This is an implementation of the paper “A Hyperbolic Geometric Flow for Evolving Films and Foams” Ishida et al., Transactions on Graphics (SIGGRAPH Asia 2017).

[Project site]

[Youtube video]

Author: Sadashige Ishida
Lisence: BSD

Running the executables without command line arguments will display the usage. Data files are located in the hgf_assets folder.

[KEY SETTING]
Space: Turn on/off the clock.
s: Proceed one time step.

Slash: Turn on/off the scene specific update.
b: Burst a randomly chosen bubble.
l: Move constrained vertices to left.
r: Move constrained vertices to right.
+: Inflate a bubble.
-: Deflate a bubble.

m: Change rendering mode.
o: Save the state as files containing information of mesh, labels, and constrained vertices.
O: Save the state as above, but with ghost vertices and faces.
and etc.

This program is built by standard procedures using CMAKE (http://www.cmake.org). The following external libraries are required:
Eigen (http://eigen.tuxfamily.org)
OpenGL and GLUT (http://www.opengl.org/resources/libraries/glut/)
LAPACK (http://www.netlib.org/lapack/)
libigl (http://libigl.github.io/libigl/)

This program is built on SoapFilm3D, which is a simulation program accompanying the paper “Double Bubbles Sans Toil and Trouble: Discrete Circulation-Preserving Vortex Sheets for Soap Films and Foams”, Da et al., Transactions on Graphics (SIGGRAPH 2015).