By Topic

IEEE Computer Graphics and Applications

Issue 4 • Date July 1990

Filter Results

Displaying Results 1 - 8 of 8
  • Surfaces-techniques for cubic algebraic surfaces

    Publication Year: 1990, Page(s):14 - 25
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1057 KB)

    The tutorial presents some tools for free-form modeling with algebraic surfaces, that is, surfaces that can be defined using an implicit polynomial equation f(x, y, z)=0. Cubic algebraic surfaces (defined by an implicit equation of degree 3) are emphasized. While much of this material applies only to cubic surfaces, some applies to algebraic surfaces of any degree. This area of the tutorial introd... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Radiosity redistribution for dynamic environments

    Publication Year: 1990, Page(s):26 - 34
    Cited by:  Papers (21)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (947 KB)

    The radiosity algorithm is extended to dynamic environments, providing global-illumination simulations to scenes that are modified interactively. The illumination effects introduced by a change in position, shape, or attributes of any object in the scene are computed very rapidly by redistributing the energy already exchanged between objects. Corrections are made by shooting positive and negative ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Visibility determination on projected grid surfaces

    Publication Year: 1990, Page(s):36 - 43
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    An algorithm is presented for solving the hidden-line and hidden-surface problems on grid surfaces, such as graphs of bivariate functions specified by their values on a set of grid points. The algorithm is implemented in image space, taking advantage of the raster display resolution. The procedure examines the edges of a projected grid surface in a systematic order to find all points visible to th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • RenderMan: pursuing the future of graphics

    Publication Year: 1990, Page(s):44 - 49
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (665 KB)

    RenderMan, a powerful, consistent, yet simple 3-D interface that can adequately describe the most common rendering techniques and provides expandability for future growth is described. The RenderMan interface partitions the process of generating realistic images into two distinct areas, modeling and rendering. RenderMan's features are briefly outlined, and the RenderMan Shading language and interf... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A visualization programming environment for multicomputers

    Publication Year: 1990, Page(s):50 - 58
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (747 KB)

    The programming and run-time environment used for the authors' multicomputer visualization software are described. The particular approach to using multicomputers for scientific visualization provides a uniform interface to system and communications facilities and promotes modularity and code reuse. No breakthrough technology is involved; rather, a collection of methods that have been developed by... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A dataflow toolkit for visualization

    Publication Year: 1990, Page(s):60 - 69
    Cited by:  Papers (35)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1145 KB)

    A toolkit known as apE is presented. Originally, this was an acronym for animation production environment, but apE has become known as a software designed for more than just animation. Previous work is briefly reviewed, and the processing of designing the system is discussed. Common elements in building any graphics system as well as elements particular to building a large system are examined. The... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Portability of interactive graphics software

    Publication Year: 1990, Page(s):70 - 75
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    One solution to obtaining a portable graphics architecture is presented. By abstracting the functionality present in most 3-D graphics systems and augmenting it with advanced rendering features, a highly portable, efficient, and modern graphics architecture for interactive 3-D graphics applications (including modeling, animation, and scientific visualization) is obtained. Using appropriate object-... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • NetCDF: an interface for scientific data access

    Publication Year: 1990, Page(s):76 - 82
    Cited by:  Papers (66)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (665 KB)

    The network common data form (NetCDF), a data abstraction for storing and retrieving multidimensional data, is described. NetCDF is distributed as a software library that provides a concrete implementation of that abstraction. The implementation provides a machine-independent format for representing scientific data. Together, the abstraction, library, and data format support the creation, access, ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE CG&A bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a unique combination of peer-reviewed feature articles and informal departments, including product announcements.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
L. Miguel Encarnação
University of Iowa