Top #rainbow dweets

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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Xen

remix of d/1791 by u/Run

function u(t) {

for(i=2e3;i--;x.fillStyle=`hsla(${t*X},80%,50%,.01)`)x.fillRect(X=i-S(t-i)*1e3,400+400*C(t+i)+400*S(X/400+t),90,90);

Nov 19 2017 6:23 PM UTC

}// 116/140

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Fixed for chrome users.

u/joeytwiddle

Chrome changed. I recommend 80%,64%,.01 #rainbow #plasma

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davidsover

function u(t) {

x.fillStyle=`hsl(${t*82},99%,50%)`
for(i=0;i<65;i++){x.rotate(t)
x.fillRect(t*500,0,500,50)}

Dec 20 2022 9:17 AM UTC

}// 92/140

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#rainbow

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Xen

remix of d/18555 by u/myro

function u(t) {

for(w=r=1888;r--;x.fillRect(w/2+u,w/4+v,r/6,r/6))u=r*C(a=r-t*w%w),v=r*S(a),x.fillStyle=`hsl(${a*t},69%,50%,.1)`

Jun 25 2020 5:00 PM UTC

}// 111/140

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-Enjoy The Trip-

u/Xen

are you to watch for the entire length of any EDM track (Bassline/Dubstep/DnB)
u/Xen

#hypno #xweet #rainbow #waitforit

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Xen

remix of d/14732 by u/New_Core

function u(t) {

for(i=1e3;i--;x.fillRect(960+i*S(i)*Z,540+i*C(i)*Z,a=i/(7+C(t)*5)*Z,a))Z=2**T(9*i+t*9),x.fillStyle=`hsla(${i/2+t*9},99%,50%,.05)`

Jun 24 2019 11:54 AM UTC

}// 129/140

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#trippy #rainbow

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f8f82804

remix of d/12142 by u/f8f82804

function u(t) {

with(x)t||fillRect(t,t,a=5e3,a),setTransform(9,0,0,9,960,540),rotate(w=t&&w<a?w+2.4:1),fillStyle=`hsl(${t}rad 95% 50%`,fillRect(w**.5,0,2,2)

Feb 4 2019 7:57 PM UTC

}// 140/140

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#rainbow #phyllotaxis with #squares -- thanks to u/pavel

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Xen

remix of d/8111 by u/loernz

function u(t) {

for(i=2e3;i--;x.fillStyle=`hsla(${i*C(t*2)+h},90%,50%,.02)`)x.fillRect(960+(h=S(i+t)*i/2),i-i/3-C(5*t+i/2e3+h*h/1e9)*h*i/4e3,s=169/i**.1,s)

May 16 2018 10:47 PM UTC

}// 139/140

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slight tweak

u/joeytwiddle

#rainbow

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katkip

remix of d/13374 by u/katkip

function u(t) {

r=Math.random;for(i=999;i--;)p=r()*7,R=r()*p*99,x.fillStyle=`hsl(${p*p*R/9} 99%${R/9}%)`,x.fillRect(960+(X=C(p)*R),540+(Y=S(p)*R),9,9)

Apr 22 2019 11:41 AM UTC

}// 134/140

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Fibonacci rainbow #random #color #rainbow

u/katkip

Also shows protons flying near a black hole

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CocoMeister

remix of d/7772 by u/CocoMeister

function u(t) {

d=new Date()
for(i=0;i<1920;i++){
x.fillStyle="hsl("+i/3+",90%,50%)"
x.fillRect(t*Math.random()*100,i,d.getHours()+6,d.getMinutes()*2+1)
}

Apr 28 2018 7:01 PM UTC

}// 138/140

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Timed rainbow #color #time #rainbow

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CocoMeister

function u(t) {

c.onmousemove=e=>m=e
c.width=1920
for(i=7000;i>=0;i-=20){x.fillStyle="hsl("+C(t/3)*i*4+",90%,30%)"
x.fillRect(m.x-i/2+700,m.y-i/2+500,i,i)}

Apr 24 2018 6:39 PM UTC

}// 139/140

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#rainbow #mouse

u/lionleaf

#interactive

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f8f82804

function u(t) {

for(i=c.width=1760;i--;x.fillRect((i>>5)<<5,((i&32?i:~i)&31)<<5,32,32))x.fillStyle=`hsl(${i/4.8} 50% 50%`;

Jan 2 2022 9:14 PM UTC

}// 106/140

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#rainbow #boustrophedon

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