Dweets awesomed by u/ellisk1

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: #Opposites

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ellisk1

remix of d/10896 by u/ellisk1

function u(t) {

with(x)for(j=1e3;j--;fill(arc(2e3*C(a+t/j*99),1e3*S(a/2+t),j*(C(j+t)+2)/9,0,7)))fillStyle=`hsl(${a=j*j} 69%30%`,beginPath(globalAlpha=.01)

Nov 9 2018 3:19 AM UTC

}// 138/140

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u/anotherkitten

aurora borealis? at this time of day?
u/DataMeta

Smooth

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pavel

remix of d/9174 by u/f8f82804

function u(t) {

with(x)for(N=i=300;A=S(a=i--/99);beginPath(fillStyle=`hsl(${i*N} 90% ${c**4}%`))c=A*S(b=t+i)+2,fill(arc(N*c,N*(A*C(b)/2-C(a)+2),70*A+9,0,7))

Nov 8 2018 11:00 PM UTC

}// 140/140

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u/katkip

I like the fact that it is so fast
u/iverjo

Nice! This reminds me of the spinning beachball of death (on Mac OS X)
u/aleamb

#colors #d3 #sphere
u/pavel

#uncompressed

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BalintCsala

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵩㴹㭩ⴭ㭸⹴牡湳景牭⡫㴮㘲⩃⡡㵓⡴⤪ㄮ㔷⤬猽⸶㈪匨愩Ⱝ猬欬眬眩⥸⹲散琨ㄬㄬ砮汩湥坩摴栽眽㌰〬眩ⱸ⹱畡摲慴楣䍵牶敔漨⡺㴱㔰⤫匨琩⩺ⱺⵓ⡴⤪稬眬眩㭸⹳瑲潫攨⤻`.replace(/u(..)/g,"$1%")))

Nov 8 2018 7:58 PM UTC

}// 131/140

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Fibonacci spiral

u/katkip

Owwww woottt thats awesome
u/rodrigo.siqueira

SOURCE CODE: for(c.width|=i=9;i--;x.transform(k=.62*C(a=S(t)*1.57),s=.62*S(a),-s,k,w,w))x.rect(1,1,x.lineWidth=w=300,w),x.quadraticCurveTo((z=150)+S(t)*z,z-S(t)*z,w,w);x.stroke();
u/rodrigo.siqueira

Animated Golden Rectangle #Fibonacci Sequence
u/vain

very cool golden ratio / rectangle fx. (never seen before like this, great!)

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yonatan

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵩㴵ㄲ㭩ⴭ㭸⹦楬汒散琨㤶〫瀮砪瀮眬㔴〫瀮礪瀮眬瀮眬瀮眩⥰㵮敷⁄位䵡瑲楸⡛⸮⸧㌰〰〳〰〰㌵〰〰❝⤮牯瑡瑥䅸楳䅮杬攨琬琬〬琪㤹⤮瑲慮獦潲浐潩湴⡮敷⁄位偯楮琨椾㸶☷Ⱪ㸾㌦㜬椦㜩⤻`.replace(/u(..)/g,"$1%")))

Nov 8 2018 10:26 AM UTC

}// 140/140

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for(c.width|=i=512;i--;x.fillRect(960+p.x*p.w,540+p.y*p.w,p.w,p.w))p=new DOMMatrix([...'3000030000350000']).rotateAxisAngle(t,t,0,t*99).transformPoint(new DOMPoint(i>>6&7,i>>3&7,i&7));

u/katkip

This is nice
u/iverjo

Cool!
u/katkip

#transpose

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ellisk1

function u(t) {

for(j=200;j--;x.fill())x.lineWidth=w=15*(C(j+t)+2),x.beginPath(x.fillStyle='#fff'),x.arc(2e3*C(j*j+t/9),1e3*S(j**3+t/7),w*5,0,7),x.stroke()

Nov 7 2018 10:14 PM UTC

}// 139/140

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Soap Bubbles

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Xen

remix of d/10887 by u/katkip

function u(t) {

c.style.background=R(x.shadowBlur=(x.lineWidth=9)*9),x.font='47em"',x.shadowColor=`hsl(${t*99} 90%50%)`,x.strokeText(t,T(t**t),750+T(t*t)*9)

Nov 7 2018 5:02 PM UTC

}// 140/140

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yonatan

remix of d/10850 by u/yonatan

function u(t) {

for(c.width=i=w=200,x.font='9em"',x.strokeText(u,-t*w,310);i--;x.drawImage(c,0,w,w,w,i,i,s=w-i*2,s))x.filter='invert('+i/99+1

Nov 7 2018 3:41 PM UTC

}// 125/140

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just some #text fx

u/sharpaxe

#lag welp
u/joeytwiddle

These run ok on Firefox, but terribly on Chrome. #heavy
u/joeytwiddle

But another epic #quine effect anyway! #perspective
u/prplz

weird, it runs better on chrome than firefox for me
u/yonatan

for me too

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joeytwiddle

remix of d/8288 by u/joeytwiddle

function u(t) {

for(c.width|=k=512;k--;x.fillRect(960-W-12*j*C(a=t+i*17),960-j*(p=i+4*S(a)),2*W,p))i=k>>5,j=k%32,x.fillStyle='#fc74',W=99*S(j/10)

Nov 7 2018 5:25 AM UTC

}// 129/140

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An orange flower for Diwali

u/joeytwiddle

#flower #diwali https://en.wikipedia.org/wiki/Diwali
u/aleamb

coool

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pavel

remix of d/10875 by u/pavel

function u(t) {

x.rotate(!t*Math.PI/4);for(i=24;i--;)for(j=28;j--;x.fillRect(i*99+d-250,j*99-2e3+d,99,99))x.fillStyle=R(a=(i+j)%2*256,a,a),d=T(i*j/99+t/9-1)

Nov 7 2018 1:08 AM UTC

}// 140/140

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Rain

u/katkip

What rain lol

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yonatan

function u(t) {

eval(unescape(escape`景爨椽ㄲ〰㭩ⴭ㭸⹣汥慲剥捴⡺ⱺⰸⰸ⤩樽椾㸱ⱸ孳㴧獥瑔牡湳景牭❝⠱㘬〬〬㠬堽樥ㄶ⨱㈸⬨樦ㄶ㼰㨶㐩ⱙ㴱ㄳ㈭⡩☭㌲⤫䌨横⨳⭴⨳⤪⨴⨹㤪匨琩⨪㐩ⱸ⹦楬汒散琨稽ⴴⱺⰸⰱ攳⤬硛獝⠸ⰴⰭ㠬㐬堬夭㌲⤻`.replace(/u(..)/g,"$1%")))

Nov 6 2018 9:55 PM UTC

}// 140/140

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for(i=1200;i--;x.clearRect(z,z,8,8))j=i>>1,x[s='setTransform'](16,0,0,8,X=j%16*128+(j&16?0:64),Y=1132-(i&-32)+C(j**3+t*3)**4*99*S(t)**4),x.fillRect(z=-4,z,8,1e3),x[s](8,4,-8,4,X,Y-32);

u/yonatan

I think there was something like this by #beesandbombs (but with perspective, and maybe triangles?)
u/katkip

nice one\
u/twitter

for(h=i=1200;i--;x.clearRect(z,z,8,8))j=i>>1,x[s='setTransform'](16,0,0,8,X=j%16*128+(j&16?0:64),Y=h-(i&-32)+C(j**3+t*3)*99*S(t)**4),x.fillRect(z=-4,z,8,h),x[s](8,4,-8,4,X,Y-32) - 177

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