Extrude building between 2 polygons

[MariyaIvanova]

Hi 🙂
I started working with CityEngine recently and I have a question about extruding building hight. So far I found only extrudion based on a hight attribute (field).
What I have however are 2 layers of polygons for building footprint and roof (flat roofs).
Is there any way to extrude buildings between them?

Thanks!

[JoanneO_Brien]

I suspect you'll run into a lot of issues doing things with two polygons as they would have to have seperate start rules applied to them etc, it would be simpler if you calculated the distance between them using ArcGIS and add this as a height field into your attributes table then when you extrude the building you can extrude by this and just add the roof ontop of your building.