Bleeding/Seams on AO Bake The undershadow of the ruffle here is showing through the top. I get a lot of these black lines that show up. 





Is there anything I can do to fix this when baking an AO?
(the unwrap on the left is.. ruffles at the top and shirt with shadows below it)
Looks like you have intersecting or non-manifold geometry and the problem are aliased edges. There is no way to bake the AO with anti-aliased intersecting edges, that is not yet supported.

There are 3 option:


get rid of the intersections (or non-manifold sections)
bake a much much higher resolution and then downscale the texture
go over those edges with paintbrush and fix them manually