title: MSAA black edge jaggies similiar to pre-multiplied texture
body: <p>I am trying to render a smooth AA text.</p>
  
  <p>I've created a polygon mesh using a tessellator, then using a MSAA pass to get smooth edges.</p>
  
  <p>*Weirdly the MSAA pass will result with black jaggies, around the edges (similar to pre-multiplied texture)
  <a href="http://i.imgur.com/cywPSoE.png" rel="nofollow">http://i.imgur.com/cywPSoE.png</a></p>
  
  <p>Weirdly because if I do a unpremultiplication the result is fine! ,see second attachment:
  <a href="http://i.imgur.com/W06Id18.jpg" rel="nofollow">http://i.imgur.com/W06Id18.jpg</a></p>
  
  <p>I am almost 100% positive its the MSAA that causes this issue because If I turn the MSAA off, I get the regular white jaggies (steps) </p>