Hierarchical Data Structures and Algorithms for Computer Graphics. Part I.
IEEE Computer Graphics and Applications
Large scale terrain visualization using the restricted quadtree triangulation
Proceedings of the conference on Visualization '98
Optimized view frustum culling algorithms for bounding boxes
Journal of Graphics Tools
Real-Time Rendering
Stereoscopic View-Dependent Visualization of Terrain Height Fields
IEEE Transactions on Visualization and Computer Graphics
Interactive Rendering with LOD Control and Occlusion Culling Based on Polygon Hierarchies
CGI '04 Proceedings of the Computer Graphics International
Cluster Based Real-time Rendering System for Large Terrain Dataset
CAD-CG '05 Proceedings of the Ninth International Conference on Computer Aided Design and Computer Graphics
Semantic visualization of 3D urban environments
Multimedia Tools and Applications
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This article describes a new contribution culling method for the view-dependent real-time rendering of complex huge urban scenes. As a preprocessing step, the view frustum culling technique is used to cull away invisible objects that are outside the view frustum. For the management of the levels-of-detail, we subdivide the image regions and construct a weighted quadtree. The weight of each quadtree node is defined as the sum of weights of all objects contained in the node or its child nodes. The weight of an object is proportional to the view space area of the projected object as well as the distance from the viewpoint. Hence, large buildings in the far distance are not always culled out since their contributions to the rendering quality can be larger than those of near small buildings. We tested the proposed method by applying it to render a huge number of structures in our metropolitan section which is currently under development. Experimental results showed that the proposed rendering method guarantees real-time rendering of complex huge scenes.