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# Starting a Stereoscopic Session

You can start a stereoscopic session in Action by loading stereo clips and using the Stereo Startup mode. This creates a stereo camera. The output is set to the stereo camera, a stereo object is created for visualizing the scene, and the clips are placed on separate lines in the Media list.

NoteA stereo clip cannot be loaded in Action if it is selected as the Back or MultiVersion input, or if it is selected to replace a clip in the Media list.

When using a stereo clip, its left and right eye tracks are automatically split and placed on individual lines in the Media list. Also, new clips appear in the workspace. They retain the name of the original clips, and are appended with a “_Left” or “_Right” suffix. It is important to save these clips, as they are used for loading an Action setup or loading the previous Action session.

NoteIt is not possible to select a mono clip as the Matte input if the Front input is stereo, and vice versa.