RadShader.h

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/* $Id:$ */

#ifndef __RADIOSITY_SHADER_H
#define __RADIOSITY_SHADER_H

#include <gra/shader/GlobalShader.h>
#include <gra/reflection/Radiosity.h>
#include <esg/SceneGraphObject.h>

using namespace esg;

namespace gra {

class GRA_EXPORT RadShader : public GlobalShader {
protected:
        int           _meshDensity;
        LocalShader * _pLocalShader;
    
public:
        RadShader (Radiosity * m, int d, LocalShader * s)
            : GlobalShader(m, NULL, NULL), _meshDensity(d), _pLocalShader(s) {}

        virtual void setScene (Scene * /* scene */);
    
        virtual void distributeEnergy (void);

        virtual bool setRenderedShape (SceneGraphObject *, const Matrix4 *);

        virtual Color3f* illuminatePoint (const Vector3& /* point of interest*/,
                                          const Vector3& /* its normal       */,
                                          const Vector3& /* dir to eye       */,
                                          float          /* eye distance     */,
                                          double*        /* normal * eye_dir */,
                                          const Matrix4* /* tr. matrix       */);
};
    
} // namespace

#endif // __RADIOSITY_SHADER_H

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