The wall is made of blocks of identical wall models with the same UVs. How to get rid of these seams on the lightmap?

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How I made this scene with this models:

  1. I made 3D model of the wall element in Blender.
  2. Import the wall element in Unity and generate UVs in FBX settings.
  3. I made walls from the wall element in the Scene and marked all wall elemets as Contribute GI.
  4. Next I baked lightMap and get this seams.

enter image description here

  • \$\begingroup\$ Can you give us a Minimal Complete Verifiable Example? What exact steps would a user need to follow to make a mesh and a scene that exhibits this problem? \$\endgroup\$
    – DMGregory
    Feb 27 at 17:03
  • \$\begingroup\$ @DMGregory I added step info as you asked. \$\endgroup\$ Feb 27 at 17:53
  • \$\begingroup\$ Images should be embedded, not linked externally, and you should include the steps of how to create a model that exhibits this problem. Do not assume that it is universal to any model made in Blender. \$\endgroup\$
    – DMGregory
    Feb 27 at 18:00


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