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pythonnuke

How to attach Write node to Read node?

Well, I've just started getting into Nuke's API. Here I import the footage:

nuke.nodes.Read(file="E:/Final/Practice/MVI_8411.mov", name="Footage")

selected the footage (and stored in a variable):

footage = nuke.toNode("Footage")

When I pipe it to Write node, it doesn't work:

nuke.createNode("Write")

I create a Write node though, but it's not connected to Read node. I expected it to connect. Doesn't toNode() function selects nodes in non-GUI mode?

Solution

  • Pay particular attention to classes of nodes and their names in Node Graph. In the following example Read is a class, Read1 is a name.

    So try this script to get your Write node connected:

    import nuke as nk
import nukescripts

nk.nodes.Read(file="E:/Final/Practice/MVI_8411.mov")
nk.toNode("Read1").setSelected(True)
nk.createNode("Write")
nukescripts.connect_selected_to_viewer(0)

    or this way:

    import nuke as nk
import nukescripts    

nk.createNode("Read", "file E:/Final/Practice/MVI_8411.mov name footage")
nk.toNode("footage").setSelected(True)
nk.createNode("Write")
nukescripts.connect_selected_to_viewer(0)

    To find out what the class a node belongs to, create, for example, a CheckerBoard, select it and press i shortcut on your keyboard. You'll see its class is CheckerBoard2 and its name is CheckerBoard1.

    And in case you use a node of class 2 your lines should look like this:

    nk.createNode("CheckerBoard2")
nk.toNode("CheckerBoard1").setSelected(True)
nk.createNode("Write")

    Or your syntax would be like this:

    nk.nodes.CheckerBoard2(name="board")
nk.toNode("board").setSelected(True)
nk.createNode("Write")

    ...or just like that:

    nk.createNode("CheckerBoard2", "name board")
nk.toNode("board").setSelected(True)
nk.createNode("Write")