Adaptive Model Simplification in Real-Time Rendering for Visualization

Article type: Research Article

Authors: Ng, K.-W. | Wong, Y.-P.

Affiliations: Faculty of Information Technology, Multimedia University, Jalan Multimedia, 63100 Cyberjaya, Selangor, Malaysia. E-mail: kwng@mmu.edu.my, and ypwong@mmu.edu.my

Abstract: In this paper, we propose four different geometric measures to identify appropriate triangles to be simplified in 3D complex model. Each measure yields different weight on the same surface and produces a unique simplified model that worth to be analyzed. The proposed measures involve consideration on the resulting of the surfaces collapse, the high peak and low peak of the triangles mesh, the irregular triangle shape, the capacity and boundary view on the triangles mesh. The chosen triangle is to be collapsed based criterion on Half-edge Collapse Transformation method. From the empirical results, one of the proposed measures presents almost excellence in all the criteria mentioned above. The empirical results include the quality of the surface models (visualization purpose), the efficiency of the measures and the overall appearance preservation of the simplified models. The proposed measures are then to be compared to three existing measures. From the analyzed results, we combine the measures to adapt to the user's response for generating the user-desired simplified models.

Keywords: Visualization, Computer Graphics, Level of Details, Virtual Reality

Journal: Journal of Visualization, vol. 10, no. 1, pp. 111-121, 2007