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The shading algorithm presented here is exploratory, and we expect
many improvements are possible. The most interesting open ended
question in automatic technical illustrations is how illustration
rules may change or evolve when illustrating a scene instead of single
objects, as well as the practical issues involved in viewing and
interacting with 3D technical illustrations. It may also be possible
to automate other application-specific illustration forms, such as
medical illustration.
The model we have presented is tailored to imitate colored technical
drawings. Once the global parameters of the model are set, the
technique is automatic and can be used in place of traditional
illumination models. The model can be approximated by interactive
graphics techniques, and should be useful in any application where
communicating shape and function is paramount.
Bruce or Amy Gooch
4/21/1998