The catalogue groups related materials.

Open city environment. A model record contains a name, a category, a scale and a short description of the visible geometry. The coastal district.

Short description of the visible geometry. The coastal district contains warehouses, loading platforms and narrow service roads. Concrete supports connect the elevated walkway to the foundation beside the plaza. The catalogue groups related materials into families with matching surface characteristics. Review the reference.

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.