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M11.4: Lottie export/import

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New crate effectcraft-lottie (L3): export a comp to Lottie JSON / dotLottie
(precomp and base64 image assets; shape, solid, null, precomp, image and text
layers or glyph shapes; transforms with parenting, separated position,
anchor; keyframes with speed/influence converted to normalised i/o tangents,
hold keys, spatial ti/to; all shape items incl. gradients, dashes, trim,
repeater and path operators; masks, track mattes, blend modes, time remap,
timing, markers, optional expressions, a few Lottie effects) with a warnings
list for what Lottie cannot express, and the inverse import. Commands
file.exportLottie / file.importLottie with File > Export / Import entries.
Round-trip tests (values and rendered frames) and hand-written fixtures.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Brandon Thomas
2026-10-02 08:56:03 -04:00
co-authored by Claude Opus 5.5
parent 5273f1ba96
commit c4100bcf80
32 changed files with 3767 additions and 4 deletions
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Cargo.toml
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@@ -25,6 +25,7 @@ effectcraft-render = { path = "crates/render" }
effectcraft-media = { path = "crates/media" }
effectcraft-export = { path = "crates/export" }
effectcraft-expr = { path = "crates/expr" }
effectcraft-lottie = { path = "crates/lottie" }
effectcraft-engine = { path = "crates/engine" }
effectcraft-host = { path = "crates/host" }
effectcraft-ui-egui = { path = "crates/ui-egui" }