COMPUTER GRAPHICS PRINCIPLES AND PRACTICE EBOOK
Get this from a library! Computer graphics: principles and practice. [James D Foley;]. Computer graphics: principles and practice / John F. Hughes, Andries van Dam, Morgan McGuire, Revised ed. of: Computer graphics / James D. Foley. Copy of Computer Graphics: Principles and Practice in C (2nd Edition) James D. Foley, Andries Van Dam, Steven K. Feiner, John F. Hughes - eBook, PDF.
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Editorial Reviews. About the Author. John F. Hughes is a Professor of Computer Science at . This is the only book/ebook/website/anything I've found that even comes close to hitting the mark. I've read around 40% of it so far, and even though. By uniquely combining concepts and practical applications in computer graphics, four well-known authors provide here the most comprehensive, authoritative. Download at ==>>cittadelmonte.info?book= Computer Graphics: Principles and Practice read ebook Online PDF EPUB KINDLE.
Principles and Practice pdf Computer Graphics: Principles and Practice read online. John F. Hughes Pages: Addison-Wesley Professional Language: Principles and Practice, Third Edition, remains the most authoritative introduction to the field. The first edition, the original "Foley and van Dam," helped to define computer graphics and how it could be taught.
Your rating has been recorded. Write a review Rate this item: Preview this item Preview this item. Computer graphics: James D Foley Publisher: Reading, Mass.
Computer graphics : principles and practice
Addison-Wesley systems programming series. Subjects Computer graphics. View all subjects More like this Similar Items. Find a copy online Links to this item Google Internet Archive. Allow this favorite library to be seen by others Keep this favorite library private.
Computer Graphics: Principles and Practice
Find a copy in the library Finding libraries that hold this item Details Additional Physical Format: Print version: Computer graphics. Document, Internet resource Document Type: James D Foley Find more information about: James D Foley. Reviews User-contributed reviews Add a review and share your thoughts with other readers.
Be the first. Add a review and share your thoughts with other readers. Similar Items Related Subjects: Understanding both aspects helps us better design graphics algorithms and systems. We discuss basic visual processing, constancy, and continuation, and how different kinds of visual cues help our brains form hypotheses about the world.
We discuss primarily static perception of shape, leaving discussion of the perception of motion to Chapter 35, and of the perception of color to Chapter The process of constructing a 3D scene to be rendered using the classic fixed-function graphics pipeline is composed of distinct steps such as specifying the geometry of components, applying surface materials to components, combining components to form complex objects, and placing lights and cameras.
WPF provides an environment suitable for learning about and experimenting with this classic pipeline. We first present the essentials of 3D scene construction, and then further extend the discussion to introduce hierarchical modeling. We review basic facts about equations of lines and planes, areas, convexity, and parameterization.
We discuss inside-outside testing for points in polygons. We describe barycentric coordinates, and present the notational conventions that are used throughout the book, including the notation for functions. We present a graphics-centric view of vectors, and introduce the notion of covectors.
The triangle mesh is a fundamental structure in graphics, widely used for representing shape. We describe 1D meshes polylines in 2D and generalize to 2D meshes in 3D. We discuss several representations for triangle meshes, simple operations on meshes such as computing the boundary, and determining whether a mesh is oriented.
A real-valued function defined at the vertices of a mesh can be extended linearly across each face by barycentric interpolation to define a function on the entire mesh. Such extensions are used in texture mapping, for instance.
By considering what happens when a single vertex value is 1, and all others are 0, we see that all our piecewise-linear extensions are combinations of certain basic piecewise linear mesh functions; replacing these basis functions with other, smoother functions can lead to smoother interpolation of values.
Linear and affine transformations are the building blocks of graphics. They occur in modeling, in rendering, in animation, and in just about every other context imaginable. They are the natural tools for transforming objects represented as meshes, because they preserve the mesh structure perfectly. We introduce linear and affine transformations in the plane, because most of the interesting phenomena are present there, the exception being the behavior of rotations in three dimensions, which we discuss in Chapter Transformations in 3-space are analogous to those in the plane, except for rotations: In the plane, we can swap the order in which we perform two rotations about the origin without altering the result; in 3-space, we generally cannot.
Some of these techniques are applied to user-interface designs in Chapter Because we represent so many things in graphics with arrays of three floating-point numbers RGB colors, locations in 3-space, vectors in 3-space, covectors in 3-space, etc.
We present a sample mathematics library that you can use to avoid such problems. While such a library may have no place in high-performance graphics, where the overhead of type checking would be unreasonable, it can be very useful in the development of programs in their early stages.
To convert a model of a 3D scene to a 2D image seen from a particular point of view, we have to specify the view precisely. The rendering process turns out to be particularly simple if the camera is at the origin, looking along a coordinate axis, and if the field of view is 90 degrees in each direction. We therefore transform the general problem to the more specific one. We discuss how the virtual camera is specified, and how we transform any rendering problem to one in which the camera is in a standard position with standard characteristics.
We also discuss the specification of parallel as opposed to perspective views.
The real world contains too much detail to simulate efficiently from first principles of physics and geometry. Models make graphics computationally tractable but introduce restrictions and errors. We explore some pervasive approximations and their limitations.
Computer Graphics: Principles and Practice, 3rd Edition
In many cases, we have a choice between competing models with different properties. A 3D renderer identifies the surface that covers each pixel of an image, and then executes some shading routine to compute the value of the pixel.
We introduce a set of coverage algorithms and some straw-man shading routines, and revisit the graphics pipeline abstraction. These are practical design points arising from general principles of geometry and processor architectures.
For coverage, we derive the ray-casting and rasterization algorithms and then build the complete source code for a render on top of it. This requires graphics-specific debugging techniques such as visualizing intermediate results. Architecture-aware optimizations dramatically increase the performance of these programs, albeit by limiting abstraction. Alternatively, we can move abstractions above the pipeline to enable dedicated graphics hardware.
We port our render to the programmable shading framework common to such APIs. There is great diversity in the feature sets and design goals among 3D graphics platforms.
Platforms supporting games render with the highest possible speed to ensure interactivity, while those used by the special effects industry sacrifice speed for the utmost in image quality.
We present a broad overview of modern 3D platforms with an emphasis on the design goals behind the variations. Much of graphics produces images as output. We describe how images are stored, what information they can contain, and what they can represent, along with the importance of knowing the precise meaning of the pixels in an image file. We show how to composite images i.
The pattern of light arriving at a camera sensor can be thought of as a function defined on a 2D rectangle, the value at each point being the light energy density arriving there. The resultant image is an array of values, each one arrived at by some sort of averaging of the input function. The relationship between these two functions—one defined on a continuous 2D rectangle, the other defined on a rectangular grid of points—is a deep one.
We study the relationship with the tools of Fourier analysis, which lets us understand what parts of the incoming signal can be accurately captured by the discrete signal. We apply the ideas of the previous two chapters to a concrete example—enlarging and shrinking of images—to illustrate their use in practice. We see that when an image, conventionally represented, is shrunk, problems will arise unless certain high-frequency information is removed before the shrinking process.
Texturing, and its variants, add visual richness to models without introducing geometric complexity. We discuss basic texturing and its implementation in software, and some of its variants, like bump mapping and displacement mapping, and the use of 1D and 3D textures.
Certain interaction techniques use a substantial amount of the mathematics of transformations, and therefore are more suitable for a book like ours than one that concentrates on the design of the interaction itself, and the human factors associated with that design. We illustrate these ideas with three 3D manipulators—the arcball, trackball, and Unicam—and with a a multitouch interface for manipulating images.
Splines make sense not only in the plane, but also in 3-space and in 1-space, where they provide a means of interpolating a sequence of values with various degrees of continuity. Splines, as a modeling tool in graphics, have been in part supplanted by subdivision curves which we saw in the form of corner cutting curves in Chapter 4 and subdivision surfaces.
The two classes—splines and subdivision—are closely related. We demonstrate this for curves in this chapter; a similar approach works for surfaces.
Spline surfaces and subdivision surfaces are natural generalizations of spline and subdivision curves. Surfaces are built from rectangular patches, and when these meet four at a vertex, the generalization is reasonably straightforward. Just as in the case of curves, subdivision surfaces, away from exceptional vertices, turn out to be identical to spline surfaces.
We discuss spline patches, Catmull-Clark subdivision, other subdivision approaches, and the problems of exceptional points.
Computer graphics : principles and practice (eBook, ) [cittadelmonte.info]
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