[PDF] Ray Tracing Of Box Spline Surfaces eBook

Author : Richard H. Bartels
Publisher : Morgan Kaufmann
Page : 504 pages
File Size : 20,60 MB
Release : 1995-09
Category : Computers
ISBN : 9781558604001

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As the field of computer graphics develops, techniques for modeling complex curves and surfaces are increasingly important. A major technique is the use of parametric splines in which a curve is defined by piecing together a succession of curve segments, and surfaces are defined by stitching together a mosaic of surface patches. An Introduction to Splines for Use in Computer Graphics and Geometric Modeling discusses the use of splines from the point of view of the computer scientist. Assuming only a background in beginning calculus, the authors present the material using many examples and illustrations with the goal of building the reader's intuition. Based on courses given at the University of California, Berkeley, and the University of Waterloo, as well as numerous ACM Siggraph tutorials, the book includes the most recent advances in computer-aided geometric modeling and design to make spline modeling techniques generally accessible to the computer graphics and geometric modeling communities.

Author : Balamati Choudhury
Publisher : Springer
Page : 76 pages
File Size : 38,63 MB
Release : 2015-09-24
Category : Science
ISBN : 9812878084

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This book describes the ray tracing effects inside different quadric surfaces. Analytical surface modeling is a priori requirement for electromagnetic (EM) analysis over aerospace platforms. Although numerically-specified surfaces and even non-uniform rational basis spline (NURBS) can be used for modeling such surfaces, for most practical EM applications, it is sufficient to model them as quadric surface patches and the hybrids thereof. It is therefore apparent that a vast majority of aerospace bodies can be conveniently modeled as combinations of simpler quadric surfaces, i.e. hybrid of quadric cylinders and quadric surfaces of revolutions. Hence the analysis of geometric ray tracing inside is prerequisite to analyzing the RF build-up. This book, describes the ray tracing effects inside different quadric surfaces such as right circular cylinder, general paraboloid of revolution (GPOR), GPOR frustum of different shaping parameters and the corresponding visualization of the ray-path details. Finally ray tracing inside a typical space module, which is a hybrid of a finite segment of right circular cylinder and a frustum of GPOR is analyzed for practical aerospace applications.

Author : Andrew S. Glassner
Publisher : Morgan Kaufmann
Page : 364 pages
File Size : 36,6 MB
Release : 1989-01-28
Category : Computers
ISBN : 9780122861604

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The creation of ever more realistic 3D images is central to the development of computer graphics. Ray tracing is one of the most popular and powerful means by which photo-realistic images can now be created. From fundamental principles to advanced applications, this guide provides how-to procedures and a detailed understanding of the scientific foundations of ray tracing. Richly illustrated with color and b&w plates.

Author : George Drettakis
Publisher : Springer Science & Business Media
Page : 351 pages
File Size : 44,54 MB
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 3709164532

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Some of the best current research on realistic rendering is included in this volume. It emphasizes the current "hot topics” in this field: image based rendering, and efficient local and global-illumination calculations. In the first of these areas, there are several contributions on real-world model acquisition and display, on using image-based techniques for illumination and on efficient ways to parameterize and compress images or light fields, as well as on clever uses of texture and compositing hardware to achieve image warping and 3D surface textures. In global and local illumination, there are contributions on extending the techniques beyond diffuse reflections, to include specular and more general angle dependent reflection functions, on efficiently representing and approximating these reflection functions, on representing light sources and on approximating visibility and shadows. Finally, there are two contributions on how to use knowledge about human perception to concentrate the work of accurate rendering only where it will be noticed, and a survey of computer graphics techniques used in the production of a feature length computer-animated film with full 3D characters.