Dweets awesomed by u/yonatan

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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: #Food

show FPS hide FPS share 5 remixes fullscreen

New_Core

function u(t) {

c.style.filter=`blur(17px)contrast(2e3%)`
for(c.width|=i=11;i--;)x.fillRect(960+600*S(t+i),440+400*C(t+i/.6),200,200)

Feb 12 2020 4:46 PM UTC

}// 117/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Aha.. so thats how the metabals was done ;)

Show more comments…
u/New_Core

*metaballs
u/New_Core

probably better use arc.. didnt check fullscreen before posting....
u/New_Core

about 60 px blur was ok for fullscreen here
u/KilledByAPixel

nice technique!
u/corruptio

you can just do c.filter right?
u/corruptio

oh nope, nevermind
u/joeytwiddle

#metaballs good job!
u/sigveseb

Contrast filter, that's clever!

show FPS hide FPS share 1 remix fullscreen

tomxor

function u(t) {

R?w=128:c.width=w
for(T=S,S=C,C=T,n=0,i=2e4;j=--i/w|i%w*w;n+=~S[i+5]-~S[i-6])x.fillRect(i%w,j%w,R=frame&1,C[j]=R?n>33&n<59?n<46|C[j]:j&!t:n)

Feb 9 2020 1:38 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#LargerThanLife #Automata Bugs Rule

Show more comments…
u/tomxor

The Larger Than Life "Bugs" rule R5,C0,M1,S34..58,B34..45,NM. You can introduce more entropy by adding spaces to the code (to restart) which causes i&1 to be combined with existing state in the rule's dead space.
u/tomxor

This uses a sliding window to efficiently compute the sum of arbitrary radi Moore neighbourhoods (i.e box blur kernels). It naturally wraps to the next line giving it a kind of twisted toroidal space, which takes less code and is more efficient since it is only necessary to initialise the sliding window once per dimension: O(2n+2r). The FPS is half of what is displayed since every other frame is used to sum the transposed sum of x.
u/tomxor

Other sized w must be a power of 2 and i must be at least w**2+r+1 (r=neighbourhood radius) to allow the sliding window to correctly initialise, otherwise a bad sum will propagate throughout the grid usually causing everything to die.
u/KilledByAPixel

👍 Thanks for the explanation!
u/tomxor

hmm the larger than necessary i seems to be introducing artifacts... change to i=w*w+6 if you want to see the pure rule.
u/katkip

Woow! I remember it from the The Powder Toy game

show FPS hide FPS share fullscreen

KilledByAPixel

function u(t) {

for(z=k=2e3;k--;x.fillRect(i*9+S(z*t)*z|0,j*9+t*420,t?9:z,9))i=k%9,j=k/9|0,x.fillStyle=R(q=t?i*j%2*400*S(k*k*t):k/3+C(k*k)*39,q-99,t?q-k:99)

Feb 7 2020 5:50 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

City Sunset V2

Show more comments…
u/KilledByAPixel

#city
u/DataMeta

I really like this one
u/KilledByAPixel

thanks! me too
u/magna

WOOW@
u/lionleaf

Wonderful dweet!
u/katkip

#sunset
u/aleamb

wow! amazing! #landscape
u/souldzin

Beautiful! Great job!
u/KilledByAPixel

thank you everyone, this is one of my best! check out the remix chain to a few works leading up to it
u/KilledByAPixel

Full explanation: https://frankforce.com/dissecting-a-dweet-9-…
u/KilledByAPixel

Video explanation: https://www.youtube.com/watch?v=vnx8kI4EcVc

show FPS hide FPS share 2 remixes fullscreen

iznax

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𜀻𬀽𚁫👩𙠱𜠷𚐯𝀰𛁏🐲𚠨𪠽𪐾🠷𚐯𝀰𛀫𚱩🀲🀼𜐲𞱸𛡦𪑬𫁒𩑣𭀨𞐶𜀭𠰨𣰩𚡓𚁰𚐪𝐰𜀬𝐴𜀫𠰨𬀩𚠵𜀰𛀲𝀬𜐲𚐩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𩰽𤰨𚁪𚱴𚠴𜀮𝐩𙡫𚐪𞀰𚠨𜠮𞀭𣰩𚠨𚁰𛐲𛠰𚐪𚠲𚰨𚀲𚡴𚱏𚐥𝠮𜠸𛐲𛠱𚐪𚠲🀰𛠱𞀿𛠲𞠱𚐬𩰬𩰩`.replace(/u../g,'')))

Feb 7 2020 4:58 AM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Star killer? More like CPU Killer

Show more comments…
u/13thptr

nice
u/Xen

thats no moon!
u/13thptr

-19 with some sacrifices..don't know if this could fit... perhaps you could remove fillStyle and use the subpixel rectangles
u/13thptr

for(i=8e3;p=(k=i&127)/40,O=(j=i>>7)/20,i--;x.fillRect(960-C(O)*S(p)*500,540+C(p)*500,24,12))x.fillStyle=R(g=S((j+t*41)&k)*80*(3-O)*((p-2)**2+((t+O)%6.3-2)**2<.2?.2:1),g,g)
u/13thptr

*subpixel rectangles method, but that would run even slower
u/joeytwiddle

as if millions of motherboards cried out in pain and were suddenly overheated

show FPS hide FPS share 1 remix fullscreen

rodrigo.siqueira

remix of d/12354 by u/rodrigo.siqueira

function u(t) {

for(a=b=i=2e4;i--;x.fillRect(960+99*a,540+99*b,.1,1))r=Math.random(),[a,b]=r>.5?[S(b)*8,C(a*b+t)*5]:[S(b/3)*5,a/3]
x.fillStyle=R(b*60*(i%3))

Feb 5 2020 12:33 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Into the abyss of rectangles #recursive

u/DaSpider

Where is the recursion?
u/rodrigo.siqueira

Each [a,b] is defined by the previous state of [a,b], so it's actually iterative.. It's based on IFS (Iterated Function System) with transformations are based on a probability.
u/sigveseb

That shading ends up looking really nice!
u/tomxor

Yeah, really nice texture!
u/lulasz

Looks like pencil drawing 🤔

show FPS hide FPS share fullscreen

Xen

remix of d/17407 by u/iznax

function u(t) {

for(c.width=z=q=1e3,x.fillRect(0,0,z,z);--q;r=q%22,x.fillStyle=R(r*r,h,q,.2),x.fillRect(r*42,300+S(t+r*t/5)*h+S(t)*99,h,6))h=q/5

Jan 30 2020 2:59 PM UTC

}// 128/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Shoutz 2 iznax

show FPS hide FPS share fullscreen

KilledByAPixel

remix of d/15354 by u/KilledByAPixel

function u(t) {

for(w=i=125;i--;)for(j=0;j<8;x.fillRect(i*20,j++?w*j+299*C((t*j*j+i/j|0)**3)/j:0,20,3e3))x.fillStyle=`hsl(${j**4-149} ${j*7}%${29*C(j)+39}%`

Jan 27 2020 1:44 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

City Outskirts

u/tomxor

Nice, you got the colours just right, I couldn't quite figure that bit out. #city
u/pavel

Just a black screen on Safari
u/KilledByAPixel

fixing up the hsl to have commas and closing paren may fix some browsers
u/tomxor

Safari is wrong, they should this dweet as a unit test :)

show FPS hide FPS share fullscreen

KilledByAPixel

function u(t) {

eval(unescape(escape`𭀪🐵𝀰𒡡👴𛐱𝀲𜀰𒡷👡🁔𒡢👡🠰𙡡🀱𞀰𜀊𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱢🰹𞠹𛑴𛰶𞑽𘀤𮱢🰹𞠶𞑽𙐠𙁻𨠿𭰪𞐺𞐰𚱃𚁴𛱔𚐪𞐭𭀯𜠰𜁽𙑠𒡸𛡦𪑬𫁒𩑣𭀨𨠿𜐹𞐫𨐺𭀥𜡥𜰬𨠿𝠰𜀭𚁡𚠪𛠱𚠶𜐥𜠫𝱼𜀩𚠴𞐪𚁷🱡𛱔𞠱𚐺𭀯𜐹𚱃𚁴𛰳𞐹𚐪𜰹𛀭𞐬𥀽𜑥𜰩`.replace(/u../g,'')))

Jan 22 2020 7:40 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Slow #Castle (takes about 30 seconds)

u/KilledByAPixel

Final result https://imgur.com/JwjEImV
u/magna

#waitforit
u/magna

WOW!
u/KilledByAPixel

Behind The Castle

show FPS hide FPS share fullscreen

iznax

function u(t) {

c.width=800;p=(a)=>x[b](400+S(a)*"4335"[k>>1]*32,90+C(a)*8+k*48)||p;for(z=43;--z;p(t,b='moveTo')(t+=7,b='lineTo')(t,++k)(t-7),x.fill())k=z%7

Jan 22 2020 6:11 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#Castle Rook

u/KilledByAPixel

♜👍

show FPS hide FPS share fullscreen

yonatan

remix of d/10782 by u/yonatan

function u(t) {

for(i=c.width=99;i--;)for(k=j=56;j-->-k;)x.fillRect(i,j/2+28,1/t,j>0?(S(j*j+i/j-t*7)+C(j**5-i/j*6+t)**3)*j/k:Math.hypot(j+t*9,i-k)/300/t)

Jan 20 2020 6:48 PM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

sunrise

Show more comments…
u/denzen

Amazing!
u/tomxor

Holly **** ! or a nuke on the horizon :P
u/aleamb

Brutal!!!
u/aleamb

#sunrise #sea #landscape #sun
u/13thptr

thought about a nuke too x) gret job
u/13thptr

*great
u/katkip

!! awesome
u/Leodude123

Coll
u/Leodude123

Sorry I misspelled that
u/Leodude123

I meant cool!
u/eduft15

nice man!

dwitter.net | yonatan (19541)