resolutionScale related lighting issue

[vinstics]

Sandcastle example: sandcastle

Browser: Chrome 78

Operating System: Windows 10 1903

Monitor: 14 inch 3200x1800 250% zoom

Browser Zoom: 100%

Set "viewer.scene.globe.enableLighting = true" can replicate the problem. Happens only when devicePixelRatio not equals 1.
And, images near the pole seem to be strange.

[OmarShehata]

@vinstics this is a known issue. We have a fix for it here: #8351

In the mean time you can fix it by setting:

viewer.resolutionScale = 1.0 / window.devicePixelRatio;

This brings the resolutionScale back to the old behavior as of 1.61 (see the explanation of this change here: https://github.com/AnalyticalGraphicsInc/cesium/blob/master/CHANGES.md#additions-tada-2).

[vinstics]

@OmarShehata Thanks a lot. I'll turn off lighting and wait for the fix since I have to render model at native device resolution. By the way how about the image near the pole, is it normal?

[OmarShehata]

@vinstics I believe the poles look like that when the imagery layer does not cover the poles, and so CesiumJS will stretch the pixels to fill the gap.