https://github.com/YAL-GameMaker/pixel-perfect-smooth-camera

An example of pixel-perfect yet smooth camera for GameMaker Studio 2
https://github.com/YAL-GameMaker/pixel-perfect-smooth-camera

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An example of pixel-perfect yet smooth camera for GameMaker Studio 2

• Host: GitHub
• URL: https://github.com/YAL-GameMaker/pixel-perfect-smooth-camera
• Owner: YAL-GameMaker
• Created: 2020-12-10T00:25:09.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-12-10T01:03:50.000Z (over 4 years ago)
• Last Synced: 2024-11-02T17:36:31.416Z (6 months ago)
• Topics: gamemaker
• Language: Game Maker Language
• Homepage:
• Size: 35.2 KB
• Stars: 35
• Watchers: 3
• Forks: 5
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-gamemaker - Pixel Perfect Smooth Camera - An example of pixel-perfect yet smooth camera. (Camera / Recommendations)

README

        
# Pixel-perfect smooth camera

When designing traditional pixel-art games (in general and in GameMaker specifically), it is generally desirable to keep your camera pixel-perfect to avoid rotated pixels and reduce various other artifacts:

![ppsc-1](https://user-images.githubusercontent.com/731492/101706746-77887580-3a92-11eb-9add-2a8d59bc1fb9.gif)

This, of course, comes with an unfortunate caveat: it can be very hard to make your camera movement look good - especially if small speeds and/or acceleration/deceleration are involved:

![ppsc-2](https://user-images.githubusercontent.com/731492/101706719-650e3c00-3a92-11eb-996e-db442a774b89.gif)

This is a demonstration of an approach that allows you to escape this problem - by making the camera 1px wider and taller and having it draw to a surface, we are able to then offset this surface to make up for fractions in the camera coordinates:

![ppsc-3](https://user-images.githubusercontent.com/731492/101706727-69d2f000-3a92-11eb-9c4b-10e3f93a061a.gif)

An alternate approach involves drawing a half-pixel (at the game's internal resolution) frame at the edges of the screen so that you can wiggle the game's default surface (`application_surface`) under it without making it apparent to the player.

## Credits

* Example by [YellowAfterlife](https://yal.cc)

* Tileset and background taken from ["Pixel Adventure"](https://opengameart.org/content/pixel-adventure-1) by Pixel Frog

* Inspired by Hyper Light Drifter camera  

  (which likely uses the "alternate approach" described here)