[Help] How to make a Fade in and Fade out of Loading Screen? C++

How to make a Fade in & Fade out on Loading Screen on Stage Game?

Like for example, when you join a room and to Join the Game, the Loading Screen will fade in with double process, it will load/loading while it is Fading in and will Fade out and the screen stage gaming will fade in/show.


Example: If you will join a game, this loading screen will fade in (the map data is loading while it is fading in, a double process)



And will fade out and you can see the Stage Game, you are now playing.