Rocky Road - Material Breakdown - Victor Hermosa

https://gamesartist.co.uk/rocky-road/
Material Artist, Victor Hermosa has made this rocky ground material in Substance Designer. In this article, he talks about, tile sampler, noise & deformation, masks, dirt, materials and rendering.
https://www.artstation.com/victorhermosa
https://www.artstation.com/artwork/ArXmEX