While searching the options how-to generate 3D tiles from 3D models stumbled at FME 2017.
Anyone try/test FME 2017 Cesium 3D Tiles Writer?
According to press release ( https://docs.safe.com/fme/html/FME_Desktop_Documentation/FME_ReadersWriters/cesium3dtiles/cesium3dtiles.htm ),
generating Cesium compatible 3D tiles with FMR 2017 should be straightforward process ( not cheap ofc, but relatively easy and fast ).
Another interesting option is “Cesium 3D Point Cloud Reader/Writer”.
Since good things ( bad also ), comes in three, also was looking for a quantized-mesh writer, but no luck so far,
according to FME - https://knowledge.safe.com/questions/23381/using-fme-to-create-quantized-mesh-tiles.html