Just noticed this and I checked the documentation demo as well: Babylon.js - Worker mode
The youtube video shows the worker thread rendering but the demo in my chrome (Version 92.0.4515.131 (Official Build) (64-bit)) isn’t. Console throws
ReferenceError: window is not defined
ffox is throwing
Unfortunately your browser does not support Offscreen canvas API, which I suppose is fine…
Anyone else experiencing same issue ?