LogInA set of realistic textures from Allegorithmic and Texturing XYZ.
For scanning a person, age is my main criteria. The cross polarization technique then allows for suppression of specular reflections from a subject directly from the picture, without any post-processing.
The key for skin texture acquisition is the environment. Pictures must be taken without ambient, with a controlled lighting. For example, outside you would have a bluish ambient. That’s why I created my studios where I can truly control lighting and especially bounced lights.
More specifically for skins, there is a very important notion of the volume and strength of the light used. As human beings, we constantly move, we’re never immobile, and our heart beats, making our blood moves just beneath our skin. It’s thus crucial to take pictures at a very high speed in order to avoid motion blur.