Dweets awesomed by u/etury

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: #Opposites

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ntsutae

remix of d/20669 by u/tomxor

function u(t) {

for(c.width&=i=8320;i--;)
x.fillRect(X=i&127,Y=i>>7,
k=S(8*t+X*X-3*Y*Y+19*X*Y)+.5,k)

Nov 18 2020 4:30 PM UTC

}// 84/140

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u/tomxor

#illusion This is messing with my eyes! looks like continuous rotating slices without ever getting beyond 90 degrees
u/joeytwiddle

Travelling without moving
u/ntsutae

I didn't have enough understanding and respect for the work

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tomxor

remix of d/20657 by u/dnmc

function u(t) {

for(c.width&=i=8320;i--;)
x.fillRect(X=i&127,Y=i>>7,
k=S(8*t+X*X+Y*Y+X*Y)+.5,k)

Nov 18 2020 1:33 AM UTC

}// 79/140

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Nano Snakeskin

u/bandaloo

this is great! i'll definitely be using this substitute for a doubly-nested for loop
u/DataMeta

agreed, cool trick! even more succinct than the nested hack I've been using, and the perf increase from bitwise ops is welcome
u/tomxor

Yes, I've used this so much, I guess it's just more obvious in this one. I've taken technique a step further in d/20707 converting yonatan's 3 loops into one. bitwise can be very powerful to manipulate the variables a loop traverses.

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dnmc

function u(t) {

c.width=1000
for(i=1;i<100;i++)
for(j=1;j<100;j++) {
x.fillStyle=R(255*i/j/(1+C(t)),0,j*j/i/(1+S(t))/50*255);
x.fillRect(i*10,j*10,10,10)
}

Nov 14 2020 5:26 AM UTC

}// 139/140

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Waves

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geb

remix of d/20544 by u/geb

function u(t) {

X=1e3,Y=X/2
for(c.width|=i=2e3;i--;x.fillStyle='#00f',x.fillRect(X+=C(d*=.7),Y+=d,9,i/9),x.fillRect(2e3-X,1e3-Y,9,i/9))d=C(i/45+S(i/99)+t)*2

Nov 10 2020 1:43 PM UTC

}// 140/140

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u/donbright

clever!!!

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danny@hille.dk

function u(t) {

for(c.width=X=60;X--;)for(Y=34;Y--;)x.fillStyle=R(r=260*(C(t*5+Y/8)+S(t+X/16+C(Y/(4+C(t)+S(X/9+Y/6))))),r/2),x.fillRect(X,Y,1,1)

Nov 9 2020 1:49 AM UTC

}// 128/140

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#fire #flame

u/danny@hille.dk

webgl version: http://glslsandbox.com/e#69217.0

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geb

remix of d/20393 by u/ciaccodavide

function u(t) {

P=21*C(S(T(t)))
for(K=0;K<960/P;K++)x.fillStyle=R(g=9*Math.random()*K,(t*10)%255),t,
x.fillRect(K*P,0,1920-P*K*2,P)
x.drawImage(c,0,P)

Oct 26 2020 4:12 PM UTC

}// 134/140

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i see faces in the middle

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danny@hille.dk

remix of d/20372 by u/danny@hille.dk

function u(t) {

for(Y=t*60,X=480;X--;x.fillStyle=R(0,o=222*C(C(S(t+X/23)-t+S(X/(9+T(X/19+Y/19))))),o*2))x.fillRect(X*4,0,4,9)
x.drawImage(c,0,4,1929,1150)

Oct 25 2020 2:27 PM UTC

}// 138/140

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The Great Waterfall is the highest waterfall in all the Land of Oz. It is located in the Quadling Country.

u/danny@hille.dk

u/xen I got the idea when i saw https://www.dwitter.net/d/20375
u/Xen

nicely done!
u/PoweredByWill

Laminar Flow!

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danny@hille.dk

remix of d/20373 by u/Xen

function u(t) {

for(X=480;X--;x.fillStyle=R(o=X*T(T(t+S(X*(T(t/9)/t)))),0,o/T(t)))x.fillRect(X*4,0,4,4)
x.drawImage(c,0,4,1920+T(T(t/9)*9*S(t+X*6))+10,1080)

Oct 25 2020 1:15 PM UTC

}// 140/140

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Helios-1 #glitch

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tomxor

remix of d/19750 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐭𛐻𭑛𪑝👲𙐨𛠶𚱓𚁴𚡙𛰸𧡘𛰴𚐯𞐩𚠨𬀫𭑛𪐭𭱝𚱵𦱩𛑷𚰱𧐩𙡷𛐱𯀨𠰨𦀯𝐰𛑴𚠲𚐪𠰨𦐯𝐰𛑴𚐩𚠪𭰪𭰩𬀽𭑛𪑝𛁸𛡦𪑬𫁓𭁹𫁥👒𚁰🁷𙠦𬀪𞀬𬀼𭰦𙡰𚠲𚐬𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙🐶𞀭𪐯𭰬𜐬𬀪𚠮𝀯𞀭𜐩𛁲👩𚡴𧡩𙡙`.replace(/u../g,'')))

Aug 24 2020 10:35 PM UTC

}// 140/140

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#meteor

u/tomxor

Still playing with fire...
u/tomxor

#fire

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ntsutae

function u(t) {

c.style.filter=`invert(`
for(c.width|=X=Y=0,i=2e3;X=C(a=(i/99^0)*6-Y+t)-S(b=X-t+a/40),Y=S(a)-C(b),--i;)x.fillRect(X*480+960,Y*270+540,5,5)

Jun 17 2020 9:31 PM UTC

}// 139/140

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inspired by https://twitter.com/yuruyurau/status/1227244…

dwitter.net | etury (1452)