Hi LaoyeChan, you could do it with RhinoScript. It's possible to make the material with Grasshopper (see: http://groups.google.com/group/grasshopper3d/web/t_gradient.png ), but you cannot bake it yet.
-- David Rutten da...@mcneel.com Robert McNeel & Associates On May 4, 7:32 am, LaoyeChan <qianc...@gmail.com> wrote: > hello there, > suppose i have 100 faces here marked no.1 to no.100, i'd like to set > their transparancy 1% to !00%,matching their no.,can i get it done > with grasshopper or rhinoscript? thank you:D