Implementation of "Position Based Elastic Rods" paper
(http://www.nobuyuki-umetani.com/PositionBasedElasticRod/2014_sca_PositionBasedElasticRod.html)
for Position Based Dynamics library (https://github.com/InteractiveComputerGraphics/PositionBasedDynamics):

The code is based on the implementation of 

Przemyslaw Korzeniowski
Department of Surgery and Cancer
Imperial College London

http://github.com/korzen/PositionBasedDynamics-ElasticRod
korzenio [at] gmail.com