operaguy posted at 9:30PM Fri, 15 March 2019 - #4348087

Checing the manual, I'm finding "some" information about those nodes....

Sam Therapy, I'm not saying you are wrong, and I'm not saying that BB does not know the deep truth, but just for the record, the Poser manual suggests the desaturated/inverted diffuse map for a bump!

::::: Opera :::::

There's a long standing tradition of stuff being odd, badly worded or just plain wrong in the Poser manual, even in many of the supplied materials and their suggested uses. This is just one example.

The thing is, you can make a bump map from a desaturated image map but it won't be correct. It's how many vendors here and at DAZ have done it over the years. Doesn't mean it's the right way to do it, though. Still, if you're happy with indented navels, nipples, freckles and every other bit of skin that's darker than the surrounding area, or raised parts where the skin is lighter, then go for it.

The key thing to remember is, the underlying bumps, lumps and erm, texture of a skin bears absolutely no relation to the colour values represented in a diffuse map. Taking that into account, how the heck can you ever expect a bump map derived from such a source to be valid? Sure, you'll get bumps, which to some people, is all that matters but if you want to get as close to realism as possible, you'll avoid this method entirely.

Coppula eam se non posit acceptera jocularum.

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