Top dweets by u/@no_identd

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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@no_identd

remix of d/17539 by u/@no_identd

function u(t) {

v=45
for(l=499;l--;)d=(l*t/9)%v*v,x.fillStyle=`hsl(${t*l-l+d},80%,65%)`,x.fillRect(960+S(r=S(t-1/d)+l)*d,0+C(r)*d,v,v)

Feb 9 2020 9:37 PM UTC

}// 118/140

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Computer, remove unnecessary numbers and zoom in on the lower half of the image

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@no_identd

remix of d/5033 by u/Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=2.2142975*frame;r=8*frame**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Jan 17 2018 3:43 PM UTC

}// 139/140

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https://link.springer.com/article/10.1007/s0… Golden *morphic* angle for Parabola. 126.869896 if you want degrees. Both are the best *and* shortest single float approximation respectively.

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@no_identd

remix of d/4509 by u/ben

function u(t) {

function v(a,b,g,r){if(r>1){x.fillRect(a+=r*S(g),b-=r*C(g),.1,1)
v(a,b,g-1+C(t),r*=.7634541)
v(a,b,g+.1+S(t),r)}}c.width=540
v(250,270,0,80)

Jan 17 2018 2:00 PM UTC

}// 140/140

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@no_identd

remix of d/6354 by u/@no_identd

function u(t) {

c.width^=0
_=96
for(i=0;i<_;i++)for(j=0;j<_;j++){r=t+i+j
w=r/.5698403
$=S(r)*_
x.fillStyle=R(w*64,S(w),w*4)
x.fillRect(i*_-$/2,j*_-$/2,$,$)}

Jan 22 2018 7:57 PM UTC

}// 140/140

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u/sigveseb

Very stylish

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@no_identd

remix of d/6447 by u/DirtyDan

function u(t) {

c.width=1920
for(i=b=540;i>0;i-=.5)x.beginPath(),x.ellipse(a=960+i*S(t+i*2.5),((i**2.214297)/i+i+200)/2,i/b*200,i/b*50,0,0,44/9),x.stroke()

Jan 25 2018 1:56 AM UTC

}// 139/140

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This one has an illusion built in. You can mentally switch the rotation of what you see, which you may perceive as a 3D shape.

u/@no_identd

Also, if you add x.globalCompositeOperation='xor', like u/DirtyDan did here: https://www.dwitter.net/d/6430, you can STILL mentally flip it.
u/@no_identd

Actually, I've noticed, u/DirtyDan's original of this also has this illusion built in!

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@no_identd

remix of d/6363 by u/Knifa

function u(t) {

_=48
for(i=0;i<_;i++)for(j=0;j<_;j++){r=t+(i-_)*(j-_/2)/_
$=T(r%i)
x.fillStyle=R($*255,S(r^5)*255*$,j**$^7)
x.fillRect(i*_,j*_-$*_,_*2,_*2)}

Jan 22 2018 10:58 PM UTC

}// 140/140

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@no_identd

remix of d/6331 by u/Xen

function u(t) {

v=23
for(l=499;l--;)d=(l*t/9)%v*v,x.fillStyle=`hsl(${t*l-l+d},99%,65%)`,x.fillRect(960+S(r=S(t-d/126.869896)+l*1.3324789)*d,540+C(r)*d,v,v)

Jan 22 2018 6:22 PM UTC

}// 139/140

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There's no sense in using those numbers there in that way. But I tried it anyway and damn.

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@no_identd

remix of d/6364 by u/@no_identd

function u(t) {

_=48
for(i=0;i<_;i++)for(j=0;j<_;j++){r=t+(i-_)*(j-_/2)/_
$=S(r)
x.fillStyle=R($*255,t+S(r^5)*255*$,j**$^7)
x.fillRect(i*_,j*_-$*_,_*2,_*2)}

Jan 22 2018 10:59 PM UTC

}// 140/140

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u/joeytwiddle

Waves look good for surfing ... in a lava-proof wetsuit

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@no_identd

remix of d/6349 by u/@no_identd

function u(t) {

v=23
for(l=499;l--;)d=(l*t/9)%v*v,x.fillStyle=`hsl(${t*l-l+d},99%,65%)`,x.fillRect(960+S(r=S(t-1/d/0.8537972)+l*1.3324789)*d,540+C(r)*d,v,v)

Feb 9 2020 9:12 PM UTC

}// 140/140

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I have improved the hypnosis spiral. Pray that I don't improve it further.

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@no_identd

remix of d/15719 by u/@no_identd

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>256.^(_(t)%t)));a=1.3324789*frame;r=8*frame**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Sep 16 2019 7:47 AM UTC

}// 140/140

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Throwback #2

u/@no_identd

Throwback #3
u/@no_identd

Erm, no.

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