high dynamic range (HDR) explenation

Is anyone can explain what is the highDynamicRange (HDR) and when should I use it?

(The default value is true and it make the ImageryLayers darker)

This article has a good explanation and some pictures: https://learnopengl.com/Advanced-Lighting/HDR

However, since most lighting values in Cesium are not using this higher ranger, things appear darker/paler. There’s a discussion here on disabling it by default, or only allowing it for 3D models which do use the higher range: https://github.com/AnalyticalGraphicsInc/cesium/issues/7966

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