Instead of string-replacing the %V, you can evaluate a knob for a given
view (using the undocumented Knob.evaluate(view=...), reported bug
#16873 to get it documented):
n = nuke.thisNode()
for curview in n['views'].value().split():
curdir = os.path.dirname(n['file'].evaluate(view = curview))
if not os.path.exists(curdir):
os.makedirs(curdir)
Nathan Rusch wrote:
> The easiest solution seems to be to just loop through each view that the
> Write node is set to render. Something like this:
>
> n = nuke.thisNode()
> outFile = n['file'].value()
> for v in n['views'].value().split(' '):
> viewDir = os.path.dirname(outFile.replace('%v', v))
> if not os.path.exists(viewDir):
> os.makedirs(viewDir)
>
> This isn't as complete as it probably should be (for alternate/special
> case handling), but you get the idea.
>
> Also, keep in mind that this will break if you have view names
> containing spaces. There are other workarounds for that situation...
>
> -Nathan
>
> -----Original Message----- From: Holger Hummel|Celluloid VFX
> Sent: Thursday, March 31, 2011 12:49 PM
> To: Nuke Python discussion
> Subject: [Nuke-python] beforeRender and stereo views
>
>
> Hi all,
>
> i ran into a small issue here regarding the beforeRender knob on the
> write node.
> i want to set up a function call to create the necessary output
> folder(s) for a write node on a stereo project. when calling that
> function - say 'createFolders()' - it does that only for the left view
> but not the right view. in the write node's file knob there's the "%v",
> of course and i'd like to separate the left and right view into
> different folders by that. first, i used
> "nuke.thisNode()['file'].toScript()" to pass the folder to the function.
> that did not work at all - of course. then i tried
> "nuke.thisNode()['file'].evaluate()" which does create the folder for
> the left view only and rendering the right view fails with nuke saying
> that the folder does not exist.
> anybody knows how to deal with this? is there a nice way of doing this
> or do i really have to check inside my function whether it has the "%v"
> and then do it inside the function?
> any help/hint is appreciated.
>
> cheers,
> Holger
>
>
--
ben dickson
2D TD | [email protected]
rising sun pictures | www.rsp.com.au
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