|Message: Re: Can parallel-world steps be accessed from mass-world step or process?||Not Logged In (login)|
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So-called "Hyper-step" might do it.
This static method returns a thread-local G4Step object that contains two G4StepPoing objects that potentially belong to different worlds. If a step is limited by a boundary of world-A, post-step-point of this hyper-step is identical to the post-step-point of G4Step of world-A. You can also get the Navigation ID (index of the world, mass world is zero) that limits the step by this static method.
Please note that these methods work only for PostStepDoIt. You may want to consult to G4OpBoundaryProcess to see how optical boundary process handles a volume surface that is made of two different worlds.
Hope this helps,
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