title: CATextLayer blurry text after rotation
body: <p>I have problem related with <a href="https://stackoverflow.com/questions/3815443/how-to-get-text-in-a-catextlayer-to-be-clear">question</a><br>
  I've set contentsScale and after that text looking good but if I apply the 3d rotation transformation the text comes out blurry.</p>
  
  <p>image <a href="http://dl.dropbox.com/u/17481057/tags.png" rel="nofollow noreferrer">here</a></p>
  
  <p>initialization code</p>
  
  <pre><code>    // init text
      textLayer_ = [CATextLayer layer];
      …
      textLayer_.contentsScale = [[UIScreen mainScreen] scale];
  
      // init body path
      pathLayer_ = [CAShapeLayer layer];
      …
      [pathLayer_ addSublayer:textLayer_];
  </code></pre>
  
  <p>rotation code</p>
  
  <pre><code>    // make the mirror
      pathLayer_.transform = CATransform3DRotate(pathLayer_.transform, M_PI, 0, 1, 0);
      textLayer_.transform = CATransform3DRotate(textLayer_.transform, M_PI, 0, 1, 0);
      [textLayer_ setNeedsDisplay];
  </code></pre>
  
  <p>For test i've rotated text separately during the initialization.</p>
  
  <pre><code>    // init text
      textLayer_ = [CATextLayer layer];
      …
      textLayer_.transform = CATransform3DRotate(textLayer_.transform, M_PI, 0, 1, 0);
      textLayer_.contentsScale = [[UIScreen mainScreen] scale];
  </code></pre>
  
  <p>Text can be rotated and remains clear<br>
  image <a href="http://dl.dropbox.com/u/17481057/tags_fun.png" rel="nofollow noreferrer">here</a></p>