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[vonOben]

Hi

I have some minor display issues on the new Albatros D.I radiator
The mapping is the same on the left and right radiator and the texture is also the same, but they don't display the same in IL-2.

Any ideas what the problem might be and how I can correct it?



Thanks in advance!

Best regards

vonOben

[Lythronax]

I'm very new to modelling so I'm not a fantastic point of reference, but is it a NULL material issue?

[Mission_bug]

Hard to tell what is causing that from the image it might be you have some vertices misaligned so they produce a crease that is casting a shadow or alternatively it might just be that the area is picking something up from your texture, a blemish of sorts.

Trouble is that it is not always obvious from seeing the part in the 3d program that something is wrong, the surfaces can seem perfectly okay until you view the part in game.

If you open the part in gmax then apply the unwrap modifier tool you can see just where the vertices
lie and move them about to see if you can eradicate the problem, remember to collapse the stack so
the changes are are kept.





Or alternatively actually move the vertices on the part itself in the area with the issue just in case something
is crossing another vertices line or maybe a face is slightly angled.

There is also the possibility something is wrong with the smoothing groups.


Wishing you all the very best, Pete.

[vonOben]

Hi guys

Thanks for your replies! 

I'm very new too Gmax, so I haven't used any NULL material or smoothing groups on my radiator. 
I've searched about both, but haven't quite understood it yet. I've also read about to weld vertices.

Mostly confused right now...   

Best regards

vonOben

[Dreamk]

Try and use vertices welding on this part. (Editable Poly/Vertices/Edit Vertices/Weld) - begin with weld threshold = 0.01m

[vonOben]

Hi

Thanks for your help!   

What I've tried so far:

I've checked the mapping with the unwrap modifier tool, but I can't see anything wrong:



I've tested to use Weld, but 0.01m was too rough for the radiator and when I lowered it to 0.005 there was nothing to weld "No weldable vertices within threshold".

I've added Smoothing Groups to the problematic areas like this:



So I have 4 smoothing groups similar to this: One for the left upper side, one for the right upper side, one for the left lower side and one for the right lower side.

But there is still oddities with the game display:



Any ideas what to try next?

Thanks in advance!

Best regards

vonOben

[vonOben]

I forgot to mention that the radiator looks fine in Gmax:

Could it be a NULL material issue, as mentioned earlier by Lythronax?

[vonOben]

My intention was to try to add a "NULL material" to see if that helps, but unfortunately the "3D modeling NULL material tutorial"
https://www.sas1946.com/main/index.php/topic,2707.0.html
is not detailed enough for me to understand it 

So I would be grateful if anyone could help providing more information how to add "NULL material" to a 3D model in Gmax and how to edit the msh file after exporting with the BuggyBuggy exporter.

Thanks in advance for any help!

Best regards

vonOben

[Mission_bug]

Hello again, sorry to say I have not been able to grasp just how the null material thing works either.


I see the principle of what it does but as you the few tutorials I have found have not helped me put theory into practice so I cannot help with that one.


Wishing you all the very best, Pete.

[SAS~Ghost129er]

The whole point of the Null material (and feel free to correct me if I'm wrong) if I remember correctly is to prevent stuff like this from happening:



Basically, if you look carefully at the fuselage, you'll see an odd line/break where I've cut the model in order to have it CF_D0 and Tail_D0 (whatever it's called). Now the Null material is simply an overlaying part of the fuselage in both areas to connect and make them seem like they are the same part as IL-2 for some black magic Engine limitation reason can't make it look like it's still one piece, unlike 3DS Max which renders it fine.


Final result.

[vonOben]

Hello again, sorry to say I have not been able to grasp just how the null material thing works either.

I see the principle of what it does but as you the few tutorials I have found have not helped me put theory into practice so I cannot help with that one.

Thanks Pete, it's a relief to know that I'm not the only one having difficulties to understand how to use NULL material... 

[FAC] Ghost129er:
Ok, do you think the radiator display issues might be a "NULL material" problem then?

It would be great if someone could enlighten me how to use NULL material" on the radiator.

[SAS~Ghost129er]

[FAC] Ghost129er:
Ok, do you think the radiator display issues might be a "NULL material" problem then?

It would be great if someone could enlighten me how to use NULL material" on the radiator.

I don't think it's an issue of Null material (did you use it?). It seems to be from cloning/mirroring the object (have had countless issues like this because of mirroring/symmetry modified in 3ds Max...)...

As for Null material, I was just lucky with this one and this is an old mod. I'll have to practice it again before I can even explain as I don't understand it myself. There is a tut here somewhere but it still doesn't explain it to me.