A process is provided for analyzing and visualizing conditions of a combustion process in an enclosure, and includes steps of providing continuously updated images of the enclosure for visualization of the enclosure to a user, using a viewing device having a display representing a virtual window of the enclosure; detecting a viewing angle and a viewing position of the user relative to the enclosure; illustrating an interior prospect of the enclosure relative to the viewing angle and position of the user based on the images of the enclosure; and adjusting, in realtime, the illustration of the interior prospect of the enclosure as at least one of the viewing angle and position of the user is changed for reflecting a changed view of the user.