Скачать или смотреть Cameras: Everything you need to make them just work (GameMaker Studio 2 Tutorial)

This video goes over setting up a camera and viewport in GameMaker Studio 2 using GML, and that includes the other bits developers usually care about, like getting your window to be fullscreen, and getting your camera to follow your player object around the room.

I also touch briefly on screen resolution, and the need to keep your width:height ratio aligned between your camera and your view for your game to scale up nicely. I also lay out at the start what the difference is between the display, the window, the viewport, and the camera because the distinctions can be kind of confusing!

In all of my games, I like to use one object to encapsulate the camera-related logic, so I call that the 'CameraControl'. If you make one for your games using what I talk about in this video and put it in the room, your cameras should "just work". Its Create event enables views and creates a camera for the view, and it resizes the window to be the same size as the display. The draw event moves the camera around with the player.

Let me know if you have any questions in the comments below! Thanks!