Tree Bark - Material Breakdown - Joe Taylor

https://gamesartist.co.uk/tree-bark/
Material Artist, Joe Taylor has created this realistic bark material fully in Substance Designer, in this article, he talks about, ref, tips, shapes, height maps, curvature, base colour, roughness, surface variation, knots, damage, rendering, lighting & exporting.
https://www.artstation.com/joetaylorart
https://www.artstation.com/artwork/Ar4bAz