A basic Ray Tracing rendering engine part of 42 School program.
It allow to render many geometrical shape such as sphere, plane, cylinder, triangle and ellipsoid. It handle diffuse and ambiant light, specular reflection and bump map.
It was created using the Codam MLX, a C graphical library based on the MLX of 42.
This project has been made in collaboration with Gabriel Touzalin(https://github.com/TheEmperorPenguin)
Clone the repo the use
make to build the binary.
./miniRT {map} Replace {map} by the path to your map
You can modify the resolution by modifying the WIDTH et HEIGHT variables in config.h and use
make re
Large resolution can be long to load
You can move the camera using the following keys (QWERTY):
-
Forward: W -
Backward: S -
Left: A -
Right: D -
Up: spacebar -
Down: Shift -
Rotation on vertical axis: Up key - Down key -
Rotation on horizontal rule axis: Left key - Right key -
Rotation on frontal axis: Q - E
You can also select an object by clicking on it and move it with the numeric keypad
Maps must be written in '.rt' files.
All elements must be specified by their code followed by the element specifications.
Lines with wrong ids will be ignored.
Ambiant light
A Intensity([0-1]) color(RGB)
Spotlight
L coordinates(x, y, z) intensity([0-1]) color(RGB)
Camera
C coordinates(x, y, z) direction vector(x, y, z) FOV
Sphere
s coordinates (x, y, z) diameter color(RGB)
Plane
p coordinates(x, y, z) direction vector(x, y, z) color(RGB)
Cylinder
cy coordinates (x, y, z) direction vector(x, y, z) diameter height color(RGB)
Triangle
tr first summit coordinates(x, y, z) second summit coordinates (x, y, x) third summit coordinates (x, y, x)color(RGB)
Ellipsoid
el origin coordinates(x, y, z) direction vector(x, y, z) semi-axes a length(float) semi-axes b length(float) semi-axes c length(float) color(RGB)
Object specifications
Every object definition can be followed by specifications common to all objects:
- specular light ratio
- texture
Specular light
The specular light is using the Phong reflection model You can choose to specify by adding 'specular' after the definiton of an element and precising n coefficient and Ks coefficient following the Phong model.
Textures
You can also precise texture to add to element. There is 3 possibilities: - Checkerboard: You can add a checkeboard effect on an element by adding 'checkerboad' after it's definition - PNG texture: You can apply a PNG image as a texture on an element by adding his relative path after the element definition - Bump map: You can apply a bump map as a texture on an element by adding 'bump' followed by the absolute path to the file
Maps must have at one and only one ambiant light and one camera.
