erwincoumans/experiments — Issue #4: Add improved constraint solver (direct/Danztig, 
Author: erwincoumans
Created: 2011-11-01 16:22:35+00:00
State: open

Original Bullet 2.x issue is here: http://code.google.com/p/bullet/issues/detail?id=152

See also the work by Kenny Erleben on mixing PGS and Conjugent Gradient

http://iphys.wordpress.com/2010/06/08/a-nonsmooth-nonlinear-conjugate-gradient-method-for-interactive-contact-force-problems/
http://code.google.com/p/jinngine/

And Jeff Trinkle work
http://www.cs.rpi.edu/~nguyeb2/dVC3d