Dweets awesomed by u/Nosferatu

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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tomxor

function u(t) {

eval(unescape(escape`琯㴳㭣⹷楤瑨㴴㠰㭣⹳瑹汥㴧晩汴敲㩩湶敲琨ㄧ㭦潲⡩㴱㑥㌻椭ⴻ砮晩汬剥捴⠲㐰⬶〪䌨堩ⵓ⡘⭴⤪娬ㄲ〫㘰⩓⡘⤪䌨天⭓⡙⭴⤪娬ㄬ⡫㵃⡙⭴⤩㰰㼮〴㩫⤩堽椥ㄲ〯㌹ⱙ㵩⼴㙥㈬娽匨䌨匨太ㄷ⤫匨堪ㄷ⤩⼮㌩`.replace(/u(..)/g,"$1%")))

Mar 16 2019 12:37 AM UTC

}// 140/140

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#moon #space

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u/tomxor

golfed a moon... or moon a golf ball?
u/Xen

Nicely Done!
u/katkip

It floating in empty space so probably it's a golf ball hit by Chuck Norris
u/13thptr

lol
u/13thptr

Very nice dweet btw
u/yonatan

Dude!
u/joeytwiddle

#lighting Not a #planet
u/lionleaf

#shading

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tomxor

function u(t) {

c.width=w=96
for(i=5e3;X=i%w,Y=i/w,i--;x.fillRect(X+2*Z,Y+4*Z,.6,1))Z=(.5+S(i/15+t*2)/2)*S(S(Y/8+t)+S(X/24+t)+t),Z=C(2*Z+S((X&Y)/(1+Z*Z))/8)

Mar 2 2019 7:46 PM UTC

}// 140/140

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Fractal Lake

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pavel

function u(t) {

for(k=2e3;i=S(t+k),j=S(i*k--);f&&x.fillRect(960+540*i,540*++j,9,4))d=1-i*i-j*j,f=d**.5*2-i-j,x.fillStyle=R(g=8*f**3,g,g+28*f,1-.05/d)

Feb 28 2019 7:26 PM UTC

}// 133/140

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New_Core

function u(t) {

for(c.width|=i=999;i--;)x.fillRect(960+i/3*S(a=i/9+(500*S(t/5)+500-i)*S(t+i/3)/500),540+i/3*C(a),9,9)

Feb 26 2019 10:48 AM UTC

}// 101/140

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u/tomxor

very nice

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rodrigo.siqueira

remix of d/11965 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=3e3,i);Q=S(--i*i);x.clearRect(960+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,4))b=i%6+t+(t%2>1?0:i)

Jan 28 2019 2:40 PM UTC

}// 140/140

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Torus, spheres, flow and bubbles

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u/rnbw

now THIS is a demo!
u/katkip

Yeah he win
u/13thptr

woah
u/joeytwiddle

Superb! Golf the end with i*(t%2>1) or i*!(t&1)
u/rodrigo.siqueira

Thanks @joeytwiddle for the golf trick. i*(t&1) also works and it's even shorter. And I found that t%4>2?... can be converted to t&2?... It works as a counter to change the function each 2 seconds.
u/yonatan

Also, since T and S take the same arguments (t%4>2?T(b+t):S(b+t)) can be (t&2?T:S)(b+t)
u/lionleaf

Wow! Now we're talking
u/vain

Wow, three fx in this tiny code? Great!

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pavel

remix of d/11963 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=2e3,i);Q=S(q=--i*i);x.clearRect(960*(z+S(b)*3+S(p)*Q)/z,540+960*(C(q)-C(b+t))/z,s=99/z/z,s))z=6+C(b=i%6+t)*3+C(p=i+t)*Q

Jan 26 2019 8:47 PM UTC

}// 140/140

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#uncompressed in black and white

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u/adaq

coolio
u/cantelope

(╯°□°）╯︵ ┻━┻
u/cantelope

this one seems to outperform my original, probably due to all the color calls in mine. One thing I haven't been able to figure out is why the same code performs better on codegolf.tk than dwitter. Not trying to advertise, but it's true and it was just an accidental product of how it was made i guess. E.g. compare d/11913 to https://codegolf.tk/a/366 The code is identical, but on my computer the latter runs visibly smoother. ¯\_(ツ)_/¯ If any plucky ducks want to compare sources, the frontend of codegolf.tk is here https://github.com/srmcgann/codegolf2.0, and the backend: https://github.com/srmcgann/codegolf/blob/ma…
u/rnbw

this is just a wonder to behold
u/joeytwiddle

It's worth investigating cantelope. Someone reported it here: https://github.com/lionleaf/dwitter/issues/4… How can we display framerate on CodeGolf.tk?
u/f8f82804

#d3 #perspective #model

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pavel

function u(t) {

with(x)for(c.width|=j=-8*t%1;j++<32;clip(fill(arc(960+40*j*S(j/9+t/5),700,5e3/j,9,13))))beginPath(fillStyle=R(a=9*j,a,a))

Jan 23 2019 11:54 PM UTC

}// 121/140

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#tunnel using clip()

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u/joeytwiddle

Sir. *applause*
u/jylikangas

Smooth!
u/katkip

:0
u/magna

#pavel
u/iverjo

Very nice!
u/bekfast2390

sick dude!!!
u/vain

Fucking cool!
u/visualDev

I am new here sorry how to run this locally?

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katkip

remix of d/11885 by u/katkip

function u(t) {

seed=4
c.width*=1;for(i=43;i--;)for(j=71;j--;)
x.fillRect(j*30+S(i/seed+t)*100-100,i*30+C(j/seed+t)*100-100,30,30)

Jan 19 2019 6:50 PM UTC

}// 114/140

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It is going up. To go down, change seed=0.02

u/katkip

Haha, this got 20 likes
u/Xen

seed=5+C(t)*2
u/katkip

The perfect straight one is seed=.0123
u/katkip

44 likes om!
u/vain

Very cool and smooth looking fx

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prplz

remix of d/11836 by u/cantelope

function u(t) {

for(c.width|=j=9;j--;)for(x.beginPath(Z=9+(j-t*3)%9),x.lineWidth=9/Z,i=6;i--;x.stroke())x.lineTo(960+S(p=2.513*i+Z/5)/Z*960,540+C(p)/Z*960)

Jan 16 2019 12:38 PM UTC

}// 139/140

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decompression attempt

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f8f82804

remix of d/11689 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/d/.9-1150,s=47-d*2e4,s))a=S(ϕ=i/612),θ=i*37+C(i/99+t),d=Math.hypot(X=S(θ)*a,Y=C(ϕ)+3,C(θ)*a+5)/3e3

Jan 11 2019 8:11 PM UTC

}// 140/140

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#waves on a #perspectives #sphere -- #d3 #pointcloud

u/f8f82804

this dweet uses a better perspective transform based on Math.hypot -- #hypot
u/f8f82804

The projection still isn't perfect, because I'm rotating the sphere's axis towards the viewer by positioning it below the camera. The resulting distortion is approximately corrected by scaling the Y coordinate with /.9.
u/f8f82804

#perspective

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