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

摘要

PURPOSE: A method for selecting a mipmap level and a system for texture mapping using the same are provided to improve the speed of a texture mapping work by corresponding to the required level of processing speed and the image quality of a video and selecting mipmap using a ray tracing method or a distance comparison method. CONSTITUTION: A texture mapping system confirms object information about one or more objects on a screen (S210). The system determines a mipmap level selection algorithm on the basis of the object information (S220). The mipmap level selection algorithm includes a differential method and/or a distance comparison method. The differential method selects a mipmap on the basis of the differential value of neighboring rays. The distance comparison method calculates a distance in which the rate of pixel by texel becomes one by one and selects the mipmap. The system selects the mipmap level on the basis of the selected method (S230). [Reference numerals] (S210) Step of confirming an object information about one or more objects existing on a screen; (S220) Step of determining one of a differential method and/or a distance comparison method as a mipmap level selection method on the basis of the object information; (S230) Step of selecting the mipmap level based on the above-mentioned determined method