InterfaceStatistics.h

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#pragma once
 
#include "Math/Color/Spectrum.h"
#include "Core/SurfaceBehavior/SurfaceOptics/LaurentBelcour/LbLayer.h"
#include "Core/SurfaceBehavior/SurfaceOptics/LaurentBelcour/TableFGD.h"
#include "Core/SurfaceBehavior/SurfaceOptics/LaurentBelcour/TableTIR.h"
#include "DataIO/FileSystem/CoreResource.h"
 
#include <Common/assertion.h>
#include <Common/primitive_type.h>
 
namespace ph
{
 
class InterfaceStatistics
{
public:
    InterfaceStatistics(real cosWi, const LbLayer& layer1);
 
    bool addLayer(const LbLayer& layer2);
 
    real getEquivalentAlpha() const;
    const math::Spectrum& getEnergyScale() const;
    LbLayer getLastLayer() const;
 
private:
    real           m_equivalentAlpha;
    math::Spectrum m_energyScale;
 
    LbLayer        m_layer0, m_layer1;
 
    real           m_cosWi;
    math::Spectrum m_R0i,  m_Ri0,  m_T0i,  m_Ti0;
    real           m_sR0i, m_sRi0, m_sT0i, m_sTi0;
    real           m_J0i,  m_Ji0;
 
    static const TableFGD& FGD();
    static const TableTIR& TIR();
};
 
// In-header Implementations:
 
inline InterfaceStatistics::InterfaceStatistics(const real cosWi, const LbLayer& layer1) :
 
    m_equivalentAlpha(0.0_r), 
    m_energyScale(1.0_r),
 
    m_layer0(layer1), m_layer1(layer1),
 
    m_cosWi(cosWi),
    m_R0i (0), m_Ri0 (0), m_T0i (1), m_Ti0 (1),
    m_sR0i(0), m_sRi0(0), m_sT0i(0), m_sTi0(0),
    m_J0i (1), m_Ji0 (1)
{
    PH_ASSERT(0.0_r <= m_cosWi && m_cosWi <= 1.0_r);
 
    // DEBUG
    const TableFGD& fgd = FGD();
    const TableTIR& tir = TIR();
}
 
inline real InterfaceStatistics::getEquivalentAlpha() const
{
    return m_equivalentAlpha;
}
 
inline const math::Spectrum& InterfaceStatistics::getEnergyScale() const
{
    return m_energyScale;
}
 
inline LbLayer InterfaceStatistics::getLastLayer() const
{
    return m_layer1;
}
 
inline const TableFGD& InterfaceStatistics::FGD()
{
    static const TableFGD table(CoreResource("LaurentBelcourBsdf/table_FGD.bin").getPath());
    return table;
}
 
inline const TableTIR& InterfaceStatistics::TIR()
{
    static const TableTIR table(CoreResource("LaurentBelcourBsdf/table_TIR.bin").getPath());
    return table;
}
 
}// end namespace ph