title: glDrawElements with constant normal
body: <p>I was just curious if you can specify constant normal when drawing with single call of DrawElements. I'm using VAOs and VBOs so it's not that problem because I load them once for all vertices and just store VBO ID, but I could free some memory in graphic card.. </p>
  
  <p>this is the way you need to load data into graphics:</p>
  
  <pre><code>glBindBuffer(GL_ARRAY_BUFFER,VBO[Grid][Normals]);
  glNormalPointer(GL_FLOAT, sizeof(vector3f), 0);
  glEnableClientState(GL_NORMAL_ARRAY);
  </code></pre>
  
  <p>As I specify some 5x5x5 grid and then use indices to create cubic surphace, it's not much to deal with normals and using some constant would help :)</p>