investigating Monocle mark issue

[Shmal]

After latest patch, the yellow sight mark in the monocle placed to the left of the center!

I use VR helmet Pimax 8K, and my friend has the same issue in the Pimax Crystal Super.

Here is how it looks:

 

[muffler]

Do you use custom IPD settings?

 

16 минут назад, Shmal сказал:

After latest patch, the yellow sight mark in the monocle placed to the left of the center!

I use VR helmet Pimax 8K, and my friend has the same issue in the Pimax Crystal Super.

Here is how it looks:

 

 

Edited October 26 by muffler

[Lyrode]

I can confirm the same problem.

Pimax Crystal Light, Force IPD setting, 55

18分钟前，muffler说：

Do you use custom IPD settings?

Basically  a must for Pimax headset. Without Force IPD everything looks smaller than in real life.

[Shmal]

Yes, I have tried to set IPD by default and mark returned to center!

But why this issue revealed after latest patch exactly?

What are we going to do with IPD settings further?

It has to work! - question to ED

[draconus]

18 hours ago, Lyrode said:

IPD setting, 55

I doubt monocle on helmet was catered for such low value IRL.

[Lyrode]

4小时前，draconus说：

doubt monocle on helmet was catered for such low value IRL.

Probably not since it's a bit small for adult.

I have to use this force Ipd because my headset display everything 80% as big by default.

[BIGNEWY]

The problem here is the yellow sight circle is fixed to a point on infinity for the sight, with a combination of high res in VR and unusual IPD settings it is going to create a problem and I do not think there is a solution for it. 

 

[Dave317]

It was fine pre patch so there must be a solution for it. 

[Shmal]

Yes, I swear, it was just in the center of the metal ring before the patch!

[BIGNEWY]

1 minute ago, Shmal said:

Yes, I swear, it was just in the center of the metal ring before the patch!

did you change your IPD ?

[Shmal]

Of course not! I was wondering after patch why yellow mark drifted while I didn't touch anything in my settings!

 

[lj0076]

On 10/27/2025 at 4:34 PM, BIGNEWY said:

The problem here is the yellow sight circle is fixed to a point on infinity for the sight, with a combination of high res in VR and unusual IPD settings it is going to create a problem and I do not think there is a solution for it. 

 

I disagree with you, it's not true.
Before the patch it worked without any problems and it didn't matter what IPD value I set.
You did something different with it, although the problem with the visor in VR was solved, this stopped working. Currently it doesn't matter which eye the monocle is set to or what IPD value I set.

Edited Monday at 05:40 AM by lj0076

[YoYo]

On the Quest, everything is fine. Interestingly, I have upscaling at around 6000x3000 pixels and everything is fine. So, as I understand it, the problem only affects Pimax users, and some of them at that. What IPD settings do you have but in settings of DCS?

[Lyrode]

9小时前，YoYo说：

On the Quest, everything is fine. Interestingly, I have upscaling at around 6000x3000 pixels and everything is fine. So, as I understand it, the problem only affects Pimax users, and some of them at that. What IPD settings do you have but in settings of DCS?

I have the same issue.

Pimax Crystal Light

Hardware IPD: 66

In-Game force IPD: 55

Without using custom IPD, the world would look 20% smaller than in real life.

However the current issue is a result of proper ipd scaling after update. I can see the monocycle is move to the right about 5mm (or my right eye is moved to the left by 5mm).

[YoYo]

34 minutes ago, Lyrode said:

I have the same issue.

Pimax Crystal Light

Hardware IPD: 66

In-Game force IPD: 55

Without using custom IPD, the world would look 20% smaller than in real life.

However the current issue is a result of proper ipd scaling after update. I can see the monocycle is move to the right about 5mm (or my right eye is moved to the left by 5mm).

It doesn't look like it could cause too many problems. I agree that the default DCS has a too small world. I also have it set to a higher scale (IPD 61 in-game). Pimaxes have a larger FOV (although apparently with Light it is also 110 deg., am I correct?), so it's possible there's a problem with these settings. However, since it was fine before and now it's not, you have to ask yourself if the DCS and MiG-29 updates changed anything, or if a software update from Pimax (as that's also possible).

I have this:

• Hardware IPD: 64
• In-Game force IPD: 61

and everything is in place, but as I wrote, it's Quest:

Do you have Apache? If so, does it display IHADSS correctly?

[Lyrode]

19小时前，YoYo说：

Do you have Apache? If so, does it display IHADSS correctly?

I guess this could happen to pimax more than other vr headsets. They probably extend their fov by making the overall image smaller. Because in cyberpunk 2077 vr mod, and some steam games I also find the world smaller, that I need to use scale.

Regarding the Apache, I checked the IHADSS, and it actually worked fine, perfectly centered.

Besides, HMD on black shark 3, is also perfectly centered, though this one doesn't have model yet.

HMD of F-16 also has no issue.

The problem is on Mig-29 only.

[Lyrode]

19小时前，YoYo说：

if the DCS and MiG-29 updates changed anything, or if a software update from Pimax (as that's also possible).

I have this:

• Hardware IPD: 64
• In-Game force IPD: 61

and everything is in place, but as I wrote, it's Quest

On your image with 61 ingame ipd, the monocycle is also a bit to the right, my setting is 55 so it's even further.

The update log said it fixed the issue where hmd wass not affected by ipd setting. No pimax update in the meantime.

So the hmd of mig-29 in real life can't be adjusted, the ingame ipd setting moving the eye position relative to the monocycle makes sense now, but it caused this issue for users who need to change world scale.

Since ED advertised Pimax headsets I think they make a work-around for this. Like a proper FOV or World scale setting, instead of Force IPD.

[YoYo]

On 11/4/2025 at 2:07 PM, Lyrode said:

On your image with 61 ingame ipd, the monocycle is also a bit to the right,

This is just an impression, as the screen is from one eye. In reality, in VR, I'm perfectly centered.

But if everything is fine in Apache in VR, then there is actually something here for developers to check.

[draconus]

35 minutes ago, YoYo said:

This is just an impression, as the screen is from one eye. In reality, in VR, I'm perfectly centered.

It doesn't work like that. The screeshot is made from one eye mirror - it's the same what you see in your headset.

[SAM77]

Sorry for the OT but I noticed that the monocle in the pic is very detailed. Is this because of VR or a higher resolution? I run at 1080p and the sight is blurred for me.

[draconus]

1 hour ago, SAM77 said:

Sorry for the OT but I noticed that the monocle in the pic is very detailed. Is this because of VR or a higher resolution? I run at 1080p and the sight is blurred for me.

It's VR version. There is a wishlist thread about that because it is not realistic.

[YoYo]

3 hours ago, draconus said:

It doesn't work like that. The screeshot is made from one eye mirror - it's the same what you see in your headset.

Of course not. The game (or VR app) renders two separate images – one for the left eye, the other for the right eye – from a slightly different perspective or centering in VR. So you can have a shift in the image, and in VR it will be in the middle. The image is shifted, so each eye sees something slightly different, which gives us a 3D effect. I don't take screenshots with DCS from desktop either, but with the OpenXR Toolkit.

It's the same picture. Each eye has something different, which causes you to see, for example, this snake in VR (the differences are quite visible) - each image shows something different and you will get something different after superimposing these two images in VR. Btw. This is off-topic, so please don't continue this here. You can read about the 3D effect, for example here: https://healthymind.fr/en/virtual-reality-headset-how-does-it-work/ and open the new one if you want.

On 11/4/2025 at 2:07 PM, Lyrode said:

On your image with 61 ingame ipd, the monocycle is also a bit to the right....

I checked again now. Indeed, because the image is generated only with the right eye (like in Apache), the crosshair itself is not perfectly centered but closer to the left side. Overall, the impression is okay, it doesn't bother me, but actually, in this case, maybe a higher IPD gives a bigger shift here.

2 hours ago, SAM77 said:

Sorry for the OT but I noticed that the monocle in the pic is very detailed. Is this because of VR or a higher resolution? I run at 1080p and the sight is blurred for me.

5440 x 2784 pxt. For VR to generate a good image, it must have a higher resolution. This is very noticeable in 2D when taking screenshots.

Edited 3 hours ago by YoYo