Messages are sent between linked Nodes. The only way nodes communicate with each other is by sending messages from one to another.

If we have Node1 whose output is linked with Node2’s input, a message is created in the Node1, sent out of the Node1’s output and to the Node2’s input.

On the table of contents (left side of the page) all messages are listed under the Messages entry. You can click on them to find out more.

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