Dweets awesomed by u/13thptr

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: #Food

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keithclark

function u(t) {

for(k=i=1e3;z=--i/9;x.fillRect(k+S(m=k*j^k)*r-z*C(j)*6,540+C(m)*r-z*S(j)*4,s=5e3/z,s))j=i/k+t/4,r=1e4/z,x.fillStyle=R(a=99+S(j*7)*99,a,a)

Oct 8 2019 12:04 AM UTC

}// 137/140

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Show more comments…
u/yonatan

good remix of d/10212 :)
u/keithclark

Yes! It's totally based on your dweet yonatan - thanks for the link to the original. I found this in a text file from last year but couldn't remember who did the original.
u/keithclark

I also had this version: for(k=i=1e3;z=--i/9;x.fillRect(k+S(m=z%1&&k*j|5)*r-z*C(j)*6,540+C(m)*r-z*S(j)*4,s=5e3/z,s))j=i/k+t,r=1e4/z,x.fillStyle=R(a=99+S(j*9)*99,a,a) but wasn't happy with the rail
u/tomxor

Smooth!
u/tomxor

I quite like the rail ver, bit fast though
u/katkip

#tunnel
u/logomach

doctor who theme intensifies
u/larzuk

ultra nice!
u/Cloud

WOW!
u/vain

Just unbelievable. <3

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tomxor

remix of d/15951 by u/tomxor

function u(t) {

for(w=c.width=120,i=9e3;i--;x.fillRect(R=i%w,T=i/w,1,.5-Z/64))for(j=4,Z=T;j--;)Z=((R-60)**2+(T-33)**2+Z*Z)**.5-24+C(R*T/120+t*9)*C(Z/3+t)*7

Oct 6 2019 7:24 PM UTC

}// 139/140

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Ray Marching SDF Gone Wrong

u/tomxor

Not sure what Z represents anymore, it's essentially chaotic marching...
u/tomxor

Oh, i see it now, it's a #stargate just add glyphs
u/tomxor

#raymarching

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tomxor

function u(t) {

for(c.width=63,i=3e3;i--;x.fillRect(R=i&63,T=i>>6,1,.5-Z/24))for(j=5,Z=12;j--;)Z-=((R-32)**2+(T-18)**2+Z*Z)**.5-8+S(R/2+t*4)*S(T/2)*S(Z/2)*3

Oct 6 2019 12:27 PM UTC

}// 140/140

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Ray Marching SDF Sphere+Bumps

u/tomxor

Specifically, sphere tracing, with axis aligned field, i.e no perspective, marching along Z only. The sphere is not rotating, the simple displacement map is just being pushed through it's x.
u/yonatan

orthogonal raymarching... nice idea
u/tomxor

You said it more succinctly :)
u/tomxor

#raymarching

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f8f82804

remix of d/15872 by u/rnbw

function u(t) {

r=Math.random;with(x)for(k=t?4:64;k--;t?drawImage(c,k&1?1:-1,k&2?1:-1):(fillStyle=`hsl(${r()}turn,69%,70%`,fillRect(r()*2e3,r()*1e3,2,2)));

Oct 2 2019 7:34 PM UTC

}// 139/140

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territories -- remix without jitter

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rnbw

function u(t) {

r=Math.random;t||(i=j=1);j*=i=-i;x.fillStyle=`hsl(${r()*360},69%,70%`;x.fillRect(r()*2e3,r()*1080,1,1);x.drawImage(c,i,j)

Oct 2 2019 12:40 PM UTC

}// 121/140

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territories

Show more comments…
u/KilledByAPixel

👍
u/taupelink

This is great
u/DataMeta

Nice!
u/katkip

looks so good
u/katkip

that 69% ;o
u/rnbw

i think i just kept the 9 when i changed that from 99, lol

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joe.m

remix of d/15836 by u/joe.m

function u(t) {

t?0:q=j=4900,d=[-1,99,1,-99]
x.globalCompositeOperation='xor'
j+=u[q]?-1:1
u[q]^=1
q+=d[j%4]%9801
x.fillRect(19*(q/99|0),10*(q%99),18,8)

Sep 28 2019 2:08 PM UTC

}// 136/140

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langton's ant. Chaos becomes order after about 10k iterations, wait for it...

u/joe.m

#emergent #automata
u/KilledByAPixel

Welcome to the #ant club!
u/Xen

nice!

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robbyg

remix of d/15802 by u/robbyg

function u(t) {

for(i=2304,Z=30;i--;x.fillRect(H*Z,V*Z,Z,Z))H=i%64,V=i/64|0,A=Math.atan2(V-18,H-32),x.fillStyle=S(Z*t+5*A)>0>0?'#1112':'#eed6'

Sep 27 2019 3:22 PM UTC

}// 126/140

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Staring at the ceiling fan.

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rodrigo.siqueira

remix of d/15667 by u/nystrand

function u(t) {

for(r=945,i=1080;i--;x.fillRect(a+r,b+r-9,20,20))a=t*i*i*r%2e3-r,b=i-r,g=i+S(t)*a/5,x.fillStyle=R(A=C(g/a)*C(t*3-b/g)*i,A+a/8,A+b,.3)

Sep 12 2019 5:13 PM UTC

}// 134/140

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Flight landing

Show more comments…
u/magna

*while on drugs
u/0x04

Wow, trippy 😵
u/KilledByAPixel

👍
u/tomxor

woOp woOp woOp pull up, pull up
u/katkip

Awesome
u/Joachim

That's a very long runway!

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jlidbeck

function u(t) {

with(Math)for(i=c.width|=0;i-=20;)for(j=1e3;j-=20;)m=i-499,n=j-499,u=5*atan2(m,n),v=log(m*m+n*n)*3,z=9+9*C(u-t)*S(v-t*7),x.fillRect(i,j,z,z)

Sep 12 2019 3:03 AM UTC

}// 140/140

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u/13thptr

original

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veubeke

function u(t) {

x.fillRect(0,0,c.width^=0,2e3)
x.font='50em"'
x.transform(s=t<1||1+S((t-1)*Math.PI)/4/t,0,0,1/s,960-400*s,(t>1||t)*999)
x.fillText('🎃',0,0)

Sep 11 2019 7:41 PM UTC

}// 139/140

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It’s almost time

u/joeytwiddle

Nice! #halloween #pumpkin #bounce

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