I'm trying to find a good silk-hosiery tex.  Probably could set it up as an image, but it would be a really 'heavy' JPG.

This picture shows the best I can get from applying the Noise node
to Bump.  It's fairly good, but seems too random.  Seems that the just-right
solution would be a node that makes dots, same as Noise, 
but in rectangular patterns instead of random.  

Weave doesn't work at all; its pattern is too complex and goes
wild at fine scales.

My python page
My ShareCG freebies