Virtual Realities

A comprehensive overview of developments in augmented reality, virtual reality, and mixed reality—and how they could affect every part of our lives. After years of hype, extended reality—augmented reality (AR), virtual reality (VR), and mixed reality (MR)—has entered the mainstream. Commercially available, relatively inexpensive VR headsets transport wearers to other realities—fantasy worlds, faraway countries, sporting events—in ways that even the most ultra-high-definition screen cannot. AR glasses receive data in visual and auditory forms that are more useful than any laptop or smartphone can deliver. Immersive MR environments blend physical and virtual reality to create a new reality. In this volume in the MIT Press Essential Knowledge series, technology writer Samuel Greengard offers an accessible overview of developments in extended reality, explaining the technology, considering the social and psychological ramifications, and discussing possible future directions. Greengard describes the history and technological development of augmented and virtual realities, including the latest research in the field, and surveys the various shapes and forms of VR, AR, and MR, including head-mounted displays, mobile systems, and goggles. He examines the way these technologies are shaping and reshaping some professions and industries, and explores how extended reality affects psychology, morality, law, and social constructs. It's not a question of whether extended reality will become a standard part of our world, he argues, but how, when, and where these technologies will take hold. Will extended reality help create a better world? Will it benefit society as a whole? Or will it merely provide financial windfalls for a select few? Greengard's account equips us to ask the right questions about a transformative technology.

During the last decade the word virtual became one of the most exposed words in the English language. Today we have virtual universities, virtual offices, virtual pets, virtual actors, virtual museums, virtual doctors - and all because of virtual reality. So what is virtual reality? Essentially, virtual reality is about the navigation and manipulation of 3D computer-generated environments. A VR user is able to navigate by walking, running or even flying through a virtual environment and explore viewpoints that would be impossible in the real world. But the real benefit of VR is the ability to touch, animate, pickup and reposition virtual objects and create totally new configurations. Key topics: The origins of VR How VR works How VR is being used The field of Virtual Reality is moving very quickly and increasing numbers of people need to know more about this exciting subject. Introduction to Virtual Reality explains what VR is about, without going into the underlying mathematical techniques, but at the same time providing a solid understanding and foundation of the techniques and applications involved.

Computers have dramatically altered life in the late twentieth century. Today we can draw on worldwide computer links, speeding up communications by radio, newspapers, and television. Ideas fly back and forth and circle the globe at the speed of electricity. And just around the corner lurks full-blown virtual reality, in which we will be able to immerse ourselves in a computer simulation not only of the actual physical world, but of any imagined world. As we begin to move in and out of a computer-generated world, Michael Heim asks, how will the way we perceive our world change? In The Metaphysics of Virtual Reality, Heim considers this and other philosophical issues of the Information Age. With an eye for the dark as well as the bright side of computer technology, he explores the logical and historical origins of our computer-generated world and speculates about the future direction of our computerized lives. He discusses such topics as the effect of word-processing on the English language (while word-processors have led to increased productivity, they have also led to physical hazards such as repetitive motion syndrome, which causes inflamed hand and arm tendons). Heim looks into the new kind of literacy promised by Hypertext (technology which allows the user to link audio and video elements, the disadvantages including disorientation and cognitive overload). And he also probes the notion of virtual reality, "cyberspace"--the computer-simulated environments that have captured the popular imagination and may ultimately change the way we define reality itself. Just as the definition of interface itself has evolved from the actual adapter plug used to connect electronic circuits into human entry into a self-contained cyberspace, so too will the notion of reality change with the current technological drive. Like the introduction of the automobile, the advent of virtual reality will change the whole context in which our knowledge and awareness of life are rooted. And along the way, Heim covers such intriguing topics as how computers have altered our thought habits, how we will be able to distinguish virtual from real reality, and the appearance of virtual reality in popular culture (as in Star Trek's holodeck, William Gibson's Neuromancer, and Stephen King's Lawnmower Man). Vividly and entertainingly written, The Metaphysics of Virtual Reality opens a window on a fascinating world that promises--or threatens--to become an integral part of everyday life in the 21st century. As Heim writes, not only do we face a breakthrough in the technology of computer interface, but we face the challenge of knowing ourselves and determining how the technology should develop and ultimately affect the society in which it grows.

Despite popular forays into augmented and virtual reality in recent years, spatial computing still sits on the cusp of mainstream use. Developers, artists, and designers looking to enter this field today have few places to turn for expert guidance. In this book, Erin Pangilinan, Steve Lukas, and Vasanth Mohan examine the AR and VR development pipeline and provide hands-on practice to help you hone your skills. Through step-by-step tutorials, you’ll learn how to build practical applications and experiences grounded in theory and backed by industry use cases. In each section of the book, industry specialists, including Timoni West, Victor Prisacariu, and Nicolas Meuleau, join the authors to explain the technology behind spatial computing. In three parts, this book covers: Art and design: Explore spatial computing and design interactions, human-centered interaction and sensory design, and content creation tools for digital art Technical development: Examine differences between ARKit, ARCore, and spatial mapping-based systems; learn approaches to cross-platform development on head-mounted displays Use cases: Learn how data and machine learning visualization and AI work in spatial computing, training, sports, health, and other enterprise applications

The recognition that cyberspace is a fiction -- a narrative that creates a coherence it would like to imagine "really" exists -- is crucial to any theoretically sophisticated critique of the limitations of this consensual hallucination and the discontents it imperfectly masks. In this groundbreaking volume Robert Markley and his co-authors set out to discover why "cyberspace provokes often-rapturous rhetoric but resists critical analysis." Taking a variety of approaches, the authors explore the ways in which virtual realities conserve and incorporate rather than overthrow the assumptions and values of a traditional, logocentric humanism: the Platonist division of the world into the physical and metaphysical in which ideal forms are valued over material content. Cyberspace, David Porush suggests, represents not a break with our metaphysical past but an extension of its basic theistic postulates. Richard Grusin argues that the claims for new forms of electronic communication depend upon the very notions of authorship -- and subjectivity -- they claim to transcend. N. Katherine Hayles examines debates about cybernetics in the 1950s to demonstrate that the history of mind-body ideas in the age of computers and feedback loops is itself conflicted. David Brande analyzes cyberspace as an extension of the logic of late twentieth-century capitalism. And Robert Markley explores the entangled roots of cyberspace in the philosophy of mathematics. "One of the ironies of our culture's fascination with cyberspace is that our material and psychic investments in Virtual Reality suggest that the death of print culture -- or its disappearance into the matrix -- has been greatly exaggerated.... Cyberspace is unthinkable, literally inconceivable, without the print culture it claims to transcend. It is, in part, a by-product of a tradition of metaphysics that, boats against the current, bears us back relentlessly to our past." -- Robert Markley, from the introduction

This comprehensive textbook offers a scientifically sound and at the same time practical introduction to Virtual and Augmented Reality (VR/AR). Readers will gain the theoretical foundation needed to design, implement or enhance VR/AR systems, evaluate and improve user interfaces and applications using VR/AR methods, assess and enrich user experiences, and develop a deeper understanding of how to apply VR/AR techniques. Whether utilizing the book for a principal course of study or reference reading, students of computer science, education, media, natural sciences, engineering and other subject areas can benefit from its in-depth content and vivid explanation. The modular structure allows selective sequencing of topics to the requirements of each teaching unit and provides an easy-to-use format from which to choose specific themes for individual self-study. Instructors are provided with extensive materials for creating courses as well as a foundational text upon which to build their advanced topics. The book enables users from both research and industry to deal with the subject in detail so they can properly assess the extent and benefits of VR/AR deployment and determine required resources. Technology enthusiasts and professionals can learn about the current status quo in the field of VR/AR and interested newcomers can gain insight into this fascinating world. Grounded on a solid scientific foundation, this textbook, addresses topics such as perceptual aspects of VR/AR, input and output devices including tracking, interactions in virtual worlds, real-time aspects of VR/AR systems and the authoring of VR/AR applications in addition to providing a broad collection of case studies.

A leading philosopher takes a mind-bending journey through virtual worlds, illuminating the nature of reality and our place within it. Virtual reality is genuine reality; that’s the central thesis of Reality+. In a highly original work of “technophilosophy,” David J. Chalmers gives a compelling analysis of our technological future. He argues that virtual worlds are not second-class worlds, and that we can live a meaningful life in virtual reality. We may even be in a virtual world already. Along the way, Chalmers conducts a grand tour of big ideas in philosophy and science. He uses virtual reality technology to offer a new perspective on long-established philosophical questions. How do we know that there’s an external world? Is there a god? What is the nature of reality? What’s the relation between mind and body? How can we lead a good life? All of these questions are illuminated or transformed by Chalmers’ mind-bending analysis. Studded with illustrations that bring philosophical issues to life, Reality+ is a major statement that will shape discussion of philosophy, science, and technology for years to come.

Breaking the reality barrier ; the reality-industrial complex ; virtual reality and the future.