Houdini Arnold "Standard Surface" node. It has inputs for specular as follows: * Specular - Influences brightness of spec* Specular color - defines color of specularity* Specular roughness - controlls glosines / roughness of the mesh* Specular IOR* Specular Anistropy* Specular rotatation In my case i have one spec map that dictates over all object specularity (i use specular_roughness to dictate that specularity. But i now need to plug in also secondary specular map for lips and one for oili areas of model. So that is 2 extra specularity maps. But i have no clue how to connect the secondary map and have separate controls for roughness and specularity for it. Can someone assist what node to use?