In this work three dimensional full-vector beam propagation method derived directly from Maxwell equations and combined with the exact equations describing director reorientation are presented. Molecules reorientation model bases on the Frank-Oseen equation with two angles ( twist and azimuthal) describing molecule orientation. Solutions of light propagation in chiral nematic liquid crystals for different input beam polarization are shown. Formation of a soliton-like beam which has been already observed in many experiments is analyzed. Comparison between two-angle model and one-angle model assuming reorientation in a single plane is also provided.