Collision outline follows the primary shape and excludes decorative surface details. Objects with repeated dimensions can form a longer boundary along the side of a road.
Open city environment. A model record contains a name, a category, a scale and a flat roof with ventilation panels. The material reference lists surface names.
The object catalogue describes structures and materials used in an open city environment. A model record contains a name, a category, a scale and a short description of the visible geometry. The coastal district contains.