DESCRIZIONE
The present disclosure provide an image generating device which displays a situation around a water-surface movable body with an easy-to-view and natural impression. A position acquiring module acquire positional information indicative of a position of the water-surface movable body where an imaging device is installed. A posture acquiring module acquire posture information indicative of a posture of the water-surface movable body. An additional display information acquiring module acquire additional display information including information indicative of positions of a plurality of locations. A display data generating module generate three-dimensional display data for displaying at least one of graphics indicative of the additional display information so that the graphics are superimposedly placed on a water surface in an image outputted from the imaging device based on the positional information, the posture information, and the positions of the plurality of locations included in the additional display information acquired by the additional display information acquiring module. A display outputting module output the graphic rendering the three-dimensional display data. [Image Omitted]