暗调天体投影艺术人像

{
  "generation_request": {
    "meta_data": {
      "task_type": "low_key_projection_mapping_portrait",
      "language": "zh"
    },
    "output": {
      "aspect_ratio": "4:5",
      "resolution": "high"
    },
    "scene": {
      "concept": "以投影映射为主要光源的暗调情绪人像摄影",
      "environment": "纯黑无缝背景，无可见房间细节，无道具",
      "composition": "四分之三侧面半身人像，主体在画面中稍偏下方，上方留白，发光星球如光环般位于脑后"
    },
    "subject": {
      "person": "[成年女性]",
      "wardrobe": {
        "top": "深色极简上衣，非反光哑光面料"
      },
      "hair_makeup": {
        "hair": "自然散落的长发，真实质感",
        "makeup": "极简裸妆，保留皮肤毛孔与真实质感"
      },
      "pose": "头部微倾，一只手轻触耳畔，双肩放松",
      "expression": "平静、梦幻，带有若有若无的恬淡微笑"
    },
    "projection": {
      "content": "发光的带光环[土星]",
      "placement": "居中位于脑后，星环弧线向画面边缘延伸",
      "light_behavior": "彩虹折射光带贴合在脸部与手臂上，自然柔和地过渡至阴影",
      "notes": "光线自然包裹面部立体轮廓，避免扁平贴图感"
    },
    "camera": {
      "shot": "投影光影人像",
      "lens_mm": 50,
      "aperture": "f/2.0",
      "focus": "眼睛和嘴唇清晰锐利，发丝柔和虚化",
      "quality_tags": "逼真摄影、电影质感、细腻胶片颗粒"
    },
    "lighting": {
      "style": "投影仪为主光源，辅以极微弱的环境补光",
      "notes": "深邃纯黑、高对比度、背景无杂散光溢出、眼中具柔和眼神光"
    },
    "color_grade": {
      "palette": "深黑底色，高饱和度青色、洋红与绿色的光谱彩虹带，冷冽的星球深蓝",
      "contrast": "高动态对比度，高光细节受控",
      "effects": "细腻颗粒，最亮投影边缘伴有轻微光晕效果"
    }
  }
}