TEXTURE MAPPING COMPUTER GRAPHICS SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve the application efficiency of a memory in a texture mapping graphics system. SOLUTION: A graphics hardware device connected to a host computer can plot a texture-mapped picture and is provided with a local memory 155 for storing at least a part of texture data stored in a system memory. When a software demon 160 runs on a processor in the host computer and plots a picture, data transfer from the system memory to the memory 155 is managed and the use of a texture data block stored in the memory 155 by the hardware device is monitored. The priority of textures stored in the main memory is traced and a texture data block necessary for the plotting of the picture is substituted for a texture data block with the lowest priority and the lowest using frequency stored in the memory 155.