TEXTURE MEMORY ACCESS DEVICE OF THREE-DIMENSIONAL COMPUTER GRAPHIC SYSTEM

摘要

PURPOSE: A texture memory access device of a three-dimensional computer graphic system is provided to improve texture mapping performance to produce more vivid three-dimensional computer graphics. CONSTITUTION: A texture memory access device of a three-dimensional computer graphic system includes a texture address aligner(210), a texture address comparator(220), a texture memory controller(230), a texture data register(240), and a texture data aligner(250). The texture address aligner receives a plurality of texture memory addresses from texture units(110) and aligns identical texture addresses. The texture address comparator compares the aligned addresses with addresses stored at the previous clock cycle to align identical texture addresses. The texture memory controller controls a texture memory using texture addresses output from the comparator. The texture data register temporarily stores data read from the texture memory. The texture data aligner realigns texture data according to control signals output from the texture address aligner and the texture address comparator to send the texture data to the texture units.