{
  "title": "Rift-Sawn Ash Veneer",
  "origin": "AI-generated with built-in image_gen; prepared by Locker3d",
  "date": "2026-11-08",
  "resolution": [
    1024,
    1024
  ],
  "license": "CC0-1.0, following the official Locker3d texture policy",
  "prompt": "Use case: photorealistic-natural. Asset: square flat PBR albedo for fine furniture veneer. A continuous single sheet of pale warm neutral rift-sawn ash with exceptionally straight, very thin dark-tan growth-ring lines running vertically from edge to edge and fine short longitudinal vessel pores aligned with the rings. This is a straight rift cut: no curved cathedrals, broad oak ray flecks, knots, wavy grain, crosscut dots, planks, leaf joints, mirror/book matching, veneer seams or thickness. Realistically varied spacing and very slight drift, quiet ivory to light oatmeal and gentle beige lines rather than golden orange. Show about a 50 cm square of actual-looking sanded ash veneer, individual latewood lines slender and spaced a few mm apart, fine detail visible without hard artificial stripes or regular graphic pattern. Full-bleed orthographic photograph of a flat material plane, uniform diffuse cross-polarized neutral light, intrinsic base color without gloss, directional shading, shadows, gradients, camera perspective, props, lettering, or watermarks. Left-right edges compatible in tone and texture, vertical fibers continue naturally across top-bottom repeat. Square output at least 1024 px.",
  "maps": [
    {
      "file": "textures/albedo.png",
      "colorSpace": "sRGB",
      "bytes": 1310475,
      "sha256": "f5bf8d1213103eb62c2771cb275f4fb9abac47debefb9f3254966ffb31ca4b45"
    },
    {
      "file": "textures/normal-gl.png",
      "colorSpace": "Non-Color",
      "bytes": 1009546,
      "sha256": "ca7e343d05fefced8a1138bdc021b9c87a2a2946a65c52046762668f108ad7f1"
    },
    {
      "file": "textures/roughness.png",
      "colorSpace": "Non-Color",
      "bytes": 222519,
      "sha256": "37ede8468d7f02cd0646bc83dbe2dcda85960e1ff333e2fdd75a29a3cd89fe3d"
    }
  ],
  "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": 0.786,
    "topBottomMeanAbsRGB": 3.432
  },
  "suggestedTileMeters": 0.5,
  "metallicConstant": 0,
  "normalStrength": 0.55,
  "beforeEdgeDiagnostics": {
    "leftRightMeanAbsRGB": 9.61,
    "topBottomMeanAbsRGB": 8.662
  }
}