Number of cascades to split the view frustum into for the whole scene dynamic shadow. More cascades result in better shadow resolution, but adds significant rendering cost. User settings will set a maximum.

Controls how cascades 2+ are distributed between the first cascade boundary and the far clip. 0 is uniform, 1 is fully logarithmic.

Color of the ambient sky color This is kept for long term support, the recommended way to do this is with an Ambient Light component.