Hello, I am wondering how to set Default input channels of the captioned knob, I notice that the default Nuke Blur Op has an "all" default channel set once it's created without any viewer/writer nodes connected, so I guess there's a way to define the default/preferred channels at the Iop::knobs() call or ?
Any hint on this ? What I want to to do is to define some preferred default channels on my knob, say "rgb" or "rgba". I have a hack working but relied on _validate() which means it only works when some downstream Op is connected .... Appreciate any input and idea ! thanks. Mike
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