scholarly journals Emotion Modeling and Interaction of NPCS in Virtual Simulation and Games

2010 ◽  
Vol 9 (4) ◽  
pp. 1-6 ◽  
Author(s):  
Ling Li ◽  
James Campbell
Keyword(s):  
Virtual Environment ◽  
Virtual World ◽  
Virtual Simulation ◽  
Sociological Research ◽  
Model Based ◽  
Virtual Simulations ◽  
Emotion Model ◽  
Computer Controlled ◽  
Natural Emotion ◽  
Emotion Modeling

Virtual simulations and games utilizing NPCs, or computer controlled agents, are more predominant now than ever. Many of these simulations suffer from a lack of effective, stimulating, and natural emotion-based behaviours in the interaction among the NPCs, as well as with the human players. This paper presents an easy-to-use, portable, diverging, and adaptive emotion model based on psychological and sociological research, for simulation and game designers to utilize easily in their virtual world. The proposed emotion model allows the player to better relate, understand and believe in characters in the virtual environment

scholarly journals A Reference Framework to Combine Model-Based Design and AR to Improve Social Sustainability

2021 ◽  
Vol 13 (4) ◽  
pp. 2031
Author(s):  
Fabio Grandi ◽  
Riccardo Karim Khamaisi ◽  
Margherita Peruzzini ◽  
Roberto Raffaeli ◽  
Marcello Pellicciari
Keyword(s):  
Positive Impact ◽  
Cost Effective ◽  
Digital Models ◽  
Model Based ◽  
Digital Contents ◽  
Recent Developments ◽  
Virtual Simulations ◽  
Product And Process ◽  
The Impact ◽  
Time Information

Product and process digitalization is pervading numerous areas in the industry to improve quality and reduce costs. In particular, digital models enable virtual simulations to predict product and process performances, as well as to generate digital contents to improve the general workflow. Digital models can also contain additional contents (e.g., model-based design (MBD)) to provide online and on-time information about process operations and management, as well as to support operator activities. The recent developments in augmented reality (AR) offer new specific interfaces to promote the great diffusion of digital contents into industrial processes, thanks to flexible and robust applications, as well as cost-effective devices. However, the impact of AR applications on sustainability is still poorly explored in research. In this direction, this paper proposed an innovative approach to exploit MBD and introduce AR interfaces in the industry to support human intensive processes. Indeed, in those processes, the human contribution is still crucial to guaranteeing the expected product quality (e.g., quality inspection). The paper also analyzed how this new concept can benefit sustainability and define a set of metrics to assess the positive impact on sustainability, focusing on social aspects.

scholarly journals Low-Asymmetry Interface for Multiuser VR Experiences with Both HMD and Non-HMD Users

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 397
Author(s):  
Qimeng Zhang ◽  
Ji-Su Ban ◽  
Mingyu Kim ◽  
Hae Won Byun ◽  
Chang-Hun Kim
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Mobile Device ◽  
User Satisfaction ◽  
Virtual World ◽  
User Study ◽  
Visual Display ◽  
Point Of View ◽  
Head Mounted Display ◽  
And Behavior

We propose a low-asymmetry interface to improve the presence of non-head-mounted-display (non-HMD) users in shared virtual reality (VR) experiences with HMD users. The low-asymmetry interface ensures that the HMD and non-HMD users’ perception of the VR environment is almost similar. That is, the point-of-view asymmetry and behavior asymmetry between HMD and non-HMD users are reduced. Our system comprises a portable mobile device as a visual display to provide a changing PoV for the non-HMD user and a walking simulator as an in-place walking detection sensor to enable the same level of realistic and unrestricted physical-walking-based locomotion for all users. Because this allows non-HMD users to experience the same level of visualization and free movement as HMD users, both of them can engage as the main actors in movement scenarios. Our user study revealed that the low-asymmetry interface enables non-HMD users to feel a presence similar to that of the HMD users when performing equivalent locomotion tasks in a virtual environment. Furthermore, our system can enable one HMD user and multiple non-HMD users to participate together in a virtual world; moreover, our experiments show that the non-HMD user satisfaction increases with the number of non-HMD participants owing to increased presence and enjoyment.

A Transparent and Decentralized Model of Perception and Action for Intelligent Virtual Agents

2014 ◽  
Vol 23 (04) ◽  
pp. 1460020 ◽  
Author(s):  
George Anastassakis ◽  
Themis Panayiotopoulos
Keyword(s):  
Knowledge Representation ◽  
Virtual Environment ◽  
Virtual World ◽  
Perception And Action ◽  
Virtual Agents ◽  
Virtual Agent ◽  
Complex Interactions ◽  
Intelligent Virtual Agents ◽  
Decentralized Model ◽  
Over Time

Intelligent virtual agent behaviour is a crucial element of any virtual environment application as it essentially brings the environment to life, introduces believability and realism and enables complex interactions and evolution over time. However, the development of mechanisms for virtual agent perception and action is neither a trivial nor a straight-forward task. In this paper we present a model of perception and action for intelligent virtual agents that meets specific requirements and can as such be systematically implemented, can seamlessly and transparently integrate with knowledge representation and intelligent reasoning mechanisms, is highly independent of virtual world implementation specifics, and enables virtual agent portability and reuse.

Virtual Reality (VR) in Pediatrics: Innovative Perspectives With Special Reference To Clinical Applications and Pediatric Rehabilitation

2021 ◽  
Author(s):  
Stefan Bittmann
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual Worlds ◽  
Virtual World ◽  
Mixed Reality ◽  
Clinical Applications ◽  
Virtual Space ◽  
Data Glove ◽  
Input Devices ◽  
Head Mounted Displays

Virtual reality (VR) is the term used to describe representation and perception in a computer-generated, virtual environment. The term was coined by author Damien Broderick in his 1982 novel “The Judas Mandala". The term "Mixed Reality" describes the mixing of virtual reality with pure reality. The term "hyper-reality" is also used. Immersion plays a major role here. Immersion describes the embedding of the user in the virtual world. A virtual world is considered plausible if the interaction is logical in itself. This interactivity creates the illusion that what seems to be happening is actually happening. A common problem with VR is "motion sickness." To create a sense of immersion, special output devices are needed to display virtual worlds. Here, "head-mounted displays", CAVE and shutter glasses are mainly used. Input devices are needed for interaction: 3D mouse, data glove, flystick as well as the omnidirectional treadmill, with which walking in virtual space is controlled by real walking movements, play a role here.

A New Partitioning Method Based on AOI Model Matching in CVE Systems

2012 ◽  
Vol 241-244 ◽  
pp. 3116-3120
Author(s):  
Xiao Mei Hu ◽  
Biao Wang
Keyword(s):  
Virtual Environment ◽  
Virtual World ◽  
Experimental Results ◽  
Model Matching ◽  
Collaborative Virtual Environment ◽  
Area Of Interest ◽  
Key Issues ◽  
Partitioning Problem ◽  
Server Architecture

Collaborative Virtual Environment (CVE) system supports a large number of users to explore a virtual world and interact with each other through networks, so one of the key issues in the design of scalable CVE systems is the partitioning problem. Existing partitioning algorithms in CVE systems based on multiple-server architecture, in our opinion, hardly consider the communication character of virtual environment. In this paper, we propose a new partitioning method based on area of interest (AOI) model matching to improve the quality of partitioning. The experimental results show preliminarily that our partitioning approach based on AOI model matching does decrease the traffic among the servers in the system and improve the partitioning performance.

scholarly journals The Application of Virtual Simulations Using Second Life in a Foreign Language Classroom

2014 ◽  
Vol 2 (1) ◽  
pp. 67 ◽  
Author(s):  
Tecnam Yoon
Keyword(s):  
Foreign Language ◽  
Language Learning ◽  
Learning Community ◽  
Second Life ◽  
Virtual Simulation ◽  
English Learning ◽  
Language Class ◽  
Simulation Based ◽  
Language Classroom ◽  
Virtual Simulations

<p><em>The purpose of this paper is to investigate the effects of virtual simulation-based language learning in a foreign language class in Korea. Total 35 1st-year university students in Korea participated in this research to figure out the effect of simulations. A virtual English learning community, ‘Cypris Chat’ in Second Life was selected as a learning tool. For the data collection, a survey questionnaire was distributed and analyzed quantitatively. The result shows that the majority of the students had a positive attitude toward using a virtual simulation in English learning and had better understanding in learning English by experiencing an authentic practice. The first section of this paper provides a general overview of simulations in educational settings through an insightful literature review of the current research in the area. The review includes a comprehensive outlook on simulations, an example of successful classroom integration and some of the considerations researchers have found for their implementation. The latter section addresses the research method, results and conclusions.</em></p>

Exploring the Use of a 3D Virtual Environment in Cultural Transmission to Show Chinese Cultural Project “Confucius' Journey” as an Example

2015 ◽  
pp. 92-104
Author(s):  
Yungang Wei ◽  
Xiaoye Tan ◽  
Xiaoran Qin ◽  
Xiaohang Yu ◽  
Bo Sun ◽  
...  
Keyword(s):  
Virtual Environment ◽  
Virtual World ◽  
Cultural Transmission ◽  
Virtual Human ◽  
Virtual Technology ◽  
Scene Construction ◽  
Intelligent Interaction ◽  
3D Virtual World ◽  
3D Virtual Environment ◽  
World Environment

The use of 3D virtual technology in cultural transmission has been more and more innovative and popular in the recent years. Meanwhile, with the high interactivity, experience of virtual technology deeply rooted in the people's hearts, the use of 3D virtual world in cultural transmission shows an evident advantage. Through scene construction and intelligent interaction in a 3D virtual world environment, we developed the project “Confucius' Journey”. And considering the problems in such applications, such as the lack of interaction and reduced effectiveness in representing the application purpose, we explored interactive objects and virtual human technology. In addition, we can verify the advantage of using the 3D platform via the experimental results.

Virtual Worlds

2017 ◽  
pp. 549-568
Author(s):  
Michelangelo Tricarico
Keyword(s):  
Virtual Environments ◽  
Virtual Environment ◽  
Virtual Worlds ◽  
Virtual World ◽  
Learning Activities ◽  
Specific Field ◽  
Early School ◽  
Virtual Reconstruction ◽  
3D Virtual Environment ◽  
Master Builder

This chapter discusses the author's experience in virtual environments, with particular reference to virtual reconstruction. The events are narrated from the perspective of a student who at first developed his skills in this specific field at school, and then became competent and passionate enough to teach what he had learned in the course of time. He describes his experience from early school projects to the personal ones; from his award as a “Master Builder” to his early teaching lessons. Other learning activities that can be carried out in a virtual world are also illustrated, with particular reference to “coding”, which appears to be of great interest to the author. The main objective of this paper is to highlight the potential of a 3D virtual environment for the reconstruction of monuments, i.e., the author's area of expertise. It also provides a description of other activities that can be performed in a virtual environment, while illustrating the most common issues that can be experienced and suggesting how to solve them.

Self-Developing a MUVE for Research and Educational Innovations

2010 ◽  
pp. 453-470 ◽  
Author(s):  
Nick V. Flor
Keyword(s):  
Virtual Environment ◽  
Virtual Worlds ◽  
Virtual World ◽  
Instructional Materials ◽  
Educational Innovations ◽  
Single Person

Multi-user virtual environment (MUVE) researchers need to create their own virtual worlds and to stop waiting for industry to create innovations. The technology and instructional materials for creating virtual worlds have advanced to the point where a single person, unaided, can develop a virtual world that is suitable for experimentation—even though it may lack the aesthetics of commercially available worlds. The aim of this chapter is to demystify the development of virtual worlds by describing the fundamental skill set you must acquire to self-develop a virtual world. The skills are: modeling, texturing, animation, and programming. The author focuses on two of these skills, modeling and texturing, and describe a set of core techniques for creating the exterior of a virtual world. By practicing and building on these techniques, one can create the interiors and characters for more complex MUVES.

Legal Issues in the Virtual World and E-Commerce

2011 ◽  
pp. 186-204 ◽  
Author(s):  
Daniel S. Hoops
Keyword(s):  
Virtual Environment ◽  
Virtual World ◽  
Legal Issues ◽  
Business Practices ◽  
Field Change ◽  
Playing Field ◽  
Business Transactions ◽  
Innovative Methods ◽  
New Frontier ◽  
Business To Business

Cyberspace is such an enormous concept that trying to briefly explain the “rules” for E-Commerce or “cyberlaw” is next to impossible. For an E-Commerce, it is important to understand that there are business-to-business transactions and those involving consumers. In addition to requiring a mastery of many legal specialties, E-Commerce presents legal issues in a virtual environment. Many business practices in a cyberspace are untested in the courts. New and innovative methods of competition, as well as the effects of an international playing field change the playfield constantly. The legalities of this great new frontier pose an impressive and intellectually stimulating challenge. This chapter is a survey and summary of the legal environment in the E-Commerce and the virtual world.

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