Random dweets | Dwitter

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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rodrigo.siqueira

remix of d/19239 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,a=0,b=0,n=22)=>a<n?f(X,S(a*a)-b*b+X,2*a*b+t/3-2,n-1):x.fillStyle=`hsl(0 50% ${n*n}%`;i--;x.fillRect(i,90*t,1,999))f(i/400-2)

Jun 26 2020 8:23 PM UTC

}// 139/140

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Mandel bug antennas #mandelbrot

u/Xen

Sexy!

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sandromiccoli

function u(t) {

s=47;for(i=128;i--;)for(j=64;j--;)x.fillStyle=R(o=C(C(i)+j*j+t)*500,o,o,1),x.fillRect(i*s,j*s,s*0.75,s*0.75)

Sep 13 2021 9:00 PM UTC

}// 108/140

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#pattern

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magna

remix of d/21060 by u/jwc

function u(t) {

for(c.width|=i=q=r=s=.1;i<t;x.fillRect(960+16*(q*C(t)+(s-28)*S(t)),540+20*r,4*i/t,4),i+=.01)o=r,r+=(q*(28-s)-r)/50,s+=q*o/50-s/25,q+=(o-q)/5

Dec 25 2020 6:51 AM UTC

}// 140/140

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Golfed to center rotation

u/jwc

Perfect, thanks for spotting that!

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kchplr

remix of d/2938 by u/kchplr

function u(t) {

for(c.style='image-rendering:pixelated',c.width=i=130;i--;)for(j=70;j--;)x.fillRect(i,j,1,C(i*i*j*j*8+frame*8&768)<0)

Aug 9 2017 11:11 AM UTC

}// 117/140

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Same as the original but with c.style='image-rendering:pixelated' to look better and the same size

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ntsutae

function u(t) {

c.width|=X=Y=0,x.lineWidth=4
for(s=H=960,t*=z=90;--z;s*=.96){i=z-t
X+=S(r=S(i/59)*3-C(i/71)*2)*7
Y+=C(r)*7
x.arc(H+X,540+Y,s,2,1)}x.stroke()

Jun 15 2020 4:13 PM UTC

}// 140/140

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#tunnel inspiration: https://twitter.com/ntsutae/status/120538845…

u/katkip

smooth

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adroitwhiz

function u(t) {

a=400
b=170
c.width=568
x.lineWidth=d=3
for(i=1;i<999*t;i++){x.lineTo(a,b)
a+=d%2
b+=(d-1)%2
d=(d+4+((((i&-i)*2&i)>0)*2))%4-1}x.fill()

Dec 20 2019 2:43 PM UTC

}// 134/140

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Dragon checkerboard

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FrenchToast

function u(t) {

x.fillRect(0,0,2e3,2e3);for(i=255;i--;){x.fillStyle=R(i%300,0,i%300*T(t)),x.fillRect(1920/2+T(T(C(t*1.1-i/30)))*i/1,i*5,i*T(t)*5*S(t)/2,10)}

Jan 8 2018 10:52 PM UTC

}// 140/140

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u/Xen

very nice!, gotta remix some time.

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joIlyrancher

remix of d/4720 by u/joIlyrancher

function u(t) {

for(i=0;i<360;i++){
x.fillStyle=R(Math.abs(S(t))*256,0,Math.abs(C(t))*256,.5);
x.fillRect(
940+(C(t)*500)*S(t**2),
500+S(t)*500,
t,
t);}

Dec 29 2017 11:58 PM UTC

}// 137/140

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taupelink

remix of d/26571 by u/taupelink

function u(t) {

eval(unescape(escape`砮獴牯步却祬攽✣䑅䘱✻景爨洽㌵〻洭ⴻ砮晩汬剥捴⠮⸮䄩⥤㴲〪⨭琬砮晩汬却祬攽刨洪䌨洩Ⱪ㵭┱㔷Ⱪ幭Ɽ⽴⤬砮汩湥坩摴栽洪搯㤬䄽孭┵⨴㠰⭭⩓⡭⩭⤬㌶〫洪匨洩Ⱪ⩤Ɑ⩤崬砮獴牯步剥捴⠮⸮䄩`.replace(/u([^D].)/g,'$1%')))

Dec 16 2022 4:24 AM UTC

}// 139/140

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d/26623

u/Xen

love it!

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KilledByAPixel

function u(t) {

for(i=240,t?t=t*60|0:c.width=i;i--;)x.fillRect(i,t,1,S(((i%32-16)**2+(t%32-16)**2<99?(t>>5)*32+i%32:t)**9)**2)

Nov 10 2024 7:20 PM UTC

}// 110/140

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The Coffer Illusion 🧐

u/cantelope

#coffer #cofferillusion
u/cantelope

i have seen this, not sure who made it here
u/fentbiggesthater

same ive seen it too, stolen?, can we get a moderator to check this out✌💕😁
u/KilledByAPixel

i dont think there is a dweet for it, but it is a very well known illusion