Hi.
I'm having problems with an onKnobChanged event. I'm trying to add a
node under a Read node whenever the user sets the input colorspace to
AlexaV3LogC. The node I'm trying to add is a gizmo, and when the event
is fired, the node appears in the graph but it is unconnected and this
error appears:
Traceback (most recent call last):
File "[...]/Nuke/Nuke6.3v5_win64/plugins\nuke\callbacks.py", line 127,
in knobChanged
_doCallbacks(knobChangeds)
File "[...]/Nuke/Nuke6.3v5_win64/plugins\nuke\callbacks.py", line 46, in
_doCallbacks
f[0](*f[1],**f[2])
File "[...]\nukePlugins\src/init.py", line 199, in
onKnobChanged_Read_Colorspace
oObqAC = nuke.nodes.ObqAlexaCorrect(inputs=[nuke.thisNode()])
RuntimeError: [...]\nukePlugins\src/ObqAlexaCorrect.gizmo:
Missing end_group command(s)
It all works well when I add a normal node instead (when I replace
"ObqAlexaCorrect" by "Grade"), but it fails with any gizmo. Is this
something known?
Here is my event code.
def onKnobChanged_Read_Colorspace():
if nuke.thisKnob().name() == "colorspace" and
nuke.thisKnob().value() == "AlexaV3LogC":
lDependentNodes =
nuke.overrides.dependentNodes(nodes=[nuke.thisNode()], what=nuke.INPUTS)
# Find ObqAlexaCorrect node in dependentNodes.
found = False
for node in lDependentNodes:
if node.Class() == "ObqAlexaCorrect":
found = True
break
if not found:
oObqAC =
nuke.nodes.ObqAlexaCorrect(inputs=[nuke.thisNode()])
# Reconnect dependentNodes to ObqAlexaCorrect.
for node in lDependentNodes:
iNbInputs = node.inputs()
for i in range(0, iNbInputs):
if node.input(i) == nuke.thisNode():
node.setInput(i, oObqAC)
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