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Forum: Fast Simulation, Transportation & Others
Re: Question G4PhantomParameterisation and parallel world problem (Mathieu Plamondon)
Date: 06 Nov, 2012
From: Pedro Arce <Pedro Arce>

This is indeed the expected behaviour. G4RegularNavigation fills G4RegularNavigationHelper::theStepLengths without really navigating the geometry, but instead using a fast algorithm to divide the total step length among the voxels. It it had to interrogate the parallel geometry to get intersections with parallel world volumes, all the speed gain would be lost. Anyhow, you can always set G4PhantomParameterisation::SetSkipEqualMaterials(0) and you will only get a step per volume crossed (real or parallel).

Pedro

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