conga bump #default #dance (the first v… by BriSeven

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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BriSeven

remix of d/18118 by u/BriSeven

function u(t) {

c.width|=e=24
for(i=9,b=400,d=(C(t*3)+C(t*9))**3*e;i--;)h=i/4,g=t+h,x.fillRect(940+S(g)*(b+d),(f=C(g)*50)+b-C(g*e)*e,f,(-C(g)+1)*100+100)

Apr 3 2020 11:46 AM UTC

}// 137/140

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conga bump #default #dance (the first version was missing something)

u/pavel

shouldnt they get thinner in the back, not wider?
u/pavel

Here is a rough starting point using real orthographic projection for(c.width|=i=9;i--;x.fillRect(960+2e3*S(a)/z-s/2,540+2e3*y/z-s*2,s,4*s))y=S(i+t*39)/99,z=3+C(a=i/8+t),s=99/z
u/BriSeven

they get thinner at the edges and shorter in the back. the fatter appearance is an optical illusion from the perspective
u/BriSeven

i imagine them as thin sheets of material rather than as cylinders.
u/BriSeven

it would probably look better if the front and back had the same aspect ratio but there’s only room for so many sine/cosine functions


      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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