Patch proposal: Tetrahedron support in btSoftBody::refine()

[lvezzaro]

I don't know what kind of process I should follow to submit a patch, so I decided to post both on the forum and on the issue tracker. Here is the link:

http://code.google.com/p/bullet/issues/detail?id=556

All the details are there, let me know if you could be interested in helping us implement this feature and get it integrated into the Bullet source.

Thanks,

Luca Vezzaro