GHOST 3D PC X X CRISPIN CRISPIN Systems Ltd. / X X SURFCAM Surfware Inc. / PC/Mac X SolidWorks SolidWorks Corp. / PC X Integrated Quality Direct PC PC-DMIS Wilcox & Assoc. / PC X PiXELS 3D PIXELS Digital Inc. / Autodesk / Direct Mac X Rhinoceros Robert McNeel & Associates / MicroScribe Utility Software / X X Rhinoceros Robert McNeel & Associates / /