I've had a lot of problems with importing cylinder shaped items from Blender into Unity. At first I thought it was just the normal maps, but then after looking into it, the problems are the normals of the edges/vertices at the top and bottom of the cylinders. It doesn't receive lighting correctly from the scene. I can either add an edge loop to correct the problem, or choose "calculate" normals in the import settings. which is the best approach? Is it acceptable to just have Unity calculate the normals for me? The blue lines are the directions of the normals.