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File indexing completed on 2026-05-15 07:41:49
0001 #pragma once 0002 0003 #include <DDG4/Geant4Action.h> 0004 #include <DDG4/Geant4SteppingAction.h> 0005 #include <string> 0006 0007 namespace ddeicopticks 0008 { 0009 //---------------------------------------------------------------------------// 0010 /*! 0011 * DDG4 stepping action that intercepts standard Geant4 Cerenkov and 0012 * Scintillation processes and collects gensteps for GPU simulation. 0013 * 0014 * This follows the same approach as eic-opticks GPUCerenkov example: 0015 * use standard G4Cerenkov / G4Scintillation, then read back the photon 0016 * count via GetNumPhotons() and pack gensteps for the GPU. 0017 */ 0018 class OpticsSteppingAction final : public dd4hep::sim::Geant4SteppingAction 0019 { 0020 public: 0021 OpticsSteppingAction(dd4hep::sim::Geant4Context *ctxt, std::string const &name); 0022 0023 void operator()(const G4Step *step, G4SteppingManager *mgr) final; 0024 0025 protected: 0026 DDG4_DEFINE_ACTION_CONSTRUCTORS(OpticsSteppingAction); 0027 ~OpticsSteppingAction() final; 0028 0029 private: 0030 int verbose_{0}; 0031 }; 0032 0033 //---------------------------------------------------------------------------// 0034 } // namespace ddeicopticks
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