OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › IndicatorCuboid2D : Need extra Explanation › Reply To: IndicatorCuboid2D : Need extra Explanation December 21, 2020 at 11:30 am #5431 AdrianKeymaster Sure, fur functions that are not yet converted to using FunctorPtr arguments such as rename you can dereference the shared_ptr using the “*” operator: ` superGeometry.rename(4,1,*unified_box); `