Top dweets by u/Agnes

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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Agnes

remix of d/7684 by u/Agnes

function u(t) {

with(x)for(c.width|=i=15;i-->1;)for(j=5;j--;beginPath(),a=6.3/j,arc(960,540,150+25*i,o=i*t-a/2,a+o),lineWidth=2*j+5,stroke());

Apr 16 2018 10:57 AM UTC

}// 126/140

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A slightly more boring version of the previous dweet with colours removed to make the circle segments wrap around each other better. There's probably a way to do colour with this.

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Agnes

function u(t) {

w=1920;B=x=>S(x+Math.random());e=w*t/5,o=~~(e/w);o&&q<o&&(c.width+=0);e%=w;for(i=o,v=B(e);i--;v=B(v));x.fillRect(e,540+300*v,5,5);throw(q=o)

Mar 1 2018 1:50 PM UTC

}// 140/140

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Proving a point to a colleague for why high-order trigonometric functions make for a poor random distribution. Not art. :(

u/AnnanFay

Hmm, I don't really understand. This is because you are getting the sine of values in [0,2]?

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Agnes

function u(t) {

;with(x)filter='blur(5px)',t==0&&translate(k=960,540),rotate(Math.random()),fillStyle=`hsla(${t*5},70%,50%,.01)`,fillRect(0,0,s=k*T(t),s);

Feb 17 2018 10:56 PM UTC

}// 138/140

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u/donbright

great

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Agnes

function u(t) {

t==0&&(url=`url(https://source.unsplash.com/random/1920x1080)`);c.style.background=url;c.style.filter=`hue-rotate(${10*t}deg)`;

Feb 8 2018 9:13 PM UTC

}// 127/140

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Agnes

function u(t) {

w=c.width=100;h=c.height=w;a=(d=x.getImageData(0,0,w,h)).data;k=1;d=new ImageData(a.map(i=>i+k*S(t*C(k++))),w,h);x.putImageData(d,0,0);

Feb 2 2018 1:34 PM UTC

}// 135/140

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Agnes

function u(t) {

r=400*(1+C(t));x.lineWidth=1/T(t),x.strokeStyle=`hsla(${180-r/t},50%,50%,${0.25/t})`;x.arc(960,540,r,t,7/T(t));x.stroke();

Feb 1 2018 9:54 PM UTC

}// 122/140

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u/donbright

love the style variations you bring to dwitter, very cool.

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Agnes

function u(t) {

x.fillRect(0,0,w=1920,w);w/=2;for(i=1;i>0;i-=1/w){m=255;x.fillStyle=R(t*i/m,d=m*i,S(t)*i/w,1-i);x.fillRect(w+w*S(t+i),540*(1+C(t**i)),d,d)}

Jan 6 2018 6:27 PM UTC

}// 139/140

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Agnes

function u(t) {

s=255,A=Math.abs,w=1920,q=2*w,h=1080,p=2*h,i=s*t,e=A(i%q-w)-1,y=A(i%p-h)-1,x.fillStyle=R(t,s*C(t)+t,t),x.fillRect(e,y,t*(2+S(t)),t*(2+C(t)))

Jan 5 2018 12:44 PM UTC

}// 140/140

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u/katkip

dvd

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Agnes

function u(t) {

with(x)A=t?A.map((e,i)=>{fillStyle=R(99*e);fillRect(i,frame,1,1);s=A[i-1]+e+A[i+1];return s>0&s<3}):[...Array(2e3)].map(_=>Math.random()>.5)

Jul 16 2026 10:58 AM UTC

}// 140/140

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Genuinely some kind of 1D cellular automaton (don't ask me which one)

u/Agnes

#Trypophobia

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Agnes

function u(t) {

c.width|=0
x.setTransform(t%2>1?-40:40,0,0,40,960,540)
x.fillText(t%1<.5?"🕺":"🫰",-5,5)

Jul 13 2026 10:00 AM UTC

}// 86/140

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Groovy

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