Problem with canvas management system

[Kurt-Dekker]

Have you considered additively loading your various UI scenes on demand, then unloading them when the UI closes?

It actually works remarkably well and saves you from hassling with keeping all your scenes synced in the UI the way you describe.

Additive scenes are one possible solution:

Right way for performance, divide scene?

I always favor breaking the scenes up and loading additively. reduces overall memory consumption lets multiple team members trample on each other less often ensures clean “reset” of all objects in a fresh loaded scene I’m working on a game now where we each have our own “content” level, the level we’re working on. the content scene has all the lighting baked in. Just press play and that level has one script that additively loads: music scene (just an audiosource on autoplay) the …

Unity additive scene loading example - Pastebin.com

Other notes on additive scene loading:

Removing Duplicates on Load Scene

Why not remove the player from ALL your scenes, put him in his own separate scene, then load scenes additively? That way you don’t even need a Player prefab at all, just have a Player scene and load him additively. I tend to break up all my games into partial scenes, all additively loaded by the game manager: UI player enemy manager other stuff? and then finally I load the content scene. The first batch of screens all have scripts that do nothing until the content scene appears and they kn…

Timing of scene loading:

Function called from preloader script doesn't change parent of gameobject (in the second scene)

If line 8 relies on something being present from the scene load in line 7 (in GameController), it won't be: scenes are loaded at the end of frame and would never be available until the next frame, at the very earliest. You can trivially make void Start() into a coroutine by declaring it to return an IEnumerator, then put a while loop (with a yield return null; in it!!!) to wait until the scene loads and you find the "Trains" object, then proceed. Obviously you would need to interlock other t…