Baking/Rendering simple Maps from shader tree ?

[BeneZ]

Hello,
I'm trying to get a simple single Diffuse und Roughness Map from the input used in a VrayMaterial - which has a complex node tree.

Which is the proper way to get a reduced single map? (not with lighting baked! just in order to replace the long tree with a single map).

When I try "render to texture" it renders with light (although "light" is disabled).

Thanks for help
(3dsMax 2022)

[gandhics]

Bake To Texture has "Material Input" that you can choose map slot to bake.
Or, you can BTT/RTT with VRayExtraTex.

[BeneZ]

Thanks, I got now a much simpler method which works really fast:

[Joelaff]

Yes, that works well if you don’t need render time processing, like AO or curvature, or lighting, etc.