I have a 3D building model (Polygon ZM) that I would like to turn to DEM, following the accepted answer to Elevation data from 3D shapefile of buildings to raster DEM
According to the description, Polygon ZM should be first converted to TIN before I could convert it to raster.
For some reason, converting Polygon ZM to TIN leads to error so I did an additional step "Feature vertices to points" (1st image) before "Create TIN". This way I can produce a TIN (2nd image) but it is not quite similar to the original Polygon ZM. Any ideas how could I make the TIN more accurate?