Study Of Volume Render Technology For Flow Field Data Base-on GPU

Visualization in Science Computing is an important research field brought forward and developed from the later 80s of the last century, which has a broad application in most science and technology field such as Computational fluid dynamics (CFD) and so on. In the past two decades, significant progress has been made in the computer technical and CFD. A lot of important arithmetic for producing graphics and pictures from data, including the data from CFD, could be realized by hardware.The Volume Rending for flow field data by GPU is the main task of the study. The 3D spatial data sets visualization arithmetic and GPU was introduced firstly. The typical Volume Rending arithmetic were described and compared. The feasibility and necessity to realize the visualization of flow field by Volume Rending and GPU were discussed. Secondly, the Visualization of scalar data sets was introduced as an emphasis and the volume rending arithmetic on the basis of GPU of 3D Texture Mapping and Ray-casting were carried out. The results by two arithmetic were given and analyzed.The visualization of flow field by Volume Rending technique and GPU was feasible both in theory and practice. A better drawing within less time could be obtained in this study.