{
  "schema_version": 1,
  "run_id": "run-20261015-rainbow-budgie-v13",
  "title": "首と胸をつなぐ、柔らかなアニメ調",
  "species": "レインボー・セキセイインコ（試作）",
  "model_id": "rainbow-budgie-blended-neck-v13",
  "action_id": "upright-preen-body-follow",
  "animation_id": "Animation",
  "category": "羽づくろい",
  "created_at": "2026-10-15T09:58:34.378745+00:00",
  "created_at_precision": "exact",
  "parent_run_id": "run-20261015-rainbow-budgie-v12",
  "source_commit": "b748ff6d3236a952e9fba41b9df3cf1e4c968e7c",
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    "baseline": "v12 approved appearance retained; same 1500 feather cards and thin independent base patches",
    "boundary_material": "Match smooth torso matte, low-specular, soft sheen and subtle fill response to neck bases",
    "boundary_geometry": "Gradually bury bottom base patches 0.25 mm more and taper overlap from 1.14 to 1.00 across z46–57 mm",
    "core_and_motion": "Same slender core, facial accents, feet and rig/action; no full-body tufts",
    "scope": "Localized finish, not realistic feather reconstruction or application implementation"
  },
  "quality": "人間評価待ち",
  "adoption": "公開試作",
  "evaluation": {
    "summary": "v12の柔らかなアニメ調を維持し、首と胸の材質差と下端の境界を局所的に緩和。",
    "naturalness": "人間評価待ち",
    "unresolved": [
      "首の境界を完全に消したわけではありません",
      "薄片内の圧縮は残るため、厳密な非伸縮の羽ソルバーではありません",
      "実機モバイルの描画速度・多頭表示は未計測",
      "羽同士の衝突処理は未実装"
    ],
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      "rest_head_height_mm": 85.94977110624313,
      "rest_head_foreaft_mm": -29.66454066336155,
      "body_rest_pitch_adjustment_deg": -55,
      "body_follow_peak_deg": 3.0,
      "max_glb_surface_error_mm": 0.005900936685065972,
      "roundtrip": [
        {
          "frame": 0,
          "max_surface_error_m": 3.1564425171382027e-06
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        {
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          "max_surface_error_m": 5.518903890333604e-06
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        {
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          "max_surface_error_m": 5.899079496884951e-06
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          "max_surface_error_m": 5.900936685065972e-06
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          "max_surface_error_m": 5.890751253900817e-06
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          "max_surface_error_m": 5.726732524635736e-06
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          "max_surface_error_m": 5.617522219836246e-06
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          "max_surface_error_m": 4.895334768661996e-06
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          "max_surface_error_m": 3.1631898309569806e-06
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          "max_surface_error_m": 3.163044766552048e-06
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          "frame": 80,
          "max_surface_error_m": 3.490282779239351e-06
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        {
          "frame": 90,
          "max_surface_error_m": 3.4741699437290663e-06
        },
        {
          "frame": 100,
          "max_surface_error_m": 3.2546681723033544e-06
        },
        {
          "frame": 110,
          "max_surface_error_m": 3.1631898309569806e-06
        },
        {
          "frame": 120,
          "max_surface_error_m": 3.1609763482265407e-06
        },
        {
          "frame": 130,
          "max_surface_error_m": 3.1564425171382027e-06
        },
        {
          "frame": 140,
          "max_surface_error_m": 3.1564425171382027e-06
        }
      ],
      "style_assessment": "Toward simplified matte animation style; not human-approved",
      "references": [
        "https://academy.allaboutbirds.org/feathers-article/"
      ],
      "reference_note": "Contour feathers: concealed fluffy bases and shallow overlapping visible tips. Reference photos inspected, not copied or republished.",
      "limitations": [
        "Feet are tracked by weighted vertices, not a full dynamic contact solver",
        "Wings remain folded shells bound to torso, not articulated flight wings",
        "Naturalness, head shape and cartoon appeal require human assessment"
      ],
      "trials": 1,
      "max_eye_surface_distance_mm": 0.05501996201928705,
      "min_toe_pad_perch_gap_mm": -0.17940049683876252,
      "motion_fcurves_identical_to_parent": true,
      "motion_unchanged_outside_window": null,
      "motion_fcurves_sha256": "20e0de90d14848d0dab294e2e32e00154f235e66e17cee8824cf226504852def",
      "toe_count_per_foot": 4,
      "toe_arrangement": "2 forward + 2 backward",
      "limits": "Perch contact tolerance permits 0.3 mm shallow intersection; this is a visual/support check, not a physical solver.",
      "experiment_status": "prototype_human_review_pending",
      "root_attachment_passed": true,
      "root_attachment_guard_mm": 0.2,
      "feather_roots_fixed_in_morphs": true,
      "max_feather_root_distance_mm": 0,
      "max_tip_morph_displacement_mm": 0.11032158673368483,
      "core_width_at_z68mm": 13.305421452969313,
      "masked_feather_materials": 1,
      "merged_bone_and_morph_animation": true,
      "visual_assessment": "全身の毛束を取りやめ、滑らかなアニメ調へ。首だけに薄く重なる羽を残した試作。",
      "root_attachment_frames_checked": 141,
      "neck_piece_length_measurements": {
        "Flexible neck feathers": {
          "min_edge_length_ratio": 0.5379771822099689,
          "max_edge_length_ratio": 1.1071049279802783,
          "sampled_edges": 4000,
          "frames": 141
        },
        "Soft feather undercoat": {
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          "max_edge_length_ratio": 1.0408569118011064,
          "sampled_edges": 4081,
          "frames": 141
        }
      },
      "neck_piece_length_note": "Shared weights within each piece remove cross-piece stretching; linear-blend skinning still causes the measured residual strain. Not a physically inextensible feather solver.",
      "baseline_same_edge_sample": {
        "Flexible neck feathers": {
          "min_edge_length_ratio": 0.5379771822099689,
          "max_edge_length_ratio": 1.1071049279802783,
          "sampled_edges": 4000,
          "frames": 141
        },
        "Soft feather undercoat": {
          "min_edge_length_ratio": 0.5491175353016142,
          "max_edge_length_ratio": 1.0408569118011064,
          "sampled_edges": 4081,
          "frames": 141
        }
      },
      "stable_edge_sampling": "Sorted vertex-pair indices, then uniform stride; old unsorted samples are not directly comparable",
      "boundary_regression": {
        "baseline_revision": "rainbow-budgie-v12",
        "feather_core_positions_faces_weights_morphs_identical": true,
        "edge_sampling_note": "Mesh edge storage order is not stable; strain checks sort endpoint index pairs before sampling."
      },
      "asset_complexity": {
        "v12": {
          "glb_bytes": 16180976,
          "primitives": 38,
          "vertices": 175127,
          "triangles": 150397,
          "materials": 15
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        "v13": {
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        },
        "note": "Asset complexity unchanged; these are not device frame-rate measurements. Current mesh remains substantial for future multi-bird mobile use."
      }
    }
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    "author": "pistachio",
    "acquired_date_utc": "2026-10-13",
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    "license_verified": true,
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    },
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