Dweets awesomed by u/stefano

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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Current theme challenge: #Opposites

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rodrigo.siqueira

remix of d/21470 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=120)=>T(S(X+Y/5)*5+S(n*X))<9?f(X*X-Y*Y,2*X*Y+.7,n-2):n
for(var i=1921;i--;){
 x.fillRect(i,t*120,.5-f(i/4e4-.45,t/300+.205)/40,2)
}

Jan 28 2021 1:36 PM UTC

}// 140/140

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The thorns have grown (from previous dweet). Branches noir #forest

u/katkip

WOW

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Qwitter

function u(t) {

w=c.width=1920;N=128;for(j=9216;j--;){X=(j%N)*15;Y=((j/N)^0)*15;x.fillRect(X+40*C(X/120+C(t/3)*Y/99-9*t),Y+40*S(X/120-7*t),9,9);}

Jan 28 2021 2:55 AM UTC

}// 129/140

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u/Xen

nicely done

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rodrigo.siqueira

remix of d/21469 by u/rodrigo.siqueira

function u(t) {

f = (X,Y,n=120)=>T(S(X+Y/5)*5)<9 ? f(X*X-Y*Y,2*X*Y+.7,n-2):n
for(var i=1920;i--;) {
 x.fillRect(i,t*120,.5-f(i/40000-.45,t/300+.205)/40,2)
}

Jan 27 2021 3:45 PM UTC

}// 140/140

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Growing thorns.... (just changed Sin amplitude from 2 to 5)

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rodrigo.siqueira

remix of d/21453 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=99)=>T(X-S(Y))<9?f(X*X-Y*Y,2*X*Y+.7,n-1):x.fillStyle=`hsl(${i/8},80%,${C(n)*n}%`;i--;x.fillRect(i,t*60,1,1))f(i/3e3,t/50)

Jan 26 2021 4:11 PM UTC

}// 140/140

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Shaky lines #fractal

Show more comments…
u/danny@hille.dk

Love it!! reminds me of a Salvador Dali painting
u/aaaaaz

crazy !
u/DataMeta

woww this is beautiful!
u/DataMeta

my new lock screen wallpaper :) #abstract #art
u/rodrigo.siqueira

I created an animated version here: https://www.shadertoy.com/view/wtGcWc it's super fast and hypnotic. View in full screen!
u/danny@hille.dk

I just saw your "Super Julia Fractal" on shadertoy it is very cool!

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KilledByAPixel

remix of d/14752 by u/KilledByAPixel

function u(t) {

t%=1
c.width|=X=Y=Z=1
for(i=3e3;i--;x.fillRect(880+(a+t*X)*73,1200-(b+t*Z)*23,9,9))a=X-X*t,b=Z-Z*t,Z+=(X*Y-Z)/39,X+=(Y-X)/9,Y+=X*(27-Z)/90

Jan 25 2021 11:26 PM UTC

}// 138/140

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Animated #Lorenz Attractor Loop

u/KilledByAPixel

could be c.width|=t%=X=Y=Z=1

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danny@hille.dk

remix of d/21403 by u/danny@hille.dk

function u(t) {

w=c.width=58;for(i=2e3;i--;)x.fillRect(X=i%w,Y=i/w,C(Y/9-t/2)+S(X/19-t),S(Y/16+t/2)+C(X/16+t))

Jan 23 2021 6:24 PM UTC

}// 94/140

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Smoke and lasers remix

u/Xen

nicely

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rodrigo.siqueira

remix of d/21331 by u/danny@hille.dk

function u(t) {

for(i=w=c.width|=m=20;i--;x.lineWidth=m/s)(1+i)%m||x.beginPath(x.stroke()),s=i/m,x.lineTo(960+(i%m-9)/s*w,1e4/s+S(S(s/9+t*9)+i%m)/s*w)

Jan 21 2021 12:06 PM UTC

}// 134/140

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A small remix to test the forward movement illusion

u/danny@hille.dk

Now imagne: You are the pickup, this is your view, the record is your world
u/Xen

love it

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rodrigo.siqueira

remix of d/21330 by u/rodrigo.siqueira

function u(t) {

for(i=3e3,f=g=>i*g(i*i+t)*g(i/t)**.3;i--;x.fillRect(960+f(C),800-f(S),9/t,9/t))x.fillStyle=`hsl(${120+(k=S(i*i+t/5)*340)},99%,${k/4}%,.1`

Jan 21 2021 6:48 AM UTC

}// 137/140

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Turner's sunrise

u/magna

WOW
u/tomxor

Increadible!
u/tomxor

#art
u/aemkei

A Monet!
u/rodrigo.siqueira

#monet

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tomxor

remix of d/21327 by u/indjev99

function u(t) {

for(f=_=>S((d=Math.hypot(X-74,Y-32))-t*9)/d*1e3,c.width&=i=8320;i--;x.fillStyle=R(Z=f()+f(X+=20),128-Z,192-Z))x.fillRect(X=i&127,Y=i>>7,1,1)

Jan 20 2021 10:34 PM UTC

}// 140/140

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Fake #FDTD simulation #InterferencePattern

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u/danny@hille.dk

Hypno owl :-)
u/tomxor

OMG I can hear it now
u/Qwitter

Awesome: Hypno wHoo? Im going to have to put some Math.hypot in me dweets
u/tomxor

You mean Math.hypnot()? :P
u/Qwitter

possibly 'Math.EffectCause()' , but who does this owl hoo like, an infamous toad ?
u/danny@hille.dk

WebGl version: http://glslsandbox.com/e#70769.0

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danny@hille.dk

function u(t) {

for(i=w=c.width|=m=19;i--;x.lineWidth=m/s)(1+i)%m||x.beginPath(x.stroke()),s=i/m-t%1,x.lineTo(960+2*(i%m-9)/s*w,9+(1+S(S(s/6+t)+i%m))/s*w)

Jan 20 2021 4:53 PM UTC

}// 138/140

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Just ship it! (pun intended)

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u/danny@hille.dk

I have been golfing on this for some weeks
u/danny@hille.dk

unfortunately I lost the origins of the code, but it was a post on codepen
u/danny@hille.dk

The depth trick was lifted from one of u/cantelope dweets
u/tomxor

Terrain Terrain! Pull Up 🚨
u/pavel

Whoa!
u/Qwitter

that is relaxing
u/UEZ

what is the purpose of -t%1?
u/danny@hille.dk

gets the fraction if t: Try writing ´throw t%1` in a dwitter editor
u/danny@hille.dk

Well i guess it's leftover code from the depth calculation golf :-) doesn't seem to do much now :-)
u/UEZ

Yep, removing it can save some bytes without any effect...^^
u/UEZ

Btw, looks very nice. :-)

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