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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.

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

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ciaccodavide

remix of d/21217 by u/tomxor

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐽𙱦𪑬𭁥𬠺𪑮𭡥𬡴𚀧𞱦𫱲𚁬𩑴𘁺𛁁𛁂𛁮𛁘𛁙𛁩🐱𝠻𪐻𦀫👁𛁙𚰽𠠩𚀴𜀫𦀯𝀸𧠱𝠫𦐯𝀸𚐥𜐵🠱🱸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𫠯𚰫𮠪𚠮𝐬𜐯𞀩𞠨𮠽𜐬𬠽𚁮𚰷𚐪𚡩𚡴𛁁🐲𚡓𚁲𚐬𠠽𜠪𠰨𬠩𛀭𛑮𚑼𯀨𫠽𞀬𦀽𞐱𜀫𠰨𭀩𚠹𞐬𦐽𝠵𝀫𤰨𭀩𚠹𞐬𛐭𪐩`.replace(/u../g,'')))

Jan 12 2021 1:02 PM UTC

}// 140/140

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Circle of Light

u/tomxor

:D I tried a similar thing at one point. Making the source this wide has some interesting affects on the shadows in this scene.
u/ciaccodavide

yeah! It's fun playing with the light source! And raymarching is awesome, I still need to look at your code to understand it better "^_^
u/tomxor

Give me a shout on discord if you've any questions. One part I'm still trying to understand is the probability distrubution of the reflections which I accidentally got non-uniform (which is good for diffuse, ideally want it lambertian) due to how no correction is made upon intersection.

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rodrigo.siqueira

remix of d/20815 by u/rodrigo.siqueira

function u(t) {

for(i=3e3,f=g=>i*C(i*i)*g(i+t*(t>4));i--;x.fillRect(960+f(S)*C(t/3),540+f(C)*C(t/3),1,.5))x.fillStyle=R(i,i/9),c.style='filter:invert('

Nov 28 2020 5:01 PM UTC

}// 135/140

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Starry night swirl #spiral

u/jellyedwards

Wow that's beautiful! #waitforit
u/ElderLord7777

how do I see the code?

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tomxor

remix of d/20689 by u/yonatan

function u(t) {

for(c.width=64,i=2e4;Z=--i>>9;T=k^64?T+S(Z+C*k/9+9/Z*t*k)/k:x.fillRect(C=i/8&63,T*9-T*Z/3,1,l=Z*32-Z*Z,x.fillStyle=R(l,l+Z,l/.8))|3)k=1<<i%8

Nov 19 2020 11:12 PM UTC

}// 140/140

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One for loop to rule them all... with a moderate chance of rain

Show more comments…
u/tomxor

This was a tough golf! thanks for the challenge and awesome dweet yonatan :)
u/DataMeta

I like this golfed rendition! :]
u/yonatan

i think i like this better than the original :)
u/yonatan

what's the deal with the k^64 tho? seems like it'd spend 64 iterations building the fbm in T and then 64 more doing fillRects??
u/yonatan

k&63 I'd understand...
u/yonatan

oh right, k isn't the loop counter
u/yonatan

-1 char with i&7: for(c.width=64,i=2e4;Z=--i>>9;T=i&7?T+S(Z+C*k/9+9/Z*t*k)/k:x.fillRect(C=i/8&63,T*9-T*Z/3,1,l=Z*32-Z*Z,x.fillStyle=R(l,l+Z,l/.8))|3)k=1<<i%8
u/danny@hille.dk

Use the saved char to boost performance with i=15e3
u/danny@hille.dk

This is a fabulous golf👍
u/danny@hille.dk

excellent work u/tomxor
u/tomxor

Thanks Danny :)

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pavel

remix of d/15161 by u/KilledByAPixel

function u(t) {

for(c.width|=j=9;j--;x.fill())for(x.beginPath(i=6);i--;x.arc(960+r*C(b=.785*(2*j-o)-t),540+r*S(b),120,a=i/.96-o*2*t,a))o=j>4,r=o?223:j&&315

Nov 10 2020 11:11 PM UTC

}// 139/140

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#uncompressed #symmetry

u/Xen

nice!
u/donbright

how.....

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solendil

function u(t) {

d=(V,D)=>x.fillRect(X,Y,X+Y+D&8,1,x.fillStyle=['#D23','#24A','#000','#FF0'][0x66ba6545>>(V>>5&15)*2&3])
for(X=2e3;X--;d(X,0))d(Y=frame,4)

Oct 23 2020 9:57 AM UTC

}// 137/140

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Four colours tartan uncompressed and full-res ! Thx Pavel !

u/danny@hille.dk

nicely done sir 🧐
u/pavel

Beautiful!
u/Xen

love it!
u/pavel

I shaved off 12 more chars for(i=4e3;X=--i>>1;x.fillRect(X,Y,1,X+Y+8*i&8))Y=60*t,x.fillStyle=['#D23','#24A',R(),'#FF0'][0x66ba6545>>((i%2?Y:X)/16&30)&3]
u/erikig

Reminds me of the fact that the earliest practical computers were used for weaving. e

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KilledByAPixel

function u(t) {

for(b=i=800;i--;x.fillRect(b+S(i)*W+(a?59:t*99),Y*.7+650,9,9))Y=b*t-b,W=(a=Y>-549)?(3e5-Y*Y)**.3*14:39,x.fillStyle=R(v=S(i*19)*99+289*a,v/3)

Oct 2 2020 3:54 AM UTC

}// 140/140

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🎃 #pumpkin

u/sigveseb

looks tasty

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KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𥰽𨰮𭱩𩁴𪁼👆👩🐵𜀰𞱩𛐭𞱸𛡳𭁲𫱫𩐨𚐩𮀮𬱣𨑬𩐨𮠽𜐮𜀰𜠬𮠩𛁙🐨𤰨𪐩𚡗𚱴𚡆𚐥𜑥𜰬𮀮𨡥𩱩𫡐𨑴𪀨𬐽𦐾𡠩𛁸𛡬𪑮𩑗𪑤𭁨🐲𛐲𚡱𚠨𦐭𡠩𛱆𛁸𛡥𫁬𪑰𬱥𚁩𚡩𙑗𛐡𬐪𚁆𛑙𚐯𜠬𛠮𛡱🱛𡠬𨐽𚁙𛑆𚐯𝰬𨐯𝐬𜁝𞡛𦐭𞐬𜀬𝐬𝡝𛀰𛀷𚐻`.replace(/u../g,'')))

Sep 28 2020 8:17 PM UTC

}// 138/140

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Rain Puddles ☔ #storm

u/Xen

love it!

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rep_movsd

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑻𨐽𝠵𝐳𝰬𨠽𜐵𜀬𮠽𬐽🡦𪑬𫁓𭁹𫁥👱𒡺𨀣𩐷𝡠𒡸𛡦👦𪑬𫁒𩑣𭀊𩠨𪐽𜐬𜀬𭰽𜡥𜰬𪀽𭰩𒡺𨀣𜀰𜀱𨀊𭱨𪑬𩐨𚰫𪐼𝠩𩡯𬠨𦐽𤱛𪑝🰿𨠬𢠽𠱛𪑝🰿𪐬𦀽𜐻𚰫𦀼𭰻𦁞𪑼𯀨𤱛𪑝👙𛁃𦱩𧐽𢠩𛁙𚰽𞀪𢠯𨐭𝀬𢠽𢠪𨠥𨐩𩠨𦀬𦐫𪐪𨠬𝠬𪀩𯐻`.replace(/u../g,'')))

Aug 29 2020 10:58 PM UTC

}// 138/140

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Dusky mountains

u/rep_movsd

#landscape #scroller #parallax

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jellyedwards

function u(t) {

c.width=200
for(i=40;i--;)
x.fillText(i%2?`🐦 @Celebrity${String.fromCharCode(65+i)}`:"Send BTC h̲e̲r̲e̲ & get 2x back!",20,(i+t*t/9)*20%800)

Aug 1 2020 8:17 AM UTC

}// 140/140

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#crypto twitter hack

u/katkip

!
u/Xen

lol

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tomxor

remix of d/19543 by u/KilledByAPixel

function u(t) {

for(c.width=w=127,i=8e3;i--;t?p&&p<8&T[r=t&8?i-w-r%3:i+w+r%3]<7&&--T[i]&++T[r]:T[i]=r%9)
p=T[i],x.fillRect(X=i&w,Y=i>>7,1,p/9),r=i*t+Y/3&X/3

Jul 29 2020 12:16 AM UTC

}// 140/140

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#Serpinski #Hourglass

u/KilledByAPixel

👍
u/magna

Damn!
u/katkip

wow