Freya Holmér on Twitter: "added 90°/-90° quaternion rotations now as well, since they too can also be simplified quite a bit https://t.co/jo4CbJ38zD https://t.co/DCF6XIi6Xx" / Twitter

I've now added a function for rotating around the 6 primary axes (intrinsic & extrinsic XYZ) by an arbitrary angle, avoiding doing a full quaternion multiplication github.com/FreyaHolmer/Ma

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Freya Holmér

@FreyaHolmer

Nov 25, 2022

here's an implementation of quaternion swizzling for super cheap 180° rotations in Unity, enjoy

github.com/FreyaHolmer/Ma

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Freya Holmér

@FreyaHolmer

Nov 25, 2022

I think I might be doing math as a coping mechanism when dealing with stress in life. it's comforting

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Freya Holmér

@FreyaHolmer

added 90°/-90° quaternion rotations now as well, since they too can also be simplified quite a bit github.com/FreyaHolmer/Ma

3:31 PM · Nov 26, 2022

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Is it sqrt(2) or 1/sqrt(2)? Otherwise the resulting quaternion isn't normalized, if I'm not missing something

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oh, hm, uh, one thing led to another and I did 2*(1/√2) which is equal to √2 but I think that factor of 2 is wrong, so I think it should be 1/√2 now that you mention it yeah it did work in my test case but I think a normalization might've happened under the hood, fixing now

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me who doesn't have a clue what Quaternion even is: "Interesting..."

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