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RTPP(1)				    BRL-CAD			       RTPP(1)

NAME
       rtpp - raytrace an mged model, writing a	GIFT-style Pretty Picture file

SYNOPSIS
       rtpp [options...] model.g objects... _ model.pp

DESCRIPTION
       Rtpp operates on	the indicated objects in the input model.g and
       produces	a GIFT-style "pretty picture" format file on standard output.
       The orientation of the rays to be fired may be specified	by the -a and
       -e options, in which case the model will	be autosized, and the grid
       will be centered	on the centroid	of the model, with ray spacing chosen
       to span the entire set of objects.  Alternatively, with the -M option,
       a transformation	matrix may be provided on standard input which maps
       model-space to view-space. In this case,	the grid ranges	from -1.0 <=
       X,Y <= +1.0 in view space, with the size	of the grid (number of pixels)
       specified with -f This option is	most useful when rtpp is being invoked
       from a shell script created by an mged(1) saveview command.

       The following options are recognized.

       -f#
	   Number of pixels in X and Y directions (square grid). Default is
	   512 (512x512), maximum is 1024 (1024x1024).

       -a#
	   Select azimuth in degrees. Used with	-e and conflicts With -M

       -e#
	   Select elevation in degrees.	Used with -a and conflicts with	-M

       -M
	   Read	model2view matrix from standard	input. Conflicts with -a and
	   -e

       -x#
	   Set debug flags to (hexadecimal) number. Not	generally useful.

       The rtpp	program	is a simple front-end to librt(3) which	is most	useful
       when used with mged(1). In order	to display a pretty-picture file, the
       programs	pp-ik(1) and pp-fb(1) are used.

SEE ALSO
       gift(1V), mged(1), pp-ik(1), pp-fb(1), rt(1), rayplot(1), rayvect(1),
       rtpp(1),	rtray(1), librt(3), ray(5V).

DIAGNOSTICS
       Numerous	error conditions are possible. Descriptive messages are
       printed on standard error (file descriptor 2).

BUGS
       Most deficiencies observed while	using the rtpp program are usually
       with the	librt(3) package instead.

AUTHOR
       BRL-CAD Team

COPYRIGHT
       This software is	Copyright (c) 1986-2013	by the United States
       Government as represented by U.S. Army Research Laboratory.

BUG REPORTS
       Reports of bugs or problems should be submitted via electronic mail to
       <devs@brlcad.org>.

BRL-CAD				  07/08/2017			       RTPP(1)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | DIAGNOSTICS | BUGS | AUTHOR | COPYRIGHT | BUG REPORTS

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