1 /*

     2  * C++ RayTracer

     3  * file: raytracer.h

     4  *

     5  * Radek Brich, 2006

     6  */

     7 

     8 #ifndef RAYTRACER_H

     9 #define RAYTRACER_H

    10 

    11 #include <vector>

    12 

    13 #include "scene.h"

    14 

    15 using namespace std;

    16 

    17 /* axis-aligned bounding box */

    18 class AABB

    19 {

    20 };

    21 

    22 class ShapeList: public vector<Shape*>

    23 {

    24 	AABB extends() { return AABB(); };

    25 };

    26 

    27 class Raytracer

    28 {

    29 	ShapeList shapes;

    30 	vector<Light*> lights;

    31 	Colour bg_colour;

    32 	int ao_samples;

    33 	float ao_distance, ao_angle;

    34 

    35 	Vector3 SphereDistribute(int i, int n, float extent, Vector3 &normal);

    36 	inline Shape *nearest_intersection(const Shape *origin_shape, const Ray &ray,

    37 		float &nearest_distance);

    38 	Colour raytrace(Ray &ray, int depth, Shape *origin_shape);

    39 public:

    40 	Raytracer(): shapes(), lights(), bg_colour(0.0, 0.0, 0.0), ao_samples(0) {};

    41 	~Raytracer() {};

    42 	float *render(int w, int h);

    43 	void addshape(Shape *shape);

    44 	void addlight(Light *light);

    45 

    46 	void ambientocclusion(int samples, float distance, float angle);

    47 };

    48 

    49 #endif