A highly detailed procedural PBR material simulating raw, weathered concrete. This shader captures realistic surface imperfections, including micro-cracks, porous textures, and subtle organic staining. The procedural nature allows for infinite variation and scaling without visible tiling, making it ideal for brutalist architecture, urban environments, and industrial design visualizations. You can easily adjust the level of grit, moisture, and surface roughness to fit everything from polished floors to aged outdoor structures.