This repository contains the source code of the paper "Robust Discrete Differential Operators for Wild Geometry" by Wagner and Botsch.

Please clone this repository recursively, as it uses submodules:

git clone --recursive git@github.com:sdwagner/wildDDG.git

While this repository includes nearly all geometry processing libraries as submodules, CGAL needs to be installed manually via, e.g., vcpkg, apt-get, or homebrew. This should already include installations of MPFR, GMP, and Boost, which are also necessary to build this program.

Building the program is then just:

cd wildDDG && mkdir build && cmake .. && make -j

This should build all the necessary targets and dependencies.

Finally, you can start the demo by running

./surface_viewer

If you want to use a specific mesh, you can just drag and drop it into the window.

The different benchmarks can be run using the following commands

./tri_tests
./unstructured_tri_tests
./poly_tests

Running the benchmark on Thingi10k first requires you to follow the instructions in scripts/filter_thingi10k.ipynb, after which you can start the benchmark with

./thingi10k_tests

@inproceedings{wagner2025robust,
    author = {Wagner, Sven D. and Botsch, Mario},
    title = {{Robust Discrete Differential Operators for Wild Geometry}},
    booktitle = {Vision, Modeling, and Visualization},
    editor = {Egger, Bernhard and G{\"u}nther, Tobias},
    year = {2025},
    publisher = {The Eurographics Association}
}