Visibility culling using hierarchical occlusion maps
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Occlusion culling with optimized hierarchical buffering
ACM SIGGRAPH 99 Conference abstracts and applications
GigaWalk: interactive walkthrough of complex environments
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
Efficient Conservative Visibility Culling Using the Prioritized-Layered Projection Algorithm
IEEE Transactions on Visualization and Computer Graphics
IEEE Computer Graphics and Applications
Interactive visibility culling in complex environments using occlusion-switches
I3D '03 Proceedings of the 2003 symposium on Interactive 3D graphics
A Virtual Assembly Design Environment
VR '99 Proceedings of the IEEE Virtual Reality
Virtual disassembly of products based on geometric models
Computers in Industry
A survey of visibility for walkthrough applications
IEEE Transactions on Visualization and Computer Graphics
A virtual environment for complex products collaborative assembly operation simulation
Journal of Intelligent Manufacturing
Research on motion control technology for virtual assembly platform
ICPCA/SWS'12 Proceedings of the 2012 international conference on Pervasive Computing and the Networked World
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Interactive visualization of assemblies in a virtual environment is important to the industrial applications like design verification and maintenance processes training. In general, the difficulty and the complication of the interactive visualization of industrial assemblies arise from the facts that an assembly model generally has a large number of primitives and high depth complexity; furthermore, dynamic environments are required for simulating assembly manipulations. In this paper, a dynamic data model for visualization of industrial assemblies is proposed. The data model integrates a spatial data set of hierarchical model representation and a dynamic transformation mechanism for runtime adaptation to the changes and movements of the assembly structures. Based on the dynamic spatial database, a visibility optimization approach that can efficiently reduce the overall geometry is presented. The complexity reduction is accomplished through view frustum culling, non-conservative occlusion culling, and geometry simplification. By which, significant speedup in user interaction rates has been achieved. Since all the techniques developed here are supported by mainstream graphics hardware, thus the solution is able to provide users with practical real-time visualization of complex dynamic virtual assembly environments with affordable graphics hardware.