This user has the following games installed:
Sims 3, World Adventures, Ambitions, Late Night, Generations, Pets, Supernatural, Seasons, University Life, Island Paradise, Into the Future
it rained and now my terrain looks like this..
this did not occur until after it rained I decided not to save and re-entered and the terrain was normal so I'm guessing its a weather/terrain related issue...
it kind of looks like bluish green transparent film/layer