A simulation engine for Roper, Soft-Bodies, Cloth, Semi Rigid Bodies and more for maxon Cinema 4D.
The plugin it self is Not Open Source.
Flex Solver: new GPU bases solver. Current builds requires GPU with DirectX 11 support.
Classic Solver: my own mostly position bases solver that I have developed years ago. In 2020 it got some updated to make it use CPU cores a bit more efficient, but there is still room for improvements.