozen players just to this single issue alone as of today, and we got some 2D monitor players who consider getting into DCS as well now, because some of our core players are directly affected. Just our squad SCG is around 40 people all together.

 

How many months has it been now? 

 

The Devs have all the support available that they'd need, even if they want to get it hardcoded into their own library. There's nothing we couldn't read out, adjust code ourselves if necessary, playtest live with immediate response, and much more assistance offered from this community than I've ever seen in another. Why not use it and where is the ETA? @Jason_Williams@Han

 

[SCG_Redcloud111]

Hey, guys, I also recently commented in another thread that I posted back in June, asking if any movement has begun on this issue now that summer is over:

 

I am still waiting to hear back. I tagged Jason and Han as well.

 

I haven't flown at all since I bought my VP2, which works in all other simulators (and games).

 

[Arrowhead]

On 8/24/2021 at 8:33 AM, SCG_redcloud111 said:

Hey, guys, I also recently commented in another thread that I posted back in June, asking if any movement has begun on this issue now that summer is over:

 

I am still waiting to hear back. I tagged Jason and Han as well.

 

I haven't flown at all since I bought my VP2, which works in all other simulators (and games).

 

War Thunder is the ONLY other game where this issue exists. Does it use the same engine as il2 or something? Anyways, the devs for WT are also being slow to solve this and they have been very active all summer.

[SCG_Redcloud111]

Arrowhead. I do see it in the menu. You are correct. I don't notice it at all, though, in game. I only tested very quickly in tanks VR. But good find! Are you sure this is happening in WT with the VP2? I was in it awhile ago, and I didn’t see any distortion (although I wasn’t really looking for it or overly concerned). I don’t play WT planes (only tanks every now and then). My main problem with WT in VR is that they solve the spotting problem by making every object in the air, no matter the distance, a huge flying blob that only becomes clear when you are close. 

Edited August 30, 2021 by SCG_redcloud111

[Arrowhead]

I'm 100% certain I'm seeing it in WT. Just played some now. If you don't tilt your head, it seems like it could go unnoticeable like in IL2 . But the effect is pretty much identical to IL2 and I believe that the WT engine has its roots in IL2. Try tilting your head and looking for that warping effect. Most notable in the main menu. If you don't have it, then what the heck is going on with my system? lol

[SCG_Fenris_Wolf]

3 hours ago, Arrowhead said:

War Thunder is the ONLY other game where this issue exists. Does it use the same engine as il2 or something? Anyways, the devs for WT are also being slow to solve this and they have been very active all summer.

The underlying problem appears if you don't dock to OpenVR's API properly and don't actively read out the geometry of the headset. You can get all information there, don't drop/reduce anything from the matrices in an ill attempt to look like a performance-boosting smartass, and with a bit of (not so) magic math, get both viewports to render correctly including all the shading.

 

You can either do that, or build your own hardcoded library of headset recognition + geometry, by getting each and every headset purchased, and then individually dial them in each time a new one is released. Then problems appear as soon as IPD settings are further away from center or once new headsets are released. Not an if, but a when.

 

The former is considered a clean, proper integration. The latter is just a hackjob.

[firdimigdi]

 

After some consideration, I believe one thing that can explain this is that it's more likely the game engine is doing some sort of custom implementation of Single Pass Stereo as an optimization and applying corrections that are required for it to be comfortable which are not automatically done AFAIK. I came to this conclusion after reading what the fix that the OpenVR FSR mod did for IL-2 which was described as a fix in general for games that use a single texture for rendering both eyes to.

 

Edited August 30, 2021 by 335th_grFirdimigdi
words

[Arrowhead]

Well, as of this week I'm seeing that the War Thunder devs have fixed the issue. Now, just waiting on IL2 to get it together...

[SCG_Redcloud111]

Oh, have they? Great, I will check. I don't fly War Thunder because they make air targets look like big blobs in the sky (which solves the spotting problem for low resolution head sets but really destroys any sense of realism). But tanks in VR are still a blast.

Edited September 19, 2021 by SCG_redcloud111

[Arrowhead]

11 hours ago, SCG_redcloud111 said:

Oh, have they? Great, I will check. I don't fly War Thunder because they make air targets look like big blobs in the sky (which solves the spotting problem for low resolution head sets but really destroys any sense of realism). But tanks in VR are still a blast.

Actually, a recent update made spotting trickier than it has been in past as well.

[SCG_Redcloud111]

12 hours ago, Arrowhead said:

Actually, a recent update made spotting trickier than it has been in past as well.

Interesting. I will check. If they don't look like big blobs you can spot from across the map, that will be a huge improvement. One thing War Thunder has that Il2 doesn't is big AI bomber formations you can go after in simulation match. But, again, it's War Thunder with maniac pilots and very little teamwork.

[SCG_Redcloud111]

So, I checked and you are correct. The warping is gone, and they seem to have done something with distant objects to make them less visible (which is actually a good thing).I was able to enter a sim match and get a pretty quick kill. I was also able to Necksaver working for the first time. So, WT is now a viable quick and easy fix for some light but fun multiplayer with all the different aircraft. I am quite happy they made these changes. Pretty good for a free game. 

Edited September 20, 2021 by SCG_redcloud111

[SCG_Fenris_Wolf]

We can play it this week. So IL-2 is the only game that remains bugged in this regard.

 

I can't say I'm happy in this regard.

 

My love for what IL-2 was/could be/is when fixed is what keeps me here.

Edited September 22, 2021 by SCG_Fenris_Wolf

[Sotka17]

I have this problem (warping/skewing) using Quest 2 with Virtual Desktop for wireless connection.

 

IL-2 uses SteamVR (OpenVR runtime).

 

I also have a non-Steam version of DCS that uses Oculus runtime.

The warping does not appear in DCS.

 

In Settings in SteamVR there is an option to set OpenVR runtime as default instead of Oculus runtime.

 

I chose that option and warping/skewing appeared in DCS !

 

Then I uninstalled SteamVR and ran my non-Steam DCS with Oculus runtime and warping disappeared !

 

At least in my case the problem is with SteamVR used with Virtual Desktop for wireless connection.