Dweets awesomed by u/graue

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

function u(t) {

t?onmousemove=(e)=>{Z=e.x/99,W=e.y/99}:Z=W=3
for(i=c.width|=0;--i;x.fillStyle=R(F,255*S(i)))
x.fillRect(910+i*S(F=t*W+i/Z),490+i*C(F),99,99)

Apr 19 2019 4:36 PM UTC

}// 140/140

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#SpiralMachine Use your mouse to play with it! (X axis is twist, Y axis is speed)

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username

remix of d/13281 by u/katkip

function u(t) {

for(c.width|=i=699;i--;)x.fillRect(i*3,540+S(S(i/29+S(i/48^t*9)))*333,19,19)

Apr 19 2019 3:00 PM UTC

}// 76/140

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does not look smooth, is smooth #60fps

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bandaloo

function u(t) {

a=1920;c.width=a;d=(i)=>{x.fillRect(i,536+C(i+t)*50,32,8)};for(i=0;i<a;i+=32){x.fillStyle=R((1+C(i))/2*255,0,155);for(j=0;j<3;j++)d(i+j)}

Apr 19 2019 12:32 AM UTC

}// 137/140

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simple helix

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KilledByAPixel

function u(t) {

for(i=1080;i--;)x.fillRect(i^9*i/t,i,1,1)

Apr 18 2019 2:27 AM UTC

}// 41/140

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Super Tiny Fractal Part 2

u/DataMeta

#dither #fractal
u/joeytwiddle

Very nice #tiny
u/username

it is not a fractal though
u/KilledByAPixel

It is though... Also interesting if you change the ^ to a | or & it becomes an ordinary sierpinski triangle (also a fractal).
u/username

I agree with the Sierpinski triangle, but the other one is not a fractal on my screen.

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katkip

function u(t) {

for(c.width|=i=699;i--;)x.fillRect(i*3,540+S(S(i/29+S(i/48+t*9)))*200,19,19)

Apr 17 2019 1:25 PM UTC

}// 76/140

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crawling #sine

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katkip

remix of d/13279 by u/katkip

function u(t) {

for(c.width|=i=999;i--;)x.beginPath(),x.arc(950+S(i/6+t/5)*i/2,540+C(i/6+t/5)*i/2,s=C(i/99+S(i/2+9*C(t))*C(t)*3)*9+10,s,0,7),x.fill()

Apr 17 2019 1:04 PM UTC

}// 133/140

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#beesandbombs and golfed

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katkip

function u(t) {

for(c.width|=i=8;i--;x.beginPath())x.rect(400+i*100+S(t)*300,400,50,200),x.arc(425+i*100+S(t)*240,500+C(t+i*3)*100,35,0,7),x.fill("evenodd")

Apr 17 2019 12:46 PM UTC

}// 140/140

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#default with small inverters floating

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pavel

function u(t) {

eval(unescape(escape`景爨椽挮睩摴桼㵰㵃⡴⤻椭ⴻ砮晩汬剥捴⠹㘰⵳⼲⬨椥ㄲⴶ⤪㔴〯稬⡺⭡⩓⡴⤭截瀩⨵㐰⽺⵳⼲ⱳⱳ⤩愽椯ㄲ┱㈭㙼〬戽椯ㄴ㐭㙼〬稽ㄫ愪瀫截匨琩ⱺ⨽稾⸴ⱳ㴱㔰⽺⽺;`.replace(/u(..)/g,"$1%")))

Apr 17 2019 7:06 AM UTC

}// 123/140

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Xen

remix of d/13257 by u/Xen

function u(t) {

for(c.width=(Z=50+50*C(t/.7))*19,i=9,x.fillRect(0,0,2e3,2e3);i--;)x.clearRect(Z*4+i*Z+S(t)*Z*3,Z*4,Z/2,Z*2)

Apr 16 2019 11:58 PM UTC

}// 107/140

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#default Res-Pulse inverted

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robbyg

remix of d/13250 by u/robbyg

function u(t) {

for(c.width|=y=27;x.fillStyle=['#47a','#ec2','#d66'][--y%3];)for(i=450;i--;)x.fillRect(z=680+i+y+C(y/4-4*t)*200,100+y*33+S(z/12-6*t)*18,6,7)

Apr 16 2019 9:03 PM UTC

}// 140/140

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Publishing the version with help from u/pavel and u/joeytwiddle because it's pretty great.

u/robbyg

#beesandbombs

dwitter.net | graue (1312)