Dweets awesomed by u/firegodjr

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: #Opposites

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firegodjr

remix of d/10709 by u/New_Core

function u(t) {

s=c.style;s.backgroundBlendMode='lighten';for(b=[i=9];i--;s.background=b)b[i]=`repeating-radial-gradient(${S(t+i)+3}%${i}%,#fff,#011 599%)`

Oct 29 2018 4:15 PM UTC

}// 139/140

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yonatan

remix of d/10737 by u/yonatan

function u(t) {

for(i=c.width=99;i--;)for(j=58;j--;x.fillRect(i,j,1,1))k=(50-i)/(z=j-27),x.fillStyle=R(q=z>0?S(j*j+k-t*7)*C(j**3-k*3+t)*z/2+60-j:j+9,q*=4,q)

Oct 29 2018 1:55 PM UTC

}// 140/140

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u/lionleaf

Wow! #sea #water #waves #landscape
u/jylikangas

One of my favorites!
u/robbyg

Fantastic mood. Well done!
u/aleamb

Amazing! Reminds me of the Solaris ocean

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tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i)
for(t+=240;i--;c=t/3*(i%t<t/8))x.clearRect(960+c*S(R=i**.7)+t*C(T),540+c*C(R)+t*S(T=i**.5)*C(!c*i),s=8*S(i*160-t),s)

Oct 28 2018 5:35 PM UTC

}// 140/140

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#space #star #sun

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u/katkip

awesome
u/tomxor

It looks a bit more toasty if you multiply t*2 in i*160-t, just couldn't figure out how to fit it.
u/f8f82804

almost looks like a #virus
u/iverjo

#solar #flare
u/Cloud

#sun
u/erin

virus aged badly....
u/vain

has corona reached dwitter? Great procedural generated gfx

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yonatan

remix of d/10705 by u/yonatan

function u(t) {

eval(unescape(escape`瑼簨挮睩摴栽㔶㠩㭣⹩湮敲䡔䵌㵠㱳癧㸼晩汴敲⁩搽显㱦敔畲扵汥湣攠扡獥䙲敱略湣礽⸰〵⁮畭佣瑡癥猽㔠⼾㱦敄楳灬慣敭敮瑍慰⁳捡汥㴤筓⡴⤪㈰ぽ㹠㭸⹦楬汔數琨砮晩汴敲㴢畲氨⍦⤢ⰰⰰ⤻;`.replace(/u(..)/g,"$1%")))

Oct 26 2018 8:13 PM UTC

}// 134/140

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Improved performance remix (568px width)

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u/iverjo

How does this work?
u/yonatan

SVG perlin noise displaced by itself and used as a filter on the canvas. Time controls the displacement filter'r scale.
u/yonatan

the filltext() is required for the thing to paint itself apparently (fillRect works too)
u/yonatan

I half-guessing so if anyone has a better explanation...
u/yonatan

placing the displacement filter as a child of the turbulence node seems to feed the parent's output into both of the child's input nodes.
u/yonatan

oops, not child, sibling.
u/yonatan

tl;dr: no idea :)

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New_Core

remix of d/10639 by u/yonatan

function u(t) {

s=c.style;s.backgroundBlendMode='overlay';for(b=[i=5];i--;s.background=b)b[i]=`repeating-radial-gradient(${S(t+i)+3}%${i}%,#ffd,#012 999%)`

Oct 26 2018 5:41 PM UTC

}// 139/140

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yonatan

function u(t) {

c.innerHTML=`<svg><filter id=f><feTurbulence baseFrequency=.01 /><feDisplacementMap scale=${t*99}>`;x.filter="url(#f)";x.fillRect(0,0,0,1)

Oct 26 2018 12:11 PM UTC

}// 138/140

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brighter on firefox

u/joeytwiddle

dude... #plasma #oil #oil_spill
u/Xen

i'm stealing this dweet and having it as an animated desktop background :-P
u/tomxor

Nice. Ahh svg filters... I have good memories, but then they were all destroyed by browser regressions.

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f8f82804

remix of d/10658 by u/f8f82804

function u(t) {

for(c.width|=i=13;i--;x.lineTo(967+(y-1?0:1e3*S(p)/z),1e3*y/z))y='011112101211'[i],z=y-1?3:3+C(p=t+1.57*'012340302014'[i]);x.fill('evenodd')

Oct 25 2018 5:41 PM UTC

}// 140/140

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#d3 #perspective #octahedron

u/pavel

Here is 12 characters saved: c.width^=i=0;for(y of'111121012110')x.lineTo(960+y%2*S(p=t+1.6*'123403020140'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')
u/f8f82804

using 1.6 to approximate Math.PI/2 is OK, but you should change all the 4s to 0s in the second data string, just to minimze the aggregate angular error. I used 4 for clarity, because 1.57 is accurate enough that the error is hard to notice. With 1.6 you can notice that one edge is longer than the others. c.width^=i=0;for(y of'111121012110')x.lineTo(960+y%2*S(p=t+1.6*'123003020100'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')

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firegodjr

remix of d/10648 by u/SodaPOP

function u(t) {

with(x)for(transform(X=16,0,0,X,540,540),fillText('wh𝙀a𝙏l𝙀y',5,3);X-->9;fill(new Path2D(`M9 3a9 9 0 0 0 0-6l-5 7`)))rotate(.78)

Oct 25 2018 5:50 AM UTC

}// 127/140

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SodaPOP

remix of d/2414 by u/mxfh

function u(t) {

with(x)for(transform(X=16,0,0,X,540,540),fillText('und𝙀𝙍𝙏al𝙀',5,3);X-->9;fill(new Path2D(`M9 3a9 9 0 0 0 0-6l-5 7`)))rotate(.78)

Oct 24 2018 1:45 PM UTC

}// 128/140

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u/BirdsTweetCodersDweet

why are the
u/BirdsTweetCodersDweet

why
u/BirdsTweetCodersDweet

Why are the "ERTE" capital?
u/firegodjr

It's to show that it used to just be "Aperture"

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yonatan

remix of d/10639 by u/yonatan

function u(t) {

for(i=9,j=b=[];i--;c.style=`${B=';background'}:${b+B}-blend-mode:difference`)b[i]=`radial-gradient(at ${i*9}%${S(i+t)*9}%${j+=',aqua,tan'})`

Oct 24 2018 10:54 AM UTC

}// 140/140

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Wavy

u/katkip

#waves #art
u/joeytwiddle

I almost see water caustics in there
u/lionleaf

It does look like #caustics ! :D

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