3 ms·

Thanks for lifting this up!

• philbarr 8y ago
  My favourite part of the wiki page is: i = 0x5f3759df - ( i >> 1 ); // what the fuck?
  • ddtaylor 8y ago
    I like how they rewrite the code in different ways (type punning) and keep the "what the fuck?" comment intact.
• toolslive 8y ago
  That trick was published in Graphics Gems V (1995) by Ken Turkowski.
  • Someone1234 8y ago
    It seems to pre-date that: https://en.wikipedia.org/wiki/Fast_inverse_square_root#History_and_investigation https://en.wikipedia.org/wiki/Fast_inverse_square_root#Histo...