Folks, I created some planes and moved and messed them about to fill some gaps I had in my model. I comformed my normals to get all the normals around the right way, and then I averaged my vectex normals to get all the gap- filling planes looking all the same. The problem is, now because the vertex normals have changed the way the shading looks, when I render the frame, it looks all round rather then the sharp edge I want. How do I go from the top image to the bottom image? (I've highlighted what I mean)