Is this even possible in vvvv?
see the math-
Although not 3d - I like how the black and white background informs the circle packing structure
on this video.
any ideas, advice, comments?
look at the dottore userpage, there is an old module
check this, maybe this will help you
looking at it, it seems like a place to start.
otherwise try with box2d, see: physics
and of course you can always implement any algorithm as a plugin.