I'm trying to convert a TSurf into  polygons shapefile (got this part) and  a multipatch.
I tried Layer3DToFeatureClass_3d, but I don't have the license for it. Is there a viable alternative?
I'm working in ArcGIS and would prefer to write this up as a tool using ArcPy.
Worst case scenario, I would have to consider doing this in QGIS. If I do QGIS, is there a ready-to-go plug-in that converts TSurfs to polygons SHP and multipatch?