|  | Although 
              this tool was initially developed for falling buildings and prop 
              destruction we soon found that, with some tweaks, it could be used 
              to skin complex systems of objects that were previously animated 
              in a hierarchy with controllers. A flock of pigeons with a fair 
              number of birds could be set up to be rendered in one draw call, 
              with all the verts weighted at full strength. |  |