This is what I have for basically all nodes - but is GUI based
def listReadNodes(n=nuke.selectedNodes()):
text=''
result=''
line=0
# sort out nodes to find
if not n:
nodes2use=nuke.allNodes()
else:
nodes2use=n
# iterate through nodes and print the file path
for n in nodes2use:
if n.Class() in {'Read', 'ReadGeo2'}:
line+=1
result+= str(line)+') '+n['name'].value()+'
\t'+n['file'].value()+'\n'
print >> sys.stderr, result
return result
r =listReadNodes()
nuke.display("r", nuke.root(), "List of Read and ReadGeo Paths", 1500)
> On 15 Feb 2016, at 07:27, Howard Jones <[email protected]> wrote:
>
> Out of interest can you just use nuke.allNodes('Read') and see if they have
> an output and same for ReadGeo?
>
> Howard
>
>> On 14 Feb 2016, at 11:33 pm, Ben Dickson <[email protected]> wrote:
>>
>> Your recursive tree walking is probably going over every possible
>> combination of connections, when you only need to visit each node once
>> (since once you have checked all upstream connections from one node, there's
>> no need to check them again)
>>
>> This should be mostly equivalent to your "recursiveDependencies" method -
>> mainly it is just quicker, but it also handles when a node is disabled (by
>> only checking the primary pipe)
>>
>> def _get_upstream(starter, _visited=None):
>> """Get upstream nodes, handling disabled nodes sensibly
>> """
>>
>> if _visited is None:
>> _visited = set()
>>
>> elif starter in _visited:
>> # If a node is already visisted, it's inputs have already been
>> # inspected, so, skip.
>> return
>>
>> yield starter
>>
>> if ('disable' in starter.knobs()
>> and starter['disable'].value()
>> and not starter['disable'].hasExpression()
>> ):
>>
>> # Disabled permenantly (non-expression),
>> # only look at first input
>> first_input = starter.input(0)
>> if first_input is None:
>> # Node has no inputs (e.g empty Group with zero inputs)
>> return # done
>> else:
>> for n in _get_upstream(first_input, _visited=_visited):
>> _visited.add(n)
>> yield n
>>
>> else:
>> # Regular node, look at all upstream nodes
>> inputs = starter.dependencies(
>> nuke.HIDDEN_INPUTS|nuke.INPUTS|nuke.EXPRESSIONS)
>> for curinp in inputs:
>> for n in _get_upstream(curinp, _visited=_visited):
>> _visited.add(n)
>> yield n
>>
>>
>>> On 13/02/16 08:49, J Bills wrote:
>>> This might not be the most efficient, but we have this in place as part
>>> of a larger archive script, happy to share:
>>>
>>>
>>>
>>> import nuke
>>> import os
>>> import sys
>>>
>>>
>>> def recursiveDependencies(n):
>>> '''Given a node, find all upstream nodes. This works, but for moderately
>>> complex nuke graphs it can take a long long time, eg 516 nodes found in
>>> 1418 seconds'''
>>> thisDependencies = set(n.dependencies())
>>> if not thisDependencies:
>>> return set()
>>> dependencyDependencies = set()
>>> for nn in thisDependencies:
>>> dependencyDependencies.update(recursiveDependencies(nn))
>>> return thisDependencies.union(dependencyDependencies)
>>>
>>> def findOutputs():
>>> result = []
>>> for n in nuke.allNodes():
>>> if n.Class() in ["Write"]:
>>> result.append(n)
>>> return result
>>>
>>> def findInputsFromOutputs():
>>> result = set()
>>> for n in findOutputs():
>>> dependencies = recursiveDependencies(n)
>>> for dependent in dependencies:
>>> if dependent.Class() in ['Read','ReadGeo']:
>>> result.add(os.path.dirname(nuke.filename(dependent)))
>>> return list(result)
>>>
>>> def printInputsFromOutputs():
>>> print '\n'.join(findInputsFromOutputs())
>>>
>>> def findInputs():
>>> result = set()
>>> for n in nuke.allNodes():
>>> if n.Class() in ["Read", "ReadGeo"]:
>>> result.add(os.path.dirname(nuke.filename(n)))
>>> result = list(result)
>>> result.sort()
>>> return result
>>>
>>> def printInputs():
>>> print '\n'.join(findInputs())
>>>
>>>
>>>
>>>
>>> On Thu, Feb 11, 2016 at 11:34 AM, Dan Stein
>>> <[email protected] <mailto:[email protected]>>
>>> wrote:
>>>
>>> For non-GUI you can load Nuke as a Python module.
>>>
>>>
>>> http://docs.thefoundry.co.uk/nuke/80/pythondevguide/nuke_as_python_module.html
>>>
>>> Then just collect the Read and ReadGeo nodes however you would in
>>> the GUI, nuke.allNodes('Read')... etc
>>>
>>> On Feb 11, 2016, at 10:52 AM, Gabor Hovanyi <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>>> for reads, you could use nukescripts.get_script_data() or
>>>> nukescripts.get_reads()
>>>>
>>>> -g
>>>>
>>>> On Thu, Feb 11, 2016 at 10:26 AM, Gary Jaeger <[email protected]
>>>> <mailto:[email protected]>> wrote:
>>>>
>>>> Is there a way, preferably in non-gui mode, to quickly
>>>> generate a list of all read nodes, including geo, used in a
>>>> script?
>>>>
>>>> Gary Jaeger // Core Studio
>>>> 249 Princeton Avenue
>>>> Half Moon Bay, CA 94019
>>>> 650.728.7957 <tel:650.728.7957> (direct)
>>>> 650.728.7060 <tel:650.728.7060> (main)
>>>> http://corestudio.com <http://corestudio.com/>
>>>>
>>>>
>>>> _______________________________________________
>>>> Nuke-users mailing list
>>>> [email protected]
>>>> <mailto:[email protected]>,
>>>> http://forums.thefoundry.co.uk/
>>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>>>
>>>>
>>>> _______________________________________________
>>>> Nuke-users mailing list
>>>> [email protected]
>>>> <mailto:[email protected]>,
>>>> http://forums.thefoundry.co.uk/
>>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>>
>>> _______________________________________________
>>> Nuke-users mailing list
>>> [email protected]
>>> <mailto:[email protected]>,
>>> http://forums.thefoundry.co.uk/
>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Nuke-users mailing list
>>> [email protected], http://forums.thefoundry.co.uk/
>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>
>> --
>> ben dickson
>> 2D TD | [email protected]
>> rising sun pictures | www.rsp.com.au
>> _______________________________________________
>> Nuke-users mailing list
>> [email protected], http://forums.thefoundry.co.uk/
>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
_______________________________________________
Nuke-users mailing list
[email protected], http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
