电影级双色调棚拍人像光影

{
  "prompt_template": {
    "subject": "[参考照片中的人物]",
    "style": "超逼真的影棚肖像摄影，电影级双色调布光",
    "composition": {
      "framing": "胸部以上特写裁切肖像",
      "position": "完全居中，左右对称",
      "orientation": "垂直构图，4:5纵向宽高比",
      "gaze": "直视镜头，正对前方，下巴平视"
    },
    "expression": {
      "mood": "平静、中性、略带严肃",
      "mouth": "嘴唇微闭放松",
      "eyes": "锐利、敏锐、眼神坚定"
    },
    "wardrobe": {
      "clothing": "[纯色宽松版型白色圆领T恤]",
      "details": "无Logo，无图案，宽松落肩剪裁，肩部完全展现",
      "color": "纯白，在补光下带有柔和微光"
    },
    "lighting": {
      "setup": "双色调分光照明",
      "key_light": "来自镜头左侧的温暖琥珀色轮廓光，掠过面部一侧、颈部与肩部",
      "fill_light": "冷蓝色环境光填充面部和身体其余部分",
      "background_light": "与蓝色环境色调匹配的柔和渐变辉光",
      "contrast": "暖色高光与冷色阴影区域之间的高对比度",
      "quality": "柔和影棚漫射光配合清晰边缘光，面部无生硬突兀阴影"
    },
    "background": {
      "type": "无缝影棚背景布",
      "color_gradient": "深海军蓝渐变至青色，边缘较暗",
      "vignette": "向四角微弱暗角过渡",
      "texture": "平滑，无道具，无杂乱图案"
    },
    "camera_specs": {
      "lens": "85mm人像定焦镜头",
      "aperture": "浅景深，f/2.8质感",
      "focus": "眼睛和面部特征锐利聚焦",
      "sensor_feel": "中画幅数码人像质感"
    },
    "skin_and_hair_detail": {
      "skin": "自然逼真的皮肤纹理，可见毛孔，布光带来的细腻光泽，无过度磨皮假面感",
      "hair": "符合人物真实发型的自然质感与发量，边缘光下根根分明"
    },
    "color_grade": "电影级青橙色调配，暖色高光对比冷色阴影，胶片质感对比度",
    "post_processing": "保留自然瑕疵的精细肤质修饰，专业棚拍质感，无塑料假人感",
    "negative_prompt": "无文字，无水印，无多余物体，无画中画，无参考图叠加层，无多人，无畸形面部，无模糊双眼，无卡通风格，无生硬不自然阴影"
  }
}