We've created a tutorial that shows how to create a photorealistic hanging hand towel. We know that towels are notoriously difficult to get looking right in CGI, so last year we delegated one of our skilled 3D artists to create a set of photoreal towels that could be quickly added to a broad range of bathroom scenes. We've chose to focus the tutorial on a hand towel hanging in a ring, as it gives a broader overview of the various software and techniques that can be used to create other variations.
Page with all the video notes and reference images -
https://www.pikcells.com/lab/photorealistic-hanging-towel-tutorial