nodeToText

Node To Text

Convert the selected nodes knobs:values to a .json.

Use

1. Copy/paste the script in the Script Editor.

2. Make sure the node you are going to export is registered in the <config_dict>. If not looks at <config_dict> docstring to know how.

3. Select the nodes you want to export.

4. Execute script.

5. A file dialog will appear, give a full path to the desired location of the .json file.

Dev

Logging

Logging is by default set to debug. You can modify the line ~53 where logger variable is declared by passing the desired logging level.

Supporting more nodes.

The script was made to support any kind of node as long as you set up them. To do so you have to extend the config_dict variable :

level0

[key] (str): identifier for node type

[key:value] (dict): data for processing

Each key is just used as an identifier internally. Should correspond to the type of your node. ex: Grade, Roto, myCustomNode, ...

See the under to see how the value dict is built.

level1

[key:value.key=check:value] (function) : function used to determine if a node correspond to current [key].

Args: node(nuke.Node): Nuke node Returns: bool: Where True means the node correspond to current [key]. [key:value.key=data:value] (dict) : data that will be extracted from the node (see under)

There is only 2 key possible at this level : check or data.

level2

Determine waht is exported from the node, and how it is stored in the .json If they key is without a $, it is assumed to be a knob's path and will be stored as such : {value:node.getKnob(key).value()}

[key:value.key=data:value.key] (str) : path of the knob on the node [key:value.key=data:value.key:value] (str) : key name of the knob's value in the output dict.

[key:value.key=data:value.key=$(any):value] (function) : if the key start with a $, the exported result will be {$key:value(node)} the value must be a function as such : Args: node(nuke.Node): Nuke node Returns: any: the returned with be used as

[key:value.key=data:value.key=$id:value] (function) : special key that is mandatory. This dict value, once evaluated, must allow to identify the source node. The returned value by the function must be a string.

example

Here is an example to export the Grade's node. We choose to only export the gain and gamma knob. For the demo we also export the gain knob named as add in the .json.

config_dict = {
    "Grade": {
        "check": lambda node: True if node.Class == "Grade" else False,
        "data": {
            "$id": lambda node:
                "{}_{}".format(node.name(), node.knob("gain").value()),
            "gain": "add", 
            "gamma": "gamma",
        }
    }
}

We then select our only grade node, and this is a potential result :

{
  "0" : {
    "$id":"Grade3_0.85",
    "add": 0.85,
    "gamma": 1.0
  }
}