       super
       @vertex = []
       @levelVertex = []
-#      @index = []
       @normals = []
 
    setUp: (@triangleVertex) ->
       gl = @gl
       @levelVertex = @levelVertex.concat( @triangleVertex )
-      #@vertex = @vertex.concat ( @triangleVertex )
       @addLevel(@levelVertex)
 
       # vertex

   draw: () ->
      @updateVertexPos()
      super
      #super @gl.LINE_LOOP


   updateVertexPos: ->
      gl = @gl
      # update local vertex
      @getLastLevelVertex ((i, b) ->
         @vertex.splice.apply(
