title: Open GL - ES 2.0 : Drawing a simple line
body: <p>I have spent quite some time and effort trying to figure out how to draw a line in opneGL es on the iPhone. Here is my code</p>
  
  <pre><code> myMagicVertices[0] = -0.5;
      myMagicVertices[1] = -0.5;
      myMagicVertices[2] = 2.0;
      myMagicVertices[3] = 2.0;
  
      glDrawElements(GL_LINE_STRIP, 2, GL_UNSIGNED_BYTE, myMagicVertices);
  </code></pre>
  
  <p>But all I see on the screen is a blank screen. I am at my wits end. Can any body point me to the right dirrection</p>