If a fisheye camera is ceiling-mounted, the PTZ view type is selected (see Configuring fisheye cameras) and a 360^о field of view is specified for it on the map, then in the Immersion mode (see Immersion mode), the camera is displayed on the entire Surveillance window over the map image in the virtual PTZ mode (see Viewing modes for video from fisheye cameras).

In the Immersion mode, only the following video surveillance functions are available for fisheye cameras.

1. Digital zoom with mouse scrolling (see Zooming in on a video image using the mouse scroll wheel).
2. Point&Click function (see Control using Point&Click).
3. Changing the angle of view of the fisheye camera by moving the left mouse button over the video image.

To exit the Immersion mode, click the button.

In all other cases, the behaviour of the fisheye camera in the Immersion mode is the same as a regular camera.