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ethelward
on May 9, 2020
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Revisiting the Business Card Raytracer
> 80-bit precision is actively harmful
How comes? Unexpected clipping when converting back and forth to 64bits?
amluto
on May 10, 2020
[–]
Exactly. The conversations happen at unexpected and unpredictable times depending on when the compiler needs to spill registers, which has surprising effects.
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How comes? Unexpected clipping when converting back and forth to 64bits?