Optimized volume rendering using octree on a GPU

Abstract

In this paper, we present a method for accelerating volumetric rendering based on the GPU. Using the octal tree structure, it becomes possible skipping data that is not visible after applying the transfer function. Therefore, if the rasterization is eliminated bottleneck. Optimal ratio the parameters of the octal tree are determined by the rasterization phase and the compromise between the number of rasterization operations and the data throughput. Because octree depends on the transfer function, it must be recalculate when the transfer function changes. The results show that parameters can be optimized for various graphics cards.