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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.
Theme challenge of the month: #glass
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Xen

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  • u/Xen
    SiO₂
  • u/tomxor
    Nice! although i think technically crystaline makes it quartz; glass is amorphous but I no idea how that would look.
  • u/Xen
    you got me 🤣🤣🤣

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  • I would love to find a better / shorter 1D noise function #challenge
  • u/pavel
    This one assigns a 'random' number to each integer k via S(k*k) and uses smoothstep to interpolate between them.
  • u/pavel
    Another idea to play around with f=(i,n=9)=>n&&C(n**.5*i)/n+f(i,n-1)

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  • This American Life Logo, Host is Ira #glass
  • u/WorldMerge
    Original uncompressed code: z=500;x.fillRect(0,0,z,z);x.fillRect(z+100,0,z*4,z/3);x.fillRect(z+100,z/1.5,z*4,z/3);x.fillRect(0,z+100,z*4,z/3);x.font="500px a";x.fillText("◤",z-100,z+z);
  • u/WorldMerge
    I used u/metamero 's compressor: https://www.dwitter.net/d/11852
  • u/13thptr
    Hi :) your code can be shortened so that it fits into 140c without compression : z=500;x[s="fillRect"](0,0,z,z);x[s](600,0,z*4,z/3);x[s](600,z/1.5,z*4,z/3);x[s](0,600,z*4,z/3);x.font="500px'";x.fillText("◤",400,z+z)

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remix of d/18074 by u/pavel

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xem
remix of [deleted]

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  • Experiment: show every emoxi as a 16*16px sprite with crisp edges (Fixed for Fx & Chrome)

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  • The Train Is Leaving The Station

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  • Show more comments…
  • u/pavel
    I think I figured it out. If you set s=12 the structure becomes more apparent. +t*C(i) doing SO MUCH WORK is an amazing accidental find.
  • u/pavel
    This certainly looks like a 2d projection of something 3d, how to get the depth information?
  • u/pavel
    The trick is to rng three 2d vertices and smoothly vary them. Every combination uniquely maps to a valid 2d projection of a 3d plane so our brains infer the 3d shape.
  • u/pavel
    for(c.width|=i=3;i--;x.lineTo(960+500*S(i*t),540+500*S(i+t)));x.fill()

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  • Quarantine Door

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