I have several boxes in the list, then I rotated them, give them a union tool ,but after union , I can only see the wires of the result , why ? After that , the next tools result cant see the surface too, Scale UV even cant see anything....here are the snapshot pictures http://grasshopper3d.googlegroups.com/web/view+p1.jpg?gda=JeNeTz0AAAC19Ve3i4OoV9kZmG4Q4msc65_Let8b67Yi7PwhdLs9oSPJsLoHlI6phvmVPzj_sYLlNv--OykrTYJH3lVGu2Z5&gsc=RfEx7AsAAAB8-GBX6qZ5W-kw-Odjd3Nv
http://grasshopper3d.googlegroups.com/web/view+p2.jpg?gda=-k7nFT0AAAC19Ve3i4OoV9kZmG4Q4msc65_Let8b67Yi7PwhdLs9ocHRZ5FyOlliAu-QeZZnk27lNv--OykrTYJH3lVGu2Z5&gsc=RfEx7AsAAAB8-GBX6qZ5W-kw-Odjd3Nv
