Pattern is a very specific sequence of manuvers in a very specific airspace. The idea is to do everything smooth, at the right angle, and all at the same speed. All of the manuvers occure in the same verticle plane. Manuvers include, immalman, split-S Cuban 8, stall turn, all with or without rolls.
3D is flying beyond the normal flight envelope for an airframe by using excessive thrust and extreme control throws. Manuvers include, hovering, waterfall, torque roll, harriers, rolling harriers, wall.