Dweets awesomed by u/richev

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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pavel

remix of d/10485 by u/joeytwiddle

function u(t) {

for(z=42;j=z-->>1;x.fillRect(960+S(k)*15-w/2,540+C(k)*15+w/2-r,w,2*r-w))k=7*t-j/2,x.fillStyle=`hsl(${15*k},33%,${7*j}%)`,r=50*j,w=r*(.5+z%2)

Oct 20 2018 8:43 PM UTC

}// 140/140

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Fixed the plus shape in the back and added color cycling

u/pavel

Check it out in fullscreen

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logistikalism@gmail.com

function u(t) {

for(i=1;i<13;i++){for(j=1;j<7;j++){x.fillRect(150*i+S(t*(i))*55,150*j+C(t*j)*55,10,10)}}

Oct 20 2018 3:14 PM UTC

}// 88/140

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ersagun

function u(t) {

j=C(T=t*4-S(t*8)/2)-S(Math.acos(1-Math.abs(i=S(T))))
z=(a,k)=>(a*(3-C(T/27))+k)*99
x.lineTo(z(i,9),z(j/1.5,7))
x.stroke()

Oct 19 2018 6:55 PM UTC

}// 121/140

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I thought I should start simple. Heart formula I used here is a parametrization of a heart formula I derived some years ago.

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yonatan

function u(t) {

w=c.width=64
h=40
for(i=5e3;i--;)i>6?x.fillRect(i&63,(i>>6)+h,s=S(i**4),s):x.drawImage(c,0,h+t%h,h,w,0,0,z=2**i*64,z,x.globalAlpha=i**.5/9)

Oct 19 2018 5:23 AM UTC

}// 139/140

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Value #noise with #fbm

u/yonatan

some cross-browser issues. better on chrome.
u/iverjo

#clouds
u/aleamb

wow! superb and very smart!

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tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i)
for(t+=160;p=i&1,m=t/C(t/i)+p*(t/2+i%t),i--;)x.clearRect(
960+m*S(n=t/9+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=3-C(n)*3,s)

Oct 17 2018 8:45 PM UTC

}// 140/140

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#space #planet #saturn

Show more comments…
u/joeytwiddle

Wow, beautiful! I am blown away. #dots #lighting #shading
u/lionleaf

Wow! That's amazing
u/magna

WOW!
u/sigveseb

no way!
u/yonatan

beautiful!
u/jellyedwards

That's incredible, well done!
u/jellyedwards

If you change this bit too use t it's like Saturn uses its ring as a hula hoop: 540+m*C(n+p*t)
u/katkip

woow... gj bro
u/keithclark

Nice!!!
u/aleamb

wow! superb!
u/iverjo

That's pretty rad
u/rnbw

my mind is officially boggled o_o
u/Purpzie

This is absolutely beautiful.
u/tomxor

Thanks for all the kind comments :) for those interested: the key is in the parity bit p=i&1 this allowed me to combine two different but similar functions by multiplying parts in an out on each iteration. You should be able to pull the two apart into something more intelligible.
u/magna

@tomxor are you on Twitter as @tomxor by any chance?
u/tomxor

I am not, nor am I on any other social network... unless you consider Github one :P but a different pseudonym..
u/jylikangas

Beautiful dweet!
u/aleamb

The Cosmos is all that is, or ever was, or ever will be. The contemplation of the this Cosmos stir us.
u/Renaud___

so Beautiful
u/ivylab

This is absolute badass
u/vain

OMG! This part blew me away!
u/jdspugh

Well done!

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yonatan

function u(t) {

for(k=c.width=314;T=k--/5;x.arc(99+(Y*S(t)+X*C(t))*r,80+(2*C(2*T)+C(T))*r,r/2,0,7))X=2*S(2*T)-S(T),Y=S(3*T),r=(9+X*S(t)-Y*C(t))*2
x.stroke()

Oct 17 2018 1:48 PM UTC

}// 140/140

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#trefoil #knot

u/katkip

this looks nice
u/tomxor

Neat knot! looking forward to playing with this one.
u/iverjo

Hot or knot?

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joeytwiddle

function u(t) {

for(c.width|=j=20;j--;x.fillRect(960+S(k=9*t+j/2.3)*12-w,540+C(k)*12-h,2*w,2*h))x.fillStyle=R(s=13*j,s,r=s*1.5),w=r*(.5+j%2),h=r*(1.5-j%2)

Oct 16 2018 9:51 AM UTC

}// 138/140

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Blue cross tunnel - a tribute to https://pycodelic.blogspot.com/2018/08/tunne…

u/joeytwiddle

Oops the ripples should come outwards k=9*t-j/2.3
u/sigveseb

pretty colors
u/joeytwiddle

That website is actually made by a Dwitter user, but I'm sorry I forgot who!

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akx

function u(t) {

for(c.width|=0,y=0;1080>y;y+=5)for(i=0;10>i;i++)x.setTransform(1+(.002*y)**3,0,0,1,960+100*S(3*t-.015*y),y),x.fillRect(100*(i-4.75),0,50,5)

Oct 13 2018 1:38 PM UTC

}// 140/140

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laminar marimekko

u/qbob

oooohhhhh
u/katkip

nice
u/lionleaf

Amazing! #flow
u/joeytwiddle

wibbly wobbly #warping
u/Purpzie

Shortened by 10 characters: for(c.width=b=2e3;b--;x.fillRect(100*(b%10-4.75),0,50,5))x.setTransform(1+(.002*(y=(0|b/10)*5))**3,0,0,1,960+100*S(3*t-.015*y),y)

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pavel

remix of d/10354 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=W=c.width=600,W);i;i-=5)for(j=0,a=((W*i^1e7)+t*W)%W;j<a;x.fillText(i%j&1,i,j+=9))x.fillStyle=R(b=(a-j<9)<<8,300+j-a,b)

Oct 13 2018 4:01 AM UTC

}// 139/140

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Matrix Rain v2

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jonathan-potter

function u(t) {

a=10000;b=1920;d=400;e=50
c.width=b
x.rotate(.8)
for(i=0;i<d;i++) {
z=e*S(i*t/8)+i*e
x.fillRect(z,-b,e,a)
x.fillRect(0,-b+z,a,e)}

Oct 12 2018 11:55 PM UTC

}// 129/140

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put things together until it looked fancy

u/joeytwiddle

Hell yeah you did
u/lionleaf

Hypnotic! And there are so many different phases
u/BirdsTweetCodersDweet

c.width=b=1920,x.rotate(.8) for(i=400;i--;)z=(e=50)*S(i*t/8)+i*e,x.fillRect(z,-b,e,1e5),x.fillRect(0,-b+z,1e5,e) - 112... Now you can fit in a fillStyle() :D

dwitter.net | richev (19706)