Dweets awesomed by u/astronaut

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: #ScaryMovies

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primo

function u(t) {

eval(unescape(escape`𡀽𫡥𭰠𢑭𨑧𩑄𨑴𨐨𨰮𭱩𩁴𪀽𭰽𝐶𞀬𪠽𪀽𝰴𝀩𒡦𫱲𚁡👄𛡤𨑴𨐻𪀫𪠭𛐻𚑦𫱲𚁩👷𛰲𞱩𞱡𦱯🐭𛑩𛑷𛰲𛑾𚀱𝠵𛑪𛰴𛐳𜠪𤰨𭐽𮠯𜐶𛑴𚠸𚐩𚡷🀼𜡼𜱝👡𦱯𛐸𚡩𧐽𜐲𞀭𝐷𚡓𚁵𚐭𪠪𜰸𛱺𚡃𚁵𚐩𮠽𚁩𚡩𛰴𚱪𚡪𛰹𚐪𚠮𝐊𮀮𬁵𭁉𫑡𩱥𡁡𭁡𚁄𛀰𛀰𚐠`.replace(/uD./g,'')))

Oct 3 2021 7:46 PM UTC

}// 140/140

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#sine

Show more comments…
u/pavel

Damn thats smooth
u/primo

I spent a while trying to balance performance and quality, ultimately deciding to err on the side of quality, because I thought it would age better that way ;)
u/rep_movsd

Nice
u/primo

Performance boost: eval(unescape(escape𮀮𬁵𭁉𫑡𩱥𡁡𭁡𚁄👴🱄𞡮𩑷𘁉𫑡𩱥𡁡𭁡𚁣𛡷𪑤𭁨👷🐵𝠸𛁷𚐬𜀬𜀩𒡡👄𛡤𨑴𨐊𩡯𬠨𪠽𪀽𝰴𜀻𪀫𪠭𛐻𚑦𫱲𚁩👷𛰲𞱩𞱡𦱯🐭𛑩𚠴𚰨𜰳𜰭𪠯𜠭𝠴𚡓𚁵👺𛰳𜠭𭀪𞀩𯀱𚐪𭰪𜠫𜱝👡𦱯𛐸𚡩𧐽𜐲𞀭𝐷𚡓𚁵𚐭𪠪𞀱𛱺𚡃𚁵𚐩𮠽𚁩𚡩𚱪𚡪𛰲𚐪𚠮𝐠.replace(/uD./g,'')))
u/primo

Uncompressed: x.putImageData(D=t?D:new ImageData(c.width=w=568,w),0,0) a=D.data for(j=h=740;h+j--;)for(i=w/2;i;a[o=--i*4+(333-j/2-64*S(u=z/32-t*8)|1)*w*2+3]=a[o-8*i]=128-57*S(u)-j*81/z*C(u))z=(i*i+j*j/2)**.5
u/primo

Place newlines were appropriate >_<;;

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pavel

remix of d/19550 by u/tomxor

function u(t) {

for(c.width=w=127,i=9087;i--;t?p&u[r=i+w+r%3]<1&&--u[i]&++u[r]:u[i]=r)x.fillRect(X=i&w,Y=i>>7,.5,p=u[i]),v=Y-36,r=(X/3-21)**4>v*v?2:i*t|Y<30

Sep 10 2021 2:03 AM UTC

}// 140/140

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Overfilled #hourglass

u/pavel

#time
u/rep_movsd

Amazing!
u/tomxor

Excellent! makes me wonder what else we can do with this stuff...

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taupelink

remix of d/23666 by u/taupelink

function u(t) {

for(i=k=255;--i;x.fillRect(k*--X,630-i*Y,i*(q*q%t<t**-t),-q*Y*t))f=i*t,X=f*f%9,Y=S(X*f)*X,x.fillStyle=R(q=i*Y,q/=T(X/6)<Y?.9:-1.5,q^k,k/q/q)

Aug 29 2021 8:20 PM UTC

}// 140/140

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d/23688

u/aleamb

#impressionism

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rodrigo.siqueira

remix of d/23673 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
A=a=b=.8/t;s=920
for(i=1e4;--i;b=A,A=a)x.fillRect(940+a*s,540+b*s,.8,t<99),a=Math.abs(a/2+1/b/2e3)*(A/2+C(a-a/4))-b

Aug 29 2021 8:19 PM UTC

}// 140/140

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Glial astrocyte convergence

u/magna

Crazy!

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TGY

remix of d/23667 by u/Joachim

function u(t) {

c.width|=t?0:d=p=[]
Y=540
d++%9<6&&p.push({Y,s:1,X:Y+Y*S(t)**2})
for(i of p)with(i)x.fillStyle=R(s,a=s/20,s),x.fillRect(X-s/2,Y+=a,s+=a,a+9)

Aug 29 2021 1:53 PM UTC

}// 140/140

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rodrigo.siqueira

remix of d/23669 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
A=a=b=.8/t;s=400
for(i=1e4;--i;b=A,A=a)x.fillRect(900+a*s,480+b*s,1,t<5),a=.4-b+Math.abs(a/2+1/b/2e3)*(A/3-.5)

Aug 29 2021 12:23 AM UTC

}// 134/140

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Axon formation around a multinucleate alien cell

u/sigveseb

Nice!
u/Toby

Fab! Do you have a source reference for the kind of iterated formula you're using?
u/rodrigo.siqueira

You can see the original equation by changing the to "s=70" and the end to: a=1-b+Math.abs(a)
u/rodrigo.siqueira

It's based on the "Gingerbreadman Map" #gingerbreadman https://www.dwitter.net/d/14641 I don't understand the details but I know that "Even the simplest mathematical expressions, when interpreted as dynamical systems, yield fractals."
u/Toby

Ahhhh yes of course! I remember Gingerbreadman now! Thank you Rodrigo!

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Joachim

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟝴󟼰󞭤󟝰󟝛󧜊󩌫󚼊󩌥󞜼󝬦󙭰󛭰󭝳󪌨󮽸󞬹󝬰󚽓󚍴󚜪󜬰󜌬󮜺󝜴󜌬󬼺󜜬󬬺󤼨󭌪󞜩󯜩󒭦󫽲󚍩󘍯󩬠󬌩󮽳󟝩󛭳󒭸󛭦󪝬󫍒󩝣󭌨󪜮󮌭󬼯󜬬󪜮󮜫󟝳󛼵󜌬󪜮󬼪󟜱󛬰󝜬󬼯󝌰󚜊󮌮󩭩󫍬󤭥󨽴󚍩󛭸󚽳󛽩󛭲󛍩󛭹󛝳󛍳󛼹󛍳󚜊󮌮󩭩󫍬󤭥󨽴󚌰󛌵󝌰󛍳󛌲󚝽`.replace(/u../g,'')))

Aug 28 2021 1:39 PM UTC

}// 140/140

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old, #infinite #road

u/Joachim

#perspective
u/rodrigo.siqueira

Almost a car #game. Better than Atari's Enduro.
u/vain

just wow!

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mxfh

remix of d/23558 by u/mxfh

function u(t) {

I=new ImageData(w=2048,w)
b=new Int32Array(I.data.buffer)
for(i=4e6;i--;X=i%w-960,b[i]=X*X+Y*Y+S(t)/Y*i<<14)Y=i/w-540
x.putImageData(I,0,0)

Aug 17 2021 3:33 PM UTC

}// 139/140

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Event Horizon Camera

u/mxfh

#time

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sigveseb

function u(t) {

eval(unescape(escape`圽琥㌼⸲㼶㐫匨䌨琪㤩⤪㤺圻景爨椽㈵㘻椭ⴻ砮晩汬剥捴⡩⨸ⰰⰸⰸ⤩砮晩汬却祬攽椼⠱㈸ⵗⵔ⡍㵴⼲┱⸵⤩籼椾吨䴩⬶㐫圿∣㑡攢㩠桳氨〬〥Ⱔ答⡴⨳⤫⡍㸮〵⤪㈵⨨ㄫ⡩㸶㐫圯㌩⥽┩总砮摲慷䥭慧攨挬〬㐩`.replace(/u(..)/g,"$1%")))

Jan 13 2020 12:46 AM UTC

}// 140/140

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Infinite #castle tower

u/sigveseb

#compressed
u/KilledByAPixel

👍
u/sigveseb

I really wanted to add some windows as well, but couldn't fit it in
u/denzen

I love it!
u/astronaut

Impressive. Like almost all your posts.

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soxface

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 */

Feb 23 2017 10:28 PM UTC

}// 122/140

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dwitter.net | astronaut (667)