convincing texture comprises of three
Diffuse channel gives the general
color of the material.
The Bump channel, which gives a relief
Finally the Specular channel or Glossiness
to vary the way in which the texture
reacts to light.
the case of the skin texture procedural
we quite simply will copy the Diffuse
channel into the Bump and Specular.
makes it possible automatically to
reflect the modifications made to
Diffuse towards Bump and Specular