Parametric construction of hybrid environments for video presentation and conferencing

A non-transitory computer readable medium containing software that provides a video presentation using a plurality of different background environments having a structured list of visual components and parameters for different portions of the video presentation that are prepared prior to the video presentation where, prior to the video presentation, a subset of the background environments, value ranges, and initial values for a subset of the parameters of the background environments are selected and where, prior to the video presentation, multiple alternative background environments are selected for at least one of the portions of the video presentation, the software comprising:

• executable code that presents to an audience at least one presenter superimposed on the different ones of the background environments during different portions of the video presentation;
• executable code that replaces a particular one of the background environments for the at least one of the portions during the presentation with one of the multiple alternative background environments;
• and
• executable code that modifies values selected for at least some of the subset of the parameters during the video presentation within the value ranges.