Today on December the 20th of 2011 we successfully released the first public build of AlternativaPhysics engine. The technology is provided as SWC-library. You can use it free of charge even in commercial projects, but it is required to put a link to alternativaplatform.com in your project.
AlternativaPhysics is a library for simulation of physics interaction of different bodies. It allows you to work with different geometric shapes and it is integrated with Alternativa3D for easy and convenient usage.
AlternativaPhysics features
Improved stability
Stability of different complex structures (stack, pyramid and others).
Constraints
Maximum distance
Fixed distance
Ball-in-socket joint
Hinge joint
A wide variety of geometric shapes
Triangle, rectangle
Box, sphere
Cone, frustum, cylinder
Convex polyhedron
Hierarchical primitive
Triangular mesh
High performance
The engine is optimized for AS3.
Integration with Alternativa3D
Integration of graphical and physical representations in one object. Automatic updating of the physical scenes and images.
Native event system
Try AlternativaPhysics and tell what you think!

Launch demo
Download AlternativaPhysics
Read documentation
Check tutorials
Discuss AlternativaPhysics in official forum