Implementation of Le, Hodgins 2016 paper Real-time Skeletal Skinning with Optimized Centers of Rotation https://www.disneyresearch.com/publication/skinning-with-optimized-cors/
Requires glm, assimp, glfw3, fmt. On MacOSX with homebrew and cmake 3.5+ installed:
brew install glm fmt assimp glfw3
ccmake .
make
./testOptimizedCentersOfRotation