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Vance IngallsandClaude Sonnet 5
684ec4e875
Whole-plan coherence review (Plan 3a Layout + Plan 3b Motion) found that Layout's keyframe gutter and Motion's Timing row independently derived an element's start/duration and disagreed whenever an element had animations but no explicit data-duration: Motion correctly inferred the range from the element's GSAP tweens, while Layout's keyframe gutter fell back to a naive `duration ?? 1`, so clicking a keyframe percentage in Layout could seek to a different absolute time than what Motion's Timing row displayed. Extract deriveElementTiming (propertyPanelFlatTimingDerivation.ts) as the single shared basis both paths now consume: FlatTimingRow (Motion) and PropertyPanelFlat's own elStart/elDuration (Layout's keyframe gutter and 3D Transform block). PropertyPanelFlat now recomputes this basis itself from its own element/gsapAnimations props instead of trusting the parent's naive value, so PropertyPanel.tsx (and its legacy non-flat panel) is untouched. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
@hyperframes/studio
Browser-based composition editor UI for Hyperframes. Provides a visual timeline, code editor, and live preview for building video compositions.
Install
npm install @hyperframes/studio
What it does
The studio is a React application with:
- Visual timeline — drag, resize, and arrange elements on tracks
- Code editor — edit HTML and GSAP scripts with CodeMirror (syntax highlighting, autocomplete)
- Live preview — see changes in real time as you edit
- Composition inspector — view and modify element properties
Development
The studio is embedded in the hyperframes preview command. To develop the studio UI itself:
cd packages/studio
bun run dev # Start Vite dev server
bun run build # Build for production
bun run typecheck # Type-check
Tech stack
- React 18/19, Zustand (state management)
- CodeMirror 6 (editor)
- Tailwind CSS (styling)
- Vite (bundler)
- Phosphor Icons
Documentation
Full documentation: hyperframes.heygen.com/packages/studio
Related packages
@hyperframes/core— types and parsers used by the editorhyperframes— CLI that serves the studio viahyperframes preview