src/rcrt/bxdf/Lambertian.cpp

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#include "Lambertian.h"
#include <cmath>

namespace rcrt
{

Lambertian::Lambertian(const RGBColor& refl):BXDF(0, refl, 0, BXDFType(REFLECTIVE))
{
}

Lambertian::~Lambertian()
{
}

RGBColor Lambertian::eval(const Vec3D& wOut, const Vec3D& wInc, const Vec3D& normal) const
{
        return kd/M_PI;
}

RGBColor Lambertian::evalDiffuse(const Vec3D& wOut, const Vec3D& wInc, const Vec3D& normal) const
{
        return kd/M_PI;
}

RGBColor Lambertian::evalSpecular(const Vec3D& wOut, const Vec3D& wInc, const Vec3D& normal) const
{
        return 0;
}


bool Lambertian::specular() const
{
        return false;
}

bool Lambertian::glossy() const
{
        return false;
}

bool Lambertian::diffuse() const
{
        return true;
}

bool Lambertian::fresnel() const
{
        return false;
}

}

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