An experiment in position-based dynamics. The idea was to simulate a deformable object (soft body physics), not necessarily in a completely physically-rigorous way, but at least in a physically-plausible way. Emscripten build online here. Click and drag the Armadillo (it's glued to the ground) or click and drag anything else to change the camera position (middle button drag to zoom in/out).
No fancy build systems, just run make linux or make emscripten.
Building for Linux requires glfw, glew, AntTweakBar and optionally Assimp and CGAL.
glm, cereal and AntTweakBar headers are included in framework/external.
Emscripten 1.26.0 requires a tiny patch (see issue),
changing line 490 from
win.mousePosFunc = cbfun; to win.cursorPosFunc = cbfun;. Also, for reasons unknown, I had
to specify full path to Emscripten's libcxxapi/include. The path in makefile will need to be modified.
See makefile for more details.
Müller, M., Heidelberger, B., Hennix, M., & Ratcliff, J. (2006). Position Based Dynamics.
Bender, J., Müller, M., Otaduy, M. A., Teschner, M., & Macklin, M. (n.d.). A Survey on Position-Based Simulation Methods in Computer Graphics, M.
Bender, J., Koschier, D., Charrier, P., & Weber, D. (2014). Position-Based Simulation of Continuous Materials.
Matthias, M., & Gross, M. (n.d.). Interactive Virtual Materials.
Irving, G., Teran, J., & Fedkiw, R. (2004). Invertible Finite Elements For Robust Simulation of Large Deformation.
FEM Simulation of 3D Deformable Solids (SIGGRAPH 2012 Course): http://femdefo.org/
Wojtan, C. (2010). Animating Physical Phenomena with Embedded Surface Meshes
Tom Forsyth's Linear-Speed Vertex Cache Optimisation algorithm (implementation by Martin Storsjo)
Glenn Fiedler. Fix your timestep! http://gafferongames.com/game-physics/fix-your-timestep/
Compact Normal Storage: http://aras-p.info/texts/CompactNormalStorage.html
Stanford Armadillo: http://graphics.stanford.edu/data/3Dscanrep/ (decimated with MeshLab: http://meshlab.sourceforge.net/)