Interactive multiuser VEs in the DIVE system

Hagsand, Olof

doi:10.1109/93.486702

Cited by 232 publications

(127 citation statements)

References 8 publications

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“…[17]. Myriad extends Syzygy by adding an info node which stores a string and can add semantics to a scene graph, much like constructions in [7] and [8]. Each node has an ID, unique in the context of its owning scene graph.…”

Section: Myriad Scene Graphmentioning

confidence: 99%

“…In contrast, projects like Continuum [4] or CAVERNsoft [11,15] use a general shared object system. A middle ground is found in scene-graph-based CVEs that share graphics information, but in a way suitable for generic tasks: DIVE [2,8], Repo 3D [12], Avango (formerly Avocado) [20], and Distributed Open Inventor [9]. Since Myriad also shares data through a general scene graph, it is most closely related to these systems.…”

Section: Previous Workmentioning

confidence: 99%

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Myriad: scalable VR via peer‐to‐peer connectivity, PC clustering, and transient inconsistency

Schaeffer

Brinkmann

Francis³

et al. 2006

Computer Animation & Virtual

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Distributed scene graphs are important in virtual reality, both in collaborative virtual environments and in cluster rendering. In Myriad, individual scene graphs form a peer-to-peer network whose connections filter scene graph updates and create flexible relationships between scene graph nodes in the various peers. Modern scalable visualization systems often feature high intracluster throughput, but collaborative virtual environments (VEs) over a WAN share data at much lower rates, complicating the use of one scene graph system across the whole application. To avoid these difficulties, Myriad uses fine-grained sharing, whereby sharing properties of individual scene graph nodes can be dynamically changed from C++ and Python, and transient inconsistency, which relaxes resource requirements in collaborative VEs. A test application, WorldWideCrowd, implements these methods to demonstrate collaborative prototyping of a 300-avatar crowd animation viewed on two PCcluster displays and edited on low-powered laptops, desktops, and even over a WAN.

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Section: Myriad Scene Graphmentioning

confidence: 99%

Section: Previous Workmentioning

confidence: 99%

Myriad: scalable VR via peer‐to‐peer connectivity, PC clustering, and transient inconsistency

Schaeffer

Brinkmann

Francis³

et al. 2006

Computer Animation & Virtual

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“…Some of the most well-known systems of this kind include DIVE [4], MASSIVE [22], NPSNET [3], SPLINE [5], and VLNET [23]. These systems focus on speciic applications to reduce the overall implementation complexity.…”

Section: Existing Game Engine Solutionsmentioning

confidence: 99%

“…Before the appearance of game engine technologies [1,2], existing systems were often developed as virtual augmented reality systems to handle speciic tasks such as NPSNET [3], DIVE [4], and SPLINE [5]. Thus, any modiication required a hard change in the programming environment and architecture.…”

Section: Introductionmentioning

confidence: 99%

Game Engine Solutions

Zarrad¹

2018

Simulation and Gaming

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The rapid development of hardware and system platforms provides a favorable foundation for game development. A game engine overview is introduced irst. Then, key features and available solutions of game engines are discussed. Typical products of game engines are shown and evaluated. Finally, we summarize our indings.Keywords: game engine, game builder, 3D game, 2D game, engine architecture IntroductionGame engines are a new way to develop high-quality games easily and rapidly without needing intensive programming skills and computational resources. Today, there is growing interest in game engines due to the rapid development of hardware and system platforms.3D game engines help game companies reduce their cost, time, and manpower, since game developers can use the available functionalities of the engine. However, with over 100 engines available in the market for commercial and educational purposes, with a wide range of diverse features, each with its own performance levels, license types, and cost structures, selecting an appropriate game engine for a speciic purpose becomes a challenging problem.Game engine systems hit the headlines only a few years ago. Before the appearance of game engine technologies [1,2], existing systems were often developed as virtual augmented reality systems to handle speciic tasks such as NPSNET [3], DIVE [4], and SPLINE [5]. Thus, any modiication required a hard change in the programming environment and architecture. As game engine technology matures and becomes more lexible, implementing a 3D environment will become easier. Despite these improvements, programming skills remain a concern, and usually sabotage developers who want to create complex environments.© 2018 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Game developers usually have advanced programming skills and often block the system from user manipulation or misuse, which further complicates the task. Most game engines are limited to speciic tasks and their features are typically coupled with speciic game characteristics. Thus, developing extensions or modiications that force a game engine to adopt a new class of applications is almost impossible. Recently, many techniques and programming approaches such as virtual reality modeling language (VRML) [6] [10] have been proposed to overcome the limitations, brought about by the interconnected gaming engine and development platform, to ofer a beter solution.In this chapter, we evaluate the latest released game engine from a variety of aspects like modularity, performance, usability, library, speed, and the realism. The readers will obtain an overview of game engine research, while becoming familiar with the recent developments and technologies in this area. Existing game engine solutionsAs technology moves forward, the need for mul...

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“…The DIVE (Carlsson & Hagsand, 1993;Hagsand, 1996), AVIARY (Snowdon, 1994), and dVS (Ghee, 1995) systems provide a task-level decomposition of a VE application. Each system provides components common to VE applications, such as tracking device interfacing, geometric object maintenance, and visualizer components that render the user's view.…”

Section: Related Workmentioning

confidence: 99%

The Simple Virtual Environment Library: An Extensible Framework for Building VE Applications

Kessler

Bowman

Hodges

2000

Presence: Teleoperators & Virtual Environments

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As virtual environment (VE) technology becomes accessible to (and affordable for) an ever-widening audience of users, the demand for VE applications will increase. Tools that assist and facilitate the development of these applications, therefore, will also be in demand. To support our efforts in quickly designing and implementing VE applications, we have developed the Simple Virtual Environment (SVE) library. In this article, we describe the characteristics of the library that support the development of both simple and complex VE applications. Simple applications are created by novice programmers or for rapid prototyping. More-complex applications incorporate new user input and output devices, as well as new techniques for user interaction, rendering, or animation. The SVE library provides more-comprehensive support for developing new VE applications and better supports the various device configurations of VE applications than current systems for 3-D graphical applications. The development of simple VE applications is supported through provided default interaction, rendering, and user input and output device handling. The library's framework includes an execution framework that provides structure for incrementally adding complexity to selected tasks of an application, and an environment model that provides a layer of abstraction between the application and the device configuration actually used at runtime. This design supports rapid development of VE applications through incremental development, code reuse, and independence from hardware resources during the development. IntroductionThe development of VE applications is an area inviting experimentation. In particular, the field is open to new applications, different device configurations, new techniques for rendering, interaction, and model maintenance. Such experimentation is most productive when new ideas and designs can be implemented quickly and then compared to previous implementations. However, developing even simple VE applications with limited or no software support requires a considerable amount of expertise and development time. In addition, it is quite difficult to reuse modules of VE applications in projects that use different configurations.To support the rapid development of novel VE applications that may introduce new environments, behaviors, or software techniques, we have developed

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Interactive multiuser VEs in the DIVE system

Cited by 232 publications

References 8 publications

Myriad: scalable VR via peer‐to‐peer connectivity, PC clustering, and transient inconsistency

Myriad: scalable VR via peer‐to‐peer connectivity, PC clustering, and transient inconsistency

Game Engine Solutions

The Simple Virtual Environment Library: An Extensible Framework for Building VE Applications

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