I get a little giddy every time a game's menu labels a scene as 'CG' because that tiny tag usually promises something cinematic. In the context of video game cutscenes, 'CG' basically means computer-generated visuals — the cinematic bits created using graphics software rather than filmed live-action. That can cover a lot: fully prerendered, movie-like sequences with ultra-detailed lighting and effects; in-engine cinematics that are rendered on the fly by the game engine; or even mixed approaches that combine pre-rendered elements with real-time gameplay footage.
What I love about CG cutscenes is the creative freedom they give developers. Prerendered CG lets artists push visual fidelity beyond what players' hardware might handle in real time, so you get polished, movie-quality frames like the old-school FMVs in classic 'Final Fantasy' entries. In-engine CG, seen in games such as 'The Last of Us' or 'Uncharted', ties cinematics more tightly to gameplay — characters and camera moves feel seamless because the same engine drives both play and story.
On a practical level, making CG cutscenes involves modeling, texturing, animation (often motion capture), lighting, rendering, and compositing. The choice between prerendered and real-time usually comes down to budget, target platforms, and the kind of player experience the team wants. To me, a well-done CG cutscene can elevate a story moment into something unforgettable — it's like watching a favorite film scene unfold inside a game, and that never fails to excite me.