enableLighting = true causes black globe on Android

[jdarpinian]

On my Pixel 2 XL in Chrome 74, setting enableLighting to true causes the globe to render as completely black. I don't see any errors in the console. It seems to be an issue with the combination of showGroundAtmosphere and enableLighting, as disabling either of them brings the globe back.

Can be reproduced in this sandcastle: https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/?src=Ground%20Atmosphere.html

[OmarShehata]

Thanks for reporting this @jdarpinian. I can reproduce this on my Pixel 3 in Chrome as well. I can also see that zooming in enough once you get to the fade out distance will trigger the globe to render again. But I don't see a separate code path that triggers when this fade reaches 1 or 0 in this shader:

https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Shaders/GlobeFS.glsl#L286

@bagnell any idea here?

[verybigzhouhai]

@OmarShehata @jdarpinian I guess this is due to the structure, because this will not be reproduced on the pc platform, ios platform, Huawei mobile phone. the platform using Qualcomm processor seems to have this problem, I am removing all the structs, when I finish After working, I can confirm whether to solve this problem. #7651

[hst-m]

This issue still occurs on android chrome, is it possible to fix?

[zon-creativeworks]

Still presenting as an issue on both iPad OS and the latest Android version on a OnePlus 9 Pro.