Sphere Packing

Thanks,

Can you drop spheres of various radii into a container like this?

Then I’m looking to do something I did with circles, that is use gravity to sort sizes out - so that you are left with smaller bubbles (Spheres) at the bottom and larger at the top? (Or vice versa): In my ideal world, using attractor surfaces in the containers walls, so that you get a bunch of spheres that are larger toward the centre of the mass, and smaller at the surfaces? (then even further desired, the container is actually a complex collection of NURBS surfaces… or even a closed NURBS surface with point and line attractors pulling the various radii?)>

I don’t want for much? But an indication, of how far off Kangaroo is from this? Would be great info… I could then: Get on it…!". so to speak.

J