


You create curvature using Beveling or by Subdivision surfaces. The first 3 are parametric modelling techniques - you control limited amount of points to define the surface. sculpting (controlling all surface points of complex shape with brushes).

box-modelling (dividing a primitive into complex shape).spline-modelling (lofting curves into complex shape).poly-modelling (extruding polygons from a primitive into complex shape).We can distinguish these modelling techniques: Sometimes it's not only one way, but multiple ways are used based on how they are fit. There are many ways how to achieve the end-result shape of your object.
