Hmm, I still can’t get it to crash...
Is there any way you can try this with the latest version of Nuke to see if
it’s possibly related to a past bug?
As far as your code goes, it works fine. The only changes I would be sure to
make (without getting too picky) are some order-of-operations things and some
re-use of variables.
from __future__ import with_statement
import re
import nuke
blurPrefix = 'sg_blur'
mergePrefix = 'sg_merge'
nameRE = re.compile('^(%s|%s)' % (blurPrefix, mergePrefix))
def test():
tn = nuke.thisNode()
for name, knob in tn.knobs().iteritems():
if nameRE.search(name):
tn.removeKnob(knob)
with tn:
for a in nuke.allNodes('Blur') + nuke.allNodes('Merge2'):
if nameRE.search(a.name()):
nuke.delete(a)
for i in range(1, tn['number'].value() + 1):
blurName = '%s%d' % (blurPrefix, i + 100)
nuke.createNode('Blur', 'name %s' % blurName, inpanel=False)
k = nuke.Link_Knob('%s%d' % (blurPrefix, i), 'blur %d' % i)
k.makeLink(blurName, 'size')
tn.addKnob(k)
mergeName = '%s%d' % (mergePrefix, i + 100)
nuke.createNode("Merge2", 'name %s' % mergeName, inpanel=False)
k = nuke.Link_Knob('%s%d' % (mergePrefix, i), 'merge %d' % i)
k.makeLink(mergeName, 'mix')
tn.addKnob(k)
-Nathan
From: Simon Björk
Sent: Wednesday, May 02, 2012 1:08 PM
To: Nuke Python discussion
Subject: Re: [Nuke-python] Re: Adding/Removing knobs and crashing
Hi Nathan,
attached is a Nuke script that contains a group node with a python button and a
sticky-note that contains the Python script. Just save it in your Nuke path.
This seems to work a little bit better than my full script, but it still
crashes a lot. It crashes for example if I set it above 10 and also often when
I set it back to 1. In my full script I have a couple of more loops that does
other things (set inputs, moves node around to x,y pos). I'm pretty new to
Python so I would very much appreciate a nod in the right direction on this
(the only reason I got this far is because of this list). Thanks.
#! C:/Program Files/Nuke6.3v2/Nuke6.3.exe -nx
version 6.3 v2
define_window_layout_xml {<?xml version="1.0" encoding="UTF-8"?>
<layout version="1.0">
<window x="0" y="22" w="1680" h="1024" screen="0">
<splitter orientation="1">
<split size="1052"/>
<splitter orientation="1">
<split size="40"/>
<dock id="" hideTitles="1" activePageId="Toolbar.1">
<page id="Toolbar.1"/>
</dock>
<split size="1008"/>
<splitter orientation="2">
<split size="480"/>
<dock id="" activePageId="Viewer.1">
<page id="Viewer.1"/>
</dock>
<split size="479"/>
<dock id="" activePageId="DAG.1">
<page id="DAG.1"/>
<page id="Curve Editor.1"/>
<page id="DopeSheet.1"/>
</dock>
</splitter>
</splitter>
<split size="608"/>
<dock id="" activePageId="Properties.1">
<page id="Properties.1"/>
<page id="Script Editor.1"/>
</dock>
</splitter>
</window>
</layout>
}
Root {
inputs 0
name C:/Users/Simon/Desktop/to_nuke_list.nk
fps 25
format "1920 1080 0 0 1920 1080 1 HD"
proxy_type scale
proxy_format "1024 778 0 0 1024 778 1 1K_Super_35(full-ap)"
}
StickyNote {
inputs 0
name StickyNote1
label "from __future__ import with_statement\nimport os\nimport nuke\nimport
nukescripts\nimport re\n\ndef test():\n\n n = nuke.thisNode()\n blur_name
= \"sg_blur\"\n merge_name = \"sg_merge\"\n blur_reg =
re.compile(blur_name)\n merge_reg = re.compile(merge_name)\n\n # Delete
knobs\n for b in n.knobs():\n if blur_reg.match(b) or
merge_reg.match(b):\n n\[b].setValue(0)\n nuke.message(
str(n\[b].value()) )\n n.removeKnob(n.knobs()\[b])\n\n # Access
nodes inside group:\n with n:\n\n # Delete old nodes.\n for a
in nuke.allNodes():\n old_name = a\[\"name\"].value()\n
if blur_reg.match(old_name) or merge_reg.match(old_name):\n if
a.Class() == \"Merge2\" or a.Class() == \"Blur\":\n
nuke.delete(a)\n\n # Set up values.\n num =
n\[\"number\"].value()\n\n for i in range(num):\n\n # Create
blur\n b = nuke.createNode(\"Blur\")\n
b\[\"name\"].setValue(blur_name + str(i + 100)) \n\n # Create blur
knobs\n k = nuke.Link_Knob( blur_name + str(i + 1) )\n
k.makeLink(str(b\[\"name\"].value()), \"size\" )\n k.setLabel(
\"blur\" + str(i + 1) )\n n.addKnob(k)\n\n #Create merge
node.\n m = nuke.createNode(\"Merge2\")\n
m\[\"name\"].setValue(merge_name + str(i + 100))\n\n # Create merge
knobs\n e = nuke.Link_Knob( merge_name + str(i + 1) )\n
e.makeLink(str(m\[\"name\"].value()), \"mix\" )\n e.setLabel(
\"merge\" + str(i + 1) )\n n.addKnob(e)\n "
xpos 216
ypos -253
}
Group {
inputs 0
name Group1
xpos -32
ypos 7
addUserKnob {20 User}
addUserKnob {3 number l "number of loops"}
number 3
addUserKnob {22 run_script l "run script" T "import
to_nuke_list\n\nto_nuke_list.test()" +STARTLINE}
}
Input {
inputs 0
name Input1
xpos 132
ypos -89
}
NoOp {
name NoOp1
xpos 132
ypos -49
}
Output {
name Output1
xpos 132
ypos 51
}
Blur {
inputs 0
name sg_blur100
}
push 0
Merge2 {
inputs 2
name sg_merge100
}
Blur {
name sg_blur101
}
push 0
Merge2 {
inputs 2
name sg_merge101
}
Blur {
name sg_blur102
}
push 0
Merge2 {
inputs 2
name sg_merge102
selected true
}
end_group
Viewer {
frame 1
viewerProcess rec709
input_process false
name Viewer1
xpos -107
ypos 430
}
StickyNote {
inputs 0
name StickyNote2
label "Save this script in your Nuke-path. Name: to_nuke_list.py"
note_font_size 21
xpos 128
ypos -327
}
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