I’m trying to follow on of the tutorials here in modelling a face. During the process of creating vertex faces (as opposed to human faces) I ended up with a couple of triangles.
a) I’ve read somewhere that triangles are a bad thing. Why?
b) Once I have triangles, how do I convert them to oblongs? It sounds simple but every knife, CTRL-R, subdivide I try seems to create far more vertices than I want and to create more triangles along the way.