dithered donut #sdf by vgel

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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vgel

remix of d/27290 by u/vgel

function u(t) {

eval(unescape(escape`景爨眽瀽挮睩摴桼㵈㵍慴栮桹灯琻瀫㴲㜹ⱘ㴨儽瀥眩⼱攳ⴱⱙ㴨圽瀯睼〩⼵〰ⴱⱰ㰲收㭸⹦楬汒散琨儬圬猽㘰⽩ⱳ⤩景爨娽椽䐽ㄻ⬫椼㤦䐾⸱㬩娭㵄㵈⠨䠨⡃⡴⤪堭匨琩⩚⤬天⴮㐩Ⱘ䌨琩⩚⭓⡴⤪堩⤭⸱`.replace(/u([^D].)/g,'$1%')))

Mar 29 2023 7:06 PM UTC

}// 140/140

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dithered donut #sdf

u/vgel

got inspired by d/16174 for some ways to shrink it further :-)
u/Xen

shaved a few: for(w=p=c.width|=H=Math.hypot;p+=279,X=(Q=p%w)/1e3-1,p<2e6;x.fillRect(Q,W,s=60/i,s))for(Z=i=D=1;++i<9&D>.1;)Z-=D=H((H((C(t)*X-S(t)*Z),(W=p/w)/500-1)-.4),(C(t)*Z+S(t)*X))-.1
u/joeytwiddle

Nice effect!


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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