isual effects (sometimes abbreviated VFX) is the process by which imagery is created or manipulated outside the context of a live action shot in filmmaking and video production.The integration of live action footage and CG elements to create realistic imagery is called VFX. VFX involves the integration of live action footage (special effects) and generated imagery (digital or optics, animals or creatures) which look realistic, but would be dangerous, expensive, impractical, time-consuming