Computer Graphics: The geometry of the shape must be defined by implicit functions. You must use

in the function scr ipt at least one set-theoretic intersection, one union and one

difference operations implemented using min / max functions. Using symbols of

these operations ( | and & ) is not allowed.

The geometry of the shape must be created using at least one ellipsoid,

cylinder, cone, box, and blobby object.

A 3D texture defined by an explicit displacement function has to be applied to

the shape.

The color of the shape must vary across the shape’s surface and be defined by

parametric functions.