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I made a simple box in blender and imported it to unity. Now I'm facing with this weird lighting problem:

Unity Blender Box Blender Box

I've been messing around with normals, duplicated vertex, lots of things, even lightning properties but still I'm not getting any results at all. Why does this happen and how can I solve it?

Source blend file: https://drive.google.com/open?id=1Ze1JBRFBvhnnY-w36U2KDe7Q2zcfXsmf

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  • \$\begingroup\$ Looks like there's two disjointed meshes (a cube and a cage), so it shows on the shadow. Should it look different? \$\endgroup\$ – Vlad Dec 3 at 21:33
  • \$\begingroup\$ yes, I'm gonna edit the question to show you the blender model \$\endgroup\$ – André Dec 3 at 22:48
  • \$\begingroup\$ The right face doesn't have that cyan highlight. It wasn't selected, or it "fell through" the cage? Can you share the source blender file? \$\endgroup\$ – Vlad Dec 4 at 8:44
  • \$\begingroup\$ I think it's about smoothing I don't really know, I'll share it when I get home. \$\endgroup\$ – André Dec 4 at 12:50
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This isn't a problem with the mesh, it's a problem with your Unity light settings. Adjust the settings "Bias" and "Normal bias" on your light until the shadow seams go away.

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