Does anyone have any good suggestions for creating frit pattern to glass? In other applications I have modeled a zero thickness surface that was set inside of the glass to replicate the second surface of an insulated glass panel and that surface has a transparency map with the dots or holes on it. I am not sure how I would approach this using revit. If I paint a material with the transparency map on either the inside or outside surface of my curtain panel, it won't render with proper refraction or reflection.