my second julia-like fractal made from … by katkip

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.

show FPS hide FPS share 1 remix fullscreen

katkip

remix of d/19192 by u/katkip

function u(t) {

f=(x,y,n=20)=>n>0?f(2*x*y-.1,.7-y*y+x*x,n-.5):x
q=x=>S(x);for(i=3999;i--;)f(X=q(i*t+t/9)*2,Y=q(i*t)*4)?x.fillRect(Y*540+960,X*540+540,3,3):0

Jun 19 2020 1:37 PM UTC

}// 140/140

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

my second julia-like fractal made from scratch o_O #slowrender #julia #fractal

u/katkip

i discovered a short rendering method
u/katkip

q=x=>S(x) was initially a random function between -1 and 1


      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)

dwitter.net