Top dweets by u/tomxor

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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tomxor

remix of d/15316 by u/taupelink

function u(t) {

for(a=b=0,i=1e4*(t<8);i--;x.fillRect(a*640-160,b*640+240,1,.05)) 
r=0|4*Math.random(),
a+=.3*(r-a+b*S(a*3.14)),
b+=.3*(1-a*b+C(a*3.14))

Aug 8 2019 10:10 PM UTC

}// 135/140

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Chaos Photographer, Pic 1

u/DataMeta

#organic
u/magna

#waitforit
u/iverjo

#art
u/yonatan

animated version: https://twitter.com/zozuar/status/1218899130…

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tomxor

remix of d/27290 by u/vgel

function u(t) {

eval(unescape(escape`𩡯𬠨𢀽𣑡𭁨𛡨𮑰𫱴𛁣𛡷𪑤𭁨👰👷🐱𜠸𞱰🀱𩐴𞱒🀱𜠦𢀨𢀨𠰨𭀩𚡘𛑓𚁴𚐪𦠬𦐩𛐮𜰬𠰨𭀩𚡚𚱓𚁴𚐪𦀩🠮𜐵🱒𛰽𛠹𞡸𛡦𪑬𫁒𩑣𭀨𬀥𭰬𬀫𚰯𭰬𤠯𞀬𤠽𜐩𚑘👰𛰶𝀥𜠭𜐬𦐽𬀯𞁥𜰭𛠶𛁚👒𛰸𛐮𝐻`.replace(/u../g,'')))

Apr 1 2023 2:06 PM UTC

}// 120/140

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Torus #sdf 153 Bytes

u/tomxor

13 chars over, this has been squeezed pretty hard, I don't think it's going to fit into 140.
u/magna

donut underestimate yourself
u/tomxor

😂 🥁

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tomxor

remix of d/24801 by u/rep_movsd

function u(t) {

for(c.style.filter='invert(1',t?i=5e4>>t:G=X=Y=.8;i--;x.fillRect(960+X*19,540+Y*29,.2,.2))Z=X,X=G+Y*1.01-Y**3/7e3,G=4*X*X/(1+X*X)-X*.8,Y=G-Z

Jan 20 2022 11:56 PM UTC

}// 140/140

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Smolr Fluffier Gumowski-Mira Mythic Bird

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tomxor

remix of d/24055 by u/Joachim

function u(t) {

with(x)for(i=0;i<9;stroke())lineTo(a=8*i,b=50+5*C(t-i)),lineTo(a-5*S(t-i),b+9),lineTo(a,b),fillRect(i&&(a-t)%21*6,64,i||(c.width=128),1-i++)

Oct 10 2021 12:47 PM UTC

}// 140/140

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Mini Stick Millipede

u/danny@hille.dk

Great golf
u/Joachim

clever!

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tomxor

remix of d/23544 by u/pavel

function u(t) {

for(a=Math.abs,c.width&=i=4352;X=1-(T+i/32)%2,Y=--i/2e3;x.fillRect(X*r+64*T,Y*r+96-64*a(S(t)),T=a(2-t%4)+1,(i^i/64)/8&1))r=64/(--Y*Y+X*X+1)

Aug 13 2021 12:57 AM UTC

}// 139/140

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Smoother #Amiga #Ball

Show more comments…
u/tomxor

..But less authentic. Remaps the pixel positions rather than texture, which gives "free" antialiasing, with spare space to correct the spin.
u/pavel

Oh yeah, nice. This is definitely a better way of doing it. The other mapping has an incorrect center that I have to waste characters to correct.
u/pavel

-2 char using S(t%3.14) to bounce and inlining the single Math.abs call
u/danny@hille.dk

What a clever trick, using modulus pi of t, to only get the positive part of the sinus curve
u/danny@hille.dk

3.2 works fine, while 3 and 3.1 looks wrong
u/danny@hille.dk

test code: c.width|=0,x.fillRect(o=860,o-S(t*4%3.2)*o,200,200)

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tomxor

remix of d/22883 by u/tomxor

function u(t) {

eval(unescape(escape`󭌿󨼮󭽩󩍴󪌽󭼽󝬴󞭘󟝙󟝚󟝒󟜵󞽦󫽲󚍡󟝓󚍒󚜬󨬽󠼨󤬩󛍰󟜳󩜳󞽰󛜭󞽘󛜽󪼪󨜬󦬭󟝫󚭢󛍙󚼽󪼪󠬬󤬭󟝫󚭁󛍸󛭦󪝬󫍒󩝣󭌨󬌥󭼬󬌯󭼬󜜬󜬭󝌯󩌩󚝦󫽲󚍁󟝰󙝷󛼳󜬭󜜬󠬽󬌯󜝥󜼬󩌽󜜻󚍘󚽤󚭁󚭢󛝤󚭡󧭙󚽤󚭂󧭚󛝤󚭁󚭡󛝤󚭢󚜥󜜵󟬱󞽤󚼽󛬱󚝫󟜨󜜭󜼯󩌯󩌩󛼲󩜴`.replace(/u../g,'')))

May 31 2021 3:37 PM UTC

}// 140/140

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Leisurely Descending a #minecraft cave v2

u/tomxor

Less of a maniac miner... now that dwitter perf is better.
u/tomxor

#raymarching

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tomxor

remix of d/21610 by u/rodrigo.siqueira

function u(t) {

for(c.width&=m=i=8320;i--;x.fillRect(X=i&127,Y=i>>7,1,f(X/m+.01,Y/m)))f=(x,y,n=42)=>--n&&y/(1.1+S(x+2*S(n+t)))<5?f(x*x-y*y-1.5,2*x*y,n):n/16

Feb 8 2021 3:29 AM UTC

}// 140/140

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#wavey #plant #fractal

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tomxor

remix of d/20584 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𜐹𜠬𤠽𝀸𛁩🐸𜀶𝀻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁓𚰹𝠬𥀫𝐴𛁃𚁡👍𨑴𪀮𨑴𨑮𜠨𤰽𪐥𞐷𛑒𛁔👩𛰹𝰭𤠬𬠽𚁓𚡓𚱔𚡔𚐪𚠮𝐩𚠹𚐪𜠰𛑲𙠴𝀦𙡲🠳𝠿𬠼𝀲🱔𛱒𞡓𛱒𞠱𛁲🠳𝠿𬠼𤠺𮠨𜰩𛰵𚐩𮠽𫠽🡮𛐭𙠦𠰨𨐯𜰫𬠫𭀪𞐩𚡃𚁔𛰵𚱺𚁮𚐪𜠩𛑲𛰶`.replace(/u../g,'')))

Nov 14 2020 1:20 PM UTC

}// 139/140

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#stargate connected to a world with a #blackhole

u/tomxor

From "A Matter of Time" episode, requested from u/nbevans on HN.

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tomxor

function u(t) {

for(c.width=i=256;i-=1/4;x.fillRect(128+X*16+Y*8,96+X*4-Y*8,4,-Z*3))X=i%8-4,Y=i/32-4,Z=S(t)*9+(Y*2^X*2),x.fillStyle=R(r=X*Y*Z*2,127-r,255+r)

May 9 2020 5:14 PM UTC

}// 140/140

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Pretty XOR for no apparent reason...

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tomxor

remix of d/18338 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`𭀿𪰽𭀪𚠸𞡷👣𛡷𪑤𭁨🐹𞐻𩠽𚁘𛁙𛁮👷𚐽🡘🁮🱦𚁘𚡘𛑙𚡙𛐮𞀬𜠪𦀪𦐫𛠲𛁮𚰱𚐺𨁨𬱬𚀤𮱮𚠸𯐠𞐹𙐤𮱓𚁮𛰶𚡴𚠪𛠵𚐪𭱽𙑠𞱦𫱲𚁩🐶𩐳𞱩𛐭𞱸𛡦𪑬𫁓𭁹𫁥👦𚀨𦀭𝐰𚱫𚐯𪰭𜠭𜰶𜠱𞀵𩐭𞀬𜐭𚁙𛐲𞀫𪰩𛱫𚐩𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙👩𛱷𛀱𛀮𜠩`.replace(/u../g,'')))

Apr 20 2020 12:53 AM UTC

}// 140/140

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Color #zoom #julia #fractal using "X<i"

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u/tomxor

For zoom without slowing down use k=t**t, but you will need very precise coordinates. Here are some other coords I found: f((X-50+k)/k+5100096e-9,1-(Y-28+k)/k), f((X-50+k)/k-2,1-(Y-28+k)/k+201113e-7)
u/tomxor

Oops, hitting subpixel rendering differences again... intended for firefox, chrome looks a bit too mushy, change fill pixel to .3 for chrome.
u/joeytwiddle

Pretty nice! 😻
u/13thptr

amazing
u/tomxor

Due to subpixel rendering differences, for Chrome: see d/18346
u/Joachim

Wow! #underrated #colourful How did you make it infinite? Whenever I’ve tried making a Mandelbrot it always pixelates after the first few seconds of zoom ing in.

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