Only a little bit. Those control SSS effects, when a strong light source penetrates the surface of a semi/fully-translucent object. For example when there is a strong light source close to our ear.

Thank you!! And I also wondered if you play with Transmitted Measurement Distance/Scattering measurement Distance values.

I still use a vein map in the translucency layer. This is a mostly white-ish map with dark vein lines. I use the vein map from old Eva 7. I like using a vein map because it helps me get more shade variation on the skin.

I don’t really use “Share glossy Inputs”. From the description, it affects back-scattering and refraction, so more advanced lighting effects.
http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/interface/panes/surfaces/shaders/iray_uber_shader/shader_general_concepts/start

May I add to this question if it’s better to use the diffuse map for transludency or is it better to change it a bit? Even add some veins? What do you think is “better”?
Of course, I guess it’s mostly a matter of taste, but I’d like your opinion!

Bonus question : what is this “Share glossy Inputs” option? I have it “on” for lips and “off” on face and ears as default, tried to change it but haven’t really noticed a difference… So I’m wondering if you know.

Thank you in advance!!! 🙂

Ela~

Great! Thank you for the instruction and inspiration. Love your work!

Yes, that is exactly right. I render multiple versions of the same image and then combine them in Photoshop.

Hello Mark, Are you using the diffuse map in the translucency layer? If so, the difference will not be as dramatic, although I think it will still increase the SSS effects. I use a vein map in the translucency layer, which makes some things more complicated but it also allows for more different effects. When Iray was first introduced, most skins used a vein map, but I think for ease of use, now most skins use a diffuse map.

I click on the figure, then do File > Save As > Material Preset. 🙂