tutorial: my awesome airbrush dither image technique!!!
krita to draw (or your program of choice)
something not too small + preferably an easy number for easy math, i used 1000 x 1000 pixels
we will be shrinking + growing the image so the final size can be different if you wish
make the background layer black
add new layer(s) on top for drawing
2) draw your design in grayscale
use the airbrush to create lots of gradation, since that's the part that will get dithered
i find it easiest to add and subtract value using white brush + eraser brush, rather than white brush + black brush
toggle eraser mode: shift + z
OPTIONAL: for a funkier look, add a gradient map to swap some of the light and dark values
"new layer" button dropdown -> filter layer -> map -> gradient map
image will import at original size with a ton of colors in the palette
to increase pixelly-ness, reduce both image and palette size, i used 250 x 250 pixels and 4 colors
play with colors and settings to your liking
4) scale image back up for better visibility
in krita, open dithered image as new document
image -> scale image to new size (ctrl + alt + i)
use a multiplier like 200%, 300%, 400%, etc. to ensure pixels stay square, i used 200% aka 500 x 500 pixels
IMPORTANT: make sure the "filter" is set to "nearest neighbor", otherwise the sharp edges will become blurry
5) optional: finishing touches
erase or move stray pixels (best done before scaling up, to preserve pixel grid)
color balance: "new layer" button dropdown -> filter layer -> adjust -> color balance
gradient map: "new layer" button dropdown -> filter layer -> map -> gradient map
export that PNG and now you have an awesome image!!! thanks for reading! B^)
krita has a great feature for this, it's how i make tiled backgrounds
view -> wrap around mode (shift + w)
use this while drawing during step 2!
then at the start of step 4 before scaling up, you can use it to check for misplaced pixels around the edges or anything that creates a "seam"
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