New #scanline dweets

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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katkip

remix of d/10045 by u/katkip

function u(t) {

a=t*60%60;for(n=z=w=0;n++<99&z*z+w*w<4;[z,w]=[z*z-w*w+a/20-2,n*z*w+~~t/20-1])x.fillStyle=`hsl(${n*n},99%,50%)`,x.fillRect(a*32,~~t*27,32,27)

Sep 23 2018 1:28 PM UTC

}// 140/140

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Brainbrot #fractal

u/iverjo

#scanline

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f8f82804

remix of d/9163 by u/f8f82804

function u(t) {

X=frame%240;for(Y=64;Y--;)x.fillStyle=`hsl(${90*S(t)*Y/(k=Y-72)} 90%${50*((X-120)/k+9+(frame/240|0)&1^Y/k&1)}%`,x.fillRect(X*8,1080-Y*8,8,8)

Aug 8 2018 11:39 PM UTC

}// 140/140

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#rainbow #checkerboard -- #d3 #raytrace #scanline #smooth

u/katkip

This is less laggy

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DataMeta

remix of d/1428 by u/irregularshed

function u(t) {

for(i=1920;i--;)v=(t*60)%1080,l=(i^v)%256&frame,
x.fillStyle=R(l,l/4,l*3),x.fillRect(i,v,1,1)

Aug 4 2018 6:59 PM UTC

}// 93/140

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Simple test inspired by firegodjr's bitwise dweets

u/fujimotos

#scanline #slow_render

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firegodjr

remix of d/8941 by u/firegodjr

function u(t) {

if(!t)c.width=400,v=0
F=n=>{for(i=n;i-->2;)n=n%i==0?0:n;return n>1}
v++
for(j=400;j--;)F(j^v)?x.fillRect(j,v,1,1):0

Jul 26 2018 9:21 PM UTC

}// 115/140

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This is your brain on bitcoins. #prime

u/DataMeta

Good stuff. I see the death star trench
u/fujimotos

#scanline
u/fujimotos

#slow_render

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joeytwiddle

remix of d/7301 by u/yonatan

function u(t) {

for(x.beginPath(i=1920);i--;x.lineTo(i,t%9*99+(Y|0)*8*t))for(Y=0,j=4;j--;)Y=Y+S(((i-960)/t+S(t+Y)*299*j*j/t)/(40*2**j));
t<9&&x.stroke()

Mar 12 2018 11:13 AM UTC

}// 136/140

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jagarikin inspired wireframe landscape

Show more comments…
u/joeytwiddle

Nice work by yonatan. I am happy to abuse all the spare characters they saved!
u/joeytwiddle

To finish it off: s/t%9/t/ ; s/t<9/t<15/
u/aleamb

wow! love it!!
u/iverjo

Neat!
u/iverjo

#landscape
u/fujimotos

#scanline
u/fujimotos

#slow_render

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yonatan

function u(t) {

for(x.beginPath(i=1920);i--;x.lineTo(i,t*99+(Y|0)*99))for(Y=0,j=4;j--;)Y=Y+S((i+S(t+Y)*99*j*j)/(40*2**j))
x.stroke()

Mar 12 2018 11:01 AM UTC

}// 116/140

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https://twitter.com/jagarikin/status/9715426…

u/aleamb

fucking cool!
u/fujimotos

Great! This really opens up whole new space...
u/fujimotos

#landscape
u/fujimotos

#scanline
u/fujimotos

#slow_render

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iverjo

remix of d/123 by u/icecuber

function u(t) {

i=frame;for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1,a=c;x.fillStyle=R(k,j,i);x.fillRect(i,j,1,S(k/9))}

Feb 22 2017 6:10 PM UTC

}// 140/140

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Color version, a minified version of myJS's suggestion

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u/bakkot

golf'd slightly harder on general principles: i=frame;for(j=1080;j--;x.fillRect(i,j,1,S(k/9),x.fillStyle=R(k,j,i)))for(a=b=0,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1
u/donbright

niiiice
u/Krachwumm

This is freaking amazing. Even if it would have taken you 1000 characters
u/iverjo

Thanks bakkot! I golfed your version even further down to 134 characters: for(j=1080;j--;x.fillRect(i=frame,j,1,S(k/9),x.fillStyle=R(k,j,i)))for(a=b=0,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1
u/iverjo

Feel free to play with the colors! There's room for improvement
u/hamptonio

That's a work of art man
u/SpecialAgent

I must commend you! Did my research and got a working mandelbrot, but to golf it to 140 and get the speed is very very difficult! Wow. I will study your dweet now :)
u/iverjo

#fractal
u/iverjo

#mandelbrot
u/iverjo

#slow_render
u/f8f82804

#scanline

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3bl3gamer

function u(t) {

for(i=2<<14;a=frame*8+i%8,b=i>>3,m=a-999,n=b-999,i--;)l=m*m+n*n,l<8e5&&(n*=C(l/3e5-2.6)),(((m/n+9999)%2)^(b/n%2))&&x.fillRect(a/2,b/2,.7,.7)

Aug 19 2016 8:05 AM UTC

}// 140/140

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Just to see hi-res version of this https://dweet.dwitter.net/id/281?autoplay=1

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u/3bl3gamer

Looks a bit better in FF
u/donbright

oh wow this is cool, space time warp!
u/joeytwiddle

#render
u/lionleaf

#slow_render #scanline
u/Lazy1337

One of the best dweets
u/kkingsbe

How is this possible lol

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icecuber

function u(t) {

t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1,a=c;x.fillRect(i,j,1,S(k/9))}

Apr 13 2016 1:46 PM UTC

}// 122/140

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u/iverjo

115 bytes: for(j=1080;j--;a=b=0){for(k=35;k--&&a*a+b*b<4;a=y)y=a*a-b*b+t*60/540-2,b=2*a*b+j/540-1;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

Here's one that draws faster: for(i=4;i--;){for(j=1080;j--;a=b=0){for(k=35;k--&&a*a+b*b<4;a=y,l=t*240+i)y=a*a-b*b+l/540-2,b=2*a*b+j/540-1;x.fillRect(l,j,1,S(k/9))}}
u/iverjo

Nvm, they depend on various variables being defined. I was fooled.
u/myJS

How about colors? t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1,a=c;x.fillStyle=R(k,j,i);x.fillRect(i,j,1,S(k/9))}
u/sfz

Nice enhancement myJS!
u/lionleaf

#scanline #slow_render #fractal #fractals

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icecuber

function u(t) {

k=256;for(i=-k;i<k;)j=t*9-k,d=6e4-i*i-j*j,f=Math.sqrt(d)*2-i++-j,g=f*f*f/2e6,x.fillStyle=R(g,g,g+f*.1,1-2e3/d),f?x.fillRect(i+k,j+400,1,1):0

Feb 19 2016 5:45 PM UTC

}// 140/140

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u/donbright

nice
u/donbright

like really nice!!!!!
u/donbright

lol this should have 100 likes by now
u/lionleaf

#slow_render #scanline
u/iverjo

#smooth
u/rep_movsd

#render #3d
u/rep_movsd

#underrated

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