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

function u(t) {

for(w=c.width&=i=10368;X=--i%w,Y=i/w;x.fillRect(X+z*R,Y+z*T,Math.hypot(R=X/64-1-S(t),T=Y/64-.6-C(t/3))+!z/2,1))z=(w+X/3-Y/3^Y/3+X/3)%21>18

Jun 6 2023 5:58 PM UTC

}// 138/140

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#PCB #trace #bumpmap

u/tomxor

Getting on the bump train with a different method. This one displaces X and Y in proportion to distance from light source, which creates pixel gaps on one side (specular highlights), and overlapping pixels on the opposite (becoming shadows).
u/danny@hille.dk

wow thats chrisp!

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tomxor

remix of d/19550 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𩠽𚁮𛁭𚐽🡮🱭𙡦𚁮𛐶𛁍𨑴𪀮𨑢𬰨𦀭𝠴𚐾𦐭𫡼𦐭𫠾𫠫𝀩𞡭𛁣𛡷𪑤𭁨👷🐱𜠷𛁩🐸𜐹𜠻𪐭𛐻𭀿𪐾𭱼𬠥𭰿𬀦𥁛𬠽𪐫𭰫𬠥𜱝🀱𙠦𛐭𥁛𪑝𙠫𚱔𦱲𧐺𥁛𪑝🐱𞡔𦱩𧐽𘑦𚀲𝀬𜐩𚠲𚑰👔𦱩𧐬𮀮𩡩𫁬𤡥𨱴𚁘👩𙡷𛁙👩𛱷𛀱𛀱𛑰𛰳𚐬𬠽𪐪𭀪𦁞𦐻`.replace(/u../g,'')))

Dec 24 2021 5:05 PM UTC

}// 139/140

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#xmas #tree #snow

u/danny@hille.dk

Nice!
u/KilledByAPixel

awesome
u/stephanegeorget

No way - this is crazy - there is one character left: enough to cram colors and 3D in there?
u/magna

Water-repellent tree
u/Joachim

And floating! :D

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tomxor

remix of d/21339 by u/tomxor

function u(t) {

f=s=>S((d=9+Math.hypot(s*(X>>6)+X%64-32,Y%64-32))/3*(Y-256>>6))/d*16
for(c.width&=i=66048;i--;)x.fillRect(X=i&255,Y=i>>8,Z=C(f(6)+f(-6)),Z)

Jan 21 2021 8:02 PM UTC

}// 139/140

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#wikimedia #wavepanel #interference

u/tomxor

Reproduction of https://commons.wikimedia.org/wiki/File:Wave…
u/Qwitter

Awesome! looks just like wave tank pics

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tomxor

remix of d/21327 by u/indjev99

function u(t) {

for(f=_=>S((d=Math.hypot(X-74,Y-32))-t*9)/d*1e3,c.width&=i=8320;i--;x.fillStyle=R(Z=f()+f(X+=20),128-Z,192-Z))x.fillRect(X=i&127,Y=i>>7,1,1)

Jan 20 2021 10:34 PM UTC

}// 140/140

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Fake #FDTD simulation #InterferencePattern

Show more comments…
u/danny@hille.dk

Hypno owl :-)
u/tomxor

OMG I can hear it now
u/Qwitter

Awesome: Hypno wHoo? Im going to have to put some Math.hypot in me dweets
u/tomxor

You mean Math.hypnot()? :P
u/Qwitter

possibly 'Math.EffectCause()' , but who does this owl hoo like, an infamous toad ?
u/danny@hille.dk

WebGl version: http://glslsandbox.com/e#70769.0

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tomxor

remix of d/17835 by u/pavel

function u(t) {

eval(unescape(escape`𫱮𫑯𭑳𩑭𫱶𩐽𩐽🡦𚁸𛡬𪑮𩑗𪑤𭁨🐴𛀴𛁣𛡷𪑤𭁨👩𫡮𩑲𥱩𩁴𪀬𤠽𩐩𒡦🐨𦀬𦐬𭰩🐾𚁒𛡸𛑘𛑷𛰲𚐪𚠲𚰨𤠮𮐭𦐭𭰯𜠩𚠪𜠼𭰪𭰪𝠮𜠸𚰳𩐴🱷🠶𙠦𩠨𦀬𦐬𭰯🐲𚑼𩠨𦀫𭰬𦐬𭰩𯁦𚁘𛁙𚱷𛁷𚑼𩠨𦀫𭰬𦐫𭰬𭰩𞡸𛡳𭁲𫱫𩑒𩑣𭀨𦀬𦐬𭰬𭰩`.replace(/u../g,'')))

Mar 5 2020 2:17 AM UTC

}// 135/140

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#interactive #quadtree (move your mouse)

u/tomxor

Note the intersection is fuzzy since full circle-AABB takes too much code, instead it's just circle-point + current subdivision width based radius (w*w*6.28), i.e it becomes more accurate as it converges.
u/tomxor

This is why there are a bunch of divisions around it that would not exist with an exact test. Pavel's doesn't do this by cleverly choosing a geometry that only need intersect the top left of each square.
u/katkip

Nice!

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tomxor

remix of d/17412 by u/KilledByAPixel

function u(t) {

with(x)for(c.width|=j=1e3,scale(9,3);j--;j%5?arc(109,52+j/5,j>900?99:36,a=t+j/.6366,a+.5):beginPath(stroke()))setLineDash([j%900>50?0:5])

Jan 30 2020 10:44 PM UTC

}// 137/140

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tomxor

remix of d/17021 by u/tomxor

function u(t) {

for(c.width|=i=140,x.translate(960,360);i--;x.fillText((a=i+t*60|0)%57?' ╒ ___ ___  🌊':'🐪   _🚔 🌴',S(a/130)*S(a/60)*i-54,9))x.scale(q=1.03,q)

Dec 31 2019 5:48 AM UTC

}// 140/140

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Level 2 - Beach Stage

u/13thptr

nice
u/katkip

best on firefox
u/vain

OMG XD Its so cute and amazing!

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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/12595 by u/tomxor

function u(t) {

c.width=w=96
for(i=5e3;X=i%w,Y=i/w,i--;x.fillRect(X+2*Z,Y+4*Z,.5,1))Z=(.5+S(i/15+t*2)/2)*S(S(Y/8+t)+S(X/24+t)+t),Z=S((X|Y)/(4+Z))/5

Mar 2 2019 11:13 PM UTC

}// 131/140

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Fractal Ocean

u/tomxor

Or puddle depending on your frame rate :D

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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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