Originally Posted by
icosahedron
Unfortunately, my first attempt with shadows in Viewingdale was a failure: the dais in the throne room of my castle.
As I described in my blog somewhere, as you enlarge the steps, you also enlarge the shadow and this looks wrong because the shadow radius is proportional to the dais radius in a drawing, but proportional to the step height in reality. Consequently, the three concentric steps of the dais look like they're different heights as well as different radii.
(It's too small to see in the picture here, but there's a detail in my blog.)