scene.add_light() has no effect on cameras when using BatchRenderer

[bakiuzun]

Hi,
I'm trying to add a global scene light when using BatchRenderer, but it doesn't seem to be taken into account by the cameras. When I save the rendered images, the scene appears as if no light was added.
If I instead define the light directly inside the camera's lights parameter (BatchRendererCameraOptions), it works correctly — but this ties the light to a single camera. What I want is a global light shared across the whole scene, independent of the cameras.

Example code:

        self.scene = gs.Scene(
            sim_options=gs.options.SimOptions(dt=self.dt,substeps=2),
            viewer_options=gs.options.ViewerOptions(
                max_FPS=60,
                camera_pos=(6.0,0.0,4.0),
                camera_lookat=(0.0,0.0,1.0),
                camera_fov=40,
            ),
            vis_options=gs.options.VisOptions(
                rendered_envs_idx=list(range(self.rendered_env_num)),
                ambient_light=(1.0, 1.0, 1.0),
                shadow=False
            ),
            rigid_options=gs.options.RigidOptions(
                dt=self.dt,
                constraint_solver=gs.constraint_solver.Newton,
                enable_collision=True,
                enable_joint_limit=True,
            ),
            show_viewer=config['show_viewer'],
            renderer=gs.renderers.BatchRenderer()
        )

        self._dummy_cam = self.scene.add_camera(
            res=(64, 64), pos=(0,0,5), lookat=(0,0,0), fov=60, GUI=False
        )


        self.scene.add_light(
            pos=(0.0,0.0,1.0),
            dir=(0.0,0.0,-1.0),
            color=(1.0,1.0,1.0),
            intensity=30.0,
            directional=True,
        )
                     
        self.gs_drone = self.scene.add_entity(
            gs.morphs.Drone(
                file='urdf/drones/cf2x.urdf'
            )
        )

        self.camera = self.scene.add_sensor(
            gs.sensors.BatchRendererCameraOptions(
                res=(224,224),
                pos=(0.0,0.0,-0.05),
                lookat=(0.0,0.0,-1.0),
                entity_idx=self.gs_drone.idx,
                fov=90
            )
        )

Thank you