Advanced Global Illumination

Author: Philip Dutre,Philippe Bekaert,Kavita Bala

Publisher: CRC Press

ISBN: 1315359871

Category: Computers

Page: 384

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This book provides a fundamental understanding of global illumination algorithms. It discusses a broad class of algorithms for realistic image synthesis and introduces a theoretical basis for the algorithms presented. Topics include: physics of light transport, Monte Carlo methods, general strategies for solving the rendering equation, stochastic path-tracing algorithms such as ray tracing and light tracing, stochastic radiosity including photon density estimation and hierarchical Monte Carlo radiosity, hybrid algorithms, metropolis light transport, irradiance caching, photon mapping and instant radiosity, beyond the rendering equation, image display and human perception. If you want to design and implement a global illumination rendering system or need to use and modify an existing system for your specific purpose, this book will give you the tools and the understanding to do so.
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Realistic Image Synthesis Using Photon Mapping

Author: Henrik Wann Jensen

Publisher: A K Peters/CRC Press

ISBN: 9781568811475

Category: Computers

Page: 193

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Photon mapping, an extension of ray tracing, makes it possible to efficiently simulate global illumination in complex scenes. Photon mapping can simulate caustics (focused light, like shimmering waves at the bottom of a swimming pool), diffuse inter-reflections (e.g., the "bleeding" of colored light from a red wall onto a white floor, giving the floor a reddish tint), and participating media (such as clouds or smoke). This book is a practical guide to photon mapping; it provides the theory and practical insight necessary to implement photon mapping and simulate all types of direct and indirect illumination efficiently.
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Radiosity and Global Illumination

Author: François X. Sillion,Claude Puech

Publisher: Springer Science & Business

ISBN: 9781558602779

Category: Computers

Page: 251

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The book discusses practical issues and provides a complete presentation of the most recent and innovative advances in the radiosity method: an exciting new technique for producing synthetic images. Unique illustrations and 45 color plates make this visually appealing to computer graphics buyers.
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Principles of Digital Image Synthesis

Author: Andrew S. Glassner

Publisher: Morgan Kaufmann

ISBN: 9781558602762

Category: Computers

Page: 1600

View: 9536

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Focusing on theory, Glassner provides a comprehensive explanation of the three core fields of study that come together to form digital image synthesis--the human visual system, digital signal processing and the interaction of matter and light.
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Practical Global Illumination with Irradiance Caching

Author: Jaroslav Krivanek,Pascal Gautron

Publisher: Morgan & Claypool Publishers

ISBN: 1598296442

Category: Computers

Page: 134

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Irradiance caching is a ray tracing-based technique for computing global illumination on diffuse surfaces. Specifically, it addresses the computation of indirect illumination bouncing off one diffuse object onto another. The sole purpose of irradiance caching is to make this computation reasonably fast. The main idea is to perform the indirect illumination sampling only at a selected set of locations in the scene, store the results in a cache, and reuse the cached value at other points through fast interpolation. This book is for anyone interested in making a production-ready implementation of irradiance caching that reliably renders artifact-free images. Since its invention 20 years ago, the irradiance caching algorithm has been successfully used to accelerate global illumination computation in the Radiance lighting simulation system. Its widespread use had to wait until computers became fast enough to consider global illumination in film production rendering. Since then, its use is ubiquitous. Virtually all commercial and open-source rendering software base the global illumination computation upon irradiance caching. Although elegant and powerful, the algorithm in its basic form often fails to produce artifact-free mages. Unfortunately, practical information on implementing the algorithm is scarce. The main objective of this book is to show the irradiance caching algorithm along with all the details and tricks upon which the success of its practical implementation is dependent. In addition, we discuss some extensions of the basic algorithm, such as a GPU implementation for interactive global illumination computation and temporal caching that exploits temporal coherence to suppress flickering in animations. Our goal is to show the material without being overly theoretical. However, the reader should have some basic understanding of rendering concepts, ray tracing in particular. Familiarity with global illumination is useful but not necessary to read this book. Table of Contents: Introduction to Ray Tracing and Global Illumination / Irradiance Caching Core / Practical Rendering with Irradiance Caching / Irradiance Caching in a Complete Global Illumination / Irradiance Caching on Graphics Hardware / Temporal Irradiance Caching
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Rendering with Radiance

The Art and Science of Lighting Visualization

Author: Greg Ward Larson,Rob Shakespeare

Publisher: CreateSpace

ISBN: 9780974538105

Category: Art

Page: 664

View: 7651

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Ray Tracing from the Ground Up

Author: Kevin Suffern

Publisher: CRC Press

ISBN: 1439864349

Category: Computers

Page: 784

View: 7426

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With the increase in computing speed and due to the high quality of the optical effects it achieves, ray tracing is becoming a popular choice for interactive and animated rendering. This book takes readers through the whole process of building a modern ray tracer from scratch in C++. All concepts and processes are explained in detail with the aid o
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Real-time rendering

Author: Tomas Möller,Eric Haines

Publisher: A K Peters, Ltd.

ISBN: 9781568811826

Category: Computers

Page: 835

View: 4724

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After three years this "wonderful all-around resource" of computer graphics, "indispensable for every serious graphics programmer", is available in a completely revised and updated edition. Nearly doubled in size, the new edition keeps pace with the astonishing developments in hardware and software that have increased the speed and quality of rendering images. The new edition includes information on the latest technology that is being released concurrently with the publication. The book's trademark--blending solid theory and practical advice--remains intact, making it mandatory for every programmer who wants to stay at the cutting edge. The book contains chapters as diverse as: - Transforms - Visual Appearance - Acceleration Algorithms - Advanced Shading Techniques (New Chapter) - Curved Surfaces (New Chapter) With Topics Including: - Pixel shaders - Subdivision surfaces - Intersection algorithms - Pipeline tuning
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Radiosity and Realistic Image Synthesis

Author: Michael F. Cohen,John R. Wallace,Pat Hanrahan

Publisher: Morgan Kaufmann

ISBN: 9780121782702

Category: Computers

Page: 381

View: 1643

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The goal of image synthesis is to create, using the computer, a visual experience that is identical to what a viewer would experience when viewing a real environment. Radiosity and Realistic Image Synthesis offers the first comprehensive look at the radiosity method for image synthesis and the tools required to approach this elusive goal. Basic concepts and mathematical fundamentals underlying image synthesis and radiosity algorithms are covered thoroughly. (A basic knowledge of undergraduate calculus is assumed). The algorithms that have been developed to implement the radiosity method ranging from environment subdivision to final display are discussed. Successes and difficulties in implementing and using these algorithms are highlighted. Extensions to the basic radiosity method to include glossy surfaces, fog or smoke, and realistic light sources are also described. There are 16 pages of full colour images and over 100 illustrations to explain the development and show the results of the radiosity method. Results of applications of this new technology from a variety of fields are also included. Michael Cohen has worked in the area of realistic image synthesis since 1983 and was instrumental in the development of the radiosity method. He is currently an assistant professor of computer science at Princeton University. John Wallace is a software engineer at 3D/EYE, Inc., where he is the project leader for the development of Hewlett-Packard's ATRCore radiosity and ray tracing library. A chapter on the basic concepts of image synthesis is contributed by Patrick Hanrahan. He has worked on the topic of image synthesis at Pixar, where he was instrumental in the development of the Renderman software. He has also led research on the hierarchical methods at Princeton University, where he is an associate professor of computer science. All three authors have written numerous articles on radiosity that have appeared in the SIGGAPH proceedings and elsewhere. They have also taught the SIGGRAPH course on radiosity for 5 years. The first comprehensive book written about radiosity Features applications from the fields of computer graphics, architecture, industrial design, and related computer aided design technologies Offers over 100 illustrations and 16 pages of full-color images demonstrating the results of radiosity methods Contains a chapter authored by Pat Hanrahan on the basic concepts of image synthesis and a foreword by Donald Greenberg
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Essential RenderMan®

Author: Ian Stephenson

Publisher: Springer Science & Business Media

ISBN: 1846283442

Category: Computers

Page: 266

View: 3162

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RenderMan has long been associated with top-end film production and is an essential tool for creating many of the effects and images in recent animated films (such as Monsters, Inc., Finding Nemo and The Incredibles). RenderMan is widely available and, with the demand for higher quality images, is now used by computer-based artists at all levels of the graphics industry. Intended to provide a straightforward and easy introduction to the basic techniques involved, this book provides an excellent grounding, enabling readers to confidently move to more advanced texts. This second edition includes a new chapter on global illumination, and, with plenty of illustrations and hands-on examples, Ian Stephenson: • gives an overview of RenderMan • explains how scenes are described • illustrates (among other things) how to create surfaces; colour; lighting; shadows; and depth of field, using RIB and the C API • introduces the techniques involved in creating shaders, applying textures and using global illumination
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