Stereoscopic display responsive to focal-point shift

A method for displaying virtual imagery on a stereoscopic display system having one or more display matrices, the virtual imagery presenting a surface of individually renderable loci viewable to right and left eyes of a user, the method comprising:

• predicting a right pupil position of the right eye to be a point on the right eye lying closest to a predetermined target locus of the virtual imagery;
• predicting a left pupil position of the left eye to be a point on the left eye lying closest to a predetermined target locus of the virtual imagery;
• for each locus of the viewable surface, illuminating a right pixel of the one or more display matrices, the illuminated right pixel chosen based on the predicted right pupil position;
• for each locus of the viewable surface, illuminating a left pixel of the one or more display matrices, the illuminated left pixel chosen based on the predicted left pupil position;
• forming a virtual image of the right pixel in a plane in front of the right eye, the virtual image positioned on a straight line passing through the locus, the plane, and the predicted right pupil position;
• and
• forming a virtual image of the left pixel in a plane in front of the left eye, the virtual image positioned on a straight line passing through the locus, the plane, and the predicted left pupil position.

A method for displaying virtual imagery on a stereoscopic display system having one or more display matrices the virtual imagery presenting a surface of individually renderable loci viewable to right and left eyes of a user, the method comprising:

• sensing a right pupil position of the right eye and a left pupil position of the left eye;
• for each locus of the viewable surface, illuminating a right pixel of the one or more display matrices, the illuminated right pixel chosen based on the sensed right pupil position;
• for each locus of the viewable surface, illuminating a left pixel of the one or more display matrices, the illuminated left pixel chosen based on the sensed left pupil position;
• forming a virtual image of the right pixel in a plane in front of the right eye, the virtual image positioned on a straight line passing through the locus, the plane, and the sensed right pupil position, and tracking change in the sensed right pupil position;
• and
• forming a virtual image of the left pixel in a plane in front of the left eye, the virtual image positioned on a straight line passing through the locus, the plane, and the sensed left pupil position, and tracking change in the sensed left pupil position.