Ray.h

// *********************************************************
// Ray Class
// Author : Tamy Boubekeur (boubek@gmail.com).
// Copyright (C) 2010 Tamy Boubekeur.
// All rights reserved.
// *********************************************************

#ifndef RAY_H
#define RAY_H

#include <iostream>
#include <vector>

#include "Vec3D.h"
#include "BoundingBox.h"
#include "Triangle.h"
#include "Vertex.h"

class Ray {
public:
    inline Ray () {}
    inline Ray (const Vec3Df & origin, const Vec3Df & direction)
        : origin (origin), direction (direction) {}
    inline virtual ~Ray () {}

    inline const Vec3Df & getOrigin () const { return origin; }
    inline Vec3Df & getOrigin () { return origin; }
    inline const Vec3Df & getDirection () const { return direction; }
    inline Vec3Df & getDirection () { return direction; }

    bool intersect (const BoundingBox & bbox, Vec3Df &intersectionPoint) const;
    bool intersectTriangle (Vec3Df & intersectionPoint, Vec3Df p0, Vec3Df p1, Vec3Df p2, float & b0, float & b1, float & b2) const;
    float brdfPhong (Vec3Df intersectionPoint, Vec3Df n0, Vec3Df n1, Vec3Df n2, float b0, float b1, float b2, float diffuse, float specular, Vec3Df lightpos) const;
private:
    Vec3Df origin;
    Vec3Df direction;
};


#endif // RAY_H

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