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ProgRad.h

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/*
    File:           ProgRad.h

    Function:       Provides a class for lighting a scene using progressive 
                    radiosity.
                    
    Author(s):      Andrew Willmott

    Copyright:      (c) 1997-2000, Andrew Willmott
 */

#ifndef __ProgRad__
#define __ProgRad__

#include "RadMethod.h"

class ProgRad : public RadMethod
{
public:
    Bool        Render();               
    Int         Stage(Int stage);       
    RadElem     *NewMesh();

    Void        DrawMatrix(Renderer &r);
    Void        DumpStats();
    
    Void        MakeFormFactorFromVector(RadElem &fromPatch, PatchList &patches,
                    ColourList &result);

    ColourList  B;                      // Radiosity of scene elements
    ColourList  S;                      // Unshot radiosities
    
    Int         maxPowerIndex;          
                // index of patch with largest unshot power
    GCLReal     error, maxPower, origShoot;
    Colour      envRad;
                // Ambient radiosity.
    Int         iterations;
    
    ColourList  FFRow;          // Row of form factors * reflectance for R, G, B

#ifdef RAD_VIS
    Array<ColourList>
                FFRows; // previous rows for matrix display
#endif

    static Void *New() { return(new ProgRad); };
};

#endif

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