I try to create a 3D pdf, which represent aerospace zones. They are mostly extruded polygons, which are lifted a bit off the ground. For offset and extrusion height values from attribute table are used. In ArcScene the zones look ok, but when I export them to 3D pdf, using the Quick Export tool, they get zero extrusion height and zero offset from ground. I tried to create a .3DS file - the same and also some other features, such as Export to CAD.