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“michael j reeves”

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  • 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

    by Michael J. Reeves ...
    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 ... Read more

    $5.99 USD