Hi all, I have asked the same question on sidefx forum .... but no one respond to it.... I have a copy SOP with a stamp attribute. And I have a COP network with a font. I want to make a stamp expression on this font node. I used this expression with back tick: `stamp("../../../obj/sphere_object1/copy1", "POSX",0)` I used this COP output as Color Map for my material! But the stamp expression passes only the "0" to the material!?!? What is wrong with my expression? Thanks Nico StampToCOP.hipnc