NDLI: Deformable model collision detection using A-buffer

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Deformable model collision detection using A-buffer

Content Provider	ACM Digital Library
Author	Jang, Hanyoung Hany, JungHyun
Abstract	This paper presents a new image-space algorithm for real-time collision detection, where the GPU computes the potentially colliding sets (PCSs), and the CPU performs the standard triangle/triangle intersection test. When the bounding boxes of two objects intersect, the intersection is passed to the GPU. By rendering the objects in the intersection region, the GPU saves the object surfaces in A-buffer about 8 times faster than the ordinary approaches. As surfaces are rendered, their depth values are stored in textures. If the depth disparity between two surfaces is small enough, a PCS is obtained, which consists of two triangle, with a triangle from an object. The PCSs are read back to the CPU, and the CPU computes the intersection points between triangles. The proposed algorithm overcomes a variety of weaknesses which are revealed in the existing collision detection techniques: it does not require any preprocessing, it can handle dynamic models including deformable and fracturing meshes, it can compute self-collisions, etc. Its performance proves its usefulness in real-time applications such as 3D games.
Starting Page	1
Ending Page	1
Page Count	1
File Format	PDF
ISBN	9781595939838
DOI	10.1145/1342250.1357024
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2008-02-15
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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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