Filmmaking using real-time game engines — characters, environments, and camera work rendered live in virtual space. Faster, cheaper than mocap or hand animation.
You sit in front of a game engine like Unreal or Unity and shoot a film — without a camera, without a lighting technician, without a location scout. This process is called Machinima, and it functions like a kind of digital film studio running on your computer. You build or use existing 3D assets, position virtual cameras, input lighting and motion capture data for characters, and play back the scene. The result is finished footage — or at least significantly less post-production work than with traditional animation.
The crucial advantage lies in iteration speed. An actor avatar can perform a complex movement in real-time while you experiment with different camera perspectives. Do you want to adjust a camera move, lighting, or depth of field? Re-render, done — no re-briefing with animators, no re-layout. This saves weeks. Machinima is therefore the method of choice when budget and timeframes are tight or when you want to work in an iterative, experimental manner. TV series, music videos, commercial campaigns — this pipeline is increasingly found, especially in the realm of VFX-heavy content.
Practically, it works like this: You take motion capture data from real actors or use library movements, apply them to digital characters, set up virtual sets (which you've built yourself or licensed), and shoot the scenes with virtual cameras. The engine renders in real-time or in any desired quality — depending on how much time and CPU power you have available. For TV real-time productions, the footage can even be streamed directly from the engine; for high-end cinema, you render overnight and export in DCI-4K.
Where it gets critical: Photorealism is expensive. A generic game look is cheap and fast. You either need excellent 3D assets (characters, props, environments), or the finished Machinima will look like a cutscene. Motion capture quality also determines the final result — poor actor performance remains poor digitally. The best application: scenes with a lot of freedom of movement, virtual environments, sci-fi, or fantasy — anything where physical reality is not expected. For photorealistic human drama, you still need real actors and locations.