"I am not in favor using with import and export feature to work with application to application. Didnt you know that it is really pain for modeling users." One advantage that you may be overlooking is something I find myself doing more and more lately. With Hexagon as my modeler I can keep right on modeling while Carrara is rendering in the background. Without an external modeler the Carrara render times become wasted (3D) time. I was rendering a pretty good sized particle simulation with several hundred poser figures running around while working on a model in Hexagon today. My pc is not that new (AMD 2800 -w- 1gig) but Hexagon did not seem to slow down much at all, with Carrara grabbing cpu cycles in the background. wayne k guam usa