Spatial Contradiction (#art reproductio… 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

function u(t) {

for(j=9;j--;)for(i=2e3;i--;x.fillRect(X,Y,85,2))x.fillStyle=R(k=i%2*180,k,k),k?(X=i/5+j*170+49,Y=i):(X=j*170+377-i/22,Y=i/5+360)

Dec 12 2021 4:03 PM UTC

}// 128/140

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Spatial Contradiction (#art reproduction) #default artwork from 1958 by Waldemar Cordeiro, a pioneer in the use of computer in the arts in Brazil and Latin America. He was the precursor, theorist and leader of the concrete movement in Brazil. Original name: "Contradição Espacial".

u/magna

Awesome! :)
u/magna

Scrolling up and down, this creates the optical illusion that the bars are shifting left and right
u/neimad

that's a neat trick!


      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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