An assortment of CAD systems that are geared more
towards artificial and creative, rather than technical,
applications is also available. In these, less emphasis is placed
on the adherence to basic geometrical forms in generating 3D
objects and more on a preferably free creation and the rendering
of objects and backgrounds.
Departing from this are also CAD systems which generate
3D sketches or 3D solids through the aid of programming. In
this, a code must first be generated that can subsequently be
used with the aid of a complier to create 3D volume bodies.
This procedure deviates strongly from all other CAD systems
regarding operation since the operator does not generate the
construction by means of graphical input using a mouse along
with the input of alphanumerical values and parameters but
rather through the generation of a code.