Puzzled by black spots on specific meshes

Unity Engine
1

I’m having several Enlighten issues in a project, mainly regarding meshes with small surfaces. Black spots mostly occur on the faces in the X-axis.

I figured the meshes were too high poly (~12k) so I split them up in parts, but to no avail. I’m baking at 40 texels p/u, non-directional with a max atlas size of 1024px.

1337×630 273 KB

1040×496 256 KB

Custom lightmap parameters assigned to these objects:

Could anyone shed some light on this issue (no pun intended)

2

How are your UVs? Looks similar to a problem I had. You may want to try generating the lightmap UVs for those objects. I believe that setting is in the Importer.

3

I’d be way too time consuming to create UV’s, so I’m definitely having the lightmap UV’s generated by Unity.