Convert Unreal Quaternion to Unity

Community Community & Industry Discussion
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1

This may be simple to some, but I kinda suck at math.

I need code to convert the rotation I have in Unreal to Unity. My understanding is both use a left hand coordinate system, but in Unity forward is Z, right is X, and up is Y. In Unreal forward is X, right is Y, and up is Z.

2

There’s not much math here just a remapping between coordinates.

Rotation around
… X is now rotation around Z
… Y is now around X
… Z is now around Y

You’re probably thinking about euler angles (which are stored internally as quaternions) but the simple remapping stands.