Misty mountain fog #smoke by rodrigo.siqueira

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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rodrigo.siqueira

remix of d/24908 by u/rodrigo.siqueira

function u(t) {

with(x)for(i=800;i--;fillRect(~setTransform(i,0,0,i,880+i+3*i*C(i),700+2*i*C(i/400)),~rotate(i/6+t/2),2,2))fillStyle=R(i/5,i/4,i/3,.07)

Feb 11 2022 12:45 PM UTC

}// 135/140

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Misty mountain fog #smoke

Show more comments…
u/tomxor

Simple but very effective!
u/aleamb

wow!
u/vain

OMG! It looks so great. Where do you guys get the ideas & math formulas from?
u/magna

O M G
u/rodrigo.siqueira

u/vain It is the combination of rotations, scaling and translations (setTransform) and transparent color (.07 opacity). I remix and play with parameters and all stems from u/pavel 's Underwater cavern: https://www.dwitter.net/d/18597 My previous dweets are also remix of it. The math formulas (sin and cos) are not the main thing, they just create some almost random numbers with cyclic properties. I can not predict the result only looking to the formulas. I remix and explore combinations and post when I find interessting results.
u/vain

u/rodrigo.siqueira Thank you for your feedback and the nice and detailed description. Keep on your nice work! ;-)
u/joeytwiddle

Beautiful! #cloud #mountain #scene


      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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