C++ coding exercise about Lighting Equations (GLM)

/**************************************************** * 2016-2020 Eric Bachmann and Mike Zmuda * All Rights Reserved. * NOTICE: * Dissemination of this information or reproduction * of this material is prohibited unless prior written * permission is granted.. ****************************************************/ #pragma once #include <iostream> #include "IShape.h" /** * @struct RaytracingCamera * @brief Base class for cameras in raytracing applications. */ struct RaytracingCamera { Frame cameraFrame; //!< The camera's frame double left, right, bottom, top; //!< The camera's vertical field of view double nx, ny; //!< Window size RaytracingCamera(const dvec3 &pos, const dvec3 &lookAtPt, const dvec3 &up); void changeConfiguration(const dvec3 &pos, const dvec3 &lookAtPt, const dvec3 &up); dvec2 getProjectionPlaneCoordinates(double x, double y) const; virtual void calculateViewingParameters(int width, int height) = 0; virtual Ray getRay(double x, double y) const = 0; friend ostream &operator << (ostream &os, const RaytracingCamera &camera); }; /** * @struct PerspectiveCamera * @brief Encapsulates a perspective camera for raytracing applications. */ struct PerspectiveCamera : public RaytracingCamera { double fov; //!< The camera's field of view double distToPlane; //!< Distance to image plane PerspectiveCamera(const dvec3 &pos, const dvec3 &lookAtPt, const dvec3 &up, double FOVRads); virtual void calculateViewingParameters(int width, int height); virtual Ray getRay(double x, double y) const; void setFOV(double FOV, int W, int H); }; /** * @struct OrthographicCamera * @brief Encapsulates a orthographic camera for raytracing applications. */ struct OrthographicCamera : public RaytracingCamera { double pixelsPerWorldUnit; //!< Controls the size of the image plane. OrthographicCamera(const dvec3 &pos, const dvec3 &lookAtPt, const dvec3 &up, double ppwu); virtual void calculateViewingParameters(int width, int height); virtual Ray getRay(double x, double y) const; };