Dweets awesomed by u/rep_movsd

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: #Food

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danny@hille.dk

function u(t) {

eval(unescape(escape`󭍼󯌨󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󨼮󭽩󩍴󪌽󭼽󜬵󝜬󪌽󜜶󜌩󚜻󩭯󬬨󪜽󭼪󪌻󪜭󛜻󢜮󩍡󭍡󛭳󩝴󚍛󛌬󚍰󚽴󚭷󙭷󧭷󚭡󚬱󛬶󚽷󛝴󚭷󙭷󚜭󬌯󞜬󭽝󛍩󚬴󚜩󨜽󣝡󭍨󛭡󭍡󫬲󚍘󟜭󛬵󚼱󚬨󪜥󭼩󛽷󛍙󟜭󛬴󚼲󚭩󛼱󩜵󚜬󬌽󭼯󚍙󚭙󚽘󚭘󚜪󚬮󝜪󛬵󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󢜬󜌬󜌩`.replace(/u../g,'')))

Aug 19 2021 9:08 PM UTC

}// 140/140

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Second attempt at an old school tunnel effect

Show more comments…
u/danny@hille.dk

Uncompressed code: t||(I=new ImageData(c.width=w=255,h=160));for(i=w*h;i--;I.data.set([,,(p+t*w&w^w*a*1.6+w-t*w&w)-p/9,w],i*4))a=Math.atan2(X=-.5+1*(i%w)/w,Y=-.4+2*i/1e5),p=w/(Y*Y+X*X)**.5*.5;x.putImageData(I,0,0)
u/danny@hille.dk

#tunnel
u/danny@hille.dk

first attempt: d/23462
u/danny@hille.dk

Javascript garbage collector is struggling, when you create a new ImageData at each run, which results in some nasty stuttering. t||(I=new ImageData... fixes this issue
u/magna

This worked for me: I=x.getImageData(0,0,c.width=w=255,h=160) (no need for t|| check)
u/danny@hille.dk

u/magna while getImageData does not hit the garbage collector quite as hard, it takes about 1.3 times longer to execute, wich amounts to 53 fps, while t||(I=new ImageData... runs at a constant 60 fps (on my old 2014 macbook pro :-))

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tactical_retard

remix of d/23593 by u/tactical_retard

function u(t) {

Y=60*t
for(X=w=h=2e3;X--;){
a=(X-1250)/(q=w/4)
b=(Y-q)/q
r=j=0
for(i=50;i--;)t=r,r=(t*t-j*j)+a,j=(2*t*j)+b;r*r+j*j<4&&x.fillRect(X,Y,1,1)}

Aug 19 2021 7:17 PM UTC

}// 138/140

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mandelbrot set

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pavel

function u(t) {

with(x)for(i=w=t?0:2e3,h=540;y=h*S(i*i--);beginPath(fill(rect(690,491,h,98))))ellipse(i,h+y,2,20,Math.atan2(y-(i-720)*(i-1200)/y,2*i-w),0,7)

Aug 19 2021 6:31 PM UTC

}// 140/140

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#magnet

u/tomxor

Perfect
u/danny@hille.dk

very nice indeed
u/tomxor

And considerate t?0:2e3 :D

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danny@hille.dk

remix of d/23577 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󨼮󭽩󩍴󪌽󭼽󜼰󜌬󭼩󞽦󫽲󚍩󟝷󚬱󞜰󞽩󛜭󞼩󦜽󪜯󭼯󞜭󞜬󬬽󚌨󦌽󚍩󙝷󚜯󞜭󜜷󚜪󦍼󦜪󦜩󛽷󛍉󛭤󨝴󨜮󬽥󭌨󦽋󟝔󚍙󛽲󛝴󚬲󝝞󦌯󬬩󚭙󚼱󝬪󚌲󚽓󚍴󚬳󚜩󛽲󛍋󛼳󛍋󛽲󛼶󝌬󭽝󛍩󚬴󚜻󮌮󬍵󭍉󫝡󩽥󡍡󭍡󚍉󛌰󛌰󚜻`.replace(/u../g,'')))

Aug 18 2021 9:52 PM UTC

}// 131/140

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unholy light remix

u/neimad

show off
u/Xen

Nicely done!
u/magna

AWESOME!
u/tomxor

Really cool effect, looks like some kind of rotating light and shadow or a hologram
u/danny@hille.dk

Thanks for the nice comments guys!

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lerc

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑻𬱥𭁔𬡡𫡳𩡯𬡭𚁮🐱𛠰𜰬𜀬𜀬𫠬𦀽𞐶𜀫𤰨𭀪𚡴𚐪𜠰𛁙🐵𝀰𚱃𚁴𚠸𜀩𚠲𜀩𒡤𬡡𭱉𫑡𩱥𚁣𛀭𦀬𛑙𚐊𩡯𬠨𪐽𜰹𞱩𛐭𞱦𪑬𫁓𭁹𫁥👒𚀰𛁍🐨𥀨𭀪𚡩𚐩𚡙𛁎🐨𠰨𞀪𭀪𪐩𚰮𝐩𚡙𚐩𒡦𪑬𫁒𩑣𭀨𤰨𪐩𚠷𛁃𚁩𚐪𝰬𜐬𜐩𯐻`.replace(/u../g,'')))

Aug 18 2021 11:58 AM UTC

}// 132/140

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Nebula (Mosty just playing around trying to make some nice cloud structure)

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pavel

remix of d/23577 by u/rodrigo.siqueira

function u(t) {

I=new ImageData(c.width=w=297,w);for(i=2e5;j=i--/4;I.data[i]=T(Y/r|X/r-42*t)*9+7/r)X=~j%w/17+9,Y=j/5e3-5,r=(X*X+Y*Y)/w;x.putImageData(I,0,0)

Aug 17 2021 10:40 PM UTC

}// 140/140

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Inside

u/pavel

Really a remix of u/danny@hille.dk version from the comments

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taupelink

remix of d/23574 by u/taupelink

function u(t) {

for(i=q=k=99;--i;x.fillRect(k*q*X,630-i-q/Y,-q*q/v,k*i/Y/v))f=i*t,X=f*f%1,Y=X*f%2-1,x.fillStyle=R(q/=1+S(q*X),q=q%9*i,q-=i/Y,Y*Y/q*k),v=2**t

Aug 17 2021 5:46 PM UTC

}// 140/140

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d/23578

Show more comments…
u/danny@hille.dk

dang that's nice
u/magna

Holy...
u/pavel

I think these would do better if they showed up all at once. I tried to muck around but your q logic is hard to compress for(k=99,m=t?0:5e4;X=S(m),Y=S(m*m--);x.fillRect(k*q*X,630-i-q/Y,q*q*m/9e5,i/Y))i=m%k,x.fillStyle=R(q=k/(1+S(k*X)),q=q%9*i,q-Y*k,k*Y*Y/q)
u/pavel

Yours looks really nice if you wait for it to finish!
u/rodrigo.siqueira

This #cityscape #scene deserves to be printed and framed. #city
u/rep_movsd

This is the best one of your recent technique
u/magna

I would totally want this on my wall
u/UEZ

#expressionism
u/taupelink

Thank you everyone for the compliments! And for bearing with me as I try different alternatives. And especially to u/pavel and others who have helped with coding/golfing.
u/magna

u/taupelink Got one! I'll print out and attach the source code on it as well.
u/taupelink

thank you so much--enjoy!

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rodrigo.siqueira

remix of d/23572 by u/rodrigo.siqueira

function u(t) {

for(Z=c.width=i=175;i--;)for(H=Z;H--;x.fillRect(i,H,1,1))Y=H/9-5,r=((X=i/10-9)*X+Y*Y+1-C(t*8))/Z,x.fillStyle=R(K=T(Y/r|X/r+t*Z)*Y+5/r,K/5)

Aug 17 2021 5:16 PM UTC

}// 138/140

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Spierpinski debris around a pulsating core #sierpinski

u/danny@hille.dk

Beautiful
u/danny@hille.dk

better resolution + performance for(I=new ImageData(c.width=w=175,w),i=w*w;i--;)Y=i/w/9-5,r=((X=(i%w)/10-9)*X+Y*Y+1-C(t*3))/w,I.data.set([K=T(Y/r|X/r+t*25)*Y+16/r,K/6,,255],i*4);x.putImageData(I,0,0)
u/jellyedwards

Wow!

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mxfh

remix of d/23558 by u/mxfh

function u(t) {

I=new ImageData(w=2048,w)
b=new Int32Array(I.data.buffer)
for(i=4e6;i--;X=i%w-960,b[i]=X*X+Y*Y+S(t)/Y*i<<14)Y=i/w-540
x.putImageData(I,0,0)

Aug 17 2021 3:33 PM UTC

}// 139/140

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Event Horizon Camera

u/mxfh

#time

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danny@hille.dk

remix of d/23572 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󨼮󭽩󩍴󪌽󪜽󥼽󜼲󜌬󪌽󜜸󜜩󞽦󫽲󚍳󟝉󛭤󨝴󨜻󪜭󛜻󚝦󫽲󚍈󟝨󞽈󛜭󞽳󛭳󩝴󚍛󥌨󢼭󭌯󞜩󛌭󥌨󢼫󭌯󞜩󚬹󛍔󚍋󚽴󛼹󚜪󞜬󥽝󛌨󪜫󢌪󥼩󚬴󚜩󦜽󢌯󞜰󛜱󛍲󟜨󚍘󟝩󛼹󜌭󜜮󞌩󚭘󚽙󚭙󛜶󚜯󥼬󢼽󦜯󬭞󦌯󬬭󭌪󞜻󮌮󬍵󭍉󫝡󩽥󡍡󭍡󚍉󛌰󛌰󚜊`.replace(/u../g,'')))

Aug 16 2021 11:05 PM UTC

}// 140/140

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Digital wastelands remix

dwitter.net | rep_movsd (46906)