How to assign a dictionary of key/value render settings from json to Maya's render settings

[craig_kane]

Hi

I want to apply a dictionary of key/value data from a json file into Maya's render settings.

Currently, I have a dictionary of 16 items formatted as follows:

{u'defaultRenderGlobals.blurSharpness': 1.0, u'defaultRenderGlobals.enableDefaultLight': False}

I am unsure how exactly I should loop through the data and assign it all to the correct attributes inside Mata using cmds.setAttr() command. 

Could anyone suggest a good method to assign them all? I am aware that Maya recommends it's own function to load the full render setup json, but here I am looking for a way so assign only certain arrays as required. For instance, I might only want to assign the settings values from all defaultRenderNodes.

Thank you,

Craig

[Kahylan · Accepted solution]

Hi!

First you need to import your dict from the json file.

Then you either iterate through keys and then call values in the loop:

import maya.cmds as mc

dict = importedDictionary

for key in dict:

    cmds.setAttr(key,dict[key])

Or you unpack your dict with the .items() function first:

import maya.cmds as mc

dict = importedDictionary

for key,value in dict.items():

    cmds.setAttr(key,value)

The second is considered more readable and pythonic, but it doesn't really make a difference.

I hope this helps!

[craig_kane]

Thanks Kahylan, worked perfectly! Appreciate the help.