SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Networked virtual environments: design and implementation
Networked virtual environments: design and implementation
Global Memory Management in Client-Server Database Architectures
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
An Architecture for QoS Data Replication in Network Virtual Environments
VR '02 Proceedings of the IEEE Virtual Reality Conference 2002
VRAIS '95 Proceedings of the Virtual Reality Annual International Symposium (VRAIS'95)
Network-Based Visualization of 3D Landscapes and City Models
IEEE Computer Graphics and Applications
The HyperVerse: concepts for a federated and Torrent-based '3D Web'
International Journal of Advanced Media and Communication
An integer incremental AOI algorithm for progressive downloading of large scale VRML environments
Edutainment'07 Proceedings of the 2nd international conference on Technologies for e-learning and digital entertainment
Game-on-demand:: An online game engine based on geometry streaming
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
CyberWalk: a web-based distributed virtual walkthrough environment
IEEE Transactions on Multimedia
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As the popularity of WebVR applications rises in recent years, a great disparity exists between the huge 3D content on servers and the limited cache capacity on clients. In order to alleviate server loading, peer-to-peer (P2P)-based 3D content distribution has been proposed recently. However, given the limited cache sizes at clients, how to maintain and replace the cache content effectively becomes an important issue. We present a progressive scene replacement mechanism (PSRM) in this paper to support interactive walkthrough in P2P-based large-scale WebVR worlds. First, we define a new metric called preservation degree, based on both the visual attention paid by the user and the content's potential relevance for sharing. Second, cached objects are replaced progressively with ascending order in terms of their preservation degrees. Experimental results have shown that PSRM enables users with limited cache to walkthrough a large-scale WebVR world with high visual quality; while download requests handled by the servers are reduced significantly.