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#genuary4

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Metamere

#Genuary4 prompt:
Black On Black
openprocessing.org/sketch/2500

I didn't really want to do something too dark, and I recalled how crows are pure black but have some iridescence in their feathers. Then a photographer I follow, @studiochris serendipitously posted a great photo of a crow (sfba.social/@studiochris/11377), so I had to try making a generative system from it. It's still pretty abstracted, but it has some fun details.

#Genuary2025
#CreativeCoding
#GenerativeArt
#AlgorithmicArt

The feathers are laid out on a grid which is shifted slightly to better resemble a wing when it is tucked up. The feathers are all fairly uniform, and are based around a rectangle with rounded ends. Each feather is constructed of many smaller rectangles to represent each barbule. These smaller rectangles are clipped by the larger rounded rectangle. The base color palette was sampled from Chris Price's photo. Each feather has a color selected based on an underlying modulus pattern of the x and y positions in the grid, which can be varied from run to run. Each feather is also rotated on a smooth noise field, and has the width and height slightly jittered. Each barbule also has smooth noise rotation, and x/y jitter, as well as a slight color jitter. The feather array reminded me of storm clouds, so I titled this piece "Crow Feather Clouds".
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Scott Richmond

#genuary #genuary4: black on black. Working with James Clayson's _Visual Modeling in Logo_, which has a chapter on spirographs (although he doesn't call it that). An ominous, 7-pointed star.

EDIT: slightly lighter background, wider-format cropping.

web.ludus.dev/?code=fn+ngon%21

A 7-pointed, very dense spirograph star, made from thin black lines on a very dark grey background. It is inscribed in a faint heptagon, which is itself made up of several thin lines. The star's lines extend beyond the heptagon to make sort of floral lobes. It is cropped so that the star's centre is in the top right quadrant of the image.
Public
nnirror

#genuary4 prompt: black on black

The very black image is what I actually coded in Facet. The other image shows that if you increase the brightness and contrast of the first image, there are 10 different layers of black squares in it. They are the 10 darkest blacks, layered on top of each other.

Ten concentric dark squares, increasing in brightness as they move towards the center. The outside of the image is completely black, and the inside is dark grey.
It looks completely black but is in fact 10 different layers of concentric black squares.
#genuary
Public
Andrew Baldwin

#genuary4 #genuary2025 #genuary #python
# "Black on black."
# To view: "ffplay -framerate 60 -loop 0 b%04d.png"
import numpy as n,PIL.Image as I
W=720
y,x,_=n.mgrid[:W,:W,:3]/W-.5
r=(x*x+y*y)**.5
c=60*9
w=200
m=0.97
s1=m/(c+w)
s2=m/c
for i in range(c):
j=(i+300)%c
a=(-j*s2)%m
b=((-j-w)*s1)%m
g=1/(a-b+1e-6)
l=1-(r-b)*g
f=((r<a)&(r>b))*l
I.fromarray((255*f).astype('B')).save(f"b{i:04d}.png”)

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Public
Michał Rostocki

"Pixelosis"
Since #genuary4 prompt is "pixels" the best way to show them is by serious upscaling of sprites. Here's a #winter Outrun-like #tweetcart

#genuary4 #genuary #pico8 #generative #codeart #sizecoding #pixelart

for i=0,999do
x=rnd(i/40)-i/90c=3if(i>799)x/=9c=1
sset(x+9,i/30,c+i%4)end::_::?"\^1\^cc\^!5f11█░⬇️3⬅️"
for i=2,63do line(0,i+64,127,i+64,(28/i+t())%2+6)end
j=t()*4for k=40,1,-1do
i=k-j%1x=(cos((k+j\1)/9)+.3)*4^6z=i*9+9s=600/z
sspr(0,0,32,40,x/z+64-2*s,64-3*s,4*s,6*s)end
goto _

GIF
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chris martens

#genuary4 Pixels
editor.p5js.org/chrisamaphone/

went with 90s nostalgia for lite-brites. could play around with this for rendering various grid animations like CAs, but right now it just randomly replaces a pixel on each iteration (color -> empty, empty -> random color).

probably the most interesting part was deciding what colorspace to use for the circular gradients. i went with HSL, but then that meant white had to be a special case

GIF
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zool

For #genuary4 "Pixels" a generator for the traditional embroidery of Siwa Oasis

The symbols are hand drawn at 32 or 16 pixel squares in the TIC-80's "sprite sheet" and then picked for re-use with `math.random`; a couple of values in the palette map are also swapped at random. Generates one image per run, video shows hitting Ctrl-R over and over

Nothing needs to be algorithmically complex, swooshily involved, or technically impressive, as long as you like it, #genuary

tic80.com/play?cart=3688

GIF
Public
nnirror

pixels
#genuary4 #genuary

$('gen4')
.iter(12, () => {
this.append(_.noise(2048)
.scale(0.5, 1)
.saheach(Math.pow(2, i))
.dup(Math.pow(2, i) - 1))
})
.saveimg('gen4' + rf(), [_.iter(12, () => {
this.append(_.noise(2048)
.scale(0.5, 1)
.saheach(Math.pow(2, i))
.dup(Math.pow(2, i) - 1))
}), _.iter(12, () => {
this.append(_.noise(2048)
.scale(0.5, 1)
.saheach(Math.pow(2, i))
.dup(Math.pow(2, i) - 1))
}), _.iter(12, () => {
this.append(_.noise(2048)
.scale(0.5, 1)
.saheach(Math.pow(2, i))
.dup(Math.pow(2, i) - 1))
})], 2048, 2048)
.once();

A fractal structure based on subdivided, randomly colored squares that mimic pixels. In the top row of the image, every pixel in the image has a different color. The next 2 rows are 2*2 pixels; the next 4 rows are 4*4 pixels; and so on until the final half of the image which is simply 2 humongous, colored squares.
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