Download or read book Evaluation of Subdivision Methods Used in Octree Ray Tracing Algorithms written by Scott D. Brown and published by . This book was released on 1998 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The non-uniform spatial subdivision technique refined by Andrew Glassner [Glassner 1984] minimizes facet intersection tests (i) by automatically generating a density dependent spatial hierarchy of facet regions (called an octree) and (ii) by only testing facets in regions along the path of the ray. Past research has addressed optimization of the octree ray tracing process by separately improving both the octree traversal method and facet intersection algorithms. This author attempted to further improve the overall approach by attempting to identify new octree construction methods that would decrease the number of traversals required to render the scene. This research focused on the subdivision technique used in constructing the octree. The conventional Glassner algorithm utilizes cubic octants that can result in a large population of empty octants when rendering scenes containing localized regions with high facet density. Sparse octrees (containing significant numbers of empty octants) were believed to hinder performance of the facet traversal algorithm. As an alternative to the conventional cubic algorithm, the performance benefits of non-cubic octants were investigated. Octrees constructed with "rectangular" octants which more closely bound the scene were tested as one alternative to the cubic octants method. As a second alternative, this author proposed and implemented an "ideal-cut" subdivision algorithm that subdivides the parent octant through the mean location of the facets contained in the octant. For the scenes tested, the "conventional" cubic algorithm was shown to perform better than either alternative method, although, it was also shown to suffer from memory and run-time explosions on some scenes. The "rectangular" octant algorithm consistently approached the run-times produced by the "cubic" method. Since, the "rectangular" method defaults to the "cubic" method for scenes with 1:1:1 aspect ratios, the "rectangular" method must be considered as a reasonable alternative in rendering applications. The "idealcut""--Abstract.
Download or read book Advances in Computer Graphics Hardware V written by Richard L. Grimsdale and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers representing a comprehensive record of the contributions to the fifth workshop at EG '90 in Lausanne. The Eurographics hardware workshops have now become an established forum for the exchange of information about the latest developments in this field of growing importance. The first workshop took place during EG '86 in Lisbon. All participants considered this to be a very rewarding event to be repeated at future EG conferences. This view was reinforced at the EG '87 Hardware Workshop in Amsterdam and firmly established the need for such a colloquium in this specialist area within the annual EG conference. The third EG Hardware Workshop took place in Nice in 1988 and the fourth in Hamburg at EG '89. The first part of the book is devoted to rendering machines. The papers in this part address techniques for accelerating the rendering of images and efficient ways of improv ing their quality. The second part on ray tracing describes algorithms and architectures for producing photorealistic images, with emphasis on ways of reducing the time for this computationally intensive task. The third part on visualization systems covers a num ber of topics, including voxel-based systems, radiosity, animation and special rendering techniques. The contributions show that there is flourishing activity in the development of new algorithmic and architectural ideas and, in particular, in absorbing the impact of VLSI technology. The increasing diversity of applications encourage new solutions, and graphics hardware has become a research area of high activity and importance.
Download or read book Ray Tracing Gems written by Eric Haines and published by Apress. This book was released on 2019-02-25 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a must-have for anyone serious about rendering in real time. With the announcement of new ray tracing APIs and hardware to support them, developers can easily create real-time applications with ray tracing as a core component. As ray tracing on the GPU becomes faster, it will play a more central role in real-time rendering. Ray Tracing Gems provides key building blocks for developers of games, architectural applications, visualizations, and more. Experts in rendering share their knowledge by explaining everything from nitty-gritty techniques that will improve any ray tracer to mastery of the new capabilities of current and future hardware. What you'll learn: The latest ray tracing techniques for developing real-time applications in multiple domains Guidance, advice, and best practices for rendering applications with Microsoft DirectX Raytracing (DXR) How to implement high-performance graphics for interactive visualizations, games, simulations, and more Who this book is for:Developers who are looking to leverage the latest APIs and GPU technology for real-time rendering and ray tracing Students looking to learn about best practices in these areas Enthusiasts who want to understand and experiment with their new GPUs
Download or read book Discrete Geometry for Computer Imagery written by Eric Andres and published by Springer Science & Business Media. This book was released on 2005-04-07 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 12th International Conference on Discrete Geometry for Computer Imagery, DGCI 2005, held in Poitiers, France in April 2005. The 36 revised full papers presented together with an invited paper were carefully reviewed and selected from 53 submissions. The papers are organized in topical sections on applications, discrete hierarchical geometry, discrete tomography, discrete topology, object properties, reconstruction and recognition, uncertain geometry, and visualization.
Download or read book Course Notes written by International Conference on Computer Graphics and Interactive Techniques (Las Vegas, Nev.)) and published by . This book was released on 1991 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Graphics written by Er. Nagesh Jaitak and published by Lulu.com. This book was released on 2013-02-13 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer graphics is a field of computer science, which deals with creation, representation and management of images on the computer screen. Computer graphics deals with the technological and theoretical aspects of computerized image synthesis. An image created by a computer can illustrate a simple scene as well as complex scenes.
Download or read book An Introduction to Ray Tracing written by Andrew S. Glassner and published by Elsevier. This book was released on 1989-06-01 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: The creation of ever more realistic 3-D images is central to the development of computer graphics. The ray tracing technique has become one of the most popular and powerful means by which photo-realistic images can now be created. The simplicity, elegance and ease of implementation makes ray tracing an essential part of understanding and exploiting state-of-the-art computer graphics.An Introduction to Ray Tracing develops from fundamental principles to advanced applications, providing "how-to" procedures as well as a detailed understanding of the scientific foundations of ray tracing. It is also richly illustrated with four-color and black-and-white plates. This is a book which will be welcomed by all concerned with modern computer graphics, image processing, and computer-aided design. - Provides practical "how-to" information - Contains high quality color plates of images created using ray tracing techniques - Progresses from a basic understanding to the advanced science and application of ray tracing
Download or read book Advances in Computer Graphics Hardware written by and published by . This book was released on 1992 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EUROGRAPHICS 85 written by European Association for Computer Graphics and published by North Holland. This book was released on 1985 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Computer Graphics IV written by W.T. Hewitt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fourth volume of Advances in Computer Graphics gathers together a selection of the tutorials presented at the EUROGRAPHICS annual conference in Nice, France, Septem ber 1988. The six contributions cover various disciplines in Computer Graphics, giving either an in-depth view of a specific topic or an updated overview of a large area. Chapter 1, Object-oriented Computer Graphics, introduces the concepts of object ori ented programming and shows how they can be applied in different fields of Computer Graphics, such as modelling, animation and user interface design. Finally, it provides an extensive bibliography for those who want to know more about this fast growing subject. Chapter 2, Projective Geometry and Computer Graphics, is a detailed presentation of the mathematics of projective geometry, which serves as the mathematical background for all graphic packages, including GKS, GKS-3D and PRIGS. This useful paper gives in a single document information formerly scattered throughout the literature and can be used as a reference for those who have to implement graphics and CAD systems. Chapter 3, GKS-3D and PHIGS: Theory and Practice, describes both standards for 3D graphics, and shows how each of them is better adapted in different typical applications. It provides answers to those who have to choose a basic 3D graphics library for their developments, or to people who have to define their future policy for graphics.
Download or read book Proceedings of the ASME Design Engineering Technical Conferences written by and published by . This book was released on 2007 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comptes Rendus Interface Graphique written by and published by . This book was released on 2007 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Spatial Databases written by David Abel and published by Springer Science & Business Media. This book was released on 1993-06-07 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Third International Symposium on Large Spatial Databases (SSD '93) was held at the National University of Singapore in June 1993. The previous meetings of the series were at Sanata Barbara (1989) and Zurich (1991). The meetings are planned as a forum for researchers and practitioners specializing in database theory for and advanced applications of Spatial Information Systems. This volume constitutes the proceedings of the symposium. It contains 25 selected papersand three keynotes papers: "Spatial data management in database systems: research directions" (W. Kim), "From extensible databases to interoperability between multiple databases and GIS applications" (H.-J. Schek), and "The SEQUOIA 2000 project" (M. Stonebraker). The selectedpapers are collected into sections on: data modeling, spatial indexing, indexing mechanisms, handling of raster and vector data, spatial database systems, topology, storage management, query retrieval,knowledge engineering in SDS, and 3-dimensional data handling.
Download or read book ACM SIGGRAPH 87 written by and published by . This book was released on 1987 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Course Notes written by and published by . This book was released on 1990 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Visualization and Modeling written by Rae A. Earnshaw and published by . This book was released on 1997 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Visualization and Modeling is essential reading for anyone who wishes to examine expert thinking and current practice in this exciting and fast-moving area.
Download or read book 3D Rendering written by and published by PediaPress. This book was released on with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt:
