
	IGRIP2gf

	Usage: IGRIP2gf infile outfile


	Example

		IGRIP2gf robot.part robot.gl

	IGRIP is a full-featured 3D drawing program available
	for the Silicon Graphics family of workstations.  It
	allows the user to select from a range of pre-defined
	3D primitives, edit the characteristics of these
	primitives, add/subtract/cut other primitives, etc.
	You can also modify the surface texture and color and
	the lighting model used by the Igrip program.
	
	To my knowledge, the Igrip program requires the SGI GL
	library, and can only be used on workstations and
	Xterminals that support the (new) (optional) OpenGL
	graphics software.  The filter will allow objects 
	produced by this package to be viewed on any system
	which supports the Xmgf viewing program.

	Known Bugs 

	The current filter is designed to support only polygon 
	surface patches.

	Dan Johnston
	National Research Council of Canada
	1993-Nov-09
