NDLI: Textured virtual walls achieving interactive frame rates during walkthroughs of complex indoor environments

Content Provider	IEEE Xplore Digital Library
Author	Ebbesmeyer, P.
Copyright Year	1998
Description	Author affiliation: Heinz Nixdorf Inst., Paderborn Univ., Germany (Ebbesmeyer, P.)
Abstract	Presents a new approach for using texture-mapped quadrilaterals as approximate representations for objects that are far away from the viewpoint. The method is suited for interactive visualization of complex indoor environments such as CAD models of large plants. In a pre-processing stage, the 3D model is partitioned by virtual walls. These virtual walls are simple quadrilaterals which divide a large room into a set of separated cells. During the walkthrough phase, the system only renders the geometry of cells surrounding the current viewpoint. All distant geometry is culled and replaced by "textured virtual walls" representing the same part of the model as the culled geometry. A description of techniques is given for minimizing visual artifacts and for controlling the transitions between textures and geometry if the viewpoint moves towards a virtual wall. The approach makes extensive use of texture-mapping hardware. It considerably reduces the number of polygons rendered by the 3D graphics pipeline and therefore contributes to achieving interactive frame rates.
Starting Page	220
Ending Page	227
File Size	814992
Page Count	8
File Format	PDF
ISBN	0818683627
DOI	10.1109/VRAIS.1998.658499
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-03-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Layout Testing Tellurium Geometry Runtime Hard disks Displays Navigation Virtual reality Head
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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