Constructive Texturing Plug-in to PointShop3D by C. Schlick and P. Reuter

Function-based Node of Virtual Reality Modelling Language by A. Sourin

HyperFun project and VRML language by J. Zara

|Implicit Surface Polygonizer by V. Skala and M. Cermak

Interactive System for Generating and Modeling Implicit Functions by V. Skala and K. Uhlir