Old Sewer Bricks and Mortar
Martin pietras variation 1 final
Martin pietras variation 2 final
Martin pietras sewer brick 1 done2
Martin pietras variation 5 final brick sewer 2
Martin pietras variation 2
Martin pietras variation 3
Martin pietras node tree
Martin pietras brick generator
Old Sewer Bricks and Mortar

Some texturing I've been working on for the Skywind Project, all procedural with parameter to alter many of the aspects ranging from initial rock shape, rock erosion,rock pattern, along with mortar and moss control. Was inspired by dingy ancient sewers where rocks were more organic, and mortar and dirt really were plastered on in a different fashion.