Texture Compression Technology And To Achieve

Efficient method of real-time realistic rendering is urgently required by increasing applications, such as virtual reality, dynamic simulation, real-time visualization, etc. With the improvement of scene complexity and the generalization of application platform, the contradiction between the speed and quality of existing rendering algorithms has become more and more protruding. Texture mapping is one of the most important approaches in solving the contradiction between real-time rendering and realistic rendering. Much more realistic surface detail can be got without increasing the complexity of geometric model in the visual scene through it. However, if texture is used without limitation, it will soon use up all the display memory, and may cause transmission bottleneck in the system data bus. Texture compression is undoubtedly a good way to solve this problem. First, texture compression can promote the efficiency of display memory and can manage the texture in a fairly efficient way. Thus more bigger and higher resolution textures can be used in one scene to make it more realistic. On the other hand, because texture compression can reduce the texture data, so there is much less need for the data bus to transfer the texture data to display memory, thus can alleviate the burden of system data bus. This paper is organized on the order of texture mapping, image coding and texture compression. The essence of texture is firstly discussed, then the base principle of texture mapping and the technology of image coding based on vector quantization is analyzed in detail. In the end, a hybrid texture compression algorithm is put forward and realized. The efficiency of this method is verified by experimental results. Some deficiencies of it are also presented and analyzed.