ptrt

A simple path-tracing ray-tracer

Building

You will need meson + ninja:

pip3 install --upgrade meson
pip3 install --upgrade ninja

You will also need OpenMP + Nlohmann-JSON:

# Debian based distros:
sudo apt install libomp-dev nlohmann-json-dev
# Arch based distros:
sudo pacman -Sy openmp nlohmann-json
# Fedora based distros:
sudo dnf install libomp-devel json-devel

To build use the following commands:

cd ptrt # root of the project
meson builddir
cd builddir
ninja

To run the compiled program:

./ptrt standalone /path/to/scene.json

Sample output

Credits

Almost all calculation related code comes from these amazing books from Peter Shirley but I have added a few optimizations and parallelization to make it run faster.