Dweets by u/KilledByAPixel

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: #Food

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KilledByAPixel

remix of d/22876 by u/KilledByAPixel

function u(t) {

B=z=>19*C((t+9+z%2|0)**(Y+(z<2)|0))*(z&1?t%1:1-t%1)*(z&2?1-Y%1:Y%1)
for(i=1e3;i--;x.fillRect(i*2-B(0)-B(1)-B(2)-B(3)-19,t*60,1,1))Y=9+i/18

May 31 2021 4:02 AM UTC

}// 138/140

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Moiré Noise

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KilledByAPixel

remix of d/22894 by u/KilledByAPixel

function u(t) {

for(c.width=j=w=64,i=2e5;i--;)(j%w/32*T-T^t+w+T*j/2e3^T)%7?T+=.1:x.fillRect(j%w,j/w,9/T,T=1,++j)

May 30 2021 11:40 PM UTC

}// 96/140

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Sub 100 byte voxel raycasting!

u/tomxor

🤯 took a while to click: pixels and marching in a single for loop! + entire ray calculation inside the fractal (due to orthogonal camera rotation)
u/tomxor

-6 chars for(c.width=j=w=64;j<3e3;)(j%w/32*T-T^t+w+T*j/2e3^T)%7?T+=.1:x.fillRect(j%w,++j/w,9/T,T=1)
u/tomxor

#raymarching

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KilledByAPixel

function u(t) {

for(w=c.width&=i=10368;i--;S[i]=S[i]+C[i]/4||0)x.fillRect(i%w,i/w,1,C[i]=T(i*i*t)>1e5?9:C[i]*.9-(4*S[i]-S[i-1]-S[i+1]-S[i-w]-S[i+w])/5||0)

May 30 2021 9:39 PM UTC

}// 138/140

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Water Ripples 💧

u/aleamb

#water
u/KilledByAPixel

more golfed... for(w=c.width&=i=10368,R=R-1?1:w;i--;S[i]=S[i]+C[i]/4||0)x.fillRect(i%w,i/w,1,C[i]=T(i*t)>5e4?9:C[i]*.9-(2*S[i]-S[i-R]-S[i+R])/3||0)
u/tomxor

#automata (von-neuman outer-totalistic r=1)
u/KilledByAPixel

another byte saved... for(w=c.width&=i=10368,R=R-1?1:w;i--;S[i]=S[i]+v/4||0)x.fillRect(i%w,i/w,1,v=C[i]=T(i*t)>5e4?9:C[i]*.9-(2*S[i]-S[i-R]-S[i+R])/3||0)
u/vain

cool 2d water drop fx

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KilledByAPixel

remix of d/2337 by u/codeslaw

function u(t) {

for(i=213;i--;)t?x.fillText([...'🟨🟧🟥⬜⬛🟦🟩🟪🟫'][(t*60+d%1e6|i)%9],i*9,t*540):d=Date.now()

May 30 2021 9:31 PM UTC

}// 86/140

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Sierpinski Tapestry Generator 🧶

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KilledByAPixel

remix of d/22889 by u/Odog8

function u(t) {

with(x)fillStyle=t?'#cff':`hsl(${Date.now(scale(35,39))} 99%45%`,fillText('IMPOSTOR',!fillRect((z=t?17:0)+5*S(t),z-5*C(t),r=t?21:1e4,r/9),9)

May 29 2021 4:52 AM UTC

}// 140/140

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You are an Impostor 🤫

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KilledByAPixel

remix of d/22883 by u/tomxor

function u(t) {

for(c.width=w=64,a=S(t),p=3e3;B=p--/1e3;x.fillRect(p%w,p/w,2-7/T,T=1))for(A=p%w/32-1;(9-T*A-T*a^t*9+w+T*B|6-T*A*a+T)%15>1;T+=.1);

May 28 2021 10:49 PM UTC

}// 129/140

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Voxel Descent ⛏️

u/KilledByAPixel

More golfed... for(c.width=w=64,p=3e3;p--;x.fillRect(p%w,p/w,2-7/T,T=1))for(A=p%w/32-1;(9-T*A-T*R^t*9+w+T*p/1e3^6-T*A*R+T)&3;T+=.1)R=S(t)
u/tomxor

#raymarching

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KilledByAPixel

remix of d/22883 by u/tomxor

function u(t) {

t?t*=180:X=Y=Z=R=8
for(a=S(R),b=C(R),p=2e3;p--;x.fillRect(p,t,2-8/T,T=3))for(A=p/1e3-1,B=t/800;(X-T*a^Y+T*B^Z+T*(A*b-A*a-b))%15>1;T+=T/99);

May 28 2021 5:33 PM UTC

}// 139/140

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Dweetcraft HD Render ⛏️

Show more comments…
u/KilledByAPixel

I just now realize the t? part isnt necessary
u/taupelink

whoa
u/KilledByAPixel

More golfed: for(a=S(8),b=C(8),p=2e3;p--;x.fillRect(p,t*480,2-8/d,8))for(d=3;(8-d*a^8+d*t^8+d*((p/1e3-1)*(b-a)-b))%15>1;d+=d/99);
u/Toby

what is this sorcery?!
u/rep_movsd

Even this dweet got 100x faster
u/tomxor

#raymarching

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KilledByAPixel

remix of d/22858 by u/KilledByAPixel

function u(t) {

B=z=>C((t+9+z%2|0)**(Y+(z<2)|0))*(z&1?t%1:1-t%1)*(z&2?1-Y%1:Y%1)
for(i=1e3;i--;x.fillRect(i*2+b*9,t*60,b,5))Y=9+i/30,b=B(0)+B(1)+B(2)+B(3)

May 27 2021 2:48 AM UTC

}// 138/140

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Moiré Noisy

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KilledByAPixel

remix of d/22858 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󠬽󮬽󟭓󚌨󦌫󞜫󮬥󜭼󜌩󚬪󚍙󚼨󮬼󜬩󯌰󚜩󚬨󮬥󜬿󦌥󜜺󜜭󦌥󜜩󚬨󮬦󜬿󜜭󦜥󜜺󦜥󜜩󚬱󜼊󩭯󬬨󪬽󜬻󪬭󛜻󮌮󨭥󩽩󫭐󨝴󪌨󮌮󬽴󬭯󪽥󚌩󚜩󩭯󬬨󪜽󜼰󜌻󪜭󛜻󮌮󫍩󫭥󥍯󚍪󟽩󚬹󞭢󛍪󟽢󞭩󚬹󚜩󦜽󪜯󝜫󞜪󪬬󦌽󭌪󝜬󨬽󭌪󝬰󚬲󛝂󚌰󚜭󠬨󜜩󛝂󚌲󚜭󠬨󜼩`.replace(/u../g,'')))

May 25 2021 5:45 PM UTC

}// 137/140

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Noise Grid

u/DataMeta

#art

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KilledByAPixel

remix of d/15036 by u/KilledByAPixel

function u(t) {

s=(a,b,p)=>b*(p*=p*(3-2*p))+a-a*p
r=X=>C(X&Y)
l=_=>s(r(X),r(X+1),X%1)
for(i=2e3;X=--i/40;x.fillRect(i,t*99-n*9,3,n))n=s(l(Y=t*3),l(Y++),Y%1)

May 25 2021 3:07 PM UTC

}// 140/140

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Melt Sierpinski

u/taupelink

excellent
u/erin

has GLSL vibes
u/tomxor

I'll take the two middle ones, to go, hot please
u/Xen

nice!
u/magna

Deep dream vibes

dwitter.net | KilledByAPixel (16501)