Groups related materials into families with.

Fence can be combined with the corner section to enclose a storage area. A group of street objects provides lighting, benches and signs along the pedestrian route. The mountain district.

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.

Leading towards the lookout. The harbour reference describes warm windows, shaded entrances and reflective surfaces. The collision outline follows the primary shape and excludes decorative surface details. Objects with repeated dimensions can form a longer boundary along.