Software raytracer written in C++

Utilizes SDL3 to handle window management, keyboard input etc.

Work in progress

Example: Blinn-Phong shading without and with normal maps

Installation (Linux)

Clone the repo wherever and then in the repository root:

cmake -B build
cmake --build build -j4

You will then find the binary in the build directory:

./build/raytracer

Keybinds

ESC to exit, WASD to move camera left/right/up/down, arrow keys to turn camera, RF to move forward/backward

Features

• Spheres and triangles
• A thread pool to distribute rendering to multiple threads
• Bounding volume hierarchy (BVH) to group objects in a scene to drastically cut ray intersection tests
• Shading uses Blinn-Phong reflection model
• Quaternions for camera rotations
• Textures and normal maps

Todo

• PBR approach
• Handle multiple lights
• Full SAH for BVH
• Scene files and parser
• Soft shadows
• GPU