I am trying to get a box to float into the air, fly in a direction and then midair activate physics so that it flies off and falls to the ground without me having to animate that. I tried keyframing the "animate" toggle so that it turns off, but when I do this, the box jumps back to its starting position, instead of continuing from where the animation left off. How do I enable physics mid-animation?enter image description here

  • $\begingroup$ Can you make sure that your object is an active rigid body and can you add a screenshot of your rigid body settings? Also have you tried baking the animation or are you only playing it back. $\endgroup$
    – Leander
    Apr 24 '19 at 8:14
  • $\begingroup$ Yes it is an active rigid body, no I'm just playing it back. What will baking the animation do? Would I do that before or after I keyframe the "animated" toggle? I've added a picture of my rigid body settings for the cube. Thank you! $\endgroup$
    – user73334
    Apr 24 '19 at 17:16
  • $\begingroup$ You might have an invalid cache. Try starting and cancelling a grab operation on the rigid body to reset the cache, then try again. If not, save and load and check behavior; if still a problem, link the file. $\endgroup$
    – Nathan
    Sep 30 '20 at 22:04

You need to change the simulation Start and End frames under Scene Properties > Rigid Body World > Cache.



At frame 0 put your object at its beginning location in the scene, press i > LocRotScale, enable the Animated option in the Physics panel and press i to keyframe it. At frame 10, move your object wherever you want, press i > LocRotScale, disable the Animated option in the Physics panel, press i to keyframe it.

  • $\begingroup$ Thank you, I'm doing this, but disabling "animation" under the rigid body settings causes the object to return to its starting point. Any idea why that might be happening? When I make a new simple animation, it seems to work how you have described, but when I try to keyframe the "animation" toggle on top of my existing animation for the cube, it jumps back to its starting position instead of falling from the sky. $\endgroup$
    – user73334
    Apr 24 '19 at 17:51
  • $\begingroup$ I don't think this answer describes what the OP wants. $\endgroup$
    – clankill3r
    Mar 19 at 21:37
  • $\begingroup$ @clankill3r, maybe I've misunderstood the initial question, maybe explain or give your own answer? $\endgroup$
    – moonboots
    Mar 20 at 3:54

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