This is a simple circle / sphere packing scene. It is very simple, suitable for beginners to dissect and fool around with.
For now, if you change some param, like Repel and you see the BLUE cached frames on the timeline hasn't been cleared out...then you have to click the Reset Sim button on the Solver node....yeah tiny PIA...hence my question below...
(Does anyone know how to create a button in Param Editor to push the Reset Sim button in the solver ?)
vu_SimplePacking.hipnc