The magic word to find the actual wording of the law on any subject is "statute":
Nevada public nudity statute
There are the statutes, then there are the cops trying to keep the peace, to keep one guy from messing up the neighborhood for others. They can either leave you alone or charge you with disorderly conduct based on whether or not you are bothering other people in public.
So in the end, take your public nudity shots at a time, at a place, and in a manner that won't cause anyone to call the cops and you'll be fine. Or, offend a mom with her kids and you'll be fined.
In other words, you don't want anyone to call the cops. Never mind the law. When, where, and how can you shoot so that no one calls the cops?