Polygon lighting is significantly darker in 2D/CV

[hpinkos]

For the GeoJSON custom styling sandcastle demo, the polygons are bright and happy in 3D:

But are much darker in 2D and CV:

I wouldn't expect there to be such a big difference

[pjcozzi]

Related to or duplicate with #1825 (comment)

[ggetz]

Brought up on the forum here: https://groups.google.com/forum/#!topic/cesium-dev/CCzuJQRrX50

[hpinkos]

Also reported by @AndreasSvendby in #6630

[huochaimindy]

@hpinkos Hi! hpinkos, Now i have the same problem like this. Could you tell me what is the final solution about this issues, thanks!
#Polygon lighting is significantly darker in 2D/CV

[likangning93]

Heads up, seems like this can partially be worked around by adjusting the scene time so the sun is in a better location to light up the darkened elements.

[sofasama]

Heads up, seems like this can partially be worked around by adjusting the scene time so the sun is in a better location to light up the darkened elements.

@OmarShehata

It doesn't seem to solve this problem, the darker color doesn't change. Is there another solution?

[srothst1]

A community member made an interesting observation on polygon color accuracy in 2D. It seems like the color of a polygon is only altered in the 2D viewing mode if a height value is set.

The following sandcastle demo showcases this behavior.

[ashley-mort]

We see the same problem (using Cesium 1.60). We were using 2D and trying to set height:0 to avoid the problem where .pick doesn't work well when the map is zoomed out far (#8052) but then all our shapes displayed darker as shown by the previous post.

[ggetz]

Also reported in #11597