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This might be a bit of a weird one, but I'm looking to write a Python node that will, upon a user's input of a folder path, replace itself with a node group that contains itself and other nodes based on the contents of the folder. I'm trying to perform this transformation:

MyNode

User inputs folder path

MyNodeGroup:
    MyNode
    Other Nodes

Is this possible?

I imagine I'd have to create and instance the group immediately, then move my node into it along with any other new nodes that I need. If it's not possible to move an existing node into a group, could I create an identical node and then delete the old?

Any advice on this problem is greatly appreciated!

Edit: Or, if groups are not the most appropriate mechanism for this, is it possible to maintain other nodes inside my node internally?

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  • $\begingroup$ Not sure that replacing the node is the way to go but you can customise the contents of a node. In blenders text editor goto Templates->Python->Custom nodes. Also see the chosen answer to this question. Another option would be an addon that creates a panel in the toolbar where the user chooses the folder and clicks generate. (look at the node wrangler addon) $\endgroup$
    – sambler
    Commented Mar 27, 2014 at 2:56

1 Answer 1

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You can probably write a script that generates such node setup after being given a file path. Use the single selected node to read its inputs and outputs, then delete it by the script and attach generated nodes' IO to what you read.

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