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/*******************************************************************************
* csg.h
*
* This module contains all defines, typedefs, and prototypes for CSG.CPP.
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray 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/public/povray/3.x/source/backend/shape/csg.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#ifndef CSG_H
#define CSG_H
namespace pov
{
/*****************************************************************************
* Global preprocessor defines
******************************************************************************/
/* 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
******************************************************************************/
class CSG : public CompoundObject
{
public:
CSG(int t) : CompoundObject(t) {}
CSG(int t, CompoundObject& o, bool transplant) : CompoundObject(t, o, transplant) {}
int do_split;
virtual void Normal(VECTOR, Intersection *, TraceThreadData *) const { }
virtual void Translate(const VECTOR, const TRANSFORM *);
virtual void Rotate(const VECTOR, const TRANSFORM *);
virtual void Scale(const VECTOR, const TRANSFORM *);
virtual void Transform(const TRANSFORM *);
virtual void Compute_BBox();
virtual void Invert();
void Determine_Textures(Intersection *isect, bool hitinside, WeightedTextureVector& textures, TraceThreadData *Threaddata);
virtual CSG *Morph(void) = 0;
};
class CSGUnion : public CSG
{
public:
CSGUnion();
CSGUnion(int t);
CSGUnion(int t, CompoundObject& o, bool transplant) : CSG(t, o, transplant) {}
virtual ObjectPtr Copy();
virtual bool All_Intersections(const Ray&, IStack&, TraceThreadData *);
virtual bool Inside(const VECTOR, TraceThreadData *) const;
virtual CSG *Morph(void);
};
class CSGMerge : public CSGUnion
{
public:
CSGMerge();
CSGMerge(CompoundObject& o, bool transplant);
virtual ObjectPtr Copy();
virtual bool All_Intersections(const Ray&, IStack&, TraceThreadData *);
virtual CSG *Morph(void);
};
class CSGIntersection : public CSG
{
public:
CSGIntersection(bool diff);
CSGIntersection(bool diff, CompoundObject& o, bool transplant);
virtual ObjectPtr Copy();
virtual bool All_Intersections(const Ray&, IStack&, TraceThreadData *);
virtual bool Inside(const VECTOR, TraceThreadData *) const;
virtual CSG *Morph(void);
bool isDifference;
};
}
#endif
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