An Electrically Switchable Bragg Grating despeckler device comprising at least one ESBG element recorded in a hPDLC sandwiched between transparent substrates to which transparent conductive coatings have been applied. The DMA engine reads and executes the descriptors in the first list. In one aspect, products are depicted in a three dimensional computing environment that simulates a brick-and-mortar store, whereby the user may navigate through the environment and click on individual products to focus on the product and obtain additional information. Techniques for visual integration include placement of flight data indicators in certain positions on a display relative to one another based upon functional relationships between the operational parameters being monitored.