Trimsheet 45 degree angle issue (AO seams?)

CrazyMeansCreative · May 19 2024

Hi!

I've been trying to use trimsheet to texture some of the parts of this mesh. Precisely, I've try to use Olsen Morten techniques to create trimsheet with a 45 degree angle but no matter how I tweak it I'm still having trouble with the dark seems... (it gets worst when having AO on top of it...)

Maybe it's the way I made my trim? (I made the basic shape in designer and textured it in painter). In designer I used a plugin to get the 45 agle and applied edge wear on top of it after). I use Maya for the trim placements.

I'll add that in the document of Olsen they seems to add some kind of padding to the trim uv but how could you do that?

In maya: All of the trim are snapped to the edge.

The only I've seen to ``fix`` the issue is by scalling down my uv like that...

Any idea on fixing it?

Thanks in advance

edit: adding the ao and normal maps! The mesh mapped used the 3 and 7 trim from the top!

Image: https://cdn.discordapp.com/attachments/1230253542577668106/1242294401158611005/image.png?ex=664d5051&is=664bfed1&hm=884567e12c19f4d2d67af84a68ca9a48c55e325194264fd4535f7a1586387872&

Image: https://cdn.discordapp.com/attachments/1230253542577668106/1242294596357328939/image.png?ex=664d5080&is=664bff00&hm=af49d73e8fe56211446ab087267d876ba2346ae9d65b25ee1a37933c954a2b7b&

(ignore the black border around it. It's a screenshot)

PolyHertz · May 20 2024

The goal is for each normal map pixel along the joining edges to match each other. For this reason you don't want much detail along the edge as it'll make it more difficult (or impossible) to get perfect normal map continuity between the two sides.

Fabi_G · May 20 2024

Hi! What does the AO map look like? If used on edges, you wouldn't want AO on the bevels/ trims affecting each other.

Klunk · May 20 2024

Any idea on fixing it?

I don't mean to be facetious but it would be nice to know what I was supposed to be looking at...

ZacD · May 20 2024

Try to scale your UVs vertically a few pixels so they are in the middle of that 45 degree bevel section of the texture.

CrazyMeansCreative · May 20 2024

Klunk said:

Any idea on fixing it?
I don't mean to be facetious but it would be nice to know what I was supposed to be looking at...

No worries! Indeed there was an imagine missing X) I edited my post but here is the problem I have... :S

ZacD · May 20 2024

How are you getting the final image/render? I have tried look at the normal view mode if it's UE?

CrazyMeansCreative · May 21 2024

Fabi_G said:

Hi! What does the AO map look like? If used on edges, you wouldn't want AO on the bevels/ trims affecting each other.

I've edited my post and added the normal and AO from designer.

CrazyMeansCreative · May 21 2024

ZacD said:

How are you getting the final image/render? I have tried look at the normal view mode if it's UE?

It's a screenshot from the view in Marmoset actually :O

CrazyMeansCreative · May 21 2024

PolyHertz said:

The goal is for each normal map pixel along the joining edges to match each other. For this reason you don't want much detail along the edge as it'll make it more difficult (or impossible) to get perfect normal map continuity between the two sides.

The issue is probably indeed because of the damages. I'll do a test maybe without the edges damages but I have a feeling it's caused by to much AO... ZacD said:

Try to scale your UVs vertically a few pixels so they are in the middle of that 45 degree bevel section of the texture.

It's a good point. I didn't want to do it to much as I didn't want any TD issue but I'm probably going to scale it as much as I can if the issue isn't fixed...

Fabi_G · May 21 2024

Hi! looking at the screenshot of the AO map, it seems that adjacent trims affect each other. This might work in certain situations, but when used on edges, I would prevent AO from adjacent strips. To do this one can use Bake Groups (Toolbag)/Match by Name (Painter) or bake exploded.

Trimsheet 45 degree angle issue (AO seams?)

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