How do I specify per-vertex normals?

[JoryRFerrell]

How do I specify per-vertex normals? Do I simply define a normal before each and every single vert, like I would for a set of faces?

[tonyo_au]

Yes - see glnormal3f

[Aleksandar]

You are probably talking about legacy OpenGL. Well, it is a state-machine, and everything set before calling glVertex*() is used for that vertex. If every vertex has a different normal, then yes, you need to call glNormal*() before every glVertex*(). If several verices share same normal, then call glNormal*() just once before those vertices.