title: Mirroring the Y axis in SFML
body: <p>Hey so I'm integrating box2d and SFML, and box2D has the same odd, mirrored Y-axis coordinate system as SFML, meaning everything is rendered upside down. Is there some kind of function or short amount of code I can put that simply mirrors the window's render contents?</p>
  
  <p>I'm thinking I can put something in sf::view to help with this...</p>
  
  <p><strong>How can i easily flip the Y-axis easily, for rendering purposes, not effecting the bodies dimensions/locations?</strong></p>