Photogrammetry based surface of rock.
I took just 6 images to capture that surface (focal length 70mm, f16). Was enough to get 8mln highpoly mesh after being processed. Used Zbrush and simple Plane3D to create lowpoly model to bake: diffuse, normal, ambient occlusion and bent normal. Texture was tiled in Painter. Was trying to use baked height map but as it cause a lot of issues during tiling, I decided to use my latest invention and used 'bent normal' to generate one in Designer.