Unreal what's the difference between FRotator and FQuat?

Development Programming & Scripting
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As above, what’s the difference?

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Hi Yunze Gu,

Both FRotator and FQuat store rotation information. FRotators store rotation information around the three axes (pitch, roll, yaw) in degrees. FQuat is the Unreal Engine-specific implementation of quaternions, which are a more complex representation of rotation and do not store values in degrees.