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/****************************************************************************
* csg.h
*
* This module contains all defines, typedefs, and prototypes for CSG.CPP.
*
* from Persistence of Vision(tm) Ray Tracer version 3.6.
* Copyright 1991-2003 Persistence of Vision Team
* Copyright 2003-2004 Persistence of Vision Raytracer Pty. Ltd.
*---------------------------------------------------------------------------
* NOTICE: This source code file is provided so that users may experiment
* with enhancements to POV-Ray and to port the software to platforms other
* than those supported by the POV-Ray developers. There are strict rules
* regarding how you are permitted to use this file. These rules are contained
* in the distribution and derivative versions licenses which should have been
* provided with this file.
*
* These licences may be found online, linked from the end-user license
* agreement that is located at http://www.povray.org/povlegal.html
*---------------------------------------------------------------------------
* This program is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
*---------------------------------------------------------------------------
* $File: //depot/povray/3.6-release/source/csg.h $
* $Revision: #2 $
* $Change: 2939 $
* $DateTime: 2004/07/04 13:43:26 $
* $Author: root $
* $Log$
*****************************************************************************/
#ifndef CSG_H
#define CSG_H
BEGIN_POV_NAMESPACE
/*****************************************************************************
* Global preprocessor defines
******************************************************************************/
#define UNION_OBJECT (IS_COMPOUND_OBJECT)
#define MERGE_OBJECT (IS_COMPOUND_OBJECT)
#define INTERSECTION_OBJECT (IS_COMPOUND_OBJECT)
/* CSG types */
#define CSG_UNION_TYPE 1
#define CSG_INTERSECTION_TYPE 2
#define CSG_DIFFERENCE_TYPE 4
#define CSG_MERGE_TYPE 8
#define CSG_SINGLE_TYPE 16
/*****************************************************************************
* Global typedefs
******************************************************************************/
typedef struct CSG_Struct CSG;
struct CSG_Struct
{
COMPOUND_FIELDS
int do_split;
};
/*****************************************************************************
* Global variables
******************************************************************************/
extern METHODS CSG_Intersection_Methods;
extern METHODS CSG_Merge_Methods;
extern METHODS CSG_Union_Methods;
/*****************************************************************************
* Global functions
******************************************************************************/
CSG *Create_CSG_Union (void);
CSG *Create_CSG_Merge (void);
CSG *Create_CSG_Intersection (void);
void Compute_CSG_BBox (OBJECT *Object);
void Determine_CSG_Textures(CSG *Csg, VECTOR IPoint, int *Count, TEXTURE **Textures, DBL *Weights);
END_POV_NAMESPACE
#endif
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