Quake III's legendary fast inverse square root for dummieshttps://www.youtube.com/watch?v=p8u_k2LIZyo

Quake III's legendary fast inverse square root for dummies

https://www.youtube.com/watch?v=p8u_k2LIZyo

Fast Inverse Square Root — A Quake III Algorithm

In this video we will take an in depth look at the fast inverse square root and see where the mysterious number 0x5f3759df comes from. This algorithm became famous after id Software open sourced the engine for Quake III. On the way we will also learn about…

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182.8K viewsJan 23, 2021 at 17:16

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Create: 2021-01-23
Last Update: 2025-06-29 23:37:05

Quake III's legendary fast inverse square root for dummies

https://www.youtube.com/watch?v=p8u_k2LIZyo

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