terrain shading and time-of-day

Is it possible to configure the terrain mesh modeling to utilize the sun modeling and time-of-day for correct shading? My initial test of this seems to suggest that the the terrain shading does not agree with the sun’s position. Perhaps there are additional parameters to enable this processing?

Thank you,

-Kirk A

Kirk - have a look at http://cesiumjs.org/2014/10/07/STK-World-Terrain-updated/