This thread is huge. Maybe we should stop using it, and start doing individual threads on individual topics? That way we could bookmark and search them much more easily.

While I think it's cool to have the largest thread ever at Rendo, it may have gone beyond its usefulness.

The lipstick trick can be done with a mask or with a separate rule. I prefer the mask.

The "Tint" input is multiplied with the skin color. It is handy for certain effects, but unable to do certain others. In particular, you could not "tint" the lips to be white very easily, unless you used hyper-colors (colors with RGB components bigger than 1) (I just made up that hyphenated word but it's a useful concept. Also hypo-color - a color with an RGB component less than 0)

Would you like to see how I used the GND4 lip mask to do shiny  lipstick with extra bump?

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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)