Reality… what is it?

This is a photo taken with a virtual camera In a virtual world in Virtual Reality. It was taken at the bottom of the sea but it could be the surface of another planet.
It begs the question: what is reality? Is it the same reality now knowing what the picture actually is? Does it matter? Does it depend on our own point of view?
We could have just said that it was the Sahara Desert and you might have believed it.