A fast algorithm for generating smooth molecular dot surface representations.

The smooth molecular surface originally described by Richards and later implemented by Connolly in his MS program has become an important visualization technique in the field of molecular modeling. We describe here a new algorithm, called USURF, which approximates the MS dot surface, but with a twofold to sixfold enhancement of speed. The algorithm has been incorporated into our interactive modeling system, Mosaic, and is also available as a stand-alone program.