So I am creating a game, currently in development for Unity3D using Autodesk 3D Studio Max, and have the main character fully modeled, fully texture mapped but has no textures created yet, is currently being rigged but I have one issue. Despite other issues I am having with complex body parts like the shoulders, arms/hands, thighs and knee areas I wish to understand how to go about having the breasts move around and bounce with no preset animation but entirely physics based depending on movement. My character has around 3,400-ish polygons for the poly limit and I wish to know how to go about making them movable realistically (to avoid a mature mark) and exaggeratively (primarily targeted towards lesbians and men) Would I have to go about making this possible within 3D Studio Max or Unity3D? On the other hand, I have bones already setup for the breasts exclusively. I am using Max 2010 and the latest Unity3. My other question is about hair, how do I make it dynamic and not poke through any polygons or parts of the mesh for the main character? My preference is to make no animations but to have the hair use as less resources as possible, any alternatives are okay too. Any help please?