Dwitter - javascript demos in 140 characters

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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katkip

function u(t) {

for(i=0;i<300;i++)h=(i+t*t/2)*28%360,x.fillStyle=`hsl(${t+h/3},99%,50%)`,x.fillRect(i%20*99,~~(i/20)*99,h*t,t*h)

Aug 4 2018 10:40 AM UTC

}// 112/140

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Idea from d/1787

u/lionleaf

Cool! Shy not post as a remix?
u/lionleaf

Why*
u/katkip

Oh good point.

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katkip

remix of d/9153 by u/Xen

function u(t) {

for(x.fillRect(0,0,Z=2e3,i=Z);i--;x.fillRect(i+C(t)*t,t*500*S(i+t*2),9,39))x.fillStyle=R(t*t+i%255,i*S(i/t),9e1/t,1/t)

Aug 7 2018 5:58 PM UTC

}// 118/140

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Xen

remix of d/9149 by u/katkip

function u(t) {

for(x.fillRect(0,0,Z=2e3,i=Z);i--;x.fillRect(i,500+500*S(i+t/2),9,39))x.fillStyle=R(t*i%255,i*C(i^t),i,.1)

Aug 7 2018 5:07 PM UTC

}// 106/140

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aurorafall

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Xen

remix of d/9142 by u/katkip

function u(t) {

for(i=t*799%1e3|0;i--;x.fillRect(i*2,500+200*C(t),69*S(t),69*C(t)))x.fillStyle=`hsla(${i*t%i},99%,30%,.01)`,x.strokeRect(0,0,i*5,i*5)

Aug 6 2018 3:49 PM UTC

}// 133/140

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#remix_chain

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DataMeta

remix of d/1428 by u/irregularshed

function u(t) {

for(i=1920;i--;)v=(t*60)%1080,l=(i^v)%256&frame,
x.fillStyle=R(l,l/4,l*3),x.fillRect(i,v,1,1)

Aug 4 2018 6:59 PM UTC

}// 93/140

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Simple test inspired by firegodjr's bitwise dweets

u/fujimotos

#scanline #slow_render

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stiaje

remix of d/9115 by u/richev

function u(t) {

c.width|=0
x.stroke()
x.translate(960,540)
h=l=>x.fillRect(-5,-50,9,l)
r=a=>x.rotate(a)
r(7*t+3)
h(500)
r(t/17-t*7+7)
h(350)

Aug 5 2018 11:16 AM UTC

}// 124/140

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Golfed by removing a lot of accuracy.

u/richev

nice!

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Xen

remix of d/9130 by u/katkip

function u(t) {

x.globalCompositeOperation=`xor`
for(Z=1e3,i=99;i--;x.fillStyle=`hsla(${99*t},99%,50%,.9)`)
x.fillRect(Z+Z*C(i^t),500+Z*S(i+t*2),i*C(t),i)

Aug 5 2018 8:10 PM UTC

}// 138/140

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u/katkip

#remix_chain
u/DataMeta

I love the colors, Xen
u/Xen

Cheers mate :-)

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katkip

remix of d/9127 by u/Xen

function u(t) {

for(Z=i=1e3;i--;x.fillStyle=`hsla(${i*t},99%,50%,.08)`)
x.fillRect(Z+Z*C(i),9e2+Z/T(i),i/(t*5),i-t*i),x.rotate(t/i)
t||x.translate(960,540)

Aug 5 2018 7:36 PM UTC

}// 139/140

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If you concentrate on the middle, your intelligence will raise at 420%

u/katkip

#remix_chain

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Xen

function u(t) {

for(Z=i=1e3;i--;x.fillStyle=`hsla(${i+t*99},90%,50%,.1)`)x.fillRect(Z+Z*C(t-i),500+500*S(t),9,9)

Aug 5 2018 6:54 PM UTC

}// 96/140

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u/lionleaf

#remix_chain first dweet

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katkip

remix of d/9083 by u/katkip

function u(t) {

F=n=>{return(C(n)^T(n/13.37)*t)%3-1<1};x.drawImage(c,0,l=9);for(j=214;j--;)x.fillStyle=F(j^t*60)?"#362":"#dedbef",x.fillRect(j*l,0,l,l)

Aug 5 2018 7:12 AM UTC

}// 135/140

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The ruins of the temple

u/lionleaf

Looks like a PCB