Hi all,

Perhaps could you see this page github.com/schteppe/cannon.js
You could find a simple 3D physics engine for js with many samples like spheres falling.
During simulation, you could have the coords of spheres fallen.
I you find a script taking coords to place your spheres in MOI3D.

An idea perhaps to help you...

This idea could be used to place objects physically or narturally ?

Have fun !