Top dweets by u/BriSeven

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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BriSeven

function u(t) {

for(i=7e3;--i;)x.fillStyle=R((d=i%16*119)%256,d/1.4%256,d/7%256),m=i*t/900,n=i/90,x.fillRect(n*S(m)*30,n*C(m)*30,30,30);x.rotate(-1e-3);

Dec 23 2016 8:45 AM UTC

}// 136/140

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BriSeven

function u(t) {

!t?X=[]:0;for(i=99;i;)o=X[i],X[i]=(o+Math.random()*8-4)%2e3||1e3,x.fillStyle=R((d=119*i)%256,d/1.4%256,d/7%256,.5),x.fillRect(o,X[--i],8,8)

Dec 23 2016 12:45 AM UTC

}// 139/140

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u/iverjo

To save one character (avoid the exclamation mark), you can do t?0:X=[]; or X=t?X:[];
u/BriSeven

ah yes, thank you

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BriSeven

remix of d/530 by u/BriSeven

function u(t) {

r=Math.random;for(i=0;i<1024;i++)
x.fillStyle=R((d=(t%220*i/64)|0)%256,d/1.4%256,d/7%256),
x.fillRect((r()*1080&i)-(i/2)+1920/2,i*.9,2,2)

Dec 22 2016 4:08 AM UTC

}// 137/140

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u/iverjo

At first I didn't realise it was multicolor. It gets interesting after 20 seconds, when the green color crawls from the bottom, and other colors follow

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BriSeven

function u(t) {

r=Math.random;for(i=0;i<1080;i++)
x.fillStyle=R((d=119*(i/68|0))%256,d/1.4%256,d/7%256),
x.fillRect((r()*1080&i)-(i/2)+1920/2,i*.9,2,2)

Dec 22 2016 3:00 AM UTC

}// 135/140

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In case you're looking at this and wondering where the Sierpinsky pattern is coming from, it's here: &i

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BriSeven

remix of d/518 by u/BriSeven

function u(t) {

if(!t)X=[];s=2e3;m=100;i=s;while(i)o=X[i],X[i]=(o+Math.random()*80-40)%s||5e2, x.fillStyle=R(S(t)*m+m,0,0,1),x.fillRect(o,X[--i],5,5)

Dec 19 2016 12:50 PM UTC

}// 133/140

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hey lionleaf, dates are a bit funny. this is the last one i did after all the others but appears here chronologically before all the others.

u/BriSeven

no. wait. i was just looking at the hot section and not the new section
u/lionleaf

:)

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BriSeven

remix of d/33681 by u/BriSeven

function u(t) {

eval(unescape(escape`挮獴祬攮晩汴敲㴢楮癥牴⠢੦潲⡩㴭㈻椼ㄱ㭩⬫⥸⹦楬汒散琨㐰〫椪㄰〪⡴⼲〩⭓⠱⽴⤪㄰ⰴ〰⭴⨱〫䌨㤹⽴⭩⼲⤪㄰ⱴ⨵ⱴ⨵⤬砮晩汬却祬攽恨獬⠤筴⭩⨲㕽‹㤥⑻㄰〭琭䌨㤹⽴⤪㥽┩怠`.replace(/u([^D].)/g,'$1%')))

Apr 30 2025 7:06 AM UTC

}// 134/140

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dark rainbow

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BriSeven

remix of d/33672 by u/BriSeven

function u(t) {

T=t*60;G=T^T>>1;for(i=0;i<16;i++)V=G>>i&1,x.fillRect(10*(T%192),i*10+(T/192|0)*10,10*V,10);x.fillStyle=`hsl(0 0%${100-t}%)`

Apr 30 2025 1:23 AM UTC

}// 123/140

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Gray Code Coral

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BriSeven

function u(t) {

T=t*60
for(i=0;i<9;i++)
V = (T >> i) & 1,x.fillRect(10*(T%192),i*10+((T/192)|0)*90,10*V,10)

Apr 29 2025 6:50 AM UTC

}// 91/140

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Binary Tapestry

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BriSeven

function u(t) {

c.width=1920 
for(i=0;i<18;i++)
x.fillRect(400+i*50+S((i%7)*t+(i%13)*t)*100,400+(2+i%3)*20-(1+i%7)*20,50,200)

Apr 17 2025 2:19 AM UTC

}// 110/140

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cicada rhythms

u/Axioplase

#default

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BriSeven

remix of d/28578 by u/BriSeven

function u(t) {

c.width*=1
c.style.filter="blur(9px) contrast(100"
b=(p)=>x.fillRect(i*p-((t%1)*p/100)*100,0,p/5,p*t)
for(i=0;i<90;i++)[73,135,137].map(b)

Oct 31 2023 2:56 AM UTC

}// 138/140

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Ooze

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