This repository is a from-scratch implementation of a pathtracer, along with an implementation of the paper "StyLit: Illumination-Guided Example-Based Stylization of 3D Renderings" by Fišer et al.
The above image illustrates the subject of the paper : given a simple render of a glossy ball (top-left), and a stylized version of it that was drawn by hand (top-right), the algorithm is able to synthesize a stylized version of any render (bottom row). For more detail, see my full report.
SDL must be installed (sudo apt install libsdl2-dev on a Debian-based distro). All other dependencies are included
mkdir build
cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
make -j
The above creates two executables : renderer and stylit.
renderer operates on a .toml scene file (examples are provided in the scenes directory) :
# Simplest command :
./build/renderer scenes/scene0.toml
# With options :
./build/renderer -w 1024 -h 1024 -s 1000 -o scene0_1000samples scenes/scene0.toml "L*E" "LDE" "L*DDE"
stylit works on .png image files (examples are provided in the stylit-tests directory), which must all have the same size. Unfiltered images must also have the same channel count.
# Single channel image :
./build/stylit source_unfiltered.png , source_filtered.png , target_unfiltered.png , target_output.png
# Multi-channel image :
./build/stylit su1.png su2.png su3.png su4.png , sf.png , tu1.png tu2.png tu3.png tu4.png , tf.png
# Options :
./build/stylit su1.png su2.png su3.png su4.png , sf.png , tu1.png tu2.png tu3.png tu4.png , tf.png --levels 6 --kappa 1 --epsilon 10