Dweets awesomed by u/Renaud___

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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khalkeus

function u(t) {

w=960;h=500;c.width=w*2;
for(i=0;i<w*2/9;i++)
for(j=0;j<1;j++){{z=C((i-j)-t)*255;x.fillStyle=R(z,z,z);x.fillRect(i*9,S(t+i)*w/4+h,9,9)}}

Feb 25 2017 12:00 AM UTC

}// 136/140

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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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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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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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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
u/ximavus

Futuristic mario pipe! :D

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robruthco

function u(t) {

(F=Z=>{for(x.fillStyle=R(W=2/Z*1e3,W/2,W/1),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%2-1)*W,(S(t)+m-1)*W,W,W));Z&&F(Z-6)})(36)//rm

Feb 24 2017 4:18 PM UTC

}// 140/140

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u/iverjo

Hi there :) I had to delete #1215 because it froze the browser (due to some excessively deep recursion or something). Here's the code, for reference: (F=Z=>{for(x.fillStyle=R(W=2/Z*1e3,W/2,W/1),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%2-1)*W,(S(t)+m-1)*W,W,W));Z&&F(Z-5)})(36)//rm

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vegolasse

function u(t) {

function a(r){x.arc(S(.3*r)*400,S(.5*r)*730,i,0,Math.PI*2);x.closePath()}c.width=1920;for(i=0;i<2600;i+=30){a(t*1);a(t*2)};x.fill("evenodd")

Feb 24 2017 3:27 PM UTC

}// 140/140

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u/donbright

now that is truly elegant and cool, brilliant use of fill

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shu

remix of d/1199 by u/shu

function u(t) {

c.style.background='#000';c.width=i=1920;for(x.fillStyle='#FFF';i;){x.beginPath();for(j=3;j--;i--)x.lineTo(i,T(i%99*i+t)*140+540);x.fill()}

Feb 24 2017 3:00 PM UTC

}// 139/140

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Sin City

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Renaud___

function u(t) {

r=Math.random;f=g=>Math.floor(256*r());x.fillStyle=R(f(),f(),f(),0.008);for(i=0;i<99;i++)x.fillRect(2220*r()-300,1380*r()-300,600,600);

Feb 24 2017 11:35 AM UTC

}// 135/140

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u/5Mixer

Woah, this is awesome. I've got no idea how it works but it's making a dope picture :D
u/Renaud___

Its only chain of random position square with very very low opacity and random color :]
u/sfz

I'm just... I'm... speechless.

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Renaud___

function u(t) {

c.width=2e3;a=h=f=i=g=600;y=Math.PI/3+t/1e3;while(f++<5*a){for(e=4,z=2;z<a;z*=4)f%z==z/2?e=1:0;i+=e;x.lineTo(g+=C(y*i),h-=S(y*i))}x.fill()

Feb 24 2017 1:20 AM UTC

}// 138/140

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u/Xen

nice

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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).

Show more comments…
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?
u/ximavus

OMG RAY CASTING DUDE

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