Top dweets of all time

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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katkip

function u(t) {

c.width=400;
f=(a,b)=>S(S(a)*C(b)+t*9)<C(a*2)+S(b*2)
for(i=200;i--;)for(j=113;j--;){if(f(i/9,j/9))x.fillRect(i*2,j*2,2,2)}

Jan 15 2020 2:17 PM UTC

}// 122/140

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Perfect #loop

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pavel

function u(t) {

for(let i=c.width|=0,p=355/226;i--;x[i&5?'arc':'moveTo'](960,540,2e3/z,b=p/4*((i>>3)+S(i*p)/2+4*t+z/2),b))z=2-4*t%1+(i>>7)+C(i*p)/2;x.fill()

Jan 11 2020 8:41 PM UTC

}// 140/140

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Aw this is broken in Safari

u/aleamb

#tunnel #d3

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pavel

remix of d/11225 by u/veubeke

function u(t) {

T<150&&!D.some(d=>Math.hypot(d.p-p,d.q-q)<d.T+T)?x.beginPath(x.fill(x.arc(p,q,T+=2,0,7,0))):(D=t?[...D,{p,q,T}]:[],p=t**7%2e3,q=p*p%1e3,T=0)

Jan 8 2020 6:07 AM UTC

}// 140/140

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Blots

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KilledByAPixel

function u(t) {

x.fillRect((T=-~T)%32*60-((z=T>>5)%2-(q=S(T*T)<0))*30,(z-q)*30,q?6:66,q?60:6)

Jan 7 2020 7:01 PM UTC

}// 77/140

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Mini #Maze #Truchet

u/Xen

Amazing! :-O
u/katkip

amazeing
u/sigveseb

next step: solving the maze

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pavel

function u(t) {

for(i=c.width|=q=C(t);i--;x.fillRect(960+2e3*(X-j*q)/Z,540+46*s,s,-99*s))j=(i/30+t)%64,X=S(a=j+t)-S(t)+1.5/S(a*a),Z=j+X*q,s=42*(1+q*q)**.5/Z

Jan 1 2020 1:25 AM UTC

}// 140/140

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Where am I?

u/andrea270872

3d forest POV... love it!
u/lionleaf

Arashiyama? Or maybe Wolfenforest 3D?
u/joeytwiddle

I like to take the corners gently with q=-S(t)/2

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rodrigo.siqueira

remix of d/16995 by u/pavel

function u(t) {

for(let i=5e3,j,s;j=--i>>4;x.fillRect(960+(j%8*2+i%2-7.5)*s,C(2/t)*570+(i%16-8.5+9)*s,s,s))x.fillStyle=R(s=600/((j>>3)+1-t*30/11%1),s/2,s/4)

Dec 30 2019 12:05 AM UTC

}// 140/140

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#perspective #squares

u/rep_movsd

#underrated
u/deobfuscate

Yes, please destroy my mind.

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KilledByAPixel

remix of d/16804 by u/KilledByAPixel

function u(t) {

with(x)for(c.width|=q=r=540;r-=20;beginPath(stroke()))for(i=40;a=i-->>3;ellipse(960,q+a%2*r-r/2,r,r/2,0,b=(i-a+(z%2<1&&z))%4*1.57,b))z=t+r/q

Dec 6 2019 4:20 PM UTC

}// 140/140

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Staggered Cubes Micro

u/KilledByAPixel

Dang, I had a feeling pavel already did this one... https://www.dwitter.net/d/10900
u/metamero

beautiful #moire effect
u/katkip

pavel's is smoother but yours is reversed and look better

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KilledByAPixel

function u(t) {

for(i=c.width|=0;i--;)x.arc(960,540,i,i/20,i/t)
x.stroke()

Nov 25 2019 6:15 AM UTC

}// 58/140

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#WaitForIt

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robbyg

remix of d/16500 by u/DataMeta

function u(t) {

r=Math.random
for(j=576;j--;x.fillStyle=R(a=r()*255,a,a,.5))d=54*r(),z=30-d/2,x.fillRect(j%32*60+z,(j/32|0)*60+z,d,d)

Nov 6 2019 10:33 PM UTC

}// 117/140

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u/DataMeta

Nice one. To take it full circle (or square) to d/15628: r=Math.random,a=r(b=r(c=r(l=255))) for(j=576;j--;x.fillStyle=R(a*l,b*l,c*l,r()/5))d=64*r(),z=30-d/2,x.fillRect(j%32*60+z,(j/32|0)*60+z,d,d)
u/joeytwiddle

Mellow: r=()=>(1+S(j**5-t++*3))/2 Darker: r=()=>S(j*j-t++*3)%1

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tomxor

remix of d/15952 by u/tomxor

function u(t) {

eval(unescape(escape`景爨眽挮睩摴栽ㄲ〬椽㡥㌻椭ⴻ砮晩汬剥捴⡒㵩╷ⱔ㵩⽷ⰱⰮ㘭娯㘴⤩景爨樽㐬娽眻樭ⴻ娭㴨⡒ⴶ〩⨪㈫⡔⼲⤪⨲⭚⩚⤪⨮㔭⠱㘫匨启猫琪㐩⨸⤫䌨㔪匨启猫䌨刯猪㌩⤫㔪匨刯猫匨娯猫启猪㌫琪㠩⤫琩⨵⥳㴱㘻`.replace(/u(..)/g,"$1%")))

Oct 18 2019 11:35 PM UTC

}// 140/140

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Ray Marching SDF Smoke

u/tomxor

Runs significantly faster in FireFox for some reason.
u/tomxor

Part of the smokeyness is obtained by exploiting artifacts in the ray marching algorithm itself, by only marching a constant and very short depth (4 steps) smooth aberations appear around the true volume (representative of the sphere tracing)
u/DataMeta

WOW!!! #smoke #realistic #compressed
u/tomxor

#raymarching