snippet #1<\/strong><\/h6>\n<\/div><\/div>\n

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This tiny piece of code enables you to automatically create a new ReadNode<\/strong> reading the filepath from a selected\u00a0WriteNode.\u00a0<\/strong>Mapping this code to a hotkey makes it a really handy action to use. So let’s see the actual code:<\/div>\n

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.__author__ Boris Martinez\r\n\r\nimport nuke, re, math, os\r\n\r\ndef AutoReadFromWrite():\r\n\r\n    try:\r\n        n = nuke.selectedNode()\r\n\t\t\r\n    except:\r\n    \r\n        m = nuke.message('select a WriteNode,dude')\r\n        m.show()\r\n\telse:\r\n\t\tif n.Class() == 'Write':\r\n\t\t\t#fetching data from the write node\r\n            p = n.knob('file').getValue()\r\n\t\t\tfstf = n.knob('first').getValue()\r\n\t\t\tlstf = n;knob('last').getValue()\r\n\t\t\tcolorspace = str(i.knob('colorspace').getValue()\r\n\t\t\t#fetching data from the write node\r\n            r = nuke.createNode('Read')\r\n            r.knob('file').setValue(p)\r\n\t\t\tr.knob('first').setValue(int(firstFrame))\r\n\t\t\tr.knob('last').setValue(int(lastFrame))\r\n\t\t\tr.knob('origfirst').setValue(int(firstFrame))\r\n\t\t\tr.knob('origlast').setValue(int(lastFrame))\r\n\t\t\tr.knob('colorspace').setValue(colorspace)\r\n\t\telse:\r\n\t\t\tm = nuke.message("Select a Write node, dude!")\r\n\t\t\r\n\t\t\r\n AutoReadFromWrite()\r\n<\/pre><\/div><\/div>\n<\/div><\/div>\n<\/div>\n
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snippet #2<\/strong><\/h6>\n<\/div><\/div>\n
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 This ones takes advantage of some of the concepts from the AutoReadFromWrite<\/strong> <\/span>function to\u00a0enable the user to open in the explorer the folder that\u00a0the filepath knob of a selected ReadNode<\/strong> is pointing to.\u00a0<\/span><\/div>\n
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.__author__ Boris Martinez\r\n\r\nimport nuke,os\r\n\r\ndef AutoExploreFromRead():\r\n    \r\n    try:\r\n        n = nuke.selectedNode()\r\n        f = n.knob("file").getValue()\r\n        p = os.path.dirname(f)\r\n        print "path is %s" %p\r\n        os.startfile(p)\r\n    except:\r\n        p = nuke.message("no file selected")\r\n        p.show()\r\n        print "no file selected"\r\n\r\nAutoExploreFromRead()<\/pre><\/div><\/div>\n
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snippet #3<\/strong><\/h6>\n<\/div><\/div>\n
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Here we have a little trickier code comprising concepts\u00a0we did not see in the previous ones. Stuff like iterations<\/strong>, classes<\/strong> and GUI<\/strong> creation. Functionality wise, it’s really simple! What it does is just creating a randomized animation curve in selected lights. Useful if you\u00a0want to create some randomized animation for lights in the scene (it affects specifically the intensity value of selected lights).<\/div>\n<\/div>\n
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.__author__ Boris Martinez\r\n\r\nimport nuke\r\nimport random\r\nimport nukescripts\r\n\r\n\r\ndef lightRandomizer(m,i,o):\r\n    try:\r\n        nodes = nuke.selectedNodes()\r\n        variation = None\r\n        for light in nodes:\r\n            for e in range(i,o):\r\n                variation = random.randrange(1,5)\r\n                if light.Class() == "Light2":\r\n\r\n                    light['intensity'].setAnimated()\r\n                    light['intensity'].setValueAt(variation * m,e)\r\n    except:\r\n        ep = nuke.message("No nodes selected")\r\n        ep.show()\r\n\r\ndef lightRandExpression():\r\n    nodes = nuke.selectedNodes()\r\n    variation = None\r\n    for light in nodes:\r\n        variation = random.randrange(1,5)\r\n        if light.Class() == "Light2":\r\n            light['intensity'].setExpression("random(frame)")\r\n            light['intensity'].setAnimated()\r\n\r\n#creating the panel for introducing a multiplicator and launching the lightRandomizer function\r\n\r\nclass modalPanel(nukescripts.PythonPanel):\r\n\r\n    def __init__(self):\r\n        nukescripts.PythonPanel.__init__(self,"multiplier")\r\n        self.m = nuke.Double_Knob("intensity multiplier", "intensity multiplier: ")\r\n        self.addKnob( self.m )\r\n        self.fRange = nuke.String_Knob('fRange', 'Animation Range', '%s-%s' % (nuke.root().firstFrame(), nuke.root().lastFrame()))\r\n        self.addKnob(self.fRange)\r\n\r\n    def showModalDialog( self ):\r\n        nukescripts.PythonPanel.showModalDialog(self)\r\n\r\n    def giveMultValue(self):\r\n        return  self.m.getValue()\r\n\r\n    def giveFrameRangeValue(self):\r\n        return self.fRange.getValue()\r\n\r\n#wrapper function\r\n\r\ndef lightRandmWrapper():\r\n    panel = modalPanel() # an instance from the modalPanel Class\r\n    show = panel.showModalDialog()\r\n    multiplier = panel.giveMultValue()\r\n    frameRange = panel.giveFrameRangeValue()\r\n    frameRangeSplitted = frameRange.split("-")\r\n    ini = int(frameRangeSplitted[0])\r\n    fin = int(frameRangeSplitted[-1])\r\n\r\n    #print "frameRange is: ", frameRange\r\n    #print type(frameRange)\r\n\r\n    lightRandomizer(multiplier,ini,fin)\r\n    #p = nuke.message (" Boris says: lights randomized, cool!")\r\n    #p.show()\r\n\r\nlightRandmWrapper()\r\n#lightRandExpression\r\n\r\n<\/pre><\/div><\/div>\n<\/div><\/div>\n<\/div>\n
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So, for the time being, this is all folks. Feel free to copy this snippets for your personal use in Nuke.\u00a0For snippets #1 & #2 I highly recommend mapping them to a hotkey. If you don’t know how to do so, checking Fxphd’s “Python for Nuke & Gizmology”<\/strong><\/a> course by Victor Perez would be really helpfull. For other general Python questions, I strongly recommend Mark Lutz’s “Programming Python”<\/strong> book.<\/div>\n
\u00a0<\/strong><\/h6>\n","protected":false},"excerpt":{"rendered":"
So, for the time being, this is all folks. Feel free to copy this snippets for your personal use in Nuke.\u00a0For snippets #1 & #2 I highly recommend mapping them to a hotkey. If you don’t know how to do so, checking Fxphd’s “Python for Nuke & Gizmology” course by Victor Perez would be really […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47,48,49],"tags":[51],"class_list":["post-1921","post","type-post","status-publish","format-standard","hentry","category-nuke","category-python","category-scripting","tag-python"],"_links":{"self":[{"href":"https:\/\/boris-mc.com\/index.php?rest_route=\/wp\/v2\/posts\/1921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/boris-mc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boris-mc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boris-mc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/boris-mc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1921"}],"version-history":[{"count":53,"href":"https:\/\/boris-mc.com\/index.php?rest_route=\/wp\/v2\/posts\/1921\/revisions"}],"predecessor-version":[{"id":2494,"href":"https:\/\/boris-mc.com\/index.php?rest_route=\/wp\/v2\/posts\/1921\/revisions\/2494"}],"wp:attachment":[{"href":"https:\/\/boris-mc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boris-mc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boris-mc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}