Top dweets by u/magna

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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magna

function u(t) {

t||(w=c.width=192)
for(h=54,i=w;i--;x.fillRect(i,R,1,j/w))for(R=t*39|0,X=i/h-2.4,Y=R/h-1,a=b=0,j=w;a*a+b*b<5&&j--;)[a,b]=[a*a-b*b+X,2*a*b+Y]

Oct 22 2021 3:06 AM UTC

}// 140/140

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#mandelbrot #glitch

u/magna

My first attempt to draw a Mandelbrot fractal, straight from the reference implementation from Wikipedia. Still need to learn lots of size/speed hacks, apparently :)
u/KilledByAPixel

congrats!
u/Toby

nice!

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magna

function u(t) {

if(t>5)return
T=t**.5
r=T*16
p=T*6.283
for(j=17;j--;)for(i=30;i--;x.fill())x.beginPath(),x.arc(i*64+C(p)*r,j*64+S(p)*r,4,0,7)

Oct 19 2021 4:04 AM UTC

}// 125/140

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u/Joachim

#pattern

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magna

function u(t) {

eval(unescape(escape`󙌽󚍆󛍓󛍘󛍙󛍃󛍦󚜽󟭻󮌮󩭯󫭴󟝠󙍻󡭽󨽭󘌤󮽦󯝠󞽸󛭦󪝬󫍓󭍹󫍥󟝃󞽸󛭦󪝬󫍔󩝸󭌨󤼬󦌪󞜬󦜪󞜩󯜊󙌨󜼰󛌧󧍵󜬵󠝃󙼬󝌰󛌱󜌰󛌧󭍥󨝬󙼩󒬤󚌶󛌧󡍷󪝴󭍥󬬧󛌶󝜬󝼶󛌧󘽦󩭦󙼩󒬤󚌱󜼬󙽜󭝄󞌳󡝜󭝄󡍁󞌧󛌸󞌬󝜲󚜊󙌨󜜬󨍏󙽒󡝉󣍌󦝠󛌴󜌬󜜱󞜬󤬨󚜬󙽡󬭩󨝬󙼩`.replace(/u../g,'')))

Oct 13 2021 10:47 PM UTC

}// 140/140

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Essential reading

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u/magna

Text positioning tweaked on a Chrome on macOS, so may look screwed up on other browsers.
u/magna

Also, holy shit. Look at those artifacts around the skunk. Who at Apple cleaned that image?
u/magna

*Apple -> Chrome/Google? I don't know who is responsible for the emojis :)
u/mxfh

Lol. Apple Skunkworks I suppose. dwitter is a whole argument while real other browsers should be enforced to be allowed on iOS.
u/rep_movsd

Chromium doest show the skunk :(
u/tomxor

Safari/webkit is the new IE in terms of browser stagnation and bugs, i come to dwitter to not care about it :)
u/mxfh

ok, spotty alpha channels are not that rare: https://observablehq.com/@mxfh/emojis

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magna

function u(t) {

for(c.width=X=128;X--;)for(Y=72;Y--;)y=Y/3-12,y>T(T(S(X/3)*S(y+(t%2-1)*Math.PI)))&&x.fillRect(X,Y,1,1)

Jan 2 2021 10:06 PM UTC

}// 102/140

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https://twitter.com/ntsutae/status/134547762…

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magna

function u(t) {

t||(d=c.cloneNode()).getContext('2d').fillText('🐱',0,15)
T.valueOf=Math.random
s=55
x.drawImage(d,X=T*20,Y=T*20,T,T,X*s+580,Y*s,s*T,s*T)

Jun 7 2018 3:04 AM UTC

}// 137/140

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A three-way adversarial deep neural network learning to draw a cat.

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u/DataMeta

this is clever af
u/BirdsTweetCodersDweet

How is it a neural network? You're just drawing random squares on a cat emoji :P
u/pythech

whoosh
u/magna

Yeah, sorry, it was a bad joke. Just transferring random rectangles from an off-screen canvas. The only catch is the use of valueOf to cut down on the function call ()s.
u/iverjo

Clever indeed!
u/rodrigo.siqueira

#neural
u/katkip

#ai

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magna

remix of d/3274 by u/magna

function u(t) {

onmousemove=(e)=>S=e;d=x.createImageData(w=c.width=100,w);for(i=0;i<4e4;d.data[i++]=i%T(i%S.x*S.y+t)*255);x.putImageData(d,0,0)

Jan 7 2018 6:23 PM UTC

}// 127/140

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Move mouse to change tuning to find the hidden channels!

u/iverjo

#interactive
u/magna

#tv #noise

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magna

remix of d/2604 by u/magna

function u(t) {

for(i=c.width=w=192;i--;)for(j=w;j--;!!('ưưƠƀÃÇÏÏ'.charCodeAt(j&7^f*7)-w&1<<(i%8^(X+Y&1)*7))^f&&x.fillRect(i,j,1,1))X=i>>3,Y=j>>3,f=t*X/Y&1

Apr 26 2017 10:17 PM UTC

}// 139/140

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Filled truchet tiles, now animated thanks to shaving by @donbright

u/donbright

the thing that strikes me is the black and white balls never move, only their connections.... but it looks like the whole plane is aliv
u/magna

@donbright To achieve that: Starting with a single tile, every other tile is flipped on the X axis. And then to flip a tile, I need to both invert the tile's pixels and also to flip it on the Y axis. Lots of XOR was needed :)
u/sigveseb

Excellent
u/iverjo

#dots
u/magna

#truchet

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magna

remix of d/28528 by u/DazeWare

function u(t) {

eval(unescape(escape`󨼮󬽴󮝬󩜮󩭩󫍴󩝲󟜧󪝮󭭥󬭴󚌧󞽦󫽲󚍡󟝢󟜰󛍋󟝩󟜱󩜴󞽩󛜭󞽡󚼽󚍲󟝩󚭴󛽢󙬱󚜯󝜭󨬪󤼨󨜪󝌮󝬫󬬪󜬩󛼱󝬭󨜪󨜯󝌬󨬭󟝃󚍡󚬴󛬷󚽴󚬮󜌱󚭓󚍴󚜩󚽡󚭢󛼸󚝸󛭦󪝬󫍓󭍹󫍥󟝠󪍳󫌨󙍻󜬵󜌭󭌪󝭽󘌹󞜥󝜰󙝠󛍸󛭦󪝬󫍒󩝣󭌨󢼭󨜪󢼬󨬪󢼯󞌭󝍥󜼬󛬱󛍴󟌹󚜻`.replace(/u../g,'')))

Sep 21 2023 5:02 AM UTC

}// 137/140

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Chemical accident

u/magna

#waitforit

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magna

remix of d/27939 by u/rodrigo.siqueira

function u(t) {

for(c.width=A=128;A;(X^R)%7?R+=.1:T++<48?x.fillRect(A+3,36+T/R-z+9/t,T/96+-.5,2/R):(u=--A/64-1,R=1,T=-48))X=R*u+t,z=X*35+R,z=(z-T^T+z)%7>5

Jun 10 2023 7:40 PM UTC

}// 138/140

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Misty floor lazy remix

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magna

remix of d/27943 by u/KilledByAPixel

function u(t) {

for(c.width=A=99;A;)(t+R*A/50-R^R)%5?R+=.1:x.fillRect(A,28-T/R,T++<20||(T=-20,--A,R=1),.3)
for(i=9;i--;)x.fillRect(21+i*5+S(t)*15,21,3,10)

Jun 10 2023 7:32 PM UTC

}// 138/140

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#dewolft

Show more comments…
u/magna

Had to be done.
u/tomxor

haha
u/KilledByAPixel

and uncompressed, nice work!
u/joeytwiddle

wow
u/DataMeta

lol noice!
u/donbright

omg
u/donbright

#demo #d
u/donbright

#3d
u/magna

#default

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