new #redchallenge for anyone who wants:… 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

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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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katkip

function u(t) {

c.parentNode.replaceChild(z=c.cloneNode(false),c)
c=z;g=z.getContext`webgl`;g.clearColor(t,0,0,1)
g.clear(g.COLOR_BUFFER_BIT)

Jun 13 2020 8:19 PM UTC

}// 125/140

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new #redchallenge for anyone who wants: create a red background. #webgl

u/pavel

104 c.replaceWith(c=c.cloneNode(false));with(c.getContextwebgl)clearColor(t,0,0,1),clear(COLOR_BUFFER_BIT)
u/pavel

I've no experience with webgl but it seems like you need twenty lines of code to draw a square...
u/katkip

That's true
u/New_Core

I've no experience with webgl either.. but saw you could do a square just adding: enable(SCISSOR_TEST),scissor(200,200,400,500) ..to clear a rect in that pos and size ..


      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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