Dark Boarder around planes (walls, ceiling, floor) in baked lightmap!!

Unity Engine
1

I’ve searched and found multiple topics on dark edges, but the problem images don’t seem to be as pronounced as mine. And I have tried all the fixes proposed in the other articles to no avail. Basically every plane (wall, ceiling, floor) in my scene gets very dark borders baked in to the lightmap. It’s like all the planes have a vignette applied. See the attached unbaked vs. baked screenshot. What am I doing wrong? Here is what I’ve tried:

  1. Edited mesh in blender to increase polygons and smart UV unwrap with large margins between islands.
  2. Turned on "Generate UV’s inside Unity.
  3. Set Lightmap Resolution to 120 and Padding to 12.
  4. Turned off all lightmap compression.

Any thoughts?

5158172--511010--wall_baked.JPG
5158172--511010--wall_baked.JPG830×522 21.1 KB

5158172--511013--wall_unbaked.JPG
5158172--511013--wall_unbaked.JPG860×517 16.5 KB

2

Looks like you enabled Ambient Occlusion in your lightmap settings.

1 Like
3

Please post your settings, and also go to the Lightmap Preview window (Lightmap Settings → Baked Lightmaps → click on a lightmap) and post it here. If you have a newer version of Unity you will also have the UV Overlap mode in the Preview window.