How to import/export Render Setup with Python

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Render setup is very useful for managing render layers and it can import and export render layers for later usage. However, the information on how to import/export it in Python is quite sparse. After doing some research on our testing code, I found that it is quite easy.

There is renderSetup.decode and renderSetup.encode for import and export, respectively.

The prototype for decode is  decode(jsonObject, importOption, optionalPrefix), where
 – the jsonObject is the json string you’ll need to import;
 – the importOption could be one of the DECODE_AND_RENAME, DECODE_AND_MERGE, DECODE_AND_OVERWRITE value which you could find in the import dialogue;
 – the optionalPrefix is the prepend string and it could be None (if you don’t want a prefix) and it is only working with DECODE_AND_RENAME option.

The export command is easier, as it has only one parameter called Note. This valie can be “None” if you do not want to provide a Note.

import maya.app.renderSetup.model.renderSetup as renderSetupimport jsondef importRenderSetup(filename):    with open(filename, "r") as file:        renderSetup.instance().decode(json.load(file), renderSetup.DECODE_AND_OVERWRITE, None) def exportRenderSetup(filename, note = None):    with open(filename, "w+") as file:        json.dump(renderSetup.instance().encode(note), fp=file, indent=2, sort_keys=True)

You can use above code snippet to import/export your render setup in Maya.