title: Draw all textures flipped?
body: <p>First off, with my background in XNA i just cannot get used to the inverted Y axis. So in LibGDX i flipped the <code>OrthographicCamera</code> with <code>cam.setToOrtho(true,width, height)</code> but this obviously ends up in drawing all my textures upside down.</p>
  
  <p>I can create <code>Sprites</code> and <code>TextureRegions</code> from all my textures to flip each and every one of them but that takes a lot of extra code. So is there a efficient way to have all my textures flipped around there center?</p>
  
  <p>I tried adding a flipped matrix to the <code>spritebatch</code> <code>transformMatrix</code> but that cancels out the flipped ortho cam. I also tried to create a <code>Sprite</code> for drawing all my textures and flips them but without success.</p>