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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Current theme challenge: #Food

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MichaMegret

function u(t) {

c.width|=0;for(i=2e3;i--;x.fillStyle='hsl('+[40-i/50,99,99-i/22]+'%)')x.fillRect(960+S(a=i)*C(b=i*i)*(r=99+S(t*2)*i/8),540+C(a)*S(b)*r,3,3)

Mar 2 2026 6:50 PM UTC

}// 139/140

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Particles bond

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Jezza

function u(t) {

A=M=(Y=frame)/60-9;for(X=1919;X--;){B=N=X/60-16;for(i=9;i--;)[A,B]=[C(A-B)+M,S(A+B)+N];x.fillStyle=R(Z=A*A*B*B*50,Z,Z);x.fillRect(X,Y,1,1)}

May 14 2019 1:10 AM UTC

}// 139/140

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u/vinca

beautiful. Similar to ink painting.

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TGY

remix of d/10747 by u/cantelope

function u(t) {

for(i=c.width|=0;--i;x.fill(x.arc(i,i*i*i%1071,25+S(t*4)*25,0,7)))x.beginPath()

May 31 2022 1:53 PM UTC

}// 79/140

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LimeLaser

function u(t) {

r=Math.random
u=r()*32|0
v=r()*18|0
d=[0,2,3,1][(u%2)+2*(v%2)]/2-1
x.fillStyle=R(51*(u/5+d|0),51*(v/3+d|0))
x.fillRect(60*u,60*v,60,60)

Apr 28 2019 2:39 AM UTC

}// 135/140

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Ordered Dithering Of Red-Green Gradient

u/LimeLaser

Simulates a 6-bit-per-channel color scheme. The "d" variable represents an entry in a Bayer matrix; setting d=0 will show non-dithered 6-bit-per-channel gradient.

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username

remix of d/3697 by u/Citiral

function u(t) {

for(i=w=c.width^=0;i-=10;)for(j=1e3;j-=10;x.fillRect(i,j,o,o))o=9+5*C(Math.sqrt((i-w/2)**2+(j-1e3/2)**2)/60-t*5)

Apr 21 2019 11:20 PM UTC

}// 112/140

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casual golf

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KilledByAPixel

remix of d/17226 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁩🐹𞐻𪐭𛐻𩱛𮠽𙱡𩁤𠱯𫁯𬡓𭁯𬀧𧐨𜀬𤠨𪐪𜠬𜠵𝐩𚐬𩱛𮡝𚀱𛀧𘰰𜀰𜀧𚐩𩡩𫁬𤡥𨱴𚀰𛀰𛁆🐲𩐳𛁆𚐬𩡩𫁬𤱴𮑬𩐽𩰽𨱲𩑡𭁥𤡡𩁩𨑬𡱲𨑤𪑥𫡴𚁘👓𚁩𚐪𜑥𜰫𜑥𜰬𦐽𚁓𚁩𚡩𚐪𡠫𭀪𚁩𚰲𞐩𚠹𚐥𜡥𜰭𜠰𜀬𜀬𦀬𦐬𝠹𚱓𚁩𚡩𚐪𜰹𚐻`.replace(/u../g,'')))

Jan 15 2020 7:18 AM UTC

}// 139/140

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Slime Rain ☂

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magna

function u(t) {

c.width=w=511
t?0:b=Array(8).fill(n=0).map(_=>c.cloneNode())
x.drawImage(k=b[n++&7],0,0)
k.getContext('2d').fillText('🎱',n&w,n+S(t)*120&w)

Apr 10 2017 3:20 AM UTC

}// 139/140

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Octobuffering Infinite Balls

Show more comments…
u/magna

Got the plumbing done, but spent only a little time to try to find a nice pattern. Please remix!
u/magna

https://www.dwitter.net/d/2464
u/donbright

lol unfortunately this went way over my head... could you explain what it is?
u/magna

Rendering subsequent frames to a circular list of 8 off-screen buffers and pasting the buffers to the main canvas. Creates an "infinite sprites" effect.
u/New_Core

the effect can be visualy seen how it works at https://www.dwitter.net/d/401 ;)
u/magna

@New_Core Amazeballs!

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katkip

function u(t) {

for(c.width|=i=999;i--;)x.beginPath(),x.arc(950+S(i/6+t/5)*i/2,540+C(i/6+t/5)*i/2,s=C(i/99+S(i*3.1416*C(i/1e5)+t/9)*99)*5+5,s,0,7),x.fill()

Apr 17 2019 1:02 PM UTC

}// 139/140

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#beesandbombs

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solendil

function u(t) {

eval(unescape(escape`𠐽𭀿𦰮𛠮𠐬𮱘𛁙𛁚𯑝𞡛𪐽𜐬𭰽𝰰𜁝𒡊🐨𚐽🡍𨑴𪀮𬡡𫡤𫱭𚀩𚠲𚡷𛑷𒡦𫱲𚁚🐳𜐹𚡩𚰫𚠪𛐮𝠻𦀽𢠨𦐽𢠨𢀽𣑡𭁨𛡨𮑰𫱴𚐩𛁈𚁘𛁙𚐫𦠾𭱼𯁁𛡦𪑮𩀨𨐽🡈𚁘𛑡𛡘𛁙𛑡𛡙𚐼𦠫𨐮𦠩𞰩𞱸𛡦𪑬𫀨𬀽𫡥𭰠𤁡𭁨𜡄𛁰𛡡𬡣𚁘𚰹𝠰𛁙𚰵𝀰𛁚𛀰𛀷𚐩`.replace(/uD./g,'')))

Nov 30 2020 10:42 AM UTC

}// 138/140

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Circle made of circles

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KilledByAPixel

function u(t) {

for(a=i=48;i--;)for(z=Math.random(j=2)*2;j--;x.fillRect(i*a,t*60*a,q?a:a-19,q?a-19:a))x.fillStyle=R(q=z^j,b=q||700,b*t)

Dec 15 2024 4:02 AM UTC

}// 119/140

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Woven 🧵