Method getNumRays

tutorials/common/tutorial/tutorial.cpp:625–631

  }

  int64_t TutorialApplication::getNumRays()
  {
    int64_t numRays = 0;
    for (size_t i = 0; i < TaskScheduler::threadCount(); i++)
      numRays += g_stats[i].numRays;
    return numRays;
  }

  void TutorialApplication::renderToFile(const FileName& fileName)
  {