Simple and fast interpolation, generalization of QLB (quaternion linear blending).
While ScLERP has the nice properties of constant speed, coordinate system invariance, and is shortest path, DLB is only coordinate system invariant and shortest path (not constant speed). (*)
TODO
[ ] Might want to add this in docstring or readme or defer with #28. Could visualize as well and plot speed differences
[ ] update to master, fix travis build
(*) see Dual Quaternions for Rigid Transformation Blending by Kavan et al.
Simple and fast interpolation, generalization of QLB (quaternion linear blending).
While ScLERP has the nice properties of constant speed, coordinate system invariance, and is shortest path, DLB is only coordinate system invariant and shortest path (not constant speed). (*)
TODO
(*) see Dual Quaternions for Rigid Transformation Blending by Kavan et al.