View-dependent refinement of multiresolution meshes using programmable graphics hardware

Authors:
Junfeng Ji;Enhua Wu;Sheng Li;Xuehui Liu
Affiliations:
State Key Lab. of Computer Science, Institute of Software, Chinese Academy of Sciences, Beijing, China and Graduate University of Chinese Academy of Sciences, Beijing, China and State Information ...;State Key Lab. of Computer Science, Institute of Software, Chinese Academy of Sciences, Beijing, China and Department of Computer and Information Science, Faculty of Science and Technology, Univer ...;State Key Lab. of Computer Science, Institute of Software, Chinese Academy of Sciences, Beijing, China and School of Electronics Engineering and Computer Science, Peking University, Beijing, China;State Key Lab. of Computer Science, Institute of Software, Chinese Academy of Sciences, Beijing, China
Venue:
The Visual Computer: International Journal of Computer Graphics
Year:
2006

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Abstract

View-dependent multiresolution rendering places a heavy load on CPU. This paper presents a new method on view-dependent refinement of multiresolution meshes by using the computation power of modern programmable graphics hardware (GPU). Two rendering passes using this method are included. During the first pass, the level of detail selection is performed in the fragment shaders. The resultant buffer from the first pass is taken as the input texture to the second rendering pass by vertex texturing, and then the node culling and triangulation can be performed in the vertex shaders. Our approach can generate adaptive meshes in real-time, and can be fully implemented on GPU. The method improves the efficiency of mesh simplification, and significantly alleviates the computing load on CPU.