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

remix of d/3559 by u/BriSeven

function u(t) {

if(!t)d=[];Y=X=t*20;for(i=0;i<1e3;i++) D=(d[i]||1),d[i]=D+S(D*t*i)/9, x.fillRect(X+=C(d[i]), Y+=S(d[i])*9, 5, 5);x.fillStyle=R(S(t)*i/4)

Feb 26 2020 4:44 AM UTC

}// 136/140

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Strata #growth #random

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BriSeven

remix of d/579 by u/BriSeven

function u(t) {

m=127;x.fillStyle=R(C(h=t/2)*m+m,S(h-.5)*m+m,S(-h-.5)*m+m);x.fillRect(t*m,0,4,2e3);x.drawImage(c,2*C(t),0,1920,1060)

Nov 14 2019 2:31 AM UTC

}// 116/140

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Incorporating changes from the comments.

u/Xen

nice

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BriSeven

remix of d/3487 by u/BriSeven

function u(t) {

t<0.1?(x.x=0, x.y=1000,j=5.5):null;
for(i=0;i<10;i++)m=t*3,
x.fillRect(x.x+i*300, x.y, 5, 5);
x.x+=8*S(C(m)*j), x.y+=8*C(S(m)*j);

Nov 8 2017 11:37 AM UTC

}// 131/140

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BriSeven

remix of d/585 by u/BriSeven

function u(t) {

m=140;x.fillStyle=R(C(h=t/2)*m+m,S(h-.5)*m+m,S(-h-.5)*m+m,.004);x.fillRect(99+t%13*m,0,4,2e3);x.drawImage(c,6*C(t*3),0,1920,1078)

Jan 5 2017 1:36 AM UTC

}// 129/140

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spoke too soon. you can push this even further

u/BriSeven

turn the opacity of the fill up to .5 to see some mad
u/iverjo

trippy ^^

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BriSeven

function u(t) {

for(i=0;i<1920;i+=1){x.fillStyle=i%2?"#FFF":"#000",x.fillRect(i*4+S(t)*20,(t*t*t%(i*i))%997.997,8,8)}

Dec 25 2016 2:10 AM UTC

}// 102/140

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u/iverjo

Moiré
u/BriSeven

i actually posted this on accident looking for a cheaper way to get randomish looking numberss than Math.random()
u/iverjo

Good quest
u/iverjo

In some cases T(veryLargeConstant*x) or S(veryLargeConstant*x) can look random enough

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BriSeven

remix of d/548 by u/BriSeven

function u(t) {

for(i=750;--i;c=256)x.fillStyle=R((d=i%16*27)%c,d/19%c,d/3%c),m=i*(t+4e3)/1e3,n=10*i/200,x.fillRect(n*S(m)*30+960&2047,n*C(m)*30&1023,20,50)

Dec 23 2016 8:39 AM UTC

}// 140/140

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u/donbright

this made me lol

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BriSeven

function u(t) {

e=2e3;for(i=e;--i;)x.fillStyle=R((d=i%16*119)%256,d/1.4%256,d/7%256),m=i*t/100,n=10*i/200,x.fillRect(n*S(m)*30+1e3,n*C(m)*30+500,20,20)

Dec 23 2016 5:11 AM UTC

}// 135/140

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u/donbright

these colors are "lit" as the kids say
u/donbright

superb
u/joeytwiddle

really nice for a long watch

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BriSeven

remix of d/522 by u/BriSeven

function u(t) {

for(i=16;i--;)x.fillStyle=R((d=i*S(t)*20+119*i)%256,d/1.4%256,d/7%256,.1),x.fillRect(120*i+30*S(13*t%i)+50,500*C(t/7)+500,40*S(t/i*3)+55,30)

Dec 22 2016 1:04 AM UTC

}// 140/140

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Holiday glass, using an adaptation of new_core's iteration on the colour palette trick, which I was able to shave down further to x.fillStyle=R((d=119*i)%256,d/1.4%256,d/7%256)

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BriSeven

remix of d/523 by u/iverjo

function u(t) {

x.globalAlpha=0.25;for(i=0;i<16;i++)x.fillStyle="#"+(i*t*20>>>0).toString(16),x.fillRect(i*160+S(t)*300-300,0,161,1080)

Dec 20 2016 10:30 PM UTC

}// 119/140

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made the constant into t, added some motion blur to make it less seizure inducing.

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BriSeven

remix of d/521 by u/BriSeven

function u(t) {

c.width=1920;for(i=0;i<16;i++){x.fillStyle="#"+(i*0x775511).toString(16).slice(-6);x.fillRect(i*160+S(t)*300-300,0,160,12000)}

Dec 20 2016 9:08 AM UTC

}// 127/140

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fixed the hex string.

u/lionleaf

That's cool!
u/New_Core

other way, same colors, but not better way: for(i=16;i--;)x.fillStyle=R((d=i*parseInt(77,16))%256,(d/1.4)%256,(d/7)%256),x.fillRect(i*160+S(t)*300-300,0,160,1080)

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