Cool Code - Quake 3 Fast InvSqrt() - Particl Digital

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…

Fast Inverse Square Root, 978-620-0-80095-4, 6200800952 ,9786200800954

Quake III's or Fast InvSqrt() or 0x5F3759DF Algorithm, by whoisslimshady

Exploring Quake 3's Fast Inverse Square Root

FixedPoint

Computation, Free Full-Text

Data-Quest-Projects/Guided Project- Transforming data with Python/hn_stories.csv at master · tnmichael309/Data-Quest-Projects · GitHub

PDF) Improving the Accuracy of the Fast Inverse Square Root by Modifying Newton–Raphson Corrections

Cool Code - Quake 3 Fast InvSqrt() - Particl Digital

PDF) SIMPLE EFFECTIVE FAST INVERSE SQUARE ROOT ALGORITHM WITH TWO MAGIC CONSTANTS

Game Dev Digest Issue #108 - Work Smarter, Not Harder