Xraw is mainly derived from Xaw (author Chris D. Reterson) and partly Xaw3d (author Kaleb Keithley). This is an attempt to remake Xaw by adding 3d rendering in widget imaging as is in OSF/Motif. In addition some new widgets were created. It began as part of work on the LEaP molecular graphics program in the AMBER Project at Peter Kollman's lab at the University of California.