Abstract:

In order to break through the limitation of GPU memory for the traditional

texture_based volume rendering, an effective technique utilizing 3D texture partitioning based

on full binary tree is presented for rendering largescale volume datasets interactively on

general purpose GPU . Using the Fragment Programming capability of commodity graphics cards,

the texture data is transferred to a 1D color lookup table and a working set of dynamic

texture datasets equivalent to the volume dataset size. The working set manages the boundaries

between blocks with the help of abstract partitioning and inherited attributes.The

experimental results show that this method is efficient for rendering largescale volume

datasets at an interactive rate on general purpose PCs．

Key words: full binary tree;texture partitioning;volume rendering;3D texture mapping;GPGPU