Implicit Modeling with Procedural Techniques

Implicit modeling eases the design and animation of complex objects; however, it does not solve the problem completely for extremely complex surface design problems and for modeling volumetric phenomena. Procedural techniques are another growing solution to this problem because of their exibility, parametric control, and abstraction of speciication. This paper discusses how to combine existing procedural mod-eling techniques with implicit modeling to provide a solution to the problem of modeling complex surfaces and volumetric clouds. We demonstrate the usefulness of combining volumetric procedural models with implicit surfaces for modeling volumetric clouds. We also show the advantage of using procedural genetic programming techniques to mate implicit surfaces. These combinations of techniques produce extensible, exible, and powerful tools for modeling.