This repository contains a research prototype implementation of the paper Inpainting Holes in Folded Fabric Meshes, Computers & Graphics.

The method proposes to fill holes in triangle mesh surfaces representing fabrics. The software allows the user to provide a mesh with a hole and to fill it.

The project requires CGAL to be installed on your computer. Instructions for installing CGAL can be found here. It also requires on geometry-central, polyscope and libIGL as well as a C++17 compiler. You can build the project as follows:

git clone --recurse-submodules https://github.com/g-gisbert/Inpainting-Holes-In-Folded-Fabric-Meshes
cd Inpainting-Holes-In-Folded-Fabric-Meshes
mkdir build
cd build
cmake ..
make -j8

You can run the app by issuing:

./bin/pgm <path/to/file>

If you want to run the teaser example, you can just type:

./bin/pgm ../data/sim1_hole.obj

You can edit the config.txt file to add colliding objects to constraint the optimization. You can use spheres or cylinders. Each row corresponds to one object. For spheres, you can add them as follows:

# sphere x y z radius
sphere 0 0.5 0 1.3

For cylinders, you must also specify the height and the three Euler angles that control the rotation.

# cylinder x y z radius height eulerX eulerY eulerZ
cylinder -3.65421 0.652517 0.0 1 6 0 -1.415462 0

By default, the sphere corresponding to the teaser is active. You can disable it by commenting the line with a '#' character at the beginning of the corresponding line.

Hold down the left mouse button and move the mouse to rotate. Right-click to move the camera.

In the right panel, you can set up the coefficients for each energy term in the minimization as well as the fixed time step. Then you can choose between two bending energies and enable or disable collisions. Finally, there are three buttons. 'Steps' will perform 2000 gradient descent steps, 'Toggle' will continuously optimize the mesh and 'Save Mesh' allows you to export the optimized mesh.

To reproduce the teaser example, just press the 'Steps' button.

Typical parameters you can use for the given examples.

For sim1_hole, make sure the following line is uncommented in config.txt:

sphere 0.0 0.5 0.0 0.509

For sim2_hole uncomment the three last lines:

cylinder -3.65421 0.652517 0.0 1 6 0 -1.415462 0
cylinder 0.114316 3.64177 0.0 1 6 0 -0.261799 0
sphere -0.660382 0.749638 0.0 1.0