Dynamic Primitive Caching for Haptic Rendering of Large-Scale Models

Authors:
Mashhuda Glencross;Roger Hubbold;Ben Lyons
Affiliations:
University of Manchester;University of Manchester;University of Manchester
Venue:
WHC '05 Proceedings of the First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems
Year:
2005

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Exploiting perception in high-fidelity virtual environmentsAdditional presentations from the 24th course are available on the citation page

ACM SIGGRAPH 2006 Courses
Modeling the effects of delayed haptic and visual feedback in a collaborative virtual environment

ACM Transactions on Computer-Human Interaction (TOCHI)

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Abstract

In this paper we present a software approach to managing complexity for haptic rendering of large-scale geometric models, consisting of tens to hundreds of thousands of distinct geometric primitives. A secondary client-side caching mechanism, exploiting partitioning, is used to dynamically update geometry within the locality of a user. Results show that the caching mechanism performs well, and that graphical rendering performance becomes an issue before the caching mechanism fails. The performance penalty of the caching technique was found to be dependent on the type of partitioning method employed.