Dweets awesomed by u/geb

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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prplz

remix of d/9912 by u/prplz

function u(t) {

x.strokeRect(960+C(t*=3)*300,540+S(t)*300,T(t*=10)*9,T(t)*9)

Oct 4 2018 7:45 AM UTC

}// 60/140

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u/13thptr

nice sub-64 #abstract
u/13thptr

art
u/13thptr

*

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geb

remix of d/10222 by u/E-Mouse

function u(t) {

f=500
x.beginPath()
c.width|=
x.stroke()
for(i=f;--i;)
x.lineTo(C(k=i-t)*900+900,C(k=i^t/3)*f+f)
x.fill("evenodd")

Oct 2 2018 9:59 PM UTC

}// 114/140

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u/donbright

this stuff would be much cooler if i had a faster machine i think
u/Purpzie

are you saying that WE COULD HAVE DONE c.width|= ON ITS OWN LINE THIS WHOLE TIME INSTEAD OF c.width
u/Purpzie

*c.width|=0
u/magna

That's effectively c.width|=x.stroke()

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firegodjr

remix of d/9768 by u/firegodjr

function u(t) {

x.font='3em x'
for(m=j=32;j--;)for(i=63;i--;)x.fillText('◢◣◤◥'[Math.random()*4|0],i*m,j*m),x.fillStyle=`hsl(${S(t)*i*m+j*C(t+i)*m},99%,50%`

Oct 1 2018 7:57 PM UTC

}// 139/140

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Triangular Psychedelia

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Purpzie

remix of d/10149 by u/Purpzie

function u(t) {

for(i=64;i--;)x.fillStyle=`hsl(${i*5+t*30} 60%${S(t*3)*25+50}%`,x.fillRect(i*30,S(4*t+3*i)*99,20,99);x.drawImage(c,S(t)*5,5+(0|C(t))*5)

Oct 1 2018 7:40 PM UTC

}// 135/140

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geb

remix of d/10175 by u/yonatan

function u(t) {

eval(unescape(escape`景爨椽㉥㌻椭ⴻ⠡⠨浼天☭㐩⨨ㄼㄼ㰨夼㰲⨲⴮㘩☳㔹㐩⥼籸⹦楬汒散琨㤶〫䌨洩⩲ⱓ⠭洩⩲⼴⭴⨴㔰ⰹⰹ⤩戽䌨椯ㄶ⤬爽⠲〫戩⨵〪匨匨琩⨪⸵⤬砮晩汬却祬攽刨焽㌰〫截⨳⨹ⵓ⡭㵩⼳㈰⤪ㄸ〬焯㈩ⱙ㵴⨳ⴴ`.replace(/u(..)/g,"$1%")))

Oct 1 2018 7:03 PM UTC

}// 140/140

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the backsite of a pumpkin

u/joeytwiddle

NSFW

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donbright

remix of d/10189 by u/QXY

function u(t) {

c.width=720
for(i=80;i--;)for(j=40;j--;){I=i-t*t
J=j-20
B=I*I+J*J
I=i-40
G=I*I+J*J
x.fillStyle=R(B%G%256,0,G%B%256)
x.fillRect(i*9,j*9,9,9)}

Oct 1 2018 6:19 AM UTC

}// 140/140

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black holes crash, flip universe colors

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ellisk1

function u(t) {

c.width|=q=.2992;x.translate(960,540);for(i=0;i<329;i++)x.rotate(q+(i%22?0:q/2)+(i<1)*t),x.fillRect(a=((i/22|0+t/2)+2*t)%15*50,a,w=a**.75,w)

Sep 30 2018 11:45 PM UTC

}// 140/140

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Changing Circular Patterns

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Xen

remix of d/10189 by u/QXY

function u(t) {

for(c.width|=i=99;i--;x.stroke())x.lineWidth=i,x.beginPath(),x.arc((o=i&1?-99:99)*2*C(t)*S(t*.2)+960,o*5*S(t*3)*C(t)+520,i**2,0,7)

Sep 30 2018 9:57 PM UTC

}// 130/140

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QXY

function u(t) {

c.width|=0;for(i=69;i--;){x.lineWidth=i,x.beginPath(),x.arc((o=i&1?-99:99)*2*C(t)*S(t*.2)+960,o*.9*S(t)*C(t*.7)+520,i**1.76,0,7),x.stroke()}

Sep 30 2018 7:37 PM UTC

}// 140/140

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boring interference :)

u/Xen

i love it :)
u/donbright

fascinatin
u/donbright

i was looking up Young's double slit - this reminds me of his original drawings he made in the early 1800s, https://bit.ly/2OsA1mh

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Purpzie

function u(t) {

x.strokeStyle=`hsl(${1e3+t*50} 99%50%)`;x.beginPath();for(i=10;i--;)x.arc(1e3+S(t/2*i)*500,575+C(t*i/2)*500,0,0,2*Math.PI);x.stroke()

Sep 29 2018 1:25 AM UTC

}// 134/140

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cycle of life

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