3D modeler Jaakko Saari has recently shared a fabric generator for Substance Designer and Substance Painter.
The pack allows to easily create realistic fabrics. You can adjust the weave pattern to create another type of fabric.
“The generator outputs a Weave Pattern, Random Pattern and a Blended Pattern between these two. The Blended Pattern has a random pattern blended in to create variation,” said the artist. “The Random Pattern can be used in many ways, to add color or roughness variation for example.”
Please note that this is a free substance, so the artist will not provide product support for this generator.
You can get the pack on Gumroad.