RealFlow’s “Relationship Editor” is a node-based system for defining the interactions between the scene’s nodes. The main purpose is to establish global and exclusive connections between a scene’s nodes.
In this example, all nodes are able to interact, because they are connected via the → "Hub01". This is RealFlow's default mode, and the hub will be created automatically when the first scene node is being added.
To avoid automatic linking, disable Edit > Add > Add to Default Hub.
Here, the particles of the three Dyverso domains are able to interact with each other and the "Cube01" object.
The "Gravity" daemons act on each domain selectively – they are exclusive to their associated domain:
Scene nodes can also be connected directly without a hub. In the image below, the domains, meshes, objects, and daemons build separate groups and are not able to interact.
This example is almost identical with C, but the common "Gravity" daemon will be acting on the two domains, while the other connections remain exclusive.