Random dweets | Dwitter

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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magna

remix of d/33397 by u/rodrigo.siqueira

function u(t) {

for(c.width%=i=2e4;X=S(i*i+t),Y=S(i),Z=S(i**S(t))**9,V=C(t)*X-S(t)*Z,W=S(t)*X+C(t)*Z-20,i--;)x.fillRect(960+6e3*V/W,6e3*Y/W-3e4/W-1e3,4,4)

Feb 23 2025 12:36 AM UTC

}// 138/140

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Collapsible cube

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lowpoly

remix of d/4348 by u/lowpoly

function u(t) {

i=2e3,c.width=i,x.fillRect(0,0,i,i),x.fillStyle='#fff';for(p=i;p--;)d=p/500,x.fillRect((p+d*50*(t+i))%i,(''+p*T(p)/i).substr(-3)/999*i,d,d)

Dec 28 2017 11:00 AM UTC

}// 139/140

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Scrolling stars that look more like stars :) Now to add sine functions or something.

u/Xen

x.fillRect(0,0,c.width=p=i=2e3,i)
u/lowpoly

yeah, i usually do something like i=c.width=2e3 now :P

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23_Skidoo

remix of d/12182 by u/23_Skidoo

function u(t) {

for(s=32,i=3e3;i--;x.fillStyle=`hsla(${S(i/9)*360},50%,${50+S(i/2+t)*50}%`)x.fillRect(i%60*s,(i/60-(t*5)%60)*s-s,s,s)

Feb 6 2019 1:13 AM UTC

}// 117/140

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anotherkitten

function u(t) {

p=frame;for(y=99;y;y--){x.fillStyle=`hsla(${p/6},50%,50%,.2)`;x.fillRect((p=p+(z=Math.random)()*7)%2e3-y,z()*1150-50,z()*99,z()*99);frame=p}

Sep 14 2018 6:26 PM UTC

}// 140/140

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when you are rubbing your eye and see the rainbow

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katkip

function u(t) {

f=(X,Y,s,r)=>{if(s>.3)f(X+s*S(r%2?r:-r),Y+s*C(r%2?r:-r),s/2,r*4)
else x.fillRect(X,Y,1,1)}
for(i=9999;i--;)f(960,540,666,t*i)

Jul 1 2020 11:15 AM UTC

}// 125/140

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#fractal

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Georges-Abitbol

remix of d/18356 by u/Georges-Abitbol

function u(t) {

c.width=1920
for(i=-4355;i<4355;i++)
x.fillRect(960+C(t*i/500)*250*(1+C(i/200)),540+S(t*i/500)*250*(1+C(i/200)),5,5,1)

Apr 20 2020 7:01 PM UTC

}// 118/140

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amator

function u(t) {

for(c.width|=i=11;i--;) {
x.strokeRect(25+i*(k=100)+(d=S(t)*360+360),400,k,320)
i%7&&(i+4)%7?x.fillRect(i*k+d,400,k/2,200):0
}

Jul 18 2018 3:37 PM UTC

}// 126/140

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u/iverjo

#piano
u/micahcowan

#default

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danny@hille.dk

remix of d/19821 by u/danny@hille.dk

function u(t) {

f=(X,Y,n=1.5)=>Y*Y>n?n:f(4*X*Y-.5,Y*Y-X*X,n+1);for(m=i=980;i--;x.fillRect(t*m/2%m*2,i*3,17,3))x.fillStyle=`hsl(${K=f(i/m,C(t)/3)*8},99%,50%`

Sep 18 2020 4:09 PM UTC

}// 140/140

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Weather radar remix

u/danny@hille.dk

.. or Sin()-ematic fractal viewer (never mind that I used coSinus)
u/danny@hille.dk

(original dweet: d/19818 by u/rodrigo.siqueira)
u/rep_movsd

Dormammus holiday realm :)
u/danny@hille.dk

#fractal

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ClayCowgill

function u(t) {

f=t*60;for(j=1080;j--;x.fillRect(f,j,1,S(k),x.fillStyle=R(f/8,f%8)))for(a=f/500-2,b=j/500-1,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b-.8,b=2*a*b+.15

Mar 2 2017 11:58 PM UTC

}// 140/140

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TGY

remix of d/23710 by u/TGY

function u(t) {

X=S(t)
Y=C(t)
for(c.width=a=50;a--;)
for(y=29;y--;x.fillRect(a,y,1,1))
x.fillStyle=R(g=50+12*S(((y-14-Y)**2+(a-25-X)**2)**.5/6-t*3),g*3,4*g)

Sep 5 2021 7:49 PM UTC

}// 140/140

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#windows11