I'm having some trouble importing Multipatch data from ArcScene into CityEngine. I'm using Esri CityEngine 2011.1 build 1021 (trial, win32-64bit).
I used "Layer 3D to Feature Class" in ArcScene to create multipatch data from polygons with height data. When I import the Multipatch data into CityEngine, it instead shows me 2D polygons. When I run a simple extrusion based on the height attributes, the buildings extrude DOWNWARD. (I can tell CityEngine to extrude NEGATIVE heights and then the appear above the surface, but they're shaded unequally!)
If anyone has any advice or can point me in the right direction with further documentation, that would be much appreciated!