Dweets awesomed by u/rep_movsd

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: #Food

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Xen

function u(t) {

for(Z=i=32;i--;x.fill(x.arc(960,540,Z+i*Z-C(i*t/9)*Z,i+t*2,i+t*2+2)),x.stroke())x.beginPath(x.fillStyle=`hsla(${i*Z^t*99},90%,50%,.01)`)

Jul 31 2018 9:43 PM UTC

}// 136/140

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Show more comments…
u/DataMeta

Amaaazing style!
u/joeytwiddle

Beautiful! #colors #spiral
u/magna

#toon
u/magna

THIS IS CRAZY!
u/fujimotos

This color tone is so awesome. Reminds me metallic oil.
u/sigveseb

Holy shit so nice :)
u/iverjo

Yes!
u/lionleaf

Beautiful!
u/joeytwiddle

#oil
u/Joachim

#art
u/joeytwiddle

#shiny #lush #color

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geb

remix of d/8963 by u/Agnes

function u(t) {

F=n=>{return T(n*n)<22/7}
x.drawImage(c,0,l=10)
for(j=214;j--;)x.fillStyle=F(j^t*60)?"#000":"#666",x.fillRect(j*l,0,l,l)

Jul 30 2018 2:53 PM UTC

}// 120/140

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tan(n*n) < PI

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Agnes

remix of d/8945 by u/firegodjr

function u(t) {

F=n=>{return C(n)*C(n)+S(n)*S(n)<1}
x.drawImage(c,0,l=10)
for(j=214;j--;)x.fillStyle=F(j^t*60)?"#0f0":"#000",x.fillRect(j*l,0,l,l)

Jul 28 2018 8:15 PM UTC

}// 130/140

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Visualising numbers for which sin(x)*sin(x) + cos(x)*cos(x) < 1.

u/donbright

wait wait wait wait wait.... sin^2 + cos^2 = 1. im so confused. is this about the imprecision of floating point arithmetic?
u/donbright

this is absolutely fascinating... set it ==1 or >1 gives different patterns.
u/donbright

also fun... return S(n)/C(n)==T(n)

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ifrias

function u(t) {

with(x)for(i=n=23;--i;)F=(f,m)=>Math.abs(m-t*.7*f(i*1.5/n)*2e3%(2*m)),font='100px a',fillText('🎸'.substr((i%3)*2,2),F(C,1920),F(S,1e3))

Jul 13 2018 1:29 PM UTC

}// 135/140

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fujimotos

function u(t) {

c.width=320
for(j=12;j--;)for(i=90;i--;)
x.fillStyle=`hsla(99,${i}%,${i}%,.9`,
x.fillRect(S(t+i/30+S(j))*20+20*j,S(t*5+i/10)+i*2,i/2,i/2)

Jul 4 2018 1:09 PM UTC

}// 137/140

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Weird Plants

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keithclark

remix of d/8799 by u/keithclark

function u(t) {

for(c.width=240,Z=5;Z>0;Z-=.1)for(Y=X=-60;X<60;x.fillRect(120+X++/Z*9,45-Y/Z,1/Z*24-Z,99))x.fillStyle=R(Y-=7*C(X*.4^Z+t*6),Z*50-Y,-Y/87<<8)

Jul 3 2018 11:50 PM UTC

}// 139/140

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This one has water - not flat unfortunately. Had to trade off the pseudo-shading to fit the colour change int

u/zanella

OH MY GOD! I stayed out of Dwitter for a couple of days, and suddenly it has become Shader Toy! :)
u/hollo47

This is so good! #landscape
u/sigveseb

with water! #water
u/Cloud

WOOOOOOOOOOOOOOOOOOOOOOOW!!!!
u/rep_movsd

Underrated AF

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micahcowan

remix of d/8786 by u/alien

function u(t) {

c.width|=t?1:u=s=0
s-=s<=0?s:2e-4
a=9
b=a*9
onclick=e=>s+=.05
x.setTransform(-(m=9*S(u+=s)),n=9*C(u),n,m,a*b,b*5)
x.fillRect(-a/2,-b/2,a,b)

Jul 1 2018 5:22 AM UTC

}// 139/140

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Added friction to u/alien's original. #fidgetSpinner

u/alien

:D !!!! oh wow!!!!! that's so cool.

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Agnes

function u(t) {

with(x)for(scale(s=t?1:100,s),fillRect(0,0,Q=255,Q),i=9;i--;fillStyle=R(Q*=!!i,Q,Q,.02))fillRect(4+i+S(t)*3,4-T(T=Math.random),.5,2*(1+T()))

Jun 27 2018 8:40 AM UTC

}// 140/140

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Wonky spooky default

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firegodjr

remix of d/8750 by u/davidsharp

function u(t) {

c.width|=0
x.font="100px a",x.fillText([...'🕛🕐🕑🕒🕓🕔🕕🕖🕗🕘🕙🕚'][((t*10)|0)%12],1e3+800*S(-t),550+450*C(t))

Jun 26 2018 8:15 PM UTC

}// 101/140

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Golfed now a bit :)

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firegodjr

remix of d/8739 by u/firegodjr

function u(t) {

with(x)for(fillRect(0,0,Y=2e3,Y),k=Y;k--;)arc(960,540,j=550-k/4|0,v=k%4*3.14/2+S(t*3-Y/j)+C(t),v+99/k),stroke(),beginPath(fillStyle="#fff1")

Jun 26 2018 7:37 PM UTC

}// 140/140

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u/rep_movsd

Cybernetic rose
u/rep_movsd

#underrated

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