i see that. but there are different implementations of NURBS. So it doesn't mean that Gelato can import 3DM's OpenNurbs. Maybe Gelato only supports nurbs from Max/Maya with the direct plug-ins? Or maybe it also supports IGES nurbs?... I think i will have to just try it myself when i have a chance... Looks like a nice renderer though. With real displacement on pixel level, independent of surface topology!!! :)