The Research of the Hybrid Volume Rendering Algorithm Based on GPU Technology

Volume rendering is a kind of important technology of 3D data volume rendering, which can display the internal structures and the shapes of the data cubes more vividly than the surface rendering and the technique for surface extraction from a volume. However, volume rendering algorithm is very complex, in order to solve the efficient problem of volume rendering of massive data,this paper introduces the real-time volume rendering technology which is based on GPU acceleration, and puts forward a method of fast hybrid volume rendering based on FBO to solve the problem that the data and the conventional primitives can be rendered on the same screen. At present, this method has been applied to the three-dimensional geological interpretation of comprehensive mapping system, which realizes that the three-dimensional attribute body and stratigraphy, fault surface can be shown at the same time, and improves the quality and efficiency of the interpretation work.