The drops flicker in OSX Chrome 84 for me. Works in other browsers.
Not surprising though. This 2017 Macbook Pro's integrated gfx (Intel Iris Plus Graphics 640 1536 MB) seems incapable of rendering any 3D games after 2010 without flickering at some point. It's one reason I'm still playing Morrowind (2002).
It _is_ really weird, that didn't use to happen either. Started happening after some update of either Chrome or macOS, I'm not certain which.
In fact I think this is one of the most frustrating things of working with WebGL (or any of those slightly less common browser APIs, really), lots of small weird compatibility issues and instabilities.
Not surprising though. This 2017 Macbook Pro's integrated gfx (Intel Iris Plus Graphics 640 1536 MB) seems incapable of rendering any 3D games after 2010 without flickering at some point. It's one reason I'm still playing Morrowind (2002).