dwitter.net | hypothete (102)

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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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  • donbright: seems nice and fast for animations.. e=144;d=new ImageData(w=c.width=255,e); for(i=w*e;i--;){ c=S(t)*(i%w)**2+C(t)*(i/w)**2; d.data.set([c%w],i*4+3)} x.putImageData(d,0,0)

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remix of d/2069 by u/veubeke

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  • recursive: Direct pixel manipulation. Interesting approach but it looks like it might always be larger. Does this have a dweeting application?
  • hypothete: I'm not sure. I put this one together in case people had ideas on how to shrink it.
  • veubeke: @hypothete new ImageData(W,H) saves some bytes as does incrementing i by 1 instead of 4 and calculating image data size manually. https://www.dwitter.net/d/2069

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