Raytracer

Version française

Real-time raytracer written in C++20 featuring a modular architecture, dynamic plugin system for shapes and an interactive rendering pipeline. The engine includes a graphics abstraction layer, allowing the use of any rendering library; an SFML implementation is currently provided. The project also supports object creation, editing and deletion directly through the GUI while allowing free navigation inside the 3D scene.

Dependencies

• CMake >= 3.16
• SFML 2.5
• libconfig++ (config++)
• dl (Linux)

Quick install (Ubuntu/Debian)

sudo apt install cmake libsfml-dev libconfig++-dev

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Build

Release build

cmake -S . -B build
cmake --build build -j

Debug build

cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug
cmake --build build -j

The raytracer executable will be generated at the project root, while plugins are placed inside the plugins/ directory.

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Project structure

src/
├── Graphics/        # GUI, preview and SFML backend
├── Math/            # Vectors, points and 3D math
├── RayTracer/       # Core raytracer
│   ├── BVH/         # BVH acceleration structure
│   ├── Lights/      # Lighting system
│   └── Shapes/      # Dynamically loaded shapes
├── utils/           # Parsing and utilities
└── main.cpp

Available plugins

• Sphere
• Plane
• Cone
• Infinite Cone
• Cylindre
• Infinite Cylinder
• Torus
• TangleCube

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Controls

Movement

Key	Action
ZQSD	Movement
Space	Move up
Shift	Move down
Arrows	Camera orientation
A / E	Rotate camera left / right
P	saves a screenshot using the PPM P6 format

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GUI

Object creation

• Click on a creation window to open it
• All interactions are handled with the mouse
• Escape closes the creation window

Object deletion

• Right click on a shape
• Press Delete