Hi Maria,
Typically, when exporting scenes, you can export two types of information. The first type of information is semantic information, for example, the length and curvature of roads, lanes, and things like permitted maneuvers, traffic signals and driving directions. Exporting to the Apollo format would include this type of information as you have notices.
The second type of information is a geometric or triangulated mesh of the scene, for example, the individual trees, roads, road lights and traffic lights that you mentioned. Popular file formats that include this information are Filmbox but you can easily export a scene to other formats too, depending on your use case.
We also have specialized exporters that typically contain both types of information (Geometric Mesh and Semantic). For example, there are exporters for Unity and Unreal that come with plug-ins. There are also specific exporters for CARLA, Metamoto, DataSmith and VTD.
