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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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Current theme challenge: #Food

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pythech

remix of d/8339 by u/yokljo

function u(t) {

for(x.fillRect(0,0,2e3,i=2e3);i--;x.fillRect(i*3,500+(S(t+i&64)+C(t+i*~(t/2)*11))*120,7,7))x.fillStyle=`hsl(${i},${i/6}%,${i?60:0}%)`

Jun 3 2018 2:53 PM UTC

}// 133/140

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DataMeta

remix of d/8327 by u/DataMeta

function u(t) {

for(i=128;i>0;i--){r=Math.random();m=Math.random();x.fillStyle=R(255*r,i/m,i/r,.4);x.fillRect(180+i*12,620+T(i+t)*S(t)/2,T(t/r),T(i)*56)}

Jun 1 2018 12:17 AM UTC

}// 137/140

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u/uchenna

i have been trying to implement this on my project please help me, thanks
u/DataMeta

#glitch
u/DataMeta

#colorshock

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rsninja

function u(t) {

c.width=1920
for(i=0,h=t/999;i<99;i++){
x.fillStyle=`hsla(${t*t},65%,50%,1)`
x.transform(1+h,0.1+h,-0.5,1,S(t)*9,C(t))
x.fillRect(i,i,i,i)}

May 30 2018 6:31 PM UTC

}// 140/140

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u/uchenna

i have been trying to implement this on my project please help me, thanks

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sukkamehu

remix of d/7442 by u/BalintCsala

function u(t) {

c.width=innerWidth;c.onmousemove=e=>B.push([e.x-X,e.y-Y,X=e.x,Y=e.y])
B.map(i=>x.fillText("o",i[2]+=i[0],i[3]+=(i[1]+=0.1)))};{B=[X=Y=0]

May 28 2018 7:04 PM UTC

}// 136/140

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Xen

remix of d/8237 by u/sawaxon

function u(t) {

for(a=j=99;j--;x.fillStyle=`hsl(${j-t*a},99%,50%)`)for(i=9;i--;x.rotate(t^a)){x.fillRect(Z=j*24,X=S(j/5+t*9)*a-a,a,a),x.strokeRect(Z,X,a,a)}

May 28 2018 12:54 PM UTC

}// 140/140

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johnbruin

remix of d/8156 by u/johnbruin

function u(t) {

c.width=w=200
x.font='1.1cm a',x.fillText("DWITTER",0,w)
for(y=60;y--;)
x.drawImage(c,0,160+y+4*S(t*5+y/6),w,1,7+8*S(t+5*C(t+y/40)),y*2,w,2)

May 23 2018 4:24 PM UTC

}// 140/140

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u/lionleaf

#text

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Tesseract

remix of d/8200 by u/Tesseract

function u(t) {

for(i=999;i--;)r=Math.random()*8&7,
x.fillRect(T=243*(r*.4|0)+T/3|0,C=243/2*(r%3*5&6)+C/3|0,1,1)

May 22 2018 9:10 PM UTC

}// 96/140

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u/joeytwiddle

Nice technique to skip the middle :)
u/zanella

Fractals are awesome!
u/S.T.L.K.R.

DAMN IT MAN :O
u/fujimotos

#slow_render #fractal

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nix

function u(t) {

for(w=i=c.width=1920;i>=0;i-=3){x.fillRect(i/2*S(t+i)+w/2,t+((i/S(i)))*S(i),50*(1+S(i)),w/120*(1+S(i))
)
x.fillStyle=R(i/4,i/4,i/4)}

May 22 2018 6:04 PM UTC

}// 132/140

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Xen

function u(t) {

x.fill(x.arc(t,t,c.width=t,0,7))

May 21 2018 4:41 PM UTC

}// 32/140

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u/jick

Wow, this is really nice.

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prplz

remix of d/8145 by u/firegodjr

function u(t) {

x.font='3em x'
r=Math.random
for(i=166;i--;x.fillText('◢◣◤◥'[r()*4|0],y*32,z*32))y=r()*66,z=r()*33,x.fillStyle=y+t*2&8^z+t&8?'#fff':'#000'

May 20 2018 11:15 AM UTC

}// 138/140

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Try y<<5,z<<5 instead of y*32,z*32