Dweets awesomed by u/tomxor

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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whatever420

function u(t) {

c.a=c.a>0?c.a-0.01:1.0;
x.fillStyle=R(c.a*255, 100, 100);
x.fillRect(0,0,c.width,c.height)

Nov 14 2020 6:32 AM UTC

}// 90/140

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:fish_cake:

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DataMeta

remix of d/20446 by u/DataMeta

function u(t) {

for(c.width=134,i=682;i--;)x.fillRect(4*(i%36),4*(i/36|0),C(i)/T(t-i)/2,S(i)/T(t+i)/2)

Nov 14 2020 5:53 AM UTC

}// 87/140

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u/katkip

beautiful
u/DataMeta

thnx!

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dnmc

function u(t) {

Y=(a)=>(a+1)/2
r=(c)=>Math.random()*c
x.fillStyle=R(Y(S(t))*255,r(200),r(200))
x.fillRect(Y(C(t))*1900,Y(S(t*t))*800,50,Y(S(t))*200+40)

Nov 14 2020 5:46 AM UTC

}// 135/140

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dnmc

function u(t) {

c.width=1920
for(q=0;q<192;q++)for(w=0;w<108;w++)if(q*w%Math.round(S(t/5)*50)!=0){x.fillStyle=R(C(t)*200);x.fillRect(q*10,w*10,10,10)}

Nov 14 2020 5:11 AM UTC

}// 134/140

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Mystery boxes

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pavel

function u(t) {

with(x)for(c.width|=i=78,translate(960,540);j=i*i--/5;rotate(!fillRect(j+=(S(t-j/99)-1)*1e5/j,j*=j>0,j*=-2,j)))fillStyle=R(89,a=222-j/4,2*a)

Nov 14 2020 4:47 AM UTC

}// 140/140

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Generative art by Alexander Tabakov

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dweet

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<3;i++)
x.fillRect(400+i*100+T(t)*300,400,50,50) // draw 50x200 rects

Nov 14 2020 4:10 AM UTC

}// 111/140

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Zoooom! Still learning js. :)

u/Xen

welcome to the dwitter family

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rodrigo.siqueira

remix of d/20589 by u/rodrigo.siqueira

function u(t) {

for(i=5e3,c.width|=f=g=>500*(T(i+t/9))*g(i*i+t/2);i--;x.lineWidth=2)x.strokeRect(960+f(C),540+f(S),s=.9*T(i/91),s)

Nov 14 2020 1:40 AM UTC

}// 114/140

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Rotating squares galaxy #squares

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taupelink

remix of d/20583 by u/taupelink

function u(t) {

r=Math.random;for(i=k=230;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*5)*9,h=k*S(Y%S(p=2*X-X*X*.24)*p%C(q=Y*2%3-2)),x.fillStyle=R(h*q,h*p,h*5)

Nov 14 2020 1:05 AM UTC

}// 140/140

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d/20591

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rodrigo.siqueira

remix of d/20575 by u/geb

function u(t) {

for(i=5e3,c.width|=f=g=>99*(T(i+t/5))*g(i*i);i--;)x.strokeRect(960+f(C),540+f(S),s=5*S(i/1e3),s)

Nov 13 2020 1:20 PM UTC

}// 96/140

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Use fullscreen for dizzying effect. #stars

u/donbright

heh that really is weird in fullscreen
u/magna

I got dizzy and can't get out of fullscreen HALP!

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donbright

remix of d/14974 by u/donbright

function u(t) {

宽=999
for(i=-宽;i<宽;i+=9)for(j=-宽;j<宽;j+=9){
b=i*i+j*j
r=i*i-j*j
g=2*i*j
n=frame+99
x.fillStyle=R(r*r%n,g*g%n,b*b%n)
x.fillRect(i+宽,j+宽,9,9)}

Nov 13 2020 7:18 AM UTC

}// 140/140

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#symmetry

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