WAAPI and compositing: production-level GPU-friendly transform/opacity, offscreen pausing. Use when implementing, reviewing or testing waapi and compositing for React, Vite, Next.js or Perfect_AI projects.
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---
name: zt-anime-waapi
description: WAAPI and compositing: production-level GPU-friendly transform/opacity, offscreen pausing. Use when implementing, reviewing or testing waapi and compositing for React, Vite, Next.js or Perfect_AI projects.
---
# WAAPI and compositing
## When to activate
Use on tasks involving **GPU-friendly transform/opacity, offscreen pausing**. For unrelated backend tasks do not load this skill.
## Implementation sequence
1. Specify timeline: targets, start/end states, duration, easing, repeat, pause, reversal, cleanup.
2. Import named Anime.js v4 APIs into client-only lifecycle; do not use v3 anime({...}) signatures.
3. Use transforms and opacity for animation; sequence with timeline rather than disconnected timeouts.
4. Bind scroll to normalized progress and apply exactly one owner per property.
5. Implement reduced-motion and cleanup; test reverse scroll, refresh at mid-scroll and resize.
## Task-specific requirements
- Scope: **GPU-friendly transform/opacity, offscreen pausing**. Design the full execution path, not a screenshot placeholder.
- Identify dependency version and actual supported API signature; avoid inventing APIs.
- Use original code, or install licensed upstream through its maintained tool if the user wants upstream code.
- Choose measurable states, error handling, accessibility and performance budgets.
## Implementation starter
**Implementation notes:** Model GPU-friendly transform/opacity, offscreen pausing as explicit states, define input/output props and independent cleanup. Read master reference(s) below before writing code.
## Evidence / acceptance
- Prove deterministic playback in forward/reverse scroll; no timer leaks; reduced-motion shows full content.
- Test common, edge, interrupted, accessibility and responsive states; provide concrete artifacts/evidence.
## Deep references
- `../perfect-ai-master/references/01-animejs-motion.md`
- `../perfect-ai-master/references/06-motion-recipes.md`
- `../perfect-ai-master/references/16-animejs-api-matrix.md`
