End of June, BRL-CAD 7.8.0 for Windows, a valued 3D modeling tool, conducted by the U.S. Army Research Laboratory was finished and released for free download to the public.
Actually, BRL-CAD has a development history of many years, but now also published in a brand new version for Windows platforms. The program not only is intended for 3D modeling and shading but also for ballistic impact and rcs analysis. The GUI is based on the popular, scriptable Tcl/Tk. For BRL-CAD also the source code can be downloaded. The manual comes in four pdf volumes. BRL-CAD is furnished with routines for file format conversions.
BRL-CAD seems to be useful to prepare OFP and may be perhaps later ArmA models in combination with O2 or related tools, in respect, modeling and shading with BRL-CAD is advanced but close to 3D foundations. At least it's an interesting tool for serious models engineering.
BRL-CAD 7.8.0, the source code and the manuals can be downloaded from http://brlcad.com/downloads/downloads.html or http://brlcad.org