A gradient that can be used to create an effect like the shiny surface of satin or other shiny fabrics.
Starting with an object shaded as normal,

You can then apply this gradient with gradient maps to create a shiny effect like satin.

Using another gradient map on this new version can color it.
Here is a comparison between the original and the version that had the satin gradient applied, with the same color gradient map applied afterwards.


This is intended to be used as a starting point for shading/coloring, and I recommend editing manually after applying the gradient map to make sure it works on your object!