Top #rainbow 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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Current theme challenge: #ScaryMovies

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Xen

remix of d/9040 by u/firegodjr

function u(t) {

with(x)for(font="99px'",Z=i=1e3;i--;fillRect(S(l=t*i%i)*i+Z,C(l)*i+Z,v,-v*v),fillText(`🙀`,Z,Z))fillStyle=`hsl(${i},99%,${v=S(i/Z-t*5)*99}%`

Aug 1 2018 6:08 PM UTC

}// 139/140

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Bit of a dodgy De-Make but... theres a cat ;)

u/firegodjr

Honestly I like this one better, haha. It has lots of style in the color transitions. :D
u/aleamb

lol!
u/katkip

#cat
u/lionleaf

#emoji #rainbow #laser

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f8f82804

remix of d/16585 by u/f8f82804

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁘👷🐱𞐲𜀻𦀭🐱𝠻𨡥𩱩𫡐𨑴𪀨𩡩𫁬𚁡𬡣𚀰𛀰𛁷𛰸𛀰𛀷𚐩𚐩𬱥𭁔𬡡𫡳𩡯𬡭𚁡👃𚁳👘𛰹𞐭𭀩𛁢👓𚁳𚠳𚐬𛑢𛱃𚁴𛰳𛑳𚐬𨐯𤰨𭀪𜠩𛁘𛀵𝀰𚐬𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱘𛱷𯑴𭑲𫠬𞐵𙐬𝐰𙐩𨀬𩱬𫱢𨑬𠑬𬁨𨐽𛠰𜐻`.replace(/u../g,'')))

Nov 8 2019 10:31 PM UTC

}// 131/140

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#messy #rainbow

u/DaSpider

Somehow the compressed tweet shows as longer than the uncompressed code, and oth exceed 140 characters?! 😕
u/f8f82804

There's a mismatch in the way that characters are counted -- this compressor uses 32-bit characters which are counted as 2 bytes in the front end, but are counted as 1 by the back end. I think there's an issue on the Dwitter GitHub where u/lionleaf has some comments about why.
u/Cloud

#gradient

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rbong

function u(t) {

w=c.width^=0
for(X=w;X--;){x.fillStyle=`hsla(${X/100+t*50},99%,50%)`
x.fillRect(X,0,5,(3-S((X+t*999)*4/w)+C((X+t*55)*3/w))*200)
}

Oct 13 2018 5:47 PM UTC

}// 129/140

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Rainbow Wave

u/rbong

#rainbow #wave
u/joeytwiddle

I saw a sunset over the desert

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f8f82804

remix of d/9185 by u/f8f82804

function u(t) {

c.width=500;a=29;for(i=240;α=C(T=i/a-t),i--;)for(j=6;j--;x.fillRect(i,a+j*a+S(T)*7,1,30))x.fillStyle=`hsl(${a*j**1.4} 99%${9+a*(0<α)*α**2}%`

Aug 9 2018 9:22 PM UTC

}// 140/140

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Remix #rainbow #flag with improved palette and #phong #shading with better shadows- - #pride #pbr

u/f8f82804

Correct shadows are implemented with the 0<α factor. To golf this in, I had to drop the diffuse reflection term and reuse constants. Palette improvements just took tweaking without extra characters.
u/f8f82804

Loop restructuring also give a very slight FPS improvement.

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joeytwiddle

remix of d/531 by u/BriSeven

function u(t) {

for(i=600;i--;x.fillRect(X=X+400+c*600>>1,Y=Y+1076*(1-c&1)>>1,4,4),H=H+400*(c+t)>>2)c=(i*t^i)%3,t?x.fillStyle=`hsl(${H},50%,50%)`:X=Y=H=0

Aug 21 2017 4:02 PM UTC

}// 137/140

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Sierpinksbow

Show more comments…
u/joeytwiddle

i*t^i is a poor but short PRNG
u/sigveseb

Upvote for the colors
u/BriSeven

fantastic
u/joeytwiddle

I forgot to brighten the dull colors. Try 90%,60%
u/donbright

my new favorite sierpinski
u/joeytwiddle

Big brother: https://www.dwitter.net/d/3458
u/joeytwiddle

Another with colour: d/2668
u/iverjo

#sierpinski
u/CocoMeister

#fractal
u/joeytwiddle

#rainbow

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f8f82804

function u(t) {

x.lineWidth=4
t||x.strokeRect(712,492,496,96)
x.fillStyle=`hsl(${t}rad 90% 50%)`
x.fillRect(720+120*(t%4),500,2,80)

Jul 23 2019 4:38 PM UTC

}// 115/140

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#rainbow #progress -- inspired by https://reddit.com/r/oddlysatisfying/comment…

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Xen

function u(t) {

x.translate(1920,0)
x.scale(-1,1)
x.fillRect(1e3+C(t)*599,500+S(t^1)*499,t,9)
x.drawImage(c,S(t),C(t*.3))
x.fillStyle=`hsl(${t*99},50%,50%)`

Apr 25 2019 10:12 PM UTC

}// 140/140

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inkblot

u/Xen

#inkblot #rainbow #trippy

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puckipedia

function u(t) {

r=Math.random,v=w=t;for(i=2e3;i--;v=r()*240,w=r()*140)x.fillStyle=`hsl(${v+S(t+w/99)*70},99%,50%)`,x.fillRect(v*8,w*8,8,8)

Mar 3 2017 11:14 AM UTC

}// 122/140

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A weird rainbow-y thing that reminds me a bit of video compression

u/SpecialAgent

Reminds me of unicorn magic
u/joeytwiddle

#rainbow #plasma

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katkip

remix of d/11595 by u/katkip

function u(t) {

eval(unescape(escape`挮獴祬攮扡捫杲潵湤㵒⠩Ⱳ㴨堬夬猩㴾筩昨猾㌩砮晩汬却祬攽恨獬⠤筳⩴紬㤰┬㐰┩怬砮晩汬剥捴⡘⵳ⱙ⵳ⱳ⨲ⱳ⨲⤬爨堭猬夭猬猯㈩Ⱳ⡘⵳ⱙ⭳ⱳ⼲⤬爨堫猬夭猬猯㈩Ⱳ⡘⭳ⱙ⭳ⱳ⼲⥽㭲⠹㘰ⰵ㐰ⰴ㠰⤻`.replace(/u(..)/g,"$1%")))

Dec 31 2018 11:36 AM UTC

}// 138/140

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T-square #fractal #recursion #recursive #rainbow

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Purpzie

remix of d/3713 by u/bobdunn

function u(t) {

for(i=64;i--;)x.fillStyle=`hsl(${i*5+t*30} 60%${S(t*3)*25+50}%`,x.fillRect(i*30,S(4*t+3*i)*99,20,99);x.drawImage(c,-2,9)

Sep 28 2018 5:14 PM UTC

}// 120/140

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u/joeytwiddle

#rainbow

dwitter.net | #rainbow