How interactive scenes are created in the main menu of modern computers. games?

Question

Game development

In the computer games of the latest generation, (for example: the witcher 2, left 4 dead, etc.) when starting Ch. menu, you can watch various interactive scenes, whether it is: the movement of clouds, animated characters, various special effects, etc. What technologies are used to achieve this? I heard that this is achieved through a special kind of flash ...

Answer 1

No, you heard wrong. Flash, or rather Scaleform, are used only for UI. In the background is a real game scene. Who prevents you from creating a level and calling it MainMenu, and loading the menu itself instead of Hud?