Top dweets by u/iverjo

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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iverjo

remix of d/395 by u/iverjo

function u(t) {

for(w=i=960;i--;)x.fillStyle=R(a=w*!i,a,a,.1+i),x.fillRect(!a*(w+w*S(d=i/42)*S(b=20.9995*i+t)),!a*(530+530*C(d)),s=19/(S(d)*C(b)+1.3)+2*a,s)

Aug 1 2016 2:36 AM UTC

}// 140/140

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iverjo

remix of d/387 by u/iverjo

function u(t) {

for(i=1e3;i--;)x.fillStyle=R(a=255*!i,a,a,.05+i),x.fillRect(!a*(960+800*S(b=i/42)*S(i%T(t+b)+t)),!a*(540+460*C(b)),s=19/(S(b)*S(t)+2)+8*a,s)

Jul 31 2016 11:50 PM UTC

}// 140/140

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A combination of http://dweet.dwitter.net/id/387?autoplay=1 and http://dweet.dwitter.net/id/385?autoplay=1

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iverjo

remix of d/379 by u/iverjo

function u(t) {

c.width=960;for(i=1e3;i--;)b=T(t+i/42),s=7/(S(i/42)*S(t)+2),x.fillRect(480+400*S(i/42)*S(i%b+t),270+230*(C(i/42)),s,s)

Jul 29 2016 4:59 PM UTC

}// 118/140

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iverjo

remix of d/279 by u/iverjo

function u(t) {

c.width=500;x.translate(250,95);M=1.5*S(t*2);for(j=66;j--;)x.translate(9,0),x.rotate(M*.1+(1-M)*((j+8)%21?0:2.1)),x.lineTo(0,0),x.fill()

Jul 27 2016 2:30 PM UTC

}// 136/140

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iverjo

function u(t) {

for(i=8e3;i--;)s=149/(i+400),c=S(8e3*s+t*7),x.fillStyle=R(9,c=99*c,99+c),x.fillRect(2e3*(T(i/9)+s*t)%2e3,1440-133*Math.log(i),s=99*s,s)

Jul 24 2016 11:40 PM UTC

}// 135/140

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This was my first attempt at creating a water dweet. I lated discovered that Math.log wasn't the best way to model perspective

u/iverjo

*later
u/iverjo

#water

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iverjo

function u(t) {

c.width=1920;for(i=6e3;i--;)s=1/(2100-(i+t*99)%2081),q=9e4*s*s,x.fillRect(960+2e5*s*C(i*173)-q/2,540+2e5*s*C(i*2e5)-q/2,q,q)

Jul 24 2016 2:42 PM UTC

}// 124/140

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A remake of the "Starfield" screensaver that was included in Windows 98

u/iverjo

If you watch this in fullscreen and stare at the center, your brain might be fooled into believing that you are moving
u/iverjo

#starfield #stars

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iverjo

remix of d/255 by u/Dyno

function u(t) {

c.width=1920;for(j=64;j--;)for(i=120;i--;)a=1+S((i^j)/9+4*t),x.fillStyle=R(a*30,160-a*30,a*50+30*S(t),a/2),x.fillRect(i<<4,j<<4,16,16);

Jul 21 2016 2:03 PM UTC

}// 135/140

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Remix of Dyno's dweet: http://dweet.dwitter.net/id/255?autoplay=1

Show more comments…
u/iverjo

For a more old school feeling, replace 4*t with 4*t|0
u/sigveseb

Nice colors, reminds me of the gameboy color palette.
u/sigveseb

(Did you delete an older version of this dweet?)
u/iverjo

Yes, I deleted the old school version that quantized the colors with 4*t|0 and put it as a comment instead :)
u/sigveseb

Ok, that was was the one I meant to comment on about the gameboy color palette ^^
u/iverjo

Does it deserve to be a separate dweet?
u/sigveseb

The more the merrier :P
u/iverjo

Ok, sure :P
u/iverjo

http://dweet.dwitter.net/id/298?autoplay=1

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iverjo

remix of d/268 by u/nkedel

function u(t) {

if(!t)r=0,X=960,Y=540,W=1920,H=1080;x.fillRect(X+=5*S(r+=.5-Math.random()),Y+=5*C(r),5,5),X=((X%W)+W)%W,Y=((Y%H)+H)%H

Jul 21 2016 11:35 AM UTC

}// 117/140

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With wraparound

u/iverjo

#random

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iverjo

function u(t) {

for(i=0;i++<2e3;)s=37/T(t+i/(t+1|0)),c=155+99*S(i*22),x.fillStyle=R(.6*c,c),x.fillRect(960+5*s*C(i+t),540+5*s*S(i+t),s,s)

May 6 2016 8:13 PM UTC

}// 121/140

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iverjo

function u(t) {

x.save();x.translate(960+(450-400*S(t/9)+90*Math.random())*S(6*t),500+500*S(t/9)*C(6*t));t&&x.lineTo(0,0),x.stroke();x.restore()

May 6 2016 6:47 PM UTC

}// 128/140

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