docs: def expose_init(self, *args):
          """Process the drawing routine
          """
          # Obtain a reference to the OpenGL drawable
          # and rendering context.
          gldrawable = self.get_gl_drawable()
          glcontext = self.get_gl_context()
  
          # OpenGL begin
          if not gldrawable or not gldrawable.gl_begin(glcontext):
              return False
  
          # logger.debug("expose_init")
  
          # Reset buffers
          glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
  
          # Prepare name stack
          glInitNames()
          glPushName(0)
          self.name_counter = 1
  
          return False