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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taupelink

remix of d/35449 by u/taupelink

function u(t) {

for(i=z=1080;i--;x.fillRect(320*t,i,z*=1+C(i/120-z)*C(t-z)/z,z&23))x.fillStyle=R(r=288-(z=z%8.1*2|0)**2,r,r,(z+=3-S(i**.5/++z)*(-.65)**z)/r)

Jun 8 2026 2:05 AM UTC

}// 140/140

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d/35552

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Tekmap

remix of d/12755 by u/Jezza

function u(t) {

x.fillRect(0,0,1920,1080);X=S(t/2)*6+16;Y=S(t/2.3)*6+9;x.globalAlpha=.05;for(i=99;i--;)Z=C(Y),Y+=S(X),X+=Z,x.clearRect(X*60,Y*60,3,i)

Jul 22 2021 4:25 PM UTC

}// 133/140

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coderkid

function u(t) {

t||(w=q=1e3,s=a=10);c.width^=0;w+=s;q+=a;x.font="15em 💩";x.fillText("🎱",w,q);if(w>1688||w<0)s*=-1;if(q>1079||q<231)a*=-1;

Jan 2 2018 1:45 AM UTC

}// 121/140

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AlgNinja

function u(t) {

c.width+=0;m=Math.random();t||(a=1920*m,b=1080*m,d=e=8);x.fillRect(a,b,9,9);a+=d;b+=e;1920<a|0>a?d=-d:1080<b|0>b?e=-e:a;

Apr 28 2020 5:20 AM UTC

}// 120/140

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My first dweet!

u/sigveseb

Nice!

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Agnes

remix of d/22617 by u/Agnes

function u(t) {

for(q=100;--q;Q=t?Q+`l ${e} ${f}`:"M 960 540")l=t?l+(e*e+f*f)**.5:0,e=3*S(a=l**t*q),f=3*C(a);x.strokeStyle='#0000'+l,x.stroke(new Path2D(Q))

Apr 25 2021 12:44 PM UTC

}// 140/140

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Slightly more artistic seahorse pattern

u/Agnes

This one also stopped drawing patterns for me after I restarted my PC. :(

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dogspace

function u(t) {

a=137.5
c=20
//adjust ^^^
v=t*10
a=v*a
r=c*Math.sqrt(v)
x.fillStyle=`hsl(${(~~v)%360},100%,50%)`
x.fillRect(r*C(a)+960,r*S(a)+540,30,30)

Mar 7 2018 4:58 AM UTC

}// 136/140

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Interactive dweet! adjust the variables above for new patterns

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DirtyDan

remix of d/5686 by u/DirtyDan

function u(t) {

p=Math.PI
a=960
b=535
c.width+=0
for(i=0;i<a;i+=10)for(j=0;j<b;j+=10)
x.fillRect(a+b*C(i/a*p)*S(j/b*p*T(t/2)+i),b+b*S(j/b*p)*C(i/a*p+t),8,8)

Feb 17 2018 8:46 PM UTC

}// 140/140

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lars-erik

remix of d/22615 by u/lars-erik

function u(t) {

c.width=w=167,f=n=>n|0,o=f(t*50),b=45
for(z=w;z--;)for(y=96;y--;)if(f((z+o)*y)%b==0)x.fillRect(z-1,y,4,4)

Apr 24 2021 3:06 PM UTC

}// 106/140

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I have no idea what I'm doing™ #4.5

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marquisdegeek

function u(t) {

eval(unescape(escape`󤼽󝬴󛍗󟜲󝜶󒭦󫽲󚍩󟜶󩜳󞼡󭌦󙭩󛜭󞼩󭽩󭍨󚍸󚝳󨝶󩜨󣌽󫍩󫭥󥍯󛭢󪝮󩌨󮌩󚜬󭍲󨝮󬽬󨝴󩜨󪜥󥼪󤼬󪜯󥼪󤼩󛍲󫽴󨝴󩜨󚌨󣝡󭍨󛭲󨝮󩍯󫜨󚜪󝌩󯌰󚜪󜜮󝜷󚜬󨭥󩽩󫭐󨝴󪌨󫍩󫭥󥽩󩍴󪌽󞌩󛍌󚍓󛌰󚜬󣌨󤼯󜬬󤼯󜬩󛍌󚌰󛍓󛼲󚜬󣌨󤼬󤼩󛍲󩝳󭍯󬭥󚍳󭍲󫽫󩜨󚜩`.replace(/u../g,'')))

Jan 21 2026 4:23 PM UTC

}// 139/140

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An attempt at Truchet’s Tiles, but with vector graphics

u/Axioplase

Attacked by a swarm of ninjas...
u/ximavus

This reminded me of a book I have named "The black art of 3D game programming" and it does cover vector graphics. Its also from 1995 so its DOS programming

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KilledByAPixel

remix of d/22480 by u/KilledByAPixel

function u(t) {

with(x)for(i=h=c.height|=0;i--;fill(arc(X=i*(i+t)%3e3-600,C(i)*h,i?h/i:1e4,0,7)))beginPath(globalCompositeOperation='xor')

Apr 14 2021 11:59 PM UTC

}// 122/140

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Backspace 🌒

u/sigveseb

noice!