Level sequencer: Quaternion interpolation

Is unreal using spherical interpolation in quaternion mode or is it actually doing cubic interpolation (and considering the key tangents)?

UE doesn’t support Dual Quaternions natively, however you can build a version with DQ support.

Link to corresponding thread, where you can ask AlienRenders, which interpolation method he is using:…-images-inside

Link to source code with DQ support:

Choose 4.22 mod version in “branch” (but at first you have to register at github)