Good afternoon everyone.
I'm happy to distribute Bounce, a lightweight and portable 3D physics engine for games.
Bounc3 is available at GitHub.
https://github.com/irlanrobson/Bounce
Some of the physics engine features can be seen at the basic (.pdf) documentation, living inside the repository. Additionaly, a demo application lives inside the repository as well.
Cheers,
Irlan R.