Mike Sibley   Comment Posted Jan.31st, 2010, viewed 3 times

<<...the ghost of diagonal shading on the light side of the building is a bit reminiscent of rays of sun light hitting that face. Might have a use as an application in the right drawing.>>

Definitely useful. So the moral of this story is... unless you shade so the lines don't show, attempt to shade in a direction that suits the object or purpose rather than shading randomly. :o)