What do we mean by “choose the shape of the stretch ceiling”?
Only that everything that is more complicated than the classic single-level ceiling (multi-level, 3D) usually carries some kind of goal:
The shapes of the levels can be directly curved or even displayed in the form of a circle or a ring – special flexible profiles allow you to create a multi-level stretch ceiling of any complexity, without the use of drywall.
The main requirement for multi-level ceilings: the height of the room should allow their installation. After all, if a single-level stretch ceiling from the main can be lowered to 10 cm, then the second level will go even lower.