An example of using collection linking is when You build a set. So you have 4 walls and the set pieces of a living room. You’re doing a shot facing the entrance. You’d have one wall removed where the camera is and any objects that aren’t normally seen from this angle. That’s collection 1. Then you have a shot where the entrance is behind the camera. This will have the 2 side walls, the missing wall, and most of the same pieces. This would be collection 2. As you can see this makes it quicker to switch. Instead of having to turn on/off walls and then pieces that aren’t seen. There are other uses like collection instancing, and particle systems, view layers, etc.
