Dweets awesomed by u/jellyedwards

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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yonatan

function u(t) {

for(i=2e3;t<9&&i--;x.fillRect(i,(T+3)*t*45,1,2e3,x.fillStyle=R(a=255-t*t*3,a,a)))for(T=0,j=9;j--;T=T/2+C((i-960*S(t*k))*k/t/99))k=2**j

Oct 9 2019 10:22 PM UTC

}// 134/140

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Slow mountains #waitforit #landscape

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u/yonatan

fancy color version: https://codegolf.tk/a/389
u/katkip

awesome
u/taupelink

Excellent
u/aleamb

fucking awesome!
u/metamero

beautiful!!
u/magna

:)

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f8f82804

function u(t) {

r=_=>2*Math.random()-1;for(n=s=480;n--;z*z+w*w<4&&x.fillRect(s*a+1200,s*b+600,2,2))for(a=z=r()-.5,b=w=r(),i=16;i--;)z=z*z-w*w+a,w=2*z*w+b

Oct 9 2019 6:15 PM UTC

}// 137/140

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low-iteration #fractal

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KilledByAPixel

remix of d/15963 by u/KilledByAPixel

function u(t) {

for(k=960,i=c.width|=0;z=--i/9;x.lineWidth=9)x.arc(k-z*C(j=i/k+t/4)*6,540-z*S(j)*4,(C(i/99+t)+1)*3e3/z,m=k*((i**.7)/k*9+t/9)/9,m)
x.stroke()

Oct 8 2019 5:16 PM UTC

}// 140/140

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Bubble Spring

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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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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

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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Irratix

remix of d/15925 by u/Irratix

function u(t) {

c.width=1920
a=[]
x.beginPath()
for(i=0;i<200;i++){;x.lineTo(960+540*S(4.2*i+t)*C(t/7),540+540*C(2.1*i+t)*S(t/6))}
x.stroke()

Oct 4 2019 12:12 PM UTC

}// 125/140

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u/Xen

Nice!

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stefano

remix of d/15922 by u/stefano

function u(t) {

c.width=1920;d=120;r=60;q=0;while(q<144){i=q%16;j=q++%9;x.beginPath();x.arc((i*d)+r,(j*d)+r,Math.abs(S(t+i+j))*r,0,7);x.fill();}

Oct 4 2019 10:43 AM UTC

}// 131/140

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Xen

remix of d/15917 by u/Irratix

function u(t) {

for(i=[t*=99];i.length<t;i.push(t/i.length))x.fillStyle=R(t%260,t%253,t%246,.1),x.fillRect(0,i[i.length-1],1e5,2);x.drawImage(c,2,1)

Oct 4 2019 1:59 AM UTC

}// 132/140

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quick play

u/DataMeta

long watch

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joe.m

function u(t) {

w=60
t?s+=.03:s=0
s>66?c.width|=s=0:0
for(j=34;j-=2;)for(i=22;i-=2,r=C(j*s/i);)
x.fillRect((j-1)*w+.9*w*C(s)*r, (i-3)*w+.9*w*S(s)*r,2,2)

Oct 3 2019 1:30 PM UTC

}// 136/140

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a #rose by any other name would look as sweet

u/joe.m

inspired by https://www.dwitter.net/d/14905
u/13thptr

#epicycloid
u/13thptr

#epicycloids
u/13thptr

#epicycles
u/Xen

love it

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f8f82804

remix of d/10293 by u/f8f82804

function u(t) {

with(x)for(i=c.width=196,translate(98,s=56);i--;fillText('👻',i*S(-t)-s,s-i))rotate(i?1:font='3cm '+(globalCompositeOperation='source-atop'))

Oct 2 2019 7:10 PM UTC

}// 140/140

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ヽ(°〇°)ﾉ

u/katkip

wow
u/Xen

very clever

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