Dweets awesomed by u/pavel

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

jellyedwards

function u(t) {

x[f='fillStyle']='#0002'
x[r='fillRect'](0,0,2e3,2e3)
x[l='clearRect'](X=T(t)*99,540,39,9)
x[l](X+39,535,99,9)
x[f]='cyan'
x[r](X,543,30,2)

Mar 5 2021 7:27 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

To boldly go where no very far away spaceship has gone before

u/magna

Sweet!

show FPS hide FPS share 3 remixes fullscreen

KilledByAPixel

remix of d/21814 by u/KilledByAPixel

function u(t) {

with(x)for(c.width|=i=144;i--;restore(fillText(u,0,9)))setTransform(52,!save(beginPath()),9,99,z=19*S(i*i+t),z),clip(rect(i%32*2,i>>4,2,2))

Mar 4 2021 7:41 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

fractured function #fracture #uncompressed

u/kimeiga

clever use of "u" LOL

show FPS hide FPS share 1 remix fullscreen

Pascal

function u(t) {

for(c.width|=i=w=1e3;i--;x.lineTo(w+w*(C(i+44/7*(.5+S(t+i/w/9)/2)**9)+C(i/6+t))/z,w/2-w*(S(i)+S(i/6+t))/z))z=S(i)-5
x.stroke()

Mar 4 2021 6:24 PM UTC

}// 126/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/Xen

nice!

show FPS hide FPS share fullscreen

tomxor

remix of d/21783 by u/tomxor

function u(t) {

A=t?A.map(a=>(s=u[a>>4]^=1,x[s?'fillRect':'clearRect'](a>>6,a&1008,16,16),a=a+2*s+1&~4,a+=a&1?a%4-2<<10:a%4-1<<4)):[54675,69010,69233,54896]

Mar 2 2021 11:27 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Multi #langton's #ant

u/tomxor

Squashed each ant into a 16bit bit field, [X,Y,D] = 0b 111111 111111 0111. These ants were generated with: X=7,Y=7,D=0,[[-X,-Y,3+D],[+Y,-X,2+D],[+X,+Y,1+D],[-Y,+X,0+D]].map(([X,Y,D])=>X+60<<10|Y+32<<4|D%4<<0)
u/mark1626

This is incredible. Just one question, how does s = u[a >> 4] ^= 1 work?
u/tomxor

Thanks :) a>>4 is the cell index of a 64x64 grid. the lower 4 bits are for the ant's direction so shifting them off to the right leaves only the 12 X and Y bits (see above). u is just an object, so all of these indicies will be undefined initially, but undefined is falsey and bitwise operators coerce falsey into 0, i.e undefined ^ 1 == 0 ^ 1 == 1, in otherwords XOR just treats all of the initial cell values as 0. Using the assignment version ^= means we toggle each cell between 0 and 1 each time an ant passes through it (which is part of the langton ant rules).

show FPS hide FPS share 1 remix fullscreen

rodrigo.siqueira

remix of d/21003 by u/katkip

function u(t) {

c.width|=c.style.filter="blur(2.5vh)contrast(4)"
x.fillStyle=R(90)
for(Z=5-~t*2;Z--;)x.beginPath(),x.fill(x.arc(40*Z,T(Z+t+S(Z))*20,40,0,7))

Mar 2 2021 5:30 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Dripping #blood

u/danny@hille.dk

Nice! (but creepy AF)
u/magna

WOW!
u/aleamb

yeah!

show FPS hide FPS share fullscreen

erin

remix of d/21796 by u/erin

function u(t) {

for(d=i=540;i--;)x.fillRect(25*S(t*2.6)+i*100+(2.6*t&3)*25,t/9*d,45,1)

Mar 2 2021 2:15 PM UTC

}// 71/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

barbed wire pattern

show FPS hide FPS share 3 remixes fullscreen

rodrigo.siqueira

remix of d/21726 by u/rodrigo.siqueira

function u(t) {

c.width=1e3
x.lineWidth=.2
for(i=2e3;i--;x.arc(500+300*C(t),282+88*S(t),i,K=i**(1.13+t/1e5)-t/9,K));x.stroke()

Mar 1 2021 1:18 PM UTC

}// 110/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Rotating sketch ball with inside triangle

u/danny@hille.dk

Illuminati confirmed! 😮
u/Qwitter

that is good.
u/Qwitter

smell th e flower

show FPS hide FPS share 2 remixes fullscreen

BackendForth

function u(t) {

v=Math.random
for(i=4999;i--;)x.fillRect(1920*v(),1080*v(),9,9)
a=1080*v()
if(v()<.04)for(i=1080;i--;){x.clearRect(a,i,9,9)
a+=(v()-.5)*9}

Feb 28 2021 3:59 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#lightning

u/magna

Great technique!

show FPS hide FPS share 1 remix fullscreen

rodrigo.siqueira

remix of d/21765 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,2e3,2e3),i=w=400;i>-400;i--,x.clearRect(960+i+S(i/40+t/3)*w,540+200*S(i/40)*C(t/3+S(i/9+t))*S(i*i),2,6))x.globalAlpha=.1

Feb 26 2021 11:36 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

boids flow

show FPS hide FPS share fullscreen

nystrand

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𭰽𜡥𜰬𩰽𚁯𛁡𛁢𛁺🐶𙑢𚱩𙐳𚠷𛁚👺𛰸𞀸𚰮𜀳𛁖👩𙐳𚠸𞐩🐾𫠭𛐿𩰨𭀯𫠭𥠬𨠪𠰨𫰩𛑡𚡓𚁯𚐬𮠬𨐪𠰨𫰩𚱢𚡓𚁯𚐩𞡸𛡦𪑬𫁒𩑣𭀨𨐯𦠫𞐶𜀭𭰬𨠯𦠫𝐲𜀭𭰬𠠽𜠪𭰯𦠬𠠬𮀮𩡩𫁬𤱴𮑬𩐽𤠨𥠭𭰬𜠯𦠭𭰬𜐳𞐭𥠬𭰽𛠲𚐩𞱩𛐭𞰩𩰨𪐬𫠽𝠬𪐥𝰩`.replace(/u../g,'')))

Feb 26 2021 5:52 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/rodrigo.siqueira

Amazing! Welcome back, Nystrand. I still remember the B&W version of this one (/d/14899). And your dweet d/4388 (Sierpinski witchcraft) is one of the most amazing I've ever seen. Thanks.
u/nystrand

Thank you Rodrigo!
u/vain

hot stuff. like the colors and motion blur

dwitter.net | pavel (31985)