{
  "experiment_id": "summit_lighting_ablation_v2",
  "status": "all7_video_jobs_succeeded_six_conditions",
  "purpose": "Compare the influence of explicit gray-model lighting on AI-generated video, using exact prompt pairs and shared Seedream character references.",
  "source": {
    "blend": "demos/summit_xbot_upper_v2/summit_xbot_upper_v2.blend",
    "video": "renders/summit/summit_xbot_upper_v2_blockout.mp4",
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    "time_end_s": 5.416666666666667,
    "frame_start": 11,
    "frame_end": 130,
    "frame_count": 120,
    "fps": 24,
    "reference_width": 1120,
    "reference_height": 480,
    "selection": "Opening first speech, as corrected by the user; same summit_xbot_upper_v2 source scene."
  },
  "settings": {
    "resolution": "480p",
    "ratio": "21:9",
    "duration": 5,
    "seed": 2026101301,
    "generate_audio": true,
    "watermark": false
  },
  "character_refs": [
    {
      "id": "president",
      "color": "PURPLE",
      "stem": "01_president",
      "provider": "seedream",
      "model": "doubao-seedream-5-0-pro-260628",
      "seed": 61301,
      "size": "2048x1152",
      "format": "jpeg",
      "images": [],
      "source_section": "CH_PRESIDENT_SHEET",
      "source_prompt_sha256": "20e37a58f522501577ecd5a851af606920b60cc42fe4fc8202b8f8911b0905bd",
      "prompt_sha256": "8342e048a9038a73c2b6af7d7c6a79c8c5038184049aef5239f1683952dfd26c",
      "prompt_path": "demos/summit_lighting_ablation_v1/characters/01_president.prompt.txt",
      "status": "succeeded",
      "path": "refs/summit_lighting_ablation_v1/01_president.jpeg",
      "submitted_at_utc": "2026-10-13T17:28:48.303301+00:00",
      "sha256": "7e8eaee04fd2eb5c6eff80bad83c492406b53adc7f31bdc45e89a573e213115a",
      "byte_count": 229486,
      "dimensions": [
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      "detected_format": "JPEG",
      "output_modified": false,
      "completed_at_utc": "2026-10-13T17:30:17.742698+00:00",
      "elapsed_s": 89.439,
      "visual_qa": {
        "reviewed_original": true,
        "status": "usable",
        "review_notes": "Silver swept-back hair, short silver beard, navy suit with purple tie. Headshot and three costume views match; plain neutral illumination.",
        "reviewed_at_utc": "2026-10-13T17:32:06.606105+00:00"
      }
    },
    {
      "id": "premier",
      "color": "ORANGE",
      "stem": "02_premier",
      "provider": "seedream",
      "model": "doubao-seedream-5-0-pro-260628",
      "seed": 61302,
      "size": "2048x1152",
      "format": "jpeg",
      "images": [],
      "source_section": "CH_PREMIER_SHEET",
      "source_prompt_sha256": "d493945f28773ee4ce28b27aa8ca2ed6c43a869a44a4a718832ae76b0ae3f32e",
      "prompt_sha256": "175e1395446c8f7e188881bc4cd6b2ecee98af6b92c5cf3f8df9fe7661ff2504",
      "prompt_path": "demos/summit_lighting_ablation_v1/characters/02_premier.prompt.txt",
      "status": "succeeded",
      "path": "refs/summit_lighting_ablation_v1/02_premier.jpeg",
      "submitted_at_utc": "2026-10-13T17:28:48.375586+00:00",
      "sha256": "18239f90c1967ad0537db01694e0c4557829a181c231c248fa92f3e6d82ac12b",
      "byte_count": 256012,
      "dimensions": [
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      ],
      "detected_format": "JPEG",
      "output_modified": false,
      "completed_at_utc": "2026-10-13T17:30:13.012870+00:00",
      "elapsed_s": 84.637,
      "visual_qa": {
        "reviewed_original": true,
        "status": "usable",
        "review_notes": "East Asian woman with grey chin-length bob, pearl studs, burnt-orange jacket and black blouse. Costume views match; plain neutral illumination.",
        "reviewed_at_utc": "2026-10-13T17:32:06.606992+00:00"
      }
    },
    {
      "id": "marshal",
      "color": "RED",
      "stem": "03_marshal",
      "provider": "seedream",
      "model": "doubao-seedream-5-0-pro-260628",
      "seed": 61303,
      "size": "2048x1152",
      "format": "jpeg",
      "images": [],
      "source_section": "CH_MARSHAL_SHEET",
      "source_prompt_sha256": "6d16bf834340bbe4d56592a629b4789b317c3ec0072710886bd2005634373868",
      "prompt_sha256": "f017b632104e422ce9d737e711e45241297fe285881e94568776d4227339ef06",
      "prompt_path": "demos/summit_lighting_ablation_v1/characters/03_marshal.prompt.txt",
      "status": "succeeded",
      "path": "refs/summit_lighting_ablation_v1/03_marshal.jpeg",
      "submitted_at_utc": "2026-10-13T17:28:48.407204+00:00",
      "sha256": "2cf424f9d2f2072f29b5d0ec35c3efef19f6fc7ffdb95baae54d268b200709f5",
      "byte_count": 255037,
      "dimensions": [
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      ],
      "detected_format": "JPEG",
      "output_modified": false,
      "completed_at_utc": "2026-10-13T17:29:43.153973+00:00",
      "elapsed_s": 54.746,
      "visual_qa": {
        "reviewed_original": true,
        "status": "usable",
        "review_notes": "Short steel-grey hair, square weathered face and visible old nose injury, charcoal suit with dark red tie. Costume views match; plain neutral illumination.",
        "reviewed_at_utc": "2026-10-13T17:32:06.607396+00:00"
      }
    },
    {
      "id": "prime_minister",
      "color": "CYAN",
      "stem": "04_prime_minister",
      "provider": "seedream",
      "model": "doubao-seedream-5-0-pro-260628",
      "seed": 61304,
      "size": "2048x1152",
      "format": "jpeg",
      "images": [],
      "source_section": "CH_PM_SHEET",
      "source_prompt_sha256": "8a7be5f7915127c179071b5c52bf9593c665ad99dc77754824b2a17c0144c075",
      "prompt_sha256": "9823ef370eb9e62be77a7e5a549fae9f6d8b276a435f0339be3c4bfb24ef3c0a",
      "prompt_path": "demos/summit_lighting_ablation_v1/characters/04_prime_minister.prompt.txt",
      "status": "succeeded",
      "path": "refs/summit_lighting_ablation_v1/04_prime_minister.jpeg",
      "submitted_at_utc": "2026-10-13T17:29:43.155517+00:00",
      "sha256": "1255df7dd22e7a70936c8b7c1e5bbba74d6dee38e887851a6214a4a761282c13",
      "byte_count": 253698,
      "dimensions": [
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      ],
      "detected_format": "JPEG",
      "output_modified": false,
      "completed_at_utc": "2026-10-13T17:30:44.372103+00:00",
      "elapsed_s": 61.216,
      "visual_qa": {
        "reviewed_original": true,
        "status": "usable",
        "review_notes": "Younger Black man with close cropped hair and clean shaven face, light grey suit with teal tie and brown shoes. Costume views match; plain neutral illumination.",
        "reviewed_at_utc": "2026-10-13T17:32:06.607770+00:00"
      }
    },
    {
      "id": "king",
      "color": "GREEN",
      "stem": "05_king",
      "provider": "seedream",
      "model": "doubao-seedream-5-0-pro-260628",
      "seed": 61305,
      "size": "2048x1152",
      "format": "jpeg",
      "images": [],
      "source_section": "CH_KING_SHEET",
      "source_prompt_sha256": "be86fccb2c1099c4e8e4d9e00d60a7481da71abe886d6894240d701dcadca1c7",
      "prompt_sha256": "026ccceb5d6ec3d1a3d673d5802e2087c339cce5786873df7a34eefe11b4ee10",
      "prompt_path": "demos/summit_lighting_ablation_v1/characters/05_king.prompt.txt",
      "status": "succeeded",
      "path": "refs/summit_lighting_ablation_v1/05_king.jpeg",
      "submitted_at_utc": "2026-10-13T17:30:13.014353+00:00",
      "sha256": "4259aaf16904da98c6d149fe715bbb5c1bff5713c05165a0286feea1aef7b52f",
      "byte_count": 239384,
      "dimensions": [
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      ],
      "detected_format": "JPEG",
      "output_modified": false,
      "completed_at_utc": "2026-10-13T17:31:05.633265+00:00",
      "elapsed_s": 52.618,
      "visual_qa": {
        "reviewed_original": true,
        "status": "usable",
        "review_notes": "Oldest role, white hair and full white beard, dark bottle green high collar coat. Costume views match; plain neutral illumination.",
        "reviewed_at_utc": "2026-10-13T17:32:06.608133+00:00"
      }
    },
    {
      "id": "chancellor",
      "color": "YELLOW",
      "stem": "06_chancellor",
      "provider": "seedream",
      "model": "doubao-seedream-5-0-pro-260628",
      "seed": 61306,
      "size": "2048x1152",
      "format": "jpeg",
      "images": [],
      "source_section": "CH_CHANCELLOR_SHEET",
      "source_prompt_sha256": "d85b260651771930320e8f151d11f9cbd56a2397e810bd28d68a8e4bfa40afd1",
      "prompt_sha256": "1a9f58ac44a300094a23c3e5f9d66449d7f6d8aa8b733c950555b2b9fe60a809",
      "prompt_path": "demos/summit_lighting_ablation_v1/characters/06_chancellor.prompt.txt",
      "status": "succeeded",
      "path": "refs/summit_lighting_ablation_v1/06_chancellor.jpeg",
      "submitted_at_utc": "2026-10-13T17:30:17.743454+00:00",
      "sha256": "cc22fa32707774fe2f54f2761223a8cd20aa9a492ac73de46ad143e84d2b1ab1",
      "byte_count": 259742,
      "dimensions": [
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      ],
      "detected_format": "JPEG",
      "output_modified": false,
      "completed_at_utc": "2026-10-13T17:31:13.579057+00:00",
      "elapsed_s": 55.835,
      "visual_qa": {
        "reviewed_original": true,
        "status": "usable",
        "review_notes": "Thinning white hair, rounded gentle face, round tortoiseshell glasses, mid grey suit with pale blue shirt and mustard tie. Costume views match; plain neutral illumination.",
        "reviewed_at_utc": "2026-10-13T17:32:06.608508+00:00"
      }
    }
  ],
  "variants": [
    {
      "id": "A",
      "lighting_id": "L1",
      "description": "Lit gray-model reference, soft side daylight",
      "prompt_file": "prompts/A.txt",
      "reference_video": "renders/summit/summit_lighting_ablation_v2_L1.mp4",
      "prompt_pair": "A-D",
      "reference_sha256": "bcb17f24cef6d8b3d82bfa094c41f270bad8f16ab434798567cb522cac4fbe71",
      "prompt_sha256": "46a81ed1d8f760fe1a33ed9d44ba52489071889750d746d5ef9c101385ac9ec2"
    },
    {
      "id": "B",
      "lighting_id": "L2",
      "description": "Lit gray-model reference, warm hard side light",
      "prompt_file": "prompts/B.txt",
      "reference_video": "renders/summit/summit_lighting_ablation_v2_L2.mp4",
      "prompt_pair": "B-E",
      "reference_sha256": "f01eb7ec8fbb4945d5705f924d5239e086374f1d49d6506665a78bfc5232cbd7",
      "prompt_sha256": "1ce0ad208b8fd216aff3b94c4f8e57cf1636e63bce08e2716ec2cadfaab221e9"
    },
    {
      "id": "C",
      "lighting_id": "L3",
      "description": "Lit gray-model reference, cool overhead rim light",
      "prompt_file": "prompts/C.txt",
      "reference_video": "renders/summit/summit_lighting_ablation_v2_L3.mp4",
      "reference_sha256": "72fd3aa4ead470655cb0db8d2035ac314ca0b98925c32b82e494441bf446a74c",
      "prompt_sha256": "96079d1abc5d0a7e2551102512f207e184309bd37e7cbc1b1efe427808b3c25a",
      "prompt_pair": "C-F"
    },
    {
      "id": "D",
      "lighting_id": "L1",
      "description": "Unlit gray-model reference, exact same prompt as A",
      "prompt_file": "prompts/D.txt",
      "reference_video": "renders/summit/summit_lighting_ablation_v2_flat.mp4",
      "prompt_pair": "A-D",
      "reference_sha256": "4f5c052daeca2ede5c93f920af49278f217f5345ad37722810178482a5ae9ded",
      "prompt_sha256": "46a81ed1d8f760fe1a33ed9d44ba52489071889750d746d5ef9c101385ac9ec2"
    },
    {
      "id": "E",
      "lighting_id": "L2",
      "description": "Unlit gray-model reference, exact same prompt as B",
      "prompt_file": "prompts/E.txt",
      "reference_video": "renders/summit/summit_lighting_ablation_v2_flat.mp4",
      "prompt_pair": "B-E",
      "reference_sha256": "4f5c052daeca2ede5c93f920af49278f217f5345ad37722810178482a5ae9ded",
      "prompt_sha256": "1ce0ad208b8fd216aff3b94c4f8e57cf1636e63bce08e2716ec2cadfaab221e9"
    },
    {
      "id": "F",
      "lighting_id": "L3",
      "description": "Unlit gray-model reference, exact same prompt as C",
      "prompt_file": "prompts/F.txt",
      "reference_video": "renders/summit/summit_lighting_ablation_v2_flat.mp4",
      "prompt_pair": "C-F"
    }
  ],
  "controls": {
    "exact_prompt_pairs": [
      [
        "A",
        "D"
      ],
      [
        "B",
        "E"
      ],
      [
        "C",
        "F"
      ]
    ],
    "only_prompt_variation": "LIGHTING section",
    "same_reference_baseline": [
      "D",
      "E",
      "F"
    ],
    "fixed": [
      "source frames",
      "scene geometry",
      "body animation",
      "camera animation",
      "reference resolution and encoder",
      "base material colours",
      "six original character images and order",
      "video model",
      "output resolution and ratio",
      "duration",
      "seed",
      "audio settings",
      "prompt outside LIGHTING section"
    ]
  },
  "image_generation": "doubao-seedream-5-0-pro-260628",
  "character_generation_manifest": "../summit_lighting_ablation_v1/characters/manifest.json",
  "prompt_validation": "prompts/prompt_validation.json",
  "api_verification": "pipeline/api_verification.json",
  "lighting_rigs": "lighting/rigs.json",
  "baseline_definition": "Same albedo colours as strength1 emission shaders, no lamps, black world, no shading or cast shadows. All4 reference renders use EEVEE.",
  "seed_limitation": "Same requested seed across5; current Seedance2.5 docs do not guarantee seed support or deterministic outputs.",
  "replicates_per_condition": 1,
  "prior_preparation": "../summit_lighting_ablation_v1, prior19-24sselection superseded before any video generation; original6Seedreamreferences reused unchanged.",
  "video_model": "doubao-seedance-2-5-260628",
  "reference_video_status": "all4_complete_120decodedframes_5s_24fps_1120x480",
  "estimated_video_cost_cny": 27.9769,
  "estimated_character_cost_cny": 1.8,
  "submitted_video_job_count": 7,
  "output_overrides": {
    "D": {
      "ledger": "../summit_lighting_ablation_v2_D_retry_1/pipeline/jobs.json",
      "variant_id": "D"
    }
  },
  "user_requested_retry": {
    "variant": "D",
    "reason": "Purple gray-model material remained in the generated frame.",
    "same_prompt_and_inputs": true,
    "original_attempt_preserved": true,
    "total_video_calls_planned": 6
  },
  "actual_video_job_count": 7,
  "D_retry_visual_status": "Purple proxy material residue cleared in inspected frames; six distinct human characters present.",
  "delivery": {
    "directory": "out/summit_lighting_ablation_v2",
    "comparison_html": "out/summit_lighting_ablation_v2/comparison.html",
    "comparison_video": "out/summit_lighting_ablation_v2/comparison.mp4",
    "current_D": "out/summit_lighting_ablation_v2/D.mp4",
    "original_D": "out/summit_lighting_ablation_v2/archive/D_first_attempt.mp4",
    "primary_video_frames": 120,
    "primary_video_duration_s": 5,
    "fps": 24,
    "native_width": 992,
    "native_height": 432,
    "resolution_api_band": "480p",
    "raw_originals_preserved": true,
    "technical_validation_passed": true,
    "main_version_count": 6,
    "lossless_first120_pixels_verified_all6": true
  },
  "expected_variant_count": 6,
  "user_added_third_control": {
    "variant": "F",
    "same_prompt_as": "C",
    "same_all_other_settings": true
  },
  "compatibility_preview": "H.264 High CRF12 copies for playback; raw and first120-frame lossless versions retained."
}
