Smooth Scene transitions with SceneManager and additive scene in Unity

Question

I'm trying to work with the new SceneManager class with Unity, I'd like to have smooth transitions between scenes. Currently I suppose that the only way to do those transitions is to manually implement them on the scene objects leveraging on the fact that scenes can be loaded additively.

In pseudo code I image something like:

for gameObject in previousSceneGameObjects 
    gameObject.animateSceneExit()
endFor

for gameObject in nextSceneGameObjects 
    gameObject.animateSceneEnter()
endFor

I feel that there is something I'm missing :P which is the best approach that you'd suggest? Is it my approach valid?

Answer 1

Your animateAppear term indicates that you want fade-in, fade-out effect. Correct me if I am wrong, for that,

Just a tricky suggestion :)

I think you can achieve this by placing a black or white sprite above all. fade it in when you are exiting from scene, and in next scene you can do the same in opposite way when entering into another scene. No need to use additive scene.