You can't have a 3D triangle with three points. Three points is a 2D triangle, you have just placed it in 3D, which is not supported. Either way see color() in the wiki <https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Transformations#color> . ----- Admin - PM me if you need anything, or if I've done something stupid... Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above. The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out! -- Sent from: http://forum.openscad.org/