Dweets awesomed by u/BackendForth

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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contone

function u(t) {

c.width|=0
for(i=3e3;i--;)
x.fillStyle=R(i%255),
x.fillRect(20*S(i/3+(t%.7)*9)+940+S(u=i/23.8)*i/5,500+C(u)*200+i/150*20*S(i/150/9),40,50)

Apr 22 2021 3:11 AM UTC

}// 138/140

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contone

remix of d/22584 by u/contone

function u(t) {

c.width|=0
for(i=2e3;i--;)
x.fillStyle=`hsl(${i*99},99%,50%)`,
x.fillRect(960+S(u=i/23.8)*900,(C(u)+S(4*t-i/4))*20+i*2*245.06%1e3,52,40)

Apr 21 2021 9:48 PM UTC

}// 136/140

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contone

remix of d/22583 by u/contone

function u(t) {

c.width|=0
for(i=2e3;i--;)
x.fillStyle=`hsl(${i},99%,50%)`,
x.fillRect(960+S(u=i/24)*i,(C(u)+S(9*t-i/4))*20+500,i/20,i/4)

Apr 21 2021 9:28 PM UTC

}// 121/140

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u/lars-erik

Wow! Manage to isolate the lower part of that visualization and you've got a really nice water animation. Other colors... 👌

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BackendForth

function u(t) {

x.globalCompositeOperation="xor"
if(!t)a=b=9,d=0
x.fillRect(a-d/2,b-d/2,d,d)
d+=t
if(d>t*9)d=0,a=Math.random()*1920,b=Math.random()*1080

Apr 21 2021 12:31 PM UTC

}// 136/140

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What my phone sees when I try to scan a QR code

u/lars-erik

Nice. Could you the other "don't xor", I wonder. Could make for a less chaotic effect when it grows.
u/DataMeta

#waitforit #keepsongiving

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BackendForth

function u(t) {

c.width|=0
f=(n)=>960+99*C(n/9)+99*C(n)
g=(n)=>540+99*S(n/9)+99*S(n)
for(i=19;i--;x.stroke())x.moveTo(f(b=t*i),g(b)),x.lineTo(f(a=b+t),g(a))

Apr 20 2021 7:15 PM UTC

}// 140/140

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u/lars-erik

All the beautiful patterns in one. :D Love it!

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rodrigo.siqueira

remix of d/22565 by u/rodrigo.siqueira

function u(t) {

if(!t){for(a=-3;0>a;a++)for(b=-3;b<4;b++)for(C=-3;C<3;C++)for(X=680;X--;)Y=(C*99+S(X)*a*(X-340))/b,x.lineTo(X*3,548+9*Y/X-X/Y)
x.stroke()}

Apr 20 2021 4:49 PM UTC

}// 138/140

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Spectral Sound Waves

u/Xen

Destroys my laptop :-(

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BackendForth

function u(t) {

c.width=96
x.lineWidth=9
x.miterLimit=1
v=(a,b)=>x.lineTo(a+65,b+27)
v(0,0)
v(g=C(t)*20,h=S(t)*20)
v(g-(1999-h*h)**.5,0)
v(-99,0)
x.stroke()

Apr 20 2021 2:45 AM UTC

}// 140/140

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Cranking away . . .

u/erin

username fits

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clavigne

function u(t) {

a=(c.height=1080)/2;x.translate(960,a);for(n=1;n<99;n++){x.rotate(30*(r=a*S(n)**2)/a);w=20*S(s=t+n+r);x.fillRect(r*C(2*s+1.6),0,w,w)}

Apr 19 2021 8:06 PM UTC

}// 133/140

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u/deltuhvee

Oort Cloud
u/magna

125: a=(c.height|=0)/2;x.translate(960,a);for(n=99;n--;x.fillRect(r*C(2*s+1.6),0,w,w))x.rotate(30*(r=a*S(n)**2)/a),w=20*S(s=t+n+r)

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BackendForth

function u(t) {

for(c.width|=i=0;i<9;i++)
for(j=1080;j-=4;)
x.fillRect(i*240,j,t*9*S(t*i+j/t),4)

Apr 18 2021 12:38 PM UTC

}// 80/140

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u/Xen

#waitforit love it!
u/DataMeta

#keepsongiving cool!

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KilledByAPixel

remix of d/22480 by u/KilledByAPixel

function u(t) {

with(x)for(i=h=c.height|=0;i--;fill(arc(X=i*(i+t)%3e3-600,C(i)*h,i?h/i:1e4,0,7)))beginPath(globalCompositeOperation='xor')

Apr 14 2021 11:59 PM UTC

}// 122/140

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Backspace 🌒

u/sigveseb

noice!

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