I am trying to make a scene where a softbody cube falls into a long spinning rectangular rigid mesh, but it turns out that both doesn't interact with each other as the cube just falls through and ignores the movement of the animated mesh.

I know for a fact that softbody can interact with rigid body because the softbody cube falls into a plane that has a rigid body property, but apparently it doesn't work when the rigid body has animation.

I looked up on YouTube for this but found nothing.

  • $\begingroup$ You "know for a fact" that soft bodies can interact with rigid bodies? Yes, they can - but not by default, only if the rigid body object has a Collision modifier. And then it works no matter if animated or not, as the answer from @Chris shows. $\endgroup$ Feb 6 at 9:02

1 Answer 1


Just give your rigid body a collision modifier, and it works:

enter image description here

  • $\begingroup$ I literally asked openai how to add collision modifier to a rigid body, thanks for the info anyways $\endgroup$
    – KD_
    Feb 6 at 10:40
  • $\begingroup$ @KD_ Well, as Ray commented on a different question a few days ago: "First - I would strongly recommend against using ChatGPT as a general knowledge engine. It has frequently been shown to provide confident, totally incorrect answers." ChatGPT had given (-3, -3, 3) as the dot product of (3, 0, 0) and (0, 0, 1), which is utter nonsense. $\endgroup$ Feb 6 at 11:22

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.