class_docstr: Class that provides a series of GL functions that do not fit
  in the object oriented part of gloo. An instance of this class is
  associated with each canvas.
docstr: Set which faces are front-facing
  
  Parameters
  ----------
  mode : str
      Can be 'cw' for clockwise or 'ccw' for counter-clockwise.
docstr_tok: ["Set","which","faces","are","front-facing","Parameters","--","--","--","--","--","mode",":","str","Can","be","'cw","'","for","clockwise","or","'ccw","'","for","counter-clockwise","."]
code: def set_front_face(self, mode="ccw"):
      """Set which faces are front-facing
  
      Parameters
      ----------
      mode : str
          Can be 'cw' for clockwise or 'ccw' for counter-clockwise.
      """
      self.glir.command("FUNC", "glFrontFace", mode)
  
imports: import numpy
  from copy import deepcopy
  from .None import gl
  from ..color import Color
  from ..util import logger
label_desc: Use image node_id 3 for calling the BaseGlooFunctions obj's underlying member method code with example usage: obj.set_front_face(mode) without return types