42-RTv1

First Ray tracer in C. Personal project developed at Ecole 42.

Functionalities:

• The program traces rays from one camera to n objects, the objects have shading and cast shadows on each other based the position of a single source of light.
• it takes keyboard input for moving the camera (W,A,S,D,Q,E), rotate the camera (arrows) moving the light(J,K), changing resolution ([,]) and fov angle (+,-) in the scene in real time.
• RTv1 takes as input a custom file format based on comma separated values (examples found in the scenes folder), from the file it can get these informations:
  • camera (location and direction);
  • light (location);
  • objects:
    • sphere (color, location and radius);
    • cylinder (color, location, axis and radius);
    • cone (color, location, axis and angle);
    • plane (color, normal and distance from 0,0,0);

Examples

some images ad videos of Rtv1 in action

youtube video

./rtv1 scenes/room_sphere

moving the light moving the camera

Images

How to use:

install minilibx, got to the folder and type "make" in the comand line then run ./rtv1 with the path of a scene as argument. example:

make
./rtv1 scenes/room_cone

Challenges

this program was created without much help from standard libraries, these are all the standard function used:

• open
• read
• write
• malloc
• free
• math:
  • sin()
  • cos()
  • pow()
• mlx graphic library:
  • to create a window
  • use keyboard input
  • color a single pixel most standard library functions were recreated in a previous project called LIBFT.

TODO: - Finish implementing SDL2 framework