| Description | |
|---|---|
| a | Start unit quaternion value, returned when t = 0. | 
| b | End unit quaternion value, returned when t = 1. | 
| t | Interpolation ratio. Value is unclamped. | 
                  Quaternion
        A unit quaternion spherically interpolated between unit quaternions a and b.
      
Spherically linear interpolates between unit quaternions a and b by t.
Additional resources: LerpUnclamped, Slerp.