Weird graphical effects on Grass in DA:I on PC

To me it looks like the game engine rendering of clouds and sun moving across the grass.  If you look in the background you can see the same light and darkening effect on both the mountains and the tower, as clouds move in the sky. 

Now maybe I am just missing it....I did grow up during the Atari 2600 days and to me all new graphics look awesome, even those that people say is junk.....