At least one computing system, in a network or stand-alone environment, accesses a consumer representation, wherein the consumer representation comprises a three dimensional model rendered to depict a consumer appearance and movement in each frame of a captured video stream and specified by a selection of sizing measurements detected from a scan of a consumer body shape. The computing system selects at least one merchandise item from among multiple merchandise items each with separate merchandise characteristics. In particular, the computing system selects the merchandise item of a size selected to fit the selection of sizing measurements for the consumer. The computing system renders the merchandise item on each rendered frame of the three dimensional model according to the merchandise characteristics as applied to the sizing measurements, wherein a display of the rendered three dimensional model shows a realistic image of the consumer appearance and movement as captured in the video stream rendering the consumer wearing the selected merchandise item.