Dweets awesomed by u/hscells

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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pstefanlarsson

function u(t) {

c.width=1920;
for(i=0;i<100;i++){
a = i % 10;
b = Math.floor(i / 10);
x.fillRect(600+a*80, 140 + b*80, 60*C((a+b+1)*t), 60*S((a-b)*t))
}

Feb 28 2017 7:06 AM UTC

}// 136/140

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u/5Mixer

Woa trip. I love the patterns it makes.

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Jenky

function u(t) {

n=512;r=6.28;for(i=t;i<t+r;i+=r/30){z=i+t;a=-S(i);b=-C(i);x.fillStyle=R(C(z)*n,C(z+r/3)*n,C(z+4.18)*n);x.fillRect(960+S(t)*a*n,n+b*n,9,9)}

Feb 26 2017 8:17 AM UTC

}// 138/140

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Rainbow experiment without 'hsv()'

u/donbright

this is really nice
u/sfz

purdy

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hamptonio

function u(t) {

c.width=1920;for(i=0;i<t;i+=.005){x.lineTo(960+300*(2+C(3*(i+t)))*C(i+t+S(i*t)),540+180*(2+S(3*(i+t)+S(i)))*C(i+t+S(t)+S(i)));};x.stroke()

Feb 25 2017 5:18 AM UTC

}// 138/140

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iverjo

remix of d/89 by u/iverjo

function u(t) {

c.width^=0;for(i=5e3;i--;)p=3*t+S(t/2)*i/3e3+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(960+199*S(p)+249*S(t/.7+i/6e3),i/4-2,199*d,1/(d+1))

Feb 24 2017 6:50 PM UTC

}// 133/140

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Show more comments…
u/SpecialAgent

nicely done!
u/Kalanchoe

Flawless!
u/donbright

oh wow, the shading!
u/sigveseb

Good twister! Can we add color?
u/iverjo

Color would be awesome :) Feel free to try to add it
u/sigveseb

https://www.dwitter.net/d/1267 red
u/iverjo

Here's a purple version. Had to make some compromises. https://www.dwitter.net/d/1278
u/donbright

i attempted a rainbow version https://www.dwitter.net/d/1282
u/iverjo

#twister
u/vain

nice twister

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sigveseb

remix of d/271 by u/3bl3gamer

function u(t) {

W=c.width=255;for(i=9<<12;a=i&W,b=i>>8,n=b-45,m=a-99,i--;x.fillRect(a,b,A=1/(((t+a/n)%2)^b/n),A))n*=(B=(W*S(t*29+n/5)+m*m+n*n)/5e3)<1?C(B):1

Feb 24 2017 12:35 AM UTC

}// 140/140

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Based on some of 3b3lgamer's stuff (remix link got broken).

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u/donbright

dude you are the king,.. O M GOSH
u/Renaud___

Fantastic :S
u/lionleaf

Fixed the remix link for ya :)
u/nashcat

holy sh*t
u/Kalanchoe

H...how? This is so impressive.
u/magna

Needs more music.
u/xem

inhuman
u/donbright

still the one that blew my mind the most.
u/lionleaf

#wobble #wobbly #water #mirror #checkerboard #refraction #sphere
u/Xaotic

wtf
u/firegodjr

#raytracing #best
u/stiaje

#witchcraft
u/sigveseb

This one used to be fast, wonder why it is slow now?

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SingingGoat

function u(t) {

c.width=1920;
for(i=0;i<192;i++){
x.fillRect(0+i*10, 0, 10, 1+1080*S(t+i))
x.fillRect(0+i*10, 1080, 10, 1-1080*S(t-i))
}

Feb 23 2017 1:39 AM UTC

}// 120/140

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sigveseb

remix of d/406 by u/sigveseb

function u(t) {

for(n=c.width=i=2e3;i--;x.lineTo(1e3+n*X/Z,560+n*U/Z))F=S(i),U=C(i),V=i%5-2,Z=V*C(t)-F*S(t)+12+9*S(t/2),X=V*S(t)+F*C(t);x.stroke() // :D

Feb 22 2017 9:36 PM UTC

}// 136/140

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iverjo

function u(t) {

t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/1e11-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(i,j,1,S(k/9))}

Sep 28 2016 1:14 PM UTC

}// 134/140

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Burning ship fractal, zoomed in on an interesting point

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u/iverjo

128 characters: for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

127 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

126 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}
u/donbright

speechless!!
u/iverjo

#fractal
u/iverjo

#burningship

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iverjo

function u(t) {

for(i=6e3;i--;)s=149/(i+200),p=i/97+t*2,c=S(p)*199+T(p)*19,x.fillStyle=R(c,y=99+c,y,.1),x.fillRect(2e3*(T(i/9)+s*t)%2e3,3e3*s-74,q=99*s,q)

Jul 21 2016 3:38 PM UTC

}// 138/140

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Go fullscreen and imagine that you are in a boat travelling to the left. Imagine that you are looking through a wet window, and notice the raindrops that are sliding down the window.

u/PhiLho

Nice! Actually, I see more Peter Gabriel's first solo album cover: http://www.soundstation.dk/images/products/l…
u/iverjo

#water

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3bl3gamer

function u(t) {

c.width=192;for(i=63;k=Math.abs(S(t*4)),a=i*.1+t,i--;)x.fillRect(96+C(a)*25,79+S(a)*25*(k<.2?k*2+.5:1)-k*50,1,1),x.fillText(7,i*4-t*70%9,99)

Jul 20 2016 9:19 AM UTC

}// 140/140

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u/sigveseb

nice
u/joeytwiddle

#bounce

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