{
  "title": "Brushed Ochre Limewash",
  "origin": "AI-generated with built-in image_gen; prepared by Locker3d",
  "date": "2026-11-02",
  "resolution": [
    1024,
    1024
  ],
  "license": "CC0-1.0, following the official Locker3d texture policy",
  "prompt": "Use case: photorealistic-natural. Asset type: square diffuse/albedo map for an interior wall material. Subject: a thin brushed ochre limewash finish over very fine smooth mineral plaster, with visible broad soft overlapping hand-brush strokes in alternating diagonal directions. The brush application is the defining feature: uneven translucent pigment coverage, subtle crossing bands and delicate bristle traces, NOT a random cloudy sponge texture, troweled stucco, concrete, or thick impasto. Muted warm golden-ochre and pale wheat tones with restrained local variation, clean matte dry mineral surface, no cracks, exposed aggregate, holes, flaking, stains, ornaments or damaged patches. Illustrative area about 1.2 meters square, broad brush swaths about 10 to 20 cm wide; small surface grain stays much finer. Full-bleed perpendicular orthographic material photography with consistent scale and no focal patch, opposite edges designed to repeat. Perfectly uniform neutral cross-polarized diffuse illumination intended for intrinsic base color: no directional shading, light streaks, cast shadows, ambient occlusion, specular highlights, reflections, vignette or corner gradients. Color variations follow the brush application and should not look like raised ridges. Real photographic mineral finish with natural irregularity, conservative contrast, not a stylized painting. No wall corner, room, sphere, object, perspective, text, labels, logo, border or watermark. Output square at least 1024 pixels.",
  "maps": [
    {
      "file": "textures/albedo.png",
      "colorSpace": "sRGB",
      "bytes": 1798752,
      "sha256": "a8a30d774dd13b3c9a26785a303ef4d7da21103617697df41c61ebf79d6f5e5d"
    },
    {
      "file": "textures/normal-gl.png",
      "colorSpace": "Non-Color",
      "bytes": 640538,
      "sha256": "11be6d7b2042019c8c832d206448422f6edbf867e3eca31ae2ce75e8cc91c269"
    },
    {
      "file": "textures/roughness.png",
      "colorSpace": "Non-Color",
      "bytes": 373487,
      "sha256": "a903c6956a1f7f7547116722b4a4820ef0e4c9e6f06c9dca6a90e8d1db6637ac"
    }
  ],
  "method": "Albedo: periodic-plus-smooth decomposition via FFT Poisson solve to reduce edge mismatch. Normal: periodic multi-scale Gaussian bands, robust contrast normalization, material-specific cavity/joint masks and central-difference tangent-space gradients. Roughness: material preset plus local detail and joint variation. All data channels are estimates, not measured surface response.",
  "limits": "Not a photoscan. No AO, displacement or metallic maps. Generated images are not guaranteed seamless; inspect repetition at your target scale. No measured physical scale; demo scale is illustrative.",
  "edgeDiagnostics": {
    "leftRightMeanAbsRGB": 1.851,
    "topBottomMeanAbsRGB": 1.846
  },
  "suggestedTileMeters": 1.2,
  "metallicConstant": 0,
  "normalStrength": 0.4,
  "beforeEdgeDiagnostics": {
    "leftRightMeanAbsRGB": 7.733,
    "topBottomMeanAbsRGB": 7.021
  }
}