How do I resize a sprite by 3x3?

[suy]

I'm not sure if I described it corectly, but I have a sprite that got resized to be bigger and each pixel turned into a x3 square and I don't know how to desize it properly to it's original size

[Vegaetalus]

Calculate what 1/3 of the width and height of the image is, and resize your sprite to that, with no interpolation (nearest neighbor).

If either the width or height are not whole numbers when you divide them, then your image was cropped at some point and you need to make sure it only consists of exactly those 3x3 blocks of pixels, and make sure the very top left of the image is also the very top left of the first 3x3 block.

[Mikannde]

Have you tried Sprite -> Sprite Size -> Percentage set to 33.33%?

[Vegaetalus]

Publicado originalmente por Mikannde:

Have you tried Sprite -> Sprite Size -> Percentage set to 33.33%?

I wouldn't trust this to do the math perfectly, better to calculate the exact dimensions yourself.