wet_cobbles

The road surface of Lamplighter's Round: procedural granite setts on a jittered Worley cell over world XZ, with the mortar joint cut from the distance to the cell border and the dome of each stone taken analytically from its offset to the cell site. A per-cell hash gives every sett its own tone and its own roughness, and a much larger noise lays standing water over the top where roughness collapses to a mirror and the albedo darkens. The roughness variance is the point: it is what makes a gas flame streak across the road instead of sitting on it as a disc.