戏剧感黑白棚拍男士肖像

{
  "master_prompt": {
    "scene_type": "电影级黑白男性肖像摄影",
    "reference_requirement": {
      "identity_match": "精确还原参考照片中的人物特征",
      "facial_accuracy": [
        "骨骼结构",
        "眼型与眼距",
        "鼻部比例",
        "下颌线与颧骨结构",
        "面部对称性",
        "发际线与发型",
        "胡须密度（若有）"
      ],
      "skin_texture": "保留自然毛孔、细纹与真实肌肤质感",
      "no_artificial_smoothing": true
    },
    "subject": {
      "type": "[成熟自信的男性]",
      "expression": {
        "mood": "严肃、从容、内敛而有力",
        "gaze": "直视镜头",
        "emotion": "专注且深邃内省"
      }
    },
    "facial_hair": {
      "adaptive": true,
      "rules": [
        "若参考图中有胡须则精准还原",
        "匹配密度、边缘与轮廓",
        "呈现包括花白在内的自然色调层次"
      ],
      "clean_shaven_rule": "若无胡须，突出清晰下颌线与自然皮肤纹理"
    },
    "hairstyle": {
      "adaptive": true,
      "requirement": "完全还原参考图发型",
      "details": [
        "自然发流走向",
        "发丝细节分明",
        "微妙的高光反射"
      ]
    },
    "pose": {
      "style": "自信的肖像姿态",
      "description": [
        "头部微侧朝向镜头",
        "[一只手轻托下巴或下颌]",
        "放松而深思的体态",
        "手指自然摆放并带有清晰皮肤纹理"
      ]
    },
    "lighting": {
      "style": "戏剧性伦勃朗棚拍光影",
      "contrast": "深沉的电影级高反差",
      "key_light": {
        "position": "上方略偏向画面右侧",
        "type": "大型柔光箱或漫射摄影棚灯",
        "effect": "在前额、鼻梁、颧骨及胡须纹理上雕刻出高光"
      },
      "shadow_style": [
        "面颊呈现柔和的三角形伦勃朗光斑",
        "暗部深沉但保留丰富细节",
        "强化面部骨骼轮廓感"
      ],
      "fill_light": {
        "intensity": "极微弱",
        "purpose": "保留微妙中间调细节而不削弱反差"
      },
      "rim_light": {
        "intensity": "克制微弱",
        "placement": "发际边缘与肩部轮廓",
        "purpose": "使主体与深色背景分离"
      },
      "catchlights": {
        "type": "微小自然的摄影棚反光点",
        "placement": "双眼瞳孔中央"
      }
    },
    "background": {
      "type": "纯净深黑色背景",
      "texture": "无纹理",
      "light_spill": "完全吸收无溢光"
    },
    "composition": {
      "orientation": "竖版肖像"
    }
  }
}