• Related to Implement real-time vector graphics rendering (e.g. SVG, Rive) #2924.

Describe the project you are working on

I'm the lead of the ThorVG project (www.thorvg.org). ThorVG is dedicated to the development of a vector graphics engine that supports both Lottie animations and SVG

Describe the problem or limitation you are having in your project

Lottie (https://lottie.github.io/) is quite popular and is now the industry-standard format hosted by the Linux Foundation. Similar to SVG, Lottie can be used not only for static but also for animatable vector graphics assets for UI, icons, and in-game content. In most cases, Lottie's feature coverage is quite similar to SVG, but it is smaller and more efficient in terms of interpeting / data size.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

By incorporating Lottie features, it is possible to improve the Godot development environment for various designs/apps demanded in the industry.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

Godot has already integrated the ThorVG library for SVG features, and ThorVG is prepared for Lottie support as well. There is no heavy lifting required from Godot for this integration. We only need to consider the animation frame control functions in Godot and binding to thorvg, based on the existing interfaces.

If this enhancement will not be used often, can it be worked around with a few lines of script?

There is no widely preferred animatable 2D vector format. While SMIL exists, it is no longer considered a viable option for products. Alternatively, GIFs or videos could be used in a limited way.

Is there a reason why this should be core and not an add-on in the asset library?

Godot editor also could use the lottie feature for UI assets.