Top dweets of all time

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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andrea270872

remix of d/12689 by u/andrea270872

function u(t) {

c.width|=q=25
p=q*q*t%2e3
D=(c,d)=>4e3/((z-c)**2+(w-d)**2)**.5
for(i=0;i++<q*q;)x.fillRect(z=~~(i/q)*95,w=i%q*60,m=D(p,450)+D(800,p),m)

Mar 21 2019 2:47 PM UTC

}// 135/140

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2 swimming magnets (ver2)

u/f8f82804

#halftone #dither

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rsrsrs

remix of d/6711 by u/nickd3000

function u(t) {

for(i=0;i<32;i++)g=100*t*(i%3+1),x.fillStyle='hsl('+g+',99%,55%)',x.fillRect(80*i,5,80,20);x.drawImage(c,-5,4,1930-T(t*t*4)*5,1080+5);

Mar 19 2019 1:25 AM UTC

}// 134/140

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glitch

u/magna

#glitch

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rodrigo.siqueira

function u(t) {

for(H=300,c.width|=i=2e3;i--;)A=i<H?(B=1,0):i<600?(B=-.2,1):i<900?(B=0,-.2):B=0,x.fillRect(i,600-(2*t&1)*(A-A*(μ=.5-C(i%H/94)/2)+B*μ)*H,6,6)

Mar 18 2019 5:57 PM UTC

}// 140/140

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Pulses of a single neuron in a Spiking Neural Network (SNN) using cosine interpolation with 4 intervals: depolarization (rising curve), repolarization (falling curve), refractory (recovery period) and resting potential (continuous line). #neural #ai

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robotman_

function u(t) {

f=_=>S(a)+S(a/3)+S(a/2)
h=2.4
for(c.width^=i=0;i<9;i++)a=t+i*4,x.fillRect(960+960/h*f(a),0,5,1080),x.fillRect(0,540+540/h*f(a),1920,5)

Mar 15 2019 11:48 PM UTC

}// 134/140

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Input your own wave function for f and it's maximum m

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andrea270872

function u(t) {

$=t*97%11*180
H=t*500%1080
x.fillStyle=R(t*10%255,$/4,$/2,.4)
x.setTransform(1,0,0,1,$,H),x.rotate(t/3)
x.fillRect(0,0,50,50)

Mar 9 2019 3:21 PM UTC

}// 125/140

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gradient crystal scales ver2 (shorter thanks to a great suggestion)

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danny@hille.dk

function u(t) {

for(c.width|=i=0;i<66;)x.fillRect(999+S(t+(++i*6))*99,i*17,99,17)

Mar 7 2019 8:46 PM UTC

}// 65/140

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wind spiral

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pavel

remix of d/12604 by u/pavel

function u(t) {

for(a=q=k=2e3;r=k--/q;x.fillRect(960+500*i,540+500*r*S(a),9,9))i=r*C(a+=t/r),x.fillStyle=R(g=400*((d=1-r*r)**.5*i*S(t)+(d-.3)*C(t))**2+50,g)

Mar 6 2019 10:25 AM UTC

}// 140/140

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qm3ster

function u(t) {

t||(a=0)
r=0
x.fillStyle=`hsl(${a|0},100%,50%,.15)`
x.beginPath()
while(r/100<9-t){x.lineTo(S(a)*r+960,C(a)*r+540)
a+=.03
r+=9}x.fill()

Mar 5 2019 9:39 PM UTC

}// 136/140

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Deterministic flower thing; Mess with a and r increments.

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rodrigo.siqueira

remix of d/12319 by u/rodrigo.siqueira

function u(t) {

c.width|=X=Y=Z=1
for(i=5e4;i--;)x.fillStyle=R(i/99,i/320,Z+=(X*Y-Z)/99),X+=(Y-X)/9+S(t*8),Y+=X*(28-Z)/99,x.fillRect(960+X*43,1180-Z*24,3,8)

Mar 5 2019 8:51 PM UTC

}// 139/140

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Color Lorenz Attractor - Chaos Butterfly variations #attractor #lorenz

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Xen

function u(t) {

for(c.width|=i=9;i--;)for(j=22;j--;)
x.fillRect(400+i*100+S(t+j/29)*300,400+j*9,60,9)

Feb 27 2019 2:33 PM UTC

}// 85/140

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#default #wave