rlottie: A New Approach to Motion Graphics UI
summary
rlottie is an open-source standalone C/C++ library that parses Bodymovin/After Effects JSON and rasterizes Lottie animations into shareable RGB bitmap frames, usable without platform UI dependencies. It runs synchronously or asynchronously, ships as Debian/flatpak packages, and is integrated into Tizen (since 5.5), Galaxy Watch faces, and Telegram clients (about 40 apps reported). Runtime keypath overrides allow property changes and view-text mapping; prototypes show 3D transforms and live UI bindings working in production.
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chapters (23)
- 0:00Introduction to rlottie
- 1:27What is motion graphics
- 3:18Animation control and rendering
- 5:07Vector graphics and SVG
- 7:17Tizen's back graphics engine
- 9:11Challenges in vector animation
- 10:15Introduction to Lottie
- 11:19Lottie workflow and components
- 13:30Lottie visual components
- 15:58Lottie file structure
- 17:23rlottie architecture
- 18:30Key features of rlottie
- 20:40Basic rlottie usage
- 22:04Integration with Tizen UI
- 23:53Memory sharing with key buffer
- 25:41Dynamic property control
- 26:27Galaxy Watch use case
- 27:31Telegram messenger case
- 28:56Design verification steps
- 30:23Local preview tool
- 31:07Dynamic property customization
- 33:20Collective transition feature
- 36:12Future of rlottie
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