home *** CD-ROM | disk | FTP | other *** search
- /* Copyright (c) 1992 The Geometry Center; University of Minnesota
- 1300 South Second Street; Minneapolis, MN 55454, USA;
-
- This file is part of geomview/OOGL. geomview/OOGL is free software;
- you can redistribute it and/or modify it only under the terms given in
- the file COPYING, which you should have received along with this file.
- This and other related software may be obtained via anonymous ftp from
- geom.umn.edu; email: software@geom.umn.edu. */
-
- /* Authors: Charlie Gunn, Pat Hanrahan, Stuart Levy, Tamara Munzner, Mark Phillips */
-
- #include "transform3.h"
-
- /*
- * Premultiply T by the given perspective projection.
- * Probably not too useful; a projection matrix should be postmultiplied,
- * not premultiplied, by a world-to-camera transform.
- */
- void
- Ctm3Perspective( T, l, r, b, t, n, f )
- Transform3 T;
- float l, r, b, t, n, f;
- {
- Transform3 P;
-
- Tm3Perspective( P, l, r, b, t, n, f );
- Tm3Concat( P, T, T );
- }
-