The article shows a methodology developed for surveying, 3D modeling, texture mapping, and real-time virtual navigating large commercial environment (200 to 2000 square meters). Its purpose is to define a process for generating a digital model of a commercial environment and all the products contained in it. Such model allows to interactively design the display areas, verifying the relationship between the building and the furniture, and the location of products on the shelves, through a realistic perception of the virtualized Point of Sale (POS). This approach allows to compress the timing of testing, evaluation and physical implementation of such kind of projects. The consequently reduced time-to-market involves a significant advantage on the competitors for the companies and retailers involved.