The present subject matter relates to a system and a method for generating a full head 3D morphable model. In an aspect, the system includes an identification module to identify one or more feature points as a collection of principal regions of an input 2D image. A 3D reconstruction engine generates the full head 3D morphable model by mapping feature points of the principal regions with corresponding feature points of predefined trained 3D mesh models. A rigging and animation module joins the full head 3D morphable model to a body of an animatable object to obtain a final 3D morphable model. Further, in an aspect, audio content may be added to the final 3D morphable mode to cause the final 3D morphable model to lip-sync with the audio content, and rendered in one of an AR, a MR or a VR medium.