New #waitForIt dweets

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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yonatan

remix of d/10690 by u/yonatan

function u(t) {

eval(unescape(escape`挮楮湥版呍䰽怼獶朾㱦楬瑥爠楤㵦㸼晥呵牢畬敮捥⁢慳敆牥煵敮捹㴤笱⽴素牥獵汴㴢∯㸼晥䑩獰污捥浥湴䵡瀠楮㵓潵牣敇牡灨楣⁳捡汥㴤筴紾总砮景湴㴧㥩渠砧㭸⹦楬汔數琨挮獴祬攽≦楬瑥爺畲氨⍦⤢ⰰⰱ攳⤻`.replace(/u(..)/g,"$1%")))

Oct 25 2018 10:31 PM UTC

}// 140/140

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#waitforit

u/yonatan

c.innerHTML=<svg><filter id=f><feTurbulence baseFrequency=${1/t} result=""/><feDisplacementMap in=SourceGraphic scale=${t}>;x.font='9in x';x.fillText(c.style="filter:url(#f)",0,1e3);
u/yonatan

Judging by the sound of my fan, I'm guessing filters use SIMD
u/yonatan

or maybe just if they can't find a working GPU
u/yonatan

firefox seems to handle this one better than chrome

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MudkipGuy

function u(t) {

eval(unescape(escape`景爨爽䵡瑨⹲慮摯洬樽〻樫⬼㤹㬩筦潲⡡㴳⩲⠩Ɫ㴲⩲⠩Ⱪ㵣㵤㴰Ɒ㴱㔻椼瀦♣⩣㰴㭩⬫⥥㵣Ᵽ㵣⩣ⵤ⩤⭡ⴲⱤ㴲⩤⩥⭢ⴱ㭸⹦楬汓瑹汥㴢桳氨∫椪瀫∬㔰┬㔰┩∬砮晩汬剥捴⠶㐰⩡ⰵ㐰⩢ⱰⱰ⥽`.replace(/u(..)/g,"$1%")))

Oct 24 2018 10:26 AM UTC

}// 134/140

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Mandelbrot Set

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u/MudkipGuy

uncompressed source:
u/MudkipGuy

for(r=Math.random,j=0;j++<99;){for(a=3*r(),b=2*r(),i=c=d=0,p=15;i<p&&c*c<4;i++)e=c,c=c*c-d*d+a-2,d=2*d*e+b-1;x.fillStyle="hsl("+i*p+",50%,50%)",x.fillRect(640*a,540*b,p,p)}
u/yonatan

for(j=99;j--;x.fillStyle=hsl(${i*9} 50%50%,x.fillRect(640*a,540*b,9,9))for(b=(z=j*t)**3%2,a=z**5%3,i=c=d=0;i<15&c*c<4;i++)e=c,c=c*c-d*d+a-2,d=2*d*e+b-1
u/yonatan

Nice one!
u/katkip

#mandelbrot #fractal
u/magna

#waitforit
u/joeytwiddle

Novel!
u/iverjo

Nice! Now make the rectangles progressively smaller, so that the image becomes more and more detailed over time
u/MudkipGuy

heh! I was already playing around with that... for(r=Math.random,j=99;j--;){for(a=3*r(),b=2*r(),i=c=d=0;i<30&&c*c<4;i++)e=c,c=c*c-d*d+a-2,d=2*d*e+b-1;x.fillStyle="hsl("+i*8+",50%,50%)",x.fillRect(640*a,540*b,p=30/t**.5,p)}
u/katkip

Awesome!

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tomxor

remix of d/10534 by u/tomxor

function u(t) {

k=160,i=1e3,w=.04
for(t+=32;p=i&1,m=k/C(t/i)+p*(k/2+i%k),i--;)x.fillRect(
960+m*S(n=t/16+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=w-C(n)*w,s)

Oct 20 2018 1:58 PM UTC

}// 133/140

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#space #saturn #drawing

u/katkip

oh wow
u/joeytwiddle

Very nice. Set w=.2 if you don't want to #waitforit
u/tomxor

Oops, this doesn't seem to work at all in some browsers... showing up the aignificant subpixel interpolation differences between canvas implementations. Works in chrome - soz

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katkip

remix of d/10534 by u/tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i);for(t+=t*10;p=i&1,m=t/C(t/i)+p*(t/i*i+i%t),i--;)x.clearRect(960+m*S(n=i*i+t/9+t*i/8769)/C(1/t+p),540+m*C(n+p/t),5,5)

Oct 19 2018 6:10 PM UTC

}// 140/140

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#waitforit to see how does it look in a black hole!

u/tomxor

OMG it's a stargate :P

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prplz

function u(t) {

for(c.width|=i=9;i--;)x.fillRect(400+i*100+S(t)*300,400,50,200)















x.font='60em a',t&8&&x.fillText('👻',350+t**4%33,900+t**4%29)

Oct 11 2018 3:22 AM UTC

}// 139/140

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#default

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u/firegodjr

I WAS UNPREPARED
u/SuperFromND

ABSOLUTELY SPOOPED
u/Purpzie

WHEEZE
u/katkip

haha genius #scary
u/f8f82804

#halloween #trick
u/aleamb

lol
u/donbright

hahaa
u/iverjo

xD
u/joeytwiddle

#waitforit

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f8f82804

remix of d/10293 by u/f8f82804

function u(t) {

for(i=768;i--;x.globalCompositeOperation=i?'source-over':'xor')x.fillRect(1920*Math.random(),1080*Math.random(),8,8);

Oct 10 2018 4:52 PM UTC

}// 117/140

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#twinkle #stars #waitforit

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Xen

remix of d/10269 by u/katkip

function u(t) {

for(c.width|=i=99,x.translate(Z=960,540);i--;x.rotate(S(t/Z)*99))x.lineTo(i*9,0)
x.fill("evenodd")

Oct 9 2018 5:06 PM UTC

}// 98/140

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u/f8f82804

it just keeps getting better! #waitforit
u/f8f82804

#perfectloop

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katkip

function u(t) {

c.style.background='#0af';c.width*=1;for(a=(2+t*t)|0;a--;x.lineTo(C(a+b*b+t)*S(b+a*a+t)*960+960,S(b)*540+540,i=b/40-5,i))b=4*a*a;x.fill()

Oct 1 2018 12:35 PM UTC

}// 137/140

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#waitforit to see the electric waves simulation

u/loni_art

crystalline!
u/donbright

ok now this is something that is extremely unique

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Purpzie

remix of d/6048 by u/staberinde

function u(t) {

for(c.width|=i=0;i<361;i++)x.fillRect(C(i)*(a=i*C(t*i/360))+960,S(i)*a+540,9,9)

Sep 29 2018 6:56 PM UTC

}// 79/140

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Shortened by a whopping 55 characters

u/donbright

inspired by @Purpzie #interference i simplified an old one ... what fascinates me is the entire pattern is based on modulo function applied to Quadrance, there is no cosine, sine, trig, or even really commands to draw colors based on posiiton. #waitforit
u/donbright

sorry meant to post that on my remix
u/Purpzie

oh pfft it's okay

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ellisk1

function u(t) {

c.width|=j=400;f=a=>j+(t*t*a|0)%9*100+S(t)*j;x.fillRect(d=C(t)>0,500*d,2e3,500);x.fillRect(f(9),j,50,200);x.clearRect(f(8),j+100*d,50,100)

Sep 28 2018 1:39 PM UTC

}// 138/140

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#default

u/ellisk1

#waitforit

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