In Rhino3D Grasshopper the Geometry Pipeline input parameter allows referencing all Rhino3D geometry in one step, optionally filtered by layers and names.
To reference Rhino3D geometry into Grasshopper you normally use Geometry input parameters like this one:
And of course with one parameter like this, you may reference one or many points.
Then, there are parameters which demand you to draw the respective geometry in Rhino3D, like this one:
Anyway, what if you need to reference more than one type of geometry at once? For this, you can use the Geometry Pipeline input parameter:
As you can see, via this input component you can reference points, curves, breps and meshes – you just have to double-click the respective symbols to collect them.
Also you can filter by Layer and Name – by default they are marked with an asterisk which means all layers and names are taken into account. In the context menu you may define restrictions to that:
Basic information on Grashopper can be found here.
Grasshopper-ARCHICAD-connection: See here for more information.