Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5894308 *Apr 30, 1996Apr 13, 1999Silicon Graphics, Inc.Interactively reducing polygon count in three-dimensional graphic objectsUS6061067 *Jul 31, 1997May 9, 2000Autodesk, Inc.Applying modifiers to objects based on the types of the objectsUS6243093 *Sep 14, 1998Jun 5, 2001Microsoft CorporationMethods, apparatus and data structu