rtraytracer.h

#ifndef RTRAYTRACER_H
#define RTRAYTRACER_H

#include "rtcolor.h"
#include "rtray.h"
#include "rtscene.h"
#include "rtlight.h"
#include "rtcamera.h"

class RTRayTracer
{
public:
    RTRayTracer();

    /**
     * @brief traceRay
     * @param ray
     * @param depth
     * @return
     */
    RTColor traceRay(RTRay& ray, int depth, RTLight light);


    RTScene getScene() const;
    void setScene(const RTScene &value);


private:

    RTScene scene;

    RTColor shading(RTObject *obj, RTVector &hit, RTLight light);

    bool shadowTest(RTRay shadowRay, double distLight, RTObject *hitObject);

    RTRay genReflectionRay(RTVector d, RTVector n, RTVector closestPoint);

    RTRay genRefractRay(RTVector d, RTVector normal, RTVector closestPoint, double refractionIndex, bool isInside);

    RTColor getFragmentColor(RTObject* obj, RTVector hit);
    double FresnelTerm(RTVector d, RTVector normal, double indexRefrac, bool isInside);
};

#endif // RTRAYTRACER_H