New #background 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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username

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👲👮🐾𤰨𚁩𚱴𚠶𜀩𚡪𚠪𫠫𞐩𚠹𧠰𒡦𫱲𚁩🐱𝰻𪐭𛐻𡡐𤰽𛠳𚑦𫱲𚁪🐳𜀻𪠭𛐻𮀮𬱴𬡯𪱥𚀩𚑦𫱲𚁸𛡢𩑧𪑮𤁡𭁨𚁫🐹𞐫𬠨𝰩𚠹𚐻𪰭𛐻𮀮𫁩𫡥𥁯𚀱𜠰𚡩𚱦𚁓𚐬𜐲𜀪𚁪𙐹𚐫𩠨𠰩𚐩𩠽𡠽🠴𚡲𚀴𚐪𡠨𬠨𜰩𚡫𛰹𞐩𚰳𚡲𚀵𚐪𡠨𬠨𜠩𚡫𛰹𞐩`.replace(/u../g,'')))

Jun 30 2019 11:46 AM UTC

}// 140/140

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doodles you can actually take a look at (#waitforit, fullscreen advised)

u/joeytwiddle

doctor's prescriptions
u/geb

#background

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rodrigo.siqueira

remix of d/14541 by u/rodrigo.siqueira

function u(t) {

for(I=1850;I--;)for(var a=0,b=t/28,k=11;k--;)a=S(a)*b+t/I-2,b=C(I*a/800)*b-2,b>0&&(x.fillStyle=R(0,b*9,b*b*20),x.fillRect(t*120,I-770,2,1))

Jun 12 2019 3:26 PM UTC

}// 139/140

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Blue Marbled Patterns of Chaos #texture

u/geb

#background

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username

remix of d/13027 by u/username

function u(t) {

t*=256
for(i=3e3;i--;x.fillStyle=`hsl(${t*42},99%,50%`)K=(i&2)-t*t/i,X=S(i)+S(i)*K/t*9,Y=C(i)-C(i)*K/t*9,x.fillRect(960+X*150,640+Y*150,8,8)

Apr 5 2019 10:59 AM UTC

}// 140/140

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u/geb

#background

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MAxSaL

function u(t) {

for(i=0;i<120;i++)
x.fillRect(t*99, S(t*9)*9+i*9, 1, T(C(t)%S(i))*9);

Apr 1 2019 9:18 AM UTC

}// 70/140

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Wavey pattern

u/geb

#background

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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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spaceman_blanc

remix of d/12383 by u/DataMeta

function u(t) {

c.style.background=R();for(i=325;i--;)x.fillStyle=`hsla(${i},99%,50%,.02)`,k=912*S(t/i),x.fillRect(960+k*1.8*T(i^t),524+k/C(i),i/9+9,i/9+9)

Feb 19 2019 8:49 AM UTC

}// 139/140

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2001

u/geb

#background
u/spaceman_blanc

To any remixers, you can drop the "c.style.background=R();" from the start and you will have 24 chars to play with.
u/katkip

Nice
u/katkip

Not really u/spaceman, on upload, the canvas will be reseted to white
u/spaceman_blanc

yeah youre right, didnt realise that. I mean you could still do something cool with 24 chars and white back ground i guess

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Xen

remix of d/12413 by u/Xen

function u(t) {

for(i=2e3;i--;)x.fillRect(i+S(C(t/3)*i),t*99,1,1)

Feb 18 2019 6:05 PM UTC

}// 49/140

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u/DataMeta

This one is smooth. Surely there is an even more golfed moire possible
u/geb

#background

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New_Core

remix of d/10639 by u/yonatan

function u(t) {

s=c.style;s.backgroundBlendMode='difference';for(b=[i=9];i--;s.background=b)b[i]=`linear-gradient(${t*i*5}deg,#012,#350,#dff,#910)`

Oct 26 2018 6:50 PM UTC

}// 131/140

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was fun mixing =)

u/geb

#background
u/13thptr

#oil

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E-Mouse

function u(t) {

x.fillRect(0,0,2e3,1e4)
x.strokeStyle=R(a=255/2,S(t/3)*a,C(t/3)*a)
x.ellipse(960,f=560,f,f,1,p=Math.PI*t,p+T(Math.random())*1.5)
x.stroke()

Oct 15 2018 3:56 PM UTC

}// 139/140

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Iris?

u/geb

#background

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geb

remix of d/9918 by u/sChiab8

function u(t) {

w=1920;for(i=w;i>t;i--){x.strokeStyle=`hsl(${t*i},42%,42%,.42)`
x.strokeRect(w/2+S(i-t)*i,w/3+T(i+t)*i,i%t,i%42)}

Sep 20 2018 1:35 PM UTC

}// 114/140

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#background

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