Dweets awesomed by u/magna

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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recursive

remix of d/2065 by u/recursive

function u(t) {

w=C(t)
h=S(t)
for(c.width|=s=i=H=512;i--;x.lineTo(960+(X*w-S(i)*h)*H,H+(Y*w-Z*h)*H))X=C(o=i/-~t),Y=C(i)*S(o),Z=S(i)*w+X*h
x.stroke()

Mar 12 2017 6:50 AM UTC

}// 132/140

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u/sfz

It looks like a horned shark egg case, of all things

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kchplr

function u(t) {

for(c.width|=0,i=400;i--;T=((1+S(t))/2)**3,x.fillRect(490-(S(X*T)*500-500)*T,540+C(X)*500,S(X*T)*1000*T+1000*(1-T),10))X=i%400/128

Mar 11 2017 11:25 PM UTC

}// 130/140

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u/recursive

Has the character of a viscous fluid somehow.

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recursive

function u(t) {

t||(h=[])
for(n=i=960;--i+n;x.fillRect(i/(1-t/16)+n,(9e3-g*50)/(16-t),9,g))
g=h[i]=h[i]+T(i+t/9)/5-.1||0,x.fillStyle=R(g-t*9,255-g,S(t)*256)

Mar 11 2017 10:12 PM UTC

}// 140/140

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Laser war? Crystal cave?

u/donbright

beautiful

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kchplr

function u(t) {

for(c.width|=0,i=4940;i--;Y=3+i/380|0,x.fillRect(960+(S(X+t+C(i+t)*Y/9)+S(Y+t)*Y/2)*(50+Y*9),540+(C(X)+C(Y+t/9)*Y/3)*(50+Y*9),Y,5))X=i%380

Mar 11 2017 10:05 PM UTC

}// 139/140

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hypothete

function u(t) {

f=Math.random;z=f()*500;x.globalCompositeOperation='xor';x.beginPath();
x.arc(f()*1920,f()*1080,z,0,Math.PI*2);x.fill();

Mar 11 2017 2:15 AM UTC

}// 120/140

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donbright

remix of d/1863 by u/SpecialAgent

function u(t) {

c.width=1024;w=64;for(i=w*w;i--;)X=i%w,Y=i/w>>0,P=128*((1-t*t)*X*X/(1+t*t)+2*t*Y*Y/(1+t*t)),x.fillRect(200+X*10,Y*10,P%11,P%11)

Mar 11 2017 2:03 AM UTC

}// 129/140

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No Sine or Cosine were harmed in the making of this demo. It is not random - and if it runs long enough it should theoretically become a still image

u/sfz

Those ripples are tripping me out
u/donbright

note to future self - this varies from x*x + y*Y to x*x-y*y (circle to hyperbola) by using the rational parameterization of the circle with one variable parameter, where (1-t**2)/(1+t**2) is an alternate to cosine and 2t/(1+t**2) is an alternate to sine. (or vice versa i forget lol)
u/magna

Awesome!
u/z3vin

So cool

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recursive

remix of d/2036 by u/nick

function u(t) {

x[f="fillStyle"]="#00a"
x.fillRect(0,0,960,540)
x[f]="#fff"
for(i=50;i--;x.font='5em a')x.fillText("★",i%5.5*160+40,80+(i/5.5|0)*52)

Mar 11 2017 1:59 AM UTC

}// 132/140

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Stars but no stripes

u/nick

It's going to be hard to combine the two patterns.
u/nick

How do you get the "remix" text on your dweets?
u/recursive

Edit the dweet you want to remix rather than starting a new one.

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donbright

remix of d/2033 by u/recursive

function u(t) {

t||(a=0)
x.drawImage(c,C(a+=S(t/155*C(t)))*20,S(a)*20)
x.fillRect(1e3,500,20,20);
x.fillStyle=R(128*S(a)+128,(C(a)*256)%256,(250-a)%250)

Mar 11 2017 1:17 AM UTC

}// 137/140

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actually a remix of two... recursive's 2033 and https://www.dwitter.net/d/2008 by RavenWorks

u/sfz

wowweewowowo
u/RavenWorks

this is great!!
u/recursive

Whoa, you went in a totally different direction with this.

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recursive

function u(t) {

t||(h=[])
x.drawImage(c,0,-1)
for(i=2e3;--i;x.fillRect(i,1079,1,1))x.fillStyle=R((h[i]=(h[i-1]+h[i]+h[i+1])/3.01+Math.random()*40-20|0)+128)

Mar 10 2017 11:53 PM UTC

}// 140/140

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u/donbright

liked this method alot. remix https://www.dwitter.net/d/2037
u/hypothete

your noise generation here is slick, is this a technique of sorts or just trial and error?
u/recursive

Both. I wanted to be random, but I didn't want pure static. I wanted nearby pixels to have similar levels.

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@literallylara

function u(t) {

c.width=1920
R=_=>S(s)+(S(s++)>0?0:1)-.5
for(s=i=H=540;i--;)x.fillRect(a=960+(R()*C(t)-R()*S(t))*H,b=H+R()*H,20,20),x.lineTo(a,b)
x.stroke()

Mar 10 2017 9:11 PM UTC

}// 140/140

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Show more comments…
u/sfz

that is so cool
u/donbright

woah! Tensegrity?
u/donbright

this is so much genius!!!
u/lsh

This is amazing!
u/aemkei

Whaa! Cool 3D effect!
u/donbright

loose remix https://www.dwitter.net/d/2112
u/donbright

re-remix https://www.dwitter.net/d/2468
u/donbright

oops i mean https://www.dwitter.net/d/2469

dwitter.net | magna (131939)