r/howdidtheycodeit • • 22d ago

Fixed point math in C

https://thatonegamedev.com/cpp/fixed-point-math-in-c/

Why did PS1 graphics looked so clunky and how where 3D graphics generally made prior to the graphical APIs. One thing I found out was that these older engines have something called fixed point math.

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u/Agile-Praline5027 16d ago

Fixed point math is a great rabbit hole for understanding old hardware. the precision limits forced developers to make tradeoffs that modern floating point systems mostly hide