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I am trying to make a simulation where I have a container and it is getting filled with more rigid bodies (Soccerballs) falling from above. The container gets filled fine but when I try to animate the container itself from one location to another the contained Rigidbodies spill out from the containers sides ..

the soccerballs are relativly small in size, I don't know if this is the reason for the problem.

I have tried the following solutions but with no use, balls still spill out from the container.

1- I have changed the container collision shape sensitivity margin. 2- I have changed the balls collision shape(the problem got worse) 3- I have tried changing friction and bounciness of the balls

How can I solve this problem, what settings can I change that might help?

thanks in advance for your answers, I am sorry that the question got too long.

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  • $\begingroup$ I was able to solve the problem by slowing down the animation, I changed the movement of the container from 24 frames to 44 frames.. the problem was that the container is moving to fast.. I still want to know how to get the rigid bodies to stay contained while moving the container fast in the animation. $\endgroup$
    – Raymond Gabriel
    Commented Apr 11, 2019 at 12:06
  • $\begingroup$ Feel free to answer your own question and mark it as resolved as to help others with your problem $\endgroup$
    – Kirbinator
    Commented Apr 11, 2019 at 19:31

2 Answers 2

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Within the Scene properties are the Rigid Body World settings. This includes a Steps Per Second property. This setting determines how often blender should check the position of objects in the scene for how they should interact - faster moving objects require a larger number of steps to prevent them passing through each other before Blender detects the collision.

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  • $\begingroup$ Thanks Rich for your answer, unfortunately, I have tried the solution you have mentioned but it resulted in weird behavior from the rigid bodies. $\endgroup$
    – Raymond Gabriel
    Commented Apr 11, 2019 at 20:28
  • $\begingroup$ @RaymondGabriel Another thing to try is to ensure the Scale of your object is “applied” by selecting them, pressing Ctrl+A and selecting Scale. $\endgroup$
    – Rich Sedman
    Commented Apr 11, 2019 at 20:39
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I was able to complete the project without problem when I slowed down the movement of the rigid body container, I think that gave blender more time to be able to calculate the collision between the rigid bodies.

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