Patent ID: 6744442
Filing Date: 2004-06-01
Classification: G06T

Abstract:
A method for creating textured three-dimensional models in a computer system comprising the steps of:creating a packed rectangle of textures for each of a plurality of three-dimensional objects corresponding to buildings modeled at a geographic site; spatially arranging the packed rectangle of textures in a correct position with a site model clip map image; interrogating the vertices of all building polygon faces for their corresponding texture coordinates and inserting the coordinates into a clip map clip grid look-up table based on the polygon vertex coordinates; determining a location of a clip center with respect to a particular x,y location for the site model clip map image by looking up values within the clip map clip grid look-up table; and looking up a values within a second look-up table to compensate for locally limitations introduced into the site model clip map image and for spatial incoherence within the site model clip map image.