METHOD FOR SELECTING MIP-MAP LEVEL AND SYSTEM FOR TEXTURE MAPPING USING SAME

摘要

A method for selecting a MIP-map level is used for Texture Mapping based on Global Illumination. The method for selecting the MIP-map level confirms Object information on at least one object on a screen. The object information can include the number, shape, and the composition of objects on the screen, and/or the spatial position of a relevant object on the screen. Based on the object information, a MIP-map level selection algorithm is determined. The MIP-map level selection algorithm includes ray tracing and/or distance measuring, wherein the ray tracing selects the MIP-map based on the Differential value of adjacent rays, and the distance measuring can select a MIP-map by calculating the distance at which the ratio of pixels and texels reach 1:1. Based on the determined method, the MIP-map level is selected.