source: GTP/trunk/App/Demos/Illum/pathmap/Radion.cpp @ 2197

#include "dxstdafx.h"
#include "Radion.hpp"
#include <iostream>

Radion::Radion(void)
{
}

Radion::~Radion(void)
{
}

double Radion::getFormFactorTo(const Radion& o) const
{
        Vector diff = position - o.position;
        double dist2 = diff.norm2();
        double cosa = o.normal * diff; // / dist
        double cosb = - (normal * diff); // / dist
        if(cosa < 0 || cosb < 0)
                return 0;
        return cosa * cosb / dist2 / dist2;
}

/*std::ostream& operator<<(std::ostream& s, const Radion& r)
{
        s.write((char*)&r, sizeof(Radion));
        return s;
}

std::istream& operator>>(std::istream& s, Radion& r)
{
        s.read((char*)&r, sizeof(Radion));
        return s;
}*/

std::ostream& operator<<(std::ostream& s, const Radion& r)
{
        s << "pos " << r.position.x << ' ' << 
                r.position.y << ' ' << 
                r.position.z << '\n';

        s << "normal " << r.normal.x << ' ' << 
                r.normal.y << ' ' << 
                r.normal.z << '\n';

        s << "prob " << r.radiance.sum() << '\n';

        return s;
}

std::istream& operator>>(std::istream& s, Radion& r)
{
        char k[128];

        s >> k >> r.position.x >>
                r.position.y >>
                r.position.z;
        s >> k >> r.normal.x >>
                r.normal.y >>
                r.normal.z;

        s >> k >> r.radiance.x;

        r.radiance.y = r.radiance.z = 0.0;

        return s;
}