Hi, I can't find a way to get what I can get with a colored specular map in Substance Designer. I'm basically trying to get a fake iridescent effect by coloring my specular map, but in the principled shader, the specular is a float type, so no way to put some colors in there..
In the past I was on Maya with Renderman and there was a specular and an edge color parameter, in wich I was able to put some color, but no parameter is a color in the principled color.
I'll put some screenshot of the desired look I want. It's done in Substance designer, with a black diffuse, a normal, a white specular and the colored map in the specular edge color.
It'll be used in a movie project for my school so I really hope to get some help , please help !