Fractals and Computer Graphics  Appeared in Interface Magazine,
December 1990  Written by Paul Bourke   Computer graphics using
CAD software is typically good at creating representations of
man-made objects using primitives such as lines, rectangles,
polygons, and curves in 2 D or boxes and surfaces in 3D. These
geometric primitives and usual tools for manipulating them
typically prove inadequate when it comes to representing most
objects found in nature such as clouds, trees, veins, waves, and
a clump of mud. There has been considerable interest recently in
chaos theory and fractal geometry as we find that many processes
in the world can be accurately described using that theory. The
computer graphics industry is rapidly incorporating these
techniques to generate stunningly beautiful images as well as
realistic natural looking structures.  In what follows a
description of a few of the more commonly used techniques will
be given along with an example of each. It should be appreciated
that usually the example