def _create_default_skybox(self, size=40000):
        """ Returns the default skybox, with a scale of <size>, and all
        proper effects and shaders already applied. The skybox is already
        parented to render as well. """
        skybox = self.common_resources.load_default_skybox()
        skybox.set_scale(size)
        skybox.reparent_to(Globals.render)
        skybox.set_bin("unsorted", 10000)
        self.set_effect(
            skybox, "effects/skybox.yaml", {
                "render_shadow": False,
                "render_envmap": False,
                "render_voxelize": False,
                "alpha_testing": False,
                "normal_mapping": False,
                "parallax_mapping": False
            }, 1000
        )
        return skybox
 Returns the default skybox, with a scale of <size>, and all
        proper effects and shaders already applied. The skybox is already
        parented to render as well. 
metadrive/render_pipeline/rpcore/render_pipeline.py