Houdini 14 RBD sim | Bullet Solver | Packed RBD objects. After saving .sim cache to disk, I wrote out .bgeo, unpacked, then added subdivisions/ bevel/ materials to geometry. In nuke: color correct, grade, white constant background, re-time (added frames to slow motion). The plastic colored boxes have same parameters in DOP network for both scenes. The Jenga blocks density and friction increase in 2nd scene to show weight difference between plastic block and steel block.