32 	Colour bg_colour;

    32 	Colour bg_colour;

    33 	int ao_samples;

    33 	int ao_samples;

    34 	float ao_distance, ao_angle;

    34 	float ao_distance, ao_angle;

    35 

    35 

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

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

    39 public:

    37 public:

    40 	Raytracer(): lights(), bg_colour(0.0, 0.0, 0.0), ao_samples(0) { top = new KdTree(); };

    38 	Raytracer(): lights(), bg_colour(0.0, 0.0, 0.0), ao_samples(0) { top = new KdTree(); };

    41 	~Raytracer() {};

    39 	~Raytracer() {};

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

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

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

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