Hexadecimal Sorcery: The Algorithmic Hack of the Fast Inverse Square Root : Quake, Lighting Vectors, and the Bizarre Mathematical Genius That Saved Early 3D Game Rendering.DE
Language: English
Published by Epubli, 2026
- Softcover
- New
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
AbeBooks seller since August 14, 2006
Condition: New
£ 16.77
Quantity: 2 available
Add to basketItem description from seller
Druck auf Anfrage Neuware - Printed after ordering - In the mid-1990s, rendering true 3D environments with dynamic lighting was an impossible dream for standard home computers. Calculating the angle of light hitting a 3D polygon requires calculating an 'inverse square root'-a mathematical operation so brutal that it would instantly choke the CPU and bring the game to a stuttering halt.But the source code for the legendary game Quake III Arena contained a bizarre, seemingly nonsensical line of code: i = 0x5f3759df - ( i >> 1 ); This was the Fast Inverse Square Root algorithm. By exploiting a massive loophole in how processors store floating-point numbers at the bit level, this single line of code bypassed the traditional calculation entirely, spitting out a nearly perfect approximation in a fraction of a microsecond.This technical manual breaks down the sheer, black-magic brilliance of bit-level hacking. We dissect the math behind the constant, exploring how a completely undocumented, mathematical cheat code allowed the gaming industry to render shadows and light in real-time.Master the most famous hack in software history. Understand the desperate, brilliant math required to trick a processor into doing the impossible. …
Seller Inventory # 9783565381555
- Title
- Hexadecimal Sorcery: The Algorithmic Hack of the Fast Inverse Square Root : Quake, Lighting Vectors, and the Bizarre Mathematical Genius That Saved Early 3D Game Rendering.DE
- Author
- Michael J. Reeves
- Publisher
- Epubli
- Publication year
- 2026
- Condition
- Neu
- Binding
- Taschenbuch
- Language
- English
- ISBN 10
- 3565381558
- ISBN 13
- 9783565381555
- Item weight
- 416 grams
- Dimensions
- 297x210x7 mm
"Synopsis" may belong to another edition of this title.
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|---|---|---|
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