Dweets awesomed by u/bandaloo

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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KilledByAPixel

function u(t) {

for(t*=b=540,i=3e3;j=i--/470;x.fillRect(960+t*S(j),b+t*C(j),9,9))a=(i/64+(t>>6)|0)%2,x.fillStyle=t%64<9?a^t>b?R():'#fff':R(b*!a,t/5,b*a)

Oct 2 2020 6:44 PM UTC

}// 136/140

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False Motion Optical Illusion 👁️👁️

u/KilledByAPixel

#illusion

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rodrigo.siqueira

remix of d/20153 by u/Leodude123

function u(t) {

x.fillRect(0,0,w=2e3,w)
for(i=670;i--;x.strokeRect(99+i,420+i,w,w))x.setLineDash([i]),x.lineDashOffset=-990%i+t*i,x.strokeStyle=R(9,i/2,i*2)

Oct 2 2020 1:12 PM UTC

}// 140/140

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#chess #waterfall

u/Leodude123

#awesome!
u/magna

YES!

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁩🐱𝠻𪐭𛐻𚑢𩑧𪑮𤁡𭁨𚁦𪑬𫁓𭁹𫁥👒𚁩𙐲𚠲𝐵𚐩𛁡𬡣𚁘🐹𝠰𚱃𚁡👩𙐲𚠳𛠱𝀫𭀩𚡔𛁙🐵𝀰𚱓𚁡𚐪𥀬𥀽𜠴𜀬𜀬𝰩𛁦𪑬𭁥𬠽𪐼𜐴🰧𪑮𭡥𬡴𚀧𞠧𫡯𫡥𙰬𪐼𜐴🱤𬡡𭱉𫑡𩱥𚁣𛁘𛑔𛁙𛐱𜰵𛀴𞀰𛀲𝰰𚐺𩡩𫁬𚀩𞰻`.replace(/u../g,'')))

Sep 30 2020 8:06 PM UTC

}// 132/140

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Fractal #Yinyang ☯

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danny@hille.dk

remix of d/19972 by u/danny@hille.dk

function u(t) {

for(c.width|=X=60;X--;)for(T=Y=34;Y--;)x.fillStyle=R(m=99*(S(X*Y+Y/2*Y/9*(S(t
/9)))/222**C(Y/9*S(t)+X/11*C(t))),m/9),x.fillRect(X*T,Y*T,T,T)

Sep 30 2020 6:35 PM UTC

}// 140/140

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u/sigveseb

nice one!
u/danny@hille.dk

WebGL version: http://glslsandbox.com/e#68778.0

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katkip

function u(t) {

f=(x,n=22)=>n>0?f(x/(1-x)-1,n-1):x

c.width=200
x.fillText(-f(t),50,60)

Sep 30 2020 5:44 PM UTC

}// 71/140

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why does my program print the golden ratio?

u/danny@hille.dk

without recursion: for(X=i=22;t==0&&i--;)X=X/(1-X)-1;x.scale(14,14),x.fillText(-X,10,10)

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anotherkitten

function u(t) {

for(j of[-8,8])for(i=99;--i;x.fill(p=new Path2D(),p.arc((t+(6+S(t)/8)*i**.5)*699%3e3-99,540+j*i,9+i*2,0,8)))x.fillStyle=R(265-i,265-i*7,225)

Sep 29 2020 6:50 PM UTC

}// 140/140

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odd crystals

u/anotherkitten

(fullscreen for max pretty)

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anotherkitten

function u(t) {

c.width|=0
for(j=25;j--;)for(i=13;i--;)x.fill(p=new Path2D(),p.arc(40+80*j,80+80*i,(P=6+6*C(((j-12)**2+(i-6)**2)**.8+t))*S(t*5)+30-P,0,8))

Sep 28 2020 4:32 PM UTC

}// 138/140

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solendil

function u(t) {

[C,S]=[S,C]
for(i=j=1920,w=32;i--;x.fillRect(i&-w,i%w*w,w,w))x.fillStyle=R(0,0,S[i]=T(t*i)>j?j:((C[i+1]+C[i-1]+C[i+w]+C[i-w])/2-S[i])*0.9|0)

Sep 28 2020 4:08 PM UTC

}// 140/140

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Rain

u/dull_pixel

#storm

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taupelink

remix of d/19975 by u/taupelink

function u(t) {

r=Math.random;for(i=k=128;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*9)*16,x.fillStyle=R(h=k*C(Y%(C(X-X*X/16)+S(Y))+X*3%(1+Y/6))+i,h+i,h%k)

Sep 27 2020 2:26 AM UTC

}// 138/140

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d/20122

u/Xen

crop circle?
u/taupelink

Yep, that's what came to mind as I was experimenting. Like an infinity-symbol crop circle

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taupelink

remix of d/20024 by u/taupelink

function u(t) {

r=Math.random;for(i=k=128;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*9)*15,h=k*C(C(p=12+8*S(X/5))%S(q=4+2*S(Y))*p%q),x.fillStyle=R(h+k,h,k-h)

Sep 25 2020 2:10 AM UTC

}// 140/140

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d/20098

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