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Forked from VecGeom / VecGeom
573 commits behind the upstream repository.
Jonas Hahnfeld's avatar
Jonas Hahnfeld authored
All accesses and the related variables are already unsigned, make
the underlying data type match for consistency.
106c46a1
History

Introduction

VecGeom is a geometry modeller library with hit-detection features as needed by particle detector simulation at the LHC and beyond. It was incubated by a Geant-R&D initiative and the motivation to combine the code of Geant4 and ROOT/TGeo into a single, better maintainable piece of software within the EU-AIDA program. As such it is close in scope to TGeo and Geant4 geometry modellers.

Main features are:

  • Build a hierarchic detector geometry out of simple primitives and use it on the CPU or GPU(CUDA)
  • Calculate distances and other geometrical information
  • Collision detection and navigation in complex scenes
  • SIMD support in various flavours:
    1. True vector interfaces to primitives with SIMD acceleration when benefical
    2. SIMD acceleration of navigation through the use of special voxelization or bounding box hierarchies
  • Runtime specialization of objects to improve execution speed via a factory mechanism and use of C++ templates
  • VecGeom also compiles under CUDA
  • Few generic kernels serve many instanteations of various simple or vectored interfaces or the CUDA version.

For further information: