Surface details. Objects with repeated dimensions can form a longer boundary along the pedestrian route. The mountain district contains rock formations and curved paths leading towards the lookout. The harbour reference describes cargo containers, mooring.
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 and reflective surfaces. The collision outline.
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.