Silver Vein-Cut Travertine - Locker3d generated material study
    Three 1024 x 1024 8-bit PNG maps. Origin: AI-generated, not a photoscan.
    Albedo: sRGB. Roughness and OpenGL (+Y) normal: Non-Color.
    Normal Map node strength 0.65; metallic 0. No displacement, AO or metallic map.
    Roughness and normal are numerical estimates, not measured PBR data.
    Tile scale 1.2 m is illustrative. Inspect seams/repetition before close-up use.
    The packed Blender scene and GLB are separate downloads.
    CC0-1.0 under the Locker3d official texture policy. No attribution required.
    Prompt, preparation method and per-map SHA-256 are in SOURCE-METADATA.json.
    