A 3D object scene layer represents objects such as buildings that are explicitly modeled in three dimensions. A 3D object scene layer is created from a multipatch feature class in ArcGIS Pro.
Work with geoprocessing tools
3D object scene layers are not supported as inputs to any geoprocessing tools except the Validate Scene Layer Package geoprocessing tool.
The 3D object scene layer can be published as a service layer and uploaded to Portal for ArcGIS or ArcGIS Online using the Share Package geoprocessing tool.