For the other timezone, because I feel this is worth repeating.https://twitter.com/Biappi/status/1093282726512377857 …
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For graphics specifically, there's also the fact that floating point is just significantly faster on all current hardware, provided you can find enough parallel work to do.
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Yep. Though it’s interesting that the rasterizer converts to fixed point internally. (Also common to pack vertex data into fixed point for compression—I do this.)
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The big question that *should* be deciding for float vs fixed is whether you care more about translation-invariance or scale-invariance of your geometry.
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That, and whether or not you can tolerate wrapping / undefined overflow.
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