visual effects

US /ˌvɪʒ.u.əl ɪˈfekts/
UK /ˌvɪʒ.u.əl ɪˈfekts/
"visual effects" picture
1.

imagery created or manipulated outside the context of a live action shot to enhance or alter the visual narrative of a film, television show, or other media

:
The movie was praised for its stunning visual effects.
Creating realistic visual effects requires advanced software and skilled artists.