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Vance Ingalls
03b27197a5
moveEdge fed retimeRange the live draft on every pointermove while origin.t0/t1 stayed pinned to the drag's start. retimeRange is a relative transform that scales a lane's own current point positions, so repeated pointermoves compounded the scale factor (interior points drift toward the far edge) and could drop points that retimed past the selection's original bound out of the next move's `inner` set entirely. Snapshot lane.points at arm time (armBackgroundGesture) alongside the existing frozen origin, and always retime from that snapshot in moveEdge instead of the live draft. finishEdgeDrag is unchanged: it already just persists the last (now-correct) preview. Adds a regression test asserting a multi-pointermove edge-drag (both edges) lands on the exact same final points as a single-shot drag to the same target — the case that exposed the bug, since the existing suite only ever tested a single move.
@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