Time-critical distributed contact for 6-DoF haptic rendering of adaptively sampled reduced deformable models

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dc.contributor.authorBarbic, Jernejen_US
dc.contributor.authorJames, Dougen_US
dc.contributor.editorDimitris Metaxas and Jovan Popovicen_US
dc.date.accessioned2014-01-29T07:27:31Z
dc.date.available2014-01-29T07:27:31Z
dc.date.issued2007en_US
dc.description.abstractReal-time evaluation of distributed contact forces for rigid or deformable 3D objects is important for providing multi-sensory feedback in emerging real-time applications, such as 6-DoF haptic force-feedback rendering. Unfortunately, at very high temporal rates (1 kHz for haptics), there is often insufficient time to resolve distributed contact between geometrically complex objects. In this paper, we present a spatially and temporally adaptive sample-based approach to approximate contact forces under hard real-time constraints. The approach is CPU based, and supports contact between a rigid and a reduced deformable model with complex geometry. Penalty-based contact forces are efficiently resolved using a multi-resolution point-based representation for one object, and a signed-distance field for the other. Hard realtime approximation of distributed contact forces uses multi-level progressive point-contact sampling, and exploits temporal coherence, graceful degradation and other optimizations. We present several examples of 6-DoF haptic rendering of geometrically complex rigid and deformable objects in distributed contact at real-time kilohertz rates.en_US
dc.description.seriesinformationEurographics/SIGGRAPH Symposium on Computer Animationen_US
dc.identifier.isbn978-3-905673-44-9en_US
dc.identifier.issn1727-5288en_US
dc.identifier.urihttps://doi.org/10.2312/SCA/SCA07/171-180en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.6.8 [Simulation and Modeling]: Types of Simulation: Animation, I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling: Physically based modeling, I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism: Virtual Realityen_US
dc.titleTime-critical distributed contact for 6-DoF haptic rendering of adaptively sampled reduced deformable modelsen_US
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SCA 07: Eurographics/SIGGRAPH Symposium on Computer Animation