title: Basic 2D colored triangle using three.js
body: <p>I am having issues creating a simple 2D scene with Three.js. I would like to create a 2D view on a colored triangle. I am not able to make the triangle colored (eg. red). I believe that I will need the following for that:</p>
  
  <ul>
  <li>THREE.OrthographicCamera</li>
  <li>simple triangle -> i.e. THREE.Geometry() colored in red</li>
  </ul>
  
  <p>I do not want any shadows, just a simple red 2D triangle in the orthographic scene.Any suggestions on how to make it are welcome.</p>