雄伟秃鹰3D渲染提示

{
  "subject": {
    "description": "一只秃鹰的头部和上颈部，向上方光源看去。",
    "count": 1,
    "orientation": "侧面，朝左，向上倾斜",
    "pose_or_state": "静止，颈部伸展，头部向上看",
    "expression": "威严，中性"
  },
  "scale_and_proportion": {
    "subject_to_frame_ratio": "主体约占画面40%，位于画面中右部",
    "proportions": "解剖学上精确的鹰头",
    "negative_space": "画面左侧和底部有大量负空间"
  },
  "composition": {
    "shot_type": "特写",
    "camera_angle": "低角度，仰视主体",
    "framing": "主体位于画面右半部分",
    "symmetry": "高度不对称",
    "background": "漆黑一片，带有明显的对角线体积光线",
    "depth_of_field": "景深大，光线和被照亮的主体特征都清晰对焦"
  },
  "temporal_context": {
    "era": "当代数字艺术",
    "modern_elements": false,
    "retro_stylization": false,
    "trend_influence": false
  },
  "style": {
    "visual_type": "3D渲染",
    "realism_level": "最大纹理真实感",
    "art_style": "无",
    "stylization": false,
    "interpretation": "仅字面再现"
  },
  "lighting": {
    "setup_type": "体积光 / 轮廓光",
    "light_direction": "右上角，光线向下投射至左下角",
    "light_quality": "硬质体积光束（耶稣光）",
    "contrast": "极高，明暗对比效果",
    "shadow_behavior": "深邃、绝对黑色的阴影遮蔽了主体的下半部分",
    "color_temperature": "非常冷，单色深紫/紫色",
    "lighting_variation": "无"
  },
  "materials": {
    "primary_materials": [
      "羽毛",
      "角蛋白（喙）"
    ],
    "surface_finish": "哑光羽毛，半光泽喙",
    "light_reflection": "喙上部曲线有锐利反光，单根羽毛边缘有柔和高光",
    "material_accuracy": "精确"
  },
  "color_palette": {
    "dominant_colors": [
      "深紫色 (#32174d)",
      "黑色 (#000000)"
    ],
    "saturation": "紫色光束饱和度高",
    "contrast_level": "最大",
    "color_shift": false
  },
  "texture_and_detail": {
    "surface_detail": "只有光线照射到的地方才能看到细微的羽毛绒毛和纹理",
    "grain_noise": "无，完美的干净数字渲染",
    "micro_details": "保留了喙的纹理和高光羽毛的锐利边缘",
    "sharpness": "喙和头部顶部清晰对焦"
  },
  "camera_render_settings": {
    "lens_equivalent": "50mm",
    "perspective_distortion": "无",
    "aperture_look": "f/8（深景深）",
    "resolution": "高",
    "render_quality": "干净中性"
  },
  "constraints": {
    "no_additional_objects": true,
    "no_reframing": true,
    "no_crop": true,
    "no_stylization": true,
    "no_artistic_license": true,
    "no_text": true,
    "no_watermark": true,
    "no_effects": true,
    "no_dramatic_lighting": false,
    "no_color_grading": true
  },
  "iteration_instruction": {
    "compare_to_reference": true,
    "fix_geometry_first": true,
    "then_fix_composition": true,
    "then_fix_lighting": true,
    "then_fix_color": true,
    "ignore_aesthetic_improvements": true
  },
  "negative_prompt": [
    "创意",
    "电影感",
    "艺术性",
    "风格化",
    "插画",
    "抽象",
    "戏剧性",
    "广角",
    "鱼眼",
    "夸张",
    "重新诠释",
    "额外元素",
    "现代化",
    "复古风格",
    "色彩分级",
    "AI伪影",
    "暖色调",
    "可见背景元素"
  ]
}