       vbo.set_size(n*4)
       vbo.set_data(0, a)
       prog.set_attribute(att_name, 'float', [vbo, 0, 0])
-    return a
 
 attach_color = (prog, vbo, att_name, n, visual, prefix) ->
     # Attach the color attribute to the program. If there's just one color,

      # Get array of colors
      if visual[colorname].spec.value?
        colors = (visual[colorname].spec.value for i in [0...n])
      else
        colors = visual.cache[colorname+'_array']
      # Get array of alphas
      if visual[alphaname].spec.value?
        alphas = fill_array_with_float(n, visual[alphaname].spec.value)

      vbo.set_size(n*m*4)
      vbo.set_data(0, a)
      prog.set_attribute(att_name, 'vec4', [vbo, 0, 0])


class DashAtlas
