Make sure you are importing/calculating the normals properly. It looks like it's trying to put smooth normals on everything, where that's not really what you want at all.
In the Mesh Importer dialogue, there is a sub-heading with 'Normals/Tangents'. Play around with the settings in there, and see if that solves your problem.
Otherwise, make sure that you are exporting your normals properly from Cinema4D.
answered Oct 03 '11 at 12:53 PM
Can you export as collada??? I use blender and I allways export as collada file and everything is same in Unity.
answered Oct 03 '11 at 12:39 PM