A METHODOLOGY FOR DIRECT MANIPULATION OF POLYGON MESHES
Date
1988-11-01
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Abstract
While many modelling techniques used in computer graphics produce
polygon meshes, few methods have been reported for modifying such
meshes interactively. This paper describes how to manipulate polygon
meshes directly in a controlled, general, and powerful manner. The
scheme is based on a primitive operation which moves one vertex
without altering the topology of the mesh. Extending this operation
allows the geometry of arbitrary regions to be modified according to
generalized "decay functions" that control the shape. The technique
has been implemented and tested, and examples are given which show
that a rich class of models can be generated. The method has many
desirable properties and compares favourably with other modeling
techniques.
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Computer Science