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If I apply Rigid Body physics to objects in a collection, and then duplicate the collection:

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The objects in that collection have the RB operator, but are not added to the RB World, even if I then Remove and reapply RB. These objects don't participate in the RB simulation.

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in the same way as if I duplicate objects within a collection and then move them to another collection.

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  1. Is there a reason for this exclusion of RBW Collection during the Duplicate Collection operation?
  2. How can I coax my new, duplicated collection to be part of RBW, especially if I have several objects and want to avoid python scripting. I am sometimes able to add an object to RBW, but I have to either copy/paste the name from the Scene, an it sometimes fights me by creating a RBW.001 where some objects are still not included.

Here's an example

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1 Answer 1

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The reason for this is the "invisible" RigidBodyWorld collection, which you can find here:

enter image description here

You have to add this collection to your objects (RigidBodyWorld) of your new collection, then it works.

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