[Boost-users] Quaternions and SLERP

Hello, I'm currently searching for a BLAS and geometrical library in C++ for ray-tracing simulation. I would like to know if Boost provides an implementation of the SLERP (Spherical Linear Interpolation) with Quaternions. As far as I could read in the Boost::Quaternions docs, it is not integrated, maybe it is elsewhere in boost ? I also found QVM which is not integrated with boost but extensively uses it. Is that in your mind a reliable solution ? (I have to compute a huge set of quaternion interpolations and compositions during my simulation steps). Thanks in advance for your replies, Regards, Yves