editframe-composition
Video Composition
Build video compositions with HTML web components (<ef-timegroup>, <ef-video>, etc.) or React (<Timegroup>, <Video>, etc.). Same composition model, same rendering pipeline — pick the syntax that fits your project.
Web component attributes use kebab-case (sourcein, auto-init). React props use camelCase (sourceIn, autoInit). Each element reference documents both.
Before opening any reference file, answer:
1. HTML or React?
- HTML/web components — kebab-case attributes, works in any HTML file
- React — camelCase props, requires
TimelineRootwrapper (see references/timeline-root.md)
2. What's the core structure?
Every composition is a tree of ef-timegroup containers. Pick a mode:
mode="sequence"— children play one after another (scenes)mode="fixed"— children play simultaneously for a setdurationmode="contain"— expands to fit children
3. What does the user need?
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93visual-thinking
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84css-animations
CSS animation fill-mode requirements for Editframe timeline system. Use when creating CSS animations, debugging flashing/flickering issues, or when user mentions animation problems, fade effects, slide effects, or sequential animations.
82threejs-compositions
Integrate Three.js 3D scenes into Editframe compositions via addFrameTask. Scenes are pure functions of time, fully scrubable, and renderable to MP4. Use when creating 3D animations, WebGL content in compositions, or integrating Three.js with Editframe's timeline system.
81editor-gui
Build video editing interfaces using Editframe's GUI web components. Assemble timeline, scrubber, filmstrip, preview, and playback controls like lego bricks. Use when creating video editors, editing tools, or when user mentions timeline, scrubber, preview, playback controls, trim handles, or wants to build editing UIs.
77elements-new-package
Create a new @editframe/* workspace package in the elements monorepo and publish it to npm.
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