Graphics Programs Reference
In-Depth Information
Since Nuke creates these nodes automatically, I don't know which node is Input1
and which is Input2 in your tree. Delete the one called Input2 because deleting
Input1willcauseabugtohappenwherethedeletedinputstillappearsinthemain
NodeGraphthoughdoesn'texistanymoreasanode.IfInput2isthenodeconnec-
ted to the Dot you will have to still delete it and then move the output of Input1
so it is connected to the input of the Dot.
4. Click Input2 and click Delete to delete it. If you need to, connect the Dot's input
to the output of Input1.
5. Switch to viewing the main Node Graph by clicking its tab.
You can see that the second input is now gone.
NowyouwouldliketochangetheActionSafearea,butyourKnobsarenotavail-
able—they moved to within the Group with NoOp1. This is not convenient at all.
Furthermore, this Group node can hold Knobs without needing a NoOp that does
nothing. The Group node can both group trees together and hold User Knobs.
Time to put that NoOp1 node to rest and move all its functionality into Group1.
First to generate some Knobs, including a new type of Knob to begin with.
6. In Group1's Properties panel, right-click (Ctrl-click) an empty spot and choose
Manage User Knobs from the contextual menu.
Now you're going to add another Knob you didn't have before. Remember that
you changed the Operation property for Merge2 to Difference. There are other
useable operations, and it's nice to have this property ready to be changed right
here in the Group's Properties panel. Instead of adding this Knob from the Add
menu, you can pick this Knob from your existing Knobs in the tree held within
the Group, using the Pick button.
Figure 12.35. The Pick Knobs to Add panel.
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