I want to create a tiled texture to texture a cave dungeon. The texture direction is hand-painted, wow like. I've looked for tutorials, but most are about either sculpting the surface or using photo sourced textures and lot of filters.
I've not so much of a problem when the wall consists of single stones or bricks, but I don't know how to approach a rock/cave like texture. Looking at reference photos I only see lot of small details , I'm currently lacking the ability to catch the core features of the rock and to translate this to some painting technique.
Any help will be appreciated :-)