I use draw_geometries_with_animation_callback to display a animation, but i can not save it to a video.how to do it #3820

I use the code in the example and successful display of animation, then i want to save the animation to a video, i do not know how to do it

def custom_draw_geometry_with_rotation(pcd, fov_step=-90): def rotate_view(vis): ctr = vis.get_view_control() ctr.rotate(3, 0) return False o3d.visualization.draw_geometries_with_animation_callback([pcd], rotate_view, width=1080, height=1080)