“Portrait of a silent man ” by Patrick Eischen
The skin shader
Now comes the hardest part: setting up the skin shader. For this image I used the Vreel Skin Shader, a plug-in shader for Cinema 4D that allows you to set up different layers of skin and which also includes a SSS effect. It is possible to setup parameters for secularity, surface and translucent. The shader is loaded in the Luminance channel.
As you can see on the left picture, most of the texture has been ‘overwritten’ by the shader. That’s because I only loaded a color map in this test render. In the right picture I used an epidermal map and a subdermal map mixed together with a weight map. All maps are modified versions of the original color map.
This is how the luminance channel looked like after loading the different maps. The default color map is loaded into the standard Cinema Color channel.
I think the default c4d color channel is much easier to set up, so that’s why I left ‘Calculate Surface Shading’ blank. I used ‘Calculate Specularity’ to create an even amount of overall brilliance in the skin (see picture below). The standard C4D specularity channel has been used to create nice sharp specs on the edges (e.g. the lips and on the nose). Both specularity channels have been restricted to a map.
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