2 ms·
Inverse square root is for normalizing vectors particularly in computer graphics calculations, it needs to be run a whole lot very fast. https://en.m.wikipedia
by colechristensen 3y ago
Inverse square root is for normalizing vectors particularly in computer graphics calculations, it needs to be run a whole lot very fast.
https://en.m.wikipedia.org/wiki/Fast_inverse_square_root#Motivation https://en.m.wikipedia.org/wiki/Fast_inverse_square_root#Mot...
- hinkley 3y agoFamously the magic constant in the Quake engine that nobody remembers inventing. That article does say there’s an SSE instruction rsqrtss that is better.