How to make objects to not able to cross each other?

How I can make one object not going inside the other? As if they would be real and not able to
mix with each other. I need the function that wouldn’t give me the ability to cross them.

Currently, there is no such function.

If you can elaborate on what exactly you’re trying to do, maybe someone can help more. But without much information you may not get workarounds on how to achieve what you want to.

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Thank you!
At least now I know that there is no of this functions