MiniRT

This projects aims to create a mini raytracer with basic features such as :

• Ambient lighting
• Spot lights
• Directionnal lights (bonus)
• Shadows
• Specular reflection (bonus)
• Reflection (bonus)
• Interactions (translation, resize, rotation) with objects and camera
• Interactions (translation, brightness) with lights
• Representation of basic objects (Speres, Cylinders, Planes)

Project finished at 110%.

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Here some snippets and a live demo :

Screen_Recording_2024-03-03_at_22-36-01.mov

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Installation :

Requirements :

You need a minimal dev environnement (gcc, make, etc).

If you're on MacOS you also probably need to install Xquartz:

brew install Xquartz
reboot

Building and execution:

git clone https://github.com/Milvintsiss-42/miniRT.git
cd miniRT
make bonus
./miniRT [some map file]

Maps files can be found in maps directory (most bonus files take 4-5 seconds to load, this raytracer is not optimized at all, be patient).

Controls :

KEY	ACTION
Mouse click	Selects the object or light pointed by mouse cursor.
Mouse scroll	Increments/Decrements the current parameter.
C	Toggles camera interactions, when this flag is ON all interactions belongs to the camera. If the flag is OF interactions belongs to the selected objects/lights. [Defaults to ON]
S, T, R	Switches between the following interaction modes: RESIZE (S): - Resizes the diameter of selected spheres. - Resizes the diameter and/or height of selected cylinders. - Increments/decrements intensity of selected lights. - Zoom in/out (translates the camera in the direction pointed by the mouse cursor). - Increments/decrements camera FOV. TRANSLATE (T): Translates the origin of the selected objects/lights/camera along the selected axis. ROTATE (R): Rotates the selected objects/camera along the selected axis. [Defaults to S]
X, Y, Z	Selects the corresponding axis. [Defaults to X]
L	Makes spot lights visible (represented by a small white sphere), you can only select lights when they are visible.
SPACE	Unselects all objects and lights.
M	Enables/disables reflection for all objects.
F	Toggles FOV flag. When this flag is active, RESIZE action in camera mode will modify the camera FOV value, instead of triggering a zoom/dezoom. [Defaults to OF]
H	Toggles HEIGHT flag. When this flag is active, RESIZE action will modify the height of selected objects that have a height property. This flag is additionable with DIAMETER flag. [Defaults to ON]
D	Toggles DIAMETER flag. When this flag is active, RESIZE action will modify the diameter of selected objects that have a diameter property. This flag is additionable with HEIGHT flag. This flag does not apply to spheres. [Defaults to OF]
A	Toggles AMB_LIGHT flag. When this flag is active, interactions will only apply to the ambiant light. So if a mouse scroll event occurs, it will increment/decrement the brightness of the ambiant light. [Defaults to OF]