Dweets awesomed by u/mohd-akram

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: #ScaryMovies

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KilledByAPixel

function u(t) {

for(i=c.width|=F=540;i--;x.fillRect(w?960:965-q*z,w?F+(i*i+t*F)%F:i,w?9:q*(i%F<(i>F?F-t*9:t*9)?9:z),9))q=i%2-.5,z=413+399*C(i/172),w=i>1079

Mar 6 2020 6:19 PM UTC

}// 139/140

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Hour #Glass ⏳

u/magna

WOOW!
u/katkip

this idea tho.... brilliant
u/KilledByAPixel

#Hourglass

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Whimpers

function u(t) {

for(k=i=960;--i;x.fillRect(k+S(i*j)*6+S(m=k*j^k)*r,540+C(m)*r,s=3e5/k*S(j*9),s))j=i/k+t/4,r=1e5/i,x.fillStyle=R(i,i/3)

Mar 6 2020 4:37 PM UTC

}// 118/140

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Lava flowers

u/katkip

wow
u/PoweredByWill

Very cool. This reminds me of part of a demoscene entry called Transgression 2 by MFX.
u/KilledByAPixel

remix of d/15976

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New_Core

remix of d/17855 by u/BriSeven

function u(t) {

c.width|=c.style.filter=`blur(9px)contrast(900%)`
x.scale(80,99)
for(i=2;i--;x.fillText(~~v%10,9,9))x.fillStyle=R(0,v=t+i/2,0,S(v*6.28+5)+1)

Mar 6 2020 12:37 PM UTC

}// 140/140

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I didnt look at your code but I guess you did something like this...

u/aleamb

amazing! love it! #morphing #numbers #blur
u/BriSeven

nearly. i also modulated the blur so the complete crisp numbers would be visible and the morph a bit more metabally
u/BriSeven

i tried to modify this to add it back but i can’t get it under 150
u/sigveseb

900% can be written as just 9
u/yonatan

and the closing paren can go too

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rodrigo.siqueira

remix of d/17743 by u/rodrigo.siqueira

function u(t) {

for(c.width|=Z=0;Z<27;Z++)for(X=-3;X<=3;X+=.02)
Y=Math.exp(-X*X)*S(S(X-t*4)*3+Z/7+C(Z/4+t))-1,
x.fillRect((X+4)*260-Z*9,Z*26-Y*150,5,4)

Mar 6 2020 1:33 AM UTC

}// 135/140

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Waving surface #wavelet #d3 #wireframe

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KilledByAPixel

function u(t) {

with(x)for(r=m=>C(++h)*m,t||fillRect(0,0,i=h=2e3,h),translate(w=960,540);i-->0;clearRect((z=i%19)*i,a=r(z?89:-1),r(z?4:w),-2*a))rotate(r(h))

Mar 4 2020 6:29 PM UTC

}// 140/140

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Cracked #Glass 🔨+🖥️

u/katkip

Nice idea
u/DataMeta

Cool!

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pavel

function u(t) {

c.width|=f=(X,Y,w)=>X*X+Y*Y<=2e6*S(t/9)**2?w>9&&f(X,Y,w/=2)|f(X+w,Y,w)|f(X,Y+w,w)|f(X+w,Y+w,w):x.strokeRect(X,Y,w,w);f(x.lineWidth=4,4,1072)

Mar 4 2020 5:31 AM UTC

}// 140/140

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Quadtree

Show more comments…
u/katkip

Awesome!
u/tomxor

I love it !
u/sigveseb

Cool!
u/Xen

SEXY!
u/aleamb

love it!
u/tomxor

#Quadtree
u/Qwitter

YES!!
u/vain

Never saw this fx before. But it looks really beautiful

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New_Core

function u(t) {

for(c.width|=i=640;i--;x.stroke())x.beginPath(),x.strokeStyle=`hsl(${i},99%,50%)`,x.arc(99*S(t-i/9)+i*3,i%160*8-99,a=99**C(i/14+t)+14,a,0,7)

Mar 3 2020 6:14 PM UTC

}// 140/140

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u/katkip

looks good!
u/aleamb

amazing!

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𪐽𜠻𪐭𛐻𨱬𪑰𚁳𭁲𫱫𩐨𚐩𚑦𫱮𭀽𚀱𝀭𪐪𞐩𚰧𩑭𘠧𛁦𪑬𫁔𩑸𭀨𙱍𨑧𫡩𩡹𪑮𩰠𡱬𨑳𬰧𛀶𞐰𛐡𪐪𚁺🐵𝀰𛑃𚁴𚐪𝀸𜀩𛀵𝰰𚰡𪐪𜰰𚐬𮁛𩠽𙱦𪑬𫁓𭁹𫁥𙱝🐧𘱆𡡆𙰬𮁛𩡝👒𚀡𪑼𯁦𪑬𫀨𨑲𨰨𝰲𜀫𮠯𜠬𝐴𜀬𜠵𜀬𜀬𝰩𚐩`.replace(/u../g,'')))

Mar 2 2020 7:20 PM UTC

}// 139/140

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Magnifying #Glass 🔍

u/lionleaf

Clever!
u/katkip

good idea

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pavel

function u(t) {

for(c.width|=j=21,x.scale(5,5),x.lineJoin="round";j--;)for(i=26;i--;)x.arc(192,108,1.3**(r=j+i%2+t%2),a=(i+j)%24/3.8197+C(r)/2,a);x.stroke()

Feb 11 2020 7:29 AM UTC

}// 140/140

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Creeping

u/katkip

kind #tunnel
u/Yogeshp3

source of mathematics?
u/cantelope

source: pavel
u/pavel

I was inspired by https://twitter.com/beesandbombs/status/1221… I wanted to see if I could draw it with one stroke. Then I just started playing around. +C(r)/2 does most of the work here, if you delete it you can see the reference shape.
u/pavel

%24 is only there to avoid a bug in Safari from angle being too big on arc. /3.8197 is short for *Math.PI/12

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pavel

function u(t) {

for(i=c.width|=p=1.047,x.scale(9,9);i--;x.lineTo(47+f(C),f(S)))f=g=>60+56*g(a=~~t*p+i/300)-(i<3)*32*(g(b=2*a-t*p+p/2)-g(2*p*i+b));x.stroke()

Feb 11 2020 6:37 AM UTC

}// 140/140

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Walking around

u/pavel

One of those things that's difficult to get into 140 chars but doesn't look so impressive hah.
u/pavel

Note that this is done with one stroke. The drawing starts and ends from the point that touches the circle, which changes throughout the animation.
u/pavel

You can see it if you change i/300 to i/310

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