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function u(t) {
} //
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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: #growth
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remix of d/11051 by u/katkip

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ben
remix of d/4509 by u/ben

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  • blowing in the fractal wind

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ben

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  • u/iverjo
    115 bytes: for(j=1080;j--;a=b=0){for(k=35;k--&&a*a+b*b<4;a=y)y=a*a-b*b+t*60/540-2,b=2*a*b+j/540-1;x.fillRect(t*60,j,1,S(k/9))}
  • u/iverjo
    Here's one that draws faster: for(i=4;i--;){for(j=1080;j--;a=b=0){for(k=35;k--&&a*a+b*b<4;a=y,l=t*240+i)y=a*a-b*b+l/540-2,b=2*a*b+j/540-1;x.fillRect(l,j,1,S(k/9))}}
  • u/iverjo
    Nvm, they depend on various variables being defined. I was fooled.
  • u/myJS
    How about colors? t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1,a=c;x.fillStyle=R(k,j,i);x.fillRect(i,j,1,S(k/9))}
  • u/sfz
    Nice enhancement myJS!
  • u/lionleaf
    #scanline #slow_render #fractal #fractals

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