Cool Code - Quake 3 Fast InvSqrt() - Particl Digital
Por um escritor misterioso
Descrição
Ever play Quake while growing up? Aside from the game itself, the code written to build it is home to a small piece of history in being able to get around the very expensive inverse square root function using very accurate, very fast approximation. The code, specifically how the mythical constant(0x5f3759df) was derived is still…
Quake III's or Fast InvSqrt() or 0x5F3759DF Algorithm, by whoisslimshady
TIL Quake III Arena, needing to calculate x^(-1/2) quickly, used a piece of code so strange, the developers commented the code with evil floating point bit level hacking and what the fuck?
PDF) A Modification of the Fast Inverse Square Root Algorithm
Fast inverse square root - Wikipedia
PDF) Improving the Accuracy of the Fast Inverse Square Root by Modifying Newton–Raphson Corrections
Quake III's Fast Square Root - That One Game Dev
REVEALED: Quake III's SECRET Algorithm!
FAST INVERSE SQUARE ROOT - PDF Free Download
What do the following lines of C++ code mean? - Quora
math - Fastest implementation of sine, cosine and square root in C++ (doesn't need to be much accurate) - Stack Overflow
The Legendary Fast Inverse Square Root, by Shaw, Hard Mode
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