I wanted to learn more about creating photo realistic fabrics in Substance Designer. I found a great learning resource at LevelUp.Digital, where they have very affordable learning resources from industry professionals. Pauline Boiteaux' tutorials in particular are very helpful. I learned how to break a frabric down to the individual loops, and build it up from there with a lot of customization options. I'll definitely return to these techniques to produce my own unique fabrics and patterns soon.