Bugzilla

For what it's worth, I see both behaviors (smooth and not-smooth) when testing current Nightly, on macOS Catalina.

Here's a screencast. The very first animation here is smooth, and then the ones that follow are mostly not-smooth, except near t=15s where I open a second tab and the animation is smooth again after that.

Not sure if there are particular triggers that make the animation smooth or not-smooth; or, perhaps this is just a perf issue where we're sometimes not quite fast enough to play the animation for whatever reason and it gets skipped.

For what it's worth, I see both behaviors (smooth and not-smooth) when testing current Nightly, on macOS Catalina.

Here's a screencast. The very first animation here is smooth, and then the ones that follow are mostly not-smooth, except near t=15s where I open a second tab and the animation is smooth again after that.

Not sure if there are particular triggers that make the animation smooth or not-smooth; or, perhaps this is just a perf issue where one piece of code is falling behind another, and we miss our chance to play the animation.

For what it's worth, I see both behaviors (smooth and not-smooth) when testing current Nightly, on macOS Catalina.

Here's a screencast. The very first animation here is smooth, and then the ones that follow are mostly not-smooth, except near t=15s where I open a second tab and the animation is smooth again after that.

Not sure if there are particular triggers that make the animation smooth or not-smooth; or, perhaps this is just a perf/synchronization issue where one piece of code is falling behind another, and we miss our chance to play the animation.