Gbro Collage Broll

bash <本skill目录>/scripts/check_setup.sh

   echo 'export GEMINI_API_KEY="你的key"' >> ~/.zshrc && source ~/.zshrc

   python3 -m venv ~/hyperframes-projects/.omni-venv
   ~/hyperframes-projects/.omni-venv/bin/python -m pip install --upgrade "google-genai>=2.10.0" "httpx[socks]"

gemini-omni-flash-preview

~/hyperframes-projects/YYYY-MM-DD-collage-broll-标题/

<project>/
├── brief.md
├── visual-spec.json
├── imagegen-prompts.md
├── omni-jobs.json
├── gate2-qa.md
├── gate3-qa.md
├── still-contact-sheet.jpg
├── omni-contact-sheet-all.jpg
├── video-first-frame-all.jpg
├── end-frame-comparison-all.jpg
├── 01-概念名/
│   ├── omni-prompt.txt
│   ├── frames/
│   │   ├── last-frame-original.png
│   │   ├── first-frame.png
│   │   └── last-frame.png
│   └── omni/run-v01/
│       ├── final-5s.mp4
│       ├── final-5s-noaudio.mp4
│       ├── contact-sheet.jpg
│       ├── video-last-frame.jpg
│       └── end-frame-comparison.jpg
└── 02-概念名/...

1. 核心意思：经验每次都在重复消耗
   视觉隐喻：熟练剪辑师围着巨大的胶片时钟逐帧裁切，时钟走完一圈却只得到一小段成片
   关键物件：胶片时钟、剪辑师、剪刀、短胶片
   色彩：焦橙底，奶油白与浅青点色
   组装顺序：时钟 → 人物与剪刀 → 胶片 → 最终短输出

{
  "script_meaning": "",
  "visual_metaphor": "",
  "style_signature": "flat bold color field, mixed black-and-white halftone cut-outs and colored cardstock accents, crisp cut edges, cream keylines, soft paper shadows, editorial paper collage",
  "aspect_ratio": "9:16",
  "color_field": {
    "background_hex": "",
    "accent_colors": [],
    "paper_grain": "fine uncoated-paper fiber"
  },
  "elements": [
    {
      "what": "",
      "role": "",
      "motion": "",
      "placement": ""
    }
  ],
  "composition": {
    "layout": "",
    "negative_space": "",
    "final_frame": ""
  },
  "motion_plan": "structure first, subject or cards second, action and result last",
  "avoid": "typography, readable letters, numerals, logos, watermark, UI, subtitles, glossy 3D, photoreal environment"
}

Use case: ads-marketing
Asset type: final still frame for a 9:16 image-to-video B-roll clip
Primary request: Create a finished editorial paper-collage image expressing [一句话视觉命题].
Scene/backdrop: perfectly flat [颜色] paper field [hex] with subtle uncoated paper fiber.
Style/medium: premium editorial stop-motion paper collage; black-and-white halftone photographic cut-outs mixed with selective [点色] colored cardstock.
Composition/framing: vertical 9:16 locked poster frame; central subject within the middle 70 percent; generous clean color-field negative space; 3–6 large separable paper groups for later assemble-from-empty animation.
Materials/textures: visible printed halftone dots, crisp machine-cut edges, thin warm-cream paper keylines, soft low-opacity physical drop shadows.
Constraints: [本条隐喻必须一眼看懂的关系].
Avoid: no typography, no readable letters, no numerals, no logos, no watermark, no UI, no subtitles, no glossy 3D, no photoreal environment, no clutter.

ffmpeg -y -i <item>/frames/last-frame-original.png \
  -vf "scale=1080:1920:force_original_aspect_ratio=increase,crop=1080:1920" \
  <item>/frames/last-frame.png

ffmpeg -y -f lavfi -i color=c=0x<HEX>:s=1080x1920 \
  -frames:v 1 <item>/frames/first-frame.png

基础结构 → 人物或关键卡片 → 连接件 → 动作 → 最终结果

Paper-collage stop-motion assembly, using Image 1 as the exact empty first frame and Image 2 as the exact completed last frame. In one continuous locked-off vertical shot, open on the empty flat [color] paper field.

Assemble the scene piece by piece with crisp physical stop-motion timing: [按顺序描述 3–6 个元素如何滑入、卡位、连接和完成动作]. End by holding the supplied completed composition.

Preserve the exact 9:16 framing, [hex] color field, colored cardstock accents, uncoated paper grain, halftone dots, cream keylines, crisp cut edges and soft shadows. Restrained tactile 2D paper craft only.

No scene cuts, no camera movement, no zoom, no morphing, no new objects, no text, no letters, no numbers, no logos, no watermark, no UI, no sound.

[ -x ~/hyperframes-projects/.omni-venv/bin/python ] || {
  python3 -m venv ~/hyperframes-projects/.omni-venv
  ~/hyperframes-projects/.omni-venv/bin/python -m pip install --upgrade "google-genai>=2.10.0" "httpx[socks]"
}

{
  "prompt": "<omni prompt>",
  "image": [
    "<item>/frames/first-frame.png",
    "<item>/frames/last-frame.png"
  ],
  "output": "<item>/omni/run-v01/final-5s.mp4",
  "aspect_ratio": "9:16",
  "duration": 5
}

~/hyperframes-projects/.omni-venv/bin/python \
  <本skill目录>/scripts/generate_video.py \
  --batch <project>/omni-jobs.json \
  --concurrency 3

ffmpeg -y -i <run>/final-5s.mp4 \
  -map 0:v:0 -c:v copy -an \
  <run>/final-5s-noaudio.mp4

ffmpeg -y -i <run>/final-5s-noaudio.mp4 \
  -vf "fps=1,scale=270:480,tile=5x1" \
  -frames:v 1 <run>/contact-sheet.jpg