BulletSOP 2.0 - Introduction: https://vimeo.com/67030933 BulletSOP is implementation of Bullet library (bulletphysics.org) inside SideFx Houdini (sidefx.com). It's a plugin for creating incredibly large rigid body simulations on average PC. At this moment it's single-thread application (we're waiting for official release of Bullet Library 3.0 with GPU support) but speed is very impressive already. As well as memory footprint. The plugin is free! So you can create truly stunning massive simu