Aim Offset question

Hi all,

I was wondering why UE likes to use aim offsets for their TPS characters over rotating the spine bone to the camera forward rotation?
I think that would greatly decrease the animations needed to create aiming poses.

Thank you.

Actually you can use just 1 frame for the AimOffset, as showcased in this tutorial UE4 #5 Add rifle and create aim offset from AimSpace Animation - YouTube