Dweets awesomed by u/sfz

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: #Opposites

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sfz

remix of d/1926 by u/sfz

function u(t) {

I=S(t)
O=C(t)
a=Math.sqrt(t*999)
b=4*a/5
for(i=9;i--;)x.fillStyle=`hsla(${t*b/i},80%,66%,.01)`,x.fillRect(i%3*4*a+a*O-b*I,i*139+a*I+b*O,a,b)

Mar 9 2017 10:47 AM UTC

}// 140/140

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Fermat's spiral

u/donbright

reminds me of impressionist watercolor eventually

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nick

function u(t) {

k=125;for(j=-4;j<14;j++)for(i=-1;i<26;i++){x.fillRect(i*70,i*10+80*j,72,82);x.fillStyle=R(k*(S(17*i^2)+1)+k*S(j),k*C(t*j^2)+k*S(i),k*C(t))}

Mar 9 2017 7:59 AM UTC

}// 139/140

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Online Dwitter Primer: http://nickpisca.com/sherpa/?p=600

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donbright

remix of d/1969 by u/jes5199

function u(t) {

c.width=2e3;g=new Float32Array(1);for(a=192;a;a--)for(b=99;b;b--){C=(a-96)*t;d=(b-54)*t;v=C*C+d*d;g[0]=v;v-g[0]>0?x.fillRect(a*9,b*9,9,9):0}

Mar 9 2017 12:43 AM UTC

}// 140/140

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animating some of jes5199 's circles-and-squares -ish patterns.

u/jes5199

cool! This particular pattern is based on this paper: http://www.cgl.uwaterloo.ca/csk/projects/ali…
u/donbright

thanks for linking that, very very interesting.
u/donbright

#Aliasing

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recursive

remix of d/1976 by u/recursive

function u(t) {

for(d=256;--d;)for(X=-32;++X<32;x.fillRect(960+X*8e3/d,100+7e4/d-h,120,9))x.fillStyle=R(h=(C(a=d/9+t*6)+C(X/9+a/3))*35,g=h+C(X^d)*6+90,g/.8)

Mar 9 2017 12:33 AM UTC

}// 140/140

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Bluer waves

Show more comments…
u/sfz

Incredible
u/sigveseb

Epic
u/FireFly

This is crazy, great stuff :D
u/iverjo

Best water on dwitter thus far!
u/iverjo

I also tried to achieve this some time ago, but yours is much more convincing
u/iverjo

https://www.dwitter.net/d/65 and https://www.dwitter.net/d/254 and https://www.dwitter.net/d/295 and https://www.dwitter.net/d/366
u/recursive

Your idea gives really great color to the surface. I wonder if it's possible to animate the colors using your idea, and the wave geometry and lighting using mine.
u/magna

(ノಠ益ಠ)ノ彡┻━┻
u/Renaud___

very very nice
u/jsizzle

Seriously amazing. Wow
u/SpecialAgent

Bravo
u/ideokan

i am a web developre, feeling like a dumb monkey in here
u/PiggyClone205

Welcome to the club, ideokan.
u/Godcranberry

This sis amazing, totally my favorite
u/Godcranberry

is* mb fam
u/iverjo

#water
u/hollo47

#ocean
u/katkip

#waves
u/vain

Very nice and lovely wave

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hypothete

function u(t) {

sf=80;x.globalAlpha=0.1;x.drawImage(c,-sf+sf*S(t),-sf+sf*S(t/2)/2,1920+2*sf,1080+2*sf);
x.font='200px Arial'; x.fillText('🍄',810, 540);

Mar 8 2017 8:57 PM UTC

}// 135/140

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sfz

remix of d/1962 by u/sfz

function u(t) {

w=950
V=t%13+3
for(i=V;i>0;i-=2/w)x.fillStyle=`hsla(${7*t*i},66%,66%,.2)`,x.fillRect(w+w*S(t*i+2*V),w/2+w/2*S(V*i+2*t+3),V,V)

Mar 8 2017 7:22 PM UTC

}// 125/140

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Harmonograph II.2

u/donbright

i like these colors
u/sfz

I call it Mathematician's Plaid

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nystrand

function u(t) {

for(l=c.width=512,a=C(t),b=S(t);l--;x.fillRect((k-a*a*i-b*a*j+b/a)*z+300,(a*i+b*j+a*k)*z+99,d=.2*z/a,d))i=l>>6,j=l>>3&7,k=l%8-4,z=20+b*i-a*j

Mar 8 2017 6:20 PM UTC

}// 140/140

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u/sigveseb

This is good
u/FireFly

Woah, very nice!
u/p01

Ace!
u/donbright

cool 3d
u/Lazy1337

#d3
u/Lazy1337

#cube

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Jenky

function u(t) {

r=210;X=Y=O=20;n=new Date/1e3
b=d=>{x.fillStyle=R(d?0:r);x.fillRect(X,Y,r,r);Y+=X<r*7?0:O+r;X=X<r*7?X+O+r:O}
for(i=2;i<5e9;i*=2)b(n%i>=i/2)

Mar 8 2017 1:17 PM UTC

}// 139/140

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Binary representation of number of seconds passed since 1 Jan 1970

u/donbright

super cool

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sfz

remix of d/1922 by u/sfz

function u(t) {

c.width|=w=950
V=t%13+3
for(i=V;i>0;i-=1/w)x.fillStyle=`hsl(${7*t*i},66%,66%)`,x.fillRect(w+w*S(t*i+2*V),w/2+w/2*S(V*i+2*t+3),V,V)

Mar 8 2017 10:52 AM UTC

}// 130/140

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Harmonograph II

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sfz

function u(t) {

W=c.width|=0
for(i=q=20,h=q*9,H=3*h;i>0;i-=.01)N=C(t*q),O=C(i),V=3**O-2*C(4*i)-S(i/q)**5,x.fillText('🦋',W*t%4e3-H+h*O*V,H+h*(N+N*S(i)*V))

Mar 8 2017 7:06 AM UTC

}// 137/140

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Butterfly for my daughter

u/sfz

(Chrome only)
u/magna

Awesome!
u/sigveseb

Creative ^^
u/donbright

works in newer firefox!!!
u/sfz

woohoo

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