I'd like to have a group of debris fall from a ceiling onto the floor, but not have them drop all at the same time. Is there a way to set a keyframe that dictates when the object enters the simulation? For example, object 1 starts falling on frame 0, object 2 on frame 5, object 3 on frame 24, etc.


1 Answer 1


Yes, you can keyframe the Animated checkbox by hovering over it and pressing I:

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When Animated is enabled, the rigid body will be controlled with the animation system. When it is disabled, the rigid body will be controlled by the rigid body simulator.

  • $\begingroup$ So can I set keyframes on this checkbox? Is that what you're suggesting? $\endgroup$
    – Justin
    Commented Apr 11, 2014 at 3:45
  • $\begingroup$ @Justin Yes. When it is enabled, the object will not be controlled by the physics simulator. $\endgroup$
    – gandalf3
    Commented Apr 11, 2014 at 6:09
  • $\begingroup$ How do you apply this to a large number of objects at the same keyframe? $\endgroup$
    – J Sargent
    Commented May 13, 2015 at 3:32
  • 1
    $\begingroup$ @NoviceInDisguise If the objects don't have any other conflicting keyframes, then Ctrl L > Animation data can be used to copy keyframes. $\endgroup$
    – gandalf3
    Commented May 13, 2015 at 6:40
  • $\begingroup$ Im wondering what the use is than, if its animated it does not habe the physics. How can we have both worlds or is this not possible? $\endgroup$ Commented Oct 28, 2015 at 0:34

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