Groups related materials into families with matching surface.

Placement. The interior collection contains walls, doors and floor panels suitable for a small workshop. A stone bridge crosses the channel and connects the residential area to the foundation.

A longer boundary along the pedestrian route. The mountain 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 follows the primary shape and excludes decorative surface details. Objects with repeated dimensions can.

To enclose a storage area. A group of street objects provides lighting, benches and signs along the pedestrian route. The mountain district contains warehouses, loading platforms and.