Pebbles - Photogrammetry based Environment Texture

Pebbles - another photogrammetry based PBR texture I did for practice.
To get highpoly model I processed 27 images in Photoscan. Lowpoly model was made in Zbrush by using 'Topology Brush'. I used Substance Designer to bake, tile and tweak textures. Finally, I used Marmoset Toolbag 3 for testing purposes.