veo-generator

# Veo 3.1 Video Generator Generate videos from text prompts using Veo 3.1 on Vertex AI, save to CC Pages, and send to Discord. ## Usage Call the generation script directly: ```bash ~/.claude/scripts/veo-generate.sh "your prompt here" ``` ### Options ```bash # Basic generation (1 video, 16:9, 8s, fast model, 720p) ~/.claude/scripts/veo-generate.sh "a cat playing with a laser pointer" # Portrait video for mobile ~/.claude/scripts/veo-generate.sh "smartphone app demo" --aspect 9:16 # Shorter clip ~/.claude/scripts/veo-generate.sh "ocean waves at sunset" --duration 6 # Higher quality model (slower, more expensive) ~/.claude/scripts/veo-generate.sh "cinematic drone shot over mountains" --model standard # 1080p resolution ~/.claude/scripts/veo-generate.sh "product showcase" --resolution 1080p # Multiple videos (1-4) ~/.claude/scripts/veo-generate.sh "abstract art animation" --count 2 # Negative prompt (avoid certain content) ~/.claude/scripts/veo-generate.sh "peaceful park scene" --negative "people, crowds, text" # Disable prompt rewriter (use exact prompt) ~/.claude/scripts/veo-generate.sh "minimal geometric shapes" --no-rewrite # Custom output filename ~/.claude/scripts/veo-generate.sh "logo animation" --output brand-intro # Longer timeout for complex videos ~/.claude/scripts/veo-generate.sh "detailed cityscape timelapse" --timeout 600 # Combine options ~/.claude/scripts/veo-generate.sh "B200 GPU rack with blinking LEDs, cinematic" --aspect 16:9 --model standard --resolution 1080p --duration 8 ``` ### Output - Videos saved to `/var/www/cc/assets/veo/` as MP4 - Returns the public URL: `https://cc.higcp.com/assets/veo/{filename}.mp4` - When called from Discord context, send the URL using `send-to-discord.sh --plain` ### Workflow for Discord ```bash # 1. Generate video URL=$(~/.claude/scripts/veo-generate.sh "your prompt" --aspect 16:9) # 2. Send to Discord ~/.claude/scripts/send-to-discord.sh --plain "$URL" ``` ## Important: Async Operation Unlike Imagen (synchronous), Veo uses **long-running operations**: 1. Submit request → get operation ID 2. Poll `fetchPredictOperation` every N seconds 3. When `done: true`, extract video bytes or GCS URI The script handles all of this automatically. Default poll interval is 10s, timeout is 300s (5 min). For complex prompts, use `--timeout 600`. **Progress output goes to stderr**, so `URL=$(...veo-generate.sh...)` captures only the final URL. ## Models - **`veo-3.1-fast-generate-preview`** (fast, default) — Faster generation, good quality - **`veo-3.1-generate-preview`** (standard) — Best quality, slower ### Older Models (available but not default) - `veo-3.0-generate-001` / `veo-3.0-fast-generate-001` — Veo 3 GA - `veo-2.0-generate-001` — Veo 2 (no 1080p support) ## Parameters - **Aspect Ratio**: `16:9` (landscape, default), `9:16` (portrait) - **Duration**: 4, 6, or 8 seconds (default: 8) - **Resolution**: `720p` (default), `1080p` (Veo 3+ only) - **Sample Count**: 1-4 videos per request - **Negative Prompt**: describe content to avoid - **Enhance Prompt**: Gemini-powered prompt rewriting (on by default) - **Person Generation**: `allow_adult` (default), `disallow` ## Prompt Tips - Be specific: "A golden retriever running through autumn leaves in slow motion, cinematic lighting" > "dog running" - Specify camera movement: "dolly zoom", "tracking shot", "aerial drone shot", "timelapse" - Specify style: "cinematic", "documentary", "anime", "watercolor", "photorealistic" - Supports Chinese prompts natively - Use `--negative` to exclude unwanted elements ## Prerequisites - gcloud CLI with valid credentials - Vertex AI API enabled on the GCP project - `/var/www/cc/` served by nginx (CC Pages) ## Files ``` ~/.claude/scripts/ └── veo-generate.sh # Video generation script /var/www/cc/assets/veo/ # Generated videos (web-accessible) ```