# General concepts

In order to start motion capture with Kinoca is building a [_Scene_](../scene-setup/index.md), the central configuration object in Kinoca. A Scene contains everything kinoca needs to do mocap including the configuration of all your cameras and their positions in space.

Each Scene can have one or more [_Camera_](../camera-setup/index.md)s that will be part of the motion capture system. Each camera contains information on capture and projection parameters.

Scenes are persisted between sessions through `.kinoca` files that can be reused between sessions. Once you do the hard work of configuring your scene once, running mocap is a matter of loading that scene and simply pressing the mocap button.