title: Motion Blur Emplementation on OpenGL ES
body: <p>I'm a novice in OpenGL ES 1.1(for IOS) texturing and I have a problem with making the effect of motion blur. During googling, I found that I should render my scene in different time moments to several textures and then draw all these textures on the screen with different alpha values. But the problem is that I don't know how to implement all this!So,my questions are:</p>
  
  <ol>
  <li>How to draw a 2D texture on the screen? Should I make a square and put my texture on it?Or may be, there is a way to draw a texture on the screen directly?</li>
  <li>How to draw several textures(one upon another) on the screen with different alpha values?</li>
  </ol>
  
  <p>I've  already come up with some ideas, but I'm not sure if they are correct or not.
  Thanks in advance!</p>