Dweets awesomed by u/yokljo

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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rodrigo.siqueira

remix of d/13410 by u/katkip

function u(t) {

if(t<2){x.globalAlpha=.7
x.fillRect(0,0,1,1)
x.rotate(Math.PI*.8)
x.translate(-450,-700)
x.drawImage(c,0,0,1e3,1e3)
x.translate(-900,-310)}

Apr 23 2019 2:52 PM UTC

}// 139/140

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Starfield #fractal

u/katkip

Nice
u/sigveseb

Pretty af
u/Purpzie

Shortened by 5 characters: if(t<2)with(x)globalAlpha=.7,fillRect(0,0,1,1),rotate(Math.PI*.8),translate(-450,-700),drawImage(c,0,0,1e3,1e3),translate(-900,-310)

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katkip

remix of d/13408 by u/katkip

function u(t) {

x.translate(960,440);x.font='4cm"';x.fillText("❤",0,0)
x.rotate(Math.PI*2/6)
x.drawImage(c,400,990,960,920)

Apr 23 2019 2:26 PM UTC

}// 107/140

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yokljo

function u(t) {

w=c.width=100
for(a=w;a--;)for(b=w;b--;)d=S(a*a+b*b)*255,x.fillStyle=R(d,d/3),x.fillRect(a,b,1,1)

Apr 22 2019 9:08 AM UTC

}// 97/140

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Okay so I wasn't trying do do this at all, but BAM, a pattern appears out of nowhere. Hooray for maths.

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KilledByAPixel

remix of d/13325 by u/KilledByAPixel

function u(t) {

for(i=0;i<2e3;x.fillRect(i?960+i*S(F=260*(t+9)/i+S(i*i)):0,i?500+.2*(2*i*C(F)+2e4/i):0,K=i++?S(i)*9:2e3,K))x.fillStyle=R(99*i,2*i,i,i?1:.4)

Apr 20 2019 7:07 PM UTC

}// 139/140

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#blackhole

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u/DataMeta

Quite cool!
u/katkip

wow
u/aleamb

epic!
u/donbright

#space #astronomy
u/KilledByAPixel

Full explanation on my blog: http://frankforce.com/?p=6378
u/chenliang

cool
u/katkip

top of the year

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KilledByAPixel

function u(t) {

for(i=0;i<2e3;x.fillRect(i?960+i*S(F=300*t/i+i+S(z)/9):0,i?460+.2*(2*i*C(F)):0,K=i++?S(i)*9:2e3,K))x.fillStyle=R(z=i*i,z%498,z%499,.2+i)//★

Apr 20 2019 5:26 PM UTC

}// 140/140

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#galaxy

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vinca

function u(t) {

for(0==t&&(c.width=960,x.translate(480,270),A=.03),X=480,Y=(0|50*t)%540-270;X>=-480;--X)T(A*X)*T(A*Y)>S(A*A*X*Y)&&x.fillRect(X,Y,1,1)

Mar 24 2019 8:00 AM UTC

}// 133/140

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Show more comments…
u/katkip

This is #beautiful! How did you discover this?
u/Xen

Love it!
u/magna

WOW!
u/aleamb

dude!
u/vinca

I found a formula using this tool https://imgur.com/GKPVSJd
u/aleamb

#math #inecuation
u/robbyg

Awesome stuff, and thanks for sharing the tool! 111 bytes (but with no slow reveal): if(!t)for(Y=V=270,A=.03;V>-Y;V--)for(H=X=480;H>-X;H--)T(A*H)*T(A*V)>S(A*A*H*V)&&x.fillRect(H*2+X*2,V*2+Y*2,2,2)

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vinca

function u(t) {

for(c.width|=0,j=20,t*=.3,x.font="4em'";j--;){for(i=6;i>0;i-=6/99)r=99*S(3*i)+40*j,x.fillText("🍄",1e3+r*C(i+j*S(t)),500+r*S(i+j*S(t)))}

Mar 22 2019 1:31 PM UTC

}// 135/140

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yokljo

function u(t) {

c.style.filter='invert(1)'
for(i=190;i--;)o=300+i*Math.random()*C(t),j=i/50,x.fillRect(960+S(t*i+j)*o,540+C(t*i/3+j)*o,2,o/i/20)

Mar 21 2019 12:13 PM UTC

}// 128/140

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Give it at least 10 seconds to start looking nice. After about a minute it's desktop-background-worthy :)

u/Jezza

#waitforit
u/geb

#background

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tomxor

function u(t) {

eval(unescape(escape`挮睩摴栽㐸〻挮獴祬攽❦楬瑥爺楮癥牴⠱⥳数楡⠱✻景爨椽㉥㐻椭ⴻ⥸⹦楬汒散琨㈴〫㤹⩓⡘㵩┱㈰⼳㤩⩃⡙㵩⼶攳⤭䌨夫琩⨨娽匨匨太㐩⽃⡘⨱㘯天⤪⨵⨸⤬ㄳ㔫㤹⩃⡘⤭䌨堫琩⩚ⱓ⡘⤬䌨夫娯ㄶ⭴⤪⨷⨳⤻`.replace(/u(..)/g,"$1%")))

Mar 18 2019 11:00 PM UTC

}// 140/140

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Super Dune #planet #space

u/tomxor

A tumultuous and dusty planet trapped in the middle of a binary star system (my excuse for lighting both sides :D). prepend t/=6; if you have a crazy fast GPU
u/lionleaf

Wow, this one is simply amazing!
u/aleamb

wow! superb! amazing!
u/iverjo

Very good!
u/vain

Unbelievable great bump map like fx

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tomxor

remix of d/12779 by u/tomxor

function u(t) {

eval(unescape(escape`琽琯㤫ㄮ㜻挮睩摴栽㈴〻挮獴祬攽❦楬瑥爺楮癥牴⠱✻景爨椽㉥㐻椭ⴻ⥸⹦楬汒散琨㔴〪䌨堽ㄮ㔷⵩┱㠰⼳㤰⤬㘰〫㔴〪匨堩⩃⡙㴳⸱⵩⼴攴⤭匨䌨匨太㈰⤫匨堪㈰⤩⨳⤪⨳⨶ⰱⰨ䬽䌨夫琩⨹⤼⸱㼮ㄺ䬾ㄿㄺ䬩`.replace(/u(..)/g,"$1%")))

Mar 17 2019 3:08 PM UTC

}// 140/140

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Moon Sunrise #moon #space

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u/Xen

impressive!
u/magna

wow!
u/Jezza

Cool!
u/sigveseb

Holy shit that's good
u/joeytwiddle

Gosh! #lighting
u/lionleaf

#planet amazing!
u/lionleaf

Well, not really a #planet but related to the hashtag :)
u/joeytwiddle

#hiddengem
u/DataMeta

Demarcate the gem before it's hidden! ;D
u/katkip

#compressed
u/jdspugh

Wow

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