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Origin of Quake3's Fast InvSqrt()

Posted by Zonk on from the i-know-you-were-dying-inside-without-this dept.

geo writes "Beyond3D.com's Ryszard Sommefeldt dons his seersucker hunting jacket and meerschaum pipe to take on his secret identity as graphics code sleuth extraordinaire. In today's thrilling installment, the origins of one of the more famous snippets of graphics code in recent years is under the microscope — Quake3's Fast InvSqrt(), which has been known to cause strong geeks to go wobbly in the knees while contemplating its simple beauty and power." From the article: ""

4 of 402 comments (clear)

  1. A famous quote by ArchieBunker · · Score: 5, Funny

    "English motherfucker, do you speak it?" Anyone care to explain what that function does?

    --
    Only the State obtains its revenue by coercion. - Murray Rothbard
    1. Re:A famous quote by Trigun · · Score: 5, Funny

      But faster!

    2. Re:A famous quote by mogrify · · Score: 5, Funny

      (x^(1/2))^2 != 1

      Interesting smiley... is that a dead man with a fraction in his mouth and a prominent Adam's Apple, wearing a bow tie and a dress and standing on a toy race car?

      What's your point, man?

      --
      perl -e 'foreach(values %SIG){$_="IGNORE";}while(){}'
  2. Re:And so why do we care? by Anonymous Coward · · Score: 5, Funny

    Britney Spears beaver pictures Link please.