CONTROLLED BLENDING OF PROCEDURAL IMPLICIT SURFACES

Implicit surfaces are becoming increasingly popular in geometric modeling. Procedurally defined implicit surfaces, in particular surfaces built around skeletons, provide an intuitive representation for many natural objects, and objects commonly used in geometric modeling. This paper presents several techniques that provide good control over the way different skeletally defined implicit surfaces blend together. Some extensions to these techniques provide a simple and convenient representation for "soft" surfaces of revolution , randomly deformed surfaces, and other interesting shapes that would otherwise be difficult to model.

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