Y-Phil posted at 10:36 AM Tue, 11 April 2023 - #4461722

Thalek posted at 8:31 AM Tue, 11 April 2023 - #4461693

Here is another example.
Using the Color_math, as I showed you:

And here is an example with the same black & white tattoo, but using a second layer:
Here, the tattoo picture serves as a filter: the white parts force to use the TransparentBSDF and the black parts force to use the Closure1, in this case whatever bitmap
but it could also be a simple color 

For a colored tattoo: simple get a copy turned to black & white and use both bitmaps accordingly
The second layer has one advantage: you may control the specularity of the skin independently of the the tattoo.

I did eventually verify that the chest tattoo was also rendering, but it was black and mostly rendering in the shadow from her head, effectively camouflaging it.

Thanks!  I hope to eventually convert all of Shana's Inked series into usable tattoos for Superfly, sans all of her Python scripts.  (Well, Volumes 1-10; when they started doing the Genesis figures, I dropped out.) It's a shame that second layers don't work in Firefly, as this would certainly simply the process for it, too.

Thanks again.