concrete wall grey industrial texture
Prompt
Photorealistic industrial background of a weathered pale gray perforated metal or concrete ventilation panel, filling the entire frame with a precise grid of square openings and recessed shadowed voids. Include subtle grime, chipped edges, dust buildup, small dark stains, and a thin horizontal seam running across the upper third with a few generic round screw heads. Flat overcast natural light, cool gray and charcoal palette with muted off-white highlights, quiet utilitarian mood. Straight-on symmetrical composition, minimal perspective distortion, crisp surface texture, deep focus from edge to edge. Shot like an architectural detail on a 50mm lens, f/5.6, neutral documentary style, no people, no text, no logos.
Negative Prompt
people, faces, readable text, logos, watermarks, brand marks, crosses, religious symbols, flags, identifiable landmarks, oversaturated colors, HDR halos, plastic texture, warped grid, extra screws, melted edges, dramatic vignette