Group A keeps the 15 metadata-only shader-transition demos on GSAP with explicit runtime
fields because their sole GSAP timeline is a WebGL or Three.js progress driver with no
author motion to port. The pre-existing gsap_timeline_registered_before_async_build lint
finding on code-shader-dissolve is unrelated to this change; only its registry-item.json
was touched, not its .html file.
Group B ports transitions-3d, transitions-grid, and transitions-distortion fully to
anime.js, sets runtime to animejs, and removes the GSAP dependency from those
compositions.
Group C splits transitions-destruction: title/outro card motion now runs on a separately
registered anime.js timeline, while GSAP remains for the burn-canvas driver and coupled
scene crossfade, so the registry runtime remains gsap.
Round 2: forEach over named const arrays, direct window.__timelines
member registration, no-op .call labels. Fixes four silent-data-loss
bugs: mutated arrays trusted at initial literal, helper declarations
dropped without expansion, bare reassignment and loop counters treated
as constants (which also overcounted round-1 conversions; 9 files
honestly demoted to manual). Final: 28 converted / 2 warnings / 117
manual. Shared finitePositiveNumber extracted in eval scripts.
Gate re-run passes 8/8. Duck-typed anime wrappers lacking a readable
duration now prime via a large clamped seek. The animejs-adapter fixture
had two registered timelines animating scale on the same element, which
is order-dependent under independent seeks; corrected per the new
one-property-owner contract rule recorded in U3-GATE-RESULT.md. Eval
scripts get the scripts-convention fallow suppressions.
Anime.js 4.5.0 timeline children added at position greater than zero do
not render their from-values until the timeline has been sought past
that position once; a cold seek to frame 0 left them untouched. Prime
each instance once at registration (seek to duration, back to 0),
mirroring the GSAP adapter's totalTime nudge. Covers keyed and legacy
array registrations. Found by the U3 determinism gate.
Allow timeline registry lint to accept hyperframesAnime.register() and __hfAnime.
Treat registered finite anime instances as duration sources.
Add anime.js registration, autoplay, and infinite-loop diagnostics.
Make the validate CDN-timeout hint engine-neutral.
Adds focused anime.js 4.5 determinism fixtures plus a Puppeteer gate that compiles and serves each fixture through the producer runtime path, then checks repeat seeks, out-of-order seeks, backward seeks, bounds behavior, and anime engine activity from DOM snapshots.
