Human Subsurface Scattering Material
Sub surface scattering is an important effect of light in 3D computer graphics where light penetrates a material and internally scatters at irregular angles. The scattered light then exists the material at different points simulating real world effects for various materials such as skin, wax, and milk. I sought out to create a realistic material utilizing subsurface scattering to create photo-realistic human skin.
Breakdown
I started off using a 3D scan of Lee Perry-Smith's head and began my material by adjusting the color and sub surface scattering effects. After adjusting the head in Zbrush, I generated displacement maps to add an extra layer of surface details in the skin such as pores, wrinkles, and facial hair.
I played with different focal lengths for my camera to determine how to best present my material. On the left is a 35mm and on the right is 65mm.
Various layers were rendered to make post production adjustments simple. Layers included diffuse, direct specular, indirect specular, depth, and more.
Finally, all layers were composed in Photoshop where the last touches were done.
