I just tested this process on a multipatch feature class and the KML opened in Google Earth in 3D.
I'm trying to get my 3D ArcScene to export to KML files so I can see it in Google Earth as 3D. Does anyone know if this will even work? If I can get the KML's to show up as 3D, can you let me know what I could be doing wrong? Thanks in advance for any help.