What this is

A native screen recorder in the Screen Studio / OpenScreen lineage, built as an all-Rust stack. Two parallel deliverables:

• wisp — a Pixi-equivalent 2D scene graph + filter chain library on wgpu. Pixi-shaped public API, scoped to power the recorder.
• screen-app — the Tauri 2 + Leptos recorder application that consumes wisp.

Library is means; the app is the goal.

Why the Pixi shape

The recorder is a compositor. Compositor-shaped problems map naturally to a scene-graph API: a Stage with Container children, sprites for video and cursor, Filter chains for shadows / blur / color grading, RenderTexture for captured frames. Pixi's API has been refined over a decade of compositor use; copying its shape (translated to Rust + wgpu) skips a lot of trial.

wisp is a focused subset, not a port — only the parts the recorder needs.