I am trying to wrap my brain around this however, I am not sure where to start.
I created my meshes in Blender and import them into Unity. They look great when I place the color texture on them, however, when I place a normal map (using Unity) on the mesh it changed the lighting on the entire mesh.
For example: I have 5 seperate sections of sidewalk with a cement texture on them, when I place a bump diffuse (then apply the normal map texture) on the material (in Unity), some of the 5 sections of sidewalk turn really dark, however, some of the sections look great.
I have checked the normals. THey are correct (the color textures look great)
Like I said, it is only when I apply the bump diffuse (normal map) and doesn't seem to happen to all of my meshes. Any suggestions?