it is a parameter dial when you start a new tile node. It has one for tile1 color and tile2 color. I think the the mortar setting is next but i have to open p5 for sure and dont have open right now...anyway thanks for your help ....anyone else got any suggestions???? About getting a shine off the tile. I've tried using the glossy node and the pfong node into the alt specular. Maybe it should plug into specular...anyway experiment experiment....that render takes a few though