How to “properly” use: Specular, Glossy, Roughness & Reflection maps

Hey Blender Fans!!

This seems like a total Noob question, but I’m aiming for “proper” use with the Principaled shader.

And yes I know that this also depends on what shader workflow you are going to use (Specular vs Metalness) -

This because a while back I found out that for photo realistic results in general you should leave the “specular” slider set to 0,5. since this also involes IOR (1.5 for most dialectic materials).

I think that for the most part u can get away connecting these maps to the “Roughnes” slot on the prinipaled shader and maybe adding a ColorRamp shader for more control or reverse when needed.

That said, in allot of tutorials they show to just stick specular maps in the specular slot. I’m guessing this would over wright the correct setting of 1.5.

So my question is how to properly use these textures with the Principaled Shader (Specificly specular Maps).

I also posted this question in BlenderArtist.org : blenderartists.org/t/how-to-properly-use-specular-glossy-roughness-reflection-maps/1228747