Title says all. I just spent hours to create a nice 3D scene in ArcGIS Pro that contains underground infrastructure (from an IFC file) + realistic buildings and trees from rule packages. Now I want to share this all as a Web Scene and I was surprised to find that after the 'Analyze' step ArcGIS told me 3D Multipatch layers that are to be shared as a web scene only "At an absolute height" (using geometry z-values) is permitted.
What's the technical reason behind this?
In ArcGIS Pro it looks super nice with feature elevation set to "On Ground", yet it's not possible to share this on the web. The thing is: my buildings come from Openstreetmap building footprints that have been converted into 3D multipatch features with a CityEngine rule package. Those OSM building footprints don't have a z-value, nor have I a suitable DEM for this region. So is it possible to add z-values to my geometry from ESRI WorldElevation3D ground layer somehow? Because if I use "At an absolute height", half my buildings are submerged in the hills, since this is not a flat area.....