Here is some of the work I have done over the past few years on Riders Republic at Ubisoft Annecy.
As part of the biome team, I was responsible of producing all the terrain textures following the art direction. During this mandate I closely worked with the art director, technical artists and nature artists to provide as much as possible the most relevant and unique biomes.
Those textures were fully made into substance Designer and are 100% procedural.
*not rendered in the engine