Particle orientation using Glyph with custom source.
 

I need to visualize lagrangian non-spherical particles in paraview. I have openFOAM fields with the positions of the centers of the particles and their orientation in terms of quaternions and Euler angles. I tried to use the "glyph with custom source" filter but I can't figure out how it orients the particles or what vector data I have to provide for the orientation (Euler angles? with what rotation sequence?).

Do you know how how to solve the problem?