In this free video tutorial,  Manuel explains packed primitives and how to dynamically scale bullet objects at simulation time in Houdini.

Project can be downloaded here 



Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini

Scaling bullet solver Houdini