Hi, I can't find a solution to my problem.
I am just trying to bake some material infos in some textures, to optimize a scene.
Using GameDev simple baker, I have managed to get my normals and baseColor, but I tried and failed to export a texture with some specular roughness infos.
I can sort of make it work if I use a “classical shader”, s soon as I “collapse” it as a Material Builder, specrough values go to zero.

How can reliably export all the needed infos from a custom material builder ?

I am on Houdini 17.5, using mantra of course.