title: How to define 2d array in GLSL ES?
body: <p>I've tried this code.</p>
  
  <pre><code>varying vec2 blurCoordinates[2][2];
  </code></pre>
  
  <p>But it results in error:</p>
  
  <p>Vertex shader compilation failed.
      ERROR: 0:10: '[' : Syntax error:  syntax error
      ERROR: 1 compilation errors.  No code generated.</p>