1 /****************************************************************************
4 * This module contains all defines, typedefs, and prototypes for CSG.C.
6 * from Persistence of Vision(tm) Ray Tracer
7 * Copyright 1996,1999 Persistence of Vision Team
8 *---------------------------------------------------------------------------
9 * NOTICE: This source code file is provided so that users may experiment
10 * with enhancements to POV-Ray and to port the software to platforms other
11 * than those supported by the POV-Ray Team. There are strict rules under
12 * which you are permitted to use this file. The rules are in the file
13 * named POVLEGAL.DOC which should be distributed with this file.
14 * If POVLEGAL.DOC is not available or for more info please contact the POV-Ray
15 * Team Coordinator by email to team-coord@povray.org or visit us on the web at
16 * http://www.povray.org. The latest version of POV-Ray may be found at this site.
18 * This program is based on the popular DKB raytracer version 2.12.
19 * DKBTrace was originally written by David K. Buck.
20 * DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
22 *****************************************************************************/
30 /*****************************************************************************
31 * Global preprocessor defines
32 ******************************************************************************/
34 #define UNION_OBJECT (COMPOUND_OBJECT)
35 #define MERGE_OBJECT (COMPOUND_OBJECT)
36 #define INTERSECTION_OBJECT (COMPOUND_OBJECT)
40 #define CSG_UNION_TYPE 1
41 #define CSG_INTERSECTION_TYPE 2
42 #define CSG_DIFFERENCE_TYPE 4
43 #define CSG_MERGE_TYPE 8
44 #define CSG_SINGLE_TYPE 16
48 /*****************************************************************************
50 ******************************************************************************/
52 typedef struct CSG_Struct CSG
;
61 /*****************************************************************************
63 ******************************************************************************/
65 extern METHODS CSG_Intersection_Methods
;
66 extern METHODS CSG_Merge_Methods
;
67 extern METHODS CSG_Union_Methods
;
71 /*****************************************************************************
73 ******************************************************************************/
75 CSG
*Create_CSG_Union (void);
76 CSG
*Create_CSG_Merge (void);
77 CSG
*Create_CSG_Intersection (void);
78 void Compute_CSG_BBox (OBJECT
*Object
);