These are shaders I keep handy in my texture library. I've made them for different projects or created them during experimentation, some come from helpful tutorials or tips not always specifically for creating materials. I started this library about 3 years ago and many shaders have been improved or discarded during that time. I thought about posting them individually like the procedural stone I created, but that seems inconsiderate to the gallery and it's easy to put them in one entry. I may do highlights for future ones.