Hi, three.js developers! I made two cubes and rotated them using TransformControls to make them look the same. But their rotation is different. Why does it happen? How do I compare two rotation values? Thank you in advance.

[image] PavelBoytchev: If I had to compare two rotations, I would start with three perpendicular vectors (e.g. the unit vectors of a coordinate system). Then I will transform them by both rotations. And only after then I will compare the resulting pairs of vectors whether they are close. It o…

How to compare 2 rotation values

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hofk February 15, 2023, 8:11am 4

It occurs to me now that this can be roughly illustrated by this article and the examples.
Quaternion - method .setFromBasis( e1, e2, e3 )

https://hofk.de/main/discourse.threejs/2021/CarRacing/FlightRouteQuaternion.html

CarRacingQuaternion

BasisToQuaternion

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How to compare 2 rotation values

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