How do I get a 1:1 pixel ratio?

Questions & Answers
1

I’m interested in making a tile-based game in Unity. One of my main concerns with this tile game is that the game should have a 1:1 pixel ratio with the tiles, so that the tiles will always display at exactly the same size on the screen, no matter the resolution of the standalone. How do I do this? I tried this script:

@script ExecuteInEditMode()

var spriteSize = 64.0;

// set the camera to the correct orthographic size (so scene pixels are 1:1)
s_baseOrthographicSize = Screen.height / spriteSize / 2.0;
Camera.main.orthographicSize = s_baseOrthographicSize;

But it doesn’t do the trick–as I change the size of the editor window, the size of my tiles onscreen changes. So, how do I get a constant 1:1 pixel ratio in my game, such that a pixel in one of my assets from Photoshop is equivalent to a pixel on the screen of my game, and will be so regardless of the game’s resolution?

3

Change the filter mode on your texture to point.

But having one of those sprite handlers is really nice. I have been having great luck with 2D toolkit. It is easy to use and the creator of the thing will basically personally answer all your questions on their forum.

2

You need “Pixel Perfect”. There are several Unity plugins that can easily provide Pixel Perfect to your project.
For example, here are some that I can remember:

  • Sprite Manager (is free and you can get it in UnifyCommunity)
  • Sprite Manager 2 (is a paid and more robust version of the free one)
  • Ex2D

Also, there’s a thread that may help you to set manually this 1:1 pixel ratio:
Displaying exact pixels with SpriteManager.