Short name for C for Graphics. Cg is a high-level shading language created by NVIDIA for programming vertex and fragment shaders. See [http://en.wikipedia.org/wiki/Cg_programming_language] or [http://developer.nvidia.com/object/cg_toolkit.html] for more information. ''Note: The Cg Toolkit is no longer under active development or support.'' [Tcl3D] provides a wrapper of the Cg library (Version 2.2.006). It also has some demonstration programs [http://www.tcl3d.org/cgi-bin/demolist.tcl?dir=LibrarySpecificDemos/tcl3dCg] using Cg. <> Category Graphics|Category 3D Graphics|Category Tcl3D