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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.

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Current theme challenge: #Food

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danny@hille.dk

remix of d/26596 by u/hoplite

function u(t) {

for(t?i=w*w:I=new ImageData(w=c.width=256,w);i--;I.data.set([v=S(k*l/1e4+t),m=v*k+t^l+k,-m,w],i*4))k=i%w-128,l=i/w-80
x.putImageData(I,0,0)

Dec 11 2022 9:23 PM UTC

}// 140/140

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DazeWare

remix of d/26573 by u/Kopissimooo

function u(t) {

c.width=1920
for(i=-3.5;i<9;i++)
for(j=-3.5;j<9;j++){
x.lineWidth = 5+t;
x.beginPath()
x.arc(1920*i,1080*j,100*(t%10)*2,0,7)
x.stroke()}

Dec 6 2022 4:48 PM UTC

}// 137/140

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UEZ

remix of d/26569 by u/Kopissimooo

function u(t) {

eval(unescape(escape`󩭯󬬨󨼮󬽴󮝬󩜮󩭩󫍴󩝲󘌽󘌧󪝮󭭥󬭴󚌱󙼬󨼮󭽩󩍴󪌽󜜹󜬰󛍢󟜳󛍨󟜱󞜲󜌫󜬪󨬬󭬽󜜰󞌰󚼲󚭢󛍩󟜰󞽩󟌹󞜹󞜻󪜫󟜱󚜊󮌮󩭩󫍬󤭥󨽴󚍨󛼲󚬨󜜫󤼨󪜩󚽴󚬨󜬫󤼨󪜪󪜩󚜩󙝨󛝢󛌨󭬯󜬪󚌱󚽓󚍩󚬪󜼩󚽴󚭓󚍩󚬪󝌩󚜩󙝶󛝢󛍢󛍢󚜻`.replace(/u../g,'')))

Dec 6 2022 7:57 AM UTC

}// 126/140

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#snow #storm

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Xen

function u(t) {

c.width|=0
for(i=99;i--;x.fillRect(z,400,50,200))x.strokeRect(z=400+(i%9)*99+S(t)*300,400,50*S(i)*i,200*C(i)*i)

Nov 27 2022 10:24 PM UTC

}// 111/140

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Brokken

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taupelink

remix of d/26494 by u/taupelink

function u(t) {

eval(unescape(escape`景爨椽㈵㘻椭ⴾ㤹㭸⹦楬氨⤩搽琪⩴ⱸ⹢敧楮偡瑨⡸⹦楬汓瑹汥㵒⡩⭩⩓⡺㵩⩩⤬椫椪匨琩⩃⡺⤬椫椪䌨琩⩃⡺⤬琯搯㘰⤩ⱸ孤☱㼧牥捴✺❡牣❝⡩⼶┹⨲㐰⭩⩃⡺⬽琩Ⱪ┷⨱㠰⭩⩓⡺⤬栽椯搬栬栫ㄫ琩`.replace(/u([^D].)/g,'$1%')))

Nov 23 2022 4:20 AM UTC

}// 140/140

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d/26510

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KilledByAPixel

function u(t) {

r=r=>Math.random()*r
for(i=9;i--;x.quadraticCurveTo(X+r(245),Y+r(140),X+r(245),Y+r(140)))X=t*60%6*335,Y=(t*10|0)*156
x.beginPath(x.fill())

Nov 20 2022 9:52 PM UTC

}// 138/140

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Quadratic Curve Study

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Odog8

function u(t) {

eval(unescape(escape`景爨氽㡥㌻氭ⴻ吽䵡瑨⹲慮摯洩筡㵛䄽吨䈽吨倽儽〩⨴ⴲ⤪㐭㉝㭦潲⡩㴲〻椭ⴻ愮灵獨⡛倬兝㵛倪倭優儫䄬㈪倪儫䉝⤩㭩昨倪倫優儾㐩景爨樠潦⁡⥸⹦楬汒散琨橛そ⨵〰⬱攳ⱪ嬱崪㔰〫㔰〬⸱ⰱ⥽`.replace(/u(..)/g,"$1%")))

Nov 10 2022 6:55 PM UTC

}// 134/140

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Buddhabrot. Please golf further!

u/Odog8

Iter 20
u/Odog8

#waitforit
u/KilledByAPixel

nice! heres my 140 byte one https://www.dwitter.net/d/18241 and a longer one with color https://www.dwitter.net/d/18243
u/Odog8

THanks, those are awesome
u/rodrigo.siqueira

#Buddhabrot

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rodrigo.siqueira

remix of d/26444 by u/rodrigo.siqueira

function u(t) {

for(m=1200;m--;x.fill(x.stroke()))x.beginPath(x.fillStyle=R(m/t,i=m%90,i+i*S(t),.03)),x.arc(960+m*C(K=m/2-t/30),540+m*S(K),i*C(i+t)+i,0,m)

Nov 6 2022 2:43 PM UTC

}// 138/140

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Spiralines #spiral

u/trondkla

So pretty!

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rodrigo.siqueira

remix of d/26442 by u/rodrigo.siqueira

function u(t) {

for(m=1e3;m--;x.fill(x.stroke()))x.beginPath(x.fillStyle=R(m/t,i=m%99,i*t,.06)),x.arc(960+m*C(K=m*m+(t-1.5)**2/7)/t,540+m*S(K)/t,i/t+i,0,m)

Nov 4 2022 11:18 AM UTC

}// 139/140

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Eye of the Vortex

u/magna

Amazing!

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danny@hille.dk

remix of d/26384 by u/danny@hille.dk

function u(t) {

for(w=i=c.width|=r=60;i--;x.beginPath())x.fill(x.arc(960+C(i)*i,540+S(i)*i,(t*19+i&15),0,7))

Oct 27 2022 6:25 PM UTC

}// 92/140

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Optical illusion, are the dots moving towards the center or away from the center? static or swirling?

u/joeytwiddle

sometimes i see/imagine white dots eating the black ones