Dweets awesomed by u/firegodjr

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/23964 by u/KilledByAPixel

function u(t) {

X=t?X+r*50:0
for(i=h=350+199*C(t*4+X%1)|0;--i;x.fillRect(t?X-w+w*r:i*8,t?600+(r*8%4|0?i-h:h-i):r*1080,t?w:500,t?2:r*2))r=Math.random(w=i/4)

Sep 30 2021 11:28 PM UTC

}// 139/140

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Tree Lake #uncompressed

Show more comments…
u/rep_movsd

#art
u/magna

This is #art in several different ways.
u/magna

You could have waited a day and post this as #inktober
u/danny@hille.dk

Love it!
u/sigveseb

Stunning!
u/smtsjhr

wonderful
u/FireFly

awesome \o/

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firegodjr

remix of d/23960 by u/firegodjr

function u(t) {

x.globalCompositeOperation="difference"
x.fillStyle="#fff"
x.fillRect(0,0,2,2)
x.drawImage(c,2,0)
x.drawImage(c,1,2)

Sep 29 2021 7:22 PM UTC

}// 116/140

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Recurrence (more triangular)

u/magna

Awesome!
u/magna

This could be combined with a gradual zoom to create a perfect loop
u/rodrigo.siqueira

Mesmerizing
u/astucky21

Something ominous about this, but love it.
u/aleamb

#sierpinski

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firegodjr

function u(t) {

x.globalCompositeOperation="difference"
x.fillStyle="#f00"
x.fillRect(0,0,1,1)
x.drawImage(c,1,0)
x.drawImage(c,0,1)

Sep 29 2021 6:57 PM UTC

}// 116/140

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Recurrence

u/aleamb

#recursion #sierpinski

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rodrigo.siqueira

remix of d/23957 by u/rodrigo.siqueira

function u(t) {

for(i=k=900;--i;x.fillRect(k+f*C(i*Y),k-Y*q,q*Y,Y*i*v))f=i*t,X=f%3-1,Y=X*f%7-2,x.fillStyle=R(q=i*X,q*=X,q*=Y*Y*Y*q/i/X,i/q/q),v=.3**t/5

Sep 29 2021 2:03 PM UTC

}// 135/140

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Fog city from the sea #cityscape

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rep_movsd

function u(t) {

for(c.width=-1,Y=0;Y<6;Y+=.05)for(X=0;X<6;X+=.05)A=X+t,B=Y+.3,x.fillStyle=R(0,0,0,(S(B)-S(B*C(A+B))*C(A/B))%.4),x.fillRect(X*60,Y*60,6,6)

Sep 29 2021 10:47 AM UTC

}// 138/140

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Contours

u/donbright

doesn't repeat?
u/rep_movsd

As far as I can tell, no.
u/rep_movsd

It may have a very long period I think
u/Joachim

#noise

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firegodjr

remix of d/8508 by u/firegodjr

function u(t) {

v=c.width=400
with(x)for(i=40;i--;globalAlpha=i/40,fillRect(v/2-i*2*(1+S(t)),90-i*5,b=shadowBlur=i*10,b))shadowColor=R(g=S(t)*10+20,g,g)

Sep 29 2021 6:07 AM UTC

}// 136/140

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You take a peek inside. The square-hewn tunnel stretches endlessly. Enter the depths? Y/N #cavern

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danny@hille.dk

remix of d/23879 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󮬽󨼮󭽩󩍴󪌽󭼽󜜸󜌬󮌮󩭩󫍬󤽴󮝬󩜽󙽮󨝶󮜧󞽦󫽲󚍭󟜲󩜴󞽭󛜭󞽲󟜨󨜽󦌯󞜰󛜱󚜪󨜫󚍢󟝙󛼹󜌭󜜮󝌩󚭢󛍤󟜭󛬱󛍺󟝓󚍡󛽤󚭲󚽴󚬴󚜭󠼨󨬯󩌫󭌪󝼩󚝸󛭦󪝬󫍒󩝣󭌨󦌽󫜥󭼬󦜽󫜯󭼬󠼨󦌯󞜭󤼨󦜯󜼹󛝴󚬳󚝞󦜯󞜭󠼨󦌯󜼳󚽴󚬴󚜫󭌪󜼩󛽺󚼱󛍺󚬮󝌩󒬻`.replace(/u../g,'')))

Sep 25 2021 2:16 PM UTC

}// 135/140

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composite water ripple + refraction effect remix

u/danny@hille.dk

z=c.width=w=180,x.fillStyle='navy';for(m=2e4;m--;r=(a=X/90-1)*a+(b=Y/90-1.4)*b,d=-.1,z=S(a/d*r+t*4)-C(b/d+t*7))x.fillRect(X=m%w,Y=m/w,C(X/9-S(Y/39-t*3)^Y/9-C(X/33+t*4)+t*3)/z+1,z*.4)
u/Odog8

Looks like a snes demoscene-to-be!
u/danny@hille.dk

#water

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firegodjr

remix of d/23898 by u/firegodjr

function u(t) {

x.drawImage(c,0,k=t*60%2*9|0,1920,m=1071)
for(i=99;i--;)x.fillStyle=R(k?0:i*4,k?99+i:m,k?0:m),x.fillRect((1+(k?C:T)(t+i/20))*960,k?m:0,99,9)

Sep 21 2021 7:34 PM UTC

}// 140/140

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Rolling Hills

u/rep_movsd

WIndows XP wallpaper
u/rep_movsd

#landscape #nature
u/firegodjr

Didn't realize when making it, but it turns into an earthquake after a bit. Especially if the framerate dips
u/firegodjr

135: x.drawImage(c,0,u=u?0:9,1920,m=1071) for(i=99;i--;)x.fillStyle=R(u?0:i*4,u?99+i:m,u?0:m),x.fillRect((1+(u?C:T)(t+i/20))*960,u?m:0,99,9)

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firegodjr

function u(t) {

k=t*60%2|0
for(i=9;i--;)x.fillStyle=R(k?255:i*28,k?i*28:255,180),x.fillRect(960+S(t+i/2)*960,k?1071:0,50,9)
x.drawImage(c,0,k?0:9,1920,1071)

Sep 21 2021 6:39 PM UTC

}// 140/140

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Horizon

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firegodjr

function u(t) {

for(i=95;X=9*i--;x.fillRect((X+50-a*50)/(1-a*.1),99+Y+((Y-270)/160)*(S(X/277)*50),9,9))Y=540*(t%1),a=S(Y/160),x.fillStyle=R(0,X/4^t*300%256)

Sep 21 2021 3:29 PM UTC

}// 140/140

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