title: How can I create a 3D view of a grayscale depth map?
body: <p>I've got a grayscale depth bmp image. 
  How can I create a 3D model of it?
  In addition I've got a color bmp of the exact same image, which I would like to use as a texture for the model above.</p>
  
  <p>I was thinking about creating GL_QUADS and assign texture to each vertex, but I'm not sure which coordinates to use for the vertexes and textures. </p>