Using world-aligned textures for roofs

LR — Sun, 12 Dec 2021 05:38:14 GMT

I usually texture my roofs with the following rule, which textures them all using the basemap:

RoofTextureFromBasemap --> 
  setupProjection(0, world.xz, Map_Size_X, Map_Size_Z) 
  set(material.colormap, Map_Path_Aerial)
  projectUV(0) 
  translateUV(0, -Map_Offset_X/Map_Size_X, -Map_Offset_Z/Map_Size_Z) 
  scaleUV(0,1,-1)

However I need to use the buildings in ArcGIS Pro and it's causing some trouble:

leaving the rule as-is/exporting it as RPK doesn't texture roofs properly in AGP - the offset and resolution seem to be off
exporting the buildings in Collada Format and importing them in AGP removes the textures
exporting a building to KML works and displays (flipped) in Google Earth, however AGP simply tells me the file "cannot be used" without additional info. It's also rather large.
exporting them to GDB (multipatch) and importing them in AGP works, however the file size ends up huge - roughly 100 buildings result in almost 5GB, which I'm pretty sure is due to the basemap being saved completely for each feature

Now to the actual question

I clipped the basemap in ArcMap using the building footprints (see attached image) and would like to texture the roofs using the world-aligned clippings. I think I went through all possible projection setups and scope aligning available, is it even possible to use the textures this way?

topic Using world-aligned textures for roofs in ArcGIS CityEngine Questions

Using world-aligned textures for roofs