Action supports the FBX camera with stereo rigs and mono cameras for compatibility across Autodesk 3D applications. This lets you build 3D compositing scenes using a mix of 3D objects and stereo objects.
The stereo object allows you to composite stereo sources in a 3D compositing environment, allowing you to combine stereo footage with 3D geometries (such as 3D Text, or FBX models) within the same scene. The stereo object is available in the object bin. You can add it to your scene in the usual way, by dragging it to the schematic or scene or by double-clicking the icon.
The ability to have multiple outputs in Action lets you output different passes from the same scene, including mattes. You can also output different camera views (top, front, side, result cam) and modes (stereo, right, left). The Output menu is where you can create, copy, delete, and rename outputs. You can also set the output and render options for each output. The Object list displays objects in the selected output.