Problem with lighting (431663)

Please view the youtube link. Per-pixel lighting seems to show up only when the light is facing the walls, and weakens when facing away from the walls. Any idea how to fix this?

Ok, I figured it out. In my level mesh’s import settings, I set Normals from “Import” to “Calculate” and it worked properly now.

Apparently Blender’s normals calculations doesn’t play well with Unity’s lighting.