Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/33278
Title: Texture Caching in Networked Virtual Environments
Authors: CHANAKA ARUNA MUNASINGHE
Keywords: NVE, Second Life, Texture, Caching, Proxy
Issue Date: 21-Nov-2011
Source: CHANAKA ARUNA MUNASINGHE (2011-11-21). Texture Caching in Networked Virtual Environments. ScholarBank@NUS Repository.
Abstract: Networked virtual environments (NVEs) are an emerging class of Internet applications which allow geographically separated users to virtually meet each other. Real world objects such as buildings, meeting places and vehicles are imitated using graphically rendered 3D objects. Users are represented using graphical objects called avatars, which they can control to imitate natural human activities such as walking, running, dancing, as well as supernatural activities such as flying and teleporting. Voice chat are generally available to improve the realism of user interactions. Textures are one of the key components of graphics which bring in beauty and realism to virtual environments. Material and color information of virtual objects are represented using textures. Textures, however, introduce high amount of network traffic and limit widespread usage of NVEs. In this thesis, we study the use of proxy caching of textures as a solution to this problem. We used Second Life, a popular NVE as our experimental platform. Using information collected from Second Life, we synthesized workloads for a proxy cache. We conducted simulation experiments to identify cache policies to use in proxies and our experiments show that popularity based static caching schemes help to reduce network traffic associated with NVEs.
URI: http://scholarbank.nus.edu.sg/handle/10635/33278
Appears in Collections:Master's Theses (Open)

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