This library must be compiled before compiling SG3d. This source code comes from Paul Haeberli at SGI. It is distributed with all SGI computers in /usr/people/4Dgifts/iristools/libimage. We include it here as a convenience to GRASS users. This library allows SG3d to save images from the graphics window in .rgb files, the IRIS image format. See also: ipaste, movie, snapshot, istat, showcase, imged. See also file format conversion programs: tops, togif, tosun, toscitex, totarga, toppm, etc.