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DISCLAIMER: I rewrite my post upon the latest success to not flood my own post with already solved parts so I left only the part that really is still not working...

PROBLEM: I need to replace all nodes of one material with all nodes of another linked material from another external .blend file via script.

I ALREADY HAVE ALMOST COMPLETELY WORKING SCRIPT NOW ALL MADE BY MYSELF AT LEAST, except the last thing: copying links between nodes...

Does anyone know how exactly write those two parameters, please?

I am using Blender v2.70.5

P.S.: I need strictly SCRIPT BASED ANSWERS ONLY...I know how to do it manually, of course

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  • $\begingroup$ The answer may be more complex than you hope. There is a rather large contrib addon called online_material_library that exports materials to xml and imports them. There is also a patch that updates it for the new group api as well as support for nested groups. Maybe you could use that or adapt it to bypass the xml file step. $\endgroup$
    – sambler
    Commented May 13, 2014 at 7:45
  • $\begingroup$ @sambler: did you noticed I edited my post stating I WAS ABLE TO DO IT except the last part of simple copying links from nodes? ;) So now I think it can be quite easily done like this I just still didn't figured out how to extract just the values itself from every link in node.links, or even better said: I am able to obtain every link values but when I try to apply it to nodes it says there is problem with type of value $\endgroup$
    – bublible
    Commented May 13, 2014 at 11:09
  • $\begingroup$ @admins: please flag this post as [SOLVED] as I come to solution myself as described above...thanx ;) $\endgroup$
    – bublible
    Commented May 13, 2014 at 16:26
  • $\begingroup$ @bublible Feel free to put your script in an answer below and accept it. Answering your own question is in fact encouraged, and to be "solved" a question needs an accepted answer. $\endgroup$
    – gandalf3
    Commented May 13, 2014 at 18:44

1 Answer 1

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So I finally made it myself again after several hours of playing with the code (see I am actually FLASH ActionScript2 guy so it took me like 2 weeks to understand syntax of Python, its objects etc. and get used to it but now I have fully working script!!!).

The right solution is this:

# ...some quite long code here and now:
for r in _mNews.links: 
    _mOld.links.new(_mOld.nodes[r.from_node.name].outputs[r.from_socket.name], _mOld.nodes[r.to_node.name].inputs[r.to_socket.name])
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