How to make physics deterministic?

[eigu47]

Hello. I am trying to make a online pool game but i can't recreate the same shot with identical force and initial positions so both clients ends up desynchronizing.

Here i tried to recreate the situation. Click on white ball to shot with a fixed force and any other ball to reset positions.

https://codesandbox.io/embed/testing-pool-table-f03hdo

I don't understand if im doing something wrong or the engine is not deterministic.

[Ibby-debug]

Did you end up figuring out how to make each run similar