Made with Grok Imagine · CC0 · 11 Oct 2026

nml_concrete_roughness

Generated from: Seamless tileable grayscale roughness map, no colour, no lighting, no shadows, no text, no watermark, brightness equals surface roughness only, 4096x4096. Surface: weathered cast concrete pillbox wall from a World War One battlefield. Mostly light grey high roughness dry cement grain, broken up by darker smoother patches where rain water has run and where soot and grime sit, evenly distributed over the whole frame with no focal feature and no large contiguous region. Fine varied mottling. Perfectly seamless: left edge matches right edge, top edge matches bottom edge. Technical game PBR roughness map.