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Diffstat (limited to 'hacks/glx/normals.h')
| -rw-r--r-- | hacks/glx/normals.h | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/hacks/glx/normals.h b/hacks/glx/normals.h deleted file mode 100644 index 09197a9..0000000 --- a/hacks/glx/normals.h +++ /dev/null @@ -1,32 +0,0 @@ -/* normals, Copyright (c) 2002-2021 Jamie Zawinski <jwz@jwz.org> - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation. No representations are made about the suitability of this - * software for any purpose. It is provided "as is" without express or - * implied warranty. - * - * Compute normal vectors for arbitrary triangles. - */ - -#ifndef __NORMALS_H__ -#define __NORMALS_H__ - -typedef struct { - double x,y,z; -} XYZ; - -/* Calculate the unit normal at p given two other points p1,p2 on the - surface. The normal points in the direction of p1 crossproduct p2 - */ -extern XYZ calc_normal (XYZ p, XYZ p1, XYZ p2); - -/* Call glNormal3f() with a normal of the indicated triangle. - */ -extern void do_normal (GLfloat x1, GLfloat y1, GLfloat z1, - GLfloat x2, GLfloat y2, GLfloat z2, - GLfloat x3, GLfloat y3, GLfloat z3); - -#endif /* __NORMALS_H__ */ |