BRL-CAD is a powerful constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing support for rendering and geometric analysis, path-tracing for realistic image synthesis, network distributed framebuffer support, and image and signal-processing tools.
License: GNU Lesser General Public License (LGPL)
Changes:
This version is the most feature-filled backwards-compatible release to date, providing more than 75 new features, bugfixes, and other enhancements. More than two years effort has produced extensive enhancements to the Windows port including many bugfixes, more of the BRL-CAD ray-trace applications, converters, and much more. There is a new geometry importer for the INTAVAL geometry format. This release returns the "clone" command to mged, has various Tcl/Tk dependency enhancements, and has more editor enhancements.
