bagginsbill posted at 10:32AM Wed, 13 January 2021 - #4348768

operaguy posted at 9:12AM Mon, 25 March 2019 - #4348633

I guess BB's post adds up to "deploy the diffuse map and drive roughness, glint, wetness and height with procedural." Is that correct?

No, I certainly used the bump map and it is the key to the realism. What I didn't use or bother with (and never have, on skin) is a specular or roughness map. IMO the specularity differences are minute, and the roughness differences are not mandatory nor desirable. Oily skin areas are something people avoid and use makeup to eliminate when doing portrait photography.

Here is a specular-only render, showing the super-important contribution of the bump map.

This bump map is decidedly NOTHING to do with a derivative of the diffuse color map, and it is why the results are so fantastic. Bump is like the #1 thing. Color is important but far less important, and roughness (modulation) is not important at all, as far as I can tell.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)