A flat roof with ventilation.

Outline follows the primary shape and excludes decorative surface details. Objects with repeated dimensions can form a longer boundary along the pedestrian route. The mountain district contains warehouses, loading platforms and narrow service roads. Concrete.

Describes structures and materials used in an 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, colour variations and recommended combinations. Road.

Model record contains a name, a category, a scale and a short description of the visible geometry. The coastal district contains rock formations and curved paths leading towards the lookout. The harbour reference describes warm windows, shaded entrances.