title: How to achieve full-scene antialiasing on the iPhone
body: <p>I would like to achieve <a href="http://en.wikipedia.org/wiki/Anti-aliasing#Full-scene_anti-aliasing" rel="noreferrer">FSAA</a> on my OpenGL ES app on the iPhone.</p>
  
  <p>Currently I do this by rendering the scene to a texture that is twice the width and height of the screen. I then use the nice function:</p>
  
  <pre><code>void glDrawTexiOES(GLint x, GLint y, GLint z, GLint width, GLint height);
  </code></pre>
  
  <p>to draw the image resized to the screen resolution.</p>
  
  <p>Is there a better way to do this?</p>
  
  <p><strong>Update Bounty Added</strong> I was wondering, given that its now Jan 2010, whether there is a better way to do this on v3.1 3GS phones, etc.</p>