[share_ebook] An Introduction to Computer Graphics and Creative 3-D Environments.Barry G. Blundell.Springer.2008

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An Introduction to Computer Graphics and Creative 3-D Environments Authors Barry G. Blundell MInstP CPhys CSci MBCS CEng CITP MRSNZ Auckland University of Technology Auckland New Zealand Publisher: Springer-Verlag London Limited 2008 Pages: 507 ISBN: 978-1-84800-041-4 e-ISBN: 978-1-84800-042-1 Preface This book is designed to be a course text for students studying computer graphics and related subjects at the introductory level within the context of an undergraduate or graduate degree programme. The content is presented in such a way as to ensure that it is accessible to the widest possible audience and wherever feasible a trans-disciplinary approach is adopted, thereby making the subject matter accessible to students of both the traditional Arts and Sciences. The book is designed to support the infusion of research content within the course curriculum. Coverage includes: 1. An introduction to computer graphics – both two and three-dimensional image depiction. Here we primarily focus on fundamental techniques and methodologies that underpin the formation and manipulation of image scenes. 2. Basic mathematical techniques employed in computer graphics. Only an elementary knowledge of maths is assumed – our primary objective is to ensure that the contents are accessible to students with diverse backgrounds. At the same time, the introductory coverage of maths is structured in a way that enables students who have previously studied this material to easily verify their skills and, if appropriate, skip material with which they are already familiar. 3. Discussion in relation to key aspects of the human visual system and the suitability of the traditional computer display to optimally interface with our complex sense of sight. In this context we consider a range of pictorial, oculomotor, and parallax depth cues and discuss facets of 3-D image depiction. 4. Computer graphics provides the primary means by which we visualise the results of the computational process and also underpins our interaction with the digital domain. With this in mind, we consider aspects of the human-computer interaction process and the synergy that exists between the visual image and interaction tools. This includes discussion of haptic technologies and bi-manual interaction. 5. Various ‘creative’ 3-D display system technologies (including stereoscopic, multi-view, volumetric, varifocal and holographic techniques) are introduced. Here, we consider characteristics of the displayed image, discuss interaction opportunities, and highlight key strengths and weaknesses. Anaglyph, stereo, and Pulfrich viewing glasses are supplied with this book. These are intended to provide the reader with the opportunity to experiment with 3-D images. The anaglyph glasses can be used to view images reproduced in the text. A number of stereograms are also provided and these can be easily viewed using the stereo glasses or, after a little practice, they can be fused directly. The Pulfrich glasses provide an interesting insight into characteristics of the human visual system and can be used when viewing dynamic computer generated images or television scenes – enabling a scene to appear to reside within a 3-D space rather than within the confines of the 2-D screen on which it is actually displayed. In addition, if you are interested in obtaining a simple interactive program that will enable you to create line drawings in stereo form (and so experiment with 3-D image formation) please contact the author directly at the e-mail address given below. The book has been designed to enable some flexibility in the order in which content is studied. For example, Chapter 5 (Interfacing with the Visual System), Chapter 9 (Creative 3-D Display Systems) and Chapter 10 (Interaction and Haptic Feedback) are, in the main, independent of the other chapters and can therefore be read out of sequence. To aid the learning process a number of ‘Over to You’ (OTU) exercises are presented within the body of each chapter. These are designed to reinforce and/or extend discussion. Feedback on selected exercises is provided towards the end of the book. In addition, chapters are accompanied by review questions (and possible solutions) which are intended to give an opportunity for revision. At the beginning of each chapter a fragment of text and an image are presented. These are reproduced from the outstanding book, ‘Memories’ by John Galsworthy, the illustrations being created by Maud Earl (see also Figure 1.8). This book was first published in 1911 and provides an excellent example of the synergy that can exist between two mediums of expression – both of which impinge on our imagination and equally support a ‘suspension of disbelief ’ (see related discussion in Chapter 1). In fact, as the reader will note, the images created by Maud Earl have a number of remarkable attributes – not the least of which is their ‘kinetic’ form. Although we are presented with a single static image (corresponding to an image frame) we can anticipate the dog’s (Chris’s) motion. Despite the care that has been taken in the preparation of this book, errors and omissions will undoubtedly have occurred. The author would very much appreciate feedback from readers, especially concerning ways in which future editions could be improved, and in relation to any work that has been omitted or incorrectly attributed. It has been a privilege to have had the opportunity to write this book. It is hoped that you will enjoy perusing its contents and that having done so you will feel encouraged to study computer graphics (and related subjects) at a more advanced level. Barry G. Blundell [email=Barry.blundell@physics.org]Barry.blundell@physics.org[/email]

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