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- /* 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, Stuart Levy, Tamara Munzner, Mark Phillips */
-
- typedef struct {
- Point3 o, d;
- Float dist;
- } Ray;
-
- extern void RayTransform( Ray *ray, Transform3 );
- extern void RayNormalize( Ray *ray );
-
- #define RAY_EPSILON 1e-5
-