title: Managing different resulution phones with openGL ES
body: <p>I am learning openGL ES 2.0 to make a game for android.</p>
  
  <p>I was wondering how different resulution screens would affect my program?</p>
  
  <p>I have made a sample program of a spinning triangle and noticed that when I turn my device sideways the triangle gets smaller and is at a different distance form the the edges.</p>
  
  <p>How does this work and how am I supposed to make a game which works nicely on different devices?</p>