-I`ve got many questions about the hair.
Again, I tend to think like traditional, punching those hairs into a silicone head so I do it by hand, without plugins or scripts. It looks like would take forever to finish but you can place them faster than you think. Also, MUCH quicker than one by one with a needle.
Having many variations as possible is key here. Also, single hairs black or white tend to make things pop as they contrast with the others.
I paint my alpha cards on photoshop, duplicate it, boost the lightness and then copy to the alpha channel. Export them as TGA 32bits and you are ready to go.
I place them inside 3ds max and constantly check rendering and going to marmoset on my pre-set lighting studio. Color, specular and shadows tend to vary in these conditions so I`d do the hair by the end of the project.
If you are familiar with 3ds max, I use the bend and twist modifier to help me create directions for different hairs. I also use the layer system so I have more control for later adjustments.
For the difuse of those hairs, I use just a plain gradient or the painted hairs. It`ll depend on the color and varitions/limitations I`m going for.
-Regarding the skin shader and marmoset rendering, no big deal.
Just playing with those values, always using real photo reference.
I find myself setting the shader using only the sky light and then tweaking with the lights on. I have a gloss map, normal map, normal detail map (generic noise), translucency map, and a cavity map to help me breaking the spec.
If you have any questions about the shader, let me know. Those values can vary from different scales and light conditions.
-The leather jacket was also a skin shader based material. The Subdermis Scatter helps to break down the shadows a bit and also give more of the leather look to it.
I`ve extracted the normals from zbrush, generated a generic noise to use as a detail normal map, painted some gloss based on the cavity extracted from zbrush.
The difuse/Albedo was painted in zbrush and tweaked in photoshop. I also painted some black and white masks in zbrush to create variations on difuse and reflection.
That`s it. Hope it helps you to understand a bit my process.
Feel free to add or comment below. I`d love to hear your thoughts.