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>> >> As far as I have seen, these API's are not for compatible models, >> but designed to produce real time rendering on the fly. In other >> words the problems with different formats for modeling will still >> exist, but the rendering for games and engineering demos will closer >> exhibit "true" 3D because nothing will be prerendered. << Alan, >> Thanks for the reply. Again, I'm no expert but I think the four new >> standards I mentioned, QuickDraw, OpenGL, Reality Lab, and Keystone >> are all somewhat different. I'm fairly sure that Quickdraw contains >> an object/scene exchange standard, and perhaps other features as >> well, and I think OpenGL contains some exchange capabilities along >> these lines as well. The Reality Lab API is certainly designed mainly >> for realtime rendering, but I believe it also includes specs for >> model files (XOF), and features which would help to standard >> interfaces as well,… for those who chose to support it. According to everything I have read, They still don't make meodels "compatable " with other modelers, they are program libraries to animate and render on the fly for real time animation. But if you wish to read more about some of the programs send e-mail to: Criterion (Render Ware) rw-support@criterion.canon.co.uk RenderMorphics (Reality Lab) info@render.com SGI and MS for OpenGL and Appel QuickDRAW Gx be easily found in their respective forums here on CIS. Alan