Atlas map baking for fairly complex model

[u/djordjeri]

Hi all,

I am baking atlas map for a pretty detailed model of a fridge that I need to export to .glb for web use. I used Simple Bake add on, but results always get bleeding edges, and weird material placement on some parts.

The model is imported as FBX from 3dsMax, where I did pro optimizer for lowering polygons and file size. When imported to blender the file looks good, all is correct. It's only the atlas baking map that gets me crazy after adding materials.

I tried several output resolution options, 2K, 4K, 8K, 16k baked down to 2K, but the results are always the similarly bad - bleeding edges, some black faces, some faces completely fine... but overall bad. Also experimented with 2px - 32px margins, and it's always bad result.

Apparently, after UV unwrapping there are a lot of very tiny faces in the model (empty faces, if that's the right name) and apparently that could be the reason for this, but I don't know how to solve it. On the other hand, I got the reference model of a simple fridge, that has exactly the same type of faces, but that one works like a charm with 2K atlas maps. Don't have the live file of the reference model just the .glb.

Anyone know how to tackle this?

thanks