Small step XPBD implementation of incompressible FEM. Neo-Hookean and Yeoh energy functions.
Web demo: https://jak-xyz.github.io/xpbd-fem/ Devlog: https://pybullet.org/Bullet/phpBB3/viewtopic.php?f=4&t=13264&sid=f7f591f6cb991aa7e32cac52a23f0e67