Visual effects (VFX) is the process by which imagery is created or manipulated outside the context of a live-action shot in filmmaking and video production. But some modern computer graphics frames are still lame. Scenes aren’t planned or designed around the effects. In the past, so every shot had to be planned out (if they were doing it right) months in advance and everything coordinated to make sure the shot went right because sometimes you only had one take to get it because the prop or set or whatever could be destroyed during the shoot. Now VFX houses are handed some footage with little to no reference and then asked to add things in, change them a trillion times, up to days before release.
VFX artist plays with negative space to create this trippy wine-pouring video
It’s hard and takes a lot of time and dedication.