code: function( mode, count, offset ){
      count  = ( count === undefined  ) ? this.size/this.typeSize : count;
      this.gl.drawElements( mode, count, this.type, 0|offset );
    }
docs: Shortcut to gl.drawArrays
  @param {GLenum} mode the type of primitive to draw (GL_TRIANGLE, GL_POINTS etc)
  @param {uint} [count] the number of indices to draw (full buffer is used if omited)
  @param {uint} [offset=0] the position of the first index to draw