By John E. Wilson Most popular parametric 3D solid modelers are
great for creating models that can be readily modified to meet
changing design criteria, but they are not as good at
constructing the freeform shapes commonly found on consumer
products and automobile bodies. Product designers often use
other tools to fill the gap and Rhinoceros, from Robert McNeel &
Associates, is one of the most versatile of these. Rhino has
been used to successfully design objects ranging from children's
pull toys to ocean going yachts. The curving organic shapes that
are now commonly used in both exterior and interior building
designs are also suitable subjects for Rhino models. Rhino can
create both solid and surface models, but unlike many programs,
these models are not different object types. As a result, you
can use typical solid modeling techniques, such as a Boolean
difference operation, in creating surfaces; and you can use
typical surface modeling techniques, such as a two-rail sweep
with multiple profiles, in creatin