Research on Visualization of 3D Geological Body Using Direct Volume Rendering
直接体绘制技术在地质体三维可视化中的应用研究*

A new approach for visualization of 3D geological body based on direct volume rendering technology is presented. First the regular volume data which is needed in the process of direct volume rendering is formed through the preprocess of drill hole data, so the 3D data sets which represent the relationship among the stratum of the geological body are obtained. Then the geological body is rendered by direct volume rendering. This approach avoids the process of computing intersecting between insection and voxel which is essential in traditional 3D geological body modeling method. An example of its application in the visualization of 3D geological body in an area is illustrated.