FASTCD: Fracturing-aware stable collision detection

Jae Pil Heo, Joon Kyung Seong, Duk Su Kim, Miguel A. Otaduy, Jeong Mo Hong, Min Tang, Sung Eui Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)


We present a collision detection (CD) method for complex and large-scale fracturing models that have geometric and topological changes. We first propose a novel dual-cone culling method to improve the performance of CD, especially self-collision detection among fracturing models. Our dual-cone culling method has a small computational overhead and a conservative algorithm. Combined with bounding volume hierarchies (BVHs), our dual-cone culling method becomes approximate. However, we found that our method does not miss any collisions in the tested benchmarks. We also propose a novel, selective restructuring method that improves the overall performance of CD and reduces performance degradations at fracturing events. Our restructuring method is based on a culling efficiency metric that measures the expected number of overlap tests of a BVH. To further reduce the performance degradations at fracturing events, we also propose a novel, fast BVH construction method that builds multiple levels of the hierarchy in one iteration using a grid and hashing. We test our method with four different large-scale deforming benchmarks. Compared to the state-of-the-art methods, our method shows a more stable performance for CD by improving the performance by a factor of up to two orders of magnitude at frames when deforming models change their mesh topologies.

Original languageEnglish
Title of host publicationComputer Animation 2010 - ACM SIGGRAPH / Eurographics Symposium Proceedings, SCA 2010
PublisherAssociation for Computing Machinery, Inc
Number of pages10
ISBN (Electronic)9783905674279
Publication statusPublished - 2010 Jul 2
Externally publishedYes
EventACMSIGGRAPH/Eurographics Symposium on Computer Animation, SCA 2010 - Madrid, Spain
Duration: 2010 Jul 22010 Jul 4

Publication series

NameComputer Animation 2010 - ACM SIGGRAPH / Eurographics Symposium Proceedings, SCA 2010


ConferenceACMSIGGRAPH/Eurographics Symposium on Computer Animation, SCA 2010

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Software
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction


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