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.

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hamptonio

remix of d/1203 by u/vegolasse

function u(t) {

q=43;function a(r){x.arc(q+S(r/3)*400,q+S(r/2)*730,i,0,6.283);x.closePath()}c.width=q*q;for(i=0;i<q*q;i+=9){a(t);a(S(t))};x.fill("evenodd")

Feb 25 2017 1:10 AM UTC

}// 140/140

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seems like that evenodd method could do some other cool shit

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gormisdomai

function u(t) {

c.width=999
w=20
for(X=-6;X<7;X++)
for(Y=-6;Y<7;Y++){
x.beginPath();x.arc((X+S(t)*Y%7)*w+450,(Y+C(t)*X%7)*w+260,w,0,7,0);x.stroke()}

Feb 25 2017 1:05 AM UTC

}// 133/140

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u/iverjo

Cool, it almost looks like 3D
u/gormisdomai

You're right, maybe I should not try to make one which actually does the 3D rotation calculations

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sfz

remix of d/1262 by u/khalkeus

function u(t) {

b=480
m=99
for(i=1;i<m;i++)for(j=1;j<m;j++)q=t+j,v=S(-q),x.fillStyle=R(2*j*C(t),2*i*v,4*j*v),x.fillRect(2*b+S(i/j)*C(q)*b,b+S(i*j)*v*b,9,3)

Feb 24 2017 11:25 PM UTC

}// 139/140

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u/donbright

reminds me of cells dividing

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khalkeus

function u(t) {

w=960;h=540;c.width=w*2
for(i=0;i<99;i++){for(j=0;j<99;j++){
x.fillRect(S(i-j)*C(t+j)*w+w,S(i+j)*S(t+j)*h+h,5,2)}}

Feb 24 2017 10:38 PM UTC

}// 114/140

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u/Purpzie

Shaved off 12 characters: for(c.width|=a=0;a<9801;)x.fillRect(S((i=0|a++/99)-(j=a%99))*C(b=t+j)*960+960,S(i+j)*S(b)*540+540,5,2)

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aemkei

function u(t) {

c.width^=0;t||(I=140,p=[]);for(p[I++*I%41+
3178]=i=599;i++<3230;
)x.fillRect(i%70*20,i/70*20,p[
i]=p[i]+p[i+1]+p[i+69]+p[i+70]>>2,12);

Feb 24 2017 10:18 PM UTC

}// 134/140

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Fire and smoke

Show more comments…
u/iverjo

Neat!
u/donbright

dang this is cool.
u/sigveseb

can we add colors? :D
u/Kalanchoe

This is quite pretty!
u/Beginner

Needs colors :D
u/Xen

Color added: #3002
u/joeytwiddle

#fire

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jprctr

function u(t) {

d=24
for(i=1;i<81;i++){
for(j=1;j<46;j++){
v=125+C(t+(j-23)*+(i-40)*S(t))*125
x.fillStyle=R(v,v,v,0.1) 
x.fillRect(i*d,j*d,d,d);
}
}

Feb 24 2017 9:21 PM UTC

}// 133/140

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u/Uruwi

Reminds me of wavefunction collapse.
u/rhys5584

nice
u/rhys5584

nice
u/katkip

#moire

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sfz

function u(t) {

for(a=n=480,v=t;n>v;n+=(v-S(v))/C(v),v=n)e=0.9
j=C(v)
k=1-e*j
x.arc(a+a+a*e*(j-e)/k,a+a*e*Math.sqrt(1-e*e)*S(v)/k,0,9,1)
x.stroke()

Feb 24 2017 9:12 PM UTC

}// 131/140

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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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iverjo

remix of d/104 by u/iverjo

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=2)s=3/(9.1-(t+i/99)%9),x.beginPath(),j=i*7+S(i*4+t+S(t)),x.lineWidth=s*s,x.arc(960,540,s*49,j,j+.6),x.stroke()

Feb 24 2017 6:47 PM UTC

}// 138/140

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Show more comments…
u/SpecialAgent

my hat goes off to you sir!
u/Kalanchoe

That's unbelievable
u/iverjo

Try this one in fullscreen for a more immersive experience
u/Niklas

impressive!
u/donbright

:)
u/aendrew

This is incredible.
u/vonzo

reminds me to Gescom <3
u/hvge

http://www.pouet.net/prod.php?which=3397 ❤️
u/badthai

How did you come up with this?
u/iverjo

@badthai: First I made a classic tunnel effect (like this: https://www.dwitter.net/d/205). Then I made several remixes of it by tweaking parameters. This was one of the results. See also https://www.dwitter.net/d/106
u/iverjo

#tunnel
u/vain

cool segmented tunnel fly

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iverjo

remix of d/197 by u/iverjo

function u(t) {

c.width^=0;n=900;for(i=9;i++<n;)p=t+i/99,s=3/(9.1-p%9),x.beginPath(),x.lineWidth=s*s,x.arc(n+99*S(p),300*s,49*s*S(i/159),i,i+1),x.stroke()

Feb 24 2017 6:44 PM UTC

}// 138/140

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Snek!

u/joeytwiddle

Bless the coming and going of Him. May His passage cleanse the world.
u/iverjo

#3d

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