Similar UV shells look different after AO baking

[Danil32437582gbmk]

Hello everyone! 

I am modelling a guitar in Maya. There are 6 strings of different width, but the meshes are similar, and the UV shells are similar as well. The UV-shells are located in the lower right corner of the UV map. No overlapping, no invereted faces/normals.

The issue: after the maps baking in Substance Painter the strings look quite different. On the screenshot below: two left ones are quite ok, I guess, but others seem to be of darker gray. 

I've been told that something is wrong with AO, but I have no idea what's actually wrong, since:

• the UV-shells are not overlapped,
• the meshes of strings have no N-gons or tris,
• there are no inverted faces/vertices.

So pretty much the meshes and shells are very similar, but for some reason the final result looks different.

I'd really appreciate your help! Thanks!   

[Cyril Dellenbach]

Hi @Danil32437582gbmk,

Thanks for the details.

Could you share a screenshot from the entire UV map? My first guess is that the UV shells are too small for a clean baking. This could result with artifacts such as the one you're facing.

You can also share with me directly the 3D model, if you want me to take a closer look. You can send it to cdellenbach@adobe.com

Best regards,

[Danil32437582gbmk]

Hello, @Cyril Dellenbach! Thanks for the reply! 

It seems that your guess on the model size is accurate: I totally forgot to scale it properly.

I've sent yout the file, thank you so much for that option! Would be cool to get your feedback!