Mirror UV seams bake

Asim7

When I bake a normal map in Substance Painter, I get this seam in the middle.

I am not sure why, I have tried different things to fix it such as

Deleting half the model and only baking on one half

Moving the mirror'ed UV's 1 UDIM away

I haven't been able to fix it, and I'm not sure why i'm even getting it. I am pretty sure i've done quite a few models this way without any problems.

Also why only the seam on the pillow, and not the rest of the model considering the entire thing is mirror'ed and overlaying UV's?

Thanks for any help you can provide :)

Asim7

Ugh, I spent all day trying to fix this yesterday only to figure it out 5min after making this post...

Anyway, the problem was the high poly itself, for some reason even though it was mirror'ed it had made a small seam in the center of the pillow. Not sure why, but the way it was mirror while going down the Y axis made it look like a hard edge.

I vertex relaxed the center of the high poly and re-exported.

I don't think I can delete this post? But it's been fixed :)

Eric Chadwick

Thanks for posting your solution!

This is really the best way to complete a topic, rather than deleting it.

By adding your solution, you end up helping the forum community. Others searching for fixes will find your topic, and get a potential solution to their own problem.

Kudos!