nuva-lab/skills/remotion-render

Remotion Render Skill

Generic video rendering with motion graphics overlays.

Components

• VideoClip.tsx - Main composition (video + captions + annotations)
• components/RollingCaption.tsx - Karaoke-style word highlighting
• components/SpeakerLabel.tsx - Positioned speaker annotations
• components/ContextBadge.tsx - Location/event badge

Usage

Called by make-video skill. Not typically invoked directly.

npx remotion render VideoClip output.mp4 --props=props.json

Props Interface

{
  videoSrc: string;           // Video filename in public/
  captions: Caption[];        // Timed caption segments
  speakers: SpeakerAnnotation[];  // Speaker labels with positions
  contextBadge: {
    location: string;
    event: string;
  }
}

Dependencies

• @remotion/captions - TikTok-style caption pages
• @remotion/media - Video embedding
• System fonts (PingFang SC) for Chinese text

Best Practices (rules/)

Reference documentation for Remotion patterns:

• rules/display-captions.md - TikTok-style captions with word highlighting
• rules/videos.md - Video embedding, trimming, volume, speed
• rules/text-animations.md - Typewriter, word highlight effects
• rules/fonts.md - Loading Google Fonts and local fonts
• rules/animations.md - Interpolation, spring, easing
• rules/timing.md - Frame-based timing and curves
• rules/sequencing.md - Sequence patterns for timeline control

See rules/ folder for complete documentation.