UnionFilter
Combines several input filters, matching the union of all the locations matched by them.
user
Container for user-defined plugs. Nodes should never make their own plugs here, so users are free to do as they wish.
enabled
The on/off state of the filter. When it is off, the result of the first input is passed through unchanged.
out
The result of the filter. This should be connected into the “filter” plug of a FilteredSceneProcessor.
in
The filters to be combined. Any number of inputs may be added here.