三维地震数据场的并行体绘制算法

Three-dimensional Seismic-data Parallel Volume Rendering Algorithm

光线投射算法是一种应用广泛的体绘制基本算法,其存在的主要问题是绘制速度较慢。为了提高光线投射算法的绘制速度,利用光线间和光线内的并行性,结合三维地震数据场的特点和文件存储特性,提出了一种基于工作站机群的三维地震数据场的并行体绘制算法。地震油气解释实际应用表明本算法能满足地震解释的要求。

Ray-casting algorithm is an elementary algorithm which is used widely and based on volume rendering, but the key problem is the lower speed of rendering. In order to accelerate the rendering speed of Ray-casting algorithm, based on the parallelism of both between the ray and inner the ray, then using the characteristic of the three dimension of seismlc-data field and the special method of file memory on the condition of cluster, we propose a highly efficiency parallel volume rendering algorithm for three dimension of seismic-data field. The proposed algorithm applies whole parallel from file I/O to rendering.