template<bool bCalculateVisibility, bool bCalculateLODSignificance> float AccumulateCountInRuntimeData ( const [EMassLOD::Type](API\Plugins\MassLOD\EMassLOD__Type) LOD, const float ViewerDistanceSq, const bool bIsVisible, [FMassLODRuntimeData](API\Plugins\MassLOD\TMassLODCalculator\FMassLODRuntimeData) & Data ) const