here's a 2d domino demo. domino I'm using the stepping mechanism from the paper Nonconvex Rigid Bodies with Stacking - Eran Guendelman, Robert Bridson and Ronald Fedkiw. Please supply me with any comments. I'm hoping to extent this to 3d after the 2d demo is more stable. many thanks to MrRowl and oliii and dave eberly [Edited by - Airo on January 2, 2005 1:50:53 PM]