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Interactive display of large solid models for walkthroughs

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3 Author(s)
S. Kumar ; North Carolina Univ., NC, USA ; S. Krishnan ; D. Manocha

A new paradigm for designing complex engineering systems has emerged from computer graphics and CAD/CAM technology. Virtual design environments allow users to design and visualize all stages of the product. They not only free designers from the two dimensions of pencil and paper but also eliminate costly construction of physical mock-ups. We are developing the necessary technology for interactive walkthroughs of large mechanical and architectural models. This development includes model construction, display and interfacing with high-performance graphics systems and immersive technologies. Our ultimate goal is to create an environment where users will explore the complete model of a large design, such as a submarine, and verify that all constraints are satisfied in the same way they would a real one-by walking around in it. In applying our approach to a submarine storage and handling system model, we improved the overall frame rate by three to four times compared with rendering the polygonal B-rep. The online triangulation allows us to spend our rendering resources in the parts of the model significant for the current image. The overall system is currently being applied to large CAD models like submarines and fighting vehicles

Published in:

IEEE Computer Graphics and Applications  (Volume:16 ,  Issue: 2 )