Going for a weave texture by clauswilke

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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clauswilke

remix of d/25936 by u/KilledByAPixel

function u(t) {

x.globalAlpha=0.01;
for(Y=0,i=3000;i--;)x.fillRect(i,Y+t*159,1,Y+=C(i*i*t))
for(Y=0,i=2000;i--;)x.fillRect(Y+t*159,i,Y+=C(i*i*t+500),1)

Aug 13 2022 11:28 PM UTC

}// 135/140

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Going for a weave texture

u/KilledByAPixel

nice!
u/clauswilke

Was mostly just trying to understand your code. The C(i*i*t) is just to generate randomness, correct? And instead of transparency, you draw fractional pixels.
u/KilledByAPixel

that's pretty much it. C(i*t) gives a good random walk that varies slightly around 0, one of the smallest ways to make noise like this


      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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