{
  "id":"quarto-piloto",
  "scope":"One newly rendered empty bedroom image, to validate before other rooms.",
  "method":"3D Cycles rendering from geometry and procedural materials; no photo cutouts or photo texture projection.",
  "model":"analysis/current-house.json",
  "reference_photo":"P37",
  "crosscheck_photos":["P09","P10","P11","P31","P33","P38"],
  "coordinates":"Scene units for visual proportions, not measured metres.",
  "scale":0.017,
  "camera_fit":{
    "reference_size":[1280,960],
    "initial":[3.40,0.22,1.48,-48.0,-2.0,105.0],
    "bounds":[[2.0,4.10],[0.08,0.70],[1.15,1.85],[-75,-20],[-15,12],[70,120]],
    "anchors":[
      {"name":"ceiling rear left","world":[0,4.896,2.55],"pixel":[725,292]},
      {"name":"bathroom projection ceiling corner","world":[2.788,2.618,2.55],"pixel":[851,245]},
      {"name":"kitchen near door head","world":[0,3.706,2.125],"pixel":[583,369]},
      {"name":"kitchen far door head","world":[0,4.522,2.125],"pixel":[700,367]},
      {"name":"bathroom left door head","world":[3.332,2.618,2.125],"pixel":[1057,336]}
    ],
    "note":"Anchors and camera are estimated from the visible architecture; invisible door edge excluded from fitting. No lens calibration or measured dimensions. Fit residual is reported, not promoted to exact reconstruction."
  },
  "render":{"width":2000,"height":1500,"samples":128,"preview_width":1000,"preview_height":750,"preview_samples":24,"seed":41},
  "materials":{
    "wall":"#E9E6DF",
    "floor_dark":"#302923",
    "floor_light":"#695947",
    "ceiling_dark":"#3A2B1F",
    "ceiling_light":"#705435",
    "door_wood":"#63392B"
  },
  "pilot_opening_hypotheses":{
    "bed_window":{"from":111,"to":162,"sill":79,"head":117,"status":"hypothesis_low_confidence","evidence":"P37/P38 yellow textile zone; pilot-only visual positioning behind the cloth. Existing schematic location was uncalibrated. Not a proposal to move the opening; global model awaits user validation."}
  },
  "furniture":"No movable bedroom furniture or decoration in this pilot; fixed lights and openings retained. Bathroom context is simplified.",
  "window_note":"Opening to laundry confirmed; extent, frame and pane behind the yellow cloth remain low-confidence hypotheses. Neutral window representation, not product identification.",
  "panorama_note":"A single perspective image. Overlapping photos can guide reconstruction, but they do not establish calibrated 360 coverage. No panorama rendered in this pilot."
}