Small Cylinder renders poorly on MacOS

CesiumJS
1

This Sandcastle renders a Cylinder.
It looks good on a windows machine, and looks bad on a MacOS machine.

Windows:

Windows
Windows1211×781 82.1 KB

Mac (10 meters):

Mac
Mac1240×940 33 KB

Mac (30 meters):

image (16)
image (16)1269×952 46.4 KB

The radius seems to be the main culprit. Increasing the radius improves rendering, but doesn’t fix it.
Any idea why?

2

Here are some WebGL reports:

Windows machine which renders a cylinder well:

Windows-good-render
Windows-good-render1384×904 121 KB

MacOS machine which renders a cylinder well:

MacOS-good-render
MacOS-good-render1554×2444 305 KB

MacOS machine which renders a cylinder poorly:

MacOS-bad-render
MacOS-bad-render1920×1246 213 KB

3

Hi there,

We’re seen some issues on machines with M1 chips with precision, including Tileset Highlighting Distortion (M1 hardware on iOS 12) · Issue #9907 · CesiumGS/cesium · GitHub and Tracking Entity - Path Jitters on iOS & new M1 Macs · Issue #9417 · CesiumGS/cesium · GitHub. These appear to be linked back to a webkit bug related to precision on M1 chips.

Is the version of both OS and browser up to date? Additionally, I believe there is a fix in the latest version of Chrome Canary.

Thanks!