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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keithclark

function u(t) {

for(a=1e4,c.width=$=127,J=S(t/=2)/7;a--;'p}¶¼<¼¶}p'.charCodeAt($+Y*C(t)-X*J&15)>>(X*C(t)+Y*J+$*t)%15&1&&x.fillRect(X,Y,1,1))X=a&$,Y=a>>7

May 3 2017 1:18 PM UTC

}// 138/140

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rotozoomer

u/p01

:)
u/p01

Save 4 bytes using
u/p01

x.fillRect(X,Y,1'p}¶¼<¼¶}p'.charCodeAt($+Y*C(t)-X*J&15)>>(X*C(t)+Y*J+$*t)%15&1)

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f8f82804

remix of d/10805 by u/f8f82804

function u(t) {

c.width=480;for(i=6;i--;x.lineTo(a=240+S(p)*z,b=2*z-150),x.font=z/4+'px a',i&&x.fillText('🔥',a-z/8,b))z=600/(4+C(p=t-2.5133*i));x.stroke()

Nov 1 2018 6:19 PM UTC

}// 138/140

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#perspective #pentagram #witchcraft #iknowitsnovember

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katkip

remix of d/975 by u/Chinafreak

function u(t) {

for(c.width=w=1920,w/=2,r=470,i=0;i<99;i+=.5)z=i*t/99,x.lineTo(w,540),x.lineTo(w+r*S(i),540+r*C(i)),x.lineTo(w+r*S(z),540+r*C(z));x.fill();

Oct 5 2018 7:50 PM UTC

}// 139/140

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A weird circle.

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46uuuu

function u(t) {

throw String.fromCharCode(t**t).repeat(t**t)

Jun 17 2026 3:53 AM UTC

}// 44/140

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#lagging #chaos

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saon

function u(t) {

c.width=1920 // clear the canvas
for(i=4;i--;)for(j=200;j--;)
x.arc(960+S(t)*i,540+C(t)*j,j*i,0,6.28)
x.stroke()

Feb 2 2019 5:51 PM UTC

}// 114/140

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sj_

remix of d/6243 by u/sj_

function u(t) {

c.width=1920;for(i=0;i<9;i++){x.ellipse(900+200*S(t*i)+i*5,500+(t*10)*S(i/t*10)*T(i),10,10,0,0,360);x.fillStyle=R(5*t,20*i,100,.5);x.fill()}

Jan 20 2018 11:08 AM UTC

}// 140/140

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Butterfly 1

Show more comments…
u/aleamb

nice!
u/joeytwiddle

Novel style
u/Xen

nice one :-)
u/magna

Sweet!
u/sj_

thanks y'all!
u/donbright

superb

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rodrigo.siqueira

remix of d/34641 by u/rodrigo.siqueira

function u(t) {

x.fillRect(x.globalAlpha=.07,0,2e3,2e3)
for(i=868;i--;)for(j=15;j--;x.clearRect(960+S(i/4-t/9)*r,540+C(j)*r+j*88-360,3,3))r=S(i)*30*j|T(i*t)

Dec 24 2025 2:58 PM UTC

}// 140/140

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Blinking Christmas Tree v2 #christmas #xmas #tree

u/lewdev

Wow, that's amazing!
u/joeytwiddle

Pretty!

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rodrigo.siqueira

remix of d/33944 by u/rodrigo.siqueira

function u(t) {

for(i=6e4;i--;c.style.filter=`sepia(.6)invert(`)r=S(n=i/t)**-.5,X=C(k=i/2),Y=S(k),Z=r*r*S(C(k+r*3))/1e3,x.fillRect(1135+X/Z,680-Y/Z,.1,t<2)

Jun 9 2025 6:57 PM UTC

}// 139/140

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Light beyond the spiral #spiral

u/Xen

nice!
u/cantelope

looks great

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5Mixer

function u(t) {

c.width=700
for(a=0;a<99;a++)for(b=0;b<99;b++){x.moveTo(a*30,b*30)
x.lineTo(a*30+S(b+S(t)*a)*70,b*30+C(b+S(t)*a)*20)}x.stroke();

May 26 2017 4:19 AM UTC

}// 128/140

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loktar

function u(t) {

eval(unescape(escape`𩡯𬠨𮐽𘑴𙠦𦰰𧑼𯁹𛁷🐲𩐳𛁨🐱𜀸𜀬𪐽𜐬𮀮𩁲𨑷𢑭𨑧𩐨𨰬𜀬𜀬𭰬𪀬𜀬𛐱𛁷𛁨𚐻𪐼𭰻𚑹𦱩𧐽𭀦𙠨𮑛𪑝𚰹𚡍𨑴𪀮𬡡𫡤𫱭𚀩𚱹𦱩𛐱𧐩𛰭𜡼𯀭𮑛𪐭𜑝𛁌🐲𜀪𮑛𪑝𛁸𛡦𪑬𫁓𭁹𫁥👠𬡧𨠨𜀬𙁻𣁽𛀤𮱌𯐩𨀬𮀮𩡩𫁬𤡥𨱴𚁩𛁨𛀱𛀭𮑛𪑝𚐬𪐫𚰻`.replace(/uD./g,'')))

Jun 19 2019 11:09 PM UTC

}// 138/140

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Just a random scroller original vs is from 2013, https://codepen.io/loktar00/details/BCEvp

u/KilledByAPixel

good texture
u/Xen

very nice!
u/katkip

looks like #waves
u/magna

#texture