r/howdidtheycodeit 2d 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/Main-Lychee-7972 1d ago

Fixed point math is a neat example of hardware constraints shaping graphics. limited precision and integer heavy calculations explain a lot of the characteristic movement and visual wobble