After searching the Web I found TGS
(Template Graphics Systems, Inc.), then VSG
(Visualization Science Group), now FEI
(since Aug, 2012)
TGS 3D Master Suite, TGS OpenGL (v1.0.3) and TGS OpenInventor were also Third-Party applications in the package "Ultra Pack Volume 2, CD-ROM #6". But you can't use it without a license.