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.

The latest developments in rendering, visualization, and rasterization hardware are reported in this volume, which contains revised versions of thecontributions to the Sixth Eurographics Workshop on Graphics Hardware, held in Vienna in September 1991 in conjunction with the Eurographics '91 Conference. The book has five parts and a keynote paper, "Issues and Directions for Graphics Hardware Accelerators", by Kurt Akeley. The first part of the book concerns graphics hardware design, including simulation and silicon compilers. The second part contains two papers on graphics systems. The third part focuses on volume (voxel-based) machines, describing two devices to facilitate transformations of volumes. The fourth part includes papers on rasterization systems, including character rasterization and scan-conversion of triangular faces. The papers in the last part of the book focus on rendering machines. They include a programmable rendering engine, primitive shaders, and radiosity implementation on a parallel architecture.

Scientific visualization is a new and rapidly growing area in which efforts from computer graphics research and many scientific and engineering disciplines are integrated. Its aim is to enhance interpretation and understanding by scientists of large amounts of data from measurements or complex computer simulations, using computer generated images and animation sequences. It exploits the power of human visual perception to identify trends and structures, and recognize shapes and patterns. Development of new numerical simulation methods in many areas increasingly depends on visualization as an effective way to obtain an intuitive understanding of a problem. This book contains a selection of papers presented at the second Eurographics workshop on Visualization in Scientific Computing, held in Delft, the Netherlands, in April 1991. Theissues addressed are visualization tool and system design, new presentation techniques for volume data and vector fields, and numerous case studies in scientific visualization. Application areas include geology, medicine, fluid dynamics, molecular science, and environmental protection. The book will interest researchers and students in computer graphics and scientists from many disciplines interested in recent results in visual data analysis and presentation. It reflects the state of the art in visualization research and shows a wide variety of experimental systems and imaginative applications.

Since its very existence as a separate field within computer science, computer graphics had to make extensive use of non-trivial mathematics, for example, projective geometry, solid modelling, and approximation theory. This interplay of mathematics and computer science is exciting, but also makes it difficult for students and researchers to assimilate or maintain a view of the necessary mathematics. The possibilities offered by an interdisciplinary approach are still not fully utilized. This book gives a selection of contributions to a workshop held near Genoa, Italy, in October 1991, where a group of mathematicians and computer scientists gathered to explore ways of extending the cooperation between mathematics and computer graphics.

This volume is a record of the first Eurographics Workshop on Multimedia, held at the department of Numerical Analysis and Computing Science (NADA), Royal Institute of Technology, Stockholm, April 18-19, 1991. Eurographics is the European Association for Computer Graphics. It is a non-profit organization, one of whose activities is organizing workshops to provide an interface between academic and industrial research in the field of computer graphics. The idea of holding a Eurographics workshop on multimedia was put forward at the Eurographics conference in 1989. Following the success of this first workshop, a second workshop has been announced, to take place in Darmstadt, May 4-6, 1992. The Stockholm workshop met with great interest and many good contributions were received by the program committee. There were approximately 40 participants and 23 presentations were given - so many indeed that one might characterize the workshop as a working conference - and there were many discussions focusing on the presentations. The presentations dealt with a range of topics, including the clarification of ideas about the different concepts in multimedia, object-oriented methods for multimedia, multimedia from psychological perspectives, synchronization problems in multimedia, cooperative work using multimedia, and building multimedia interfaces. The presentations were the focus for numerous discussions. There was also a small exhibition of four different multimedia systems, representing the spectrum from research prototypes to commercial products.

This book constitutes the refereed proceedings of the 37th Computer Graphics International Conference, CGI 2020, held in Geneva, Switzerland, in October 2020. The conference was held virtually. The 43 full papers presented together with 3 short papers were carefully reviewed and selected from 189 submissions. The papers address topics such as: virtual reality; rendering and textures; augmented and mixed reality; video processing; image processing; fluid simulation and control; meshes and topology; visual simulation and aesthetics; human computer interaction; computer animation; geometric computing; robotics and vision; scientific visualization; and machine learning for graphics.

Object-oriented concepts are particularly applicable to computer graphics in its broadest sense, including interaction, image synthesis, animation, and computer-aided design. The use of object-oriented techniques in computer graphics is a widely acknowledged way of dealing with the complexities encountered in graphics systems. But the field of object-oriented graphics (OOG) is still young and full of problems. This book reports on latest advances in this field and discusses how the discipline of OOG is being explored and developed. The topics covered include object-oriented constraint programming, object-oriented modeling of graphics applications to handle complexity, object-oriented techniques for developing user interfaces, and 3D modeling and rendering.

The goal of this book is to present the most advanced research works in realistic computer generated images. It is made up of the papers presented during a Eurographics workshop that has been held in Rennes (France) on June 1990. Although realism in computer graphics has existed for many years, we have considered that two research directions can now clearly be identified. One makes use of empirical methods to efficiently create images that look real. As opposed to this approach, the other orientation makes use of physics to produce images that are exact representations of the real world (at the expense of additional processing time), hence the term photosimulation which indeed was the subject of this book. The objectives of this workshop were to assemble experts from physics and computer graphics in order to contribute to the introduction of physics-based approaches in the field of computer generated images. The fact that this workshop was the first entirely devoted to this topic was a bet and fortunately it turned out that it was a success. The contents of this book is organized in five chapters: Efficient Ray Tracing Meth ods, Theory of Global Illumination Models, Photometric Algorithms, Form-Factor Cal culations and Physics-Based Methods.

This book is a collection of the best papers originally presented as state-of-the-art reports or tutorials at the Eurographics '91 conference in Vienna. A choice has been made giving priority to timeless information. Another goal was to cover all aspects of computer graphics - except hardware - as completely as possible from modelling to advanced visualization and communication. The ten contributions by internationally renowned experts fulfil this goal perfectly. Some important problem areas treated from different viewpoints thus enhancing and deepening the reader's perspective.

An Analysis of the Pre-Physical Database Design Heuristics to Thermal Investigations of Ics and Microstructures