src/rcrt/lights/DirLight.cpp

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#include "DirLight.h"

namespace rcrt
{

DirLight::DirLight(const RGBColor& p, const Vec3D& dir):Light(p), direction(dir)
{
}

DirLight::~DirLight()
{
}

const Vec3D& DirLight::getDirection() const
{
        return direction;
}

LightSample DirLight::illuminate(const Point3D& p, const Vec3D& no) const
{               
        float angle = direction * no;
        if(angle > 0.0f)
                return LightSample(0,direction*-1,std::numeric_limits<float>::infinity(),0);
        
        float dist = std::numeric_limits<float>::infinity();
        
        return LightSample(1, direction, dist, power*angle);
}

void DirLight::illuminate(const Point3D& p, const Vec3D& no, std::vector<LightSample>& samples,
                        const int& noSamples, Scene* s) const
{
        samples.push_back(illuminate(p,no));
}

RGBColor DirLight::getEmitted(const Vec3D& dir, const Point3D& pos) const
{
        return power;
}

void DirLight::emitPhoton(Photon* photon) const
{
        //TODO
}

}

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