Is there a callback that captures the closing of a Group node's DAG?
Viewers in groups can be a real problem (Nuke continues updating them
even if they're in background panes and not visible, which can massively
slow interactivity).
What I'd like is a function that deletes all viewers in a Group when its
DAG is closed. However, the updateUI callback doesn't capture that
change in state.
Any thoughts? Would this have to be done through PySide?
Thanks,
Charles
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