That is so very clever, Mark! It will indeed produce the effect I'm after for any object on which the side opposite the camera is flat, and can be adapted for any object whatsoever -- discounting slight inaccuracies created by perspective if I don't use an isometric camera and assuming I account for the addition of next object sides -- by splitting that object in half along a plane perpendicular to the direction to the camera. Great!!! Thanks, very much, Mark!