Globals are fantastic and have a number of important uses.
- Primarily they are used to synchronise the same value across multiple nodes.
- They are also excellent for documenting important numbers (e.g. iterations, BPM, counts, timers etc) and,
- Using them in the very powerful expressions as variables.
- You can use globals to amalgamate differing reactivity into a single value for making more complex reactions to music.
- There are many more specific examples of using globals but one final important one for now is that you can (effectively) expose parameter controls through globals: assign a global to a parameter in, say a sub-scene, then you can control that from the globals panel whether that node is visible or not.
There's a section in the manual:
https://magicmusicvisuals.com/downloads ... ParametersThere have been a few requests submitted regarding Globals including folders (for management) and scene specific Globals (or locals) and perhaps others I've forgotten.