How do you determine what size to slice a sprite?

[bwainzzz]

For example this sprite: https://elthen.itch.io/2d-pixel-art-minotaur-sprites

When attempting to slice the spritesheet automatically or “Grid by cell size”, I did not know if I should slice the spritesheet by 16x16, 32x32, or 64x64. Is there a convenient or more efficient way to determine how to slice a spritesheet? Especially if the spritesheet was just downloaded as an asset?

Currently I try trial and error and just look in the comments of where I downloaded the sprite to determine how to slice the sprite sheet. There has to be a better way than this

[bixarrio]

Usually, you’d know what size you made the sprites so you use that. Other times - when you didn’t make your own sheet and it’s nicely packed - you can count the sprites in a row/column and divide the width/height by that number, eg. 10 sprites in a row on a sheet that’s 160px wide will be 16px for the width. Do the same for the height by counting the rows. For the sheet in your screenshot, you’d have to trial-and-error until you find what works. Those look like they could be 96x96.

[bwainzzz]

Hey @bixarrio thank you so much for replying!
Curious how do you find out the width of a sheet? In your example you mention you can count the sprites in a row – I get that, however how did you determine the pixel width of a sheet? Trying to understand how you got 160px?

[bixarrio]

It’s the dimensions of the image. If you’re on windows, go to the properties and choose the details tab

It’s right there; width x height. Can’t tell you how to get there on mac, sorry

[Yee]

Just wanted to add that sometimes there are sprite sheets that do not fit any particular ratio, when that occurs there are two options; 1) cut each sprite manually, which can take a lot of time to do properly, or 2) edit the sprite sheet using an image editor software. I highly recommend Piskel because it is free and very easy to use.

[Grater.Games.42]

My suggestion would be to look into either libresprite or aseprite. Either program has good documentation and they are made for doing exactly what you are trying to do. May I also recommend the courses like Complete Pixel Game Art Bundle | GameDev.tv

They helped me a lot.

Patrick