I would like to apply rigid body physics to a grouped set of objects, but would not like that set of objects to be dismantled during the simulation (preserving their relative positions).

For example, imagine two spheres forming a "water molecule":

enter image description here

And I want to bounce such molecules in my simulation without breaking them apart. How do I go about doing that in Blender?


Join objects together. Select objects you want to join then press Ctrl+J.

  • $\begingroup$ This can actually work, but I'm looking for a solution which involves keeping the objects separate... $\endgroup$ – vmalloc May 16 '17 at 14:19

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