All tutorials I've found about this link to the splitscreen demo, but it is made under Godot version 2 and does not work in version 3.
I want to render the world in the main viewport and its simplified view on the minimap in another viewport using two different cameras.
In the main viewport the main AnimatedSprite node of objects should be rendered, and on the minimap there are only additional Sprite nodes of objects showing their schematic view.
I tried to do:
Node2D
-ViewportContainer
--ViewportMain
--- Camera2D
--- World
----Player
-----AnimatedSprite # for main viewport
-----Sprite # for minimap
----OtherObjects
-----AnimatedSprite # for main viewport
-----Sprite # for minimap
-ViewportContainer
--ViewportMinimap
--- Camera2D
In code I assign the main viewport's world to the minimap's viewport:
$ ViewportMinimap.world = $ ViewportMain.world
For the main AnimatedSprite I set Light Layer #1, for the sketchy Sprite I set Light Layer #2.
And it does not work.
Firstly, nothing is displayed on the minimap. I don’t understand how to make it work. How to tell the minimap's viewport to use the world from the main viewport?
Secondly, I can’t find anywhere how to set on the camera which Light Layer it has to display (in the three-dimensional Camera there is a Cull Layer parameter, but I don’t see it here).
Will this approach hit performance?
How to correctly implement a minimap without needing to modify it when you add new objects to the game?
How to correctly replace scenes when player moves from one to another if it's a child of the Viewport?
