If you use the editing capabilities and send in a grid of 32×32 cells on a 1024×1024 image, you can get it to flood-fill in each square, so you end up with properly aligned 32×32 tiles. Then you can squash it via nearest neighbor to pull the lines back out, and reduce the palette using something like unfake.js:
This is 100% true for artists. But I am not an artist, and I like pixel art stylistically. So when I make sites or games, I need to either: use my bad art, hire someone on fiverr, or use AI.
Not OP and I won't dispute your point exactly but I'd like to point to a book called Pixel Logic wherein the author makes the same point regarding pixel art. Even though you'll be using stuff like the Lasso and Paint Bucket tools the big thing about pixel art is the manual control and precision of pixel placement (by hand) where you employ techniques like anti aliasing (again by hand). Advanced techniques like sub-pixeling when doing animation frames are another thing that makes sense only when you can place pixels one by one.
I have really struggled to get nano banana to follow size/proportion ratios for sprite art. any tips? I fed in a bunch of examples first and tried to write a really strict prompt. I wonder if any of the sw being discussed here can be programmatically controlled by claude code or similar to do sprite work
Like the comment above I split sprite sheets into grids with edges for NBP to follow. I have the option to add the canny edge map to the grid to enforce a lot of consistency as well. Then I specifically tailor the prompt to the task.
That’s probably fair which is why I tried to be upfront that this is shilling. I figure some people might be like me, interested in sprites but not artsy enough to make them. You might start with an ai sprite and fix it via LibreSprite or another tool.
If you're looking for pixel-art sprites, check out 8bitsmith.com. Or you can just ask Nano-Banana for sprite sheets and it does a pretty good job!