scene.h

/* *************************************************************************
                            scene.h  -  description
                             -------------------
    begin                : Wed Oct 16 2002    
    copyright            : (C) 2002 by Micha Riser
    email                : mriser@gmx.net

    $Id: scene_8h-source.html,v 1.1 2005/02/04 21:02:27 micha Exp $
    
 ************************************************************************* */

/* *************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ************************************************************************* */

#ifndef SCENE_H
#define SCENE_H

#include<list>

#include "csg.h"
#include "colour.h"
#include "cameraray.h"
#include "material3d.h"
#include "object3d.h"
#include "lightcache.h"
#include "lightlist.h"

class LightSource;

class Scene {

    friend class CameraPerspective;
    friend class Media3D;    
    friend class Media3DSingle;
    friend class LightRay;
    friend class CameraRay;
    

public: // Constructors and destructor

    Scene(): object(), lights(), referencecount(0), maxtracelevel(100),
      colourprecision(1.0/100),  lightcache(this), bgcolour(ColourA(0,0,0,1)) {
          
//        lightcache.setType(LightCache::NEAREST,200000);
//          lightcache.setType(LightCache::NEW,200000);
        lightcache.setType(/*LightCache::EXACT,*/200000);
          
    }

    ~Scene();

public: // Public methods
    void addObject(Object3D* o) {object.addObject(o);}

    void addLight(LightSource* l);

    void finishParsing() {object.close(); /*object.prepareToRender();*/}

    void setDefaultMaterial(const Material3D& m) {object.setMaterial(m);}

    void setBGColour(ColourA c) {bgcolour = c;}

    ColourA intersect(CameraRay &shoot);

    LightList* getLightList(const Vector3& location) const;

private: // Prviate attributes

    CSGUnion object;

    std::list<LightSource*> lights;

    int referencecount;

    int maxtracelevel;

    FLT colourprecision;

    mutable LightCache lightcache;
    
    ColourA bgcolour;

private: // Private methods
    ColourA intersectRec(CameraRay& shoot);

};

#endif

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