My physics animation is working as expected while I'm inside Blender. When I try to render the animation, the simulation is not running. Every frame is identical (the objects are static).


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blender file

  • 1
    $\begingroup$ Could you perhaps elaborate on your setup, or post some screenshots or even a .blend file so users have a better chance to help you? $\endgroup$ Jul 15, 2020 at 14:15
  • $\begingroup$ please use Blend-Exchange for uploading blend files. Thanks $\endgroup$
    – Timaroberts
    Jul 15, 2020 at 15:40
  • $\begingroup$ @Timaroberts thank you for the heads up! $\endgroup$
    – chumpain
    Jul 15, 2020 at 15:44
  • $\begingroup$ It's not clear what's yours final objective. In your blend file the objects are moving.. $\endgroup$
    – Sanbaldo
    Jul 15, 2020 at 20:52
  • $\begingroup$ @Sanbaldo i'm trying to export it into an mp4 video, but the pieces won't move $\endgroup$
    – chumpain
    Jul 16, 2020 at 6:05

1 Answer 1


You need to cache the physic animation:

  1. Go to Scene Properties.
  2. Go to Rigid Body World.
  3. Under Cache, delete all bakes and then click on Bake All Dynamics.
  4. You can now render your video.

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