title: Setting the GLSL version on Mac
body: <p>How does one go about setting the GLSL version on Mac? Is this even possible? I'm running a fragment shader and would like to create an array of vec3s, but the shader compiler is producing an error indicating that I need to use a higher GLSL version. The specific error is</p>
  
  <pre><code>'array of 3-component vector of float' : array type not supported here in glsl &lt; 120 
  </code></pre>
  
  <p>Thanks for the help.</p>