Reply To: "Default value for parameter", serialization, and 2.7 / 2.8 differences

[kalms]

Yes, OnCreate is indeed only called when the node is created and only once when it does. Not every time the node deserialize, so that is a safe place to set the default serialized values.

Cool, thanks, then we will use that to set defaults for now.

A UI option for reseting the node to default values could follow in the next version. The only problem in that, is that the “OnCreate” no longer makes a lot of sense, but rather a “Reset” method would make more sense (akin to Unity’s Reset method callback). I could of course call “OnCreate” when we click the Reset option in the UI, but it’s not very consistent, thus I would prefer adding a “Reset” callback as well for this case.

I am doubtful about the usefulness of having a reset option that resets all inputs for an entire node. Usually when I want to reset something, I want to reset only a single ValueInput, not all the node’s inputs. Also, before I decide to reset the value of a node, I would like to be able to see whether or not it already has the default value (grey/white coloring). Introducing a ‘Reset node to defaults’ UI mechanism does not solve any of those problems. Therefore I don’t think it is worth implementing a “Reset” method for an entire node.