Thanks caisson, bb, deecey, and bantha

However ...

I am out of my league here. I don't know what a "Physical Surface Node" is, so while the advanced people here are supplying deep information about roughness, but I'll just sit back and bookmark and perhaps review when I get more experienced.

Here's my reality: I am getting fine results with the "Lana" maps from DAZ, the diffuse and bump. Apparently, DAZ made the Lana bump map with some variant of the discussion here.

My renders are in this thread high above.

When I want to tweak, I just adjust the bump amount on the PoserSurrface, and the specular setting on it the attached map. Also the SSS and the intensity and kind for the lights. Thank you Snarly.

I am hoping to find out how to make bump maps of high quality, or purchase them, some of which has been spelled out here so far. Thanks for the links to purchasable maps.

::::: Opera :::::