2d-inc / Flare-JS

Flare Javascript ES6 runtime with Canvas rendering.
https://flare.rive.app
MIT License
265 stars 59 forks source link

WIP Run Flare-JS in a WebWorker with an offscreencanvas #6

Open sanbornhilland opened 5 years ago

sanbornhilland commented 5 years ago

This is not intended to be merged. The intention is to provide a working example of how Flare-JS, with some minor changes, could be run in a WebWorker using an OffscreenCanvas. In principle being able to run in a WebWorker is extremely useful for applications that need to keep the main thread free for heavy UIs or other intensive tasks that need to run on the main thread like video. For some reason the frame rate in this example rapidly declines but I have another more heavily modified example that maintains a high frame rate and I'm not sure what the difference is.

The key change here is swapping in svg.js for createElementNS in order to decouple Flare-JS from the DOM. The rest is fairly straightforward, though I don't know if there are other features that rely on the DOM that just aren't being used in this example.