4 ms·
I'm guessing the infamous inverse square root algorithm was used originally for ray-casting described in the article? Fast Inverse Square Root: https://news.yc
by filereaper 5y ago
I'm guessing the infamous inverse square root algorithm was used originally for ray-casting described in the article?
Fast Inverse Square Root: https://news.ycombinator.com/item?id=24959157 https://news.ycombinator.com/item?id=24959157
Excellent article btw.
- adamrezich 5y agothis project is a pseudo-remake of Wolfenstein 3-D; Fast Inverse Square Root as we know it wasn't in an id game until much later with Quake III Arena
- AnIdiotOnTheNet 5y agoFast inverse square root was part of the lighting calculations in Quake III IIRC. Nothing so obtuse is required for the simple ray-casting demonstrated here.