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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remix of d/18851 by u/Foldster

function u(t) {

c.width+=0
t*=93
for(i=1;i<99;i++)
for(j=0;j<99;j++)
(((j+(s=i+t))^(i-j))**2)%7<2?x.fillRect(7*j+i*(128-i)/10,10*(110-i),S(i)*j,T(j)*t/99):0

May 19 2020 12:20 AM UTC

}// 140/140

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u/andrea270872

Very cool. To me it looks like one of those nuclear explosion videos from Terminator 2 or the cold war! Terrific!

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Space_son

remix of d/18911 by u/smtsjhr

function u(t) {

a= 10
for(i=150;i--;x.fillStyle=R(w=i%2*255,w,w,.8)){d=115*(k=(1.015)**(i));
x.fillRect(960+100*S(i*(.6+.5*S(a))+2*t)*k-d/2,540-d/2,d,d)}

Nov 3 2023 11:27 AM UTC

}// 137/140

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u/andrea270872

groovy baby :)

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FENRIR

function u(t) {

c.width|=0
c.style.background=R()
x.fillStyle="#fff"
for(i=1e2;i--;p=1e5*S(i),r=9/(4-(p+t)%3),x.fillRect(C(i)*360*r+960,r*i*r,r,r));

Dec 28 2017 11:48 PM UTC

}// 134/140

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f8f82804

remix of d/9687 by u/f8f82804

function u(t) {

c.width=480;with(x)for(translate(w=240,99),rotate(a=S(t)),i=17;i--;stroke())lineTo(w*S(p=a*i/9+11*i-t+(i&~3)*2)/(Z=3+C(p)),w*(i&4?-.7:.7)/Z)

Oct 10 2018 7:16 PM UTC

}// 140/140

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#glitch #cube #perspective #d3

u/aleamb

great!
u/f8f82804

#wireframe

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aemkei

function u(t) {

c.width^=0;for(Y=12;Y--;)for(X=12;X--;)(1<<X)&[,396,82,66,76,80,76][Y]||x.fillRect(1190-X*50+S(t+X/10)*30,700-Y*50+C(t*3+X/4)*30,36,36)

Mar 10 2017 7:55 PM UTC

}// 135/140

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u/donbright

lol i salute this flag
u/joeytwiddle

#flag
u/atgz

#logo

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shapes

remix of d/2423 by u/shapes

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/1.3;φ>-a;φ-=1/r){λ+=a/9;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+φ/r)*S(t)+S(r)*C(φ)*C(λ-t))*r+r)}x.stroke()

Apr 6 2017 2:08 AM UTC

}// 139/140

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u/cantelope

amazing!
u/shapes

Thanks, most credit goes to mxfh though, I'm just fuckin' around with his code to find cool shapes :)

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384.cz

remix of d/26153 by u/384.cz

function u(t) {

t?0:c.width=99
x.fillRect((f=t*60)%24,f/12,.9,`𩩴駌쀹찉찉쀹쑖쀹駌駌駌駌`.charCodeAt(f/24).toString(3).padStart(12)[0|f/2%12])

Oct 13 2022 6:16 PM UTC

}// 116/140

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#robot

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tomxor

remix of d/24141 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𩠽𧰽🡓𛰶𞀭𜐮𞀸𯁃𛰱𝠭𝀮𜑼𤰫𝀦𞀬𭰽𨰮𭱩𩁴𪀦👩🐳𜰰𜠴𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𤰽𪐦𜠵𝐬𠰽𪐾🠸𛀱𛁱🐲𚡰𯀰𚐬𤠽𚁰𛑱𚐯𜐶𛁵𦱔𧐫🐳𚡒𛁵𦱔👩𛑷𧐫🐵𚡒𛁵𦱔𛐱𧐽𤠩𬀽𚁵𦱩𧐫🐷𚡒𚐫𚁦𚀩🱦𚁓𛐽𝀬𠰭🐴𚐿𚁓𚡓𚱃𚡃𚐯𞑥𝀫𛠱𞠱𞠰𚑼𯀰`.replace(/u../g,'')))

Oct 16 2021 12:50 AM UTC

}// 140/140

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#default Floyd–Steinberg #dithering

u/ciaccodavide

oooooh, I love dithering! Nice one!
u/tomxor

me too :) I didn't realise how simple the algorithm was before no, and it can be done in a single pass because it's only half a 2d kernel. Tweaking the coefficients (*R) can be fun, e.g 7*R=>5*R, 3*R=>5*R better preserves the dark and light areas in this image.
u/magna

Wow
u/sigveseb

Very nice!

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andrea270872

function u(t) {

x.fillStyle='#0DE'
for(i=~~t%7;i--;x.fillRect(1e3+9*t*S(6-i),500+10*t*C(6-i),5,5));
x.drawImage(c,0,0,2e3,1e3,T=t%3,T,2e3-2*T,1e3-2*T)

Dec 31 2020 4:21 PM UTC

}// 134/140

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snow crystals

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ciaccodavide

remix of d/20965 by u/ciaccodavide

function u(t) {

c.width|=1
with(x){
for(i=5;i--;)moveTo(960+99*i,540),arc(960,540,99*i,t*i,6-i+t*i)
fill('evenodd')}

Dec 11 2020 6:24 PM UTC

}// 100/140

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