明暗对比影棚面部替换人像

{
  "meta": {
    "image_dna": {
      "type": "照片",
      "orientation_lock": "9:16",
      "sensor_emulation": "索尼Alpha，35毫米胶片颗粒仿真"
    }
  },
  "spatial_orientation_engine": {
    "subject_facing_direction": "头部转向左侧并微仰",
    "body_rotation": "躯干微向右倾斜，左肩向前",
    "camera_position_relative": "机位相对躯干平视，相对面部仰角略低"
  },
  "camera_optics_and_geometry": {
    "lens_profile": {
      "focal_length": "85毫米人像远摄镜头",
      "aperture": "f/2.8 浅景深，焦点精准落在眼睛和唇部",
      "lens_character": "电影感柔和质感与高微对比度"
    },
    "optical_flaws": [
      "ISO 800胶片颗粒",
      "肩部柔和失焦虚化",
      "高光处微弱光晕"
    ]
  },
  "environment_and_physics": {
    "lighting_engine": {
      "primary_source": "左上方（10点钟高位）强聚光灯或狭缝光",
      "radiosity_color_bleed": "暖色肤色反射到衣物内领",
      "shadow_structure": "明暗对照法（Chiaroscuro），面部右侧及背景呈深邃死黑",
      "volumetrics": "纯净影棚空气，极微弱大气薄雾"
    },
    "surface_physics": {
      "weather_impact": "无（室内影棚环境）",
      "material_response": "肩部、鼻梁及颧骨皮肤的高镜面反射"
    }
  },
  "objects_and_actors": [
    {
      "id": "MAIN_SUBJECT",
      "role": "保持参考图像中的人物特征",
      "pose_engineering": {
        "skeletal_rig": "颈椎延伸并向左旋转，左肩抬起，下巴微扬",
        "gaze_vector": "目光朝向左上方顺着光源看去",
        "interaction_physics": "衣物宽松垂落，自然从肩膀滑落"
      },
      "physiological_state": {
        "body_temp_visuals": "温暖通透，脸颊微泛红晕",
        "skin_light_interaction": "肩部及鼻梁处强镜面高光，受光边缘呈现次表面散射"
      },
      "clothing_simulation": {
        "garment_stack": "[驼色毛圈布浴袍]",
        "fabric_mechanics": "厚重织物垂坠，滑落露出锁骨",
        "texture_and_wear": "高摩擦毛圈质感，柔软凹凸布面"
      },
      "identity_placeholders": {
        "skin_tone": "匹配参考图片",
        "face_structure": "匹配参考图片",
        "hair_style": "匹配参考图片"
      }
    }
  ],
  "off_screen_context": {
    "reflections": "方向聚光灯在虹膜上方形成的眼神光",
    "implied_environment": "暗调极简摄影棚"
  }
}