docs: def resize(widthWindow, heightWindow):
  	"""Setup 3D projection for window"""
  	glViewport(0, 0, widthWindow, heightWindow)
  	glMatrixMode(GL_PROJECTION)
  	glLoadIdentity()
  	gluPerspective(70, 1.0*widthWindow/heightWindow, 0.001, 10000.0)
  	glMatrixMode(GL_MODELVIEW)
  	glLoadIdentity()