1  /* ************************************************************************** */
  2  /*                                                                            */
  3  /*                                                        :::      ::::::::   */
  4  /*   minirt.h                                           :+:      :+:    :+:   */
  5  /*                                                    +:+ +:+         +:+     */
  6  /*   By: salee2 <salee2@student.42seoul.kr>         +#+  +:+       +#+        */
  7  /*                                                +#+#+#+#+#+   +#+           */
  8  /*   Created: 2023/05/24 20:23:52 by salee2            #+#    #+#             */
  9  /*   Updated: 2023/05/24 20:23:53 by salee2           ###   ########.fr       */
 10  /*                                                                            */
 11  /* ************************************************************************** */
 12  
 13  #ifndef MINIRT_MINIRT_H
 14  #define MINIRT_MINIRT_H
 15  
 16  #include "define.h"
 17  #include "enum.h"
 18  #include "typedef.h"
 19  #include "include.h"
 20  
 21  t_vec2 vec2_(double x, double y);
 22  
 23  t_vec3 vec3_(double ai, double bj, double ck);
 24  
 25  t_vec3 add(t_vec3 u, t_vec3 v);
 26  
 27  t_vec3 sub(t_vec3 u, t_vec3 v);
 28  
 29  t_vec3 scl_mul(double k, t_vec3 vector);
 30  
 31  double mag_sq(t_vec3 vec);
 32  
 33  double mag(t_vec3 vec);
 34  
 35  t_vec3 norm(t_vec3 vector);
 36  
 37  double dot(t_vec3 u, t_vec3 v);
 38  
 39  t_vec3 cross(t_vec3 u, t_vec3 v);
 40  
 41  
 42  
 43  t_sphere* sphere_(t_point3 center, double radius);
 44  
 45  //t_hit intersect_ray_collision(t_ray* ray, t_sphere* sphere);
 46  
 47  
 48  t_raytracer raytracer_(const int width, const int height);
 49  
 50  t_vec3 screen_to_world(t_vec2 pos_screen, t_raytracer* raytracer);
 51  
 52  t_point3 point3_(double x, double y, double z);
 53  
 54  t_color3 color3_(double r, double g, double b);
 55  
 56  
 57  t_ray ray_(t_point3 origin, t_vec3 dir);
 58  
 59  t_vec3 ray_at(double t, t_ray* ray);
 60  
 61  
 62  
 63  int	ray_color(t_scene* scene);
 64  
 65  
 66  t_bool intersect_ray_sphere(t_object* object, t_ray* ray, t_hit* hit);
 67  
 68  
 69  t_canvas canvas_(int height);
 70  
 71  //t_camera camera_(t_canvas* canvas, t_vec3 origin);
 72  
 73  t_camera
 74  camera_(t_canvas* canvas, t_point3 look_from, t_point3 look_at, double h_fov);
 75  
 76  t_ray primary_ray(t_camera* cam, t_vec2 xy);
 77  
 78  //t_ray primary_ray(t_camera* cam, double u, double v);
 79  
 80  void set_hit_face_normal(t_ray* ray, t_hit* hit);
 81  
 82  
 83  t_object* object_(t_object_type type, void* element, t_color3 albedo);
 84  
 85  
 86  void append_object(t_object** list, t_object* object);
 87  
 88  t_object* back_object(t_object* list);
 89  
 90  t_bool hit_objects(t_object* objects, t_ray* ray, t_hit* hit);
 91  
 92  
 93  
 94  t_light* light_point(t_point3 origin, t_color3 color, double bright_ratio);
 95  
 96  t_hit hit_(double t_max);
 97  
 98  //t_hit hit_(void);
 99  
100  
101  t_vec3 hadam_prod(t_vec3 u, t_vec3 v);
102  
103  t_vec3 elem_min(t_vec3 u, t_vec3 v);
104  
105  t_color3 phong_lighting(t_scene* scene);
106  
107  t_color3 point_light_get(t_scene* scene, t_light* light);
108  
109  void render(t_scene* scene);
110  
111  
112  t_cylinder*
113  cylinder_(t_point3 center, t_vec3 dir, double radius, double height);
114  
115  t_bool intersect_ray_cylinder(t_object* object, t_ray* ray, t_hit* hit);
116  
117  
118  t_plane* plane_(t_point3 point, t_vec3 normal);
119  
120  t_bool intersect_ray_plane(t_object* object, t_ray* ray, t_hit* hit);
121  
122  t_scene* scene_(void);
123  
124  void write_color(t_color3 color);
125  
126  void update_hit(t_ray* ray, t_hit* hit, t_point3 center, t_color3 albedo);
127  
128  t_bool intersect_cylinder_base(t_object* object, t_ray* ray, t_hit* hit,
129  							   enum e_component type);
130  
131  t_bool intersect_cylinder_surface(t_object* object, t_ray* ray, t_hit* hit);
132  
133  t_cone* cone_(t_point3 center, t_vec3 dir, double radius, double height);
134  
135  t_bool intersect_cone_surface(t_object* object, t_ray* ray, t_hit* hit);
136  
137  t_bool intersect_ray_cone(t_object* object, t_ray* ray, t_hit* hit);
138  
139  t_bool intersect_cone_base(t_object* object, t_ray* ray, t_hit* hit);
140  
141  t_bool intersect_cone_surface(t_object* object, t_ray* ray, t_hit* hit);
142  
143  t_vec3 clamp_vec3(t_vec3 value, t_vec3 min, t_vec3 max);
144  
145  
146  int red_cross(void);
147  
148  int key_hook(int keycode, t_vars* vars);
149  
150  void get_minirt_image(t_vars* vars);
151  
152  int ft_atoi(const char* str, int* is_error, double* sign);
153  
154  double ft_atof(const char* str);
155  
156  int ft_isdigit(int c);
157  
158  int create_trgb(t_color3 color);
159  
160  t_color3 get_diffuse(t_vec3 normal, t_vec3 light_dir, t_color3 color);
161  
162  t_color3 get_specular(t_scene* scene, t_vec3 light_dir, t_color3 color);
163  
164  void free_scene(t_scene* scene);
165  
166  
167  
168  #endif //MINIRT_MINIRT_H