Faster dynamic spatial partitioning in OpenSimulator

Farooq, Umar; Glauert, John

doi:10.1007/s10055-017-0307-2

Cited by 5 publications

(14 citation statements)

References 26 publications

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“…A single Sim, however, can possibly host arbitrary number of regions (Farooq et al, 2018). Each region has an associated scene that represents not only the content and avatars but also all the relevant computation and communication concerns (Liu & Bowman, 2010;Farooq & Glauert, 2017a). Regions are organized by a 2D Grid.…”

Section: Background and Motivationmentioning

confidence: 99%

“…Second Life (SL) (Linden Research, Inc., 2021) and OpenSimulator (OSim) (OSim-Wiki, 2021) are the wellknown VWs available today. VWs are different than games and they allow players to develop their own content which persist even if the players go off-line (IDC, 2004;Farooq & Glauert, 2017a). The users, represented as digital characters called avatars, participate in social interaction and collaborative activities with each other's for both fun and implementing creative ideas (Alahuhta et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The dynamic spatial partitioning, however, is considered a very expensive operation as it transfers both content and players. Based on an extended OSim framework (Farooq & Glauert, 2017b), a dynamic grid infrastructure was proposed for which a working prototype was developed using the OSim framework (Farooq & Glauert, 2017a). The modular structure of OSim framework and the development of optimal strategies for region removal greatly assisted the developers in making dynamic spatial partitioning a considerable approach to scale VWs (Farooq & Glauert, 2017a).…”

Section: Introductionmentioning

confidence: 99%

“…Based on an extended OSim framework (Farooq & Glauert, 2017b), a dynamic grid infrastructure was proposed for which a working prototype was developed using the OSim framework (Farooq & Glauert, 2017a). The modular structure of OSim framework and the development of optimal strategies for region removal greatly assisted the developers in making dynamic spatial partitioning a considerable approach to scale VWs (Farooq & Glauert, 2017a). For content transfer, they adopted the OSim back-up mechanism, called, the OpenSimulator Archive (OAR) functionality.…”

Section: Introductionmentioning

confidence: 99%

“…The current implementation, however, use a sequential approach to set-up a scene from an OAR repository and load the components (including assets, terrain, regional settings, objects and parcels) in order. Therefore, it adds a considerable amount of time to the content unavailability time (Farooq & Glauert, 2017a).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Scaling knowledge based virtual worlds: An efficiency gain through multi-core architectures

Farooq

Israr

Rabbi

et al. 2021

JER is an international, peer-reviewed journal that publishes f

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This paper investigates the impact of sequential content load algorithm on regional transfer in OpenSimulator framework. It, then, presents an abstract parallel content load algorithm, which is implemented using the basic parallel for and chunk partitioning constructs to exploit the parallelism of multi-core architectures. This work used a set of five example virtual worlds content to investigate the effectiveness of the proposed work and its impact on the reallocation process of regions in OpenSimulator. Simulation results revealed that the implementation using parallel for reduced the timings by 47% to 57% while the implementation using chunk partitioning minimized it by 63% to 72%. Time impact on regional transfer was reduced by 39% to 51% using parallel for while 52% to 66% using chunk partitioning.

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Section: Background and Motivationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Scaling knowledge based virtual worlds: An efficiency gain through multi-core architectures

Farooq

Israr

Rabbi

et al. 2021

JER is an international, peer-reviewed journal that publishes f

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Reducing the impact of players’ transfer in managing scalable virtual worlds

Farooq

Shereen

Zia

et al. 2022

Multimed Tools Appl

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Key Technologies for Networked Virtual Environments

Salinas

Boronat

Sapena

et al. 2023

Multimed Tools Appl

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Thanks to the improvements experienced in technology during the last few years, most especially in virtual reality systems, the number and potential of networked virtual environments or NVEs and their users have been increasing. NVEs aim to give distributed users a feeling of immersion in a virtual world and the possibility of interacting with other users or with virtual objects inside it, just like when they interact in the real world. Being able to provide that feeling and natural interactions when the users are geographically separated is one of the goals of these systems. Nevertheless, this goal is especially sensitive to different issues, such as different connections with heterogeneous throughput or particular network latencies, which can lead to consistency and synchronization problems and, thus, to a worsening of the users’ quality of experience or QoE. With the purpose of solving these issues, researchers have proposed and evaluated numerous technical solutions, in fields like network architectures, data distribution and filtering, resource balancing, computing models, predictive modeling and synchronization in NVEs. This paper gathers and classifies them, summarizing their advantages and disadvantages, using a new way of classification. With the current increase in the number of NVEs and the multiple solutions proposed so far, this paper aims to become a useful tool and a starting point not only for future researchers in this field but also for those who are new to NVEs development, in which guaranteeing a good users’ QoE is essential.

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Faster dynamic spatial partitioning in OpenSimulator

Cited by 5 publications

References 26 publications

Scaling knowledge based virtual worlds: An efficiency gain through multi-core architectures

Scaling knowledge based virtual worlds: An efficiency gain through multi-core architectures

Reducing the impact of players’ transfer in managing scalable virtual worlds

Key Technologies for Networked Virtual Environments

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