Dweets awesomed by u/davidsharp

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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Xen

remix of d/14716 by u/username

function u(t) {

with(x)for(k=i=2e3;i---99;beginPath(fill(arc((i**3+p)%2e3,(i*i+p)%k,k/(i/(9+S(p)*8)),0,7))))fillStyle=`hsla(${i+(p=t*i)},99%,60%,.01`

Jun 24 2019 7:14 AM UTC

}// 133/140

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rainbow clouds

u/Xen

#waitforit
u/joeytwiddle

Variations: change i*i+p to i**t+p (fine) or i^p+t (coarse)
u/joeytwiddle

On iOS, slay the grey with 65% rainbow
u/Xen

#clouds #rainbow

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Jezza

remix of d/13497 by u/Jezza

function u(t) {

c.width|=0;for(Y=1188;Y-=27;){x.moveTo(0,Y);for(X=1;X<13;X++)x.lineTo(X*160+(X&1?C(2*t+Y/108)*120:0)*(X&2?1:-1),Y-(X&1?108:0));x.stroke()}

Apr 27 2019 9:20 AM UTC

}// 138/140

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Tweak. (via https://old.reddit.com/r/generative/comments…)

u/aleamb

fucking awesome!
u/Purpzie

Shaved 10 characters but it's super laggy: for(c.width|=0,i=572;Y=(0|i/13)*27,X=(572-i)%13,i--;x.stroke())x.lineTo(X*160+(X&1?C(2*t+Y/108)*120:0)*(X&2?1:-1),Y-(X&1?108:0))
u/Purpzie

Less laggy version that's 4 characters shorter instead of 10: for(c.width|=0,Y=1188;x.moveTo(0,Y),Y-=27;x.stroke())for(X=0;X++<13;)x.lineTo(X*160+(X&1?C(2*t+Y/108)*120:0)*(X&2?1:-1),Y-(X&1?108:0))

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davidsharp

remix of d/11923 by u/davidsharp

function u(t) {

c.width|=0;k=100;x.font=k+'px a';T='hello•world•'
for(i=0;++i<k;)for(j=0;++j<11;)x.fillText(T[i%12],-2e3+(k*i)+(t*k)*(j%2||-1)%(k*12),k*j)

Jan 23 2019 1:11 PM UTC

}// 138/140

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davidsharp

function u(t) {

c.width|=0;k=100;x.font=k+'px courier'
for(i=0;i<22;i++)for(j=0;j<22;j++)x.fillText('?',-k+(k*i)+(t*k)*(j%2||-1)%k,k*j)

Jan 23 2019 1:02 PM UTC

}// 119/140

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pavel

remix of d/11920 by u/pavel

function u(t) {

with(x)for(c.width|=j=90;--j;stroke())for(Z=j/2-3*t%.5,lineWidth=1+50/Z/Z,beginPath(i=7);i--;)arc(960,540,1e3/Z,a=(1.257*i+Z/7-t)%6.283,a)

Jan 23 2019 2:48 AM UTC

}// 138/140

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u/joeytwiddle

I like how the middle is going inwards, paradoxically

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mxfh

remix of d/2442 by u/mxfh

function u(t) {

c.width|=b=50
h=S(t)
for(e=6.283;e>0;x.lineTo(d*C(e-=.01)+h*(C(e)+T(e/3+t/T(e)))+960,d*S(e+S(t)/9)-h+540))d=420
x.fill("evenodd")

Jan 22 2019 11:44 PM UTC

}// 129/140

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u/Xen

NICE! :-)
u/katkip

Haha
u/magna

#glitch
u/mxfh

this one doesn’t even need the fillrule. Was just looking into other cycloids and Lissajous figures, only to end up with a circle.

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮁛𩰽𙱦𪑬𫁒𩑣𭀧𧐨𜀬𜀬𨰮𭱩𩁴𪀽𚁷🐹𝠰𚐪𜠬𪐽𭰪𜰩𞱩𛐭𞱸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𛠱𝐪𪑽𛀹𞐥𛀶𜀥𨀬𮁛𩱝𚁷𚰨𤰨𬐽𪐯𜰸𜐫𠰨𭀯𜠩𚠳𚐪𦠩𛰨𦠽𠰨𬐩𚡚𛐷𚐪𭰬𝐴𜀫𤰨𬀩𚡶𛱚𚡷𛁳🐱𚰲𜀰𛱚𛱚𛁳𚐩𦠽𠰨𬀽𪐯𝠳𛠶𝰫𭀩𚠨𭠽𪐥𞀯𞀫𜐩𚰳`.replace(/u../g,'')))

Jan 22 2019 12:24 AM UTC

}// 140/140

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for(x[g='fillRect'](0,0,c.width=(w=960)*2,i=w*3);i--;x.fillStyle=hsl(${.15*i},99%,60%,x[g](w+(S(q=i/381+C(t/2)*3)*Z)/(Z=C(q)*Z-7)*w,540+S(p)*v/Z*w,s=1+200/Z/Z,s))Z=C(p=i/63.67+t)*(v=i%8/8+1)+3

u/cantelope

testing out the new compressor :D
u/metamero

cool!!
u/katkip

I like that there is a cat and a mouse emoji in your code
u/iverjo

#colorful

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katkip

remix of d/11885 by u/katkip

function u(t) {

seed=4
c.width*=1;for(i=43;i--;)for(j=71;j--;)
x.fillRect(j*30+S(i/seed+t)*100-100,i*30+C(j/seed+t)*100-100,30,30)

Jan 19 2019 6:50 PM UTC

}// 114/140

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It is going up. To go down, change seed=0.02

u/katkip

Haha, this got 20 likes
u/Xen

seed=5+C(t)*2
u/katkip

The perfect straight one is seed=.0123
u/katkip

44 likes om!
u/vain

Very cool and smooth looking fx

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f8f82804

remix of d/9721 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;Z<1.6&&x.fillRect(960+800*X/Z,540+800*Y/Z,s=32*(1.6-Z),s)){ϕ=i/600;θ=i-t/5+ϕ*4.5;X=S(θ)*S(ϕ);Y=C(ϕ);Z=C(θ)*S(ϕ)+2;}

Jan 2 2019 7:32 PM UTC

}// 136/140

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#perspective #sphere #stripe

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Undefined

remix of d/9332 by u/BirdsTweetCodersDweet

function u(t) {

for(i=2e3;i--;x.fillStyle=`hsl(${i&5|frame},100%,50%)`)x.fillRect(i,0,1,5);x.drawImage(c,0,5)

Jan 2 2019 2:14 PM UTC

}// 93/140

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A nice little texture...

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