Dweets awesomed by u/szymski

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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Current theme challenge: #Opposites

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jylikangas

function u(t) {

with(x)for(i=16,c.width=198;i--;stroke()&drawImage(c,globalAlpha=.1,i))lineTo(99+S(t+=(7-i)%2/.64)*99/(Z=(t<6)+1+C(t)),49+((i%4/2<<6)-25)/Z)

Mar 28 2018 5:24 AM UTC

}// 140/140

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White room traps you!

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u/aemkei

Stunning. As always.
u/joeytwiddle

Whoa! 😮
u/zanella

There's. A. Reflection. In. The. Floor.
u/loni_art

jesus!
u/iverjo

Well done!
u/DirtyDan

Remixed: d/7500
u/DirtyDan

whoops, wrong dweet
u/DirtyDan

Well this was a train wreck, wrong link too
u/jylikangas

http://jsriffs.blogspot.fi/2018/04/making-of…
u/joeytwiddle

#renderer #reflection #raytrace (or looks like it anyway)

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yonatan

remix of d/7105 by u/yonatan

function u(t) {

for(X=c.width=99;X--;)for(Y=57;Y--;x.fillRect(X,Y,1,1))q=X*X+Y*Y,z=(9e3-q)**-.3,x.fillStyle=`hsl(${(t*9+X*z^Y*z)*22},50%,${95-q**.5}%`

Feb 28 2018 10:31 AM UTC

}// 134/140

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lit and colored

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u/donbright

!!!!!!!!!!!!!!
u/sigveseb

Lit af
u/magna

^
u/joeytwiddle

#lighting #sphere
u/FireFly

Holy cow!! :o
u/Cloud

Wooooow!!!
u/vain

amazing!

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sandromiccoli

remix of d/5854 by u/sandromiccoli

function u(t) {

c.width=2e3;x.globalCompositeOperation='xor';for(i=~~(t*9);i--;){a=i*.52;x.beginPath();x.arc(960+C(a)*199,540+S(a)*199,199,0,7);x.fill()}

Jan 13 2018 3:30 AM UTC

}// 137/140

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little donut remix: d/5999

u/iverjo

#xor

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AliYil

remix of d/4139 by u/AliYil

function u(t) {

for(i=0;i<20;i++)for(j=0;j<12;j++){s=S(i+j-t*5)*25+25
x.fillStyle=`hsl(${t*90+(-j+i)*20},100%,50%)`
x.fillRect(i*100-s,j*100-s,s*2,s*2)}

Dec 28 2017 8:55 PM UTC

}// 136/140

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u/Xen

nice, tried: hsl(${t*s+( ?
u/AliYil

You mean hsl(${t*s+(-j+i) ? Looks good for a few seconds, then hurt my eyes afterwards lol

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nystrand

function u(t) {

for(i=w=3e3,a=b=g=333*T(t%9/7);j=(i^a*a)%4,i--;x.fillRect(a+=g+C(j*5+t)*g-a/2-w+g,b+=g+S(j*9+t)*g-b/2-w,s,s),w=2)x.fillStyle=R(s=w*9,w,s,.1)

Dec 28 2017 2:50 PM UTC

}// 140/140

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Show more comments…
u/sigveseb

This one is fantastic! Good job indeed
u/Bendoman

Brilliant!
u/Xen

very very impressive!
u/magna

HOW ON EARTH
u/nic

MIND:=BLOWN
u/lowpoly

Gawd, I learnt a lot today
u/Citiral

Since when does Javascript support black magic?
u/sigveseb

Needs more upvotes!
u/doof

this was such a delight to unpack :)
u/Lazy1337

wow
u/aleamb

amazing
u/iverjo

I'm awestruck
u/xem

unbelievable
u/trapkid

lol
u/aleamb

epic! one of the greatest dwitter
u/ThreeNPlusOne

sierpinski triangle :D
u/xem

It'd be nice to have a blog post explaining it :) (please?)
u/trupples

I didn't look much into it but it might have to do with a thing I read about once where if you have a point that "walks" half the distance towards a random corner of a triangle you'll end up drawing a sierpinski triangle sorta like you can see in https://www.dwitter.net/d/5097
u/trupples

And according to http://distrustsimplicity.net/articles/sierp… if you were to use 4 points instead of 3 you'd get a tetrahedron like in this dweet. Fascinating stuff
u/stiaje

#witchcraft
u/lionleaf

#top_of_the_year
u/Scaledish

wow
u/Tekmap

👏👏👏👏👏
u/vain

that's not from this world! incredible code / 3d fx and blur
u/rodrigo.siqueira

3D flying #sierpinski pyramid #fractal

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jaemiejaemie

function u(t) {

c.width=640;x.beginPath();for(i=0;i<640;i++){a=180;for(j=1;j<t*60%60;j+=~~(t)%2+1){a+=S((i+t*60)*j/20)*50/j}x.lineTo(i,a)}x.stroke()

Dec 27 2017 10:31 AM UTC

}// 132/140

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demonstration of basic fourier curves (square/saw)

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u/sigveseb

Very cool!
u/joeytwiddle

Nice. DSP hero!
u/iverjo

Kudos!
u/RomanW

Excellent!
u/joeytwiddle

#math
u/katkip

#fourier

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szymski

function u(t) {

y=100;c.width|=0;r=3.14159;o=(-2+(t/10%1)*24)*y;a=o/141.42;x.translate(o,950-y/r*S(a*2%r));x.rotate(a);x.fillRect(-y,-y,200,200);

Dec 26 2017 8:52 PM UTC

}// 129/140

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u/lionleaf

Welcome to dwitter! Neat one :D
u/sigveseb

ooh 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).

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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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