Optimization and Implementation of Unstructured Grid Volume Rendering Algorithm
Jian Hu, Wenke Wang, Qianli Ma, Sikun Li · 2012
Abstruct-Visibility sorting is one of the key techniques in volume rendering of unstructured grids.The efficiency of sorting algorithm greatly affects the efficiency of volume rendering.Hardware-Assisted Visibility Sorting [1] (HAVS) is one of the most important volume rendering algorithms.This paper proposes an optimization algorithm of HAVS by keeping a sorted list which could decrease the comparing time in the fragment-level sorting process of k-buffer.The range of k is also analyzed by experiments.The results of experiment show that the proposed optimization algorithm obviously improves the efficiency of HAVS.