Dweets awesomed by u/Ghoust

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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KilledByAPixel

remix of d/21901 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭼽󨼮󭽩󩍴󪌦󟝪󟜱󜌳󝬸󛍸󛭦󪝬󫍓󭍹󫍥󟜧󘼱󜼰󙼻󪬭󛜻󮌮󩭩󫍬󤭥󨽴󚍪󙝷󛍪󟬾󝼬󚍓󚌨󦌪󚬨󞜭󤼨󠜪󠬩󚬹󯌰󚜩󙜸󯌨󦜪󚬨󞜭󤼨󠜪󠬩󚬹󯌰󚜩󙜸󚽴󚜯󜬫󛬵󚜪󚍨󚼮󝜩󛌱󚜩󦌽󪬥󭼫󭌪󝬰󯌰󛍙󟝪󟬾󝼬󠬽󚍙󟬾󜼩󚼱󛍨󟝂󟬨󬜽󤼨󠜽󦌾󟬳󚜪󜼩󚼶󯍓󚍁󚭂󚜾󛬹`.replace(/u../g,'')))

Aug 15 2022 4:33 AM UTC

}// 140/140

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Broken Gameboy 🕹️

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clauswilke

remix of d/25936 by u/KilledByAPixel

function u(t) {

x.globalAlpha=0.01;
for(Y=0,i=3000;i--;)x.fillRect(i,Y+t*159,1,Y+=C(i*i*t))
for(Y=0,i=2000;i--;)x.fillRect(Y+t*159,i,Y+=C(i*i*t+500),1)

Aug 13 2022 11:28 PM UTC

}// 135/140

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Going for a weave texture

u/KilledByAPixel

nice!
u/clauswilke

Was mostly just trying to understand your code. The C(i*i*t) is just to generate randomness, correct? And instead of transparency, you draw fractional pixels.
u/KilledByAPixel

that's pretty much it. C(i*t) gives a good random walk that varies slightly around 0, one of the smallest ways to make noise like this

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KilledByAPixel

remix of d/25935 by u/KilledByAPixel

function u(t) {

c.width=w=500
x.fillStyle='#025'
for(Y=j=0;j<9;++j)for(i=w;i--;Y+=S((i+t/3e3)**2*j))x.fillRect(i,a=Y+j*29,j/9,w),x.clearRect(i,a,j,1)

Aug 13 2022 4:17 AM UTC

}// 133/140

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Lost At Sea 🏊‍♂️

u/UEZ

I like the very smooth waves :-)
u/taupelink

wow!
u/pavel

Very nice vibe. You can do x.fillStyle='#025'+j for the fade to avoid the low rez.
u/pavel

Hm your sub-pixel trick works even at 1:1 rez... neat

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386dx25

remix of d/25946 by u/386dx25

function u(t) {

this.w||(w=c.width=255,v=4*w)
I=x.getImageData(0,0,w,w);d=I.data
for(i=0;i<v*w;i++)d[i]=((d[i+4]+d[i+v])/2+t%5)&w
x.putImageData(I,0,0)

Aug 12 2022 7:18 PM UTC

}// 135/140

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calculated chromium

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386dx25

function u(t) {

this.w||(w=c.width=255,v=4*w)
I=x.getImageData(0,0,w,w);d=I.data
for(i=0;i<v*w;i++)d[i]=((d[i+4]+d[i-4]+d[i+v])/3+2)&w
x.putImageData(I,0,0)

Aug 12 2022 7:12 PM UTC

}// 140/140

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foam waves

u/Odog8

Incredible!

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rodrigo.siqueira

remix of d/25942 by u/ArthurThuczsec

function u(t) {

c.width|=c.style.filter='invert('
for(Y=i=2e3;i--;) {
  x.fillRect(i,2700-Y,1,Y+=S(i**4-t)*3)
  x.fillRect(i,T(t/160+i**3)*Y,S(Y/999),4)
}

Aug 12 2022 2:17 PM UTC

}// 138/140

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Cosmic waves

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taupelink

remix of d/25910 by u/taupelink

function u(t) {

eval(unescape(escape`󮬽󛬹󚽍󨝴󪌮󬭡󫭤󫽭󚌩󛼹󞜻󩭯󬬨󫜽󭌿󜌺󜽥󝌻󫜭󛜾󜝥󝌻󮌮󩭩󫍬󚌩󚝸󛭢󩝧󪝮󤍡󭍨󚍸󛭦󪝬󫍓󭍹󫍥󟝒󚍪󟝭󚬪󚍧󟝭󙝺󛜮󜼵󚜬󫜯󜜵󜌬󪜽󫜥󜬲󜍞󪬯󜬬󬜽󤼨󫜩󚬪󜬯󪬫󪜯󜭥󝌫󛬰󜜩󚜬󮌮󨝲󨼨󦌽󫜥󚌳󚽧󚜪󝬴󜌬󦜽󞝥󝌯󪬬󪬯󬜯󞜪󤼨󦌪󩼫󦜪󬜩󚬪󞌬󪜬󪜫󝬪󩼩`.replace(/u../g,'')))

Aug 11 2022 10:17 PM UTC

}// 140/140

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d/25944

u/taupelink

#B194

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sawaxon

function u(t) {

c.width|=0
for(let i=0;i<399;i++,x.fillStyle=`hsl(${S(t+i)*399},99%,60%)`)x.fillRect(999+S(t-i)*300+C(t/i)*499,500+C(t+i)*400,C(t/i)*99,50)

Aug 11 2022 2:49 PM UTC

}// 139/140

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#ring

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ArthurThuczsec

remix of d/25936 by u/KilledByAPixel

function u(t) {

for(Y=i=2e3;i--;)t>13?0:x.fillRect(i,Y-t*99,t/99,Y-=C(i*i*t)*9)

Aug 11 2022 10:55 AM UTC

}// 63/140

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-[ Forest ]-

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tactical_retard

function u(t) {

Y=t*60
for(X=1920;X--;x.fillStyle=R(b-99),x.fillRect(X,Y,1,1))for(p of[[b=99,99],[600,540],[1500,940]])b+=C(Math.hypot(X-p[0],Y-p[1])/9)*99

Aug 9 2022 11:02 PM UTC

}// 139/140

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#interference

u/magna

Love it!
u/andrea270872

Wow, my eyes keep telling me that it is moving... but it is really not. Cool
u/Xen

nice!!

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