Patent ID: 6313846
Filing Date: 2001-11-06
Classification: G06T

Abstract:
A method for texturing a three dimensional image using two-dimensional texture image data for display on a screen comprising the steps of:determining which objects in the three-dimensional image are visible at a plurality of adjacent elementary areas (pixels) of the screen;after determining the objects visible at a plurality of adjacent screen pixels, receiving data comprising the location of a selected screen pixel, and associated image data for the selected screen pixel wherein, the received image data includes data based on the object visible at the selected screen pixel;retrieving texture image data from a memory means in dependence on the image data;mapping an appropriate portion of said texture image data onto the selected screen pixel in dependence on the associated image data;based on the objects visible at the plurality of adjacent screen pixels, determining the number of screen pixels which share the same associated image data;determining an incremental change in the mapping of the texture image data onto the screen pixels on a pixel-by-pixel increment; andfor each new screen pixel sharing the same image data as an adjacent screen pixel, combining previously derived texture image data for the adjacent screen pixel with said incremental change in texture image data to derive texture image data for the new screen pixel and mapping the derived texture image data onto the new screen pixel.