What it is and the problem it solves
Motion capture is a recording mechanism, not an animation tool. It solves the problem of translating physical motion into digital coordinates — nothing more, nothing less.
How it works
It samples actor movements many times per second. Early techniques used images from multiple cameras to calculate 3D positions. It records high-resolution movement of objects or people into a computer system.
What works
It works for transcribing limb trajectories in controlled environments. It worked in 1988 to animate 2D player characters. It worked in 1993 to produce the first virtual actor. Its origin in photogrammetric biomechanics proves its strength as measurement, not expression.
What does not
It does not capture visual appearance, emotional intent, or biomechanical causality. It records movement, not meaning. The gap between sampled motion and believable performance remains unbridged by the method itself.
What it changes
It changes how movement enters digital systems: from hand-drawn keyframes to machine-sampled trajectories. It shifts animation from interpretation to transcription — with all the fidelity and flatness that implies.
Is it worth your time
It is worth your time only if you need precise, repeatable movement data — not visual fidelity or real-time responsiveness. It delivers positional accuracy, not expressive nuance.
